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boost-1.22
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boost-1.21
| Author | SHA1 | Date | |
|---|---|---|---|
|
|
f9de57f922 |
241
build/bpl_static.dsp
Normal file
241
build/bpl_static.dsp
Normal file
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BIN
build/build.opt
Normal file
BIN
build/build.opt
Normal file
Binary file not shown.
55
build/como.mak
Normal file
55
build/como.mak
Normal file
@@ -0,0 +1,55 @@
|
||||
# Revision History:
|
||||
# 06 Mar 01 Fixed typo in use of "PYTHON_LIB" (Dave Abrahams)
|
||||
# 04 Mar 01 Changed library name to libboost_python.a (David Abrahams)
|
||||
|
||||
LIBSRC = \
|
||||
classes.cpp \
|
||||
conversions.cpp \
|
||||
extension_class.cpp \
|
||||
functions.cpp \
|
||||
init_function.cpp \
|
||||
module_builder.cpp \
|
||||
objects.cpp \
|
||||
types.cpp
|
||||
|
||||
LIBOBJ = $(LIBSRC:.cpp=.o)
|
||||
OBJ = $(LIBOBJ)
|
||||
|
||||
|
||||
ifeq "$(OS)" "Windows_NT"
|
||||
PYTHON_LIB=c:/tools/python/libs/python15.lib
|
||||
INC = -Ic:/cygnus/usr/include/g++-3 -Ic:/cygnus/usr/include -Ic:/boost -Ic:/tools/python/include
|
||||
MODULE_EXTENSION=dll
|
||||
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|
||||
INC = -I/usr/local/include/python1.5
|
||||
MODULE_EXTENSION=so
|
||||
endif
|
||||
|
||||
%.o: ../src/%.cpp
|
||||
como --pic $(INC) -o $*.o -c $<
|
||||
|
||||
%.d: ../src/%.cpp
|
||||
@echo creating $@
|
||||
@set -e; como -M $(INC) -c $< \
|
||||
| sed 's/\($*\)\.o[ :]*/\1.o $@ : /g' > $@; \
|
||||
[ -s $@ ] || rm -f $@
|
||||
|
||||
example1: example1.o libboost_python.a
|
||||
como-dyn-link -o ../example/hellomodule.$(MODULE_EXTENSION) $(PYTHON_LIB) example1.o -L. -lboost_python
|
||||
python ../example/test_example1.py
|
||||
|
||||
example1.o: ../example/example1.cpp
|
||||
como --pic $(INC) -o $*.o -c $<
|
||||
|
||||
clean:
|
||||
rm -rf *.o *.$(MODULE_EXTENSION) *.a *.d *.pyc *.bak a.out
|
||||
|
||||
libboost_python.a: $(LIBOBJ)
|
||||
rm -f libboost_python.a
|
||||
ar cq libboost_python.a $(LIBOBJ)
|
||||
|
||||
DEP = $(OBJ:.o=.d)
|
||||
|
||||
ifneq "$(MAKECMDGOALS)" "clean"
|
||||
include $(DEP)
|
||||
endif
|
||||
136
build/example1/example1.dsp
Normal file
136
build/example1/example1.dsp
Normal file
@@ -0,0 +1,136 @@
|
||||
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|
||||
CFG=example1 - Win32 DebugPython
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|
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# ADD BSC32 /nologo
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|
||||
!ELSEIF "$(CFG)" == "example1 - Win32 Debug"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 1
|
||||
# PROP BASE Output_Dir "Debug"
|
||||
# PROP BASE Intermediate_Dir "Debug"
|
||||
# PROP BASE Target_Dir ""
|
||||
# PROP Use_MFC 0
|
||||
# PROP Use_Debug_Libraries 1
|
||||
# PROP Output_Dir "Debug"
|
||||
# PROP Intermediate_Dir "Debug"
|
||||
# PROP Ignore_Export_Lib 0
|
||||
# PROP Target_Dir ""
|
||||
# ADD BASE CPP /nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "EXAMPLE1_EXPORTS" /YX /FD /GZ /c
|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "EXAMPLE1_EXPORTS" /YX /FD /GZ /c
|
||||
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD BASE RSC /l 0x409 /d "_DEBUG"
|
||||
# ADD RSC /l 0x409 /d "_DEBUG"
|
||||
BSC32=bscmake.exe
|
||||
# ADD BASE BSC32 /nologo
|
||||
# ADD BSC32 /nologo
|
||||
LINK32=link.exe
|
||||
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /debug /machine:I386 /pdbtype:sept
|
||||
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"Debug/hello.dll" /pdbtype:sept /libpath:"c:\tools\python\libs"
|
||||
|
||||
!ELSEIF "$(CFG)" == "example1 - Win32 DebugPython"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 1
|
||||
# PROP BASE Output_Dir "example1___Win32_DebugPython"
|
||||
# PROP BASE Intermediate_Dir "example1___Win32_DebugPython"
|
||||
# PROP BASE Ignore_Export_Lib 0
|
||||
# PROP BASE Target_Dir ""
|
||||
# PROP Use_MFC 0
|
||||
# PROP Use_Debug_Libraries 1
|
||||
# PROP Output_Dir "DebugPython"
|
||||
# PROP Intermediate_Dir "DebugPython"
|
||||
# PROP Ignore_Export_Lib 1
|
||||
# PROP Target_Dir ""
|
||||
# ADD BASE CPP /nologo /MDd /W3 /Gm /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "EXAMPLE1_EXPORTS" /YX /FD /GZ /c
|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "EXAMPLE1_EXPORTS" /D "BOOST_DEBUG_PYTHON" /YX /FD /GZ /EHs /c
|
||||
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD BASE RSC /l 0x409 /d "_DEBUG"
|
||||
# ADD RSC /l 0x409 /d "_DEBUG"
|
||||
BSC32=bscmake.exe
|
||||
# ADD BASE BSC32 /nologo
|
||||
# ADD BSC32 /nologo
|
||||
LINK32=link.exe
|
||||
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"Debug/hello.dll" /pdbtype:sept /libpath:"c:\tools\python\libs"
|
||||
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"DebugPython/hello_d.dll" /pdbtype:sept /libpath:"c:\tools\python\src\PCbuild"
|
||||
|
||||
!ENDIF
|
||||
|
||||
# Begin Target
|
||||
|
||||
# Name "example1 - Win32 Release"
|
||||
# Name "example1 - Win32 Debug"
|
||||
# Name "example1 - Win32 DebugPython"
|
||||
# Begin Group "Source Files"
|
||||
|
||||
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
|
||||
# Begin Source File
|
||||
|
||||
SOURCE=..\..\example\example1.cpp
|
||||
# End Source File
|
||||
# End Group
|
||||
# Begin Group "Header Files"
|
||||
|
||||
# PROP Default_Filter "h;hpp;hxx;hm;inl"
|
||||
# End Group
|
||||
# Begin Group "Resource Files"
|
||||
|
||||
# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
|
||||
# End Group
|
||||
# End Target
|
||||
# End Project
|
||||
73
build/gcc.mak
Normal file
73
build/gcc.mak
Normal file
@@ -0,0 +1,73 @@
|
||||
# Revision History
|
||||
|
||||
# 04 Mar 01 Changed library name to libboost_python.a, various cleanups,
|
||||
# attempted Cygwin compatibility. Still needs testing on Linux
|
||||
# (David Abrahams)
|
||||
|
||||
|
||||
LIBSRC = \
|
||||
classes.cpp \
|
||||
conversions.cpp \
|
||||
extension_class.cpp \
|
||||
functions.cpp \
|
||||
init_function.cpp \
|
||||
module_builder.cpp \
|
||||
objects.cpp \
|
||||
types.cpp
|
||||
|
||||
LIBOBJ = $(LIBSRC:.cpp=.o)
|
||||
OBJ = $(LIBOBJ)
|
||||
|
||||
PYTHON_INC=$(ROOT)/usr/local/include/python2.0
|
||||
# libpython2.0.dll
|
||||
|
||||
ifeq "$(OS)" "Windows_NT"
|
||||
ROOT=c:/cygnus
|
||||
INC = -Ic:/cygnus/usr/include/g++-3 -Ic:/cygnus/usr/include -Ic:/boost -I$(PYTHON_INC)
|
||||
MODULE_EXTENSION=dll
|
||||
PYTHON_LIB=c:/cygnus/usr/local/lib/python2.0/config/libpython2.0.dll.a
|
||||
else
|
||||
INC = -I$(PYTHON_INC)
|
||||
MODULE_EXTENSION=so
|
||||
endif
|
||||
|
||||
%.o: ../src/%.cpp
|
||||
g++ -fPIC -Wall -W $(INC) -o $*.o -c $<
|
||||
|
||||
%.d: ../src/%.cpp
|
||||
@echo creating $@
|
||||
@set -e; g++ -M $(INC) -c $< \
|
||||
| sed 's/\($*\)\.o[ :]*/\1.o $@ : /g' > $@; \
|
||||
[ -s $@ ] || rm -f $@
|
||||
|
||||
|
||||
PYTHON = python
|
||||
|
||||
test: comprehensive.o libboost_python.a
|
||||
g++ $(CXXFLAGS) -shared -o ../test/boost_python_test.$(MODULE_EXTENSION) comprehensive.o -L. -lboost_python $(PYTHON_LIB)
|
||||
$(PYTHON) ../test/comprehensive.py
|
||||
|
||||
comprehensive.o: ../test/comprehensive.cpp
|
||||
g++ $(CXXFLAGS) --template-depth-32 -fPIC -Wall -W $(INC) -o $*.o -c $<
|
||||
|
||||
|
||||
example1: example1.o libboost_python.a
|
||||
g++ $(CXXFLAGS) -shared -o ../example/hellomodule.$(MODULE_EXTENSION) example1.o -L. -lboost_python $(PYTHON_LIB)
|
||||
$(PYTHON) ../example/test_example1.py
|
||||
|
||||
example1.o: ../example/example1.cpp
|
||||
g++ $(CXXFLAGS) --template-depth-32 -fPIC -Wall -W $(INC) -o $*.o -c $<
|
||||
|
||||
|
||||
clean:
|
||||
rm -rf *.o *.$(MODULE_EXTENSION) *.a *.d *.pyc *.bak a.out
|
||||
|
||||
libboost_python.a: $(LIBOBJ)
|
||||
rm -f libboost_python.a
|
||||
ar cq libboost_python.a $(LIBOBJ)
|
||||
|
||||
DEP = $(OBJ:.o=.d)
|
||||
|
||||
ifneq "$(MAKECMDGOALS)" "clean"
|
||||
include $(DEP)
|
||||
endif
|
||||
166
build/linux_gcc.mak
Normal file
166
build/linux_gcc.mak
Normal file
@@ -0,0 +1,166 @@
|
||||
# Usage:
|
||||
#
|
||||
# Create a new empty directory anywhere (preferably not in the boost tree).
|
||||
# Copy this Makefile to that new directory and rename it to "Makefile"
|
||||
# Set the BOOST pathname below.
|
||||
#
|
||||
# make softlinks Create softlinks to source code and tests
|
||||
# make Compile all sources
|
||||
# make test Run doctest tests
|
||||
# make clean Remove all object files
|
||||
# make unlink Remove softlinks
|
||||
|
||||
BOOST= /net/cci/rwgk/boost
|
||||
|
||||
PYEXE= /usr/local/Python-1.5.2/bin/python
|
||||
PYINC= -I/usr/local/Python-1.5.2/include/python1.5
|
||||
#PYEXE= /usr/local/Python-2.0/bin/python
|
||||
#PYINC= -I/usr/local/Python-2.0/include/python2.0
|
||||
#STLPORTINC= -I/usr/local/STLport-4.1b3/stlport
|
||||
#STLPORTOPTS= \
|
||||
# -D__USE_STD_IOSTREAM \
|
||||
# -D__STL_NO_SGI_IOSTREAMS \
|
||||
# -D__STL_USE_NATIVE_STRING \
|
||||
# -D__STL_NO_NEW_C_HEADERS \
|
||||
# -D_RWSTD_COMPILE_INSTANTIATE=1
|
||||
#STLPORTINC= -I/usr/local/STLport-4.1b4/stlport
|
||||
#STLPORTOPTS= -D__NO_USE_STD_IOSTREAM -D__STL_NO_SGI_IOSTREAMS
|
||||
#STLPORTINC= -I/net/cci/xp/C++_C_headers
|
||||
|
||||
STDOPTS= -ftemplate-depth-21
|
||||
WARNOPTS=
|
||||
# use -msg_display_number to obtain integer tags for -msg_disable
|
||||
|
||||
CPP= g++
|
||||
CPPOPTS= $(STLPORTINC) $(STLPORTOPTS) -I$(BOOST) $(PYINC) \
|
||||
$(STDOPTS) $(WARNOPTS) -g
|
||||
MAKEDEP= -M
|
||||
|
||||
LD= g++
|
||||
LDOPTS= -shared
|
||||
|
||||
#HIDDEN= -hidden
|
||||
|
||||
BPL_SRC = $(BOOST)/libs/python/src
|
||||
BPL_TST = $(BOOST)/libs/python/test
|
||||
BPL_EXA = $(BOOST)/libs/python/example
|
||||
SOFTLINKS = \
|
||||
$(BPL_SRC)/classes.cpp \
|
||||
$(BPL_SRC)/conversions.cpp \
|
||||
$(BPL_SRC)/extension_class.cpp \
|
||||
$(BPL_SRC)/functions.cpp \
|
||||
$(BPL_SRC)/init_function.cpp \
|
||||
$(BPL_SRC)/module_builder.cpp \
|
||||
$(BPL_SRC)/objects.cpp \
|
||||
$(BPL_SRC)/types.cpp \
|
||||
$(BPL_TST)/comprehensive.cpp \
|
||||
$(BPL_TST)/comprehensive.hpp \
|
||||
$(BPL_TST)/comprehensive.py \
|
||||
$(BPL_TST)/doctest.py \
|
||||
$(BPL_EXA)/abstract.cpp \
|
||||
$(BPL_EXA)/getting_started1.cpp \
|
||||
$(BPL_EXA)/getting_started2.cpp \
|
||||
$(BPL_EXA)/getting_started3.cpp \
|
||||
$(BPL_EXA)/getting_started4.cpp \
|
||||
$(BPL_EXA)/getting_started5.cpp \
|
||||
$(BPL_EXA)/test_abstract.py \
|
||||
$(BPL_EXA)/test_getting_started1.py \
|
||||
$(BPL_EXA)/test_getting_started2.py \
|
||||
$(BPL_EXA)/test_getting_started3.py \
|
||||
$(BPL_EXA)/test_getting_started4.py \
|
||||
$(BPL_EXA)/test_getting_started5.py
|
||||
|
||||
OBJ = classes.o conversions.o extension_class.o functions.o \
|
||||
init_function.o module_builder.o \
|
||||
objects.o types.o
|
||||
DEPOBJ= $(OBJ) comprehensive.o abstract.o \
|
||||
getting_started1.o getting_started2.o getting_started3.o \
|
||||
getting_started4.o getting_started5.o
|
||||
|
||||
.SUFFIXES: .o .cpp
|
||||
|
||||
all: libboost_python.a boost_python_test.so abstract.so \
|
||||
getting_started1.so getting_started2.so getting_started3.so \
|
||||
getting_started4.so getting_started5.so
|
||||
|
||||
softlinks:
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ ! -e "$$bn" ]; then \
|
||||
echo "ln -s $$pn ."; \
|
||||
ln -s "$$pn" .; \
|
||||
else \
|
||||
echo "info: no softlink created (file exists): $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
unlink:
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ -L "$$bn" ]; then \
|
||||
echo "rm $$bn"; \
|
||||
rm "$$bn"; \
|
||||
elif [ -e "$$bn" ]; then \
|
||||
echo "info: not a softlink: $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
libboost_python.a: $(OBJ)
|
||||
rm -f libboost_python.a
|
||||
ar r libboost_python.a $(OBJ)
|
||||
|
||||
boost_python_test.so: $(OBJ) comprehensive.o
|
||||
$(LD) $(LDOPTS) $(OBJ) comprehensive.o -o boost_python_test.so -lm
|
||||
|
||||
abstract.so: $(OBJ) abstract.o
|
||||
$(LD) $(LDOPTS) $(OBJ) abstract.o -o abstract.so
|
||||
|
||||
getting_started1.so: $(OBJ) getting_started1.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started1.o -o getting_started1.so
|
||||
|
||||
getting_started2.so: $(OBJ) getting_started2.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started2.o -o getting_started2.so
|
||||
|
||||
getting_started3.so: $(OBJ) getting_started3.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started3.o -o getting_started3.so
|
||||
|
||||
getting_started4.so: $(OBJ) getting_started4.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started4.o -o getting_started4.so
|
||||
|
||||
getting_started5.so: $(OBJ) getting_started5.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started5.o -o getting_started5.so
|
||||
|
||||
.cpp.o:
|
||||
$(CPP) $(CPPOPTS) -c $*.cpp
|
||||
|
||||
test:
|
||||
$(PYEXE) comprehensive.py
|
||||
$(PYEXE) test_abstract.py
|
||||
$(PYEXE) test_getting_started1.py
|
||||
$(PYEXE) test_getting_started2.py
|
||||
$(PYEXE) test_getting_started3.py
|
||||
$(PYEXE) test_getting_started4.py
|
||||
$(PYEXE) test_getting_started5.py
|
||||
|
||||
clean:
|
||||
rm -f $(OBJ) libboost_python.a libboost_python.a.input
|
||||
rm -f comprehensive.o boost_python_test.so
|
||||
rm -f abstract.o abstract.so
|
||||
rm -f getting_started1.o getting_started1.so
|
||||
rm -f getting_started2.o getting_started2.so
|
||||
rm -f getting_started3.o getting_started3.so
|
||||
rm -f getting_started4.o getting_started4.so
|
||||
rm -f getting_started5.o getting_started5.so
|
||||
rm -f so_locations *.pyc
|
||||
rm -rf cxx_repository
|
||||
|
||||
depend:
|
||||
@ cat Makefile.nodepend; \
|
||||
for obj in $(DEPOBJ); \
|
||||
do \
|
||||
bn=`echo "$$obj" | cut -d. -f1`; \
|
||||
$(CPP) $(CPPOPTS) $(MAKEDEP) "$$bn".cpp; \
|
||||
done
|
||||
|
||||
210
build/mingw32.mak
Normal file
210
build/mingw32.mak
Normal file
@@ -0,0 +1,210 @@
|
||||
# Usage:
|
||||
#
|
||||
# Create a new empty directory anywhere (preferably not in the boost tree).
|
||||
# Copy this Makefile to that new directory and rename it to "Makefile"
|
||||
# Set the BOOST_* pathnames below.
|
||||
#
|
||||
# The idea is that the build directory is on a Unix filesystem that
|
||||
# is mounted on a PC using SAMBA. Use this makefile under both Unix
|
||||
# and Windows:
|
||||
#
|
||||
# Unix: make softlinks Create softlinks to source code and tests
|
||||
# Win: make Compile all sources
|
||||
# Win: make test Run doctest tests
|
||||
# Unix: make clean Remove all object files
|
||||
# Unix: make unlink Remove softlinks
|
||||
|
||||
# To install mingw32, follow instructions at:
|
||||
# http://starship.python.net/crew/kernr/mingw32/Notes.html
|
||||
# In particular, install:
|
||||
# ftp://ftp.xraylith.wisc.edu/pub/khan/gnu-win32/mingw32/gcc-2.95.2/gcc-2.95.2-msvcrt.exe
|
||||
# ftp://ftp.xraylith.wisc.edu/pub/khan/gnu-win32/mingw32/gcc-2.95.2/fixes/quote-fix-msvcrt.exe
|
||||
# http://starship.python.net/crew/kernr/mingw32/Python-1.5.2-mingw32.zip
|
||||
# Unpack the first two archives in the default locations and update your PATH.
|
||||
# Unpack the third archive in \usr.
|
||||
|
||||
# Note: comprehensive.cpp generates compiler errors and later crashes.
|
||||
# L:\boost\boost\python\detail\extension_class.hpp:643: warning:
|
||||
# alignment of `vtable for class
|
||||
# boost::python::detail::held_instance<bpl_test::Derived1>'
|
||||
# is greater than maximum object file alignment. Using 16.
|
||||
# Could this be fixed with compiler options?
|
||||
# -fhuge-objects looks interesting, but requires recompiling the C++ library.
|
||||
# (what exactly does that mean?)
|
||||
# -fvtable-thunks eliminates the compiler warning,
|
||||
# but "import boost_python_test" still causes a crash.
|
||||
|
||||
BOOST_UNIX= /net/cci/rwgk/boost
|
||||
BOOST_WIN= "L:\boost"
|
||||
|
||||
PYEXE= "C:\Program files\Python\python.exe"
|
||||
PYINC= -I"C:\usr\include\python1.5"
|
||||
PYLIB= "C:\usr\lib\libpython15.a"
|
||||
|
||||
STDOPTS= -ftemplate-depth-21
|
||||
WARNOPTS=
|
||||
|
||||
CPP= g++
|
||||
CPPOPTS= $(STLPORTINC) $(STLPORTOPTS) -I$(BOOST_WIN) $(PYINC) \
|
||||
$(STDOPTS) $(WARNOPTS) -g
|
||||
|
||||
LD= g++
|
||||
LDOPTS= -shared
|
||||
|
||||
BPL_SRC = $(BOOST_UNIX)/libs/python/src
|
||||
BPL_TST = $(BOOST_UNIX)/libs/python/test
|
||||
BPL_EXA = $(BOOST_UNIX)/libs/python/example
|
||||
SOFTLINKS = \
|
||||
$(BPL_SRC)/classes.cpp \
|
||||
$(BPL_SRC)/conversions.cpp \
|
||||
$(BPL_SRC)/extension_class.cpp \
|
||||
$(BPL_SRC)/functions.cpp \
|
||||
$(BPL_SRC)/init_function.cpp \
|
||||
$(BPL_SRC)/module_builder.cpp \
|
||||
$(BPL_SRC)/objects.cpp \
|
||||
$(BPL_SRC)/types.cpp \
|
||||
$(BPL_TST)/comprehensive.cpp \
|
||||
$(BPL_TST)/comprehensive.hpp \
|
||||
$(BPL_TST)/comprehensive.py \
|
||||
$(BPL_TST)/doctest.py \
|
||||
$(BPL_EXA)/abstract.cpp \
|
||||
$(BPL_EXA)/getting_started1.cpp \
|
||||
$(BPL_EXA)/getting_started2.cpp \
|
||||
$(BPL_EXA)/getting_started3.cpp \
|
||||
$(BPL_EXA)/getting_started4.cpp \
|
||||
$(BPL_EXA)/getting_started5.cpp \
|
||||
$(BPL_EXA)/passing_char.cpp \
|
||||
$(BPL_EXA)/test_abstract.py \
|
||||
$(BPL_EXA)/test_getting_started1.py \
|
||||
$(BPL_EXA)/test_getting_started2.py \
|
||||
$(BPL_EXA)/test_getting_started3.py \
|
||||
$(BPL_EXA)/test_getting_started4.py \
|
||||
$(BPL_EXA)/test_getting_started5.py
|
||||
|
||||
DEFS= \
|
||||
boost_python_test \
|
||||
abstract \
|
||||
getting_started1 \
|
||||
getting_started2 \
|
||||
getting_started3 \
|
||||
getting_started4 \
|
||||
getting_started5
|
||||
|
||||
OBJ = classes.o conversions.o extension_class.o functions.o \
|
||||
init_function.o module_builder.o \
|
||||
objects.o types.o
|
||||
|
||||
.SUFFIXES: .o .cpp
|
||||
|
||||
all: libboost_python.a boost_python_test.pyd abstract.pyd \
|
||||
getting_started1.pyd getting_started2.pyd getting_started3.pyd \
|
||||
getting_started4.pyd getting_started5.pyd
|
||||
|
||||
softlinks: defs
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ ! -e "$$bn" ]; then \
|
||||
echo "ln -s $$pn ."; \
|
||||
ln -s "$$pn" .; \
|
||||
else \
|
||||
echo "info: no softlink created (file exists): $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
unlink: rmdefs
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ -L "$$bn" ]; then \
|
||||
echo "rm $$bn"; \
|
||||
rm "$$bn"; \
|
||||
elif [ -e "$$bn" ]; then \
|
||||
echo "info: not a softlink: $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
defs:
|
||||
@ for def in $(DEFS); \
|
||||
do \
|
||||
echo "EXPORTS\n\tinit$$def" > $$def.def; \
|
||||
done
|
||||
|
||||
rmdefs:
|
||||
@ for def in $(DEFS); \
|
||||
do \
|
||||
rm $$def.def; \
|
||||
done
|
||||
|
||||
libboost_python.a: $(OBJ)
|
||||
del libboost_python.a
|
||||
ar r libboost_python.a $(OBJ)
|
||||
|
||||
DLLWRAPOPTS= -s --driver-name g++ -s
|
||||
--entry _DllMainCRTStartup@12 --target=i386-mingw32
|
||||
|
||||
boost_python_test.pyd: $(OBJ) comprehensive.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname boost_python_test.pyd \
|
||||
--def boost_python_test.def \
|
||||
$(OBJ) comprehensive.o $(PYLIB)
|
||||
|
||||
abstract.pyd: $(OBJ) abstract.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname abstract.pyd \
|
||||
--def abstract.def \
|
||||
$(OBJ) abstract.o $(PYLIB)
|
||||
|
||||
getting_started1.pyd: $(OBJ) getting_started1.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname getting_started1.pyd \
|
||||
--def getting_started1.def \
|
||||
$(OBJ) getting_started1.o $(PYLIB)
|
||||
|
||||
getting_started2.pyd: $(OBJ) getting_started2.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname getting_started2.pyd \
|
||||
--def getting_started2.def \
|
||||
$(OBJ) getting_started2.o $(PYLIB)
|
||||
|
||||
getting_started3.pyd: $(OBJ) getting_started3.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname getting_started3.pyd \
|
||||
--def getting_started3.def \
|
||||
$(OBJ) getting_started3.o $(PYLIB)
|
||||
|
||||
getting_started4.pyd: $(OBJ) getting_started4.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname getting_started4.pyd \
|
||||
--def getting_started4.def \
|
||||
$(OBJ) getting_started4.o $(PYLIB)
|
||||
|
||||
getting_started5.pyd: $(OBJ) getting_started5.o
|
||||
dllwrap $(DLLWRAPOPTS) \
|
||||
--dllname getting_started5.pyd \
|
||||
--def getting_started5.def \
|
||||
$(OBJ) getting_started5.o $(PYLIB)
|
||||
|
||||
.cpp.o:
|
||||
$(CPP) $(CPPOPTS) -c $*.cpp
|
||||
|
||||
test:
|
||||
$(PYEXE) comprehensive.py
|
||||
$(PYEXE) test_abstract.py
|
||||
$(PYEXE) test_getting_started1.py
|
||||
$(PYEXE) test_getting_started2.py
|
||||
$(PYEXE) test_getting_started3.py
|
||||
$(PYEXE) test_getting_started4.py
|
||||
$(PYEXE) test_getting_started5.py
|
||||
|
||||
clean:
|
||||
rm -f $(OBJ) libboost_python.a libboost_python.a.input
|
||||
rm -f comprehensive.o boost_python_test.pyd
|
||||
rm -f abstract.o abstract.pyd
|
||||
rm -f getting_started1.o getting_started1.pyd
|
||||
rm -f getting_started2.o getting_started2.pyd
|
||||
rm -f getting_started3.o getting_started3.pyd
|
||||
rm -f getting_started4.o getting_started4.pyd
|
||||
rm -f getting_started5.o getting_started5.pyd
|
||||
rm -f so_locations *.pyc
|
||||
rm -rf cxx_repository
|
||||
135
build/rwgk1/rwgk1.dsp
Normal file
135
build/rwgk1/rwgk1.dsp
Normal file
@@ -0,0 +1,135 @@
|
||||
# Microsoft Developer Studio Project File - Name="rwgk1" - Package Owner=<4>
|
||||
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|
||||
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|
||||
|
||||
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|
||||
|
||||
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|
||||
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
|
||||
!MESSAGE use the Export Makefile command and run
|
||||
!MESSAGE
|
||||
!MESSAGE NMAKE /f "rwgk1.mak".
|
||||
!MESSAGE
|
||||
!MESSAGE You can specify a configuration when running NMAKE
|
||||
!MESSAGE by defining the macro CFG on the command line. For example:
|
||||
!MESSAGE
|
||||
!MESSAGE NMAKE /f "rwgk1.mak" CFG="rwgk1 - Win32 DebugPython"
|
||||
!MESSAGE
|
||||
!MESSAGE Possible choices for configuration are:
|
||||
!MESSAGE
|
||||
!MESSAGE "rwgk1 - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
!MESSAGE "rwgk1 - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
!MESSAGE "rwgk1 - Win32 DebugPython" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
!MESSAGE
|
||||
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
MTL=midl.exe
|
||||
RSC=rc.exe
|
||||
|
||||
!IF "$(CFG)" == "rwgk1 - Win32 Release"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 0
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
# ADD CPP /nologo /MD /W3 /GX /O2 /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "RWGK1_EXPORTS" /YX /FD /c
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "RWGK1_EXPORTS" /YX /FD /GZ /c
|
||||
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||||
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||||
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||||
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||||
BSC32=bscmake.exe
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||||
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|
||||
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||||
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|
||||
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||||
|
||||
!ELSEIF "$(CFG)" == "rwgk1 - Win32 DebugPython"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 1
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
# ADD BASE CPP /nologo /MDd /W3 /Gm /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "RWGK1_EXPORTS" /YX /FD /GZ /c
|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "RWGK1_EXPORTS" /D "BOOST_DEBUG_PYTHON" /YX /FD /GZ /c
|
||||
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||||
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
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||||
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||||
# ADD RSC /l 0x409 /d "_DEBUG"
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||||
BSC32=bscmake.exe
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||||
# ADD BASE BSC32 /nologo
|
||||
# ADD BSC32 /nologo
|
||||
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||||
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||||
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"DebugPython/rwgk1_d.dll" /pdbtype:sept /libpath:"C:\tools\python\src\PCbuild"
|
||||
|
||||
!ENDIF
|
||||
|
||||
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|
||||
|
||||
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||||
# Name "rwgk1 - Win32 Debug"
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||||
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||||
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|
||||
|
||||
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||||
# Begin Source File
|
||||
|
||||
SOURCE=..\..\example\rwgk1.cpp
|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
145
build/test/test.dsp
Normal file
145
build/test/test.dsp
Normal file
@@ -0,0 +1,145 @@
|
||||
# Microsoft Developer Studio Project File - Name="test" - Package Owner=<4>
|
||||
# Microsoft Developer Studio Generated Build File, Format Version 6.00
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||||
# ** DO NOT EDIT **
|
||||
|
||||
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||||
|
||||
CFG=test - Win32 DebugPython
|
||||
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
|
||||
!MESSAGE use the Export Makefile command and run
|
||||
!MESSAGE
|
||||
!MESSAGE NMAKE /f "test.mak".
|
||||
!MESSAGE
|
||||
!MESSAGE You can specify a configuration when running NMAKE
|
||||
!MESSAGE by defining the macro CFG on the command line. For example:
|
||||
!MESSAGE
|
||||
!MESSAGE NMAKE /f "test.mak" CFG="test - Win32 DebugPython"
|
||||
!MESSAGE
|
||||
!MESSAGE Possible choices for configuration are:
|
||||
!MESSAGE
|
||||
!MESSAGE "test - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
!MESSAGE "test - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
!MESSAGE "test - Win32 DebugPython" (based on "Win32 (x86) Dynamic-Link Library")
|
||||
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|
||||
|
||||
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||||
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||||
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||||
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||||
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||||
MTL=midl.exe
|
||||
RSC=rc.exe
|
||||
|
||||
!IF "$(CFG)" == "test - Win32 Release"
|
||||
|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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||||
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|
||||
# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "TEST_EXPORTS" /YX /FD /Zm200 /c
|
||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
|
||||
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|
||||
|
||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "TEST_EXPORTS" /YX /FD /GZ /Zm200 /c
|
||||
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|
||||
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||||
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
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||||
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|
||||
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||||
BSC32=bscmake.exe
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||||
# ADD BASE BSC32 /nologo
|
||||
# ADD BSC32 /nologo
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||||
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||||
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|
||||
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"Debug/boost_python_test.dll" /pdbtype:sept /libpath:"c:\tools\python\libs"
|
||||
# SUBTRACT LINK32 /pdb:none
|
||||
|
||||
!ELSEIF "$(CFG)" == "test - Win32 DebugPython"
|
||||
|
||||
# PROP BASE Use_MFC 0
|
||||
# PROP BASE Use_Debug_Libraries 1
|
||||
# PROP BASE Output_Dir "test___Win32_DebugPython"
|
||||
# PROP BASE Intermediate_Dir "test___Win32_DebugPython"
|
||||
# PROP BASE Ignore_Export_Lib 0
|
||||
# PROP BASE Target_Dir ""
|
||||
# PROP Use_MFC 0
|
||||
# PROP Use_Debug_Libraries 1
|
||||
# PROP Output_Dir "DebugPython"
|
||||
# PROP Intermediate_Dir "DebugPython"
|
||||
# PROP Ignore_Export_Lib 1
|
||||
# PROP Target_Dir ""
|
||||
# ADD BASE CPP /nologo /MDd /W3 /Gm /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "TEST_EXPORTS" /YX /FD /GZ /Zm200 /c
|
||||
# ADD CPP /nologo /MDd /W3 /Gm- /GR /GX /Zi /Od /I "..\..\..\.." /I "c:\tools\python\include" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "TEST_EXPORTS" /D "BOOST_DEBUG_PYTHON" /YX /FD /GZ /Zm200 /EHs /c
|
||||
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
|
||||
# ADD BASE RSC /l 0x409 /d "_DEBUG"
|
||||
# ADD RSC /l 0x409 /d "_DEBUG"
|
||||
BSC32=bscmake.exe
|
||||
# ADD BASE BSC32 /nologo
|
||||
# ADD BSC32 /nologo
|
||||
LINK32=link.exe
|
||||
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /pdbtype:sept /libpath:"c:\tools\python\libs"
|
||||
# SUBTRACT BASE LINK32 /pdb:none
|
||||
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no /debug /machine:I386 /out:"DebugPython/boost_python_test_d.dll" /pdbtype:sept /libpath:"c:\tools\python\src\PCbuild"
|
||||
# SUBTRACT LINK32 /pdb:none
|
||||
|
||||
!ENDIF
|
||||
|
||||
# Begin Target
|
||||
|
||||
# Name "test - Win32 Release"
|
||||
# Name "test - Win32 Debug"
|
||||
# Name "test - Win32 DebugPython"
|
||||
# Begin Group "Source Files"
|
||||
|
||||
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
|
||||
# Begin Source File
|
||||
|
||||
SOURCE=..\..\test\comprehensive.cpp
|
||||
# End Source File
|
||||
# End Group
|
||||
# Begin Group "Header Files"
|
||||
|
||||
# PROP Default_Filter "h;hpp;hxx;hm;inl"
|
||||
# Begin Source File
|
||||
|
||||
SOURCE=..\..\test\comprehensive.hpp
|
||||
# End Source File
|
||||
# End Group
|
||||
# Begin Group "Resource Files"
|
||||
|
||||
# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
|
||||
# End Group
|
||||
# End Target
|
||||
# End Project
|
||||
170
build/tru64_cxx.mak
Normal file
170
build/tru64_cxx.mak
Normal file
@@ -0,0 +1,170 @@
|
||||
# Usage:
|
||||
#
|
||||
# Create a new empty directory anywhere (preferably not in the boost tree).
|
||||
# Copy this Makefile to that new directory and rename it to "Makefile"
|
||||
# Set the BOOST pathname below.
|
||||
#
|
||||
# make softlinks Create softlinks to source code and tests
|
||||
# make Compile all sources
|
||||
# make test Run doctest tests
|
||||
# make clean Remove all object files
|
||||
# make unlink Remove softlinks
|
||||
|
||||
BOOST= /net/cci/rwgk/boost
|
||||
|
||||
PYEXE= /usr/local/Python-1.5.2/bin/python
|
||||
PYINC= -I/usr/local/Python-1.5.2/include/python1.5
|
||||
#PYEXE= /usr/local/Python-2.0/bin/python
|
||||
#PYINC= -I/usr/local/Python-2.0/include/python2.0
|
||||
#STLPORTINC= -I/usr/local/STLport-4.1b3/stlport
|
||||
#STLPORTOPTS= \
|
||||
# -D__USE_STD_IOSTREAM \
|
||||
# -D__STL_NO_SGI_IOSTREAMS \
|
||||
# -D__STL_USE_NATIVE_STRING \
|
||||
# -D__STL_NO_NEW_C_HEADERS \
|
||||
# -D_RWSTD_COMPILE_INSTANTIATE=1
|
||||
#STLPORTINC= -I/usr/local/STLport-4.1b4/stlport
|
||||
#STLPORTOPTS= -D__NO_USE_STD_IOSTREAM -D__STL_NO_SGI_IOSTREAMS
|
||||
STLPORTINC= -I/net/cci/xp/C++_C_headers
|
||||
|
||||
STDOPTS= -std strict_ansi
|
||||
WARNOPTS= -msg_disable 186,450,1115
|
||||
# use -msg_display_number to obtain integer tags for -msg_disable
|
||||
|
||||
CPP= cxx
|
||||
CPPOPTS= $(STLPORTINC) $(STLPORTOPTS) -I$(BOOST) $(PYINC) \
|
||||
$(STDOPTS) $(WARNOPTS) -g
|
||||
MAKEDEP= -Em
|
||||
|
||||
LD= cxx
|
||||
LDOPTS= -shared -expect_unresolved 'Py*' -expect_unresolved '_Py*'
|
||||
|
||||
#HIDDEN= -hidden
|
||||
|
||||
BPL_SRC = $(BOOST)/libs/python/src
|
||||
BPL_TST = $(BOOST)/libs/python/test
|
||||
BPL_EXA = $(BOOST)/libs/python/example
|
||||
SOFTLINKS = \
|
||||
$(BPL_SRC)/classes.cpp \
|
||||
$(BPL_SRC)/conversions.cpp \
|
||||
$(BPL_SRC)/extension_class.cpp \
|
||||
$(BPL_SRC)/functions.cpp \
|
||||
$(BPL_SRC)/init_function.cpp \
|
||||
$(BPL_SRC)/module_builder.cpp \
|
||||
$(BPL_SRC)/objects.cpp \
|
||||
$(BPL_SRC)/types.cpp \
|
||||
$(BPL_TST)/comprehensive.cpp \
|
||||
$(BPL_TST)/comprehensive.hpp \
|
||||
$(BPL_TST)/comprehensive.py \
|
||||
$(BPL_TST)/doctest.py \
|
||||
$(BPL_EXA)/abstract.cpp \
|
||||
$(BPL_EXA)/getting_started1.cpp \
|
||||
$(BPL_EXA)/getting_started2.cpp \
|
||||
$(BPL_EXA)/getting_started3.cpp \
|
||||
$(BPL_EXA)/getting_started4.cpp \
|
||||
$(BPL_EXA)/getting_started5.cpp \
|
||||
$(BPL_EXA)/test_abstract.py \
|
||||
$(BPL_EXA)/test_getting_started1.py \
|
||||
$(BPL_EXA)/test_getting_started2.py \
|
||||
$(BPL_EXA)/test_getting_started3.py \
|
||||
$(BPL_EXA)/test_getting_started4.py \
|
||||
$(BPL_EXA)/test_getting_started5.py
|
||||
|
||||
OBJ = classes.o conversions.o extension_class.o functions.o \
|
||||
init_function.o module_builder.o \
|
||||
objects.o types.o
|
||||
DEPOBJ= $(OBJ) comprehensive.o abstract.o \
|
||||
getting_started1.o getting_started2.o getting_started3.o \
|
||||
getting_started4.o getting_started5.o
|
||||
|
||||
.SUFFIXES: .o .cpp
|
||||
|
||||
all: libboost_python.a boost_python_test.so abstract.so \
|
||||
getting_started1.so getting_started2.so getting_started3.so \
|
||||
getting_started4.so getting_started5.so
|
||||
|
||||
softlinks:
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ ! -e "$$bn" ]; then \
|
||||
echo "ln -s $$pn ."; \
|
||||
ln -s "$$pn" .; \
|
||||
else \
|
||||
echo "info: no softlink created (file exists): $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
unlink:
|
||||
@ for pn in $(SOFTLINKS); \
|
||||
do \
|
||||
bn=`basename "$$pn"`; \
|
||||
if [ -L "$$bn" ]; then \
|
||||
echo "rm $$bn"; \
|
||||
rm "$$bn"; \
|
||||
elif [ -e "$$bn" ]; then \
|
||||
echo "info: not a softlink: $$bn"; \
|
||||
fi; \
|
||||
done
|
||||
|
||||
libboost_python.a: $(OBJ)
|
||||
rm -f libboost_python.a
|
||||
cd cxx_repository; \
|
||||
ls -1 > ../libboost_python.a.input; \
|
||||
ar r ../libboost_python.a -input ../libboost_python.a.input
|
||||
rm -f libboost_python.a.input
|
||||
ar r libboost_python.a $(OBJ)
|
||||
|
||||
boost_python_test.so: $(OBJ) comprehensive.o
|
||||
$(LD) $(LDOPTS) $(OBJ) comprehensive.o -o boost_python_test.so -lm
|
||||
|
||||
abstract.so: $(OBJ) abstract.o
|
||||
$(LD) $(LDOPTS) $(OBJ) abstract.o -o abstract.so
|
||||
|
||||
getting_started1.so: $(OBJ) getting_started1.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started1.o -o getting_started1.so
|
||||
|
||||
getting_started2.so: $(OBJ) getting_started2.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started2.o -o getting_started2.so
|
||||
|
||||
getting_started3.so: $(OBJ) getting_started3.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started3.o -o getting_started3.so
|
||||
|
||||
getting_started4.so: $(OBJ) getting_started4.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started4.o -o getting_started4.so
|
||||
|
||||
getting_started5.so: $(OBJ) getting_started5.o
|
||||
$(LD) $(LDOPTS) $(OBJ) getting_started5.o -o getting_started5.so
|
||||
|
||||
.cpp.o:
|
||||
$(CPP) $(CPPOPTS) -c $*.cpp
|
||||
|
||||
test:
|
||||
$(PYEXE) comprehensive.py
|
||||
$(PYEXE) test_abstract.py
|
||||
$(PYEXE) test_getting_started1.py
|
||||
$(PYEXE) test_getting_started2.py
|
||||
$(PYEXE) test_getting_started3.py
|
||||
$(PYEXE) test_getting_started4.py
|
||||
$(PYEXE) test_getting_started5.py
|
||||
|
||||
clean:
|
||||
rm -f $(OBJ) libboost_python.a libboost_python.a.input
|
||||
rm -f comprehensive.o boost_python_test.so
|
||||
rm -f abstract.o abstract.so
|
||||
rm -f getting_started1.o getting_started1.so
|
||||
rm -f getting_started2.o getting_started2.so
|
||||
rm -f getting_started3.o getting_started3.so
|
||||
rm -f getting_started4.o getting_started4.so
|
||||
rm -f getting_started5.o getting_started5.so
|
||||
rm -f so_locations *.pyc
|
||||
rm -rf cxx_repository
|
||||
|
||||
depend:
|
||||
@ cat Makefile.nodepend; \
|
||||
for obj in $(DEPOBJ); \
|
||||
do \
|
||||
bn=`echo "$$obj" | cut -d. -f1`; \
|
||||
$(CPP) $(CPPOPTS) $(MAKEDEP) "$$bn".cpp; \
|
||||
done
|
||||
|
||||
212
doc/#index.html#
212
doc/#index.html#
@@ -1,212 +0,0 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
|
||||
<title>
|
||||
py_cpp Python/C++ binding documentation
|
||||
</title>
|
||||
<h1>
|
||||
<img src="../../../c++boost.gif" alt="c++boost.gif (8819 bytes)" width="277"
|
||||
align="center" height="86"> py_cpp<a href="#naming_contest">*</a>
|
||||
</h1>
|
||||
|
||||
<p>
|
||||
The source code for py_cpp, including a MSVC demo project is available <a
|
||||
href="py_cpp_20001106.zip">here</a>.
|
||||
|
||||
<h2>Synopsis</h2>
|
||||
<p>
|
||||
py_cpp is a system for quickly and easily interfacing C++ code with <a
|
||||
href="http:www.python.org">Python</a> such that the Python interface is
|
||||
very similar to the C++ interface. It is designed to be minimally
|
||||
intrusive on your C++ design. In most cases, you should not have to alter
|
||||
your C++ classes in any way in order to use them with py_cpp. The system
|
||||
<em>should</em> simply “reflect” your C++ classes and functions into
|
||||
Python. The major features of py_cpp include support for:
|
||||
<ul>
|
||||
<li><a href="inheritance.hml">Subclassing extension types in Python</a>
|
||||
<li><a href="overriding.html">Overriding virtual functions in Python</a>
|
||||
<li><a href="overloading.html">[Member] function Overloading</a>
|
||||
<li><a href="special.html#numeric_auto">Automatic wrapping of numeric operators</a>
|
||||
</ul>
|
||||
among others.
|
||||
|
||||
|
||||
<h2>Supported Platforms</h2>
|
||||
<p>py_cpp has been tested in the following configurations:
|
||||
|
||||
<ul>
|
||||
<li>Against Python 1.5.2 using the following compiler/library:
|
||||
|
||||
<ul>
|
||||
<li><a
|
||||
href="http://msdn.microsoft.com/vstudio/sp/vs6sp4/dnldoverview.asp">MSVC++6sp4</a>
|
||||
|
||||
<li><a
|
||||
href="http://msdn.microsoft.com/vstudio/sp/vs6sp4/dnldoverview.asp">MSVC++6sp4</a>/<a
|
||||
href="http://www.stlport.org">STLport 4.0</a>
|
||||
|
||||
<li><a href="http://gcc.gnu.org/">GCC 2.95.2</a> [by <a href="mailto:koethe@informatik.uni-hamburg.de">Ullrich
|
||||
Koethe</a>]
|
||||
|
||||
<li><a href="http://gcc.gnu.org/">GCC 2.95.2</a>/<a href="http://www.stlport.org">STLport 4.0</a>
|
||||
|
||||
<li>Compaq C++ V6.2-024 for Digital UNIX V5.0 Rev. 910 (an <a
|
||||
href="http://www.edg.com/">EDG</a>-based compiler) with <a
|
||||
href="http://www.stlport.org/beta.html">STLport-4.1b3</a> [by <a
|
||||
href="mailto:rwgk@cci.lbl.gov">Ralf W. Grosse-Kunstleve</a>]
|
||||
|
||||
<li>An upcoming release of <a href="http://www.metrowerks.com/products/windows/">Metrowerks CodeWarrior
|
||||
Pro6 for Windows</a> (the first release has a bug that's fatal to py_cpp)
|
||||
</ul>
|
||||
<br>
|
||||
<li>Against Python 2.0 using the following compiler/library combinations:
|
||||
<ul>
|
||||
<li><a
|
||||
href="http://msdn.microsoft.com/vstudio/sp/vs6sp4/dnldoverview.asp">MSVC++6sp4</a> [by
|
||||
<a href="mailto:aleaxit@yahoo.com">Alex Martelli</a>]
|
||||
</ul>
|
||||
</ul>
|
||||
|
||||
<p>Py_cpp requires the <a href="http://www.boost.org">boost</a> libraries, and is
|
||||
has been accepted for inclusion into the boost libraries pending “boostification“
|
||||
(completion of the documentation, change in some naming conventions and
|
||||
resolution of some namespace issues).
|
||||
|
||||
<h2>Credits</h2>
|
||||
<ul>
|
||||
<li><a href="mailto:abrahams@mediaone.net">David Abrahams</a> originated
|
||||
and wrote py_cpp.
|
||||
|
||||
<li><a href="mailto:koethe@informatik.uni-hamburg.de">Ullrich Koethe</a>
|
||||
had independently developed a similar system. When he discovered py_cpp,
|
||||
he generously contributed countless hours of coding and much insight into
|
||||
improving it. He is responsible for an early version of the support for <a
|
||||
href="overloading.html">function overloading</a> and wrote the support for
|
||||
<a href="inheritance.html#implicit_conversion">reflecting C++ inheritance
|
||||
relationships</a>. He has helped to improve error-reporting from both
|
||||
Python and C++, and has designed an extremely easy-to-use way of
|
||||
exposing <a href="special.html#numeric">numeric operators</a>, including
|
||||
a way to avoid explicit coercion by means of overloading.
|
||||
|
||||
<li>The members of the boost mailing list and the Python community supplied
|
||||
invaluable early feedback. In particular, Ron Clarke, Mark Evans, Anton
|
||||
Gluck, Ralf W. Grosse-Kunstleve, Prabhu Ramachandran, and Barry Scott took
|
||||
the brave step of trying to use py_cpp while it was still in early stages
|
||||
of development.
|
||||
|
||||
<li>The development of py_cpp wouldn't have been
|
||||
possible without the generous support of <a href="http://www.dragonsys.com/">Dragon Systems/Lernout and
|
||||
Hauspie, Inc</a> who supported its development as an open-source project.
|
||||
</ul>
|
||||
|
||||
<h2>Table of Contents</h2>
|
||||
|
||||
<ol>
|
||||
<li><a href="extending.html">A Brief Introduction to writing Python
|
||||
extension modules</a>
|
||||
|
||||
<li><a href="comparisons.html">Comparisons between py_cpp and other
|
||||
systems for extending Python</a>
|
||||
|
||||
<li><a href="example1.html">A Simple Example Using py_cpp</a>
|
||||
|
||||
<li><a href="overriding.html">Overridable Virtual Functions</a>
|
||||
|
||||
<li><a href="overloading.html">Function Overloading</a>
|
||||
|
||||
<li><a href="inheritance.html">Inheritance</a>
|
||||
|
||||
<li><a href="special.html">Special Method and Operator Support</a>
|
||||
|
||||
<li><a href="under-the-hood.html">A Peek Under the Hood</a>
|
||||
|
||||
<li><a href="building.html">Building a Module with Py_cpp</a>
|
||||
|
||||
<li>Advanced Topics
|
||||
|
||||
<ol>
|
||||
<li>class_builder<>
|
||||
|
||||
<li><a href="enums.html">enums</a>
|
||||
|
||||
<li>References
|
||||
|
||||
<li><a href="pointers.html">Pointers and Smart Pointers</a>
|
||||
|
||||
<li>Built-in Python Types
|
||||
|
||||
<li>Other Extension Types
|
||||
|
||||
<li>Templates
|
||||
</ol>
|
||||
|
||||
</ol>
|
||||
|
||||
<p>
|
||||
More sophisticated examples are given in
|
||||
<code>extclass_demo.cpp</code>, <code> extclass_demo.h</code>, and <code>
|
||||
test_extclass.py</code> in the <a href="py_cpp.tgz">source code
|
||||
archive</a>. There's much more here, and much more documentation to
|
||||
come...
|
||||
<p>
|
||||
Questions should be directed to <a href=
|
||||
"http://www.egroups.com/list/boost">the boost mailing list</a>.
|
||||
|
||||
<h2>Naming Contest</h2>
|
||||
|
||||
<p>
|
||||
Yes, I know py_cpp is a lousy name. Problem is, the best names my puny
|
||||
imagination can muster (IDLE and GRAIL) are taken, so I'm holding a
|
||||
naming contest. First prize? You get to pick the name<0.2wink> and
|
||||
you will be credited in the documentation. Names that have been suggested
|
||||
so far include:
|
||||
<ul>
|
||||
<li>
|
||||
Py++
|
||||
<li>
|
||||
Python++
|
||||
<li>
|
||||
Coil
|
||||
<li>
|
||||
SnakeSkin
|
||||
<li>
|
||||
CCCP - <b>C</b>onvert <b>C</b>++ <b>
|
||||
C</b>lasses to <b>P</b>ython
|
||||
<li>
|
||||
C<sup>3</sup>PO - <b>C</b>onvert <b>C</b>++
|
||||
<b>C</b>lasses to <b>P</b>ython <b>
|
||||
O</b>bjects
|
||||
<li>
|
||||
PALIN - <b>P</b>ython <b>
|
||||
A</b>ugmented-<b>L</b>anguage <b>
|
||||
IN</b>tegration
|
||||
<li>
|
||||
CLEESE - <b>C</b>++ <b>L</b>anguage <b>E</b>xtension <b>E</b>nvironment
|
||||
<b>S</b>upremely <b>E</b>asy
|
||||
<li>
|
||||
JONES - <b>J</b>ust <b>O</b>bscenely <b>N</b>eat <b>E</b>xtension
|
||||
<b>S</b>ystem
|
||||
<li>
|
||||
C-thru
|
||||
<li>
|
||||
SeamlessC
|
||||
<li>
|
||||
BorderCrossing
|
||||
<li>
|
||||
Perseus (because he solved a hairy problem involving snakes by using
|
||||
reflection and was invisible most of the time).
|
||||
</ul>
|
||||
Please <a href="http://www.egroups.com/list/boost">post</a> or send <a
|
||||
href="http:mailto:abrahams@mediaone.net">me</a> your suggestions!<br>
|
||||
<br>
|
||||
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as is” without
|
||||
express or implied warranty, and with no claim as to its suitability for
|
||||
any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
|
||||
|
||||
@@ -1,43 +1,157 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<title>
|
||||
Building a Module with Py_cpp
|
||||
</title>
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
|
||||
<meta name="generator" content="HTML Tidy, see www.w3.org">
|
||||
|
||||
<title>Building an Extension Module</title>
|
||||
|
||||
<div>
|
||||
<h1>
|
||||
<img width="277" height="86" id="_x0000_i1025" align="center"
|
||||
src="../../../c++boost.gif" alt= "c++boost.gif (8819 bytes)">Building a Module with Py_cpp
|
||||
</h1>
|
||||
<p>
|
||||
Right now, the only supported configuration is one in which the py_cpp
|
||||
source files are statically linked with the source for your extension
|
||||
module. You may first build them into a library and link it with your
|
||||
extension module source, but the effect is the same as compiling all
|
||||
the source files together. Some users have successfully built the
|
||||
py_cpp sources into a shared library, and support for a shared library
|
||||
build is planned, but not yet implemented. The py_cpp source files are:
|
||||
<blockquote>
|
||||
<pre>
|
||||
<a href="../../../libs/python/src/extension_class.cpp">extclass.cpp</a>
|
||||
<a href="../../../libs/python/src/functions.cpp">functions.cpp</a>
|
||||
<a href="../../../libs/python/src/init_function.cpp">init_function.cpp</a>
|
||||
<a href="../../../libs/python/src/module_builder.cpp">module.cpp</a>
|
||||
<a href="../../../libs/python/src/types.cpp">newtypes.cpp</a>
|
||||
<a href="../../../libs/python/src/objects.cpp">objects.cpp</a>
|
||||
<a href="../../../libs/python/src/conversions.cpp">py.cpp</a>
|
||||
<a href="../../../libs/python/src/classes.cpp">subclass.cpp</a>
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
Previous: <a href="under-the-hood.html">A Peek Under the Hood</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as
|
||||
is” without express or implied warranty, and with no claim as to
|
||||
its suitability for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
<h1><img width="277" height="86" id="_x0000_i1025" align="center" src=
|
||||
"../../../c++boost.gif" alt="c++boost.gif (8819 bytes)">Building an
|
||||
Extension Module</h1>
|
||||
|
||||
<p>The build process for Boost is currently undergoing some evolution,
|
||||
and, it is to be hoped, improvement. The following facts may help:
|
||||
|
||||
<ul>
|
||||
<li>
|
||||
Makefiles for various platforms reside in the Boost subdirectory
|
||||
<tt>libs/python/build</tt>:
|
||||
|
||||
<ul>
|
||||
<li><a href="../build/como.mak">como.mak</a> (Comeau C++ on Linux)
|
||||
|
||||
<li><a href="../build/linux_gcc.mak">linux_gcc.mak</a> (GCC on
|
||||
Linux/Unix)
|
||||
|
||||
<li><a href="../build/gcc.mak">gcc.mak</a> (older makefile for GCC
|
||||
on Linux/Unix. Deprecated.)
|
||||
|
||||
<li><a href="../build/mingw32.mak">mingw32.mak</a>
|
||||
(highly-specialized makefile for mingw32 (Win32-targeted) GCC. Read
|
||||
the header comment).
|
||||
|
||||
<li><a href="../build/tru64_cxx.mak">tru64_cxx.mak</a> (Compaq
|
||||
Alpha).
|
||||
</ul>
|
||||
<br>
|
||||
|
||||
<li>
|
||||
A project workspace for Microsoft Visual Studio is provided at <tt><a
|
||||
href="../build/build.dsw">libs/python/build/build.dsw</a></tt>. The
|
||||
include paths for this project may need to be changed for your
|
||||
installation. They currently assume that python has been installed at
|
||||
<tt>c:\tools\python</tt>. Three configurations of all targets are
|
||||
supported:
|
||||
|
||||
<ul>
|
||||
<li>Release (optimization, <tt>-DNDEBUG</tt>)
|
||||
|
||||
<li>Debug (no optimization <tt>-D_DEBUG</tt>)
|
||||
|
||||
<li>DebugPython (no optimization, <tt>-D_DEBUG
|
||||
-DBOOST_DEBUG_PYTHON</tt>)
|
||||
</ul>
|
||||
|
||||
<p>When extension modules are built with Visual C++ using
|
||||
<tt>-D_DEBUG</tt>, Python defaults to <i>force</i> linking with a
|
||||
special debugging version of the Python DLL. Since this debug DLL
|
||||
isn't supplied with the default Python installation for Windows,
|
||||
Boost.Python uses <tt><a href=
|
||||
"../../boost/python/detail/wrap_python.hpp">boost/python/detail/wrap_python.hpp</a></tt>
|
||||
to temporarily undefine <tt>_DEBUG</tt> when <tt>Python.h</tt> is
|
||||
<tt>#include</tt>d.
|
||||
|
||||
<p>If you want the extra runtime checks available with the debugging
|
||||
version of the library, <tt>#define BOOST_DEBUG_PYTHON</tt> to
|
||||
re-enable library forcing, and link with the DebugPython version of
|
||||
<tt>boost_python.lib</tt>. You'll need to get the debugging version
|
||||
of the Python executable (<tt>python_d.exe</tt>) and DLL
|
||||
(<tt>python20_d.dll</tt> or <tt>python15_d.dll</tt>). The Python
|
||||
sources include project files for building these. If you <a href=
|
||||
"http://www.python.org">download</a> them, change the name of the
|
||||
top-level directory to <tt>src</tt>, and install it under
|
||||
<tt>c:\tools\python</tt>, the workspace supplied by Boost.Python will
|
||||
be able to use it without modification. Just open
|
||||
<tt>c:\tools\python\src\pcbuild\pcbuild.dsw</tt> and invoke "build
|
||||
all" to generate all the debugging targets.
|
||||
|
||||
<p>If you do not <tt>#define BOOST_DEBUG_PYTHON</tt>, be sure that
|
||||
any source files <tt>#include <<a href=
|
||||
"../../boost/python/detail/wrap_python.hpp">boost/python/detail/wrap_python.hpp</a>></tt>
|
||||
instead of the usual <tt>Python.h</tt>, or you will have link
|
||||
incompatibilities.<br>
|
||||
<br>
|
||||
|
||||
|
||||
<li>
|
||||
The makefiles and Visual Studio project can all build at least the
|
||||
following:
|
||||
|
||||
<ul>
|
||||
<li>The <tt>boost_python</tt> library for static linking with your
|
||||
extension module. On the various Unices, this library will be
|
||||
called <tt>libboost_python.a</tt>. On Win32 platforms, the library
|
||||
will be called <tt>boost_python.lib</tt>.
|
||||
|
||||
<li>A comprehensive test of Boost.Python features. This test builds
|
||||
a Boost.Python extension module, then runs Python to import the
|
||||
module, and runs a series of tests on it using <tt><a href=
|
||||
"../test/doctest.py">doctest</a></tt>. Source code for the module
|
||||
and tests is available in the Boost subdirectory
|
||||
<tt>libs/python/test</tt>.<br>
|
||||
|
||||
|
||||
<li>Various examples from the Boost subdirectory
|
||||
<tt>libs/python/example</tt>. Which examples are built currently
|
||||
depends on the platform. The most up-to-date examples are
|
||||
<tt>getting_started</tt><i>n</i><tt>.cpp</tt> from <a href=
|
||||
"http://cci.lbl.gov/staff/ralf_grosse-kunstleve.html">Ralf W.
|
||||
Grosse-Kunstleve</a>. All these examples include a doctest modeled
|
||||
on the comprehensive test above.<br>
|
||||
<br>
|
||||
|
||||
</ul>
|
||||
|
||||
<li>
|
||||
If your platform isn't directly supported, you can build a static
|
||||
library from the following source files (in the Boost subdirectory
|
||||
<tt>libs/python/src</tt>), or compile them directly and link the
|
||||
resulting objects into your extension module:
|
||||
|
||||
<ul>
|
||||
<li><a href=
|
||||
"../../../libs/python/src/extension_class.cpp">extension_class.cpp</a>
|
||||
|
||||
<li><a href=
|
||||
"../../../libs/python/src/functions.cpp">functions.cpp</a>
|
||||
|
||||
<li><a href=
|
||||
"../../../libs/python/src/init_function.cpp">init_function.cpp</a>
|
||||
|
||||
<li><a href=
|
||||
"../../../libs/python/src/module_builder.cpp">module_builder.cpp</a>
|
||||
|
||||
<li><a href="../../../libs/python/src/types.cpp">types.cpp</a>
|
||||
|
||||
<li><a href="../../../libs/python/src/objects.cpp">objects.cpp</a>
|
||||
|
||||
<li><a href=
|
||||
"../../../libs/python/src/conversions.cpp">conversions.cpp</a>
|
||||
|
||||
<li><a href="../../../libs/python/src/classes.cpp">classes.cpp</a>
|
||||
</ul>
|
||||
</ul>
|
||||
|
||||
<p>Next: <a href="enums.html">Wrapping Enums</a> Previous: <a href=
|
||||
"under-the-hood.html">A Peek Under the Hood</a> Up: <a href=
|
||||
"index.html">Top</a>
|
||||
|
||||
<p>© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided ``as is'' without
|
||||
express or implied warranty, and with no claim as to its suitability for
|
||||
any purpose.
|
||||
|
||||
<p>Updated: Mar 6, 2001
|
||||
</div>
|
||||
|
||||
|
||||
@@ -6,20 +6,23 @@
|
||||
<div>
|
||||
<h1>
|
||||
<img width="277" height="86" id="_x0000_i1025" align="center"
|
||||
src="../../../c++boost.gif" alt= "c++boost.gif (8819 bytes)">Comparisons with
|
||||
src="../../../c++boost.gif" alt= "c++boost.gif (8819 bytes)"><br>
|
||||
Comparisons with
|
||||
Other Systems
|
||||
</h1>
|
||||
|
||||
<h2>CXX</h2>
|
||||
<p>
|
||||
Like py_cpp, <a href="http://cxx.sourceforge.net/">CXX</a> attempts to
|
||||
provide a C++-oriented interface to Python. In most cases, like py_cpp,
|
||||
it relieves the user from worrying about reference-counts. As far as I
|
||||
can tell, there is no support for subclassing C++ extension types in
|
||||
Python. An even more-significant difference is that a user's C++ code is
|
||||
still basically “dealing with Python objects”, though they are wrapped
|
||||
in C++ classes. This means such jobs as argument parsing and conversion
|
||||
are still left to be done explicitly by the user.
|
||||
Like Boost.Python, <a href="http://cxx.sourceforge.net/">CXX</a> attempts to
|
||||
provide a C++-oriented interface to Python. In most cases, as with the
|
||||
boost library, it relieves the user from worrying about
|
||||
reference-counts. Both libraries automatically convert thrown C++
|
||||
exceptions into Python exceptions. As far as I can tell, CXX has no
|
||||
support for subclassing C++ extension types in Python. An even
|
||||
more significant difference is that a user's C++ code is still basically
|
||||
``dealing with Python objects'', though they are wrapped in
|
||||
C++ classes. This means such jobs as argument parsing and conversion are
|
||||
still left to be done explicitly by the user.
|
||||
|
||||
<p>
|
||||
CXX claims to interoperate well with the C++ Standard Library
|
||||
@@ -38,11 +41,15 @@
|
||||
<p>
|
||||
As far as I can tell, CXX enables one to write what is essentially
|
||||
idiomatic Python code in C++, manipulating Python objects through the
|
||||
same fully-generic interfaces we use in Python. I think it would be fair
|
||||
to say that while you're not programming directly to the “bare
|
||||
metal” with CXX, in comparison to py_cpp, it presents a low-level
|
||||
interface to Python. That use is also supported by the py_cpp object
|
||||
wrappers.
|
||||
same fully-generic interfaces we use in Python. While you're hardly
|
||||
programming directly to the ``bare metal'' with CXX, it basically
|
||||
presents a ``C++-ized'' version of the Python 'C' API. Some fraction of
|
||||
that capability is available in Boost.Python through <tt><a
|
||||
href="../../../boost/python/objects.hpp">boost/python/objects.hpp</a></tt>,
|
||||
which provides C++ objects corresponding to Python lists, tuples,
|
||||
strings, and dictionaries, and through <tt><a
|
||||
href="../../../boost/python/callback.hpp">boost/python/callback.hpp</a></tt>,
|
||||
which allows you to call back into python with C++ arguments.
|
||||
|
||||
<p>
|
||||
<a href="mailto:dubois1@llnl.gov">Paul F. Dubois</a>, the original
|
||||
@@ -51,11 +58,11 @@
|
||||
fill in the other half. Here is his response to the commentary above:
|
||||
|
||||
<blockquote>
|
||||
“My intention with CXX was not to do what you are doing. It was to enable a
|
||||
``My intention with CXX was not to do what you are doing. It was to enable a
|
||||
person to write an extension directly in C++ rather than C. I figured others had
|
||||
the wrapping business covered. I thought maybe CXX would provide an easier
|
||||
target language for those making wrappers, but I never explored
|
||||
that.”<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
that.''<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
</blockquote>
|
||||
|
||||
<h2>SWIG</h2>
|
||||
@@ -65,28 +72,28 @@ that.”<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
languages. Swig relies on a parser to read your source code and produce
|
||||
additional source code files which can be compiled into a Python (or
|
||||
Perl or Tcl) extension module. It has been successfully used to create
|
||||
many Python extension modules. Like py_cpp, SWIG is trying to allow an
|
||||
many Python extension modules. Like Boost.Python, SWIG is trying to allow an
|
||||
existing interface to be wrapped with little or no change to the
|
||||
existing code. The documentation says “SWIG parses a form of ANSI C
|
||||
existing code. The documentation says ``SWIG parses a form of ANSI C
|
||||
syntax that has been extended with a number of special directives. As a
|
||||
result, interfaces are usually built by grabbing a header file and
|
||||
tweaking it a little bit.” For C++ interfaces, the tweaking has often
|
||||
tweaking it a little bit.'' For C++ interfaces, the tweaking has often
|
||||
proven to amount to more than just a little bit. One user
|
||||
writes:
|
||||
|
||||
<blockquote> “The problem with swig (when I used it) is that it
|
||||
<blockquote> ``The problem with swig (when I used it) is that it
|
||||
couldnt handle templates, didnt do func overloading properly etc. For
|
||||
ANSI C libraries this was fine. But for usual C++ code this was a
|
||||
problem. Simple things work. But for anything very complicated (or
|
||||
realistic), one had to write code by hand. I believe py_cpp doesn't have
|
||||
realistic), one had to write code by hand. I believe Boost.Python doesn't have
|
||||
this problem[<a href="#sic">sic</a>]... IMHO overloaded functions are very important to
|
||||
wrap correctly.”<br><i>-Prabhu Ramachandran</i>
|
||||
wrap correctly.''<br><i>-Prabhu Ramachandran</i>
|
||||
</blockquote>
|
||||
|
||||
<p>
|
||||
By contrast, py_cpp doesn't attempt to parse C++ - the problem is simply
|
||||
By contrast, Boost.Python doesn't attempt to parse C++ - the problem is simply
|
||||
too complex to do correctly. <a name="sic">Technically</a>, one does
|
||||
write code by hand to use py_cpp. The goal, however, has been to make
|
||||
write code by hand to use Boost.Python. The goal, however, has been to make
|
||||
that code nearly as simple as listing the names of the classes and
|
||||
member functions you want to expose in Python.
|
||||
|
||||
@@ -95,7 +102,7 @@ that.”<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
<a
|
||||
href="http://www.thekompany.com/projects/pykde/background.php3?dhtml_ok=1">SIP</a>
|
||||
is a system similar to SWIG, though seemingly more
|
||||
C++-oriented. The author says that like py_cpp, SIP supports overriding
|
||||
C++-oriented. The author says that like Boost.Python, SIP supports overriding
|
||||
extension class member functions in Python subclasses. It appears to
|
||||
have been designed specifically to directly support some features of
|
||||
PyQt/PyKDE, which is its primary client. Documentation is almost
|
||||
@@ -113,7 +120,7 @@ that.”<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
to a wide range of computer languages, including Common Lisp, C++, C,
|
||||
Modula-3, and Python. ILU can parse the ISL to generate a C++ language
|
||||
header file describing the interface, of which the user is expected to
|
||||
provide an implementation. Unlike py_cpp, this means that the system
|
||||
provide an implementation. Unlike Boost.Python, this means that the system
|
||||
imposes implementation details on your C++ code at the deepest level. It
|
||||
is worth noting that some of the C++ names generated by ILU are supposed
|
||||
to be reserved to the C++ implementation. It is unclear from the
|
||||
@@ -124,7 +131,7 @@ that.”<br><i>-<a href="mailto:dubois1@llnl.gov">Paul Dubois</a></i>
|
||||
<a
|
||||
href="http://www.python.org/workshops/1996-11/papers/GRAD/html/GRADcover.html">GRAD</a>
|
||||
is another very ambitious project aimed at generating Python wrappers for
|
||||
interfaces written in “legacy languages”, among which C++ is the first one
|
||||
interfaces written in ``legacy languages'', among which C++ is the first one
|
||||
implemented. Like SWIG, it aims to parse source code and automatically
|
||||
generate wrappers, though it appears to take a more sophisticated approach
|
||||
to parsing in general and C++ in particular, so it should do a much better
|
||||
@@ -148,73 +155,77 @@ an inheritance relationship?
|
||||
<h2>Zope ExtensionClasses</h2>
|
||||
<p>
|
||||
<a href="http:http://www.digicool.com/releases/ExtensionClass">
|
||||
ExtensionClasses in Zope</a> use the same underlying mechanism as py_cpp
|
||||
ExtensionClasses in Zope</a> use the same underlying mechanism as Boost.Python
|
||||
to support subclassing of extension types in Python, including
|
||||
multiple-inheritance. Both systems support pickling/unpickling of
|
||||
extension class instances in very similar ways. Both systems rely on the
|
||||
same “<a
|
||||
same ``<a
|
||||
href="http://www.python.org/workshops/1994-11/BuiltInClasses/Welcome.html">Don
|
||||
Beaudry Hack</a>” that also inspired Don's MESS System.
|
||||
Beaudry Hack</a>'' that also inspired Don's MESS System.
|
||||
<p>
|
||||
The major differences are:
|
||||
<ul>
|
||||
<li>Zope is entirely 'C' language-based. It doesn't require a C++
|
||||
compiler, so it's much more portable than Boost.Python, which stresses
|
||||
the limits of even some modern C++ implementations.
|
||||
|
||||
<li>
|
||||
py_cpp lifts the burden on the user to parse and convert function
|
||||
Boost.Python lifts the burden on the user to parse and convert function
|
||||
argument types. Zope provides no such facility.
|
||||
<li>
|
||||
py_cpp lifts the burden on the user to maintain Python
|
||||
Boost.Python lifts the burden on the user to maintain Python
|
||||
reference-counts.
|
||||
<li>
|
||||
py_cpp supports function overloading; Zope does not.
|
||||
Boost.Python supports function overloading; Zope does not.
|
||||
<li>
|
||||
py_cpp supplies a simple mechanism for exposing read-only and
|
||||
Boost.Python supplies a simple mechanism for exposing read-only and
|
||||
read/write access to data members of the wrapped C++ type as Python
|
||||
attributes.
|
||||
<li>
|
||||
Writing a Zope ExtensionClass is significantly more complex than
|
||||
exposing a C++ class to python using py_cpp (mostly a summary of the
|
||||
exposing a C++ class to python using Boost.Python (mostly a summary of the
|
||||
previous 4 items). <a href=
|
||||
"http://www.digicool.com/releases/ExtensionClass/MultiMapping.html">A
|
||||
Zope Example</a> illustrates the differences.
|
||||
<li>
|
||||
Zope's ExtensionClasses are specifically motivated by “the need for a
|
||||
C-based persistence mechanism”. Py_cpp's are motivated by the desire
|
||||
Zope's ExtensionClasses are specifically motivated by ``the need for a
|
||||
C-based persistence mechanism''. Boost.Python's are motivated by the desire
|
||||
to simply reflect a C++ API into Python with as little modification as
|
||||
possible.
|
||||
<li>
|
||||
The following Zope restriction does not apply to py_cpp: “At most one
|
||||
The following Zope restriction does not apply to Boost.Python: ``At most one
|
||||
base extension direct or indirect super class may define C data
|
||||
members. If an extension subclass inherits from multiple base
|
||||
extension classes, then all but one must be mix-in classes that
|
||||
provide extension methods but no data.”
|
||||
provide extension methods but no data.''
|
||||
<li>
|
||||
Zope requires use of the somewhat funky inheritedAttribute (search for
|
||||
“inheritedAttribute” on <a
|
||||
``inheritedAttribute'' on <a
|
||||
href="http://www.digicool.com/releases/ExtensionClass">this page</a>)
|
||||
method to access base class methods. In py_cpp, base class methods can
|
||||
method to access base class methods. In Boost.Python, base class methods can
|
||||
be accessed in the usual way by writing
|
||||
“<code>BaseClass.method</code>”.
|
||||
``<code>BaseClass.method</code>''.
|
||||
<li>
|
||||
Zope supplies some creative but esoteric idioms such as <a href=
|
||||
"http://www.digicool.com/releases/ExtensionClass/Acquisition.html">
|
||||
Acquisition</a>. No specific support for this is built into py_cpp.
|
||||
Acquisition</a>. No specific support for this is built into Boost.Python.
|
||||
<li>
|
||||
Zope's ComputedAttribute support is designed to be used from Python.
|
||||
<a href="special.html#getter_setter">The analogous feature of
|
||||
py_cpp</a> can be used from C++ or Python. The feature is arguably
|
||||
easier to use in py_cpp.
|
||||
Boost.Python</a> can be used from C++ or Python. The feature is arguably
|
||||
easier to use in Boost.Python.
|
||||
</ul>
|
||||
<p>
|
||||
Next: <a href="example1.html">A Simple Example Using Boost.Python</a>
|
||||
Previous: <a href="extending.html">A Brief Introduction to writing Python Extension Modules</a>
|
||||
Next: <a href="example1.html">A Simple Example Using py_cpp</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as is” without
|
||||
notice appears in all copies. This document is provided ``as is'' without
|
||||
express or implied warranty, and with no claim as to its suitability
|
||||
for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2001
|
||||
</div>
|
||||
|
||||
|
||||
192
doc/data_structures.txt
Normal file
192
doc/data_structures.txt
Normal file
@@ -0,0 +1,192 @@
|
||||
Given a real Python class 'A', a wrapped C++ class 'B', and this definition:
|
||||
|
||||
class C(A, B):
|
||||
def __init__(self):
|
||||
B.__init__(self)
|
||||
self.x = 1
|
||||
...
|
||||
|
||||
c = C()
|
||||
|
||||
this diagram describes the internal structure of an instance of 'C', including
|
||||
its inheritance relationships. Note that ExtensionClass<B> is derived from
|
||||
Class<ExtensionInstance>, and is in fact identical for all intents and purposes.
|
||||
|
||||
MetaClass<ExtensionInstance>
|
||||
+---------+ +---------+
|
||||
types.ClassType: | | | |
|
||||
| | | |
|
||||
| | | |
|
||||
+---------+ +---------+
|
||||
^ ^ ^
|
||||
PyClassObject | ExtensionClass<B> | |
|
||||
A: +------------+ | B: +------------+ | |
|
||||
| ob_type -+-+ | ob_type -+-----+ |
|
||||
| | ()<--+- __bases__ | |
|
||||
| | | __dict__ -+->{...} |
|
||||
| | 'B'<-+- __name__ | |
|
||||
+------------+ +------------+ |
|
||||
^ ^ |
|
||||
| | |
|
||||
+-----+ +-------------+ |
|
||||
| | |
|
||||
| | Class<ExtensionInstance> |
|
||||
| | C: +------------+ |
|
||||
| | | ob_type -+------------+
|
||||
tuple:(*, *)<--+- __bases__ |
|
||||
| __dict__ -+->{__module__, <methods, etc.>}
|
||||
'C' <-+- __name__ |
|
||||
+------------+
|
||||
^ (in case of inheritance from more than one
|
||||
| extension class, this vector would contain
|
||||
+---------------+ a pointer to an instance holder for the data
|
||||
| of each corresponding C++ class)
|
||||
| ExtensionInstance
|
||||
| c: +---------------------+ std::vector<InstanceHolderBase>
|
||||
+----+- __class__ | +---+--
|
||||
| m_wrapped_objects -+->| * | ...
|
||||
{'x': 1}<-+- __dict__ | +-|-+--
|
||||
+---------------------+ | InstanceValueHolder<B>
|
||||
| +--------------------------------+
|
||||
+-->| (contains a C++ instance of B) |
|
||||
+--------------------------------+
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
In our inheritance test cases in extclass_demo.cpp/test_extclass.py, we have the
|
||||
following C++ inheritance hierarchy:
|
||||
|
||||
+-----+ +----+
|
||||
| A1 | | A2 |
|
||||
+-----+ +----+
|
||||
^ ^ ^ ^ ^
|
||||
| | | | |
|
||||
+-----+ | +---------+-----+
|
||||
| | | |
|
||||
| +---+----------+
|
||||
.......!...... | |
|
||||
: A_callback : +-+--+ +-+--+
|
||||
:............: | B1 | | B2 |
|
||||
+----+ +----+
|
||||
^
|
||||
|
|
||||
+-------+---------+
|
||||
| |
|
||||
+-+-+ ......!.......
|
||||
| C | : B_callback :
|
||||
+---+ :............:
|
||||
|
||||
|
||||
A_callback and B_callback are used as part of the wrapping mechanism but not
|
||||
represented in Python. C is also not represented in Python but is delivered
|
||||
there polymorphically through a smart pointer.
|
||||
|
||||
This is the data structure in Python.
|
||||
|
||||
ExtensionClass<A1>
|
||||
A1: +------------+
|
||||
()<--+- __bases__ |
|
||||
| __dict__ -+->{...}
|
||||
+------------+
|
||||
^
|
||||
| ExtensionInstance
|
||||
| a1: +---------------------+ vec InstanceValueHolder<A1,A_callback>
|
||||
+---------+- __class__ | +---+ +---------------------+
|
||||
| | m_wrapped_objects -+->| *-+-->| contains A_callback |
|
||||
| +---------------------+ +---+ +---------------------+
|
||||
|
|
||||
| ExtensionInstance
|
||||
| pa1_a1: +---------------------+ vec InstancePtrHolder<auto_ptr<A1>,A1>
|
||||
+---------+- __class__ | +---+ +---+
|
||||
| | m_wrapped_objects -+->| *-+-->| *-+-+ A1
|
||||
| +---------------------+ +---+ +---+ | +---+
|
||||
| +->| |
|
||||
| ExtensionInstance +---+
|
||||
| pb1_a1: +---------------------+ vec InstancePtrHolder<auto_ptr<A1>,A1>
|
||||
+---------+- __class__ | +---+ +---+
|
||||
| | m_wrapped_objects -+->| *-+-->| *-+-+ B1
|
||||
| +---------------------+ +---+ +---+ | +---+
|
||||
| +->| |
|
||||
| ExtensionInstance +---+
|
||||
| pb2_a1: +---------------------+ vec InstancePtrHolder<auto_ptr<A1>,A1>
|
||||
+---------+- __class__ | +---+ +---+
|
||||
| | m_wrapped_objects -+->| *-+-->| *-+-+ B2
|
||||
| +---------------------+ +---+ +---+ | +---+
|
||||
| +->| |
|
||||
| +---+
|
||||
| ExtensionClass<A1>
|
||||
| A2: +------------+
|
||||
| ()<--+- __bases__ |
|
||||
| | __dict__ -+->{...}
|
||||
| +------------+
|
||||
| ^
|
||||
| | ExtensionInstance
|
||||
| a2: | +---------------------+ vec InstanceValueHolder<A2>
|
||||
| +-+- __class__ | +---+ +-------------+
|
||||
| | | m_wrapped_objects -+->| *-+-->| contains A2 |
|
||||
| | +---------------------+ +---+ +-------------+
|
||||
| |
|
||||
| | ExtensionInstance
|
||||
| pa2_a2: | +---------------------+ vec InstancePtrHolder<auto_ptr<A2>,A2>
|
||||
| +-+- __class__ | +---+ +---+
|
||||
| | | m_wrapped_objects -+->| *-+-->| *-+-+ A2
|
||||
| | +---------------------+ +---+ +---+ | +---+
|
||||
| | +->| |
|
||||
| | ExtensionInstance +---+
|
||||
| pb1_a2: | +---------------------+ vec InstancePtrHolder<auto_ptr<A2>,A2>
|
||||
| +-+- __class__ | +---+ +---+
|
||||
| | | m_wrapped_objects -+->| *-+-->| *-+-+ B1
|
||||
| | +---------------------+ +---+ +---+ | +---+
|
||||
| | +->| |
|
||||
| | +---+
|
||||
| |
|
||||
| +---------------+------------------------------+
|
||||
| | |
|
||||
+------+-------------------------+-|----------------------------+ |
|
||||
| | | | |
|
||||
| Class<ExtensionInstance> | | ExtensionClass<B1> | | ExtensionClass<B1>
|
||||
| DA1: +------------+ | | B1: +------------+ | | B2: +------------+
|
||||
(*,)<---+- __bases__ | (*,*)<---+- __bases__ | (*,*)<---+- __bases__ |
|
||||
| __dict__ -+->{...} | __dict__ -+->{...} | __dict__ -+->{...}
|
||||
+------------+ +------------+ +------------+
|
||||
^ ^ ^
|
||||
| ExtensionInstance | |
|
||||
| da1: +---------------------+ | vec InstanceValueHolder<A1,A_callback>
|
||||
+-------+- __class__ | | +---+ +---------------------+ |
|
||||
| m_wrapped_objects -+--|-->| *-+-->| contains A_callback | |
|
||||
+---------------------+ | +---+ +---------------------+ |
|
||||
+--------------------------------------+ |
|
||||
| ExtensionInstance |
|
||||
b1: | +---------------------+ vec InstanceValueHolder<B1,B_callback> |
|
||||
+-+- __class__ | +---+ +---------------------+ |
|
||||
| | m_wrapped_objects -+->| *-+-->| contains B_callback | |
|
||||
| +---------------------+ +---+ +---------------------+ |
|
||||
| |
|
||||
| ExtensionInstance |
|
||||
pb1_b1: | +---------------------+ vec InstancePtrHolder<auto_ptr<B1>,B1> |
|
||||
+-+- __class__ | +---+ +---+ |
|
||||
| | m_wrapped_objects -+->| *-+-->| *-+-+ B1 |
|
||||
| +---------------------+ +---+ +---+ | +---+ |
|
||||
| +->| | |
|
||||
| ExtensionInstance +---+ |
|
||||
pc_b1: | +---------------------+ vec InstancePtrHolder<auto_ptr<B1>,B1> |
|
||||
+-+- __class__ | +---+ +---+ |
|
||||
| | m_wrapped_objects -+->| *-+-->| *-+-+ C |
|
||||
| +---------------------+ +---+ +---+ | +---+ |
|
||||
| +->| | |
|
||||
| +---+ |
|
||||
| |
|
||||
| Class<ExtensionInstance> +---------------------------------------+
|
||||
| DB1: +------------+ | ExtensionInstance
|
||||
(*,)<---+- __bases__ | a2: | +---------------------+ vec InstanceValueHolder<A2>
|
||||
| __dict__ -+->{...} +-+- __class__ | +---+ +-------------+
|
||||
+------------+ | m_wrapped_objects -+->| *-+-->| contains A2 |
|
||||
^ +---------------------+ +---+ +-------------+
|
||||
| ExtensionInstance
|
||||
db1: | +---------------------+ vec InstanceValueHolder<B1,B_callback>
|
||||
+-+- __class__ | +---+ +----------------------+
|
||||
| m_wrapped_objects -+-->| *-+-->| contains B1_callback |
|
||||
+---------------------+ +---+ +----------------------+
|
||||
@@ -6,33 +6,54 @@
|
||||
<div>
|
||||
<h1>
|
||||
<img width="277" height="86" id="_x0000_i1025" align="center"
|
||||
src="../../../c++boost.gif" alt= "c++boost.gif (8819 bytes)">Wrapping enums
|
||||
src="../../../c++boost.gif" alt= "c++boost.gif (8819 bytes)"><br>
|
||||
Wrapping enums
|
||||
</h1>
|
||||
|
||||
<p>Because there is in general no way to deduce that a value of arbitrary type T
|
||||
is an enumeration constant, py_cpp cannot automatically convert enum values to
|
||||
and from Python. To handle this case, you need to decide how you want the enum
|
||||
to show up in Python (since Python doesn't have enums). Once you have done that,
|
||||
you can write some simple <code>from_python()</code> and
|
||||
<code>to_python()</code> functions.
|
||||
is an enumeration constant, the Boost Python Library cannot automatically
|
||||
convert enum values to and from Python. To handle this case, you need to decide
|
||||
how you want the enum to show up in Python (since Python doesn't have
|
||||
enums). Once you have done that, you can write some simple
|
||||
<code>from_python()</code> and <code>to_python()</code> functions.
|
||||
|
||||
<p>If you are satisfied with a Python int as a way to represent your enum
|
||||
values, py_cpp provides a shorthand for these functions. You just need to
|
||||
instantiate <code>boost::python::enum_as_int_converters<EnumType></code> where
|
||||
values, we provide a shorthand for these functions. You just need to cause
|
||||
<code>boost::python::enum_as_int_converters<EnumType></code> to be
|
||||
instantiated, where
|
||||
<code>EnumType</code> is your enumerated type. There are two convenient ways to do this:
|
||||
|
||||
<ol>
|
||||
<li><blockquote>
|
||||
<li>Explicit instantiation:
|
||||
|
||||
<blockquote><pre>
|
||||
template class boost::python::enum_as_int_converters<my_enum>;
|
||||
</blockquote></pre>
|
||||
|
||||
Some buggy C++ implementations require a class to be instantiated in the same
|
||||
namespace in which it is defined. In that case, the simple incantation above becomes:
|
||||
|
||||
<blockquote>
|
||||
<pre>
|
||||
...
|
||||
} // close my_namespace
|
||||
|
||||
// drop into namespace python and explicitly instantiate
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE // this is a gcc 2.95.2 bug workaround
|
||||
template class enum_as_int_converters<extclass_demo::EnumOwner::enum_type>;
|
||||
BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
namespace boost { namespace python {
|
||||
template class enum_as_int_converters<my_enum_type>;
|
||||
}} // namespace boost::python
|
||||
|
||||
namespace my_namespace { // re-open my_namespace
|
||||
...
|
||||
</pre>
|
||||
</blockquote>
|
||||
<li><blockquote><pre>
|
||||
|
||||
|
||||
<li>If you have such an implementation, you may find this technique more convenient
|
||||
<blockquote><pre>
|
||||
// instantiate as base class in any namespace
|
||||
struct EnumTypeConverters
|
||||
: boost::python::py_enum_as_int_converters<EnumType>
|
||||
: boost::python::enum_as_int_converters<EnumType>
|
||||
{
|
||||
};
|
||||
</blockquote></pre>
|
||||
@@ -66,7 +87,8 @@ BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
<code>long</code> type.
|
||||
|
||||
You may also want to add a bunch of lines like this to your module
|
||||
initialization:
|
||||
initialization. These bind the corresponding enum values to the appropriate
|
||||
names so they can be used from Python:
|
||||
|
||||
<blockquote><pre>
|
||||
mymodule.add(boost::python::to_python(enum_value_1), "enum_value_1");
|
||||
@@ -78,17 +100,21 @@ You can also add these to an extension class definition, if your enum happens to
|
||||
be local to a class and you want the analogous interface in Python:
|
||||
|
||||
<blockquote><pre>
|
||||
my_class.add(boost::python::to_python(enum_value_1), "enum_value_1");
|
||||
my_class.add(boost::python::to_python(enum_value_2), "enum_value_2");
|
||||
my_class_builder.add(boost::python::to_python(enum_value_1), "enum_value_1");
|
||||
my_class_builder.add(boost::python::to_python(enum_value_2), "enum_value_2");
|
||||
...
|
||||
</pre></blockquote>
|
||||
<p>
|
||||
Next: <a href="pointers.html">Pointers and Smart Pointers</a>
|
||||
Previous: <a href="building.html">Building an Extension Module</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as
|
||||
is” without express or implied warranty, and with no claim as to
|
||||
notice appears in all copies. This document is provided ``as
|
||||
is'' without express or implied warranty, and with no claim as to
|
||||
its suitability for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2001
|
||||
</div>
|
||||
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<title>
|
||||
A Simple Example Using py_cpp
|
||||
A Simple Example
|
||||
</title>
|
||||
<div>
|
||||
<h1>
|
||||
@@ -9,7 +9,7 @@
|
||||
"c++boost.gif (8819 bytes)">
|
||||
</h1>
|
||||
<h1>
|
||||
A Simple Example Using py_cpp
|
||||
A Simple Example
|
||||
</h1>
|
||||
<p>
|
||||
Suppose we have the following C++ API which we want to expose in
|
||||
@@ -18,104 +18,57 @@
|
||||
<pre>
|
||||
#include <string>
|
||||
|
||||
namespace hello {
|
||||
class world
|
||||
{
|
||||
public:
|
||||
world(int);
|
||||
~world();
|
||||
std::string get() const { return "hi, world"; }
|
||||
...
|
||||
};
|
||||
std::size_t length(const world& x) { return std::strlen(x.get()); }
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A couple of simple C++ functions that we want to expose to Python.
|
||||
std::string greet() { return "hello, world"; }
|
||||
int square(int number) { return number * number; }
|
||||
}
|
||||
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
Here is the C++ code for a python module called <code>hello</code>
|
||||
which exposes the API using py_cpp:
|
||||
Here is the C++ code for a python module called <tt>getting_started1</tt>
|
||||
which exposes the API.
|
||||
<blockquote>
|
||||
<pre>
|
||||
#include <boost/python/class_builder.hpp>
|
||||
// Python requires an exported function called init<module-name> in every
|
||||
// extension module. This is where we build the module contents.
|
||||
extern "C"
|
||||
#ifdef _WIN32
|
||||
__declspec(dllexport)
|
||||
#endif
|
||||
void inithello()
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started1)
|
||||
{
|
||||
try
|
||||
{
|
||||
// create an object representing this extension module
|
||||
boost::python::module_builder hello("hello");
|
||||
// Create the Python type object for our extension class
|
||||
boost::python::class_builder<hello::world> world_class(hello, "world");
|
||||
// Add the __init__ function
|
||||
world_class.def(boost::python::constructor<int>());
|
||||
// Add a regular member function
|
||||
world_class.def(&hello::world::get, "get");
|
||||
// Add a regular function to the module
|
||||
hello.def(hello::length, "length");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
boost::python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started1");
|
||||
|
||||
// Add regular functions to the module.
|
||||
this_module.def(greet, "greet");
|
||||
this_module.def(square, "square");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
// Win32 DLL boilerplate
|
||||
#if defined(_WIN32)
|
||||
#include <windows.h>
|
||||
extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD, LPVOID)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
#endif // _WIN32
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
That's it! If we build this shared library and put it on our <code>
|
||||
PYTHONPATH</code> we can now access our C++ class and function from
|
||||
PYTHONPATH</code> we can now access our C++ functions from
|
||||
Python.
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> import hello
|
||||
>>> hi_world = hello.world(3)
|
||||
>>> hi_world.get()
|
||||
'hi, world'
|
||||
>>> hello.length(hi_world)
|
||||
9
|
||||
>>> import getting_started1
|
||||
>>> print getting_started1.greet()
|
||||
hello, world
|
||||
>>> number = 11
|
||||
>>> print number, '*', number, '=', getting_started1.square(number)
|
||||
11 * 11 = 121
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
We can even make a subclass of <code>hello.world</code>:
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> class my_subclass(hello.world):
|
||||
... def get(self):
|
||||
... return 'hello, world'
|
||||
...
|
||||
>>> y = my_subclass(4)
|
||||
>>> y.get()
|
||||
'hello, world'
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
Pretty cool! You can't do that with an ordinary Python extension type!
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> hello.length(y)
|
||||
9
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
Of course, you may now have a slightly empty feeling in the pit of
|
||||
your little pythonic stomach. Perhaps you feel your subclass deserves
|
||||
to have a <code>length()</code> of <code>12</code>? If so, <a href=
|
||||
"overriding.html">read on</a>...
|
||||
<p>
|
||||
Previous: <a href="comparisons.html">Comparisons with other systems</a> Next: <a href="overriding.html">Overridable virtual functions</a> Up:
|
||||
Next: <a href="exporting_classes.html">Exporting Classes</a>
|
||||
Previous: <a href="comparisons.html">Comparisons with other systems</a> Up:
|
||||
<a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
@@ -124,6 +77,6 @@ extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD, LPVOID)
|
||||
express or implied warranty, and with no claim as to its suitability
|
||||
for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2000
|
||||
</div>
|
||||
|
||||
|
||||
144
doc/exporting_classes.html
Normal file
144
doc/exporting_classes.html
Normal file
@@ -0,0 +1,144 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<title>
|
||||
Exporting Classes
|
||||
</title>
|
||||
<div>
|
||||
<h1>
|
||||
<img width="277" height="86" id="_x0000_i1025" src="../../../c++boost.gif" alt=
|
||||
"c++boost.gif (8819 bytes)">
|
||||
</h1>
|
||||
<h1>
|
||||
Exporting Classes
|
||||
</h1>
|
||||
<p>
|
||||
Now let's expose a C++ class to Python:
|
||||
|
||||
<blockquote><pre>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A friendly class.
|
||||
class hello
|
||||
{
|
||||
public:
|
||||
hello(const std::string& country) { this->country = country; }
|
||||
std::string greet() const { return "Hello from " + country; }
|
||||
private:
|
||||
std::string country;
|
||||
};
|
||||
|
||||
// A function taking a hello object as an argument.
|
||||
std::string invite(const hello& w) {
|
||||
return w.greet() + "! Please come soon!";
|
||||
}
|
||||
}
|
||||
|
||||
</blockquote></pre> <p>
|
||||
To expose the class, we use a <tt>class_builder</tt> in addition to the
|
||||
<tt>module_builder</tt> from the previous example. Class member functions
|
||||
are exposed by using the <tt>def()</tt> member function on the
|
||||
<tt>class_builder</tt>:
|
||||
<blockquote><pre>
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started2)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started2");
|
||||
|
||||
// Create the Python type object for our extension class.
|
||||
python::class_builder<hello> hello_class(this_module, "hello");
|
||||
|
||||
// Add the __init__ function.
|
||||
hello_class.def(python::constructor<std::string>());
|
||||
// Add a regular member function.
|
||||
hello_class.def(&hello::greet, "greet");
|
||||
|
||||
// Add invite() as a regular function to the module.
|
||||
this_module.def(invite, "invite");
|
||||
|
||||
// Even better, invite() can also be made a member of hello_class!!!
|
||||
hello_class.def(invite, "invite");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
</blockquote></pre>
|
||||
<p>
|
||||
Now we can use the class normally from Python:
|
||||
|
||||
<blockquote><pre>
|
||||
>>> from getting_started2 import *
|
||||
>>> hi = hello('California')
|
||||
>>> hi.greet()
|
||||
'Hello from California'
|
||||
>>> invite(hi)
|
||||
'Hello from California! Please come soon!'
|
||||
>>> hi.invite()
|
||||
'Hello from California! Please come soon!'
|
||||
</blockquote></pre>
|
||||
|
||||
Notes:<ul>
|
||||
<li> We expose the class' constructor by calling <tt>def()</tt> on the
|
||||
<tt>class_builder</tt> with an argument whose type is
|
||||
<tt>constructor<</tt><i>params</i><tt>></tt>, where <i>params</i>
|
||||
matches the list of constructor argument types:
|
||||
|
||||
|
||||
<li>Regular member functions are defined by calling <tt>def()</tt> with a
|
||||
member function pointer and its Python name:
|
||||
|
||||
<li>Any function added to a class whose initial argument matches the class (or
|
||||
any base) will act like a member function in Python.
|
||||
</ul>
|
||||
<p>
|
||||
We can even make a subclass of <code>hello.world</code>:
|
||||
|
||||
<blockquote><pre>
|
||||
>>> class wordy(hello):
|
||||
... def greet(self):
|
||||
... return hello.greet(self) + ', where the weather is fine'
|
||||
...
|
||||
>>> hi2 = wordy('Florida')
|
||||
>>> hi2.greet()
|
||||
'Hello from Florida, where the weather is fine'
|
||||
>>> invite(hi2)
|
||||
'Hello from Florida! Please come soon!'
|
||||
</blockquote></pre>
|
||||
<p>
|
||||
Pretty cool! You can't do that with an ordinary Python extension type!
|
||||
|
||||
Of course, you may now have a slightly empty feeling in the pit of
|
||||
your little pythonic stomach. Perhaps you wanted to see the following
|
||||
<tt>wordy</tt> invitation:
|
||||
|
||||
<blockquote><pre>
|
||||
'Hello from Florida, where the weather is fine! Please come soon!'
|
||||
</blockquote></pre>
|
||||
|
||||
After all, <tt>invite</tt> calls <tt>hello::greet()</tt>, and you
|
||||
reimplemented that in your Python subclass, <tt>wordy</tt>. If so, <a
|
||||
href= "overriding.html">read on</a>...
|
||||
|
||||
<p>
|
||||
Next: <a href="overriding.html">Overridable virtual functions</a>
|
||||
Previous: <a href="example1.html">A Simple Example</a> Up:
|
||||
<a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided "as is" without
|
||||
express or implied warranty, and with no claim as to its suitability
|
||||
for any purpose.
|
||||
<p>
|
||||
Updated: Mar 6, 2001
|
||||
</div>
|
||||
|
||||
@@ -38,11 +38,11 @@
|
||||
</ul>
|
||||
This last item typically occupies a great deal of code in an extension
|
||||
module. Remember that Python is a completely dynamic language. A callable
|
||||
object receives its arguments in a tuple; it is up to that object to
|
||||
extract those arguments from the tuple, check their types, and raise
|
||||
appropriate exceptions. There are numerous other tedious details that need
|
||||
to be managed; too many to mention here. Py_cpp is designed to lift most of
|
||||
that burden.<br>
|
||||
object receives its arguments in a tuple; it is up to that object to extract
|
||||
those arguments from the tuple, check their types, and raise appropriate
|
||||
exceptions. There are numerous other tedious details that need to be
|
||||
managed; too many to mention here. The Boost Python Library is designed to
|
||||
lift most of that burden.<br>
|
||||
<br>
|
||||
|
||||
<p>
|
||||
@@ -56,10 +56,10 @@
|
||||
sublcassing the extension type. Aside from being tedious, it's not really
|
||||
the same as having a true class, because there's no way for the user to
|
||||
override a method of the extension type which is called from the
|
||||
extension module. Py_cpp solves this problem by taking advantage of <a
|
||||
extension module. Boost.Python solves this problem by taking advantage of <a
|
||||
href="http://www.python.org/doc/essays/metaclasses/">Python's metaclass
|
||||
feature</a> to provide objects which look, walk, and hiss almost exactly
|
||||
like regular Python classes. Py_cpp classes are actually cleaner than
|
||||
like regular Python classes. Boost.Python classes are actually cleaner than
|
||||
Python classes in some subtle ways; a more detailed discussion will
|
||||
follow (someday).</p>
|
||||
<p>Next: <a href="comparisons.html">Comparisons with Other Systems</a> Up: <a
|
||||
|
||||
174
doc/index.html
174
doc/index.html
@@ -2,28 +2,24 @@
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
|
||||
<title>
|
||||
py_cpp Python/C++ binding documentation
|
||||
The Boost Python Library (Boost.Python)
|
||||
</title>
|
||||
<h1>
|
||||
<img src="../../../c++boost.gif" alt="c++boost.gif (8819 bytes)" width="277"
|
||||
align="center" height="86"> py_cpp<a href="#naming_contest">*</a>
|
||||
align="center" height="86"><br>The Boost Python Library (Boost.Python)
|
||||
</h1>
|
||||
|
||||
<p>
|
||||
The source code for py_cpp, including a MSVC demo project is available <a
|
||||
href="py_cpp_20001106.zip">here</a>.
|
||||
|
||||
<h2>Synopsis</h2>
|
||||
<p>
|
||||
py_cpp is a system for quickly and easily interfacing C++ code with <a
|
||||
href="http:www.python.org">Python</a> such that the Python interface is
|
||||
Use the Boost Python Library to quickly and easily export a C++ library to <a
|
||||
href="http://www.python.org">Python</a> such that the Python interface is
|
||||
very similar to the C++ interface. It is designed to be minimally
|
||||
intrusive on your C++ design. In most cases, you should not have to alter
|
||||
your C++ classes in any way in order to use them with py_cpp. The system
|
||||
<em>should</em> simply “reflect” your C++ classes and functions into
|
||||
Python. The major features of py_cpp include support for:
|
||||
your C++ classes in any way in order to use them with Boost.Python. The system
|
||||
<em>should</em> simply ``reflect'' your C++ classes and functions into
|
||||
Python. The major features of Boost.Python include support for:
|
||||
<ul>
|
||||
<li><a href="inheritance.hml">Subclassing extension types in Python</a>
|
||||
<li><a href="inheritance.html">Subclassing extension types in Python</a>
|
||||
<li><a href="overriding.html">Overriding virtual functions in Python</a>
|
||||
<li><a href="overloading.html">[Member] function Overloading</a>
|
||||
<li><a href="special.html#numeric_auto">Automatic wrapping of numeric operators</a>
|
||||
@@ -32,9 +28,27 @@ among others.
|
||||
|
||||
|
||||
<h2>Supported Platforms</h2>
|
||||
<p>py_cpp has been tested in the following configurations:
|
||||
<p>Boost.Python is known to have been tested in the following configurations:
|
||||
|
||||
<ul>
|
||||
<li>Against Python 2.0 using the following compiler/library combinations:
|
||||
<ul>
|
||||
<li><a
|
||||
href="http://msdn.microsoft.com/vstudio/sp/vs6sp4/dnldoverview.asp">MSVC++6sp4</a>
|
||||
with the native library.
|
||||
|
||||
<li>An upcoming release of <a
|
||||
href="http://www.metrowerks.com/products/windows/">Metrowerks
|
||||
CodeWarrior Pro6 for Windows</a> with the native library (the first
|
||||
release has a bug that's fatal to Boost.Python)
|
||||
|
||||
<li><a
|
||||
href="http://developer.intel.com/software/products/compilers/c50/">Intel
|
||||
C++ 5.0</a>. Compilation succeeds, but tests <font
|
||||
color="#FF0000"><b>FAILED at runtime</b></font> due to a bug in its
|
||||
exception-handling implementation.
|
||||
</ul>
|
||||
|
||||
<li>Against Python 1.5.2 using the following compiler/library:
|
||||
|
||||
<ul>
|
||||
@@ -56,29 +70,17 @@ among others.
|
||||
href="mailto:rwgk@cci.lbl.gov">Ralf W. Grosse-Kunstleve</a>]
|
||||
|
||||
<li>An upcoming release of <a href="http://www.metrowerks.com/products/windows/">Metrowerks CodeWarrior
|
||||
Pro6 for Windows</a> (the first release has a bug that's fatal to py_cpp)
|
||||
Pro6 for Windows</a> (the first release has a bug that's fatal to Boost.Python)
|
||||
</ul>
|
||||
<br>
|
||||
<li>Against Python 2.0 using the following compiler/library combinations:
|
||||
<ul>
|
||||
<li><a
|
||||
href="http://msdn.microsoft.com/vstudio/sp/vs6sp4/dnldoverview.asp">MSVC++6sp4</a> [by
|
||||
<a href="mailto:aleaxit@yahoo.com">Alex Martelli</a>]
|
||||
</ul>
|
||||
</ul>
|
||||
|
||||
<p>Py_cpp requires the <a href="http://www.boost.org">boost</a> libraries, and is
|
||||
has been accepted for inclusion into the boost libraries pending “boostification“
|
||||
(completion of the documentation, change in some naming conventions and
|
||||
resolution of some namespace issues).
|
||||
|
||||
<h2>Credits</h2>
|
||||
<ul>
|
||||
<li><a href="mailto:abrahams@mediaone.net">David Abrahams</a> originated
|
||||
and wrote py_cpp.
|
||||
<li><a href="../../../people/dave_abrahams.htm">David Abrahams</a> originated
|
||||
and wrote most of the library, and continues to coordinate development.
|
||||
|
||||
<li><a href="mailto:koethe@informatik.uni-hamburg.de">Ullrich Koethe</a>
|
||||
had independently developed a similar system. When he discovered py_cpp,
|
||||
had independently developed a similar system. When he discovered Boost.Python,
|
||||
he generously contributed countless hours of coding and much insight into
|
||||
improving it. He is responsible for an early version of the support for <a
|
||||
href="overloading.html">function overloading</a> and wrote the support for
|
||||
@@ -87,16 +89,22 @@ among others.
|
||||
Python and C++, and has designed an extremely easy-to-use way of
|
||||
exposing <a href="special.html#numeric">numeric operators</a>, including
|
||||
a way to avoid explicit coercion by means of overloading.
|
||||
|
||||
<li><a href="http://cci.lbl.gov/staff/ralf_grosse-kunstleve.html">Ralf W.
|
||||
Grosse-Kunstleve</a> contributed <a href="pickle.html">pickle support</a>
|
||||
and numerous other small improvements. He's working on a way to allow
|
||||
types exported by multiple modules to interact.
|
||||
|
||||
<li>The members of the boost mailing list and the Python community supplied
|
||||
invaluable early feedback. In particular, Ron Clarke, Mark Evans, Anton
|
||||
Gluck, Ralf W. Grosse-Kunstleve, Prabhu Ramachandran, and Barry Scott took
|
||||
the brave step of trying to use py_cpp while it was still in early stages
|
||||
of development.
|
||||
<li>The members of the boost mailing list and the Python community
|
||||
supplied invaluable early feedback. In particular, Ron Clarke, Mark Evans,
|
||||
Anton Gluck, Chuck Ingold, Prabhu Ramachandran, and Barry Scott took the
|
||||
brave step of trying to use Boost.Python while it was still in early
|
||||
stages of development.
|
||||
|
||||
<li>The development of py_cpp wouldn't have been
|
||||
possible without the generous support of <a href="http://www.dragonsys.com/">Dragon Systems/Lernout and
|
||||
Hauspie, Inc</a> who supported its development as an open-source project.
|
||||
<li>The development of Boost.Python wouldn't have been possible without
|
||||
the generous support of <a href="http://www.dragonsys.com/">Dragon
|
||||
Systems/Lernout and Hauspie, Inc</a> who supported its development as an
|
||||
open-source project.
|
||||
</ul>
|
||||
|
||||
<h2>Table of Contents</h2>
|
||||
@@ -105,10 +113,12 @@ among others.
|
||||
<li><a href="extending.html">A Brief Introduction to writing Python
|
||||
extension modules</a>
|
||||
|
||||
<li><a href="comparisons.html">Comparisons between py_cpp and other
|
||||
<li><a href="comparisons.html">Comparisons between Boost.Python and other
|
||||
systems for extending Python</a>
|
||||
|
||||
<li><a href="example1.html">A Simple Example Using py_cpp</a>
|
||||
<li><a href="example1.html">A Simple Example</a>
|
||||
|
||||
<li><a href="exporting_classes.html">Exporting Classes</a>
|
||||
|
||||
<li><a href="overriding.html">Overridable Virtual Functions</a>
|
||||
|
||||
@@ -120,92 +130,36 @@ among others.
|
||||
|
||||
<li><a href="under-the-hood.html">A Peek Under the Hood</a>
|
||||
|
||||
<li><a href="building.html">Building a Module with Py_cpp</a>
|
||||
<li><a href="building.html">Building an Extension Module</a>
|
||||
|
||||
<li>Advanced Topics
|
||||
<li><a href="pickle.html">Pickle Support</a>
|
||||
|
||||
<ol>
|
||||
<li>class_builder<>
|
||||
<li><a href="enums.html">Wrapping Enums</a>
|
||||
|
||||
<li><a href="enums.html">enums</a>
|
||||
<li><a href="pointers.html">Pointers and Smart Pointers</a>
|
||||
|
||||
<li>References
|
||||
|
||||
<li><a href="pointers.html">Pointers and Smart Pointers</a>
|
||||
|
||||
<li>Built-in Python Types
|
||||
|
||||
<li>Other Extension Types
|
||||
|
||||
<li>Templates
|
||||
</ol>
|
||||
<li><a href="data_structures.txt">Internal Data Structures</a>
|
||||
|
||||
</ol>
|
||||
|
||||
<p>
|
||||
More sophisticated examples are given in
|
||||
<code>extclass_demo.cpp</code>, <code> extclass_demo.h</code>, and <code>
|
||||
test_extclass.py</code> in the <a href="py_cpp.tgz">source code
|
||||
archive</a>. There's much more here, and much more documentation to
|
||||
come...
|
||||
Documentation is a major ongoing project; assistance is greatly
|
||||
appreciated! In the meantime, useful examples of every Boost.Python feature should
|
||||
be evident in the regression test files <code>test/comprehensive.[<a
|
||||
href="../test/comprehensive.py">py</a>/<a
|
||||
href="../test/comprehensive.hpp">hpp</a>/<a
|
||||
href="../test/comprehensive.cpp">cpp</a>]</code>
|
||||
|
||||
<p>
|
||||
Questions should be directed to <a href=
|
||||
"http://www.egroups.com/list/boost">the boost mailing list</a>.
|
||||
|
||||
<h2>Naming Contest</h2>
|
||||
|
||||
<p>
|
||||
Yes, I know py_cpp is a lousy name. Problem is, the best names my puny
|
||||
imagination can muster (IDLE and GRAIL) are taken, so I'm holding a
|
||||
naming contest. First prize? You get to pick the name<0.2wink> and
|
||||
you will be credited in the documentation. Names that have been suggested
|
||||
so far include:
|
||||
<ul>
|
||||
<li>
|
||||
Py++
|
||||
<li>
|
||||
Python++
|
||||
<li>
|
||||
Coil
|
||||
<li>
|
||||
SnakeSkin
|
||||
<li>
|
||||
CCCP - <b>C</b>onvert <b>C</b>++ <b>
|
||||
C</b>lasses to <b>P</b>ython
|
||||
<li>
|
||||
C<sup>3</sup>PO - <b>C</b>onvert <b>C</b>++
|
||||
<b>C</b>lasses to <b>P</b>ython <b>
|
||||
O</b>bjects
|
||||
<li>
|
||||
PALIN - <b>P</b>ython <b>
|
||||
A</b>ugmented-<b>L</b>anguage <b>
|
||||
IN</b>tegration
|
||||
<li>
|
||||
CLEESE - <b>C</b>++ <b>L</b>anguage <b>E</b>xtension <b>E</b>nvironment
|
||||
<b>S</b>upremely <b>E</b>asy
|
||||
<li>
|
||||
JONES - <b>J</b>ust <b>O</b>bscenely <b>N</b>eat <b>E</b>xtension
|
||||
<b>S</b>ystem
|
||||
<li>
|
||||
C-thru
|
||||
<li>
|
||||
SeamlessC
|
||||
<li>
|
||||
BorderCrossing
|
||||
<li>
|
||||
Perseus (because he solved a hairy problem involving snakes by using
|
||||
reflection and was invisible most of the time).
|
||||
</ul>
|
||||
Please <a href="http://www.egroups.com/list/boost">post</a> or send <a
|
||||
href="http:mailto:abrahams@mediaone.net">me</a> your suggestions!<br>
|
||||
<br>
|
||||
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
© Copyright David Abrahams 2001. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as is” without
|
||||
notice appears in all copies. This document is provided ``as is'' without
|
||||
express or implied warranty, and with no claim as to its suitability for
|
||||
any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2001
|
||||
|
||||
|
||||
@@ -12,11 +12,11 @@
|
||||
<h2>Inheritance in Python</h2>
|
||||
|
||||
<p>
|
||||
Py_cpp extension classes support single and multiple-inheritance in
|
||||
Python, just like regular Python classes. You can mix built-in Python
|
||||
classes with py_cpp extension classes in a derived class' tuple of
|
||||
bases. Whenever a py_cpp extension class is among the bases for a new
|
||||
class in Python, the result is an extension class:
|
||||
Boost.Python extension classes support single and multiple-inheritance in
|
||||
Python, just like regular Python classes. You can arbitrarily mix
|
||||
built-in Python classes with extension classes in a derived class'
|
||||
tuple of bases. Whenever a Boost.Python extension class is among the bases for a
|
||||
new class in Python, the result is an extension class:
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> class MyPythonClass:
|
||||
@@ -37,7 +37,7 @@
|
||||
|
||||
<h2><a name="implicit_conversion">Reflecting C++ Inheritance Relationships</a></h2>
|
||||
<p>
|
||||
Py_cpp also allows us to represent C++ inheritance relationships so that
|
||||
Boost.Python also allows us to represent C++ inheritance relationships so that
|
||||
wrapped derived classes may be passed where values, pointers, or
|
||||
references to a base class are expected as arguments. The
|
||||
<code>declare_base</code> member function of
|
||||
@@ -71,22 +71,22 @@ int get_derived_x(const Derived& d) {
|
||||
return d.x;
|
||||
}
|
||||
<hr>
|
||||
#include <boost/python/class_builder.hpp>
|
||||
extern "C"
|
||||
#ifdef _WIN32
|
||||
__declspec(dllexport)
|
||||
#endif
|
||||
void initmy_module()
|
||||
#include <boost/python/class_builder.hpp>
|
||||
|
||||
// namespace alias for code brevity
|
||||
namespace python = boost::python;
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(my_module)
|
||||
{
|
||||
try
|
||||
{
|
||||
boost::python::module_builder my_module("my_module");
|
||||
python::module_builder my_module("my_module");
|
||||
|
||||
boost::python::class_builder<Base> base_class(my_module, "Base");
|
||||
base_class.def(boost::python::constructor<void>());
|
||||
python::class_builder<Base> base_class(my_module, "Base");
|
||||
base_class.def(python::constructor<void>());
|
||||
|
||||
boost::python::class_builder<Derived> derived_class(my_module, "Derived");
|
||||
derived_class.def(boost::python::constructor<void>());
|
||||
python::class_builder<Derived> derived_class(my_module, "Derived");
|
||||
derived_class.def(python::constructor<void>());
|
||||
<b>// Establish the inheritance relationship between Base and Derived
|
||||
derived_class.declare_base(base_class);</b>
|
||||
|
||||
@@ -96,7 +96,7 @@ void initmy_module()
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
boost::python::handle_exception(); // Deal with the exception for Python
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
</pre>
|
||||
@@ -111,11 +111,19 @@ void initmy_module()
|
||||
>>> derived = Derived()
|
||||
>>> get_name(base)
|
||||
'Base'
|
||||
</pre><i>objects of wrapped class Derived may be passed where Base is expected</i><pre>
|
||||
</pre>
|
||||
</blockquote>
|
||||
<i>objects of wrapped class Derived may be passed where Base is expected</i>
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> get_name(derived)
|
||||
'Derived'
|
||||
</pre><i>objects of wrapped class Derived can be passed where Derived is
|
||||
expected but where type information has been lost.</i><pre>
|
||||
</pre>
|
||||
</blockquote>
|
||||
<i>objects of wrapped class Derived can be passed where Derived is
|
||||
expected but where type information has been lost.</i>
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> get_derived_x(derived_as_base())
|
||||
-1
|
||||
</pre>
|
||||
@@ -135,12 +143,12 @@ struct Base2 {};
|
||||
struct Derived2 { int f(); };
|
||||
<hr>
|
||||
...
|
||||
boost::python::class_builder<Base> base2_class(my_module, "Base2");
|
||||
base2_class.def(boost::python::constructor<void>());
|
||||
python::class_builder<Base> base2_class(my_module, "Base2");
|
||||
base2_class.def(python::constructor<void>());
|
||||
|
||||
boost::python::class_builder<Derived2> derived2_class(my_module, "Derived2");
|
||||
derived2_class.def(boost::python::constructor<void>());
|
||||
derived_class.declare_base(base_class, <b>boost::python::without_downcast</b>);
|
||||
python::class_builder<Derived2> derived2_class(my_module, "Derived2");
|
||||
derived2_class.def(python::constructor<void>());
|
||||
derived_class.declare_base(base_class, <b>python::without_downcast</b>);
|
||||
</pre>
|
||||
</blockquote>
|
||||
|
||||
@@ -150,8 +158,8 @@ struct Derived2 { int f(); };
|
||||
references, or values.
|
||||
|
||||
<p>
|
||||
Next: <a href="special.html">Special Method and Operator Support</a>
|
||||
Previous: <a href="overloading.html">Function Overloading</a>
|
||||
Next: <a href="special.html">Special Method Names</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
|
||||
@@ -29,7 +29,7 @@ private:
|
||||
};
|
||||
...
|
||||
|
||||
void initoverload_demo()
|
||||
BOOST_PYTHON_MODULE_INIT(overload_demo)
|
||||
{
|
||||
try
|
||||
{
|
||||
@@ -113,18 +113,17 @@ namespace scope as Python member functions.
|
||||
|
||||
<h2>Overload Resolution</h2>
|
||||
<p>
|
||||
The function overload resolution mechanism in py_cpp works as
|
||||
follows:
|
||||
The function overload resolution mechanism works as follows:
|
||||
|
||||
<ul>
|
||||
|
||||
<li>Attribute lookup for extension classes proceeds in <a
|
||||
href="http://www.pythonlabs.com/pub/www.python.org/doc/current/tut/node11.html#SECTION0011510000000000000000">the
|
||||
href="http://www.python.org/doc/current/tut/node11.html#SECTION0011510000000000000000">the
|
||||
usual Python way</a> using a depth-first, left-to-right search. When a
|
||||
class is found which has a matching attribute, only functions overloaded
|
||||
in the context of that class are candidates for overload resolution. In
|
||||
this sense, overload resolution mirrors the C++ mechanism, where a name
|
||||
in a derived class “hides” all functions with the same name from a base
|
||||
in a derived class ``hides'' all functions with the same name from a base
|
||||
class.
|
||||
<p>
|
||||
|
||||
@@ -133,24 +132,24 @@ namespace scope as Python member functions.
|
||||
<code>def()</code>ed. The first function whose signature can be made to
|
||||
match each argument passed is the one which is ultimately called.
|
||||
This means in particular that you cannot overload the same function on
|
||||
both “<code>int</code>” and “<code>float</code>” because Python
|
||||
both ``<code>int</code>'' and ``<code>float</code>'' because Python
|
||||
automatically converts either of the two types into the other one.
|
||||
If the “<code>float</code>” overload is found first, it is used
|
||||
also used for arguments of type “<code>int</code>” as well, and the
|
||||
“<code>int</code>” version of the function is never invoked.
|
||||
If the ``<code>float</code>'' overload is found first, it is used
|
||||
also used for arguments of type ``<code>int</code>'' as well, and the
|
||||
``<code>int</code>'' version of the function is never invoked.
|
||||
</ul>
|
||||
|
||||
<p>
|
||||
Prev: <a href="overriding.html">Overridable Virtual Functions</a>
|
||||
Next: <a href="inheritance.html">Special Method Names</a>
|
||||
Next: <a href="inheritance.html">Inheritance</a>
|
||||
Previous: <a href="overriding.html">Overridable Virtual Functions</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
© Copyright David Abrahams 2001. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided “as
|
||||
is” without express or implied warranty, and with no claim as to
|
||||
notice appears in all copies. This document is provided ``as
|
||||
is'' without express or implied warranty, and with no claim as to
|
||||
its suitability for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2001
|
||||
</div>
|
||||
|
||||
|
||||
@@ -9,7 +9,7 @@
|
||||
<h1>Overridable Virtual Functions</h1>
|
||||
|
||||
<p>
|
||||
In the <a href="example1.html">previous example</a> we exposed a simple
|
||||
In the <a href="exporting_classes.html">previous example</a> we exposed a simple
|
||||
C++ class in Python and showed that we could write a subclass. We even
|
||||
redefined one of the functions in our derived class. Now we will learn
|
||||
how to make the function behave virtually <em>when called from C++</em>.
|
||||
@@ -17,16 +17,17 @@
|
||||
|
||||
<h2><a name="overriding_example">Example</a></h2>
|
||||
|
||||
<p>In this example, it is assumed that <code>world::get()</code> is a virtual
|
||||
<p>In this example, it is assumed that <code>hello::greet()</code> is a virtual
|
||||
member function:
|
||||
|
||||
<blockquote><pre>
|
||||
class world
|
||||
class hello
|
||||
{
|
||||
public:
|
||||
world(int);
|
||||
virtual ~world();
|
||||
<b>virtual</b> std::string get() const { return "hi, world"; }
|
||||
hello(const std::string& country) { this->country = country; }
|
||||
<b>virtual</b> std::string greet() const { return "Hello from " + country; }
|
||||
virtual ~hello(); // Good practice
|
||||
...
|
||||
};
|
||||
</pre></blockquote>
|
||||
|
||||
@@ -37,21 +38,28 @@ class world
|
||||
|
||||
<ol>
|
||||
|
||||
<li><a name="derived_1">A</a> <code>PyObject*</code> data member that holds a
|
||||
reference to the corresponding Python object.
|
||||
<li><a name="derived_1">A</a> <code>PyObject*</code> data member (usually
|
||||
called <tt>self</tt>) that holds a pointer to the Python object corresponding
|
||||
to our C++ <tt>hello</tt> instance.
|
||||
|
||||
<li><a name="derived_2">A</a> constructor for each exposed constructor of the
|
||||
base class which stores an additional initial <code>PyObject*</code> argument
|
||||
in the data member described above.
|
||||
<li><a name="derived_2">For</a> each exposed constructor of the
|
||||
base class <tt>T</tt>, a constructor which takes the same parameters preceded by an initial
|
||||
<code>PyObject*</code> argument. The initial argument should be stored in the <tt>self</tt> data
|
||||
member described above.
|
||||
|
||||
<li>If the class being wrapped is ever returned <i>by
|
||||
value</i> from a wrapped function, be sure you do the same for the
|
||||
<tt>T</tt>'s copy constructor: you'll need a constructor taking arguments
|
||||
<tt>(PyObject*, const T&)</tt>.
|
||||
|
||||
<li><a name="derived_3">An</a> implementation of each virtual function you may
|
||||
wish to override in Python which uses
|
||||
<code>boost::python::callback<<i>return-type</i>>::call_method()</code> to call
|
||||
<tt>callback<</tt><i>return-type</i><tt>>::call_method(self, "</tt><i>name</i><tt>", </tt><i>args...</i><tt>)</tt> to call
|
||||
the Python override.
|
||||
|
||||
<li><a name="derived_4">For</a> each non-pure virtual function meant to be
|
||||
overridable from Python, a static member function (or a free function) taking
|
||||
a reference or pointer to the base type as the first parameter and which
|
||||
a reference or pointer to the <tt>T</tt> as the first parameter and which
|
||||
forwards any additional parameters neccessary to the <i>default</i>
|
||||
implementation of the virtual function. See also <a href="#private">this
|
||||
note</a> if the base class virtual function is private.
|
||||
@@ -59,52 +67,60 @@ class world
|
||||
</ol>
|
||||
|
||||
<blockquote><pre>
|
||||
struct world_callback : world
|
||||
struct hello_callback : hello
|
||||
{
|
||||
world_callback(PyObject* self, int x) // <a href="#derived_2">2</a>
|
||||
: world(x),
|
||||
m_self(self) {}
|
||||
// hello constructor storing initial self_ parameter
|
||||
hello_callback(PyObject* self_, const std::string& x) // <a href="#derived_2">2</a>
|
||||
: hello(x), self(self_) {}
|
||||
|
||||
std::string get() const // <a href="#derived_3">3</a>
|
||||
{ return boost::python::callback<std::string>::call_method(m_self, "get"); }
|
||||
// In case hello is returned by-value from a wrapped function
|
||||
hello_callback(PyObject* self_, const hello& x) // <a href="#derived_3">3</a>
|
||||
: hello(x), self(self_) {}
|
||||
|
||||
static std::string <a name= "default_implementation">default_get</a>(const hello::world& self) const // <a href="#derived_4">4</a>
|
||||
{ return self.world::get(); }
|
||||
// Override greet to call back into Python
|
||||
std::string greet() const // <a href="#derived_4">4</a>
|
||||
{ return boost::python::callback<std::string>::call_method(m_self, "greet"); }
|
||||
|
||||
// Supplies the default implementation of greet
|
||||
static std::string <a name= "default_implementation">default_greet</a>(const hello& self) const // <a href="#derived_5">5</a>
|
||||
{ return self.hello::greet(); }
|
||||
private:
|
||||
PyObject* m_self; // <a href="#derived_1">1</a>
|
||||
};
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
Finally, we add <code>world_callback</code> to the <code>
|
||||
class_builder<></code> declaration in our module initialization
|
||||
function, and when we define the function, we must tell py_cpp about the default
|
||||
Finally, we add <tt>hello_callback</tt> to the <tt>
|
||||
class_builder<></tt> declaration in our module initialization
|
||||
function, and when we define the function, we must tell Boost.Python about the default
|
||||
implementation:
|
||||
|
||||
<blockquote><pre>
|
||||
// Create the <a name=
|
||||
"world_class">Python type object</a> for our extension class
|
||||
boost::python::class_builder<hello::world<strong>,world_callback></strong> world_class(hello, "world");
|
||||
"hello_class">Python type object</a> for our extension class
|
||||
boost::python::class_builder<hello<strong>,hello_callback></strong> hello_class(hello, "hello");
|
||||
// Add a virtual member function
|
||||
world_class.def(&world::get, "get", &<b>world_callback::default_get</b>);
|
||||
hello_class.def(&hello::greet, "greet", &<b>hello_callback::default_greet</b>);
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
Now our subclass of <code>hello.world</code> behaves as expected:
|
||||
Now our Python subclass of <tt>hello</tt> behaves as expected:
|
||||
|
||||
<blockquote><pre>
|
||||
>>> class my_subclass(hello.world):
|
||||
... def get(self):
|
||||
... return 'hello, world'
|
||||
>>> class wordy(hello):
|
||||
... def greet(self):
|
||||
... return hello.greet(self) + ', where the weather is fine'
|
||||
...
|
||||
>>> hello.length(my_subclass())
|
||||
12
|
||||
>>> hi2 = wordy('Florida')
|
||||
>>> hi2.greet()
|
||||
'Hello from Florida, where the weather is fine'
|
||||
>>> invite(hi2)
|
||||
'Hello from Florida, where the weather is fine! Please come soon!'
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
<a name="why_derived">*</a>You may ask, "Why do we need this derived
|
||||
class? This could have been designed so that everything gets done right
|
||||
inside of <code>hello::world</code>." One of the goals of py_cpp is to be
|
||||
inside of <tt>hello</tt>." One of the goals of Boost.Python is to be
|
||||
minimally intrusive on an existing C++ design. In principle, it should be
|
||||
possible to expose the interface for a 3rd party library without changing
|
||||
it. To unintrusively hook into the virtual functions so that a Python
|
||||
@@ -117,10 +133,10 @@ world_class.def(&world::get, "get", &<b>world_callback::default_get</b>)
|
||||
deal with than a virtual function with a default implementation. First of
|
||||
all, you obviously don't need to <a href="#default_implementation"> supply
|
||||
a default implementation</a>. Secondly, you don't need to call
|
||||
<code>def()</code> on the <code>extension_class<></code> instance
|
||||
<tt>def()</tt> on the <tt>extension_class<></tt> instance
|
||||
for the virtual function. In fact, you wouldn't <em>want</em> to: if the
|
||||
corresponding attribute on the Python class stays undefined, you'll get an
|
||||
<code>AttributeError</code> in Python when you try to call the function,
|
||||
<tt>AttributeError</tt> in Python when you try to call the function,
|
||||
indicating that it should have been implemented. For example:
|
||||
<blockquote>
|
||||
<pre>
|
||||
@@ -132,11 +148,7 @@ struct baz_callback {
|
||||
int pure(int x) { boost::python::callback<int>::call_method(m_self, "pure", x); }
|
||||
};
|
||||
|
||||
extern "C"
|
||||
#ifdef _WIN32
|
||||
__declspec(dllexport)
|
||||
#endif
|
||||
initfoobar()
|
||||
BOOST_PYTHON_MODULE_INIT(foobar)
|
||||
{
|
||||
try
|
||||
{
|
||||
@@ -181,15 +193,15 @@ break the <a
|
||||
href="http://cs.calvin.edu/c++/C++Standard-Nov97/basic.html#basic.def.odr">ODR</a>).
|
||||
|
||||
<p>
|
||||
Prev: <a href="example1.html">A Simple Example Using py_cpp</a> Next: <a
|
||||
href="overloading.html">Function Overloading</a> Up: <a href=
|
||||
"index.html">Top</a>
|
||||
Next: <a href="overloading.html">Function Overloading</a>
|
||||
Previous: <a href="exporting_classes.html">Exporting Classes</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
© Copyright David Abrahams 2001. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided "as is" without
|
||||
express or implied warranty, and with no claim as to its suitability for
|
||||
any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
Updated: Mar 6, 2001
|
||||
|
||||
|
||||
223
doc/pickle.html
Normal file
223
doc/pickle.html
Normal file
@@ -0,0 +1,223 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>Boost.Python Pickle Support</title>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<img src="../../../c++boost.gif"
|
||||
alt="c++boost.gif (8819 bytes)"
|
||||
align="center"
|
||||
width="277" height="86">
|
||||
|
||||
</body>
|
||||
<hr>
|
||||
<h1>Boost.Python Pickle Support</h1>
|
||||
|
||||
Pickle is a Python module for object serialization, also known
|
||||
as persistence, marshalling, or flattening.
|
||||
|
||||
<p>
|
||||
It is often necessary to save and restore the contents of an object to
|
||||
a file. One approach to this problem is to write a pair of functions
|
||||
that read and write data from a file in a special format. A powerful
|
||||
alternative approach is to use Python's pickle module. Exploiting
|
||||
Python's ability for introspection, the pickle module recursively
|
||||
converts nearly arbitrary Python objects into a stream of bytes that
|
||||
can be written to a file.
|
||||
|
||||
<p>
|
||||
The Boost Python Library supports the pickle module by emulating the
|
||||
interface implemented by Jim Fulton's ExtensionClass module that is
|
||||
included in the ZOPE distribution
|
||||
(<a href="http://www.zope.org/">http://www.zope.org/</a>).
|
||||
This interface is similar to that for regular Python classes as
|
||||
described in detail in the Python Library Reference for pickle:
|
||||
|
||||
<blockquote>
|
||||
<a href="http://www.python.org/doc/current/lib/module-pickle.html"
|
||||
>http://www.python.org/doc/current/lib/module-pickle.html</a>
|
||||
</blockquote>
|
||||
|
||||
<hr>
|
||||
<h1>The Boost.Python Pickle Interface</h1>
|
||||
|
||||
At the user level, the Boost.Python pickle interface involves three special
|
||||
methods:
|
||||
|
||||
<dl>
|
||||
<dt>
|
||||
<strong>__getinitargs__</strong>
|
||||
<dd>
|
||||
When an instance of a Boost.Python extension class is pickled, the pickler
|
||||
tests if the instance has a __getinitargs__ method. This method must
|
||||
return a Python tuple. When the instance is restored by the
|
||||
unpickler, the contents of this tuple are used as the arguments for
|
||||
the class constructor.
|
||||
|
||||
<p>
|
||||
If __getinitargs__ is not defined, the class constructor will be
|
||||
called without arguments.
|
||||
|
||||
<p>
|
||||
<dt>
|
||||
<strong>__getstate__</strong>
|
||||
|
||||
<dd>
|
||||
When an instance of a Boost.Python extension class is pickled, the pickler
|
||||
tests if the instance has a __getstate__ method. This method should
|
||||
return a Python object representing the state of the instance.
|
||||
|
||||
<p>
|
||||
If __getstate__ is not defined, the instance's __dict__ is pickled
|
||||
(if it is not empty).
|
||||
|
||||
<p>
|
||||
<dt>
|
||||
<strong>__setstate__</strong>
|
||||
|
||||
<dd>
|
||||
When an instance of a Boost.Python extension class is restored by the
|
||||
unpickler, it is first constructed using the result of
|
||||
__getinitargs__ as arguments (see above). Subsequently the unpickler
|
||||
tests if the new instance has a __setstate__ method. If so, this
|
||||
method is called with the result of __getstate__ (a Python object) as
|
||||
the argument.
|
||||
|
||||
<p>
|
||||
If __setstate__ is not defined, the result of __getstate__ must be
|
||||
a Python dictionary. The items of this dictionary are added to
|
||||
the instance's __dict__.
|
||||
</dl>
|
||||
|
||||
If both __getstate__ and __setstate__ are defined, the Python object
|
||||
returned by __getstate__ need not be a dictionary. The __getstate__ and
|
||||
__setstate__ methods can do what they want.
|
||||
|
||||
<hr>
|
||||
<h1>Pitfalls and Safety Guards</h1>
|
||||
|
||||
In Boost.Python extension modules with many extension classes, providing
|
||||
complete pickle support for all classes would be a significant
|
||||
overhead. In general complete pickle support should only be implemented
|
||||
for extension classes that will eventually be pickled. However, the
|
||||
author of a Boost.Python extension module might not anticipate correctly which
|
||||
classes need support for pickle. Unfortunately, the pickle protocol
|
||||
described above has two important pitfalls that the end user of a Boost.Python
|
||||
extension module might not be aware of:
|
||||
|
||||
<dl>
|
||||
<dt>
|
||||
<strong>Pitfall 1:</strong>
|
||||
Both __getinitargs__ and __getstate__ are not defined.
|
||||
|
||||
<dd>
|
||||
In this situation the unpickler calls the class constructor without
|
||||
arguments and then adds the __dict__ that was pickled by default to
|
||||
that of the new instance.
|
||||
|
||||
<p>
|
||||
However, most C++ classes wrapped with Boost.Python will have member data
|
||||
that are not restored correctly by this procedure. To alert the user
|
||||
to this problem, a safety guard is provided. If both __getinitargs__
|
||||
and __getstate__ are not defined, Boost.Python tests if the class has an
|
||||
attribute __dict_defines_state__. An exception is raised if this
|
||||
attribute is not defined:
|
||||
|
||||
<pre>
|
||||
RuntimeError: Incomplete pickle support (__dict_defines_state__ not set)
|
||||
</pre>
|
||||
|
||||
In the rare cases where this is not the desired behavior, the safety
|
||||
guard can deliberately be disabled. The corresponding C++ code for
|
||||
this is, e.g.:
|
||||
|
||||
<pre>
|
||||
class_builder<your_class> py_your_class(your_module, "your_class");
|
||||
py_your_class.dict_defines_state();
|
||||
</pre>
|
||||
|
||||
It is also possible to override the safety guard at the Python level.
|
||||
E.g.:
|
||||
|
||||
<pre>
|
||||
import your_bpl_module
|
||||
class your_class(your_bpl_module.your_class):
|
||||
__dict_defines_state__ = 1
|
||||
</pre>
|
||||
|
||||
<p>
|
||||
<dt>
|
||||
<strong>Pitfall 2:</strong>
|
||||
__getstate__ is defined and the instance's __dict__ is not empty.
|
||||
|
||||
<dd>
|
||||
The author of a Boost.Python extension class might provide a __getstate__
|
||||
method without considering the possibilities that:
|
||||
|
||||
<p>
|
||||
<ul>
|
||||
<li>
|
||||
his class is used as a base class. Most likely the __dict__ of
|
||||
instances of the derived class needs to be pickled in order to
|
||||
restore the instances correctly.
|
||||
|
||||
<p>
|
||||
<li>
|
||||
the user adds items to the instance's __dict__ directly. Again,
|
||||
the __dict__ of the instance then needs to be pickled.
|
||||
</ul>
|
||||
<p>
|
||||
|
||||
To alert the user to this highly unobvious problem, a safety guard is
|
||||
provided. If __getstate__ is defined and the instance's __dict__ is
|
||||
not empty, Boost.Python tests if the class has an attribute
|
||||
__getstate_manages_dict__. An exception is raised if this attribute
|
||||
is not defined:
|
||||
|
||||
<pre>
|
||||
RuntimeError: Incomplete pickle support (__getstate_manages_dict__ not set)
|
||||
</pre>
|
||||
|
||||
To resolve this problem, it should first be established that the
|
||||
__getstate__ and __setstate__ methods manage the instances's __dict__
|
||||
correctly. Note that this can be done both at the C++ and the Python
|
||||
level. Finally, the safety guard should intentionally be overridden.
|
||||
E.g. in C++:
|
||||
|
||||
<pre>
|
||||
class_builder<your_class> py_your_class(your_module, "your_class");
|
||||
py_your_class.getstate_manages_dict();
|
||||
</pre>
|
||||
|
||||
In Python:
|
||||
|
||||
<pre>
|
||||
import your_bpl_module
|
||||
class your_class(your_bpl_module.your_class):
|
||||
__getstate_manages_dict__ = 1
|
||||
def __getstate__(self):
|
||||
# your code here
|
||||
def __setstate__(self, state):
|
||||
# your code here
|
||||
</pre>
|
||||
</dl>
|
||||
|
||||
<hr>
|
||||
<h1>Practical Advice</h1>
|
||||
|
||||
<ul>
|
||||
<li>
|
||||
Avoid using __getstate__ if the instance can also be reconstructed
|
||||
by way of __getinitargs__. This automatically avoids Pitfall 2.
|
||||
|
||||
<p>
|
||||
<li>
|
||||
If __getstate__ is required, include the instance's __dict__ in the
|
||||
Python object that is returned.
|
||||
</ul>
|
||||
|
||||
<hr>
|
||||
<address>
|
||||
Author: Ralf W. Grosse-Kunstleve, March 2001
|
||||
</address>
|
||||
</html>
|
||||
@@ -13,7 +13,7 @@
|
||||
|
||||
<p>
|
||||
In general, raw pointers passed to or returned from functions are problematic
|
||||
for py_cpp because pointers have too many potential meanings. Is it an iterator?
|
||||
for Boost.Python because pointers have too many potential meanings. Is it an iterator?
|
||||
A pointer to a single element? An array? When used as a return value, is the
|
||||
caller expected to manage (delete) the pointed-to object or is the pointer
|
||||
really just a reference? If the latter, what happens to Python references to the
|
||||
@@ -34,12 +34,10 @@ converted from/to Python strings.
|
||||
<h3>Can you avoid the problem?</h3>
|
||||
|
||||
<p>My first piece of advice to anyone with a case not covered above is
|
||||
“find a way to avoid the problem.” For example, if you have just one
|
||||
or two functions returning a pointer to a single (not an array of) <code>const
|
||||
T*</code> for some wrapped <code>T</code>, you may be able to write a “thin
|
||||
converting wrapper” over those two functions as follows (Since py_cpp
|
||||
converts <code>const T&</code> values <code>to_python</code> by copying the T
|
||||
into a new extension instance, Foo must have a public copy constructor):
|
||||
``find a way to avoid the problem.'' For example, if you have just one
|
||||
or two functions that return a pointer to an individual <code>const
|
||||
T</code>, and <code>T</code> is a wrapped class, you may be able to write a ``thin
|
||||
converting wrapper'' over those two functions as follows:
|
||||
|
||||
<blockquote><pre>
|
||||
const Foo* f(); // original function
|
||||
@@ -47,6 +45,10 @@ const Foo& f_wrapper() { return *f(); }
|
||||
...
|
||||
my_module.def(f_wrapper, "f");
|
||||
</pre></blockquote>
|
||||
<p>
|
||||
Foo must have a public copy constructor for this technique to work, since Boost.Python
|
||||
converts <code>const T&</code> values <code>to_python</code> by copying the <code>T</code>
|
||||
value into a new extension instance.
|
||||
|
||||
<h2>Dealing with the problem</h2>
|
||||
|
||||
@@ -83,12 +85,12 @@ code before the last Python reference to it disappears:
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE // this is a gcc 2.95.2 bug workaround
|
||||
PyObject* to_python(Foo* p)
|
||||
{
|
||||
return boost::python::PyExtensionClassConverters<Foo>::ptr_to_python(p);
|
||||
return boost::python::python_extension_class_converters<Foo>::ptr_to_python(p);
|
||||
}
|
||||
|
||||
PyObject* to_python(const Foo* p)
|
||||
{
|
||||
return to_python(const_cast<Foo*>(p));
|
||||
return to_python(const_cast<Foo*>(p));
|
||||
}
|
||||
BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
</pre></blockquote>
|
||||
@@ -118,7 +120,7 @@ return value. You can handle this case by returning a Python tuple:
|
||||
typedef unsigned ErrorCode;
|
||||
const char* f(int* in_out_x); // original function
|
||||
...
|
||||
#include <boost/python/objects.hpp>
|
||||
#include <boost/python/objects.hpp>
|
||||
const boost::python::tuple f_wrapper(int in_x) {
|
||||
const char* s = f(in_x);
|
||||
return boost::python::tuple(s, in_x);
|
||||
@@ -131,8 +133,9 @@ my_module.def(f_wrapper, "f");
|
||||
>>> str,out_x = f(3)
|
||||
</pre></blockquote>
|
||||
|
||||
|
||||
|
||||
<p>
|
||||
Previous: <a href="enums.html">Enums</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
sell and distribute this document is granted provided this copyright
|
||||
|
||||
149
doc/special.html
149
doc/special.html
@@ -1,11 +1,10 @@
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
|
||||
"http://www.w3.org/TR/REC-html40/strict.dtd">
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||||
<title>
|
||||
Special Method and Operator Support
|
||||
</title>
|
||||
<div>
|
||||
<h1>
|
||||
<img width="277" height="86" id="_x0000_i1025" align="center" src=
|
||||
<img width="277" height="86" id="_x0000_i1025" align="middle" src=
|
||||
"../../../c++boost.gif" alt="c++boost.gif (8819 bytes)">Special Method and
|
||||
Operator Support
|
||||
</h1>
|
||||
@@ -13,8 +12,8 @@
|
||||
Overview
|
||||
</h2>
|
||||
<p>
|
||||
Py_cpp supports all of the standard <a href=
|
||||
"http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/specialnames.html">
|
||||
Boost.Python supports all of the standard <a href=
|
||||
"http://www.python.org/doc/current/ref/specialnames.html">
|
||||
special method names</a> supported by real Python class instances <em>
|
||||
except</em> <code>__complex__</code> (more on the reasons <a href=
|
||||
"#reasons">below</a>). In addition, it can quickly and easily expose
|
||||
@@ -34,19 +33,24 @@
|
||||
Python provides a number of special operators for basic customization of a
|
||||
class. Only a brief description is provided below; more complete
|
||||
documentation can be found <a
|
||||
href="http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/customization.html">here</a>.
|
||||
href="http://www.python.org/doc/current/ref/customization.html">here</a>.
|
||||
|
||||
<dl>
|
||||
<dt>
|
||||
<b><tt class='method'>__init__</tt></b>(<i>self</i>)
|
||||
<dd>
|
||||
Initialize the class instance. For extension classes not subclassed in
|
||||
Python, this is provided by the
|
||||
<code>boost::python::constructor<...>()</code> construct and should <i>not</i> be explicitly <code>def</code>ed.
|
||||
Python, <code> __init__</code> is defined by
|
||||
|
||||
<pre> my_class.def(boost::python::constructor<...>())</pre>
|
||||
|
||||
(see section <a href="example1.html">"A Simple Example Using Boost.Python"</a>).<p>
|
||||
<dt>
|
||||
<b><tt class='method'>__del__</tt></b>(<i>self</i>)
|
||||
<dd>
|
||||
Called when the extension instance is about to be destroyed.
|
||||
Called when the extension instance is about to be destroyed. For extension classes
|
||||
not subclassed in Python, <code> __del__</code> is always defined automatically by
|
||||
means of the class' destructor.
|
||||
<dt>
|
||||
<b><tt class='method'>__repr__</tt></b>(<i>self</i>)
|
||||
<dd>
|
||||
@@ -78,7 +82,7 @@
|
||||
<dt>
|
||||
<b><tt class='method'>__call__</tt></b> (<var>self</var><big>[</big><var>, args...</var><big>]</big>)
|
||||
<dd>
|
||||
Called when the instance is “called” as a function; if this method
|
||||
Called when the instance is ``called'' as a function; if this method
|
||||
is defined, <code><var>x</var>(arg1, arg2, ...)</code> is a shorthand for
|
||||
<code><var>x</var>.__call__(arg1, arg2, ...)</code>.
|
||||
</dl>
|
||||
@@ -100,7 +104,7 @@ std::string to_string(Foo const& f)
|
||||
boost::python::class_builder<Foo> foo_class(my_module, "Foo");
|
||||
foo_class.def(&to_string, "__str__");
|
||||
</pre></blockquote>
|
||||
Note that py_cpp also supports <em>automatic wrapping</em> of
|
||||
Note that Boost.Python also supports <em>automatic wrapping</em> of
|
||||
<code>__str__</code> and <code>__cmp__</code>. This is explained in the <a
|
||||
href="#numeric">next section</a> and the <a href="#numeric_table">Table of
|
||||
Automatically Wrapped Methods</a>.
|
||||
@@ -110,10 +114,10 @@ foo_class.def(&to_string, "__str__");
|
||||
<p>
|
||||
Numeric operators can be exposed manually, by <code>def</code>ing C++
|
||||
[member] functions that support the standard Python <a
|
||||
href="http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/numeric-types.html">numeric
|
||||
protocols</a>. This is the basic same technique used to expose
|
||||
href="http://www.python.org/doc/current/ref/numeric-types.html">numeric
|
||||
protocols</a>. This is the same basic technique used to expose
|
||||
<code>to_string()</code> as <code>__str__()</code> above, and is <a
|
||||
href="#numeric_manual">covered in detail below</a>. Py_cpp also supports
|
||||
href="#numeric_manual">covered in detail below</a>. Boost.Python also supports
|
||||
<i>automatic wrapping</i> of numeric operators whenever they have already
|
||||
been defined in C++.
|
||||
|
||||
@@ -121,7 +125,7 @@ foo_class.def(&to_string, "__str__");
|
||||
|
||||
<p>
|
||||
Supose we wanted to expose a C++ class
|
||||
<code>BigNum</code> which supports addition, so that we can write (in C++):
|
||||
<code>BigNum</code> which supports addition. That is, in C++ we can write:
|
||||
<blockquote><pre>
|
||||
BigNum a, b, c;
|
||||
...
|
||||
@@ -143,7 +147,7 @@ bignum_class.def(boost::python::operators<boost::python::op_add>());
|
||||
|
||||
Since BigNum also supports subtraction, multiplication, and division, we
|
||||
want to export those also. This can be done in a single command by
|
||||
“or”ing the operator identifiers together (a complete list of these
|
||||
``or''ing the operator identifiers together (a complete list of these
|
||||
identifiers and the corresponding operators can be found in the <a href=
|
||||
"#numeric_table">Table of Automatically Wrapped Methods</a>):
|
||||
<blockquote><pre>
|
||||
@@ -170,7 +174,7 @@ a = i + b;
|
||||
bignum_class.def(boost::python::operators<boost::python::op_add>(), boost::python::right_operand<int>());
|
||||
bignum_class.def(boost::python::operators<boost::python::op_add>(), boost::python::left_operand<int>());
|
||||
</pre></blockquote>
|
||||
Py_cpp uses overloading to register several variants of the same
|
||||
Boost.Python uses overloading to register several variants of the same
|
||||
operation (more on this in the context of <a href="#coercion">
|
||||
coercion</a>). Again, several operators can be exported at once:
|
||||
<blockquote><pre>
|
||||
@@ -181,7 +185,7 @@ bignum_class.def(boost::python::operators<(boost::python::op_sub | boost::pyt
|
||||
</pre></blockquote>
|
||||
The type of the operand not mentioned is taken from the class being wrapped. In
|
||||
our example, the class object is <code>bignum_class</code>, and thus the
|
||||
other operand's type is “<code>BigNum const&</code>”. You can override
|
||||
other operand's type is ``<code>BigNum const&</code>''. You can override
|
||||
this default by explicitly specifying a type in the <code>
|
||||
operators</code> template:
|
||||
<blockquote><pre>
|
||||
@@ -189,15 +193,18 @@ bignum_class.def(boost::python::operators<boost::python::op_add, BigNum>()
|
||||
</pre></blockquote>
|
||||
<p>
|
||||
Note that automatic wrapping uses the <em>expression</em>
|
||||
“<code>left + right</code>” and can be used uniformly
|
||||
``<code>left + right</code>'' and can be used uniformly
|
||||
regardless of whether the C++ operators are supplied as free functions
|
||||
<blockquote><pre>
|
||||
|
||||
<blockquote><pre>
|
||||
BigNum operator+(BigNum, BigNum)
|
||||
</pre></blockquote>
|
||||
or as member
|
||||
functions <blockquote><pre>
|
||||
|
||||
or as member functions
|
||||
|
||||
<blockquote><pre>
|
||||
BigNum::operator+(BigNum).
|
||||
</blockquote></pre>
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
For the Python built-in functions <code>pow()</code> and
|
||||
@@ -218,8 +225,7 @@ namespace boost { namespace python {
|
||||
<p>
|
||||
In some cases, automatic wrapping of operators may be impossible or
|
||||
undesirable. Suppose, for example, that the modulo operation for BigNums
|
||||
is defined by a set of functions <code>mod()</code> (for automatic
|
||||
wrapping, we would need <code>operator%()</code>):
|
||||
is defined by a set of functions called <code>mod()</code>:
|
||||
|
||||
<blockquote><pre>
|
||||
BigNum mod(BigNum const& left, BigNum const& right);
|
||||
@@ -228,8 +234,9 @@ BigNum mod(int left, BigNum const& right);
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
In order to create the Python operator "__mod__" from these functions, we
|
||||
have to wrap them manually:
|
||||
For automatic wrapping of the modulo function, <code>operator%()</code> would be needed.
|
||||
Therefore, the <code>mod()</code>-functions must be wrapped manually. That is, we have
|
||||
to export them explicitly with the Python special name "__mod__":
|
||||
|
||||
<blockquote><pre>
|
||||
bignum_class.def((BigNum (*)(BigNum const&, BigNum const&))&mod, "__mod__");
|
||||
@@ -237,8 +244,8 @@ bignum_class.def((BigNum (*)(BigNum const&, int))&mod, "__mod__");
|
||||
</pre></blockquote>
|
||||
|
||||
<p>
|
||||
The third form (with <code>int</code> as left operand) cannot be wrapped
|
||||
this way. We must first create a function <code>rmod()</code> with the
|
||||
The third form of <code>mod()</code> (with <code>int</code> as left operand) cannot
|
||||
be wrapped directly. We must first create a function <code>rmod()</code> with the
|
||||
operands reversed:
|
||||
|
||||
<blockquote><pre>
|
||||
@@ -248,7 +255,7 @@ BigNum rmod(BigNum const& right, int left)
|
||||
}
|
||||
</pre></blockquote>
|
||||
|
||||
This function must be wrapped under the name "__rmod__":
|
||||
This function must be wrapped under the name "__rmod__" (standing for "reverse mod"):
|
||||
|
||||
<blockquote><pre>
|
||||
bignum_class.def(&rmod, "__rmod__");
|
||||
@@ -261,9 +268,9 @@ bignum_class.def(&rmod, "__rmod__");
|
||||
<p>
|
||||
Automatic and manual wrapping can be mixed arbitrarily. Note that you
|
||||
cannot overload the same operator for a given extension class on both
|
||||
“<code>int</code>” and “<code>float</code>”, because Python implicitly
|
||||
``<code>int</code>'' and ``<code>float</code>'', because Python implicitly
|
||||
converts these types into each other. Thus, the overloaded variant
|
||||
found first (be it “<code>int</code>“ or “<code>float</code>”) will be
|
||||
found first (be it ``<code>int</code>`` or ``<code>float</code>'') will be
|
||||
used for either of the two types.
|
||||
|
||||
<h3><a name="coercion">Coercion</a></h3>
|
||||
@@ -271,18 +278,18 @@ bignum_class.def(&rmod, "__rmod__");
|
||||
|
||||
Plain Python can only execute operators with identical types on the left
|
||||
and right hand side. If it encounters an expression where the types of
|
||||
the left and right operand differ, it tries to coerce these type to a
|
||||
the left and right operand differ, it tries to coerce these types to a
|
||||
common type before invoking the actual operator. Implementing good
|
||||
coercion functions can be difficult if many type combinations must be
|
||||
supported.
|
||||
<p>
|
||||
Py_cpp solves this problem the same way that C++ does: with <em><a
|
||||
Boost.Python solves this problem the same way that C++ does: with <em><a
|
||||
href="overloading.html">overloading</a></em>. This technique drastically
|
||||
simplifies the code neccessary to support operators: you just register
|
||||
operators for all desired type combinations, and py_cpp automatically
|
||||
operators for all desired type combinations, and Boost.Python automatically
|
||||
ensures that the correct function is called in each case; there is no
|
||||
need for user-defined coercion functions. To enable operator
|
||||
overloading, py_cpp provides a standard coercion which is <em>implicitly
|
||||
overloading, Boost.Python provides a standard coercion which is <em>implicitly
|
||||
registered</em> whenever automatic operator wrapping is used.
|
||||
<p>
|
||||
If you wrap all operator functions manually, but still want to use
|
||||
@@ -295,7 +302,7 @@ bignum_class.def_standard_coerce();
|
||||
</pre></blockquote>
|
||||
|
||||
If you encounter a situation where you absolutely need a customized
|
||||
coercion, you can overload the "__coerce__" operator itself. The signature
|
||||
coercion, you can still define the "__coerce__" operator manually. The signature
|
||||
of a coercion function should look like one of the following (the first is
|
||||
the safest):
|
||||
|
||||
@@ -310,13 +317,22 @@ PyObject* custom_coerce(PyObject* left, PyObject* right);
|
||||
converted to the same type. Such a function is wrapped as usual:
|
||||
|
||||
<blockquote><pre>
|
||||
// this must be called before any use of automatic operator
|
||||
// wrapping or a call to some_class.def_standard_coerce()
|
||||
some_class.def(&custom_coerce, "__coerce__");
|
||||
</pre></blockquote>
|
||||
|
||||
Note that the later use of automatic operator wrapping on a
|
||||
<code>class_builder</code> or a call to
|
||||
“<code>some_class.def_standard_coerce()</code>” will cause any
|
||||
custom coercion function to be replaced by the standard one.
|
||||
Note that the standard coercion (defined by use of automatic
|
||||
operator wrapping on a <code>class_builder</code> or a call to
|
||||
<code>class_builder::def_standard_coerce()</code>) will never be applied if
|
||||
a custom coercion function has been registered. Therefore, in
|
||||
your coercion function you should call
|
||||
|
||||
<blockquote><pre>
|
||||
boost::python::standard_coerce(left, right);
|
||||
</pre></blockquote>
|
||||
|
||||
for all cases that you don't want to handle yourself.
|
||||
|
||||
<h3><a name="ternary_pow">The Ternary <code>pow()</code> Operator</a></h3>
|
||||
|
||||
@@ -330,7 +346,7 @@ some_class.def(&custom_coerce, "__coerce__");
|
||||
this is done as usual:
|
||||
|
||||
<blockquote><pre>
|
||||
BigNum power(BigNum const& first, BigNum const& second, BigNum const& module);
|
||||
BigNum power(BigNum const& first, BigNum const& second, BigNum const& modulus);
|
||||
typedef BigNum (ternary_function1)(const BigNum&, const BigNum&, const BigNum&);
|
||||
...
|
||||
bignum_class.def((ternary_function1)&power, "__pow__");
|
||||
@@ -353,19 +369,19 @@ bignum_class.def((ternary_function2)&power, "__pow__");
|
||||
</pre></blockquote>
|
||||
|
||||
In the second variant, however, <code>BigNum</code> appears only as second
|
||||
argument, and in the last one it is the third argument. These functions
|
||||
must be presented to py_cpp such that that the <code>BigNum</code>
|
||||
argument, and in the last one it's the third argument. These functions
|
||||
must be presented to Boost.Python such that that the <code>BigNum</code>
|
||||
argument appears in first position:
|
||||
|
||||
<blockquote><pre>
|
||||
BigNum rpower(BigNum const& second, int first, int modulus)
|
||||
{
|
||||
return power(first, second, third);
|
||||
return power(first, second, modulus);
|
||||
}
|
||||
|
||||
BigNum rrpower(BigNum const& third, int first, int second)
|
||||
BigNum rrpower(BigNum const& modulus, int first, int second)
|
||||
{
|
||||
return power(first, second, third);
|
||||
return power(first, second, modulus);
|
||||
}
|
||||
</pre></blockquote>
|
||||
|
||||
@@ -381,8 +397,8 @@ Note that "__rrpow__" is an extension not present in plain Python.
|
||||
|
||||
<h2><a name="numeric_table">Table of Automatically Wrapped Methods</a></h2>
|
||||
<p>
|
||||
Py_cpp can automatically wrap the following <a href=
|
||||
"http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/specialnames.html">
|
||||
Boost.Python can automatically wrap the following <a href=
|
||||
"http://www.python.org/doc/current/ref/specialnames.html">
|
||||
special methods</a>:
|
||||
|
||||
<p>
|
||||
@@ -630,15 +646,16 @@ Note that "__rrpow__" is an extension not present in plain Python.
|
||||
to Python's iteration and access protocols. These protocols differ
|
||||
considerably from the ones found in C++. For example, Python's typical
|
||||
iteration idiom looks like
|
||||
|
||||
<blockquote><pre>
|
||||
for i in S:
|
||||
</blockquote></pre>
|
||||
</pre></blockquote>
|
||||
|
||||
while in C++ one writes
|
||||
while in C++ one writes
|
||||
|
||||
<blockquote><pre>
|
||||
for (iterator i = S.begin(), end = S.end(); i != end)
|
||||
</blockquote></pre>
|
||||
for (iterator i = S.begin(), end = S.end(); i != end; ++i)
|
||||
</pre></blockquote>
|
||||
|
||||
<p>One could try to wrap C++ iterators in order to carry the C++ idiom into
|
||||
Python. However, this does not work very well because
|
||||
@@ -655,12 +672,12 @@ for (iterator i = S.begin(), end = S.end(); i != end)
|
||||
|
||||
<p>
|
||||
It is a better idea to support the standard <a
|
||||
href="http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/sequence-types.html">Python
|
||||
href="http://www.python.org/doc/current/ref/sequence-types.html">Python
|
||||
sequence and mapping protocols</a> for your wrapped containers. These
|
||||
operators have to be wrapped manually because there are no corresponding
|
||||
C++ operators that could be used for automatic wrapping. The Python
|
||||
documentation lists the relevant <a href=
|
||||
"http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/sequence-types.html">
|
||||
"http://www.python.org/doc/current/ref/sequence-types.html">
|
||||
container operators</a>. In particular, expose __getitem__, __setitem__
|
||||
and remember to raise the appropriate Python exceptions
|
||||
(<code>PyExc_IndexError</code> for sequences,
|
||||
@@ -689,7 +706,7 @@ void throw_key_error_if_end(
|
||||
|
||||
// Define some simple wrapper functions which match the Python protocol
|
||||
// for __getitem__, __setitem__, and __delitem__. Just as in Python, a
|
||||
// free function with a “self” first parameter makes a fine class method.
|
||||
// free function with a ``self'' first parameter makes a fine class method.
|
||||
|
||||
const std::string& get_item(const StringMap& self, std::size_t key)
|
||||
{
|
||||
@@ -755,13 +772,13 @@ KeyError: 2
|
||||
<h2><a name="getter_setter">Customized Attribute Access</a></h2>
|
||||
|
||||
<p>
|
||||
Just like built-in Python classes, py_cpp extension classes support <a
|
||||
href="http://www.pythonlabs.com/pub/www.python.org/doc/current/ref/attribute-access.html">special
|
||||
Just like built-in Python classes, Boost.Python extension classes support <a
|
||||
href="http://www.python.org/doc/current/ref/attribute-access.html">special
|
||||
the usual attribute access methods</a> <code>__getattr__</code>,
|
||||
<code>__setattr__</code>, and <code>__delattr__</code>.
|
||||
Because writing these functions can
|
||||
be tedious in the common case where the attributes being accessed are
|
||||
known statically, py_cpp checks the special names
|
||||
known statically, Boost.Python checks the special names
|
||||
|
||||
<ul>
|
||||
<li>
|
||||
@@ -774,10 +791,10 @@ KeyError: 2
|
||||
|
||||
to provide functional access to the attribute <em><name></em>. This
|
||||
facility can be used from C++ or entirely from Python. For example, the
|
||||
following shows how we can implement a “computed attribute” in Python:
|
||||
following shows how we can implement a ``computed attribute'' in Python:
|
||||
<blockquote>
|
||||
<pre>
|
||||
>>> class Range(AnyPy_cppExtensionClass):
|
||||
>>> class Range(AnyBoost.PythonExtensionClass):
|
||||
... def __init__(self, start, end):
|
||||
... self.start = start
|
||||
... self.end = end
|
||||
@@ -793,7 +810,7 @@ KeyError: 2
|
||||
Direct Access to Data Members
|
||||
</h4>
|
||||
<p>
|
||||
Py_cpp uses the special <code>
|
||||
Boost.Python uses the special <code>
|
||||
__xxxattr__<em><name></em>__</code> functionality described above
|
||||
to allow direct access to data members through the following special
|
||||
functions on <code>class_builder<></code> and <code>
|
||||
@@ -873,14 +890,14 @@ if (PyInstance_Check(r)) { ...
|
||||
</pre>
|
||||
</blockquote>
|
||||
<p>
|
||||
Previous: <a href="inheritance.html">Inheritance</a> Next: <a href=
|
||||
"under-the-hood.html">A Peek Under the Hood</a> Up: <a href=
|
||||
"index.html">Top</a>
|
||||
Next: <a href="under-the-hood.html">A Peek Under the Hood</a>
|
||||
Previous: <a href="inheritance.html">Inheritance</a>
|
||||
Up: <a href= "index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams and Ullrich Köthe 2000.
|
||||
Permission to copy, use, modify, sell and distribute this document is
|
||||
granted provided this copyright notice appears in all copies. This
|
||||
document is provided “as is” without express or implied
|
||||
document is provided ``as is'' without express or implied
|
||||
warranty, and with no claim as to its suitability for any purpose.
|
||||
<p>
|
||||
Updated: Nov 26, 2000
|
||||
|
||||
@@ -22,7 +22,7 @@
|
||||
"example1.html#add_world_class">add it to the module</a> it goes into the
|
||||
module's dictionary to be looked up under the name "world".
|
||||
<p>
|
||||
Py_cpp uses C++'s template argument deduction mechanism to determine the
|
||||
Boost.Python uses C++'s template argument deduction mechanism to determine the
|
||||
types of arguments to functions (except constructors, for which we must
|
||||
<a href="example1.html#Constructor_example">provide an argument list</a>
|
||||
because they can't be named in C++). Then, it calls the appropriate
|
||||
@@ -48,8 +48,8 @@
|
||||
the top of your module's init function, then <code>def</code> the member
|
||||
functions later to avoid problems with inter-class dependencies.
|
||||
<p>
|
||||
Previous: <a href="overriding.html">Function Overloading</a>
|
||||
Next: <a href="building.html">Building a Module with Py_cpp</a>
|
||||
Next: <a href="building.html">Building a Module with Boost.Python</a>
|
||||
Previous: <a href="special.html">Special Method and Operator Support</a>
|
||||
Up: <a href="index.html">Top</a>
|
||||
<p>
|
||||
© Copyright David Abrahams 2000. Permission to copy, use, modify,
|
||||
|
||||
6
example/README
Normal file
6
example/README
Normal file
@@ -0,0 +1,6 @@
|
||||
To get started with the Boost Python Library, use the examples
|
||||
getting_started?.cpp and abstract.cpp.
|
||||
|
||||
The files example1.cpp and rwgk1.cpp are obsolete. They are only
|
||||
included because the makefiles in the build directory still refer to
|
||||
them. This will be fixed later.
|
||||
34
example/abstract.cpp
Normal file
34
example/abstract.cpp
Normal file
@@ -0,0 +1,34 @@
|
||||
// Example by Ullrich Koethe
|
||||
#include "boost/python/class_builder.hpp"
|
||||
#include <string>
|
||||
|
||||
struct Abstract
|
||||
{
|
||||
virtual std::string test() = 0;
|
||||
};
|
||||
|
||||
struct Abstract_callback: Abstract
|
||||
{
|
||||
Abstract_callback(PyObject * self)
|
||||
: m_self(self)
|
||||
{}
|
||||
|
||||
std::string test()
|
||||
{
|
||||
return boost::python::callback<std::string>::call_method(m_self, "test");
|
||||
}
|
||||
|
||||
PyObject * m_self;
|
||||
};
|
||||
|
||||
extern "C"
|
||||
DL_EXPORT(void)
|
||||
initabstract()
|
||||
{
|
||||
boost::python::module_builder a("abstract");
|
||||
|
||||
boost::python::class_builder<Abstract, Abstract_callback>
|
||||
a_class(a, "Abstract");
|
||||
a_class.def(boost::python::constructor<>()); // wrap a constructor
|
||||
a_class.def(&Abstract::test, "test");
|
||||
}
|
||||
30
example/getting_started1.cpp
Normal file
30
example/getting_started1.cpp
Normal file
@@ -0,0 +1,30 @@
|
||||
#include <string>
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A couple of simple C++ functions that we want to expose to Python.
|
||||
std::string greet() { return "hello, world"; }
|
||||
int square(int number) { return number * number; }
|
||||
}
|
||||
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
// Python requires an exported function called init<module-name> in every
|
||||
// extension module. This is where we build the module contents.
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started1)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started1");
|
||||
|
||||
// Add regular functions to the module.
|
||||
this_module.def(greet, "greet");
|
||||
this_module.def(square, "square");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
50
example/getting_started2.cpp
Normal file
50
example/getting_started2.cpp
Normal file
@@ -0,0 +1,50 @@
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A friendly class.
|
||||
class hello
|
||||
{
|
||||
public:
|
||||
hello(const std::string& country) { this->country = country; }
|
||||
std::string greet() const { return "Hello from " + country; }
|
||||
private:
|
||||
std::string country;
|
||||
};
|
||||
|
||||
// A function taking a hello object as an argument.
|
||||
std::string invite(const hello& w) {
|
||||
return w.greet() + "! Please come soon!";
|
||||
}
|
||||
}
|
||||
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started2)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started2");
|
||||
|
||||
// Create the Python type object for our extension class.
|
||||
python::class_builder<hello> hello_class(this_module, "hello");
|
||||
|
||||
// Add the __init__ function.
|
||||
hello_class.def(python::constructor<std::string>());
|
||||
// Add a regular member function.
|
||||
hello_class.def(&hello::greet, "greet");
|
||||
|
||||
// Add invite() as a regular function to the module.
|
||||
this_module.def(invite, "invite");
|
||||
|
||||
// Even better, invite() can also be made a member of hello_class!!!
|
||||
hello_class.def(invite, "invite");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
120
example/getting_started3.cpp
Normal file
120
example/getting_started3.cpp
Normal file
@@ -0,0 +1,120 @@
|
||||
/*
|
||||
This example shows how to make an Extension Class "pickleable".
|
||||
|
||||
Python's pickle module implements a basic but powerful algorithm
|
||||
for "pickling" (a.k.a. serializing, marshalling or flattening)
|
||||
nearly arbitrary Python objects.
|
||||
|
||||
The user can influence how an Extension Class instance is pickled
|
||||
by defining three special methods: __getinitargs__(),
|
||||
__getstate__(), and __setstate(). This interface is similar to
|
||||
that for regular Python classes as described in detail in the
|
||||
Python Library Reference for pickle:
|
||||
|
||||
http://www.python.org/doc/current/lib/module-pickle.html
|
||||
|
||||
When an Extension Class instance is pickled, __getinitargs__() is
|
||||
called, if implemented. This method should return a tuple
|
||||
containing the arguments to be passed to the class constructor when
|
||||
the object is restored.
|
||||
|
||||
If there is no __getstate__() method, the instance's __dict__ is
|
||||
pickled if it is not empty. If __getstate__() is defined, it should
|
||||
return an object representing the state of the instance.
|
||||
|
||||
If there is no __setstate__() method, __getstate__() must return a
|
||||
dictionary. When the instance is restored, the items in this dictionary
|
||||
are added to the instance's __dict__.
|
||||
|
||||
If the Extension Class defines __setstate__(), the pickle loader
|
||||
calls it with the result of __getstate__() as arguments. In this
|
||||
case, the state object need not be a dictionary. The
|
||||
__getstate__() and __setstate__() methods can do what they want.
|
||||
|
||||
If both __getinitargs__() and __getstate__() are defined, the
|
||||
instance is restored by first calling the constructor with
|
||||
the result of __getinitargs__() as argument. After the instance
|
||||
is reconstructed, the __dict__ is updated or __setstate__() is
|
||||
called if implemented.
|
||||
|
||||
The mechanism described here is an exact replication of that one
|
||||
implemented by Jim Fulton's ExtensionClass (included in Zope 2.2.2).
|
||||
*/
|
||||
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A friendly class.
|
||||
class world
|
||||
{
|
||||
private:
|
||||
std::string country;
|
||||
int secret_number;
|
||||
public:
|
||||
world(const std::string& country) : secret_number(0) {
|
||||
this->country = country;
|
||||
}
|
||||
std::string greet() const { return "Hello from " + country + "!"; }
|
||||
std::string get_country() const { return country; }
|
||||
void set_secret_number(int number) { secret_number = number; }
|
||||
int get_secret_number() const { return secret_number; }
|
||||
};
|
||||
|
||||
// Support for pickle.
|
||||
python::tuple world_getinitargs(const world& w) {
|
||||
python::tuple result(1);
|
||||
result.set_item(0, w.get_country());
|
||||
return result;
|
||||
}
|
||||
|
||||
python::tuple world_getstate(const world& w) {
|
||||
python::tuple result(1);
|
||||
result.set_item(0, w.get_secret_number());
|
||||
return result;
|
||||
}
|
||||
|
||||
void world_setstate(world& w, python::tuple state) {
|
||||
if (state.size() != 1) {
|
||||
PyErr_SetString(PyExc_ValueError,
|
||||
"Unexpected argument in call to __setstate__.");
|
||||
throw python::error_already_set();
|
||||
}
|
||||
int number = BOOST_PYTHON_CONVERSION::from_python(state[0].get(),
|
||||
python::type<int>());
|
||||
if (number != 42)
|
||||
w.set_secret_number(number);
|
||||
}
|
||||
}
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started3)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started3");
|
||||
|
||||
// Create the Python type object for our extension class.
|
||||
python::class_builder<world> world_class(this_module, "world");
|
||||
|
||||
// Add the __init__ function.
|
||||
world_class.def(python::constructor<std::string>());
|
||||
// Add a regular member function.
|
||||
world_class.def(&world::greet, "greet");
|
||||
world_class.def(&world::get_secret_number, "get_secret_number");
|
||||
world_class.def(&world::set_secret_number, "set_secret_number");
|
||||
|
||||
// Support for pickle.
|
||||
world_class.def(world_getinitargs, "__getinitargs__");
|
||||
world_class.def(world_getstate, "__getstate__");
|
||||
world_class.def(world_setstate, "__setstate__");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
102
example/getting_started4.cpp
Normal file
102
example/getting_started4.cpp
Normal file
@@ -0,0 +1,102 @@
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A wrapper is used to define additional constructors.
|
||||
//
|
||||
struct vector_double_wrapper: std::vector<double>
|
||||
{
|
||||
// Tell the compiler how to convert a base class object to
|
||||
// this wrapper object.
|
||||
vector_double_wrapper(PyObject*, const std::vector<double>& vd)
|
||||
: std::vector<double>(vd) {}
|
||||
|
||||
vector_double_wrapper(PyObject* self)
|
||||
: std::vector<double>() {}
|
||||
|
||||
vector_double_wrapper(PyObject* self, const int n)
|
||||
: std::vector<double>(n) {}
|
||||
|
||||
vector_double_wrapper(PyObject* self, python::tuple tuple)
|
||||
: std::vector<double>(tuple.size())
|
||||
{
|
||||
std::vector<double>::iterator vd = begin();
|
||||
for (int i = 0; i < tuple.size(); i++)
|
||||
vd[i] = BOOST_PYTHON_CONVERSION::from_python(tuple[i].get(),
|
||||
python::type<double>());
|
||||
}
|
||||
};
|
||||
|
||||
double getitem(const std::vector<double>& vd, const std::size_t key) {
|
||||
return vd[key];
|
||||
}
|
||||
|
||||
void setitem(std::vector<double>& vd, const std::size_t key,
|
||||
const double &d) {
|
||||
std::vector<double>::iterator vditer = vd.begin();
|
||||
vditer[key] = d;
|
||||
}
|
||||
|
||||
void delitem(std::vector<double>& vd, const std::size_t key) {
|
||||
std::vector<double>::iterator vditer = vd.begin();
|
||||
vd.erase(&vditer[key]);
|
||||
}
|
||||
|
||||
// Convert vector_double to a regular Python tuple.
|
||||
//
|
||||
python::tuple as_tuple(const std::vector<double>& vd)
|
||||
{
|
||||
python::tuple t(vd.size());
|
||||
for (int i = 0; i < vd.size(); i++) t.set_item(i,
|
||||
python::ref(BOOST_PYTHON_CONVERSION::to_python(vd[i])));
|
||||
return t;
|
||||
}
|
||||
|
||||
// Function returning a vector_double object to Python.
|
||||
//
|
||||
std::vector<double> foo(const int n)
|
||||
{
|
||||
std::vector<double> vd(n);
|
||||
std::vector<double>::iterator vditer = vd.begin();
|
||||
for (int i = 0; i < n; i++) vditer[i] = double(i);
|
||||
return vd;
|
||||
}
|
||||
|
||||
// Same as foo(), but avoid copying on return.
|
||||
//
|
||||
std::auto_ptr<std::vector<double> > bar(const int n)
|
||||
{
|
||||
std::auto_ptr<std::vector<double> > vdptr(new std::vector<double>(n));
|
||||
std::vector<double>::iterator vditer = vdptr->begin();
|
||||
for (int i = 0; i < n; i++) vditer[i] = double(10 * i);
|
||||
return vdptr;
|
||||
}
|
||||
}
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started4)
|
||||
{
|
||||
try
|
||||
{
|
||||
python::module_builder this_module("getting_started4");
|
||||
|
||||
python::class_builder<std::vector<double>, vector_double_wrapper>
|
||||
vector_double(this_module, "vector_double");
|
||||
|
||||
vector_double.def(python::constructor<>());
|
||||
vector_double.def(python::constructor<const int>());
|
||||
vector_double.def(python::constructor<python::tuple>());
|
||||
vector_double.def(&std::vector<double>::size, "__len__");
|
||||
vector_double.def(getitem, "__getitem__");
|
||||
vector_double.def(setitem, "__setitem__");
|
||||
vector_double.def(delitem, "__delitem__");
|
||||
vector_double.def(as_tuple, "as_tuple");
|
||||
|
||||
this_module.def(foo, "foo");
|
||||
this_module.def(bar, "bar");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
126
example/getting_started5.cpp
Normal file
126
example/getting_started5.cpp
Normal file
@@ -0,0 +1,126 @@
|
||||
/*
|
||||
This example shows how to convert a class from and to native
|
||||
Python objects, such as tuples.
|
||||
|
||||
We do not want to expose the helper class MillerIndex as an
|
||||
Extension Class. However, in order to simplify the wrapper code,
|
||||
we want to define from_python() and to_python() functions for
|
||||
class MillerIndex.
|
||||
|
||||
Consider the alternatives:
|
||||
|
||||
- Expose MillerIndex as an Extension Class.
|
||||
We need a constructor MillerIndex(python::tuple).
|
||||
Python function calls become more complex:
|
||||
foo(MillerIndex((1,2,3)) instead of foo((1,2,3))
|
||||
We need a method such as MillerIndex().as_tuple().
|
||||
|
||||
- Define a wrapper function for each function that we
|
||||
want to expose, e.g.:
|
||||
void add(const IndexingSet& ixset, const python::tuple PyMIx)
|
||||
|
||||
The first alternative introduces a new type that the user has to
|
||||
deal with. Other modules using Miller indices might organize them in
|
||||
different ways, for example to increase runtime efficiency for
|
||||
important procedures. This means, the user has to know how to
|
||||
convert between the different kinds of Miller index representations.
|
||||
This can quickly become a nuisance. Relying on native Python data
|
||||
structures minimizes the number of special types the user has to
|
||||
learn and convert. Of course, this argument is only valid for
|
||||
small and relatively simply classes.
|
||||
|
||||
If there are many member functions with MillerIndex arguments, the
|
||||
second alternative is impractical, and concentrating the conversion
|
||||
mechanism in one central place is essential for code
|
||||
maintainability. An added benefit is that more convenient (smarter)
|
||||
conversion functions can be provided without cluttering the rest of
|
||||
the wrapper code.
|
||||
|
||||
*/
|
||||
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include <boost/python/class_builder.hpp>
|
||||
namespace python = boost::python;
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// The helper class.
|
||||
//
|
||||
class MillerIndex {
|
||||
public:
|
||||
int v[3];
|
||||
};
|
||||
|
||||
// The main class. Imagine that there are MANY member functions
|
||||
// like add() and get().
|
||||
//
|
||||
class IndexingSet {
|
||||
private:
|
||||
std::vector<MillerIndex> VMIx;
|
||||
public:
|
||||
void add(const MillerIndex& MIx) { VMIx.push_back(MIx); }
|
||||
MillerIndex get(const std::size_t i) const { return VMIx[i]; }
|
||||
};
|
||||
}
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
|
||||
// Convert a Python tuple to a MillerIndex object.
|
||||
//
|
||||
MillerIndex from_python(PyObject* p, python::type<const MillerIndex&>)
|
||||
{
|
||||
python::tuple tup
|
||||
= python::tuple(python::ref(p, python::ref::increment_count));
|
||||
if (tup.size() != 3) {
|
||||
PyErr_SetString(PyExc_ValueError,
|
||||
"expecting exactly 3 values in tuple.");
|
||||
throw python::error_already_set();
|
||||
}
|
||||
MillerIndex result;
|
||||
for (int i = 0; i < 3; i++)
|
||||
result.v[i] = from_python(tup[i].get(), python::type<int>());
|
||||
return result;
|
||||
}
|
||||
|
||||
// Similar conversion for MillerIndex objects passed by value.
|
||||
// Not actually used, but included to show the principle.
|
||||
//
|
||||
MillerIndex from_python(PyObject* p, python::type<MillerIndex>)
|
||||
{
|
||||
return from_python(p, python::type<const MillerIndex&>());
|
||||
}
|
||||
|
||||
// Convert a MillerIndex object to a Python tuple.
|
||||
//
|
||||
PyObject* to_python(const MillerIndex& hkl)
|
||||
{
|
||||
python::tuple result(3);
|
||||
for (int i = 0; i < 3; i++)
|
||||
result.set_item(i, python::ref(to_python(hkl.v[i])));
|
||||
return result.reference().release();
|
||||
}
|
||||
|
||||
BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
|
||||
BOOST_PYTHON_MODULE_INIT(getting_started5)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("getting_started5");
|
||||
|
||||
// Create the Python type object for our extension class.
|
||||
python::class_builder<IndexingSet> ixset_class(this_module, "IndexingSet");
|
||||
|
||||
// Add the __init__ function.
|
||||
ixset_class.def(python::constructor<>());
|
||||
// Add the member functions.
|
||||
ixset_class.def(&IndexingSet::add, "add");
|
||||
ixset_class.def(&IndexingSet::get, "get");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
41
example/rwgk1.cpp
Normal file
41
example/rwgk1.cpp
Normal file
@@ -0,0 +1,41 @@
|
||||
#include <string>
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A couple of simple C++ functions that we want to expose to Python.
|
||||
std::string greet() { return "hello, world"; }
|
||||
int square(int number) { return number * number; }
|
||||
}
|
||||
|
||||
#include <boost/python/class_builder.hpp>
|
||||
|
||||
namespace python = boost::python;
|
||||
|
||||
// Python requires an exported function called init<module-name> in every
|
||||
// extension module. This is where we build the module contents.
|
||||
extern "C"
|
||||
#ifdef _WIN32
|
||||
__declspec(dllexport)
|
||||
#endif
|
||||
void initrwgk1()
|
||||
{
|
||||
try
|
||||
{
|
||||
// Create an object representing this extension module.
|
||||
python::module_builder this_module("rwgk1");
|
||||
|
||||
// Add regular functions to the module.
|
||||
this_module.def(greet, "greet");
|
||||
this_module.def(square, "square");
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
python::handle_exception(); // Deal with the exception for Python
|
||||
}
|
||||
}
|
||||
|
||||
// Win32 DLL boilerplate
|
||||
#if defined(_WIN32)
|
||||
#include <windows.h>
|
||||
extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD, LPVOID) { return 1; }
|
||||
#endif // _WIN32
|
||||
23
example/test_abstract.py
Normal file
23
example/test_abstract.py
Normal file
@@ -0,0 +1,23 @@
|
||||
# Example by Ullrich Koethe
|
||||
r'''>>> from abstract import *
|
||||
>>> class A(Abstract):
|
||||
... def __init__(self, text):
|
||||
... Abstract.__init__(self) # call the base class constructor
|
||||
... self.text = text
|
||||
... def test(self): # implement abstract function
|
||||
... return self.text
|
||||
...
|
||||
>>> a = A("Hello")
|
||||
>>> a.test()
|
||||
'Hello'
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_abstract
|
||||
doctest.testmod(test_abstract)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
17
example/test_getting_started1.py
Normal file
17
example/test_getting_started1.py
Normal file
@@ -0,0 +1,17 @@
|
||||
r'''>>> import getting_started1
|
||||
>>> print getting_started1.greet()
|
||||
hello, world
|
||||
>>> number = 11
|
||||
>>> print number, '*', number, '=', getting_started1.square(number)
|
||||
11 * 11 = 121
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_getting_started1
|
||||
doctest.testmod(test_getting_started1)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
29
example/test_getting_started2.py
Normal file
29
example/test_getting_started2.py
Normal file
@@ -0,0 +1,29 @@
|
||||
r'''>>> from getting_started2 import *
|
||||
>>> hi = hello('California')
|
||||
>>> hi.greet()
|
||||
'Hello from California'
|
||||
>>> invite(hi)
|
||||
'Hello from California! Please come soon!'
|
||||
>>> hi.invite()
|
||||
'Hello from California! Please come soon!'
|
||||
|
||||
>>> class wordy(hello):
|
||||
... def greet(self):
|
||||
... return hello.greet(self) + ', where the weather is fine'
|
||||
...
|
||||
>>> hi2 = wordy('Florida')
|
||||
>>> hi2.greet()
|
||||
'Hello from Florida, where the weather is fine'
|
||||
>>> invite(hi2)
|
||||
'Hello from Florida! Please come soon!'
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_getting_started2
|
||||
doctest.testmod(test_getting_started2)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
56
example/test_getting_started3.py
Normal file
56
example/test_getting_started3.py
Normal file
@@ -0,0 +1,56 @@
|
||||
r'''>>> import getting_started3
|
||||
>>> import re
|
||||
>>> import pickle
|
||||
>>> getting_started3.world.__module__
|
||||
'getting_started3'
|
||||
>>> getting_started3.world.__safe_for_unpickling__
|
||||
1
|
||||
>>> getting_started3.world.__reduce__()
|
||||
'world'
|
||||
>>> assert re.match(
|
||||
... "\(<extension class getting_started3.world at [0-9a-fA-FxX]+>, \('Hello',\), \(0,\)\)",
|
||||
... repr(getting_started3.world('Hello').__reduce__()))
|
||||
>>>
|
||||
>>> for number in (24, 42):
|
||||
... wd = getting_started3.world('California')
|
||||
... wd.set_secret_number(number)
|
||||
... pstr = pickle.dumps(wd)
|
||||
... print pstr
|
||||
... wl = pickle.loads(pstr)
|
||||
... print wd.greet(), wd.get_secret_number()
|
||||
... print wl.greet(), wl.get_secret_number()
|
||||
cgetting_started3
|
||||
world
|
||||
p0
|
||||
(S'California'
|
||||
p1
|
||||
tp2
|
||||
R(I24
|
||||
tp3
|
||||
bp4
|
||||
.
|
||||
Hello from California! 24
|
||||
Hello from California! 24
|
||||
cgetting_started3
|
||||
world
|
||||
p0
|
||||
(S'California'
|
||||
p1
|
||||
tp2
|
||||
R(I42
|
||||
tp3
|
||||
bp4
|
||||
.
|
||||
Hello from California! 42
|
||||
Hello from California! 0
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_getting_started3
|
||||
doctest.testmod(test_getting_started3)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
35
example/test_getting_started4.py
Normal file
35
example/test_getting_started4.py
Normal file
@@ -0,0 +1,35 @@
|
||||
r'''>>> import getting_started4
|
||||
>>> v=getting_started4.vector_double()
|
||||
>>> print v.as_tuple()
|
||||
()
|
||||
>>> v=getting_started4.vector_double(5)
|
||||
>>> print v.as_tuple()
|
||||
(0.0, 0.0, 0.0, 0.0, 0.0)
|
||||
>>> print len(v)
|
||||
5
|
||||
>>> v=getting_started4.vector_double((3,4,5))
|
||||
>>> print v.as_tuple()
|
||||
(3.0, 4.0, 5.0)
|
||||
>>> print v[1]
|
||||
4.0
|
||||
>>> v[1] = 40
|
||||
>>> print v.as_tuple()
|
||||
(3.0, 40.0, 5.0)
|
||||
>>> del v[1]
|
||||
>>> print v.as_tuple()
|
||||
(3.0, 5.0)
|
||||
>>> print getting_started4.foo(11).as_tuple()
|
||||
(0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0)
|
||||
>>> print getting_started4.bar(12).as_tuple()
|
||||
(0.0, 10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0, 110.0)
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_getting_started4
|
||||
doctest.testmod(test_getting_started4)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
22
example/test_getting_started5.py
Normal file
22
example/test_getting_started5.py
Normal file
@@ -0,0 +1,22 @@
|
||||
r'''>>> import getting_started5
|
||||
>>> ixset = getting_started5.IndexingSet()
|
||||
>>> ixset.add((1,2,3))
|
||||
>>> ixset.add((4,5,6))
|
||||
>>> ixset.add((7,8,9))
|
||||
>>> print ixset.get(0)
|
||||
(1, 2, 3)
|
||||
>>> print ixset.get(1)
|
||||
(4, 5, 6)
|
||||
>>> print ixset.get(2)
|
||||
(7, 8, 9)
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_getting_started5
|
||||
doctest.testmod(test_getting_started5)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
17
example/test_rwgk1.py
Normal file
17
example/test_rwgk1.py
Normal file
@@ -0,0 +1,17 @@
|
||||
r'''>>> import rwgk1
|
||||
>>> print rwgk1.greet()
|
||||
hello, world
|
||||
>>> number = 11
|
||||
>>> print number, '*', number, '=', rwgk1.square(number)
|
||||
11 * 11 = 121
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_rwgk1
|
||||
doctest.testmod(test_rwgk1)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
@@ -1,3 +1,6 @@
|
||||
// Revision History:
|
||||
// Mar 03 01 added: pickle safety measures (Ralf W. Grosse-Kunstleve)
|
||||
|
||||
#ifndef CLASS_WRAPPER_DWA101000_H_
|
||||
# define CLASS_WRAPPER_DWA101000_H_
|
||||
|
||||
@@ -24,11 +27,18 @@ class class_builder
|
||||
|
||||
~class_builder()
|
||||
{}
|
||||
|
||||
inline void dict_defines_state() {
|
||||
add(ref(BOOST_PYTHON_CONVERSION::to_python(1)), "__dict_defines_state__");
|
||||
}
|
||||
inline void getstate_manages_dict() {
|
||||
add(ref(BOOST_PYTHON_CONVERSION::to_python(1)), "__getstate_manages_dict__");
|
||||
}
|
||||
|
||||
// define constructors
|
||||
template <class signature>
|
||||
void def(const signature& signature)
|
||||
{ m_class->def(signature); }
|
||||
void def(const signature& s)
|
||||
{ m_class->def(s); }
|
||||
|
||||
// export heterogeneous reverse-argument operators
|
||||
// (type of lhs: 'left', of rhs: 'right')
|
||||
|
||||
@@ -5,6 +5,11 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// 04 Mar 01 Fixed std::complex<> stuff to work with MSVC (David Abrahams)
|
||||
// 03 Mar 01 added: converters for [plain] char and std::complex
|
||||
// (Ralf W. Grosse-Kunstleve)
|
||||
|
||||
#ifndef METHOD_DWA122899_H_
|
||||
# define METHOD_DWA122899_H_
|
||||
@@ -17,6 +22,17 @@
|
||||
# include <boost/python/errors.hpp>
|
||||
# include <string>
|
||||
|
||||
# ifdef BOOST_MSVC6_OR_EARLIER
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable:4275) // disable a bogus warning caused by <complex>
|
||||
# endif
|
||||
|
||||
# include <complex>
|
||||
|
||||
# ifdef BOOST_MSVC6_OR_EARLIER
|
||||
# pragma warning(pop)
|
||||
# endif
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE // this is a gcc 2.95.2 bug workaround
|
||||
|
||||
// This can be instantiated on an enum to provide the to_python/from_python
|
||||
@@ -70,6 +86,30 @@ inline void xdecref(T* p)
|
||||
xdecref_impl(reinterpret_cast<PyObject*>(p_base));
|
||||
}
|
||||
|
||||
namespace detail {
|
||||
|
||||
void expect_complex(PyObject*);
|
||||
|
||||
template <class T>
|
||||
std::complex<T> complex_from_python(PyObject* p, boost::python::type<T>)
|
||||
{
|
||||
expect_complex(p);
|
||||
|
||||
return std::complex<T>(
|
||||
static_cast<T>(PyComplex_RealAsDouble(p)),
|
||||
static_cast<T>(PyComplex_ImagAsDouble(p)));
|
||||
}
|
||||
|
||||
template <class T>
|
||||
PyObject* complex_to_python(const std::complex<T>& sc) {
|
||||
Py_complex pcc;
|
||||
pcc.real = sc.real();
|
||||
pcc.imag = sc.imag();
|
||||
return PyComplex_FromCComplex(pcc);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}} // namespace boost::python
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
@@ -100,6 +140,10 @@ PyObject* to_python(unsigned short);
|
||||
unsigned short from_python(PyObject*, boost::python::type<unsigned short>);
|
||||
unsigned short from_python(PyObject*, boost::python::type<const unsigned short&>);
|
||||
|
||||
PyObject* to_python(char);
|
||||
char from_python(PyObject*, boost::python::type<char>);
|
||||
char from_python(PyObject*, boost::python::type<const char&>);
|
||||
|
||||
PyObject* to_python(signed char);
|
||||
signed char from_python(PyObject*, boost::python::type<signed char>);
|
||||
signed char from_python(PyObject*, boost::python::type<const signed char&>);
|
||||
@@ -130,6 +174,36 @@ PyObject* to_python(const std::string& s);
|
||||
std::string from_python(PyObject*, boost::python::type<std::string>);
|
||||
std::string from_python(PyObject*, boost::python::type<const std::string&>);
|
||||
|
||||
inline PyObject* to_python(const std::complex<float>& x)
|
||||
{
|
||||
return boost::python::detail::complex_to_python<float>(x);
|
||||
}
|
||||
|
||||
inline PyObject* to_python(const std::complex<double>& x)
|
||||
{
|
||||
return boost::python::detail::complex_to_python<double>(x);
|
||||
}
|
||||
|
||||
inline std::complex<double> from_python(PyObject* p,
|
||||
boost::python::type<std::complex<double> >) {
|
||||
return boost::python::detail::complex_from_python(p, boost::python::type<double>());
|
||||
}
|
||||
|
||||
inline std::complex<double> from_python(PyObject* p,
|
||||
boost::python::type<const std::complex<double>&>) {
|
||||
return boost::python::detail::complex_from_python(p, boost::python::type<double>());
|
||||
}
|
||||
|
||||
inline std::complex<float> from_python(PyObject* p,
|
||||
boost::python::type<std::complex<float> >) {
|
||||
return boost::python::detail::complex_from_python(p, boost::python::type<float>());
|
||||
}
|
||||
|
||||
inline std::complex<float> from_python(PyObject* p,
|
||||
boost::python::type<const std::complex<float>&>) {
|
||||
return boost::python::detail::complex_from_python(p, boost::python::type<float>());
|
||||
}
|
||||
|
||||
// For when your C++ function really wants to pass/return a PyObject*
|
||||
PyObject* to_python(PyObject*);
|
||||
PyObject* from_python(PyObject*, boost::python::type<PyObject*>);
|
||||
@@ -304,6 +378,11 @@ inline unsigned short from_python(PyObject* p, boost::python::type<const unsigne
|
||||
return from_python(p, boost::python::type<unsigned short>());
|
||||
}
|
||||
|
||||
inline char from_python(PyObject* p, boost::python::type<const char&>)
|
||||
{
|
||||
return from_python(p, boost::python::type<char>());
|
||||
}
|
||||
|
||||
inline signed char from_python(PyObject* p, boost::python::type<const signed char&>)
|
||||
{
|
||||
return from_python(p, boost::python::type<signed char>());
|
||||
|
||||
@@ -5,6 +5,9 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// Mar 01 01 Use PyObject_INIT() instead of trying to hand-initialize (David Abrahams)
|
||||
|
||||
#ifndef BASE_OBJECT_DWA051600_H_
|
||||
# define BASE_OBJECT_DWA051600_H_
|
||||
@@ -46,9 +49,8 @@ base_object<python_type>::base_object(PyTypeObject* type_obj)
|
||||
std::
|
||||
#endif
|
||||
memset(bp, 0, sizeof(base_python_type));
|
||||
ob_refcnt = 1;
|
||||
ob_type = type_obj;
|
||||
Py_INCREF(type_obj);
|
||||
PyObject_INIT(bp, type_obj);
|
||||
}
|
||||
|
||||
template <class python_type>
|
||||
|
||||
@@ -6,6 +6,9 @@
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
|
||||
// Revision History:
|
||||
// 04 Mar 01 Some fixes so it will compile with Intel C++ (Dave Abrahams)
|
||||
|
||||
#ifndef CONFIG_DWA052200_H_
|
||||
# define CONFIG_DWA052200_H_
|
||||
|
||||
@@ -21,7 +24,7 @@
|
||||
# else
|
||||
# define BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE namespace boost { namespace python {
|
||||
# define BOOST_PYTHON_END_CONVERSION_NAMESPACE }} // namespace boost::python
|
||||
# define BOOST_PYTHON_CONVERSION python
|
||||
# define BOOST_PYTHON_CONVERSION boost::python
|
||||
# define BOOST_PYTHON_IMPORT_CONVERSION(x) void never_defined() // so we can follow the macro with a ';'
|
||||
# endif
|
||||
|
||||
@@ -46,11 +49,18 @@
|
||||
# endif
|
||||
|
||||
// The STLport puts all of the standard 'C' library names in std (as far as the
|
||||
// user is concerned), but without it you need a fix if you're using MSVC.
|
||||
# if defined(BOOST_MSVC6_OR_EARLIER) && !defined(__STLPORT)
|
||||
// user is concerned), but without it you need a fix if you're using MSVC or
|
||||
// Intel C++
|
||||
# if defined(BOOST_MSVC_STD_ITERATOR)
|
||||
# define BOOST_CSTD_
|
||||
# else
|
||||
# define BOOST_CSTD_ std
|
||||
# endif
|
||||
|
||||
#ifdef _WIN32
|
||||
# define BOOST_PYTHON_MODULE_INIT(name) extern "C" __declspec(dllexport) void init##name()
|
||||
#else
|
||||
# define BOOST_PYTHON_MODULE_INIT(name) extern "C" void init##name()
|
||||
#endif
|
||||
|
||||
#endif // CONFIG_DWA052200_H_
|
||||
|
||||
@@ -6,9 +6,13 @@
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// This file automatically generated for 5-argument constructors by
|
||||
// This file automatically generated for 10-argument constructors by
|
||||
// gen_extclass.python
|
||||
|
||||
// Revision History:
|
||||
// 05 Mar 01 Fixed a bug which prevented auto_ptr values from being converted
|
||||
// to_python (Dave Abrahams)
|
||||
|
||||
#ifndef EXTENSION_CLASS_DWA052000_H_
|
||||
# define EXTENSION_CLASS_DWA052000_H_
|
||||
|
||||
@@ -22,6 +26,7 @@
|
||||
# include <boost/python/detail/init_function.hpp>
|
||||
# include <typeinfo>
|
||||
# include <boost/smart_ptr.hpp>
|
||||
# include <boost/type_traits.hpp>
|
||||
|
||||
namespace boost { namespace python {
|
||||
|
||||
@@ -61,7 +66,7 @@ T* check_non_null(T* p)
|
||||
return p;
|
||||
}
|
||||
|
||||
template <class T> class held_instance;
|
||||
template <class Held> class held_instance;
|
||||
|
||||
typedef void* (*conversion_function_ptr)(void*);
|
||||
|
||||
@@ -133,6 +138,26 @@ class class_registry
|
||||
static std::vector<derived_class_info> static_derived_class_info;
|
||||
};
|
||||
|
||||
template <bool is_pointer>
|
||||
struct is_null_helper
|
||||
{
|
||||
template <class Ptr>
|
||||
static bool test(Ptr x) { return x == 0; }
|
||||
};
|
||||
|
||||
template <>
|
||||
struct is_null_helper<false>
|
||||
{
|
||||
template <class Ptr>
|
||||
static bool test(const Ptr& x) { return x.get() == 0; }
|
||||
};
|
||||
|
||||
template <class Ptr>
|
||||
bool is_null(const Ptr& x)
|
||||
{
|
||||
return is_null_helper<(is_pointer<Ptr>::value)>::test(x);
|
||||
}
|
||||
|
||||
}}} // namespace boost::python::detail
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
@@ -178,9 +203,9 @@ class python_extension_class_converters
|
||||
new boost::python::detail::instance_value_holder<T,U>(result.get(), x)));
|
||||
return result.release();
|
||||
}
|
||||
|
||||
// Convert to T*
|
||||
friend T* from_python(PyObject* obj, boost::python::type<T*>)
|
||||
|
||||
friend
|
||||
T* non_null_from_python(PyObject* obj, boost::python::type<T*>)
|
||||
{
|
||||
// downcast to an extension_instance, then find the actual T
|
||||
boost::python::detail::extension_instance* self = boost::python::detail::get_extension_instance(obj);
|
||||
@@ -201,9 +226,18 @@ class python_extension_class_converters
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
|
||||
// Convert to PtrType, where PtrType can be dereferenced to obtain a T.
|
||||
// Convert to T*
|
||||
friend T* from_python(PyObject* obj, boost::python::type<T*>)
|
||||
{
|
||||
if (obj == Py_None)
|
||||
return 0;
|
||||
else
|
||||
return non_null_from_python(obj, boost::python::type<T*>());
|
||||
}
|
||||
|
||||
// Extract from obj a mutable reference to the PtrType object which is holding a T.
|
||||
template <class PtrType>
|
||||
static PtrType& ptr_from_python(PyObject* obj, boost::python::type<PtrType>)
|
||||
static PtrType& smart_ptr_reference(PyObject* obj, boost::python::type<PtrType>)
|
||||
{
|
||||
// downcast to an extension_instance, then find the actual T
|
||||
boost::python::detail::extension_instance* self = boost::python::detail::get_extension_instance(obj);
|
||||
@@ -220,9 +254,29 @@ class python_extension_class_converters
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
|
||||
// Extract from obj a reference to the PtrType object which is holding a
|
||||
// T. If it weren't for auto_ptr, it would be a constant reference. Do not
|
||||
// modify the referent except by copying an auto_ptr! If obj is None, the
|
||||
// reference denotes a default-constructed PtrType
|
||||
template <class PtrType>
|
||||
static PyObject* ptr_to_python(PtrType x)
|
||||
static PtrType& smart_ptr_value(PyObject* obj, boost::python::type<PtrType>)
|
||||
{
|
||||
if (obj == Py_None)
|
||||
{
|
||||
static PtrType null_ptr;
|
||||
return null_ptr;
|
||||
}
|
||||
return smart_ptr_reference(obj, boost::python::type<PtrType>());
|
||||
}
|
||||
|
||||
template <class PtrType>
|
||||
static PyObject* smart_ptr_to_python(PtrType x)
|
||||
{
|
||||
if (boost::python::detail::is_null(x))
|
||||
{
|
||||
return boost::python::detail::none();
|
||||
}
|
||||
|
||||
boost::python::reference<boost::python::detail::extension_instance> result(create_instance());
|
||||
result->add_implementation(
|
||||
std::auto_ptr<boost::python::detail::instance_holder_base>(
|
||||
@@ -254,7 +308,7 @@ class python_extension_class_converters
|
||||
|
||||
// Convert to T&
|
||||
friend T& from_python(PyObject* p, boost::python::type<T&>)
|
||||
{ return *boost::python::detail::check_non_null(from_python(p, boost::python::type<T*>())); }
|
||||
{ return *boost::python::detail::check_non_null(non_null_from_python(p, boost::python::type<T*>())); }
|
||||
|
||||
// Convert to const T&
|
||||
friend const T& from_python(PyObject* p, boost::python::type<const T&>)
|
||||
@@ -265,28 +319,28 @@ class python_extension_class_converters
|
||||
{ return from_python(p, boost::python::type<T&>()); }
|
||||
|
||||
friend std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<std::auto_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
{ return smart_ptr_reference(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<std::auto_ptr<T> >)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
friend std::auto_ptr<T> from_python(PyObject* p, boost::python::type<std::auto_ptr<T> >)
|
||||
{ return smart_ptr_value(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend const std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<const std::auto_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
{ return smart_ptr_value(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend PyObject* to_python(std::auto_ptr<T> x)
|
||||
{ return ptr_to_python(x); }
|
||||
{ return smart_ptr_to_python(x); }
|
||||
|
||||
friend boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
{ return smart_ptr_reference(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T> >)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
friend const boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T> >)
|
||||
{ return smart_ptr_value(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend const boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<const boost::shared_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
{ return smart_ptr_value(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend PyObject* to_python(boost::shared_ptr<T> x)
|
||||
{ return ptr_to_python(x); }
|
||||
{ return smart_ptr_to_python(x); }
|
||||
};
|
||||
|
||||
// Convert T to_python, instantiated on demand and only if there isn't a
|
||||
@@ -363,8 +417,8 @@ class extension_class
|
||||
~extension_class();
|
||||
|
||||
// define constructors
|
||||
template <class A1, class A2, class A3, class A4, class A5>
|
||||
inline void def(constructor<A1, A2, A3, A4, A5>)
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10>
|
||||
inline void def(constructor<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10>)
|
||||
// The following incantation builds a signature1, signature2,... object. It
|
||||
// should _all_ get optimized away.
|
||||
{ add_constructor(
|
||||
@@ -373,7 +427,12 @@ class extension_class
|
||||
prepend(type<A3>::id(),
|
||||
prepend(type<A4>::id(),
|
||||
prepend(type<A5>::id(),
|
||||
signature0()))))));
|
||||
prepend(type<A6>::id(),
|
||||
prepend(type<A7>::id(),
|
||||
prepend(type<A8>::id(),
|
||||
prepend(type<A9>::id(),
|
||||
prepend(type<A10>::id(),
|
||||
signature0())))))))))));
|
||||
}
|
||||
|
||||
|
||||
@@ -608,23 +667,33 @@ class extension_class
|
||||
|
||||
// A simple wrapper over a T which allows us to use extension_class<T> with a
|
||||
// single template parameter only. See extension_class<T>, above.
|
||||
template <class T>
|
||||
class held_instance : public T
|
||||
template <class Held>
|
||||
class held_instance : public Held
|
||||
{
|
||||
// There are no member functions: we want to avoid inadvertently overriding
|
||||
// any virtual functions in T.
|
||||
// any virtual functions in Held.
|
||||
public:
|
||||
held_instance(PyObject*) : T() {}
|
||||
held_instance(PyObject*) : Held() {}
|
||||
template <class A1>
|
||||
held_instance(PyObject*, A1 a1) : T(a1) {}
|
||||
held_instance(PyObject*, A1 a1) : Held(a1) {}
|
||||
template <class A1, class A2>
|
||||
held_instance(PyObject*, A1 a1, A2 a2) : T(a1, a2) {}
|
||||
held_instance(PyObject*, A1 a1, A2 a2) : Held(a1, a2) {}
|
||||
template <class A1, class A2, class A3>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3) : T(a1, a2, a3) {}
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3) : Held(a1, a2, a3) {}
|
||||
template <class A1, class A2, class A3, class A4>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4) : T(a1, a2, a3, a4) {}
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4) : Held(a1, a2, a3, a4) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5) : T(a1, a2, a3, a4, a5) {}
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5) : Held(a1, a2, a3, a4, a5) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6) : Held(a1, a2, a3, a4, a5, a6) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7) : Held(a1, a2, a3, a4, a5, a6, a7) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8) : Held(a1, a2, a3, a4, a5, a6, a7, a8) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9) : Held(a1, a2, a3, a4, a5, a6, a7, a8, a9) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10>
|
||||
held_instance(PyObject*, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10) : Held(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {}
|
||||
};
|
||||
|
||||
// Abstract base class for all obj holders. Base for template class
|
||||
@@ -676,6 +745,21 @@ public:
|
||||
template <class A1, class A2, class A3, class A4, class A5>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5) :
|
||||
m_held(p, a1, a2, a3, a4, a5) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6) :
|
||||
m_held(p, a1, a2, a3, a4, a5, a6) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7) :
|
||||
m_held(p, a1, a2, a3, a4, a5, a6, a7) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8) :
|
||||
m_held(p, a1, a2, a3, a4, a5, a6, a7, a8) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9) :
|
||||
m_held(p, a1, a2, a3, a4, a5, a6, a7, a8, a9) {}
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10>
|
||||
instance_value_holder(extension_instance* p, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10) :
|
||||
m_held(p, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {}
|
||||
|
||||
public: // implementation of instance_holder_base required interface
|
||||
bool held_by_value() { return true; }
|
||||
@@ -721,8 +805,6 @@ class extension_instance : public instance
|
||||
// Template function implementations
|
||||
//
|
||||
|
||||
tuple extension_class_coerce(ref l, ref r);
|
||||
|
||||
template <class T, class U>
|
||||
extension_class<T, U>::extension_class()
|
||||
: extension_class_base(typeid(T).name())
|
||||
@@ -743,7 +825,7 @@ void extension_class<T, U>::def_standard_coerce()
|
||||
ref coerce_fct = dict().get_item(string("__coerce__"));
|
||||
|
||||
if(coerce_fct.get() == 0) // not yet defined
|
||||
this->def(&extension_class_coerce, "__coerce__");
|
||||
this->def(&standard_coerce, "__coerce__");
|
||||
}
|
||||
|
||||
template <class T, class U>
|
||||
@@ -831,4 +913,3 @@ std::vector<derived_class_info> class_registry<T>::static_derived_class_info;
|
||||
}}} // namespace boost::python::detail
|
||||
|
||||
#endif // EXTENSION_CLASS_DWA052000_H_
|
||||
|
||||
|
||||
@@ -110,11 +110,11 @@ template <class T, class A1, class A2> struct init2;
|
||||
template <class T, class A1, class A2, class A3> struct init3;
|
||||
template <class T, class A1, class A2, class A3, class A4> struct init4;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5> struct init5;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6> struct Init6;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7> struct Init7;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8> struct Init8;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9> struct Init9;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10> struct Init10;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6> struct init6;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7> struct init7;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8> struct init8;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9> struct init9;
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10> struct init10;
|
||||
|
||||
template <class T>
|
||||
struct init_function
|
||||
@@ -165,7 +165,7 @@ struct init_function
|
||||
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6>
|
||||
static init* create(signature6<A1, A2, A3, A4, A5, A6>) {
|
||||
return new Init6<T,
|
||||
return new init6<T,
|
||||
detail::parameter_traits<A1>::const_reference,
|
||||
detail::parameter_traits<A2>::const_reference,
|
||||
detail::parameter_traits<A3>::const_reference,
|
||||
@@ -176,7 +176,7 @@ struct init_function
|
||||
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7>
|
||||
static init* create(signature7<A1, A2, A3, A4, A5, A6, A7>) {
|
||||
return new Init7<T,
|
||||
return new init7<T,
|
||||
detail::parameter_traits<A1>::const_reference,
|
||||
detail::parameter_traits<A2>::const_reference,
|
||||
detail::parameter_traits<A3>::const_reference,
|
||||
@@ -188,7 +188,7 @@ struct init_function
|
||||
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
|
||||
static init* create(signature8<A1, A2, A3, A4, A5, A6, A7, A8>) {
|
||||
return new Init8<T,
|
||||
return new init8<T,
|
||||
detail::parameter_traits<A1>::const_reference,
|
||||
detail::parameter_traits<A2>::const_reference,
|
||||
detail::parameter_traits<A3>::const_reference,
|
||||
@@ -201,7 +201,7 @@ struct init_function
|
||||
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
|
||||
static init* create(signature9<A1, A2, A3, A4, A5, A6, A7, A8, A9>) {
|
||||
return new Init9<T,
|
||||
return new init9<T,
|
||||
detail::parameter_traits<A1>::const_reference,
|
||||
detail::parameter_traits<A2>::const_reference,
|
||||
detail::parameter_traits<A3>::const_reference,
|
||||
@@ -215,7 +215,7 @@ struct init_function
|
||||
|
||||
template <class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10>
|
||||
static init* create(signature10<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10>) {
|
||||
return new Init10<T,
|
||||
return new init10<T,
|
||||
detail::parameter_traits<A1>::const_reference,
|
||||
detail::parameter_traits<A2>::const_reference,
|
||||
detail::parameter_traits<A3>::const_reference,
|
||||
@@ -353,7 +353,7 @@ struct init5 : init
|
||||
};
|
||||
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6>
|
||||
struct Init6 : init
|
||||
struct init6 : init
|
||||
{
|
||||
virtual instance_holder_base* create_holder(extension_instance* self, PyObject* args, PyObject* /*keywords*/) const
|
||||
{
|
||||
@@ -379,7 +379,7 @@ struct Init6 : init
|
||||
};
|
||||
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7>
|
||||
struct Init7 : init
|
||||
struct init7 : init
|
||||
{
|
||||
virtual instance_holder_base* create_holder(extension_instance* self, PyObject* args, PyObject* /*keywords*/) const
|
||||
{
|
||||
@@ -407,7 +407,7 @@ struct Init7 : init
|
||||
};
|
||||
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
|
||||
struct Init8 : init
|
||||
struct init8 : init
|
||||
{
|
||||
virtual instance_holder_base* create_holder(extension_instance* self, PyObject* args, PyObject* /*keywords*/) const
|
||||
{
|
||||
@@ -437,7 +437,7 @@ struct Init8 : init
|
||||
};
|
||||
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
|
||||
struct Init9 : init
|
||||
struct init9 : init
|
||||
{
|
||||
virtual instance_holder_base* create_holder(extension_instance* self, PyObject* args, PyObject* /*keywords*/) const
|
||||
{
|
||||
@@ -469,7 +469,7 @@ struct Init9 : init
|
||||
};
|
||||
|
||||
template <class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9, class A10>
|
||||
struct Init10 : init
|
||||
struct init10 : init
|
||||
{
|
||||
virtual instance_holder_base* create_holder(extension_instance* self, PyObject* args, PyObject* /*keywords*/) const
|
||||
{
|
||||
|
||||
@@ -1,5 +1,30 @@
|
||||
// (C) Copyright David Abrahams 2000. Permission to copy, use, modify, sell and
|
||||
// distribute this software is granted provided this copyright notice appears
|
||||
// in all copies. This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
|
||||
// This file serves as a wrapper around <Python.h> which allows it to be
|
||||
// compiled with GCC 2.95.2 under Win32 and which disables the default MSVC
|
||||
// behavior so that a program may be compiled in debug mode without requiring a
|
||||
// special debugging build of the Python library.
|
||||
|
||||
|
||||
// To use the Python debugging library, #define BOOST_DEBUG_PYTHON on the
|
||||
// compiler command-line.
|
||||
|
||||
// Revision History:
|
||||
// 05 Mar 01 Suppress warnings under Cygwin with Python 2.0 (Dave Abrahams)
|
||||
// 04 Mar 01 Rolled in some changes from the Dragon fork (Dave Abrahams)
|
||||
// 01 Mar 01 define PyObject_INIT() for Python 1.x (Dave Abrahams)
|
||||
|
||||
|
||||
#include <patchlevel.h>
|
||||
|
||||
#ifdef _DEBUG
|
||||
# ifndef DEBUG_PYTHON
|
||||
# ifndef BOOST_DEBUG_PYTHON
|
||||
# undef _DEBUG // Don't let Python force the debug library just because we're debugging.
|
||||
# define DEBUG_UNDEFINED_FROM_WRAP_PYTHON_H
|
||||
# endif
|
||||
@@ -16,9 +41,11 @@ typedef int pid_t;
|
||||
# define WORD_BIT 32
|
||||
# define hypot _hypot
|
||||
# include <stdio.h>
|
||||
# define HAVE_CLOCK
|
||||
# define HAVE_STRFTIME
|
||||
# define HAVE_STRERROR
|
||||
# if !defined(PY_MAJOR_VERSION) || PY_MAJOR_VERSION < 2
|
||||
# define HAVE_CLOCK
|
||||
# define HAVE_STRFTIME
|
||||
# define HAVE_STRERROR
|
||||
# endif
|
||||
# define NT_THREADS
|
||||
# define WITH_THREAD
|
||||
# ifndef NETSCAPE_PI
|
||||
@@ -44,6 +71,8 @@ typedef int pid_t;
|
||||
# define _MSC_VER 900
|
||||
# endif
|
||||
|
||||
# elif defined(_MSC_VER)
|
||||
# include <limits> // prevents Python.h from defining LONGLONG_MAX, LONGLONG_MIN, and ULONGLONG_MAX
|
||||
# endif
|
||||
|
||||
#endif // _WIN32
|
||||
@@ -59,3 +88,7 @@ typedef int pid_t;
|
||||
# define _DEBUG
|
||||
#endif
|
||||
|
||||
#if !defined(PY_MAJOR_VERSION) || PY_MAJOR_VERSION < 2
|
||||
# define PyObject_INIT(op, typeobj) \
|
||||
( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
|
||||
#endif
|
||||
|
||||
@@ -18,11 +18,10 @@ namespace boost { namespace python {
|
||||
|
||||
class module_builder
|
||||
{
|
||||
typedef PyObject * (*raw_function_ptr)(boost::python::tuple const &, boost::python::dictionary const &);
|
||||
|
||||
public:
|
||||
// Create a module. REQUIRES: only one module_builder is created per module.
|
||||
module_builder(const char* name);
|
||||
~module_builder();
|
||||
|
||||
// Add elements to the module
|
||||
void add(detail::function* x, const char* name);
|
||||
@@ -41,13 +40,29 @@ class module_builder
|
||||
add(detail::new_wrapped_function(fn), name);
|
||||
}
|
||||
|
||||
static string name();
|
||||
// Return true iff a module is currently being built.
|
||||
static bool initializing();
|
||||
|
||||
// Return the name of the module currently being built.
|
||||
// REQUIRES: initializing() == true
|
||||
static string name();
|
||||
|
||||
// Return a pointer to the Python module object being built
|
||||
PyObject* module() const;
|
||||
|
||||
private:
|
||||
PyObject* m_module;
|
||||
static PyMethodDef initial_methods[1];
|
||||
};
|
||||
|
||||
//
|
||||
// inline implementations
|
||||
//
|
||||
inline PyObject* module_builder::module() const
|
||||
{
|
||||
return m_module;
|
||||
}
|
||||
|
||||
}} // namespace boost::python
|
||||
|
||||
#endif
|
||||
|
||||
@@ -1,15 +1,38 @@
|
||||
// (C) Copyright Ullrich Koethe and David Abrahams 2000-2001. Permission to
|
||||
// copy, use, modify, sell and distribute this software is granted provided
|
||||
// this copyright notice appears in all copies. This software is provided "as
|
||||
// is" without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
//
|
||||
// The authors gratefully acknowlege the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// 23 Jan 2001 - Another stupid typo fix by Ralf W. Grosse-Kunstleve (David Abrahams)
|
||||
// 20 Jan 2001 - Added a fix from Ralf W. Grosse-Kunstleve (David Abrahams)
|
||||
#ifndef OPERATORS_UK112000_H_
|
||||
#define OPERATORS_UK112000_H_
|
||||
|
||||
#include <boost/python/detail/functions.hpp>
|
||||
#if !defined(__GNUC__) || defined(__SGI_STL_PORT)
|
||||
# include <sstream>
|
||||
#else
|
||||
# include <strstream>
|
||||
#endif
|
||||
# include <boost/python/reference.hpp>
|
||||
# include <boost/python/detail/functions.hpp>
|
||||
|
||||
// When STLport is used with native streams, _STL::ostringstream().str() is not
|
||||
// _STL::string, but std::string. This confuses to_python(), so we'll use
|
||||
// strstream instead. Also, GCC 2.95.2 doesn't have sstream.
|
||||
# if defined(__SGI_STL_PORT) ? defined(__SGI_STL_OWN_IOSTREAMS) : (!defined(__GNUC__) || __GNUC__ > 2)
|
||||
# define BOOST_PYTHON_USE_SSTREAM
|
||||
# endif
|
||||
|
||||
#if defined(BOOST_PYTHON_USE_SSTREAM)
|
||||
# include <sstream>
|
||||
# else
|
||||
# include <strstream>
|
||||
# endif
|
||||
|
||||
namespace boost { namespace python {
|
||||
|
||||
tuple standard_coerce(ref l, ref r);
|
||||
|
||||
namespace detail {
|
||||
|
||||
// helper class for automatic operand type detection
|
||||
@@ -461,6 +484,16 @@ namespace detail
|
||||
static const char * rname() { return "__rcmp__"; }
|
||||
};
|
||||
|
||||
# ifndef BOOST_PYTHON_USE_SSTREAM
|
||||
class unfreezer {
|
||||
public:
|
||||
unfreezer(std::ostrstream& s) : m_stream(s) {}
|
||||
~unfreezer() { m_stream.freeze(false); }
|
||||
private:
|
||||
std::ostrstream& m_stream;
|
||||
};
|
||||
# endif
|
||||
|
||||
// str(): Manual specialization needed because the string conversion does not follow
|
||||
// the standard pattern relized by the macros.
|
||||
template <>
|
||||
@@ -473,19 +506,18 @@ namespace detail
|
||||
{
|
||||
tuple args(ref(arguments, ref::increment_count));
|
||||
|
||||
#if !defined(__GNUC__) || defined(__SGI_STL_PORT)
|
||||
// When STLport is used with native streams, _STL::ostringstream().str() is not
|
||||
// _STL::string, but std::string.
|
||||
# ifdef BOOST_PYTHON_USE_SSTREAM
|
||||
std::ostringstream s;
|
||||
s << BOOST_PYTHON_CONVERSION::from_python(args[0].get(), boost::python::type<operand>());
|
||||
#else
|
||||
return BOOST_PYTHON_CONVERSION::to_python(s.str());
|
||||
# else
|
||||
std::ostrstream s;
|
||||
s << BOOST_PYTHON_CONVERSION::from_python(args[0].get(), boost::python::type<operand>()) << char();
|
||||
#endif
|
||||
|
||||
#if !defined(__GNUC__) || defined(__SGI_STL_PORT)
|
||||
return BOOST_PYTHON_CONVERSION::to_python(s.str());
|
||||
#else
|
||||
auto unfreezer unfreeze(s);
|
||||
return BOOST_PYTHON_CONVERSION::to_python(const_cast<char const *>(s.str()));
|
||||
#endif
|
||||
# endif
|
||||
}
|
||||
|
||||
const char* description() const
|
||||
@@ -501,4 +533,5 @@ namespace detail
|
||||
|
||||
}} // namespace boost::python
|
||||
|
||||
# undef BOOST_PYTHON_USE_SSTREAM
|
||||
#endif /* OPERATORS_UK112000_H_ */
|
||||
|
||||
217
release_notes.txt
Normal file
217
release_notes.txt
Normal file
@@ -0,0 +1,217 @@
|
||||
2000-11-22 10:00
|
||||
Ullrich fixed bug in operator_dispatcher<op_long>.
|
||||
|
||||
2000-11-21 10:00
|
||||
Changed all class and function names into lower_case.
|
||||
|
||||
Ullrich updated documentation for operator wrapping.
|
||||
|
||||
2000-11-20 10:00
|
||||
Ullrich renamed ExtensionClass:register_coerce() into
|
||||
ExtensionClass:def_standard_coerce() and made it public
|
||||
|
||||
Ullrich improved shared_pod_manager.
|
||||
|
||||
2000-11-17 15:04
|
||||
Changed allocation strategy of shared_pod_manager to make it portable.
|
||||
|
||||
Added pickling support + tests thanks to "Ralf W. Grosse-Kunstleve"
|
||||
<rwgk@cci.lbl.gov>
|
||||
|
||||
Added a specialization of Callback<const char*> to prevent unsafe usage.
|
||||
|
||||
Fixed Ullrich's operator_dispatcher refcount bug
|
||||
|
||||
Removed const char* return values from virtual functions in tests; that
|
||||
usage was unsafe.
|
||||
|
||||
Ullrich changed Module::add() so that it steals a reference (fix of refcount bug)
|
||||
|
||||
Ullrich added operator_dispatcher::create() optimization
|
||||
|
||||
Ullrich changed design and implementation of TypeObjectBase::enable() (to eliminate low-level
|
||||
code) and added shared_pod_manager optimization.
|
||||
|
||||
|
||||
2000-11-15 12:01
|
||||
Fixed refcount bugs in operator calls.
|
||||
|
||||
Added callback_adjust_refcount(PyObject*, Type<T>) to account for different ownership
|
||||
semantics of Callback's return types and Caller's arguments (which both use from_python())
|
||||
This bug caused refcount errors during operator calls.
|
||||
|
||||
Moved operator_dispatcher into extclass.cpp
|
||||
Gave it shared ownership of the objects it wraps
|
||||
|
||||
Introduced sequence points in extension_class_coerce for exception-safety
|
||||
|
||||
UPPER_CASE_MACRO_NAMES
|
||||
|
||||
MixedCase template type argument names
|
||||
|
||||
Changed internal error reporting to use Python exceptions so we don't force the
|
||||
user to link in iostreams code
|
||||
|
||||
Changed error return value of call_cmp to -1
|
||||
|
||||
Moved unwrap_* functions out of operator_dispatcher. This was transitional: when
|
||||
I realized they didn't need to be declared in extclass.h I moved them out, but
|
||||
now that operator_dispatcher itself is in extclass.cpp they could go back in.
|
||||
|
||||
Numerous formatting tweaks
|
||||
|
||||
Updated the BoundFunction::create() optimization and enabled it so it could actually be used!
|
||||
|
||||
2000-11-15 00:26
|
||||
|
||||
Made Ullrich's operators support work with MSVC
|
||||
|
||||
Cleaned up operators.h such that invalid define_operator<0> is no longer needed.
|
||||
|
||||
Ullrich created operators.h to support wrapping of C++ operators (including the "__r*__" forms).
|
||||
He added several auxiliary classes to extclass.h and extclass.cpp (most importantly,
|
||||
py::detail::operator_dispatcher and py::operators)
|
||||
|
||||
2000-11-13 22:29
|
||||
|
||||
removed obsolete ExtensionClassFromPython for good.
|
||||
|
||||
removed unused class ExtensionType forward declaration
|
||||
|
||||
2000-11-12 13:08
|
||||
|
||||
Added enum_as_int_converters for easier enum wrapping
|
||||
|
||||
Introduced new conversion namespace macros:
|
||||
PY_BEGIN_CONVERSION_NAMESPACE,
|
||||
PY_END_CONVERSION_NAMESPACE,
|
||||
PY_CONVERSION
|
||||
|
||||
callback.h, gen_callback.py:
|
||||
Added call() function so that a regular python function (as opposed to
|
||||
method or other function-as-attribute) can be called.
|
||||
|
||||
Added newlines for readability.
|
||||
|
||||
class_wrapper.h:
|
||||
Fixed a bug in add(), which allows non-method class attributes
|
||||
|
||||
Ullrich has added def_raw for simple varargs and keyword support.
|
||||
|
||||
Fixed version number check for __MWERKS__
|
||||
|
||||
Added tests for enums and non-method class attributes
|
||||
|
||||
objects.h/objects.cpp:
|
||||
Added py::String operator*= and operator* for repetition
|
||||
|
||||
Change Dict::items(), keys(), and values() to return a List
|
||||
|
||||
Added template versions of set_item, etc., methods so that users can optionally
|
||||
use C++ types that have to_python() functions as parameters.
|
||||
|
||||
Changed various Ptr by-value parameters to const Ptr&
|
||||
|
||||
|
||||
======= Release =======
|
||||
2000-11-06 0:22
|
||||
Lots of documentation updates
|
||||
|
||||
added 4-argument template constructor to py::Tuple
|
||||
|
||||
added "add" member function to ClassWrapper<> to allow arbitrary Python
|
||||
objects to be added to an extension class.
|
||||
|
||||
gen_all.py now generates support for n argument member functions and n+1
|
||||
argument member functions at the suggestion of "Ralf W. Grosse-Kunstleve"
|
||||
<rwgk@cci.lbl.gov>
|
||||
|
||||
Added regression tests and re-ordered declare_base calls to verify that the
|
||||
phantom base class issue is resolved.
|
||||
|
||||
2000-11-04 17:35
|
||||
|
||||
Integrated Ullrich Koethe's brilliant from_python_experiment for better
|
||||
error-reporting in many cases.
|
||||
|
||||
extclass.h, gen_extclass.py:
|
||||
removed special-case MSVC code
|
||||
added much commentary
|
||||
removed unused py_copy_to_new_value_holder
|
||||
|
||||
init_function.h, gen_init_function.py:
|
||||
added missing 'template' keyword on type-dependent template member usage
|
||||
removed special-case MSVC code
|
||||
added much commentary
|
||||
|
||||
2000-11-04 0:36
|
||||
|
||||
Removed the need for the phantom base class that screwed up inheritance
|
||||
hierarchies, introduced error-prone ordering dependencies, and complexified
|
||||
logic in many places!
|
||||
|
||||
extclass.h: Added some explanatory comments, removed wasteful m_self member
|
||||
of HeldInstance
|
||||
|
||||
extclass_demo.cpp: Added #pragmas which allow compilation in ansi strict
|
||||
mode under Metrowerks
|
||||
|
||||
functions.h: Added virtual_function as part of phantom base class removal;
|
||||
expanded commentary
|
||||
|
||||
pyptr.h: Added some missing 'typename's and a GCC workaround fix
|
||||
|
||||
subclass.cpp: Added missing string literal const_cast<>s.
|
||||
|
||||
2000-11-03 10:58
|
||||
|
||||
Fix friend function instantiation bug caught by Metrowerks (thanks
|
||||
Metrowerks!)
|
||||
|
||||
Add proof-of-concept for one technique of wrapping function that return a
|
||||
pointer
|
||||
|
||||
Worked around MSVC optimizer bug by writing to_python(double) and
|
||||
to_python(float) out-of-line
|
||||
|
||||
2000-11-02 23:25
|
||||
|
||||
Add /Zm200 option to vc6_prj to deal with MSVC resource limitations
|
||||
|
||||
Remove conflicting /Ot option from vc6_prj release build
|
||||
|
||||
======= Release =======
|
||||
2000-11-02 17:42
|
||||
|
||||
Added a fix for interactions between default virtual function
|
||||
implementations and declare_base(). You still need to write your
|
||||
declare_base() /after/ all member functions have been def()d for the two
|
||||
classes concerned. Many, many thanks to Ullrich Koethe
|
||||
<koethe@informatik.uni-hamburg.de> for all his work on this.
|
||||
|
||||
Added missing conversions:
|
||||
to_python(float)
|
||||
from_python(const char* const&)
|
||||
from_python(const double&)
|
||||
from_python(const float&)
|
||||
|
||||
Added a Regression test for a reference-counting bug thanks to Mark Evans
|
||||
(<mark.evans@clarisay.com>)
|
||||
|
||||
const-ify ClassBase::getattr()
|
||||
|
||||
Add repr() function to Class<T>
|
||||
|
||||
Add to_python/from_python conversions for PyPtr<T>
|
||||
|
||||
Standardize set_item/get_item interfaces (instead of proxies) for Dict and List
|
||||
|
||||
Add Reprable<> template to newtypes.h
|
||||
|
||||
Fix a bug wherein the __module__ attribute would be lost for classes that have a
|
||||
default virtual function implementation.
|
||||
|
||||
Remove extra ';' in module.cpp thanks to "Ralf W. Grosse-Kunstleve"
|
||||
<rwgk@cci.lbl.gov>
|
||||
|
||||
Fix a bug in the code of example1.html
|
||||
@@ -5,6 +5,11 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// 04 Mar 01 Rolled in const_cast from Dragon fork (Dave Abrahams)
|
||||
// 03 Mar 01 added: pickle safety measures (Ralf W. Grosse-Kunstleve)
|
||||
// 03 Mar 01 bug fix: use bound_function::create() (instead of new bound_function)
|
||||
|
||||
#include <boost/python/classes.hpp>
|
||||
#include <boost/python/detail/functions.hpp>
|
||||
@@ -67,8 +72,7 @@ namespace {
|
||||
|
||||
ref global_class_reduce()
|
||||
{
|
||||
static ref result(detail::new_wrapped_function(class_reduce));
|
||||
return result;
|
||||
return ref(detail::new_wrapped_function(class_reduce));
|
||||
}
|
||||
|
||||
|
||||
@@ -93,17 +97,41 @@ namespace {
|
||||
ref getstate(PyObject_GetAttrString(obj, const_cast<char*>("__getstate__")),
|
||||
ref::null_ok);
|
||||
PyErr_Clear();
|
||||
|
||||
ref dict(PyObject_GetAttrString(obj, const_cast<char*>("__dict__")), ref::null_ok);
|
||||
PyErr_Clear();
|
||||
|
||||
if (getstate.get() != 0)
|
||||
{
|
||||
if (dict.get() != 0 && dictionary(dict).size() > 0)
|
||||
{
|
||||
ref getstate_manages_dict(PyObject_GetAttrString(instance_class.get(), const_cast<char*>("__getstate_manages_dict__")), ref::null_ok);
|
||||
PyErr_Clear();
|
||||
if (getstate_manages_dict.get() == 0)
|
||||
{
|
||||
PyErr_SetString(PyExc_RuntimeError, "Incomplete pickle support (__getstate_manages_dict__ not set)");
|
||||
throw error_already_set();
|
||||
}
|
||||
}
|
||||
|
||||
ref state = ref(PyEval_CallObject(getstate.get(), NULL));
|
||||
return tuple(instance_class, initargs, state);
|
||||
}
|
||||
|
||||
ref state(PyObject_GetAttrString(obj, const_cast<char*>("__dict__")), ref::null_ok);
|
||||
PyErr_Clear();
|
||||
if (state.get() != 0 && dictionary(state).size() > 0)
|
||||
if (getinitargs.get() == 0)
|
||||
{
|
||||
return tuple(instance_class, initargs, state);
|
||||
ref dict_defines_state(PyObject_GetAttrString(instance_class.get(), const_cast<char*>("__dict_defines_state__")), ref::null_ok);
|
||||
PyErr_Clear();
|
||||
if (dict_defines_state.get() == 0)
|
||||
{
|
||||
PyErr_SetString(PyExc_RuntimeError, "Incomplete pickle support (__dict_defines_state__ not set)");
|
||||
throw error_already_set();
|
||||
}
|
||||
}
|
||||
|
||||
if (dict.get() != 0 && dictionary(dict).size() > 0)
|
||||
{
|
||||
return tuple(instance_class, initargs, dict);
|
||||
}
|
||||
|
||||
return tuple(instance_class, initargs);
|
||||
@@ -111,8 +139,7 @@ namespace {
|
||||
|
||||
ref global_instance_reduce()
|
||||
{
|
||||
static ref result(detail::new_wrapped_function(instance_reduce));
|
||||
return result;
|
||||
return ref(detail::new_wrapped_function(instance_reduce));
|
||||
}
|
||||
}
|
||||
|
||||
@@ -177,7 +204,7 @@ namespace detail {
|
||||
if (!BOOST_CSTD_::strcmp(name, "__reduce__"))
|
||||
{
|
||||
ref target(as_object(this), ref::increment_count);
|
||||
return new bound_function(target, global_class_reduce());
|
||||
return bound_function::create(target, global_class_reduce());
|
||||
}
|
||||
|
||||
ref local_attribute = m_name_space.get_item(string(name).reference());
|
||||
@@ -348,7 +375,7 @@ PyObject* instance::getattr(const char* name, bool use_special_function)
|
||||
|
||||
if (!BOOST_CSTD_::strcmp(name, "__reduce__"))
|
||||
{
|
||||
return new detail::bound_function(ref(this, ref::increment_count), global_instance_reduce());
|
||||
return detail::bound_function::create(ref(this, ref::increment_count), global_instance_reduce());
|
||||
}
|
||||
|
||||
ref local_attribute = m_name_space.get_item(string(name).reference());
|
||||
@@ -840,7 +867,27 @@ namespace {
|
||||
void add_current_module_name(dictionary& name_space)
|
||||
{
|
||||
static string module_key("__module__", string::interned);
|
||||
name_space.set_item(module_key, module_builder::name());
|
||||
|
||||
// If the user didn't specify a __module__ attribute already
|
||||
if (name_space.get_item(module_key).get() == 0)
|
||||
{
|
||||
if (module_builder::initializing())
|
||||
{
|
||||
// The global __name__ is not properly set in this case
|
||||
name_space.set_item(module_key, module_builder::name());
|
||||
}
|
||||
else
|
||||
{
|
||||
// Get the module name from the global __name__
|
||||
PyObject *globals = PyEval_GetGlobals();
|
||||
if (globals != NULL)
|
||||
{
|
||||
PyObject *module_name = PyDict_GetItemString(globals, const_cast<char*>("__name__"));
|
||||
if (module_name != NULL)
|
||||
name_space.set_item(module_key, module_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -5,6 +5,10 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// 04 Mar 01 std::complex<> fixes for MSVC (Dave Abrahams)
|
||||
// 03 Mar 01 added: converters for [plain] char (Ralf W. Grosse-Kunstleve)
|
||||
|
||||
#include <boost/python/conversions.hpp>
|
||||
#include <typeinfo>
|
||||
@@ -44,6 +48,19 @@ void handle_exception()
|
||||
}
|
||||
}
|
||||
|
||||
namespace detail {
|
||||
|
||||
void expect_complex(PyObject* p)
|
||||
{
|
||||
if (!PyComplex_Check(p))
|
||||
{
|
||||
PyErr_SetString(PyExc_TypeError, "expected a complex number");
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace boost::python::detail
|
||||
|
||||
}} // namespace boost::python
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
@@ -160,6 +177,24 @@ unsigned short from_python(PyObject* p, boost::python::type<unsigned short> type
|
||||
return integer_from_python(p, type);
|
||||
}
|
||||
|
||||
PyObject* to_python(char c)
|
||||
{
|
||||
if (c == '\0') return PyString_FromString("");
|
||||
return PyString_FromStringAndSize(&c, 1);
|
||||
}
|
||||
|
||||
char from_python(PyObject* p, boost::python::type<char>)
|
||||
{
|
||||
int l = -1;
|
||||
if (PyString_Check(p)) l = PyString_Size(p);
|
||||
if (l < 0 || l > 1) {
|
||||
PyErr_SetString(PyExc_TypeError, "expected string of length 0 or 1");
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
if (l == 0) return '\0';
|
||||
return PyString_AsString(p)[0];
|
||||
}
|
||||
|
||||
PyObject* to_python(unsigned char i)
|
||||
{
|
||||
return integer_to_python(i);
|
||||
|
||||
@@ -5,6 +5,9 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// 04 Mar 01 Use PyObject_INIT() instead of trying to hand-initialize (David Abrahams)
|
||||
|
||||
#include <boost/python/detail/extension_class.hpp>
|
||||
#include <cstring>
|
||||
@@ -46,24 +49,19 @@ BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
|
||||
namespace boost { namespace python {
|
||||
|
||||
namespace detail {
|
||||
tuple standard_coerce(ref l, ref r)
|
||||
{
|
||||
// Introduced sequence points for exception-safety.
|
||||
ref first(detail::operator_dispatcher::create(l, l));
|
||||
|
||||
ref second(r->ob_type == &detail::operator_dispatcher::type_obj
|
||||
? r
|
||||
: ref(detail::operator_dispatcher::create(r, ref())));
|
||||
|
||||
tuple extension_class_coerce(ref l, ref r)
|
||||
{
|
||||
// Introduced sequence points for exception-safety.
|
||||
ref first(operator_dispatcher::create(l, l));
|
||||
ref second;
|
||||
|
||||
if(r->ob_type == &operator_dispatcher::type_obj)
|
||||
{
|
||||
second = r;
|
||||
}
|
||||
else
|
||||
{
|
||||
second = ref(operator_dispatcher::create(r, ref()));
|
||||
}
|
||||
return boost::python::tuple(first, second);
|
||||
}
|
||||
return tuple(first, second);
|
||||
}
|
||||
|
||||
namespace detail {
|
||||
|
||||
enum { unwrap_exception_code = -1000 };
|
||||
|
||||
@@ -451,8 +449,8 @@ operator_dispatcher::operator_dispatcher(const ref& o, const ref& s)
|
||||
: m_object(o), m_self(s), m_free_list_link(0)
|
||||
|
||||
{
|
||||
ob_refcnt = 1;
|
||||
ob_type = &type_obj;
|
||||
PyObject* self = this;
|
||||
PyObject_INIT(self, &type_obj);
|
||||
}
|
||||
|
||||
operator_dispatcher*
|
||||
@@ -465,7 +463,9 @@ operator_dispatcher::create(const ref& object, const ref& self)
|
||||
free_list = result->m_free_list_link;
|
||||
result->m_object = object;
|
||||
result->m_self = self;
|
||||
Py_INCREF(result);
|
||||
|
||||
PyObject* result_as_pyobject = result;
|
||||
PyObject_INIT(result_as_pyobject, &type_obj);
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
@@ -5,6 +5,9 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
//
|
||||
// Revision History:
|
||||
// Mar 01 01 Use PyObject_INIT() instead of trying to hand-initialize (David Abrahams)
|
||||
|
||||
#include <boost/python/detail/functions.hpp>
|
||||
#include <boost/python/detail/types.hpp>
|
||||
@@ -97,19 +100,6 @@ PyObject* function::call(PyObject* args, PyObject* keywords) const
|
||||
return 0;
|
||||
}
|
||||
|
||||
bound_function* bound_function::create(const ref& target, const ref& fn)
|
||||
{
|
||||
bound_function* const result = free_list;
|
||||
if (result == 0)
|
||||
return new bound_function(target, fn);
|
||||
|
||||
free_list = result->m_free_list_link;
|
||||
result->m_target = target;
|
||||
result->m_unbound_function = fn;
|
||||
Py_INCREF(result);
|
||||
return result;
|
||||
}
|
||||
|
||||
// The instance class whose obj represents the type of bound_function
|
||||
// objects in Python. bound_functions must be GetAttrable so the __doc__
|
||||
// attribute of built-in Python functions can be accessed when bound.
|
||||
@@ -123,6 +113,21 @@ private: // type_object<bound_function> hook override
|
||||
void dealloc(bound_function*) const;
|
||||
};
|
||||
|
||||
bound_function* bound_function::create(const ref& target, const ref& fn)
|
||||
{
|
||||
bound_function* const result = free_list;
|
||||
if (result == 0)
|
||||
return new bound_function(target, fn);
|
||||
|
||||
free_list = result->m_free_list_link;
|
||||
result->m_target = target;
|
||||
result->m_unbound_function = fn;
|
||||
|
||||
PyObject* self = result;
|
||||
PyObject_INIT(self, type_object::instance());
|
||||
return result;
|
||||
}
|
||||
|
||||
bound_function::bound_function(const ref& target, const ref& fn)
|
||||
: python_object(type_object::instance()),
|
||||
m_target(target),
|
||||
|
||||
@@ -6,12 +6,12 @@ from gen_singleton import *
|
||||
from gen_extclass import *
|
||||
|
||||
def gen_all(args):
|
||||
open('callback.h', 'w').write(gen_callback(args))
|
||||
open('caller.h', 'w').write(gen_caller(args))
|
||||
open('init_function.h', 'w').write(gen_init_function(args))
|
||||
open('signatures.h', 'w').write(gen_signatures(args))
|
||||
open('instance.h', 'w').write(gen_singleton(args))
|
||||
open('extclass.h', 'w').write(gen_extclass(args))
|
||||
open('callback.hpp', 'w').write(gen_callback(args))
|
||||
open('caller.hpp', 'w').write(gen_caller(args))
|
||||
open('init_function.hpp', 'w').write(gen_init_function(args))
|
||||
open('signatures.hpp', 'w').write(gen_signatures(args))
|
||||
open('singleton.hpp', 'w').write(gen_singleton(args))
|
||||
open('extension_class.hpp', 'w').write(gen_extclass(args))
|
||||
|
||||
if __name__ == '__main__':
|
||||
import sys
|
||||
|
||||
@@ -14,6 +14,10 @@ def gen_extclass(args):
|
||||
// This file automatically generated for %d-argument constructors by
|
||||
// gen_extclass.python
|
||||
|
||||
// Revision History:
|
||||
// 05 Mar 01 Fixed a bug which prevented auto_ptr values from being converted
|
||||
// to_python (Dave Abrahams)
|
||||
|
||||
#ifndef EXTENSION_CLASS_DWA052000_H_
|
||||
# define EXTENSION_CLASS_DWA052000_H_
|
||||
|
||||
@@ -27,6 +31,7 @@ def gen_extclass(args):
|
||||
# include <boost/python/detail/init_function.hpp>
|
||||
# include <typeinfo>
|
||||
# include <boost/smart_ptr.hpp>
|
||||
# include <boost/type_traits.hpp>
|
||||
|
||||
namespace boost { namespace python {
|
||||
|
||||
@@ -66,7 +71,7 @@ T* check_non_null(T* p)
|
||||
return p;
|
||||
}
|
||||
|
||||
template <class T> class held_instance;
|
||||
template <class Held> class held_instance;
|
||||
|
||||
typedef void* (*conversion_function_ptr)(void*);
|
||||
|
||||
@@ -138,6 +143,26 @@ class class_registry
|
||||
static std::vector<derived_class_info> static_derived_class_info;
|
||||
};
|
||||
|
||||
template <bool is_pointer>
|
||||
struct is_null_helper
|
||||
{
|
||||
template <class Ptr>
|
||||
static bool test(Ptr x) { return x == 0; }
|
||||
};
|
||||
|
||||
template <>
|
||||
struct is_null_helper<false>
|
||||
{
|
||||
template <class Ptr>
|
||||
static bool test(const Ptr& x) { return x.get() == 0; }
|
||||
};
|
||||
|
||||
template <class Ptr>
|
||||
bool is_null(const Ptr& x)
|
||||
{
|
||||
return is_null_helper<(is_pointer<Ptr>::value)>::test(x);
|
||||
}
|
||||
|
||||
}}} // namespace boost::python::detail
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
@@ -183,9 +208,9 @@ class python_extension_class_converters
|
||||
new boost::python::detail::instance_value_holder<T,U>(result.get(), x)));
|
||||
return result.release();
|
||||
}
|
||||
|
||||
// Convert to T*
|
||||
friend T* from_python(PyObject* obj, boost::python::type<T*>)
|
||||
|
||||
friend
|
||||
T* non_null_from_python(PyObject* obj, boost::python::type<T*>)
|
||||
{
|
||||
// downcast to an extension_instance, then find the actual T
|
||||
boost::python::detail::extension_instance* self = boost::python::detail::get_extension_instance(obj);
|
||||
@@ -206,9 +231,18 @@ class python_extension_class_converters
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
|
||||
// Convert to PtrType, where PtrType can be dereferenced to obtain a T.
|
||||
// Convert to T*
|
||||
friend T* from_python(PyObject* obj, boost::python::type<T*>)
|
||||
{
|
||||
if (obj == Py_None)
|
||||
return 0;
|
||||
else
|
||||
return non_null_from_python(obj, boost::python::type<T*>());
|
||||
}
|
||||
|
||||
// Extract from obj a mutable reference to the PtrType object which is holding a T.
|
||||
template <class PtrType>
|
||||
static PtrType& ptr_from_python(PyObject* obj, boost::python::type<PtrType>)
|
||||
static PtrType& smart_ptr_reference(PyObject* obj, boost::python::type<PtrType>)
|
||||
{
|
||||
// downcast to an extension_instance, then find the actual T
|
||||
boost::python::detail::extension_instance* self = boost::python::detail::get_extension_instance(obj);
|
||||
@@ -225,9 +259,29 @@ class python_extension_class_converters
|
||||
throw boost::python::argument_error();
|
||||
}
|
||||
|
||||
// Extract from obj a reference to the PtrType object which is holding a
|
||||
// T. If it weren't for auto_ptr, it would be a constant reference. Do not
|
||||
// modify the referent except by copying an auto_ptr! If obj is None, the
|
||||
// reference denotes a default-constructed PtrType
|
||||
template <class PtrType>
|
||||
static PyObject* ptr_to_python(PtrType x)
|
||||
static PtrType& smart_ptr_value(PyObject* obj, boost::python::type<PtrType>)
|
||||
{
|
||||
if (obj == Py_None)
|
||||
{
|
||||
static PtrType null_ptr;
|
||||
return null_ptr;
|
||||
}
|
||||
return smart_ptr_reference(obj, boost::python::type<PtrType>());
|
||||
}
|
||||
|
||||
template <class PtrType>
|
||||
static PyObject* smart_ptr_to_python(PtrType x)
|
||||
{
|
||||
if (boost::python::detail::is_null(x))
|
||||
{
|
||||
return boost::python::detail::none();
|
||||
}
|
||||
|
||||
boost::python::reference<boost::python::detail::extension_instance> result(create_instance());
|
||||
result->add_implementation(
|
||||
std::auto_ptr<boost::python::detail::instance_holder_base>(
|
||||
@@ -259,7 +313,7 @@ class python_extension_class_converters
|
||||
|
||||
// Convert to T&
|
||||
friend T& from_python(PyObject* p, boost::python::type<T&>)
|
||||
{ return *boost::python::detail::check_non_null(from_python(p, boost::python::type<T*>())); }
|
||||
{ return *boost::python::detail::check_non_null(non_null_from_python(p, boost::python::type<T*>())); }
|
||||
|
||||
// Convert to const T&
|
||||
friend const T& from_python(PyObject* p, boost::python::type<const T&>)
|
||||
@@ -270,28 +324,28 @@ class python_extension_class_converters
|
||||
{ return from_python(p, boost::python::type<T&>()); }
|
||||
|
||||
friend std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<std::auto_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
{ return smart_ptr_reference(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<std::auto_ptr<T> >)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
friend std::auto_ptr<T> from_python(PyObject* p, boost::python::type<std::auto_ptr<T> >)
|
||||
{ return smart_ptr_value(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend const std::auto_ptr<T>& from_python(PyObject* p, boost::python::type<const std::auto_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
{ return smart_ptr_value(p, boost::python::type<std::auto_ptr<T> >()); }
|
||||
|
||||
friend PyObject* to_python(std::auto_ptr<T> x)
|
||||
{ return ptr_to_python(x); }
|
||||
{ return smart_ptr_to_python(x); }
|
||||
|
||||
friend boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
{ return smart_ptr_reference(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T> >)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
friend const boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<boost::shared_ptr<T> >)
|
||||
{ return smart_ptr_value(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend const boost::shared_ptr<T>& from_python(PyObject* p, boost::python::type<const boost::shared_ptr<T>&>)
|
||||
{ return ptr_from_python(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
{ return smart_ptr_value(p, boost::python::type<boost::shared_ptr<T> >()); }
|
||||
|
||||
friend PyObject* to_python(boost::shared_ptr<T> x)
|
||||
{ return ptr_to_python(x); }
|
||||
{ return smart_ptr_to_python(x); }
|
||||
};
|
||||
|
||||
// Convert T to_python, instantiated on demand and only if there isn't a
|
||||
@@ -613,15 +667,15 @@ class extension_class
|
||||
|
||||
// A simple wrapper over a T which allows us to use extension_class<T> with a
|
||||
// single template parameter only. See extension_class<T>, above.
|
||||
template <class T>
|
||||
class held_instance : public T
|
||||
template <class Held>
|
||||
class held_instance : public Held
|
||||
{
|
||||
// There are no member functions: we want to avoid inadvertently overriding
|
||||
// any virtual functions in T.
|
||||
// any virtual functions in Held.
|
||||
public:"""
|
||||
+ gen_functions("""%{
|
||||
template <%(class A%n%:, %)>%}
|
||||
held_instance(PyObject*%(, A%n% a%n%)) : T(%(a%n%:, %)) {}""", args)
|
||||
held_instance(PyObject*%(, A%n% a%n%)) : Held(%(a%n%:, %)) {}""", args)
|
||||
+ """
|
||||
};
|
||||
|
||||
@@ -707,8 +761,6 @@ class extension_instance : public instance
|
||||
// Template function implementations
|
||||
//
|
||||
|
||||
tuple extension_class_coerce(ref l, ref r);
|
||||
|
||||
template <class T, class U>
|
||||
extension_class<T, U>::extension_class()
|
||||
: extension_class_base(typeid(T).name())
|
||||
@@ -729,7 +781,7 @@ void extension_class<T, U>::def_standard_coerce()
|
||||
ref coerce_fct = dict().get_item(string("__coerce__"));
|
||||
|
||||
if(coerce_fct.get() == 0) // not yet defined
|
||||
this->def(&extension_class_coerce, "__coerce__");
|
||||
this->def(&standard_coerce, "__coerce__");
|
||||
}
|
||||
|
||||
template <class T, class U>
|
||||
|
||||
@@ -14,10 +14,15 @@ namespace {
|
||||
ref name_holder;
|
||||
}
|
||||
|
||||
bool module_builder::initializing()
|
||||
{
|
||||
return name_holder.get() != 0;
|
||||
}
|
||||
|
||||
string module_builder::name()
|
||||
{
|
||||
// If this fails, you haven't created a module_builder object
|
||||
assert(name_holder.get() != 0);
|
||||
assert(initializing());
|
||||
return string(name_holder);
|
||||
}
|
||||
|
||||
@@ -29,6 +34,11 @@ module_builder::module_builder(const char* name)
|
||||
name_holder = ref(PyObject_GetAttrString(m_module, const_cast<char*>("__name__")));
|
||||
}
|
||||
|
||||
module_builder::~module_builder()
|
||||
{
|
||||
name_holder.reset();
|
||||
}
|
||||
|
||||
void
|
||||
module_builder::add(detail::function* x, const char* name)
|
||||
{
|
||||
|
||||
@@ -5,13 +5,17 @@
|
||||
//
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
|
||||
// Revision History:
|
||||
// 04 Mar 01 Changed name of extension module so it would work with DebugPython,
|
||||
// eliminated useless test that aggravated MSVC (David Abrahams)
|
||||
#include "comprehensive.hpp"
|
||||
#include <boost/python/class_builder.hpp>
|
||||
#include <stdio.h> // used for portability on broken compilers
|
||||
#include <math.h> // for pow()
|
||||
#include <boost/rational.hpp>
|
||||
|
||||
namespace extclass_demo {
|
||||
namespace bpl_test {
|
||||
|
||||
FooCallback::FooCallback(PyObject* self, int x)
|
||||
: Foo(x), m_self(self)
|
||||
@@ -238,6 +242,23 @@ boost::shared_ptr<Foo> Baz::create_foo()
|
||||
return boost::shared_ptr<Foo>(new DerivedFromFoo(0));
|
||||
}
|
||||
|
||||
// Used to check conversion to None
|
||||
boost::shared_ptr<Foo> foo_factory(bool create)
|
||||
{
|
||||
return boost::shared_ptr<Foo>(create ? new DerivedFromFoo(0) : 0);
|
||||
}
|
||||
|
||||
// Used to check conversion from None
|
||||
bool foo_ptr_is_null(Foo* p)
|
||||
{
|
||||
return p == 0;
|
||||
}
|
||||
|
||||
bool foo_shared_ptr_is_null(boost::shared_ptr<Foo> p)
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
// We can accept smart pointer parameters
|
||||
int Baz::get_foo_value(boost::shared_ptr<Foo> foo)
|
||||
{
|
||||
@@ -404,7 +425,7 @@ static int testUpcast(Base* b)
|
||||
|
||||
static std::auto_ptr<Base> derived1Factory(int i)
|
||||
{
|
||||
return std::auto_ptr<Base>(new Derived1(i));
|
||||
return std::auto_ptr<Base>(i < 0 ? 0 : new Derived1(i));
|
||||
}
|
||||
|
||||
static std::auto_ptr<Base> derived2Factory(int i)
|
||||
@@ -714,12 +735,14 @@ const Record* get_record()
|
||||
return &v;
|
||||
}
|
||||
|
||||
template class boost::python::class_builder<Record>; // explicitly instantiate
|
||||
} // namespace bpl_test
|
||||
|
||||
} // namespace extclass_demo
|
||||
namespace boost { namespace python {
|
||||
template class class_builder<bpl_test::Record>; // explicitly instantiate
|
||||
}} // namespace boost::python
|
||||
|
||||
BOOST_PYTHON_BEGIN_CONVERSION_NAMESPACE
|
||||
inline PyObject* to_python(const extclass_demo::Record* p)
|
||||
inline PyObject* to_python(const bpl_test::Record* p)
|
||||
{
|
||||
return to_python(*p);
|
||||
}
|
||||
@@ -731,7 +754,7 @@ BOOST_PYTHON_END_CONVERSION_NAMESPACE
|
||||
/* */
|
||||
/************************************************************/
|
||||
|
||||
namespace extclass_demo {
|
||||
namespace bpl_test {
|
||||
|
||||
struct EnumOwner
|
||||
{
|
||||
@@ -753,8 +776,8 @@ struct EnumOwner
|
||||
}
|
||||
|
||||
namespace boost { namespace python {
|
||||
template class enum_as_int_converters<extclass_demo::EnumOwner::enum_type>;
|
||||
using extclass_demo::pow;
|
||||
template class enum_as_int_converters<bpl_test::EnumOwner::enum_type>;
|
||||
using bpl_test::pow;
|
||||
}} // namespace boost::python
|
||||
|
||||
// This is just a way of getting the converters instantiated
|
||||
@@ -763,7 +786,7 @@ namespace boost { namespace python {
|
||||
//{
|
||||
//};
|
||||
|
||||
namespace extclass_demo {
|
||||
namespace bpl_test {
|
||||
|
||||
/************************************************************/
|
||||
/* */
|
||||
@@ -813,6 +836,32 @@ namespace extclass_demo {
|
||||
w.set_secret_number(number);
|
||||
}
|
||||
|
||||
// Test plain char converters.
|
||||
char get_plain_char() { return 'x'; }
|
||||
std::string use_plain_char(char c) { return std::string(3, c); }
|
||||
|
||||
// This doesn't test anything but the compiler, since it has the same signature as the above.
|
||||
// Since MSVC is broken and gets the signature wrong, we'll skip it.
|
||||
std::string use_const_plain_char(
|
||||
#ifndef BOOST_MSVC6_OR_EARLIER
|
||||
const
|
||||
#endif
|
||||
char c) { return std::string(5, c); }
|
||||
|
||||
// Test std::complex<double> converters.
|
||||
std::complex<double> dpolar(double rho, double theta) {
|
||||
return std::polar(rho, theta);
|
||||
}
|
||||
double dreal(const std::complex<double>& c) { return c.real(); }
|
||||
double dimag(std::complex<double> c) { return c.imag(); }
|
||||
|
||||
// Test std::complex<float> converters.
|
||||
std::complex<float> fpolar(float rho, float theta) {
|
||||
return std::polar(rho, theta);
|
||||
}
|
||||
double freal(const std::complex<float>& c) { return c.real(); }
|
||||
double fimag(std::complex<float> c) { return c.imag(); }
|
||||
|
||||
/************************************************************/
|
||||
/* */
|
||||
/* init the module */
|
||||
@@ -1034,9 +1083,29 @@ void init_module(boost::python::module_builder& m)
|
||||
world_class.def(world_getinitargs, "__getinitargs__");
|
||||
world_class.def(world_getstate, "__getstate__");
|
||||
world_class.def(world_setstate, "__setstate__");
|
||||
|
||||
// Test plain char converters.
|
||||
m.def(get_plain_char, "get_plain_char");
|
||||
m.def(use_plain_char, "use_plain_char");
|
||||
m.def(use_const_plain_char, "use_const_plain_char");
|
||||
|
||||
// Test std::complex<double> converters.
|
||||
m.def(dpolar, "dpolar");
|
||||
m.def(dreal, "dreal");
|
||||
m.def(dimag, "dimag");
|
||||
|
||||
// Test std::complex<float> converters.
|
||||
m.def(fpolar, "fpolar");
|
||||
m.def(freal, "freal");
|
||||
m.def(fimag, "fimag");
|
||||
|
||||
// Test new null-pointer<->None conversions
|
||||
m.def(foo_factory, "foo_factory");
|
||||
m.def(foo_ptr_is_null, "foo_ptr_is_null");
|
||||
m.def(foo_shared_ptr_is_null, "foo_shared_ptr_is_null");
|
||||
}
|
||||
|
||||
PyObject* raw(boost::python::tuple const& args, boost::python::dictionary const& keywords)
|
||||
PyObject* raw(const boost::python::tuple& args, const boost::python::dictionary& keywords)
|
||||
{
|
||||
if(args.size() != 2 || keywords.size() != 2)
|
||||
{
|
||||
@@ -1055,21 +1124,17 @@ PyObject* raw(boost::python::tuple const& args, boost::python::dictionary const&
|
||||
|
||||
void init_module()
|
||||
{
|
||||
boost::python::module_builder demo("demo");
|
||||
init_module(demo);
|
||||
boost::python::module_builder boost_python_test("boost_python_test");
|
||||
init_module(boost_python_test);
|
||||
|
||||
// Just for giggles, add a raw metaclass.
|
||||
demo.add(new boost::python::meta_class<boost::python::instance>);
|
||||
boost_python_test.add(new boost::python::meta_class<boost::python::instance>);
|
||||
}
|
||||
|
||||
extern "C"
|
||||
#ifdef _WIN32
|
||||
__declspec(dllexport)
|
||||
#endif
|
||||
void initdemo()
|
||||
BOOST_PYTHON_MODULE_INIT(boost_python_test)
|
||||
{
|
||||
try {
|
||||
extclass_demo::init_module();
|
||||
bpl_test::init_module();
|
||||
}
|
||||
catch(...) {
|
||||
boost::python::handle_exception();
|
||||
@@ -1083,7 +1148,7 @@ CompareIntPairPythonClass::CompareIntPairPythonClass(boost::python::module_build
|
||||
def(&CompareIntPair::operator(), "__call__");
|
||||
}
|
||||
|
||||
} // namespace extclass_demo
|
||||
} // namespace bpl_test
|
||||
|
||||
|
||||
#if defined(_WIN32)
|
||||
@@ -1124,7 +1189,7 @@ BOOL WINAPI DllMain(
|
||||
switch(fdwReason)
|
||||
{
|
||||
case DLL_PROCESS_DETACH:
|
||||
assert(extclass_demo::total_Ints == 0);
|
||||
assert(bpl_test::total_Ints == 0);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
@@ -6,8 +6,8 @@
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
|
||||
#ifndef EXTCLASS_DEMO_DWA052200_H_
|
||||
# define EXTCLASS_DEMO_DWA052200_H_
|
||||
#ifndef BPL_TEST_DWA052200_H_
|
||||
# define BPL_TEST_DWA052200_H_
|
||||
//
|
||||
// Example code demonstrating extension class usage
|
||||
//
|
||||
@@ -21,7 +21,7 @@
|
||||
# include <string>
|
||||
# include <map>
|
||||
|
||||
namespace extclass_demo {
|
||||
namespace bpl_test {
|
||||
|
||||
//
|
||||
// example: Foo, Bar, and Baz are C++ classes we want to wrap.
|
||||
@@ -226,6 +226,6 @@ struct CompareIntPairPythonClass
|
||||
CompareIntPairPythonClass(boost::python::module_builder&);
|
||||
};
|
||||
|
||||
} // namespace extclass_demo
|
||||
} // namespace bpl_test
|
||||
|
||||
#endif // EXTCLASS_DEMO_DWA052200_H_
|
||||
#endif // BPL_TEST_DWA052200_H_
|
||||
|
||||
@@ -7,6 +7,15 @@ r'''
|
||||
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
|
||||
// producing this work.
|
||||
|
||||
// Revision History:
|
||||
// 04 Mar 01 Changed name of extension module so it would work with DebugPython,
|
||||
// fixed exception message checking to work with Python 2.0
|
||||
// (Dave Abrahams)
|
||||
|
||||
Load up the extension module
|
||||
|
||||
>>> from boost_python_test import *
|
||||
|
||||
Automatic checking of the number and type of arguments. Foo's constructor takes
|
||||
a single long parameter.
|
||||
|
||||
@@ -17,9 +26,9 @@ a single long parameter.
|
||||
|
||||
>>> try: ext = Foo('foo')
|
||||
... except TypeError, err:
|
||||
... assert re.match(
|
||||
... '(illegal argument type for built-in operation)|(an integer is required)', str(err))
|
||||
... else: print 'no exception'
|
||||
... assert_integer_expected(err)
|
||||
... else:
|
||||
... print 'no exception'
|
||||
|
||||
>>> ext = Foo(1)
|
||||
|
||||
@@ -64,6 +73,21 @@ We can subclass Foo.
|
||||
>>> b.call_pure()
|
||||
'not pure anymore!'
|
||||
|
||||
None corresponds to a NULL pointer or smart pointer
|
||||
>>> f = foo_factory(1)
|
||||
>>> f.add_len('xxx')
|
||||
1000
|
||||
>>> foo_factory(0) is None
|
||||
1
|
||||
>>> foo_ptr_is_null(None)
|
||||
1
|
||||
>>> foo_ptr_is_null(f)
|
||||
0
|
||||
>>> foo_shared_ptr_is_null(None)
|
||||
1
|
||||
>>> foo_shared_ptr_is_null(f)
|
||||
0
|
||||
|
||||
If no __init__ function is defined, the one from the base class takes effect, just
|
||||
like in a Python class.
|
||||
|
||||
@@ -209,7 +233,7 @@ Polymorphism also works:
|
||||
Pickling tests:
|
||||
|
||||
>>> world.__module__
|
||||
'demo'
|
||||
'boost_python_test'
|
||||
>>> world.__safe_for_unpickling__
|
||||
1
|
||||
>>> world.__reduce__()
|
||||
@@ -239,6 +263,47 @@ Pickling tests:
|
||||
Hello from California! 42
|
||||
Hello from California! 0
|
||||
|
||||
Pickle safety measures:
|
||||
>>> r=Rational(3, 4)
|
||||
>>> r
|
||||
Rational(3, 4)
|
||||
>>> try: s=pickle.dumps(r)
|
||||
... except RuntimeError, err: print err[0]
|
||||
...
|
||||
Incomplete pickle support (__dict_defines_state__ not set)
|
||||
>>> class myrational(Rational):
|
||||
... __dict_defines_state__ = 1 # this is a lie but good enough for testing.
|
||||
...
|
||||
>>> r=myrational(3, 4)
|
||||
>>> r
|
||||
Rational(3, 4)
|
||||
>>> s=pickle.dumps(r)
|
||||
|
||||
>>> class myworld(world):
|
||||
... def __init__(self):
|
||||
... world.__init__(self, 'anywhere')
|
||||
... self.x = 1
|
||||
...
|
||||
>>> w = myworld()
|
||||
>>> w.greet()
|
||||
'Hello from anywhere!'
|
||||
>>> w.__dict__
|
||||
{'x': 1}
|
||||
>>> try: s=pickle.dumps(w)
|
||||
... except RuntimeError, err: print err[0]
|
||||
...
|
||||
Incomplete pickle support (__getstate_manages_dict__ not set)
|
||||
|
||||
>>> class myunsafeworld(myworld):
|
||||
... __getstate_manages_dict__ = 1 # this is a lie but good enough for testing.
|
||||
...
|
||||
>>> w = myunsafeworld()
|
||||
>>> w.greet()
|
||||
'Hello from anywhere!'
|
||||
>>> w.__dict__
|
||||
{'x': 1}
|
||||
>>> s=pickle.dumps(w)
|
||||
|
||||
Special member attributes. Tests courtesy of Barry Scott <barry@scottb.demon.co.uk>
|
||||
|
||||
>>> class DerivedFromFoo(Foo):
|
||||
@@ -656,10 +721,11 @@ Testing interaction between callbacks, base declarations, and overloading
|
||||
>>> c = CallbackTest()
|
||||
>>> c.testCallback(1)
|
||||
2
|
||||
>>> c.testCallback('foo')
|
||||
Traceback (innermost last):
|
||||
File "<stdin>", line 1, in ?
|
||||
TypeError: illegal argument type for built-in operation
|
||||
|
||||
>>> try: c.testCallback('foo')
|
||||
... except TypeError, err: assert_integer_expected(err)
|
||||
... else: print 'no exception'
|
||||
|
||||
>>> c.callback(1)
|
||||
2
|
||||
>>> c.callback('foo')
|
||||
@@ -678,10 +744,11 @@ Testing interaction between callbacks, base declarations, and overloading
|
||||
-1
|
||||
>>> r.callback('foo')
|
||||
'foo 1'
|
||||
>>> r.testCallback('foo')
|
||||
Traceback (innermost last):
|
||||
File "<stdin>", line 1, in ?
|
||||
TypeError: illegal argument type for built-in operation
|
||||
|
||||
>>> try: r.testCallback('foo')
|
||||
... except TypeError, err: assert_integer_expected(err)
|
||||
... else: print 'no exception'
|
||||
|
||||
>>> r.testCallback(1)
|
||||
-1
|
||||
>>> testCallback(r, 1)
|
||||
@@ -1070,9 +1137,49 @@ test methodologies for wrapping functions that return a pointer
|
||||
3
|
||||
>>> eo.second
|
||||
1
|
||||
'''
|
||||
|
||||
from demo import *
|
||||
======== test [plain] char converters ==============
|
||||
>>> get_plain_char()
|
||||
'x'
|
||||
>>> use_plain_char('a')
|
||||
'aaa'
|
||||
>>> use_const_plain_char('b')
|
||||
'bbbbb'
|
||||
|
||||
======== test std::complex converters ==============
|
||||
>>> c = dpolar(3, 5)
|
||||
>>> type(c)
|
||||
<type 'complex'>
|
||||
>>> '%.3g' % (dreal(c))
|
||||
'0.851'
|
||||
>>> '%.3g' % (dimag(c))
|
||||
'-2.88'
|
||||
>>> '%.3g' % (freal(c))
|
||||
'0.851'
|
||||
>>> '%.3g' % (fimag(c))
|
||||
'-2.88'
|
||||
>>> c = fpolar(7, 13)
|
||||
>>> type(c)
|
||||
<type 'complex'>
|
||||
>>> '%.3g' % (fimag(c))
|
||||
'2.94'
|
||||
>>> '%.3g' % (freal(c))
|
||||
'6.35'
|
||||
>>> '%.3g' % (dimag(c))
|
||||
'2.94'
|
||||
>>> '%.3g' % (dreal(c))
|
||||
'6.35'
|
||||
|
||||
'''
|
||||
#'
|
||||
|
||||
def assert_integer_expected(err):
|
||||
"""Handle a common error report which appears differently in Python 1.5.x and 2.0"""
|
||||
assert isinstance(err, TypeError)
|
||||
message = str(err)
|
||||
assert (message == "illegal argument type for built-in operation"
|
||||
or message == "an integer is required")
|
||||
|
||||
import string
|
||||
import re
|
||||
import sys
|
||||
@@ -1080,8 +1187,8 @@ import sys
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
sys.argv = args
|
||||
import doctest, test_extclass
|
||||
doctest.testmod(test_extclass)
|
||||
import doctest, comprehensive
|
||||
doctest.testmod(comprehensive)
|
||||
|
||||
if __name__ == '__main__':
|
||||
run()
|
||||
|
||||
1112
test/doctest.py
Normal file
1112
test/doctest.py
Normal file
File diff suppressed because it is too large
Load Diff
426
todo.txt
Normal file
426
todo.txt
Normal file
@@ -0,0 +1,426 @@
|
||||
Check for const reference parameters in all from_python functions in py.h, including implementations.
|
||||
Better python and C++ exception handling/error reporting.
|
||||
long long support
|
||||
use Python generic numeric coercion in from_python() for C++ numeric types
|
||||
Rename PyPtr to Reference.
|
||||
Report Cygwin linker memory issues
|
||||
__init__ stuff
|
||||
Make abstract classes non-instantiable (?)
|
||||
Call default __init__ functions automatically where applicable (?)
|
||||
Support for Python LONG types in Objects.h
|
||||
Throw TypeError after asserting when objects from objects.cpp detect a type mismatch.
|
||||
Figure out how to package everything as a shared library.
|
||||
Unicode string support
|
||||
Add read-only wrapper for __dict__ attribute
|
||||
Objects.h support for generic objects, Sequence objects, etc.
|
||||
empty() member functions for objects.hpp
|
||||
|
||||
Testing
|
||||
Python 2.0
|
||||
object revival in __del__
|
||||
More thorough tests of objects.h/cpp classes
|
||||
Better reference-count checking
|
||||
|
||||
Optimizations
|
||||
Remove one level of indirection on type objects (no vtbl?).
|
||||
Specializations of Caller<> for commmon combinations of argument types (?)
|
||||
Replace uses of XXXable classes
|
||||
Don't allocate instance __dict__ unless used.
|
||||
|
||||
|
||||
Documentation:
|
||||
|
||||
differences between Python classes and ExtensionClasses
|
||||
additional capabilities of ExtensionClasses
|
||||
slice adjustment
|
||||
|
||||
Why special attributes other than __doc__ and __name__ are immutable.
|
||||
|
||||
An example of the problems with the built-in Python classes.
|
||||
|
||||
>>> class A:
|
||||
... def __getattr__(self, name):
|
||||
... return 'A.__getattr__'
|
||||
...
|
||||
>>> class B(A): pass
|
||||
...
|
||||
>>> class C(B): pass
|
||||
...
|
||||
>>> C().x
|
||||
'A.__getattr__'
|
||||
>>> B.__bases__ = ()
|
||||
>>> C().x
|
||||
'A.__getattr__'
|
||||
|
||||
Smart pointers
|
||||
#ifndef PY_NO_INLINE_FRIENDS_IN_NAMESPACE
|
||||
namespace py {
|
||||
#endif
|
||||
|
||||
template <class T>
|
||||
struct VtkConverters
|
||||
{
|
||||
typedef py::PyExtensionClassConverters<T> Converters;
|
||||
|
||||
friend vtk_ptr<T>& from_python(PyObject* p, py::Type<vtk_ptr<T>&>)
|
||||
{ return Converters::ptr_from_python(p, py::Type<vtk_ptr<T> >()); }
|
||||
|
||||
friend vtk_ptr<T>& from_python(PyObject* p, py::Type<vtk_ptr<T> >)
|
||||
{ return Converters::ptr_from_python(p, py::Type<vtk_ptr<T> >()); }
|
||||
|
||||
friend const vtk_ptr<T>& from_python(PyObject* p, py::Type<const vtk_ptr<T>&>)
|
||||
{ return Converters::ptr_from_python(p, py::Type<vtk_ptr<T> >()); }
|
||||
|
||||
friend PyObject* to_python(vtk_ptr<T> x)
|
||||
{ return Converters::ptr_to_python(x); }
|
||||
};
|
||||
|
||||
#ifndef PY_NO_INLINE_FRIENDS_IN_NAMESPACE
|
||||
}
|
||||
#endif
|
||||
|
||||
template <class T>
|
||||
struct VtkWrapper : py::ClassWrapper<T>, py::VtkConverters<T>
|
||||
{
|
||||
typedef py::ClassWrapper<T> Base;
|
||||
VtkWrapper(Module& module, const char* name)
|
||||
: Base(module, name) {}
|
||||
};
|
||||
|
||||
exception handling
|
||||
|
||||
Advanced Topics:
|
||||
Advanced Type Conversion
|
||||
adding conversions for fundamental types
|
||||
generic conversions for template types (with partial spec).
|
||||
|
||||
Interacting with built-in Python objects and types from C++
|
||||
|
||||
dealing with non-const reference/pointer parameters
|
||||
|
||||
extending multiple-argument support using gen_all.py
|
||||
|
||||
|
||||
Fancy wrapping tricks
|
||||
templates
|
||||
Yes. If you look at the examples in extclass_demo.cpp you'll see that I have
|
||||
exposed several template instantiations (e.g. std::pair<int,int>) in Python.
|
||||
Keep in mind, however, that you can only expose a template instantiation,
|
||||
not a template. In other words, MyTemplate<Foo> can be exposed. MyTemplate
|
||||
itself cannot.
|
||||
|
||||
Well, that's not strictly true. Wow, this is more complicated to explain
|
||||
than I thought.
|
||||
You can't make an ExtensionClass<MyTemplate>, since after all MyTemplate is
|
||||
not a type. You can only expose a concrete type to Python.
|
||||
|
||||
What you *can* do (if your compiler supports partial ordering of function
|
||||
templates - MSVC is broken and does not) is to write appropriate
|
||||
from_python() and to_python() functions for converting a whole class of
|
||||
template instantiations to/from Python. That won't let you create an
|
||||
instance of MyTemplate<SomePythonType> from Python, but it will let you
|
||||
pass/return arbitrary MyTemplate<SomeCplusplusType> instances to/from your
|
||||
wrapped C++ functions.
|
||||
|
||||
template <class T>
|
||||
MyTemplate<T> from_python(PyObject* x, py::Type<MyTemplate<T> >)
|
||||
{
|
||||
// code to convert x into a MyTemplate<T>... that part is up to you
|
||||
}
|
||||
|
||||
template <class T>
|
||||
PyObject* from_python(const MyTemplate<T>&)
|
||||
{
|
||||
// code to convert MyTemplate<T> into a PyObject*... that part is up to
|
||||
you
|
||||
}
|
||||
|
||||
For example, you could use this to convert Python lists to/from
|
||||
std::vector<T> automatically.
|
||||
|
||||
Pointer return values
|
||||
|
||||
Case 1:
|
||||
|
||||
> I am now also able to wrap the problematic TextRecordIterator for Python.
|
||||
> However, one of its function compiles with this warning:
|
||||
>
|
||||
> d:\py_cpp/caller.h(33) : warning C4800: 'const class Record *const '
|
||||
> : forcing value to bool 'true' or 'false' (performance warning)
|
||||
> d:\py_cpp/functions.h(54) : see reference to function template
|
||||
> instantiation 'struct _object *__cdecl py::Caller::call(const class Record
|
||||
> *const (__thiscall TextRecordIterator::*)(void),struct _object *,struct
|
||||
> _object *)' being compiled
|
||||
>
|
||||
> If you look at the offending code, you'll see that we really do need to
|
||||
> get back that pointer:
|
||||
>
|
||||
> const Record* const TextRecordIterator::Next() {
|
||||
> if (fStatus != RecordIterator::SUCCESS) {
|
||||
> return 0;
|
||||
> } else {
|
||||
> return &fData;
|
||||
> }
|
||||
> }
|
||||
>
|
||||
> The point of the TextRecordIterator is to hand over one reord after
|
||||
> another. A bool wouldn't do us much good here :-)
|
||||
>
|
||||
> Do you have any suggestions for fixing this?
|
||||
|
||||
In general, py_cpp doesn't automatically convert pointer return values
|
||||
to_python because pointers have too many potential meanings. Is it an
|
||||
iterator? A pointer to a single element? An array? Is ownership being passed
|
||||
to Python or is the pointer really just a reference? If the latter, what
|
||||
happens when some C++ code deletes the referent. The only exception to this
|
||||
rule is const char*, since it has a generally accepted interpretation (could
|
||||
be trouble with some generic code, though!)
|
||||
|
||||
If you have wrapped the Record class, you could add this to namespace py:
|
||||
|
||||
PyObject* to_python(const Record* p) {
|
||||
return to_python(*p);
|
||||
}
|
||||
|
||||
Of course, this will cause the Record class to be copied. If you can't live
|
||||
with that (Record would have to be /really/ heavyweight to make this
|
||||
worthwhile), you can follow one of these dangerous approaches:
|
||||
|
||||
1. Use the technique I described with dangerous_array in
|
||||
http://www.egroups.com/message/boost/6196. You do not have to expose Record
|
||||
explicitly in this case. Instead the class you expose will be more of a
|
||||
Record_proxy
|
||||
|
||||
2. Wrap Record in the usual way, then add the following to namespace py:
|
||||
|
||||
PyObject* to_python(const Record* p)
|
||||
{
|
||||
return ExtensionClass<Record>::ptr_to_python(const_cast<Record*>(p));
|
||||
}
|
||||
|
||||
This will cause the Record* to be treated as though it were an owning smart
|
||||
pointer, even though it's not. Be sure you don't use the reference for
|
||||
anything from Python once the pointer becomes invalid, though. Don't worry
|
||||
too much about the const-correctness issue: Const-correctness is completely
|
||||
lost to Python anyway!
|
||||
|
||||
3. As above, but instead wrap const Record rather than plain Record. Then
|
||||
you can avoid the const_cast, but you obviously can't def() any non-const
|
||||
member functions of Record.
|
||||
|
||||
Case 2:
|
||||
|
||||
> I have yet another question. This is more a general wrapper question.
|
||||
> Let me say that there is a function that returns a float* which most
|
||||
> probably is an array. Similarly if I have a function that takes a
|
||||
> float* as an argument, what is the best way of wrapping this?
|
||||
|
||||
I think you have correctly perceived that it doesn't make sense for me to
|
||||
automatically convert all pointers, since the ownership semantics are so
|
||||
blurry.
|
||||
|
||||
> 1) If the array is small it makes sense to convert it to either a
|
||||
> tuple or list. What is the easiest way to do this?? I am looking
|
||||
> for a way that makes one write the least code. :)
|
||||
|
||||
How can you tell the length of the array from a single pointer?
|
||||
Once you've answered that question, you can expose a wrapper function which
|
||||
returns an instance of the py::Tuple or py::List class from objects.h. If
|
||||
you are using a List, for example, you could write something like this:
|
||||
|
||||
py::List wrap_f()
|
||||
{
|
||||
T* start = f();
|
||||
py::List x;
|
||||
for (T* p = start; p != start + length_constant; ++p)
|
||||
x.push_back(py::to_python(*p));
|
||||
return x;
|
||||
}
|
||||
|
||||
> 2) If the array is large it may not make sense to use a list/tuple
|
||||
> esp. if the values are used for computationally intense programs.
|
||||
|
||||
In this case you can do one of several somewhat dangerous things. Why
|
||||
dangerous? Because python can not control the lifetime of the data, so the
|
||||
data in the array may be destroyed or become invalid before the last
|
||||
reference to it disappears. The basic approach is to make a small C++ class
|
||||
which contains the pointer, and expose that:
|
||||
|
||||
// UNTESTED
|
||||
template <class T>
|
||||
struct dangerous_array
|
||||
{
|
||||
dangerous_array(T* start, T* end)
|
||||
: m_start(start), m_end(end) {}
|
||||
|
||||
// exposed as "__len__"
|
||||
std::size_t length() {
|
||||
return m_end - m_start;
|
||||
}
|
||||
|
||||
// exposed as "__getitem__"
|
||||
T get_item(std::size_t n) {
|
||||
check_range(n);
|
||||
return start[n];
|
||||
}
|
||||
|
||||
// exposed as "__setitem__" if the array is mutable
|
||||
void set_item(std::size_t n, const T& x) {
|
||||
check_range(n);
|
||||
start[n] = x;
|
||||
}
|
||||
private:
|
||||
void check_range(std::size_t n) {
|
||||
if (n >= m_end - m_start) {
|
||||
PyErr_SetString(PyExc_IndexError, "array index out of range");
|
||||
throw py::ErrorAlreadySet;
|
||||
}
|
||||
}
|
||||
T* m_start;
|
||||
T* m_end;
|
||||
};
|
||||
|
||||
A reasonably safe approach would be to make a wrapper function for each
|
||||
function that returns a T*, and expose that instead. If you're too lazy and
|
||||
you really like to live on the edge, though, you can write to_python(T*) in
|
||||
terms of to_python(const dangerous_array<T>&), and you'll automatically
|
||||
convert all T* return values to a wrapped dangerous_array.
|
||||
|
||||
> 3) For an arbitrary class "class_A", say, can py_cpp handle
|
||||
> references to class_A &instance, or class_A *instance?? i.e. will it
|
||||
> wrap function calls to such objects? This question is obviously
|
||||
> related to the earlier questions.
|
||||
|
||||
Yes, iff class_A has been exposed to python with a ClassWrapper<class_A>.
|
||||
See http://people.ne.mediaone.net/abrahams/downloads/under-the-hood.html for
|
||||
a few details.
|
||||
|
||||
raw C++ arrays
|
||||
You could expose a function like this one to get the desired effect:
|
||||
|
||||
#include <py_cpp/objects.h>
|
||||
void set_len(UnitCell& x, py::Tuple tuple)
|
||||
{
|
||||
double len[3];
|
||||
for (std::size_t i =0; i < 3; ++i)
|
||||
len[i] = py::from_python(tuple[i].get(), py::Type<double>());
|
||||
x.set_len(len);
|
||||
}
|
||||
|
||||
Types that are already wrapped by other libraries
|
||||
|
||||
It's not documented yet, but you should be able to use a raw PyObject* or a
|
||||
py::Ptr as one parameter to your C++ function. Then you can manipulate it as
|
||||
any other generic Python object.
|
||||
|
||||
Alternatively, If the NTL gives you a C/C++ interface, you can also write
|
||||
your own converter function:
|
||||
|
||||
some_ntl_type& from_python(PyObject* p, py::Type<some_NTL_type&>)
|
||||
{
|
||||
// an Example implementation. Basically, you need
|
||||
// to extract the NTL type from the PyObject*.
|
||||
if (p->ob_type != NTL_long_type) {
|
||||
PyErr_SetString(PyExc_TypeErr, "NTL long required");
|
||||
throw py::ArgumentError();
|
||||
}
|
||||
return *static_cast<some_NTL_type*>(p);
|
||||
}
|
||||
|
||||
then the C++ functions you're wrapping can take a some_NTL_type& parameter
|
||||
directly.
|
||||
|
||||
"Thin converting wrappers" for constructors
|
||||
|
||||
hijack some of the functionality
|
||||
described in the section on Overridable Virtual Functions (even though you
|
||||
don't have any virtual functions). I suggest this workaround:
|
||||
|
||||
struct UnitCellWrapper : UnitCell
|
||||
{
|
||||
UnitCellWrapper(PyObject* self, py::Tuple x, py::Tuple y)
|
||||
: UnitCell(from_python(x[1], py::Type<double>()),
|
||||
from_python(x[2], py::Type<double>()),
|
||||
from_python(x[3], py::Type<double>()),
|
||||
from_python(y[1], py::Type<double>()),
|
||||
from_python(y[2], py::Type<double>()),
|
||||
from_python(y[3], py::Type<double>()))
|
||||
{}
|
||||
}
|
||||
|
||||
py::ClassWrapper<UnitCell, UnitCellWrapper> unit_cell_class;
|
||||
unit_cell_class.def(py::Constructor<py::Tuple, py::Tuple>());
|
||||
...
|
||||
|
||||
returning references to wrapped objects
|
||||
|
||||
the importance of declaration order of ClassWrappers/ExtensionInstances
|
||||
|
||||
out parameters and non-const pointers
|
||||
|
||||
Calling back into Python:
|
||||
// caveat: UNTESTED!
|
||||
#include <py_cpp/pyptr.h>
|
||||
#include <py_cpp/callback.h>
|
||||
#include <py_cpp/py.h>
|
||||
#include <Python.h>
|
||||
int main()
|
||||
{
|
||||
try {
|
||||
py::Ptr module(PyImport_ImportModule("weapons"));
|
||||
const int strength = 10;
|
||||
const char* manufacturer = "Vordon Empire";
|
||||
py::Ptr a_blaster(py::Callback<py::Ptr>::call_method(
|
||||
module.get(), "Blaster", strength, manufacturer));
|
||||
py::Callback<void>::call_method(a_blaster.get(), "Fire");
|
||||
int old_strength = py::Callback<int>::call_method(a_blaster.get(), "get_strength");
|
||||
py::Callback<void>::call_method(a_blaster.get(), "set_strength", 5);
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
Miscellaneous
|
||||
About the vc6 project and the debug build
|
||||
About doctest.py
|
||||
|
||||
Boost remarks:
|
||||
|
||||
> > One of us is completely nuts ;->. How can I move the test
|
||||
> > (is_prefix(enablers[i].name + 2, name + 2)) outside the loop if it
|
||||
depends
|
||||
> > on the loop index, i?
|
||||
> >
|
||||
> name += 2;
|
||||
> for()
|
||||
> {
|
||||
> if (is_prefix(enablers[i].name + 2, name))
|
||||
> }
|
||||
|
||||
I see now. I guess I should stop pussyfooting and either go for optimization
|
||||
or clarity here, eh?
|
||||
|
||||
------
|
||||
|
||||
> Re: Dict
|
||||
> Why abbreviate this? Code is read 5 or 6 times for every time its
|
||||
> written. The few extra characters don't affect compile time or program
|
||||
> speed. It's part of my personal goal of write what you mean, name them
|
||||
what
|
||||
> they are.
|
||||
|
||||
I completely agree. Abbrevs rub me the wrong way, 2 ;->
|
||||
|
||||
-------
|
||||
|
||||
|
||||
|
||||
|
||||
Later:
|
||||
keyword and varargs?
|
||||
Put explicit Type<> arguments at the beginnings of overloads, to make them look more like template instance specifications.
|
||||
|
||||
Known bugs
|
||||
can't handle 'const void' return values
|
||||
Who returns 'const void'? I did it once, by mistake ;)
|
||||
Reference in New Issue
Block a user