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- Some small memory improvements

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[SVN r18459]
This commit is contained in:
Bruno da Silva de Oliveira
2003-05-20 01:35:13 +00:00
parent c1dbd52de1
commit 06f454e1d3
6 changed files with 98 additions and 26 deletions
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20
pyste/src/CppParser.py
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@@ -38,15 +38,17 @@ class CppParser:
return ' '.join(defines)
def UpdateCache(self, include, tail, declarations, header):
self._cache.append((include, tail, declarations, header))
def UpdateCache(self, include, tail, decl_name, declarations, header):
self._cache.append((include, tail, decl_name, declarations, header))
if len(self._cache) > self._CACHE_SIZE:
self._cache.pop(0)
def Cache(self, include, tail):
for cache_include, cache_tail, declarations, header in self._cache:
if cache_include == include and cache_tail == tail:
def Cache(self, include, tail, decl_name):
for cache_include, cache_tail, cache_decl, declarations, header in self._cache:
if cache_include == include \
and cache_tail == tail \
and cache_decl == decl_name:
return declarations, header
return None
@@ -62,7 +64,7 @@ class CppParser:
raise RuntimeError, 'Header file "%s" not found!' % name
def parse(self, include, tail=None):
def parse(self, include, tail=None, decl_name=None):
'''Parses the given filename, and returns (declaration, header). The
header returned is normally the same as the given to this method,
except if tail is not None: in this case, the header is copied to a temp
@@ -70,7 +72,7 @@ class CppParser:
This temp filename is then returned.
'''
# check if this header was already parsed
cached = self.Cache(include, tail)
cached = self.Cache(include, tail, decl_name)
if cached:
return cached
filename = self.FindFileName(include)
@@ -92,13 +94,15 @@ class CppParser:
# call gccxml
cmd = 'gccxml %s %s %s -fxml=%s' \
% (includes, defines, infilename, xmlfile)
if decl_name is not None:
cmd += ' "-fxml-start=%s"' % decl_name
status = os.system(cmd)
if status != 0 or not os.path.isfile(xmlfile):
raise CppParserError, 'Error executing gccxml'
# parse the resulting xml
declarations = ParseDeclarations(xmlfile)
# cache the results
self.UpdateCache(include, tail, declarations, infilename)
self.UpdateCache(include, tail, decl_name, declarations, infilename)
# return the declarations
return declarations, infilename
finally: