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Overloaded constructors reduce the number of type_info objects we should have to link in.

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Support for multiple-inheritance from Python types and Extension classes.


[SVN r8050]
This commit is contained in:
Dave Abrahams
2000-10-28 21:51:58 +00:00
parent 70045ce8f3
commit 582b8a5646
1 changed files with 43 additions and 10 deletions
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53
newtypes.h
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@@ -27,9 +27,11 @@
# include "base_object.h"
# include <typeinfo>
# include <vector>
# include <cassert>
namespace py {
class String;
class InstanceHolderBase;
class TypeObjectBase : public PythonType
@@ -116,12 +118,19 @@ class TypeObject : public TypeObjectBase
{
public:
typedef T Instance;
TypeObject(PyTypeObject* type_type, const char* name = 0)
: TypeObjectBase(type_type)
{
this->tp_name = const_cast<char*>(name ? name : typeid(Instance).name());
}
TypeObject(PyTypeObject* type_type, const char* name)
: Base(type_type)
{
assert(name != 0);
this->tp_name = const_cast<char*>(name);
}
TypeObject(PyTypeObject* type_type)
: Base(type_type)
{
this->tp_name = const_cast<char*>(typeid(Instance).name());
}
private: // Overridable behaviors.
// Called when the reference count goes to zero. The default implementation
@@ -142,7 +151,8 @@ class Callable : public Base
public:
typedef Callable Properties; // Convenience for derived class construction
typedef typename Base::Instance Instance;
Callable(PyTypeObject* type_type, const char* name = 0);
Callable(PyTypeObject* type_type, const char* name);
Callable(PyTypeObject* type_type);
private:
PyObject* instance_call(PyObject* instance, PyObject* args, PyObject* kw) const;
};
@@ -153,7 +163,8 @@ class Getattrable : public Base
public:
typedef Getattrable Properties; // Convenience for derived class construction
typedef typename Base::Instance Instance;
Getattrable(PyTypeObject* type_type, const char* name = 0);
Getattrable(PyTypeObject* type_type, const char* name);
Getattrable(PyTypeObject* type_type);
private:
PyObject* instance_getattr(PyObject* instance, const char* name) const;
};
@@ -164,7 +175,8 @@ class Setattrable : public Base
public:
typedef Setattrable Properties; // Convenience for derived class construction
typedef typename Base::Instance Instance;
Setattrable(PyTypeObject* type_type, const char* name = 0);
Setattrable(PyTypeObject* type_type, const char* name);
Setattrable(PyTypeObject* type_type);
private:
int instance_setattr(PyObject* instance, const char* name, PyObject* value) const;
};
@@ -194,6 +206,13 @@ Callable<Base>::Callable(PyTypeObject* type_type, const char* name)
this->enable(call);
}
template <class Base>
Callable<Base>::Callable(PyTypeObject* type_type)
: Base(type_type)
{
this->enable(call);
}
template <class Base>
PyObject* Callable<Base>::instance_call(PyObject* instance, PyObject* args, PyObject* kw) const
{
@@ -208,6 +227,13 @@ Getattrable<Base>::Getattrable(PyTypeObject* type_type, const char* name)
this->enable(getattr);
}
template <class Base>
Getattrable<Base>::Getattrable(PyTypeObject* type_type)
: Base(type_type)
{
this->enable(getattr);
}
template <class Base>
PyObject* Getattrable<Base>::instance_getattr(PyObject* instance, const char* name) const
{
@@ -222,6 +248,13 @@ Setattrable<Base>::Setattrable(PyTypeObject* type_type, const char* name)
this->enable(setattr);
}
template <class Base>
Setattrable<Base>::Setattrable(PyTypeObject* type_type)
: Base(type_type)
{
this->enable(setattr);
}
template <class Base>
int Setattrable<Base>::instance_setattr(PyObject* instance, const char* name, PyObject* value) const
{
@@ -250,7 +283,7 @@ namespace detail {
extern const CapabilityEntry capabilities[];
extern const std::size_t num_capabilities;
void add_capability(std::size_t index, PyTypeObject* dest, AllMethods&, const PyTypeObject* src = 0);
void add_capability(std::size_t index, PyTypeObject* dest, AllMethods&);
class UniquePodSet
{