mirror of https://github.com/python/cpython
96 lines
2.7 KiB
ReStructuredText
96 lines
2.7 KiB
ReStructuredText
.. highlight:: c
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.. _instancemethod-objects:
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Instance Method Objects
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-----------------------
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.. index:: pair: object; instancemethod
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An instance method is a wrapper for a :c:data:`PyCFunction` and the new way
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to bind a :c:data:`PyCFunction` to a class object. It replaces the former call
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``PyMethod_New(func, NULL, class)``.
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.. c:var:: PyTypeObject PyInstanceMethod_Type
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This instance of :c:type:`PyTypeObject` represents the Python instance
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method type. It is not exposed to Python programs.
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.. c:function:: int PyInstanceMethod_Check(PyObject *o)
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Return true if *o* is an instance method object (has type
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:c:data:`PyInstanceMethod_Type`). The parameter must not be ``NULL``.
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This function always succeeds.
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.. c:function:: PyObject* PyInstanceMethod_New(PyObject *func)
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Return a new instance method object, with *func* being any callable object.
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*func* is the function that will be called when the instance method is
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called.
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.. c:function:: PyObject* PyInstanceMethod_Function(PyObject *im)
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Return the function object associated with the instance method *im*.
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.. c:function:: PyObject* PyInstanceMethod_GET_FUNCTION(PyObject *im)
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Macro version of :c:func:`PyInstanceMethod_Function` which avoids error checking.
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.. _method-objects:
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Method Objects
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--------------
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.. index:: pair: object; method
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Methods are bound function objects. Methods are always bound to an instance of
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a user-defined class. Unbound methods (methods bound to a class object) are
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no longer available.
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.. c:var:: PyTypeObject PyMethod_Type
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.. index:: single: MethodType (in module types)
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This instance of :c:type:`PyTypeObject` represents the Python method type. This
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is exposed to Python programs as ``types.MethodType``.
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.. c:function:: int PyMethod_Check(PyObject *o)
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Return true if *o* is a method object (has type :c:data:`PyMethod_Type`). The
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parameter must not be ``NULL``. This function always succeeds.
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.. c:function:: PyObject* PyMethod_New(PyObject *func, PyObject *self)
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Return a new method object, with *func* being any callable object and *self*
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the instance the method should be bound. *func* is the function that will
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be called when the method is called. *self* must not be ``NULL``.
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.. c:function:: PyObject* PyMethod_Function(PyObject *meth)
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Return the function object associated with the method *meth*.
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.. c:function:: PyObject* PyMethod_GET_FUNCTION(PyObject *meth)
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Macro version of :c:func:`PyMethod_Function` which avoids error checking.
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.. c:function:: PyObject* PyMethod_Self(PyObject *meth)
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Return the instance associated with the method *meth*.
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.. c:function:: PyObject* PyMethod_GET_SELF(PyObject *meth)
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Macro version of :c:func:`PyMethod_Self` which avoids error checking.
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