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48 lines
1.6 KiB
ReStructuredText
48 lines
1.6 KiB
ReStructuredText
.. highlightlang:: c
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.. _codeobjects:
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.. index:: object; code, code object
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Code Objects
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------------
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.. sectionauthor:: Jeffrey Yasskin <jyasskin@gmail.com>
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Code objects are a low-level detail of the CPython implementation.
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Each one represents a chunk of executable code that hasn't yet been
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bound into a function.
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.. c:type:: PyCodeObject
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The C structure of the objects used to describe code objects. The
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fields of this type are subject to change at any time.
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.. c:var:: PyTypeObject PyCode_Type
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This is an instance of :c:type:`PyTypeObject` representing the Python
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:class:`code` type.
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.. c:function:: int PyCode_Check(PyObject *co)
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Return true if *co* is a :class:`code` object.
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.. c:function:: int PyCode_GetNumFree(PyCodeObject *co)
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Return the number of free variables in *co*.
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.. c:function:: PyCodeObject* PyCode_New(int argcount, int kwonlyargcount, int nlocals, int stacksize, int flags, PyObject *code, PyObject *consts, PyObject *names, PyObject *varnames, PyObject *freevars, PyObject *cellvars, PyObject *filename, PyObject *name, int firstlineno, PyObject *lnotab)
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Return a new code object. If you need a dummy code object to
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create a frame, use :c:func:`PyCode_NewEmpty` instead. Calling
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:c:func:`PyCode_New` directly can bind you to a precise Python
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version since the definition of the bytecode changes often.
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.. c:function:: PyCodeObject* PyCode_NewEmpty(const char *filename, const char *funcname, int firstlineno)
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Return a new empty code object with the specified filename,
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function name, and first line number. It is illegal to
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:func:`exec` or :func:`eval` the resulting code object.
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