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120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
#ifndef Py_FRAMEOBJECT_H
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#define Py_FRAMEOBJECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Frame object interface */
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typedef struct {
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int b_type; /* what kind of block this is */
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int b_handler; /* where to jump to find handler */
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int b_level; /* value stack level to pop to */
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} PyTryBlock;
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typedef struct _frame {
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PyObject_HEAD
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struct _frame *f_back; /* previous frame, or NULL */
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PyCodeObject *f_code; /* code segment */
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PyObject *f_builtins; /* builtin symbol table (PyDictObject) */
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PyObject *f_globals; /* global symbol table (PyDictObject) */
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PyObject *f_locals; /* local symbol table (PyDictObject) */
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PyObject **f_valuestack; /* points after the last local */
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PyObject *f_trace; /* Trace function */
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PyObject *f_exc_type, *f_exc_value, *f_exc_traceback;
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PyThreadState *f_tstate;
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int f_lasti; /* Last instruction if called */
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int f_lineno; /* Current line number */
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int f_restricted; /* Flag set if restricted operations
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in this scope */
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int f_iblock; /* index in f_blockstack */
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PyTryBlock f_blockstack[CO_MAXBLOCKS]; /* for try and loop blocks */
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int f_nlocals; /* number of locals */
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int f_stacksize; /* size of value stack */
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PyObject *f_localsplus[1]; /* locals+stack, dynamically sized */
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} PyFrameObject;
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/* Standard object interface */
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extern DL_IMPORT(PyTypeObject) PyFrame_Type;
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#define PyFrame_Check(op) ((op)->ob_type == &PyFrame_Type)
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PyFrameObject * PyFrame_New
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Py_PROTO((PyThreadState *, PyCodeObject *,
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PyObject *, PyObject *));
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/* The rest of the interface is specific for frame objects */
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/* Tuple access macros */
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#ifndef Py_DEBUG
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#define GETITEM(v, i) PyTuple_GET_ITEM((PyTupleObject *)(v), (i))
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#define GETITEMNAME(v, i) \
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PyString_AS_STRING((PyStringObject *)GETITEM((v), (i)))
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#else
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#define GETITEM(v, i) PyTuple_GetItem((v), (i))
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#define GETITEMNAME(v, i) PyString_AsString(GETITEM(v, i))
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#endif
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#define GETUSTRINGVALUE(s) ((unsigned char *)PyString_AS_STRING(s))
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/* Code access macros */
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#define Getconst(f, i) (GETITEM((f)->f_code->co_consts, (i)))
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#define Getname(f, i) (GETITEMNAME((f)->f_code->co_names, (i)))
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#define Getnamev(f, i) (GETITEM((f)->f_code->co_names, (i)))
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/* Block management functions */
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void PyFrame_BlockSetup Py_PROTO((PyFrameObject *, int, int, int));
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PyTryBlock *PyFrame_BlockPop Py_PROTO((PyFrameObject *));
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/* Extend the value stack */
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PyObject **PyFrame_ExtendStack Py_PROTO((PyFrameObject *, int, int));
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/* Conversions between "fast locals" and locals in dictionary */
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void PyFrame_LocalsToFast Py_PROTO((PyFrameObject *, int));
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void PyFrame_FastToLocals Py_PROTO((PyFrameObject *));
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_FRAMEOBJECT_H */
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