/* Frame object interface */ #ifndef Py_FRAMEOBJECT_H#define Py_FRAMEOBJECT_H#ifdef __cplusplusextern "C" {#endif typedef struct {    int b_type;			/* what kind of block this is */    int b_handler;		/* where to jump to find handler */    int b_level;		/* value stack level to pop to */} PyTryBlock; typedef struct _frame {    PyObject_VAR_HEAD    struct _frame *f_back;	/* previous frame, or NULL */    PyCodeObject *f_code;	/* code segment */    PyObject *f_builtins;	/* builtin symbol table (PyDictObject) */    PyObject *f_globals;	/* global symbol table (PyDictObject) */    PyObject *f_locals;		/* local symbol table (any mapping) */    PyObject **f_valuestack;	/* points after the last local */    /* Next free slot in f_valuestack.  Frame creation sets to f_valuestack.       Frame evaluation usually NULLs it, but a frame that yields sets it       to the current stack top. */    PyObject **f_stacktop;    PyObject *f_trace;		/* Trace function */     /* If an exception is raised in this frame, the next three are used to     * record the exception info (if any) originally in the thread state.  See     * comments before set_exc_info() -- it's not obvious.     * Invariant:  if _type is NULL, then so are _value and _traceback.     * Desired invariant:  all three are NULL, or all three are non-NULL.  That     * one isn't currently true, but "should be".     */    PyObject *f_exc_type, *f_exc_value, *f_exc_traceback;     PyThreadState *f_tstate;    int f_lasti;		/* Last instruction if called */    /* As of 2.3 f_lineno is only valid when tracing is active (i.e. when       f_trace is set) -- at other times use PyCode_Addr2Line instead. */    int f_lineno;		/* Current line number */    int f_iblock;		/* index in f_blockstack */    PyTryBlock f_blockstack[CO_MAXBLOCKS]; /* for try and loop blocks */    PyObject *f_localsplus[1];	/* locals+stack, dynamically sized */} PyFrameObject;  /* Standard object interface */ PyAPI_DATA(PyTypeObject) PyFrame_Type; #define PyFrame_Check(op) ((op)->ob_type == &PyFrame_Type)#define PyFrame_IsRestricted(f) \	((f)->f_builtins != (f)->f_tstate->interp->builtins) PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,                                       PyObject *, PyObject *);  /* The rest of the interface is specific for frame objects */ /* Block management functions */ PyAPI_FUNC(void) PyFrame_BlockSetup(PyFrameObject *, int, int, int);PyAPI_FUNC(PyTryBlock *) PyFrame_BlockPop(PyFrameObject *); /* Extend the value stack */ PyAPI_FUNC(PyObject **) PyFrame_ExtendStack(PyFrameObject *, int, int); /* Conversions between "fast locals" and locals in dictionary */ PyAPI_FUNC(void) PyFrame_LocalsToFast(PyFrameObject *, int);PyAPI_FUNC(void) PyFrame_FastToLocals(PyFrameObject *); #ifdef __cplusplus}#endif#endif /* !Py_FRAMEOBJECT_H */