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/* See InternalDocs/frames.md for an explanation of the frame stack
* including explanation of the PyFrameObject and _PyInterpreterFrame
* structs. */
#ifndef Py_INTERNAL_FRAME_H
#define Py_INTERNAL_FRAME_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_typedefs.h" // _PyInterpreterFrame
struct _frame {
PyObject_HEAD
PyFrameObject *f_back; /* previous frame, or NULL */
_PyInterpreterFrame *f_frame; /* points to the frame data */
PyObject *f_trace; /* Trace function */
int f_lineno; /* Current line number. Only valid if non-zero */
char f_trace_lines; /* Emit per-line trace events? */
char f_trace_opcodes; /* Emit per-opcode trace events? */
PyObject *f_extra_locals; /* Dict for locals set by users using f_locals, could be NULL */
/* This is purely for backwards compatibility for PyEval_GetLocals.
PyEval_GetLocals requires a borrowed reference so the actual reference
is stored here */
PyObject *f_locals_cache;
/* A tuple containing strong references to fast locals that were overwritten
* via f_locals. Borrowed references to these locals may exist in frames
* closer to the top of the stack. The references in this tuple act as
* "support" for the borrowed references, ensuring that they remain valid.
*/
PyObject *f_overwritten_fast_locals;
/* The frame data, if this frame object owns the frame */
PyObject *_f_frame_data[1];
};
extern PyFrameObject* _PyFrame_New_NoTrack(PyCodeObject *code);
/* other API */
typedef enum _framestate {
FRAME_CREATED = -3,
FRAME_SUSPENDED = -2,
FRAME_SUSPENDED_YIELD_FROM = -1,
FRAME_EXECUTING = 0,
FRAME_COMPLETED = 1,
FRAME_CLEARED = 4
} PyFrameState;
#define FRAME_STATE_SUSPENDED(S) ((S) == FRAME_SUSPENDED || (S) == FRAME_SUSPENDED_YIELD_FROM)
#define FRAME_STATE_FINISHED(S) ((S) >= FRAME_COMPLETED)
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_FRAME_H */
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