/* Frame object interface */ #ifndef Py_LIMITED_API #ifndef Py_FRAMEOBJECT_H #define Py_FRAMEOBJECT_H #ifdef __cplusplus extern "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 */ char f_trace_lines; /* Emit per-line trace events? */ char f_trace_opcodes; /* Emit per-opcode trace events? */ /* Borrowed reference to a generator, or NULL */ PyObject *f_gen; int f_lasti; /* Last instruction if called */ /* Call PyFrame_GetLineNumber() instead of reading this field directly. As of 2.3 f_lineno is only valid when tracing is active (i.e. when f_trace is set). At other times we use PyCode_Addr2Line to calculate the line from the current bytecode index. */ int f_lineno; /* Current line number */ int f_iblock; /* index in f_blockstack */ char f_executing; /* whether the frame is still executing */ 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) (Py_TYPE(op) == &PyFrame_Type) PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *, PyObject *, PyObject *); /* only internal use */ PyFrameObject* _PyFrame_New_NoTrack(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(int) PyFrame_FastToLocalsWithError(PyFrameObject *f); PyAPI_FUNC(void) PyFrame_FastToLocals(PyFrameObject *); PyAPI_FUNC(int) PyFrame_ClearFreeList(void); PyAPI_FUNC(void) _PyFrame_DebugMallocStats(FILE *out); /* Return the line of code the frame is currently executing. */ PyAPI_FUNC(int) PyFrame_GetLineNumber(PyFrameObject *); #ifdef __cplusplus } #endif #endif /* !Py_FRAMEOBJECT_H */ #endif /* Py_LIMITED_API */