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| /* Frame object interface */ | |
| extern "C" { | |
| 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; | |
| 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 */ | |
| }; | |
| /* Standard object interface */ | |
| PyAPI_DATA(PyTypeObject) 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 *); | |
| /* 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(void) _PyFrame_DebugMallocStats(FILE *out); | |
| PyAPI_FUNC(PyFrameObject *) PyFrame_GetBack(PyFrameObject *frame); | |
| } | |