diff options
Diffstat (limited to 'Include/frameobject.h')
| -rw-r--r-- | Include/frameobject.h | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/Include/frameobject.h b/Include/frameobject.h index 1fb64bb..55447b7 100644 --- a/Include/frameobject.h +++ b/Include/frameobject.h @@ -9,45 +9,46 @@ 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 */ + 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 */ + 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 */ - - /* In a generator, we need to be able to swap between the exception - state inside the generator and the exception state of the calling - frame (which shouldn't be impacted when the generator "yields" - from an except handler). - These three fields exist exactly for that, and are unused for - non-generator frames. See the SAVE_EXC_STATE and SWAP_EXC_STATE - macros in ceval.c for details of their use. */ + PyObject *f_trace; /* Trace function */ + PyObject *f_yieldfrom; /* Iterator being delegated to by yield from */ + + /* In a generator, we need to be able to swap between the exception + state inside the generator and the exception state of the calling + frame (which shouldn't be impacted when the generator "yields" + from an except handler). + These three fields exist exactly for that, and are unused for + non-generator frames. See the SAVE_EXC_STATE and SWAP_EXC_STATE + macros in ceval.c for details of their use. */ PyObject *f_exc_type, *f_exc_value, *f_exc_traceback; PyThreadState *f_tstate; - int f_lasti; /* Last instruction if called */ + 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 */ + 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 */ + PyObject *f_localsplus[1]; /* locals+stack, dynamically sized */ } PyFrameObject; |