mirror of https://github.com/python/cpython.git
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
|
|
/* Frame object interface */
|
|
|
|
#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_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 (PyDictObject) */
|
|
PyObject **f_valuestack; /* points after the last local */
|
|
PyObject *f_trace; /* Trace function */
|
|
PyObject *f_exc_type, *f_exc_value, *f_exc_traceback;
|
|
PyThreadState *f_tstate;
|
|
int f_lasti; /* Last instruction if called */
|
|
int f_lineno; /* Current line number */
|
|
int f_restricted; /* Flag set if restricted operations
|
|
in this scope */
|
|
int f_iblock; /* index in f_blockstack */
|
|
PyTryBlock f_blockstack[CO_MAXBLOCKS]; /* for try and loop blocks */
|
|
int f_size; /* size of localsplus */
|
|
int f_nlocals; /* number of locals */
|
|
int f_ncells;
|
|
int f_nfreevars;
|
|
int f_stacksize; /* size of value stack */
|
|
PyObject *f_localsplus[1]; /* locals+stack, dynamically sized */
|
|
} PyFrameObject;
|
|
|
|
|
|
/* Standard object interface */
|
|
|
|
extern DL_IMPORT(PyTypeObject) PyFrame_Type;
|
|
|
|
#define PyFrame_Check(op) ((op)->ob_type == &PyFrame_Type)
|
|
|
|
DL_IMPORT(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,
|
|
PyObject *, PyObject *,
|
|
PyObject *);
|
|
|
|
|
|
/* The rest of the interface is specific for frame objects */
|
|
|
|
/* Tuple access macros */
|
|
|
|
#ifndef Py_DEBUG
|
|
#define GETITEM(v, i) PyTuple_GET_ITEM((PyTupleObject *)(v), (i))
|
|
#define GETITEMNAME(v, i) \
|
|
PyString_AS_STRING((PyStringObject *)GETITEM((v), (i)))
|
|
#else
|
|
#define GETITEM(v, i) PyTuple_GetItem((v), (i))
|
|
#define GETITEMNAME(v, i) PyString_AsString(GETITEM(v, i))
|
|
#endif
|
|
|
|
#define GETUSTRINGVALUE(s) ((unsigned char *)PyString_AS_STRING(s))
|
|
|
|
/* Code access macros */
|
|
|
|
#define Getconst(f, i) (GETITEM((f)->f_code->co_consts, (i)))
|
|
#define Getname(f, i) (GETITEMNAME((f)->f_code->co_names, (i)))
|
|
#define Getnamev(f, i) (GETITEM((f)->f_code->co_names, (i)))
|
|
|
|
|
|
/* Block management functions */
|
|
|
|
DL_IMPORT(void) PyFrame_BlockSetup(PyFrameObject *, int, int, int);
|
|
DL_IMPORT(PyTryBlock *) PyFrame_BlockPop(PyFrameObject *);
|
|
|
|
/* Extend the value stack */
|
|
|
|
DL_IMPORT(PyObject **) PyFrame_ExtendStack(PyFrameObject *, int, int);
|
|
|
|
/* Conversions between "fast locals" and locals in dictionary */
|
|
|
|
DL_IMPORT(void) PyFrame_LocalsToFast(PyFrameObject *, int);
|
|
DL_IMPORT(void) PyFrame_FastToLocals(PyFrameObject *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_FRAMEOBJECT_H */
|