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Add the co_extra field and accompanying APIs to code objects.

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This completes PEP 523.
This commit is contained in:
Brett Cannon 2016-09-07 11:16:41 -07:00
parent a9296e7f3b
commit 5c4de2863b
8 changed files with 139 additions and 3 deletions
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20
Include/code.h
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@ -7,6 +7,14 @@
extern "C" {
#endif
/* Holder for co_extra information */
typedef struct {
Py_ssize_t ce_size;
void **ce_extras;
} _PyCodeObjectExtra;
/* Bytecode object */
typedef struct {
PyObject_HEAD
@ -15,6 +23,7 @@ typedef struct {
int co_nlocals; /* #local variables */
int co_stacksize; /* #entries needed for evaluation stack */
int co_flags; /* CO_..., see below */
int co_firstlineno; /* first source line number */
PyObject *co_code; /* instruction opcodes */
PyObject *co_consts; /* list (constants used) */
PyObject *co_names; /* list of strings (names used) */
@ -30,11 +39,12 @@ typedef struct {
unsigned char *co_cell2arg; /* Maps cell vars which are arguments. */
PyObject *co_filename; /* unicode (where it was loaded from) */
PyObject *co_name; /* unicode (name, for reference) */
int co_firstlineno; /* first source line number */
PyObject *co_lnotab; /* string (encoding addr<->lineno mapping) See
Objects/lnotab_notes.txt for details. */
void *co_zombieframe; /* for optimization only (see frameobject.c) */
PyObject *co_weakreflist; /* to support weakrefs to code objects */
/* Scratch space for extra data relating to the code object */
_PyCodeObjectExtra *co_extra;
} PyCodeObject;
/* Masks for co_flags above */
@ -128,6 +138,14 @@ PyAPI_FUNC(PyObject*) _PyCode_ConstantKey(PyObject *obj);
PyAPI_FUNC(PyObject*) PyCode_Optimize(PyObject *code, PyObject* consts,
PyObject *names, PyObject *lnotab);
#ifndef Py_LIMITED_API
PyAPI_FUNC(int) _PyCode_GetExtra(PyObject *code, Py_ssize_t index,
void **extra);
PyAPI_FUNC(int) _PyCode_SetExtra(PyObject *code, Py_ssize_t index,
void *extra);
#endif
#ifdef __cplusplus
}
#endif