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If a code object is compiled with nested scopes, define the CO_NESTED flag.

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Add PyEval_GetNestedScopes() which returns a non-zero value if the
code for the current interpreter frame has CO_NESTED defined.
This commit is contained in:
Jeremy Hylton 2001-03-22 02:32:48 +00:00
parent f6e47ad4bd
commit 061d106a0f
4 changed files with 13 additions and 1 deletions
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1
Include/ceval.h
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@ -28,6 +28,7 @@ DL_IMPORT(PyObject *) PyEval_GetLocals(void);
DL_IMPORT(PyObject *) PyEval_GetOwner(void); DL_IMPORT(PyObject *) PyEval_GetOwner(void);
DL_IMPORT(PyObject *) PyEval_GetFrame(void); DL_IMPORT(PyObject *) PyEval_GetFrame(void);
DL_IMPORT(int) PyEval_GetRestricted(void); DL_IMPORT(int) PyEval_GetRestricted(void);
DL_IMPORT(int) PyEval_GetNestedScopes(void);
DL_IMPORT(int) Py_FlushLine(void); DL_IMPORT(int) Py_FlushLine(void);

1
Include/compile.h
View file

@ -32,6 +32,7 @@ typedef struct {
#define CO_NEWLOCALS 0x0002 #define CO_NEWLOCALS 0x0002
#define CO_VARARGS 0x0004 #define CO_VARARGS 0x0004
#define CO_VARKEYWORDS 0x0008 #define CO_VARKEYWORDS 0x0008
#define CO_NESTED 0x0010
extern DL_IMPORT(PyTypeObject) PyCode_Type; extern DL_IMPORT(PyTypeObject) PyCode_Type;

8
Python/ceval.c
View file

@ -2666,6 +2666,14 @@ PyEval_GetRestricted(void)
return current_frame == NULL ? 0 : current_frame->f_restricted; return current_frame == NULL ? 0 : current_frame->f_restricted;
} }
int
PyEval_GetNestedScopes(void)
{
PyFrameObject *current_frame = PyThreadState_Get()->frame;
return current_frame == NULL ? 0 :
current_frame->f_code->co_flags & CO_NESTED;
}
int int
Py_FlushLine(void) Py_FlushLine(void)
{ {

2
Python/compile.c
View file

@ -4276,6 +4276,8 @@ static int
symtable_update_flags(struct compiling *c, PySymtableEntryObject *ste, symtable_update_flags(struct compiling *c, PySymtableEntryObject *ste,
struct symbol_info *si) struct symbol_info *si)
{ {
if (c->c_future && c->c_future->ff_nested_scopes)
c->c_flags |= CO_NESTED;
if (ste->ste_type != TYPE_MODULE) if (ste->ste_type != TYPE_MODULE)
c->c_flags |= CO_NEWLOCALS; c->c_flags |= CO_NEWLOCALS;
if (ste->ste_type == TYPE_FUNCTION) { if (ste->ste_type == TYPE_FUNCTION) {