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Issue #17934: Add a clear() method to frame objects, to help clean up expensive details (local variables) and break reference cycles.

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This commit is contained in:
Antoine Pitrou 2013-08-05 23:26:40 +02:00
parent c53204b947
commit 58720d6145
10 changed files with 80 additions and 10 deletions
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3
Include/frameobject.h
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@ -36,6 +36,8 @@ typedef struct _frame {
non-generator frames. See the save_exc_state and swap_exc_state
functions in ceval.c for details of their use. */
PyObject *f_exc_type, *f_exc_value, *f_exc_traceback;
/* Borrowed referenced to a generator, or NULL */
PyObject *f_gen;
PyThreadState *f_tstate;
int f_lasti; /* Last instruction if called */
@ -46,6 +48,7 @@ typedef struct _frame {
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 */
} PyFrameObject;