diff options
author | Benjamin Peterson <benjamin@python.org> | 2011-07-03 21:48:31 (GMT) |
---|---|---|
committer | Benjamin Peterson <benjamin@python.org> | 2011-07-03 21:48:31 (GMT) |
commit | 878802435d5839f54b49f1537eeca6dce330569c (patch) | |
tree | 03f30113b403595b5e91e22c590e424cb5b445ca /Python | |
parent | 536feac7f863c64f32c3bba492b79ddf03323373 (diff) | |
download | cpython-878802435d5839f54b49f1537eeca6dce330569c.zip cpython-878802435d5839f54b49f1537eeca6dce330569c.tar.gz cpython-878802435d5839f54b49f1537eeca6dce330569c.tar.bz2 |
convert generator exc state functions into static functions
Diffstat (limited to 'Python')
-rw-r--r-- | Python/ceval.c | 116 |
1 files changed, 62 insertions, 54 deletions
diff --git a/Python/ceval.c b/Python/ceval.c index 1dd0d49..5a5e23c5 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -749,6 +749,9 @@ enum why_code { WHY_SILENCED = 0x0080 /* Exception silenced by 'with' */ }; +static void save_exc_state(PyThreadState *, PyFrameObject *); +static void swap_exc_state(PyThreadState *, PyFrameObject *); +static void restore_and_clear_exc_state(PyThreadState *, PyFrameObject *); static enum why_code do_raise(PyObject *, PyObject *); static int unpack_iterable(PyObject *, int, int, PyObject **); @@ -1110,54 +1113,6 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag) Py_XDECREF(traceback); \ } -#define SAVE_EXC_STATE() \ - { \ - PyObject *type, *value, *traceback; \ - Py_XINCREF(tstate->exc_type); \ - Py_XINCREF(tstate->exc_value); \ - Py_XINCREF(tstate->exc_traceback); \ - type = f->f_exc_type; \ - value = f->f_exc_value; \ - traceback = f->f_exc_traceback; \ - f->f_exc_type = tstate->exc_type; \ - f->f_exc_value = tstate->exc_value; \ - f->f_exc_traceback = tstate->exc_traceback; \ - Py_XDECREF(type); \ - Py_XDECREF(value); \ - Py_XDECREF(traceback); \ - } - -#define SWAP_EXC_STATE() \ - { \ - PyObject *tmp; \ - tmp = tstate->exc_type; \ - tstate->exc_type = f->f_exc_type; \ - f->f_exc_type = tmp; \ - tmp = tstate->exc_value; \ - tstate->exc_value = f->f_exc_value; \ - f->f_exc_value = tmp; \ - tmp = tstate->exc_traceback; \ - tstate->exc_traceback = f->f_exc_traceback; \ - f->f_exc_traceback = tmp; \ - } - -#define RESTORE_AND_CLEAR_EXC_STATE() \ - { \ - PyObject *type, *value, *tb; \ - type = tstate->exc_type; \ - value = tstate->exc_value; \ - tb = tstate->exc_traceback; \ - tstate->exc_type = f->f_exc_type; \ - tstate->exc_value = f->f_exc_value; \ - tstate->exc_traceback = f->f_exc_traceback; \ - f->f_exc_type = NULL; \ - f->f_exc_value = NULL; \ - f->f_exc_traceback = NULL; \ - Py_XDECREF(type); \ - Py_XDECREF(value); \ - Py_XDECREF(tb); \ - } - /* Start of code */ if (f == NULL) @@ -1236,11 +1191,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag) /* We were in an except handler when we left, restore the exception state which was put aside (see YIELD_VALUE). */ - SWAP_EXC_STATE(); - } - else { - SAVE_EXC_STATE(); + swap_exc_state(tstate, f); } + else + save_exc_state(tstate, f); } #ifdef LLTRACE @@ -3033,9 +2987,9 @@ fast_yield: break; if (i == f->f_iblock) /* We did not create this exception. */ - RESTORE_AND_CLEAR_EXC_STATE() + restore_and_clear_exc_state(tstate, f); else - SWAP_EXC_STATE() + swap_exc_state(tstate, f); } if (tstate->use_tracing) { @@ -3453,6 +3407,60 @@ special_lookup(PyObject *o, char *meth, PyObject **cache) } +/* These 3 functions deal with the exception state of generators. */ + +static void +save_exc_state(PyThreadState *tstate, PyFrameObject *f) +{ + PyObject *type, *value, *traceback; + Py_XINCREF(tstate->exc_type); + Py_XINCREF(tstate->exc_value); + Py_XINCREF(tstate->exc_traceback); + type = f->f_exc_type; + value = f->f_exc_value; + traceback = f->f_exc_traceback; + f->f_exc_type = tstate->exc_type; + f->f_exc_value = tstate->exc_value; + f->f_exc_traceback = tstate->exc_traceback; + Py_XDECREF(type); + Py_XDECREF(value); + Py_XDECREF(traceback); +} + +static void +swap_exc_state(PyThreadState *tstate, PyFrameObject *f) +{ + PyObject *tmp; + tmp = tstate->exc_type; + tstate->exc_type = f->f_exc_type; + f->f_exc_type = tmp; + tmp = tstate->exc_value; + tstate->exc_value = f->f_exc_value; + f->f_exc_value = tmp; + tmp = tstate->exc_traceback; + tstate->exc_traceback = f->f_exc_traceback; + f->f_exc_traceback = tmp; +} + +static void +restore_and_clear_exc_state(PyThreadState *tstate, PyFrameObject *f) +{ + PyObject *type, *value, *tb; + type = tstate->exc_type; + value = tstate->exc_value; + tb = tstate->exc_traceback; + tstate->exc_type = f->f_exc_type; + tstate->exc_value = f->f_exc_value; + tstate->exc_traceback = f->f_exc_traceback; + f->f_exc_type = NULL; + f->f_exc_value = NULL; + f->f_exc_traceback = NULL; + Py_XDECREF(type); + Py_XDECREF(value); + Py_XDECREF(tb); +} + + /* Logic for the raise statement (too complicated for inlining). This *consumes* a reference count to each of its arguments. */ static enum why_code |