Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-31 13:41:24 +00:00
Code Issues Projects Releases Packages Wiki Activity

Try harder to stay within the 79-column limit. There's still two places that go (way) over, but those are harder to fix without suffering in readability.

Browse source
This commit is contained in:
Thomas Wouters 2007-09-20 17:35:10 +00:00
parent efa7d51ee6
commit e2176020f9
1 changed files with 55 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

91
Python/ceval.c
View file

@ -28,8 +28,9 @@
typedef unsigned long long uint64;
#if defined(__ppc__) /* <- Don't know if this is the correct symbol; this
section should work for GCC on any PowerPC platform,
irrespective of OS. POWER? Who knows :-) */
section should work for GCC on any PowerPC
platform, irrespective of OS.
POWER? Who knows :-) */
#define READ_TIMESTAMP(var) ppc_getcounter(&var)
@ -93,7 +94,8 @@ static PyObject * call_function(PyObject ***, int);
static PyObject * fast_function(PyObject *, PyObject ***, int, int, int);
static PyObject * do_call(PyObject *, PyObject ***, int, int);
static PyObject * ext_do_call(PyObject *, PyObject ***, int, int, int);
static PyObject * update_keyword_args(PyObject *, int, PyObject ***,PyObject *);
static PyObject * update_keyword_args(PyObject *, int, PyObject ***,
PyObject *);
static PyObject * update_star_args(int, int, PyObject *, PyObject ***);
static PyObject * load_args(PyObject ***, int);
#define CALL_FLAG_VAR 1
@ -504,7 +506,8 @@ PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals)
PyObject *
PyEval_EvalFrame(PyFrameObject *f) {
/* This is for backward compatibility with extension modules that
used this API; core interpreter code should call PyEval_EvalFrameEx() */
used this API; core interpreter code should call
PyEval_EvalFrameEx() */
return PyEval_EvalFrameEx(f, 0);
}
@ -607,10 +610,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
#define JUMPBY(x) (next_instr += (x))
/* OpCode prediction macros
Some opcodes tend to come in pairs thus making it possible to predict
the second code when the first is run. For example, COMPARE_OP is often
followed by JUMP_IF_FALSE or JUMP_IF_TRUE. And, those opcodes are often
followed by a POP_TOP.
Some opcodes tend to come in pairs thus making it possible to
predict the second code when the first is run. For example,
COMPARE_OP is often followed by JUMP_IF_FALSE or JUMP_IF_TRUE. And,
those opcodes are often followed by a POP_TOP.
Verifying the prediction costs a single high-speed test of register
variable against a constant. If the pairing was good, then the
@ -657,11 +660,13 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
#define PUSH(v) { (void)(BASIC_PUSH(v), \
lltrace && prtrace(TOP(), "push")); \
assert(STACK_LEVEL() <= co->co_stacksize); }
#define POP() ((void)(lltrace && prtrace(TOP(), "pop")), BASIC_POP())
#define POP() ((void)(lltrace && prtrace(TOP(), "pop")), \
BASIC_POP())
#define STACKADJ(n) { (void)(BASIC_STACKADJ(n), \
lltrace && prtrace(TOP(), "stackadj")); \
assert(STACK_LEVEL() <= co->co_stacksize); }
#define EXT_POP(STACK_POINTER) (lltrace && prtrace((STACK_POINTER)[-1], "ext_pop"), *--(STACK_POINTER))
#define EXT_POP(STACK_POINTER) (lltrace && prtrace((STACK_POINTER)[-1], \
"ext_pop"), *--(STACK_POINTER))
#else
#define PUSH(v) BASIC_PUSH(v)
#define POP() BASIC_POP()
@ -1696,7 +1701,8 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
why == WHY_CONTINUE)
retval = POP();
}
else if (PyExceptionClass_Check(v) || PyString_Check(v)) {
else if (PyExceptionClass_Check(v) ||
PyString_Check(v)) {
w = POP();
u = POP();
PyErr_Restore(v, w, u);
@ -1745,7 +1751,8 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
if ((x = f->f_locals) != NULL) {
if ((err = PyObject_DelItem(x, w)) != 0)
format_exc_check_arg(PyExc_NameError,
NAME_ERROR_MSG ,w);
NAME_ERROR_MSG,
w);
break;
}
PyErr_Format(PyExc_SystemError,
@ -1756,8 +1763,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
PREDICTED_WITH_ARG(UNPACK_SEQUENCE);
case UNPACK_SEQUENCE:
v = POP();
if (PyTuple_CheckExact(v) && PyTuple_GET_SIZE(v) == oparg) {
PyObject **items = ((PyTupleObject *)v)->ob_item;
if (PyTuple_CheckExact(v) &&
PyTuple_GET_SIZE(v) == oparg) {
PyObject **items = \
((PyTupleObject *)v)->ob_item;
while (oparg--) {
w = items[oparg];
Py_INCREF(w);
@ -1765,8 +1774,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
}
Py_DECREF(v);
continue;
} else if (PyList_CheckExact(v) && PyList_GET_SIZE(v) == oparg) {
PyObject **items = ((PyListObject *)v)->ob_item;
} else if (PyList_CheckExact(v) &&
PyList_GET_SIZE(v) == oparg) {
PyObject **items = \
((PyListObject *)v)->ob_item;
while (oparg--) {
w = items[oparg];
Py_INCREF(w);
@ -1831,7 +1842,8 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
else {
x = PyObject_GetItem(v, w);
if (x == NULL && PyErr_Occurred()) {
if (!PyErr_ExceptionMatches(PyExc_KeyError))
if (!PyErr_ExceptionMatches(
PyExc_KeyError))
break;
PyErr_Clear();
}
@ -1843,7 +1855,7 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
if (x == NULL) {
format_exc_check_arg(
PyExc_NameError,
NAME_ERROR_MSG ,w);
NAME_ERROR_MSG, w);
break;
}
}
@ -1944,13 +1956,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
UNBOUNDLOCAL_ERROR_MSG,
v);
} else {
v = PyTuple_GET_ITEM(
co->co_freevars,
oparg - PyTuple_GET_SIZE(co->co_cellvars));
format_exc_check_arg(
PyExc_NameError,
UNBOUNDFREE_ERROR_MSG,
v);
v = PyTuple_GET_ITEM(co->co_freevars, oparg -
PyTuple_GET_SIZE(co->co_cellvars));
format_exc_check_arg(PyExc_NameError,
UNBOUNDFREE_ERROR_MSG, v);
}
break;
@ -2177,7 +2186,8 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
continue;
}
if (PyErr_Occurred()) {
if (!PyErr_ExceptionMatches(PyExc_StopIteration))
if (!PyErr_ExceptionMatches(
PyExc_StopIteration))
break;
PyErr_Clear();
}
@ -2203,9 +2213,10 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
case SETUP_LOOP:
case SETUP_EXCEPT:
case SETUP_FINALLY:
/* NOTE: If you add any new block-setup opcodes that are
not try/except/finally handlers, you may need to
update the PyGen_NeedsFinalizing() function. */
/* NOTE: If you add any new block-setup opcodes that
are not try/except/finally handlers, you may need
to update the PyGen_NeedsFinalizing() function.
*/
PyFrame_BlockSetup(f, opcode, INSTR_OFFSET() + oparg,
STACK_LEVEL());
@ -4003,8 +4014,7 @@ cmp_outcome(int op, register PyObject *v, register PyObject *w)
ret_val = PyErr_WarnEx(
PyExc_DeprecationWarning,
"catching of string "
"exceptions is "
"deprecated", 1);
"exceptions is deprecated", 1);
if (ret_val == -1)
return NULL;
}
@ -4016,8 +4026,7 @@ cmp_outcome(int op, register PyObject *v, register PyObject *w)
ret_val = PyErr_WarnEx(
PyExc_DeprecationWarning,
"catching of string "
"exceptions is deprecated",
1);
"exceptions is deprecated", 1);
if (ret_val == -1)
return NULL;
}
@ -4295,8 +4304,9 @@ string_concatenate(PyObject *v, PyObject *w,
if (v->ob_refcnt == 2) {
/* In the common case, there are 2 references to the value
* stored in 'variable' when the += is performed: one on the
* value stack (in 'v') and one still stored in the 'variable'.
* We try to delete the variable now to reduce the refcnt to 1.
* value stack (in 'v') and one still stored in the
* 'variable'. We try to delete the variable now to reduce
* the refcnt to 1.
*/
switch (*next_instr) {
case STORE_FAST:
@ -4309,7 +4319,8 @@ string_concatenate(PyObject *v, PyObject *w,
}
case STORE_DEREF:
{
PyObject **freevars = f->f_localsplus + f->f_code->co_nlocals;
PyObject **freevars = (f->f_localsplus +
f->f_code->co_nlocals);
PyObject *c = freevars[PEEKARG()];
if (PyCell_GET(c) == v)
PyCell_Set(c, NULL);
@ -4337,10 +4348,10 @@ string_concatenate(PyObject *v, PyObject *w,
*/
if (_PyString_Resize(&v, new_len) != 0) {
/* XXX if _PyString_Resize() fails, 'v' has been
* deallocated so it cannot be put back into 'variable'.
* The MemoryError is raised when there is no value in
* 'variable', which might (very remotely) be a cause
* of incompatibilities.
* deallocated so it cannot be put back into
* 'variable'. The MemoryError is raised when there
* is no value in 'variable', which might (very
* remotely) be a cause of incompatibilities.
*/
return NULL;
}