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Kirill Smelkov
cython
Commits
ade78ced
Commit
ade78ced
authored
Apr 29, 2011
by
Stefan Behnel
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substantially faster equality comparison for str and bytes in many cases
parent
e53640f7
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Cython/Compiler/ExprNodes.py
Cython/Compiler/ExprNodes.py
+51
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Cython/Compiler/ExprNodes.py
View file @
ade78ced
...
@@ -6672,6 +6672,14 @@ class CmpNode(object):
...
@@ -6672,6 +6672,14 @@ class CmpNode(object):
env
.
use_utility_code
(
pyunicode_equals_utility_code
)
env
.
use_utility_code
(
pyunicode_equals_utility_code
)
self
.
special_bool_cmp_function
=
"__Pyx_PyUnicode_Equals"
self
.
special_bool_cmp_function
=
"__Pyx_PyUnicode_Equals"
return
True
return
True
elif
type1
is
Builtin
.
bytes_type
or
type2
is
Builtin
.
bytes_type
:
env
.
use_utility_code
(
pybytes_equals_utility_code
)
self
.
special_bool_cmp_function
=
"__Pyx_PyBytes_Equals"
return
True
elif
type1
is
Builtin
.
str_type
or
type2
is
Builtin
.
str_type
:
env
.
use_utility_code
(
pystr_equals_utility_code
)
self
.
special_bool_cmp_function
=
"__Pyx_PyString_Equals"
return
True
return
False
return
False
def
generate_operation_code
(
self
,
code
,
result_code
,
def
generate_operation_code
(
self
,
code
,
result_code
,
...
@@ -6884,6 +6892,49 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
...
@@ -6884,6 +6892,49 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
}
}
"""
)
"""
)
pybytes_equals_utility_code
=
UtilityCode
(
proto
=
"""
static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals); /*proto*/
"""
,
impl
=
"""
static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
if (s1 == s2) { /* as done by PyObject_RichCompareBool(); also catches the (interned) empty string */
return (equals == Py_EQ);
} else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
if (PyBytes_GET_SIZE(s1) != PyBytes_GET_SIZE(s2)) {
return (equals == Py_NE);
} else if (PyBytes_GET_SIZE(s1) == 1) {
if (equals == Py_EQ)
return (PyBytes_AS_STRING(s1)[0] == PyBytes_AS_STRING(s2)[0]);
else
return (PyBytes_AS_STRING(s1)[0] != PyBytes_AS_STRING(s2)[0]);
}
} else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
return (equals == Py_NE);
} else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
return (equals == Py_NE);
} else {
int result;
PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
if (!py_result)
return -1;
result = __Pyx_PyObject_IsTrue(py_result);
Py_DECREF(py_result);
return result;
}
}
"""
)
pystr_equals_utility_code
=
UtilityCode
(
proto
=
"""
#if PY_MAJOR_VERSION >= 3
#define __Pyx_PyString_Equals __Pyx_PyUnicode_Equals
#else
#define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
#endif
"""
,
requires
=
[
pybytes_equals_utility_code
,
pyunicode_equals_utility_code
])
class
PrimaryCmpNode
(
ExprNode
,
CmpNode
):
class
PrimaryCmpNode
(
ExprNode
,
CmpNode
):
# Non-cascaded comparison or first comparison of
# Non-cascaded comparison or first comparison of
...
...
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