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use the static identifier api for looking up special methods

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I had to move the static identifier code from unicodeobject.h to object.h in
order for this to work.
This commit is contained in:
Benjamin Peterson 2012-01-22 11:24:29 -05:00
parent cd8991255c
commit ce79852077
11 changed files with 153 additions and 164 deletions
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29
Include/unicodeobject.h
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@ -2120,35 +2120,6 @@ PyAPI_FUNC(int) _PyUnicode_CheckConsistency(
int check_content);
#endif
/********************* String Literals ****************************************/
/* This structure helps managing static strings. The basic usage goes like this:
Instead of doing
r = PyObject_CallMethod(o, "foo", "args", ...);
do
_Py_IDENTIFIER(foo);
...
r = _PyObject_CallMethodId(o, &PyId_foo, "args", ...);
PyId_foo is a static variable, either on block level or file level. On first
usage, the string "foo" is interned, and the structures are linked. On interpreter
shutdown, all strings are released (through _PyUnicode_ClearStaticStrings).
Alternatively, _Py_static_string allows to choose the variable name.
_PyUnicode_FromId returns a borrowed reference to the interned string.
_PyObject_{Get,Set,Has}AttrId are __getattr__ versions using _Py_Identifier*.
*/
typedef struct _Py_Identifier {
struct _Py_Identifier *next;
const char* string;
PyObject *object;
} _Py_Identifier;
#define _Py_static_string(varname, value) static _Py_Identifier varname = { 0, value, 0 }
#define _Py_IDENTIFIER(varname) _Py_static_string(PyId_##varname, #varname)
/* Return an interned Unicode object for an Identifier; may fail if there is no memory.*/
PyAPI_FUNC(PyObject*) _PyUnicode_FromId(_Py_Identifier*);
/* Clear all static strings. */