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Issue #19512: add _PyUnicode_CompareWithId() function

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_PyUnicode_CompareWithId() is faster than PyUnicode_CompareWithASCIIString()
when both strings are equal and interned.

Add also _PyId_builtins identifier for "builtins" common string.
This commit is contained in:
Victor Stinner 2013-11-07 00:46:04 +01:00
parent 937114f704
commit ad14ccd047
6 changed files with 32 additions and 15 deletions
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3
Python/pythonrun.c
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@ -37,6 +37,7 @@
/* Common identifiers */
_Py_Identifier _PyId_argv = _Py_static_string_init("argv");
_Py_Identifier _PyId_builtins = _Py_static_string_init("builtins");
_Py_Identifier _PyId_path = _Py_static_string_init("path");
_Py_Identifier _PyId_stdin = _Py_static_string_init("stdin");
_Py_Identifier _PyId_stdout = _Py_static_string_init("stdout");
@ -1928,7 +1929,7 @@ print_exception(PyObject *f, PyObject *value)
err = PyFile_WriteString("<unknown>", f);
}
else {
if (PyUnicode_CompareWithASCIIString(moduleName, "builtins") != 0)
if (_PyUnicode_CompareWithId(moduleName, &_PyId_builtins) != 0)
{
err = PyFile_WriteObject(moduleName, f, Py_PRINT_RAW);
err += PyFile_WriteString(".", f);