Issue #27574: Decreased an overhead of parsing keyword arguments in functions

implemented with using Argument Clinic.

6 files changed, 36 insertions, 26 deletions

diff --git a/Modules/_io/clinic/_iomodule.c.h b/Modules/_io/clinic/_iomodule.c.h
index ee01cfb..50891c5 100644
--- a/Modules/_io/clinic/_iomodule.c.h
+++ b/Modules/_io/clinic/_iomodule.c.h
@@ -138,7 +138,8 @@ static PyObject *
 _io_open(PyObject *module, PyObject *args, PyObject *kwargs)
 {
     PyObject *return_value = NULL;
-    static char *_keywords[] = {"file", "mode", "buffering", "encoding", "errors", "newline", "closefd", "opener", NULL};
+    static const char * const _keywords[] = {"file", "mode", "buffering", "encoding", "errors", "newline", "closefd", "opener", NULL};
+    static _PyArg_Parser _parser = {"O|sizzziO:open", _keywords, 0};
     PyObject *file;
     const char *mode = "r";
     int buffering = -1;
@@ -148,7 +149,7 @@ _io_open(PyObject *module, PyObject *args, PyObject *kwargs)
     int closefd = 1;
     PyObject *opener = Py_None;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|sizzziO:open", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &file, &mode, &buffering, &encoding, &errors, &newline, &closefd, &opener)) {
         goto exit;
     }
@@ -157,4 +158,4 @@ _io_open(PyObject *module, PyObject *args, PyObject *kwargs)
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=ae2facf262cf464e input=a9049054013a1b77]*/
+/*[clinic end generated code: output=14769629391a3130 input=a9049054013a1b77]*/
diff --git a/Modules/_io/clinic/bufferedio.c.h b/Modules/_io/clinic/bufferedio.c.h
index c4dfc16..58144a4 100644
--- a/Modules/_io/clinic/bufferedio.c.h
+++ b/Modules/_io/clinic/bufferedio.c.h
@@ -324,11 +324,12 @@ static int
 _io_BufferedReader___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"raw", "buffer_size", NULL};
+    static const char * const _keywords[] = {"raw", "buffer_size", NULL};
+    static _PyArg_Parser _parser = {"O|n:BufferedReader", _keywords, 0};
     PyObject *raw;
     Py_ssize_t buffer_size = DEFAULT_BUFFER_SIZE;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|n:BufferedReader", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &raw, &buffer_size)) {
         goto exit;
     }
@@ -356,11 +357,12 @@ static int
 _io_BufferedWriter___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"raw", "buffer_size", NULL};
+    static const char * const _keywords[] = {"raw", "buffer_size", NULL};
+    static _PyArg_Parser _parser = {"O|n:BufferedWriter", _keywords, 0};
     PyObject *raw;
     Py_ssize_t buffer_size = DEFAULT_BUFFER_SIZE;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|n:BufferedWriter", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &raw, &buffer_size)) {
         goto exit;
     }
@@ -459,11 +461,12 @@ static int
 _io_BufferedRandom___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"raw", "buffer_size", NULL};
+    static const char * const _keywords[] = {"raw", "buffer_size", NULL};
+    static _PyArg_Parser _parser = {"O|n:BufferedRandom", _keywords, 0};
     PyObject *raw;
     Py_ssize_t buffer_size = DEFAULT_BUFFER_SIZE;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|n:BufferedRandom", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &raw, &buffer_size)) {
         goto exit;
     }
@@ -472,4 +475,4 @@ _io_BufferedRandom___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=4f6196c756b880c8 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=a956f394ecde4cf9 input=a9049054013a1b77]*/
diff --git a/Modules/_io/clinic/bytesio.c.h b/Modules/_io/clinic/bytesio.c.h
index 1f736fe..c64ce5c 100644
--- a/Modules/_io/clinic/bytesio.c.h
+++ b/Modules/_io/clinic/bytesio.c.h
@@ -415,10 +415,11 @@ static int
 _io_BytesIO___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"initial_bytes", NULL};
+    static const char * const _keywords[] = {"initial_bytes", NULL};
+    static _PyArg_Parser _parser = {"|O:BytesIO", _keywords, 0};
     PyObject *initvalue = NULL;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O:BytesIO", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &initvalue)) {
         goto exit;
     }
@@ -427,4 +428,4 @@ _io_BytesIO___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=3fdb62f3e3b0544d input=a9049054013a1b77]*/
+/*[clinic end generated code: output=6382e8eb578eea64 input=a9049054013a1b77]*/
diff --git a/Modules/_io/clinic/fileio.c.h b/Modules/_io/clinic/fileio.c.h
index 038836a..908fe0f 100644
--- a/Modules/_io/clinic/fileio.c.h
+++ b/Modules/_io/clinic/fileio.c.h
@@ -49,13 +49,14 @@ static int
 _io_FileIO___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"file", "mode", "closefd", "opener", NULL};
+    static const char * const _keywords[] = {"file", "mode", "closefd", "opener", NULL};
+    static _PyArg_Parser _parser = {"O|siO:FileIO", _keywords, 0};
     PyObject *nameobj;
     const char *mode = "r";
     int closefd = 1;
     PyObject *opener = Py_None;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|siO:FileIO", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &nameobj, &mode, &closefd, &opener)) {
         goto exit;
     }
@@ -372,4 +373,4 @@ _io_FileIO_isatty(fileio *self, PyObject *Py_UNUSED(ignored))
 #ifndef _IO_FILEIO_TRUNCATE_METHODDEF
     #define _IO_FILEIO_TRUNCATE_METHODDEF
 #endif /* !defined(_IO_FILEIO_TRUNCATE_METHODDEF) */
-/*[clinic end generated code: output=bf4b4bd6b976346d input=a9049054013a1b77]*/
+/*[clinic end generated code: output=51924bc0ee11d58e input=a9049054013a1b77]*/
diff --git a/Modules/_io/clinic/stringio.c.h b/Modules/_io/clinic/stringio.c.h
index ce9f46e..d2c05d7 100644
--- a/Modules/_io/clinic/stringio.c.h
+++ b/Modules/_io/clinic/stringio.c.h
@@ -221,11 +221,12 @@ static int
 _io_StringIO___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"initial_value", "newline", NULL};
+    static const char * const _keywords[] = {"initial_value", "newline", NULL};
+    static _PyArg_Parser _parser = {"|OO:StringIO", _keywords, 0};
     PyObject *value = NULL;
     PyObject *newline_obj = NULL;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OO:StringIO", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &value, &newline_obj)) {
         goto exit;
     }
@@ -288,4 +289,4 @@ _io_StringIO_seekable(stringio *self, PyObject *Py_UNUSED(ignored))
 {
     return _io_StringIO_seekable_impl(self);
 }
-/*[clinic end generated code: output=0513219581cbe952 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=5dd5c2a213e75405 input=a9049054013a1b77]*/
diff --git a/Modules/_io/clinic/textio.c.h b/Modules/_io/clinic/textio.c.h
index f115326..6c40819 100644
--- a/Modules/_io/clinic/textio.c.h
+++ b/Modules/_io/clinic/textio.c.h
@@ -24,12 +24,13 @@ static int
 _io_IncrementalNewlineDecoder___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"decoder", "translate", "errors", NULL};
+    static const char * const _keywords[] = {"decoder", "translate", "errors", NULL};
+    static _PyArg_Parser _parser = {"Oi|O:IncrementalNewlineDecoder", _keywords, 0};
     PyObject *decoder;
     int translate;
     PyObject *errors = NULL;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi|O:IncrementalNewlineDecoder", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &decoder, &translate, &errors)) {
         goto exit;
     }
@@ -55,11 +56,12 @@ static PyObject *
 _io_IncrementalNewlineDecoder_decode(nldecoder_object *self, PyObject *args, PyObject *kwargs)
 {
     PyObject *return_value = NULL;
-    static char *_keywords[] = {"input", "final", NULL};
+    static const char * const _keywords[] = {"input", "final", NULL};
+    static _PyArg_Parser _parser = {"O|i:decode", _keywords, 0};
     PyObject *input;
     int final = 0;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|i:decode", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &input, &final)) {
         goto exit;
     }
@@ -155,7 +157,8 @@ static int
 _io_TextIOWrapper___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 {
     int return_value = -1;
-    static char *_keywords[] = {"buffer", "encoding", "errors", "newline", "line_buffering", "write_through", NULL};
+    static const char * const _keywords[] = {"buffer", "encoding", "errors", "newline", "line_buffering", "write_through", NULL};
+    static _PyArg_Parser _parser = {"O|zzzii:TextIOWrapper", _keywords, 0};
     PyObject *buffer;
     const char *encoding = NULL;
     const char *errors = NULL;
@@ -163,7 +166,7 @@ _io_TextIOWrapper___init__(PyObject *self, PyObject *args, PyObject *kwargs)
     int line_buffering = 0;
     int write_through = 0;
 
-    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|zzzii:TextIOWrapper", _keywords,
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
         &buffer, &encoding, &errors, &newline, &line_buffering, &write_through)) {
         goto exit;
     }
@@ -461,4 +464,4 @@ _io_TextIOWrapper_close(textio *self, PyObject *Py_UNUSED(ignored))
 {
     return _io_TextIOWrapper_close_impl(self);
 }
-/*[clinic end generated code: output=31a39bbbe07ae4e7 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=7ec624a9bf6393f5 input=a9049054013a1b77]*/