gh-108494: Argument Clinic: inline parsing code for positional-only parameters in the limited C API (GH-108622)

Author: serhiy-storchaka

Modules/_io/clinic/bufferedio.c.h

@@ -14,16 +14,17 @@ class HANDLE_converter(CConverter):
     type = "HANDLE"
     format_unit = '"F_HANDLE"'
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        return self.format_code("""
             {paramname} = PyLong_AsVoidPtr({argname});
             if (!{paramname} && PyErr_Occurred()) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.parser_name)
+            """,
+            argname=argname)
 
 [python start generated code]*/
-/*[python end generated code: output=da39a3ee5e6b4b0d input=3e537d244034affb]*/
+/*[python end generated code: output=da39a3ee5e6b4b0d input=3cf0318efc6a8772]*/
 
 /*[clinic input]
 module _multiprocessing

Modules/_io/clinic/bytesio.c.h

@@ -87,15 +87,16 @@ class pid_t_converter(CConverter):
     type = 'pid_t'
     format_unit = '" _Py_PARSE_PID "'
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        return self.format_code("""
             {paramname} = PyLong_AsPid({argname});
             if ({paramname} == -1 && PyErr_Occurred()) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.parser_name)
+            """,
+            argname=argname)
 [python start generated code]*/
-/*[python end generated code: output=da39a3ee5e6b4b0d input=5af1c116d56cbb5a]*/
+/*[python end generated code: output=da39a3ee5e6b4b0d input=c94349aa1aad151d]*/
 
 #include "clinic/_posixsubprocess.c.h"
 

Modules/_io/clinic/fileio.c.h

@@ -110,18 +110,20 @@ class cache_struct_converter(CConverter):
     c_default = "NULL"
     broken_limited_capi = True
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        assert not limited_capi
+        return self.format_code("""
             if (!{converter}(module, {argname}, &{paramname})) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.name,
-                       converter=self.converter)
+            """,
+            argname=argname,
+            converter=self.converter)
 
     def cleanup(self):
         return "Py_XDECREF(%s);\n" % self.name
 [python start generated code]*/
-/*[python end generated code: output=da39a3ee5e6b4b0d input=14e83804f599ed8f]*/
+/*[python end generated code: output=da39a3ee5e6b4b0d input=c33b27d6b06006c6]*/
 
 static int cache_struct_converter(PyObject *, PyObject *, PyStructObject **);
 

Modules/_io/clinic/winconsoleio.c.h

@@ -38,13 +38,14 @@
 class pointer_converter(CConverter):
     format_unit = '"F_POINTER"'
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        return self.format_code("""
             {paramname} = PyLong_AsVoidPtr({argname});
             if (!{paramname} && PyErr_Occurred()) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.parser_name)
+            """,
+            argname=argname)
 
 class OVERLAPPED_converter(pointer_converter):
     type = 'OVERLAPPED *'
@@ -55,21 +56,22 @@ class HANDLE_converter(pointer_converter):
 class ULONG_PTR_converter(pointer_converter):
     type = 'ULONG_PTR'
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        return self.format_code("""
             {paramname} = (uintptr_t)PyLong_AsVoidPtr({argname});
             if (!{paramname} && PyErr_Occurred()) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.parser_name)
+            """,
+            argname=argname)
 
 class DWORD_converter(unsigned_long_converter):
     type = 'DWORD'
 
 class BOOL_converter(int_converter):
     type = 'BOOL'
 [python start generated code]*/
-/*[python end generated code: output=da39a3ee5e6b4b0d input=8a07ea3018f4cec8]*/
+/*[python end generated code: output=da39a3ee5e6b4b0d input=436f4440630a304c]*/
 
 /*[clinic input]
 module _overlapped

Modules/_multiprocessing/multiprocessing.c

@@ -23,15 +23,16 @@ class pid_t_converter(CConverter):
     type = 'pid_t'
     format_unit = '" _Py_PARSE_PID "'
 
-    def parse_arg(self, argname, displayname):
-        return """
+    def parse_arg(self, argname, displayname, *, limited_capi):
+        return self.format_code("""
             {paramname} = PyLong_AsPid({argname});
             if ({paramname} == -1 && PyErr_Occurred()) {{{{
                 goto exit;
             }}}}
-            """.format(argname=argname, paramname=self.parser_name)
+            """,
+            argname=argname)
 [python start generated code]*/
-/*[python end generated code: output=da39a3ee5e6b4b0d input=5af1c116d56cbb5a]*/
+/*[python end generated code: output=da39a3ee5e6b4b0d input=c94349aa1aad151d]*/
 
 #include "clinic/resource.c.h"