bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)

These functions were undocumented and excluded from the limited C
API.

Most names defined by these header files were not prefixed by "Py"
and so could create names conflicts. For example, Python-ast.h
defined a "Yield" macro which was conflict with the "Yield" name used
by the Windows <winbase.h> header.

Use the Python ast module instead.

* Move Include/asdl.h to Include/internal/pycore_asdl.h.
* Move Include/Python-ast.h to Include/internal/pycore_ast.h.
* Remove ast.h header file.
* pycore_symtable.h no longer includes Python-ast.h.

1 files changed, 2 insertions, 2 deletions

diff --git a/Include/internal/pycore_symtable.h b/Include/internal/pycore_symtable.h
index 80d5fd1..5d34a6c 100644
--- a/Include/internal/pycore_symtable.h
+++ b/Include/internal/pycore_symtable.h
@@ -8,7 +8,7 @@ extern "C" {
 #  error "this header requires Py_BUILD_CORE define"
 #endif
 
-#include "Python-ast.h"   /* mod_ty */
+struct _mod;   // Type defined in pycore_ast.h
 
 typedef enum _block_type { FunctionBlock, ClassBlock, ModuleBlock }
     _Py_block_ty;
@@ -74,7 +74,7 @@ extern PyTypeObject PySTEntry_Type;
 extern int _PyST_GetScope(PySTEntryObject *, PyObject *);
 
 extern struct symtable* _PySymtable_Build(
-    mod_ty mod,
+    struct _mod *mod,
     PyObject *filename,
     PyFutureFeatures *future);
 PyAPI_FUNC(PySTEntryObject *) PySymtable_Lookup(struct symtable *, void *);