bpo-43244: Remove parser_interface.h header file (GH-25001)

Remove parser functions using the "struct _mod" type, because the
AST C API was removed:

* PyParser_ASTFromFile()
* PyParser_ASTFromFileObject()
* PyParser_ASTFromFilename()
* PyParser_ASTFromString()
* PyParser_ASTFromStringObject()

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

Add pycore_parser.h internal header file. Rename functions:

* PyParser_ASTFromFileObject() => _PyParser_ASTFromFile()
* PyParser_ASTFromStringObject() => _PyParser_ASTFromString()

These functions are no longer exported (replace PyAPI_FUNC() with
extern).

Remove also _PyPegen_run_parser_from_file() function. Update
test_peg_generator to use _PyPegen_run_parser_from_file_pointer()
instead.

1 files changed, 5 insertions, 46 deletions

diff --git a/Parser/peg_api.c b/Parser/peg_api.c
index 1555dea..1487ac4 100644
--- a/Parser/peg_api.c
+++ b/Parser/peg_api.c
@@ -4,21 +4,8 @@
 #include "pegen.h"
 
 mod_ty
-PyParser_ASTFromString(const char *str, const char *filename, int mode,
-                      PyCompilerFlags *flags, PyArena *arena)
-{
-    PyObject *filename_ob = PyUnicode_FromString(filename);
-    if (filename_ob == NULL) {
-        return NULL;
-    }
-    mod_ty result = PyParser_ASTFromStringObject(str, filename_ob, mode, flags, arena);
-    Py_XDECREF(filename_ob);
-    return result;
-}
-
-mod_ty
-PyParser_ASTFromStringObject(const char *str, PyObject* filename, int mode,
-                            PyCompilerFlags *flags, PyArena *arena)
+_PyParser_ASTFromString(const char *str, PyObject* filename, int mode,
+                        PyCompilerFlags *flags, PyArena *arena)
 {
     if (PySys_Audit("compile", "yO", str, filename) < 0) {
         return NULL;
@@ -29,37 +16,9 @@ PyParser_ASTFromStringObject(const char *str, PyObject* filename, int mode,
 }
 
 mod_ty
-PyParser_ASTFromFilename(const char *filename, int mode, PyCompilerFlags *flags, PyArena *arena)
-{
-    PyObject *filename_ob = PyUnicode_FromString(filename);
-    if (filename_ob == NULL) {
-        return NULL;
-    }
-
-    mod_ty result = _PyPegen_run_parser_from_file(filename, mode, filename_ob, flags, arena);
-    Py_XDECREF(filename_ob);
-    return result;
-}
-
-mod_ty
-PyParser_ASTFromFile(FILE *fp, const char *filename, const char *enc,
-                    int mode, const char *ps1, const char* ps2,
-                    PyCompilerFlags *flags, int *errcode, PyArena *arena)
-{
-    PyObject *filename_ob = PyUnicode_FromString(filename);
-    if (filename_ob == NULL) {
-        return NULL;
-    }
-    mod_ty result = PyParser_ASTFromFileObject(fp, filename_ob, enc, mode,
-                                              ps1, ps2, flags, errcode, arena);
-    Py_XDECREF(filename_ob);
-    return result;
-}
-
-mod_ty
-PyParser_ASTFromFileObject(FILE *fp, PyObject *filename_ob, const char *enc,
-                          int mode, const char *ps1, const char* ps2,
-                          PyCompilerFlags *flags, int *errcode, PyArena *arena)
+_PyParser_ASTFromFile(FILE *fp, PyObject *filename_ob, const char *enc,
+                      int mode, const char *ps1, const char* ps2,
+                      PyCompilerFlags *flags, int *errcode, PyArena *arena)
 {
     if (PySys_Audit("compile", "OO", Py_None, filename_ob) < 0) {
         return NULL;