gh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState (#100277)

1 files changed, 2 insertions, 20 deletions

diff --git a/Parser/action_helpers.c b/Parser/action_helpers.c
index f12dad0..4639096 100644
--- a/Parser/action_helpers.c
+++ b/Parser/action_helpers.c
@@ -2,30 +2,12 @@
 
 #include "pegen.h"
 #include "string_parser.h"
-
-static PyObject *
-_create_dummy_identifier(Parser *p)
-{
-    return _PyPegen_new_identifier(p, "");
-}
+#include "pycore_runtime.h"         // _PyRuntime
 
 void *
 _PyPegen_dummy_name(Parser *p, ...)
 {
-    // XXX This leaks memory from the initial arena.
-    // Use a statically allocated variable instead of a pointer?
-    static void *cache = NULL;
-
-    if (cache != NULL) {
-        return cache;
-    }
-
-    PyObject *id = _create_dummy_identifier(p);
-    if (!id) {
-        return NULL;
-    }
-    cache = _PyAST_Name(id, Load, 1, 0, 1, 0, p->arena);
-    return cache;
+    return &_PyRuntime.parser.dummy_name;
 }
 
 /* Creates a single-element asdl_seq* that contains a */