port: advance VC6 typeobject frontier and preserve regression coverage

2026-10-26 18:09:33 +00:00
parent 35caf1a558
commit 5ab291a68c
162 changed files with 15675 additions and 85 deletions
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+"""Check only maybe_freelist_clear's C89 index and teardown order."""
+import re
+import sys
+from pathlib import Path
+
+source = Path(sys.argv[1] if len(sys.argv) > 1 else "cpython/Objects/tupleobject.c")
+match = re.search(
+    r"static void\nmaybe_freelist_clear\(PyInterpreterState \*interp, int fini\)\n\{(.*?)\n\}",
+    source.read_text(),
+    re.S,
+)
+assert match, "maybe_freelist_clear definition missing"
+body = match.group(1)
+assert re.match(r"\s*#if PyTuple_NFREELISTS > 0\s*Py_ssize_t i;", body), (
+    "maybe_freelist_clear: i must be declared before the loop for C89"
+)
+expected = """
+#if PyTuple_NFREELISTS > 0
+    Py_ssize_t i;
+    for (i = 0; i < PyTuple_NFREELISTS; i++) {
+        PyTupleObject *p = STATE.free_list[i];
+        STATE.free_list[i] = NULL;
+        STATE.numfree[i] = fini ? -1 : 0;
+        while (p) {
+            PyTupleObject *q = p;
+            p = (PyTupleObject *)(p->ob_item[0]);
+            PyObject_GC_Del(q);
+        }
+    }
+#endif
+"""
+assert re.sub(r"\s+", "", body) == re.sub(r"\s+", "", expected), (
+    "maybe_freelist_clear: preserve loop assignment, bounds, increment, "
+    "freelist reset, fini count, and linked-list deletion order"
+)
+print("maybe_freelist_clear C89 index and teardown order: PASS")