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 +1,54 @@
+#!/usr/bin/env python3
+"""Check set_issuperset's C89 declarations and unchanged iterator ownership."""
+import re
+import sys
+from pathlib import Path
+
+source = Path(sys.argv[1]).read_text()
+match = re.search(
+    r"static PyObject \*\nset_issuperset\(PySetObject \*so, PyObject \*other\)"
+    r"\n\{(.*?)\n\}",
+    source,
+    re.S,
+)
+assert match, "set_issuperset not found"
+body = match.group(1)
+assert re.match(r"\s*PyObject \*key;\s*PyObject \*it;", body), (
+    "set_issuperset: key and it must be declared in the initial declaration "
+    "block; late PyObject declaration after PyAnySet_Check is not C89 compatible"
+)
+expected = """
+    PyObject *key;
+    PyObject *it;
+
+    if (PyAnySet_Check(other)) {
+        return set_issubset((PySetObject *)other, (PyObject *)so);
+    }
+
+    it = PyObject_GetIter(other);
+    if (it == NULL) {
+        return NULL;
+    }
+    while ((key = PyIter_Next(it)) != NULL) {
+        int rv = set_contains_key(so, key);
+        Py_DECREF(key);
+        if (rv < 0) {
+            Py_DECREF(it);
+            return NULL;
+        }
+        if (!rv) {
+            Py_DECREF(it);
+            Py_RETURN_FALSE;
+        }
+    }
+    Py_DECREF(it);
+    if (PyErr_Occurred()) {
+        return NULL;
+    }
+    Py_RETURN_TRUE;
+"""
+assert re.sub(r"\s+", "", body) == re.sub(r"\s+", "", expected), (
+    "preserve the set fast path, iterator acquisition, loop, reference ownership, "
+    "error handling, and return behavior"
+)
+print("set_issuperset C89 declarations and iterator ownership: PASS")