add lint script to check for stdint types without std:: prefix

Author: martinus

scripts/lint/lint-stdint-types-modules.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import re
+import sys
+
+ROOT = Path(__file__).resolve().parents[2]
+HEADER = ROOT / "include" / "ankerl" / "unordered_dense.h"
+
+
+def build_query():
+    # Literal names drawn from C++ wrapper headers (<cstddef>, <ctime>, <cstdio>, <cwchar>)
+    names = [
+        r"u?int(?:_fast|_least)?\d{1,2}_t",
+        r"s?size_t",
+        r"ptrdiff_t",
+        r"u?intmax_t",
+        r"u?intptr_t",
+        r"nullptr_t",
+        r"max_align_t",
+        r"time_t",
+        r"clock_t",
+        r"tm",
+        r"FILE",
+        r"fpos_t",
+        r"mbstate_t",
+        r"wint_t",
+    ]
+    literal_alts = "|".join(n for n in names)
+    return re.compile(r"(?<!std::)\b(?:" + literal_alts + r")\b")
+
+
+def main():
+    errors = []
+    query = build_query()
+    for lineno, line in enumerate(HEADER.read_text().splitlines(), 1):
+        if query.search(line):
+            errors.append(f"{HEADER}:{lineno}: {line}")
+
+    if errors:
+        print("Found stdint types without std:: prefix:")
+        print("\n".join(errors))
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()