Files
Claro/tools/validate_count_expression_cleanup.py
T

53 lines
1.9 KiB
Python

#!/usr/bin/env python3
"""Regression check for discarded COUNT expression Values."""
from pathlib import Path
import os
import subprocess
import sys
import tempfile
ROOT = Path(__file__).resolve().parent.parent
def main() -> int:
if os.name == "nt":
print("SKIP: LeakSanitizer check is POSIX-only")
return 0
with tempfile.TemporaryDirectory(prefix="claro-count-cleanup-") as tmp:
tmp_path = Path(tmp)
binary = tmp_path / "claro-lsan"
script = tmp_path / "count_expressions.claro"
script.write_text(
'SET items TO LIST\n'
+ ''.join('COUNT items AS item_count\n' for _ in range(2000))
+ 'SAY item_count\n', encoding="utf-8"
)
build = subprocess.run(
["gcc", "-std=c99", "-O0", "-g", "-fsanitize=address,undefined",
"src/claro.c", "-o", str(binary), "-lm"],
cwd=ROOT, text=True, capture_output=True,
)
if build.returncode:
print(build.stdout, end="")
print(build.stderr, end="", file=sys.stderr)
return build.returncode
run = subprocess.run(
[str(binary), str(script)], cwd=ROOT, text=True, capture_output=True,
env={**os.environ, "ASAN_OPTIONS": "detect_leaks=1"},
)
if run.returncode or "LeakSanitizer" in run.stderr or "SUMMARY:" in run.stderr:
print("FAIL: discarded COUNT expression values still leak")
print(run.stdout, end="")
print(run.stderr, end="", file=sys.stderr)
return 1
if run.stdout != "0\n":
print("FAIL: COUNT cleanup probe produced the wrong output")
print(run.stdout, end="", file=sys.stderr)
return 1
print("PASS: discarded COUNT expression values are released")
return 0
if __name__ == "__main__":
raise SystemExit(main())