forked from OSchip/llvm-project
122 lines
4.0 KiB
Python
122 lines
4.0 KiB
Python
#!/usr/bin/env python
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#
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#===- check-analyzer-fixit.py - Static Analyzer test helper ---*- python -*-===#
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===------------------------------------------------------------------------===#
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#
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# This file copy-pasted mostly from the Clang-Tidy's 'check_clang_tidy.py'.
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#
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#===------------------------------------------------------------------------===#
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r"""
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Clang Static Analyzer test helper
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=================================
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This script runs the Analyzer in fix-it mode and verify fixes, warnings, notes.
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Usage:
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check-analyzer-fixit.py <source-file> <temp-file> [analyzer arguments]
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Example:
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// RUN: %check-analyzer-fixit %s %t -analyzer-checker=core
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"""
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import argparse
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import os
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import re
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import subprocess
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import sys
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def write_file(file_name, text):
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with open(file_name, 'w') as f:
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f.write(text)
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def run_test_once(args, extra_args):
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input_file_name = args.input_file_name
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temp_file_name = args.temp_file_name
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clang_analyzer_extra_args = extra_args
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file_name_with_extension = input_file_name
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_, extension = os.path.splitext(file_name_with_extension)
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if extension not in ['.c', '.hpp', '.m', '.mm']:
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extension = '.cpp'
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temp_file_name = temp_file_name + extension
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with open(input_file_name, 'r') as input_file:
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input_text = input_file.read()
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# Remove the contents of the CHECK lines to avoid CHECKs matching on
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# themselves. We need to keep the comments to preserve line numbers while
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# avoiding empty lines which could potentially trigger formatting-related
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# checks.
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cleaned_test = re.sub('// *CHECK-[A-Z0-9\-]*:[^\r\n]*', '//', input_text)
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write_file(temp_file_name, cleaned_test)
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original_file_name = temp_file_name + ".orig"
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write_file(original_file_name, cleaned_test)
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try:
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builtin_include_dir = subprocess.check_output(
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['clang', '-print-file-name=include'], stderr=subprocess.STDOUT).decode()
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except subprocess.CalledProcessError as e:
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print('Cannot print Clang include directory: ' + e.output.decode())
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builtin_include_dir = os.path.normpath(builtin_include_dir)
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args = (['clang', '-cc1', '-internal-isystem', builtin_include_dir,
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'-nostdsysteminc', '-analyze', '-analyzer-constraints=range',
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'-analyzer-config', 'apply-fixits=true']
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+ clang_analyzer_extra_args + ['-verify', temp_file_name])
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print('Running ' + str(args) + '...')
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try:
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clang_analyzer_output = \
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subprocess.check_output(args, stderr=subprocess.STDOUT).decode()
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except subprocess.CalledProcessError as e:
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print('Clang Static Analyzer test failed:\n' + e.output.decode())
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raise
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print('----------------- Clang Static Analyzer output -----------------\n' +
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clang_analyzer_output +
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'\n--------------------------------------------------------------')
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try:
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diff_output = subprocess.check_output(
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['diff', '-u', original_file_name, temp_file_name],
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stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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diff_output = e.output
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print('----------------------------- Fixes ----------------------------\n' +
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diff_output.decode() +
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'\n--------------------------------------------------------------')
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try:
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subprocess.check_output(
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['FileCheck', '-input-file=' + temp_file_name, input_file_name,
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'-check-prefixes=CHECK-FIXES', '-strict-whitespace'],
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stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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print('FileCheck failed:\n' + e.output.decode())
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raise
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('input_file_name')
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parser.add_argument('temp_file_name')
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args, extra_args = parser.parse_known_args()
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run_test_once(args, extra_args)
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if __name__ == '__main__':
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main()
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