Check in LLVM r95781.
diff --git a/utils/lint/cpp_lint.py b/utils/lint/cpp_lint.py
new file mode 100755
index 0000000..07fad58
--- /dev/null
+++ b/utils/lint/cpp_lint.py
@@ -0,0 +1,94 @@
+#!/usr/bin/python
+#
+# Checks C++ files to make sure they conform to LLVM standards, as specified in
+# http://llvm.org/docs/CodingStandards.html .
+#
+# TODO: add unittests for the verifier functions:
+# http://docs.python.org/library/unittest.html .
+
+import common_lint
+import re
+import sys
+
+def VerifyIncludes(filename, lines):
+ """Makes sure the #includes are in proper order and no disallows files are
+ #included.
+
+ Args:
+ filename: the file under consideration as string
+ lines: contents of the file as string array
+ """
+ lint = []
+
+ include_gtest_re = re.compile(r'^#include "gtest/(.*)"')
+ include_llvm_re = re.compile(r'^#include "llvm/(.*)"')
+ include_support_re = re.compile(r'^#include "(Support/.*)"')
+ include_config_re = re.compile(r'^#include "(Config/.*)"')
+ include_system_re = re.compile(r'^#include <(.*)>')
+
+ DISALLOWED_SYSTEM_HEADERS = ['iostream']
+
+ line_num = 1
+ prev_config_header = None
+ prev_system_header = None
+ for line in lines:
+ # TODO: implement private headers
+ # TODO: implement gtest headers
+ # TODO: implement top-level llvm/* headers
+ # TODO: implement llvm/Support/* headers
+
+ # Process Config/* headers
+ config_header = include_config_re.match(line)
+ if config_header:
+ curr_config_header = config_header.group(1)
+ if prev_config_header:
+ if prev_config_header > curr_config_header:
+ lint.append((filename, line_num,
+ 'Config headers not in order: "%s" before "%s"' % (
+ prev_config_header, curr_config_header)))
+
+ # Process system headers
+ system_header = include_system_re.match(line)
+ if system_header:
+ curr_system_header = system_header.group(1)
+
+ # Is it blacklisted?
+ if curr_system_header in DISALLOWED_SYSTEM_HEADERS:
+ lint.append((filename, line_num,
+ 'Disallowed system header: <%s>' % curr_system_header))
+ elif prev_system_header:
+ # Make sure system headers are alphabetized amongst themselves
+ if prev_system_header > curr_system_header:
+ lint.append((filename, line_num,
+ 'System headers not in order: <%s> before <%s>' % (
+ prev_system_header, curr_system_header)))
+
+ prev_system_header = curr_system_header
+
+ line_num += 1
+
+ return lint
+
+
+class CppLint(common_lint.BaseLint):
+ MAX_LINE_LENGTH = 80
+
+ def RunOnFile(self, filename, lines):
+ lint = []
+ lint.extend(VerifyIncludes(filename, lines))
+ lint.extend(common_lint.VerifyLineLength(filename, lines,
+ CppLint.MAX_LINE_LENGTH))
+ lint.extend(common_lint.VerifyTabs(filename, lines))
+ lint.extend(common_lint.VerifyTrailingWhitespace(filename, lines))
+ return lint
+
+
+def CppLintMain(filenames):
+ all_lint = common_lint.RunLintOverAllFiles(CppLint(), filenames)
+ for lint in all_lint:
+ print '%s:%d:%s' % (lint[0], lint[1], lint[2])
+ return 0
+
+
+if __name__ == '__main__':
+ sys.exit(CppLintMain(sys.argv[1:]))