5b4f543c3b
This allows us to compile patterns like 'extern "C"'. Fixes long standing open issues in the MC unit test.
201 lines
9.0 KiB
Python
Executable File
201 lines
9.0 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Cppcheck - A tool for static C/C++ code analysis
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# Copyright (C) 2007-2015 Daniel Marjamaeki and Cppcheck team.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import unittest
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import matchcompiler
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class MatchCompilerTest(unittest.TestCase):
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def setUp(self):
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self.mc = matchcompiler.MatchCompiler(verify_mode=False)
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def test_parseMatch(self):
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self.assertEqual(self.mc.parseMatch(' Token::Match(tok, ";") ', 2), [
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'Token::Match(tok, ";")', 'tok', ' ";"'])
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self.assertEqual(self.mc.parseMatch(' Token::Match(tok,', 2), None)
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# multiline Token::Match is not supported yet
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self.assertEqual(self.mc.parseMatch(' Token::Match(Token::findsimplematch(tok,")"), ";")', 2), [
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'Token::Match(Token::findsimplematch(tok,")"), ";")', 'Token::findsimplematch(tok,")")', ' ";"']) # inner function call
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def test_replaceTokenMatch(self):
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input = 'if (Token::Match(tok, "foobar")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match1(tok)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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input = 'if (Token::Match(tok->next()->next(), "foobar %type% %num%")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match2(tok->next()->next())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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input = 'if (Token::Match(tok, "foo\"special\"bar %num%")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (match3(tok)) {')
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self.assertEqual(2, len(self.mc._matchStrs))
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# test that non-static patterns get passed on unmatched
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input = 'if (Token::Match(tok, "struct " + varname)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (Token::Match(tok, "struct " + varname)) {')
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# test that non-static patterns get passed on unmatched
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input = 'if (Token::Match(tok, "extern \"C\" " + varname)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (Token::Match(tok, "extern \"C\" " + varname)) {')
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def test_replaceTokenMatchWithVarId(self):
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input = 'if (Token::Match(tok, "foobar %varid%", 123)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match1(tok, 123)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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input = 'if (Token::Match(tok->next()->next(), "%varid% foobar", tok->varId())) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (match2(tok->next()->next(), tok->varId())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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input = 'if (Token::Match(tok, "foo\"special\"bar %type% %varid%", my_varid_cache)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (match3(tok, my_varid_cache)) {')
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self.assertEqual(2, len(self.mc._matchStrs))
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self.assertEqual(2, self.mc._matchStrs['foo"special"bar'])
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# test caching: reuse existing matchX()
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input = 'if (Token::Match(tok, "foobar %varid%", 123)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match1(tok, 123)) {')
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self.assertEqual(2, len(self.mc._matchStrs))
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# two in one line
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input = 'if (Token::Match(tok, "foobar2 %varid%", 123) || Token::Match(tok, "%type% %varid%", 123)) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match4(tok, 123) || match5(tok, 123)) {')
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self.assertEqual(3, len(self.mc._matchStrs))
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def test_replaceTokenSimpleMatch(self):
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input = 'if (Token::simpleMatch(tok, "foobar")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match1(tok)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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input = 'if (Token::simpleMatch(tok->next()->next(), "foobar")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(output, 'if (match1(tok->next()->next())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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input = 'if (Token::simpleMatch(tok, "foo\"special\"bar")) {'
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output = self.mc._replaceTokenMatch(input)
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self.assertEqual(
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output, 'if (match2(tok)) {')
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self.assertEqual(2, len(self.mc._matchStrs))
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self.assertEqual(2, self.mc._matchStrs['foo\"special\"bar'])
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def test_replaceTokenFindSimpleMatch(self):
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input = 'if (Token::findsimplematch(tok, "foobar")) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(output, 'if (findmatch1(tok)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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input = 'if (Token::findsimplematch(tok->next()->next(), "foobar", tok->link())) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(
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output, 'if (findmatch2(tok->next()->next(), tok->link())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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input = 'if (Token::findsimplematch(tok, "foo\"special\"bar")) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(
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output, 'if (findmatch3(tok)) {')
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self.assertEqual(2, len(self.mc._matchStrs))
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self.assertEqual(2, self.mc._matchStrs['foo\"special\"bar'])
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def test_replaceTokenFindMatch(self):
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input = 'if (Token::findmatch(tok, "foobar")) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(output, 'if (findmatch1(tok)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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# findmatch with varid
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input = 'if (Token::findmatch(tok, "foobar %varid%", tok->varId())) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(output, 'if (findmatch2(tok, tok->varId())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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# findmatch with end token
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input = 'if (Token::findmatch(tok->next()->next(), "foobar %type%", tok->link())) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(
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output, 'if (findmatch3(tok->next()->next(), tok->link())) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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# findmatch with end token and varid
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input = 'if (Token::findmatch(tok->next()->next(), "foobar %type% %varid%", tok->link(), 123)) {'
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output = self.mc._replaceTokenFindMatch(input)
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self.assertEqual(
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output, 'if (findmatch4(tok->next()->next(), tok->link(), 123)) {')
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self.assertEqual(1, len(self.mc._matchStrs))
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self.assertEqual(1, self.mc._matchStrs['foobar'])
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def test_parseStringComparison(self):
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input = 'str == "abc"'
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res = self.mc._parseStringComparison(input, 5) # offset '5' is chosen as an abritary start offset to look for "
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self.assertEqual(2, len(res))
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self.assertEqual(7, res[0])
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self.assertEqual(12, res[1])
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self.assertEqual('str == matchStr', input[:res[0]] + "matchStr" + input[res[1]:])
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input = 'str == "a\\"b\\"c"'
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res = self.mc._parseStringComparison(input, 5)
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self.assertEqual(2, len(res))
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self.assertEqual(7, res[0])
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self.assertEqual(16, res[1])
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self.assertEqual('str == matchStr', input[:res[0]] + "matchStr" + input[res[1]:])
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def test_replaceCStrings(self):
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# str() ==
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input = 'if (tok2->str() == "abc") {'
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output = self.mc._replaceCStrings(input)
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self.assertEqual("if (tok2->str() == matchStr1) {", output)
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# str() !=
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input = 'if (tok2->str() != "xyz") {'
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output = self.mc._replaceCStrings(input)
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self.assertEqual("if (tok2->str() != matchStr2) {", output)
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# strAt()
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input = 'if (match16(parent->tokAt(-3)) && tok->strAt(1) == ")")'
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output = self.mc._replaceCStrings(input)
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self.assertEqual('if (match16(parent->tokAt(-3)) && tok->strAt(1) == matchStr3)', output)
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if __name__ == '__main__':
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unittest.main()
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