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Fix #13769 (TokenList: throw internal error when assertion fails) #7459

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Fix #13769 (TokenList: throw internal error when assertion fails) #7459

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cb842a7
Fix #13769 (TokenList: throw internal error when assertion fails)
danmar Apr 12, 2025
44bf529
suppress
danmar Apr 12, 2025
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10 changes: 2 additions & 8 deletions lib/tokenlist.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -45,14 +45,7 @@

#include <simplecpp.h>

//#define N_ASSERT_LANG

#ifndef N_ASSERT_LANG
#include <cassert>
#define ASSERT_LANG(x) assert(x)
#else
#define ASSERT_LANG(x)
#endif
#define ASSERT_LANG(x) do { if (!(x)) throw InternalError(nullptr, __FILE__ ":" + std::to_string(__LINE__) + ": Assertion " #x " failed"); } while (0)

// How many compileExpression recursions are allowed?
// For practical code this could be endless. But in some special torture test
Expand Down Expand Up @@ -2302,6 +2295,7 @@ void TokenList::setLang(Standards::Language lang, bool force)
ASSERT_LANG(lang != Standards::Language::None);
if (!force)
{
// cppcheck-suppress premium-misra-cpp-2023-19.3.3; this is a false positive, will be fixed
ASSERT_LANG(mLang == Standards::Language::None);
}

Expand Down
7 changes: 7 additions & 0 deletions test/testtokenlist.cpp
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Expand Up @@ -49,6 +49,7 @@ class TestTokenList : public TestFixture {
TEST_CASE(isKeyword);
TEST_CASE(notokens);
TEST_CASE(ast1);
TEST_CASE(setLangInternalError);
}

// inspired by #5895
Expand Down Expand Up @@ -191,6 +192,12 @@ class TestTokenList : public TestFixture {
}
tokenlist.createAst(); // do not crash
}

void setLangInternalError() const {
TokenList tokenList(nullptr);
tokenList.setLang(Standards::Language::C, true);
ASSERT_THROW_INTERNAL(tokenList.setLang(Standards::Language::CPP, false), InternalError::INTERNAL);
}
};

REGISTER_TEST(TestTokenList)
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