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Fix syntax error with lambda captures (#1954) 

* Fix syntax error with lambda captures

* Fix issue when using initializer in lambdas
This commit is contained in:
Paul Fultz II 2019-07-05 05:26:01 -05:00 committed by Daniel Marjamäki
parent afce191db1
commit 5801fb26f0
2 changed files with 10 additions and 1 deletions
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3
lib/tokenize.cpp
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@ -9250,7 +9250,8 @@ void Tokenizer::findGarbageCode() const
syntaxError(tok);
if (Token::Match(tok, "[+-] [;,)]}]") && !(isCPP() && Token::Match(tok->previous(), "operator [+-] ;")))
syntaxError(tok);
if (Token::simpleMatch(tok, ",")) {
if (Token::simpleMatch(tok, ",") &&
!Token::Match(tok->tokAt(-2), "[ = , &|%name%")) {
if (Token::Match(tok->previous(), "(|[|{|<|%assign%|%or%|%oror%|==|!=|+|-|/|!|>=|<=|~|^|::|sizeof|throw|decltype|typeof"))
syntaxError(tok);
if (Token::Match(tok->next(), ")|]|>|%assign%|%or%|%oror%|==|!=|/|>=|<=|&&"))

8
test/testtokenize.cpp
View File

@ -459,6 +459,7 @@ private:
TEST_CASE(checkEnableIf);
TEST_CASE(checkTemplates);
TEST_CASE(checkNamespaces);
TEST_CASE(checkLambdas);
// #9052
TEST_CASE(noCrash1);
@ -7834,6 +7835,13 @@ private:
ASSERT_NO_THROW(tokenizeAndStringify("namespace x { namespace y { namespace z {}}}"))
}
void checkLambdas() {
ASSERT_NO_THROW(tokenizeAndStringify("auto f(int& i) { return [=, &i] {}; }"))
ASSERT_NO_THROW(tokenizeAndStringify("auto f(int& i) { return [&, i] {}; }"))
ASSERT_NO_THROW(tokenizeAndStringify("auto f(int& i) { return [&, i = std::move(i)] {}; }"))
ASSERT_NO_THROW(tokenizeAndStringify("auto f(int& i) { return [=, i = std::move(i)] {}; }"))
}
void noCrash1() {
ASSERT_NO_THROW(tokenizeAndStringify(
"struct A {\n"