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Fix autoNoType with multiple auto variables (#5012)

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chrchr-github 2023-04-30 20:36:27 +02:00 committed by GitHub
parent 2bc4ee925e
commit 269850a62d
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3 changed files with 21 additions and 5 deletions
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2
lib/token.cpp
View File

@ -2286,6 +2286,8 @@ std::pair<const Token*, const Token*> Token::typeDecl(const Token* tok, bool poi
varTok = varTok->next();
while (Token::Match(varTok, "%name% ::"))
varTok = varTok->tokAt(2);
if (Token::simpleMatch(varTok, "(") && Token::simpleMatch(varTok->astOperand1(), "."))
varTok = varTok->astOperand1()->astOperand1();
std::pair<const Token*, const Token*> r = typeDecl(varTok);
if (r.first)
return r;

11
test/testautovariables.cpp
View File

@ -2274,7 +2274,7 @@ private:
"}");
ASSERT_EQUALS("", errout.str());
check("auto f() {\n"
check("std::vector<int>::iterator f() {\n"
" std::vector<int> x;\n"
" auto it = x.begin();\n"
" return it;\n"
@ -2288,7 +2288,7 @@ private:
"}");
ASSERT_EQUALS("[test.cpp:3] -> [test.cpp:2] -> [test.cpp:4]: (error) Returning iterator to local container 'x' that will be invalid when returning.\n", errout.str());
check("auto f() {\n"
check("int* f() {\n"
" std::vector<int> x;\n"
" auto p = x.data();\n"
" return p;\n"
@ -2315,7 +2315,7 @@ private:
"[test.cpp:3] -> [test.cpp:4] -> [test.cpp:2] -> [test.cpp:4]: (error) Returning pointer to local variable 'v' that will be invalid when returning.\n",
errout.str());
check("auto f(std::vector<int> x) {\n"
check("std::vector<int>::iterator f(std::vector<int> x) {\n"
" auto it = x.begin();\n"
" return it;\n"
"}");
@ -2447,11 +2447,12 @@ private:
errout.str());
check("std::vector<int> g();\n"
"auto f() {\n"
"std::vector<int>::iterator f() {\n"
" auto it = g().begin();\n"
" return it;\n"
"}");
ASSERT_EQUALS("[test.cpp:3] -> [test.cpp:4]: (error) Returning iterator that will be invalid when returning.\n",
ASSERT_EQUALS("[test.cpp:3] -> [test.cpp:3] -> [test.cpp:4]: (error) Using iterator that is a temporary.\n"
"[test.cpp:3] -> [test.cpp:4]: (error) Returning iterator that will be invalid when returning.\n",
errout.str());
check("std::vector<int> g();\n"

13
test/testsymboldatabase.cpp
View File

@ -8451,6 +8451,19 @@ private:
ASSERT_EQUALS(3, tok->variable()->valueType()->constness);
ASSERT_EQUALS(1, tok->variable()->valueType()->pointer);
}
{
GET_SYMBOL_DB("std::string f(const std::string& s) {\n"
" auto t = s.substr(3, 7);\n"
" auto r = t.substr(1, 2);\n"
" return r;\n"
"}\n");
ASSERT_EQUALS("", errout.str());
const Token* tok = tokenizer.tokens();
tok = Token::findsimplematch(tok, "auto r");
ASSERT(tok && tok->valueType());
ASSERT_EQUALS("container(std :: string|wstring|u16string|u32string)", tok->valueType()->str());
}
}
void valueTypeThis() {