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Fixed #3352 (False positive: member variable not initialized (3D array))

This commit is contained in:
Daniel Marjamäki 2011-11-22 18:45:25 +01:00
parent 17f891ad34
commit add2b3706b
2 changed files with 24 additions and 22 deletions
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30
lib/checkclass.cpp
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@ -458,22 +458,17 @@ void CheckClass::initializeVarList(const Function &func, std::list<std::string>
}
// Assignment of array item of member variable?
else if (Token::Match(ftok, "%var% [") &&
Token::simpleMatch(ftok->next()->link(), "] =")) {
assignVar(ftok->str(), scope, usage);
else if (Token::Match(ftok, "%var% [|.")) {
const Token *tok2 = ftok;
while (tok2) {
if (Token::simpleMatch(tok2->next(), "["))
tok2 = tok2->next()->link();
else if (Token::Match(tok2->next(), ". %var%"))
tok2 = tok2->tokAt(2);
else
break;
}
// Assignment of member of array item of member variable?
else if (Token::Match(ftok, "%var% [ ") &&
(Token::Match(ftok->next()->link(), "] . %var% =") ||
Token::Match(ftok->next()->link(), "] . %var% . %var% ="))) {
assignVar(ftok->str(), scope, usage);
}
// Assignment of array item of member variable?
else if (Token::Match(ftok, "%var% [") &&
Token::simpleMatch(ftok->next()->link(), "] [") &&
Token::simpleMatch(ftok->next()->link()->next()->link(), "] =")) {
if (Token::Match(tok2, "%any% ="))
assignVar(ftok->str(), scope, usage);
}
@ -482,11 +477,6 @@ void CheckClass::initializeVarList(const Function &func, std::list<std::string>
assignVar(ftok->next()->str(), scope, usage);
}
// Assignment of struct member of member variable?
else if (Token::Match(ftok, "%var% . %any% =")) {
assignVar(ftok->str(), scope, usage);
}
// The functions 'clear' and 'Clear' are supposed to initialize variable.
if (Token::Match(ftok, "%var% . clear|Clear (")) {
assignVar(ftok->str(), scope, usage);

12
test/testclass.cpp
View File

@ -77,6 +77,7 @@ private:
TEST_CASE(uninitVarArray6);
TEST_CASE(uninitVarArray7);
TEST_CASE(uninitVarArray2D);
TEST_CASE(uninitVarArray3D);
TEST_CASE(uninitVarStruct1); // ticket #2172
TEST_CASE(uninitVarStruct2); // ticket #838
TEST_CASE(uninitMissingFuncDef); // can't expand function in constructor
@ -2433,6 +2434,17 @@ private:
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray3D() {
checkUninitVar("class John\n"
"{\n"
"private:\n"
" char a[2][2][2];\n"
"public:\n"
" John() { a[0][0][0] = 0; }\n"
"};\n");
ASSERT_EQUALS("", errout.str());
}
void uninitVarStruct1() { // ticket #2172
checkUninitVar("class A\n"
"{\n"