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Fix #3462 FN missed class members in copy operator of derived class (#3837)

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chrchr-github 2022-02-16 21:30:19 +01:00 committed by GitHub
parent 6488cb6e76
commit b07814f329
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2 changed files with 39 additions and 5 deletions
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5
lib/checkclass.cpp
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@ -819,9 +819,8 @@ void CheckClass::initializeVarList(const Function &func, std::list<const Functio
}
// Calling member function?
else if (Token::simpleMatch(ftok, "operator= (") &&
ftok->previous()->str() != "::") {
if (ftok->function() && ftok->function()->nestedIn == scope) {
else if (Token::simpleMatch(ftok, "operator= (")) {
if (ftok->function()) {
const Function *member = ftok->function();
// recursive call
// assume that all variables are initialized

39
test/testconstructors.cpp
View File

@ -120,7 +120,7 @@ private:
TEST_CASE(initvar_union);
TEST_CASE(initvar_delegate); // ticket #4302
TEST_CASE(initvar_delegate2);
TEST_CASE(initvar_derived_class); // ticket #10161
TEST_CASE(initvar_derived_class);
TEST_CASE(initvar_private_constructor); // BUG 2354171 - private constructor
TEST_CASE(initvar_copy_constructor); // ticket #1611
@ -1251,7 +1251,7 @@ private:
}
void initvar_derived_class() {
check("class Base {\n"
check("class Base {\n" // #10161
"public:\n"
" virtual void foo() = 0;\n"
" int x;\n" // <- uninitialized
@ -1263,6 +1263,41 @@ private:
" void foo() override;\n"
"};");
ASSERT_EQUALS("[test.cpp:9]: (warning) Member variable 'Base::x' is not initialized in the constructor. Maybe it should be initialized directly in the class Base?\n", errout.str());
check("struct A {\n" // #3462
" char ca;\n"
" A& operator=(const A& a) {\n"
" ca = a.ca;\n"
" return *this;\n"
" }\n"
"};\n"
"struct B : public A {\n"
" char cb;\n"
" B& operator=(const B& b) {\n"
" A::operator=(b);\n"
" return *this;\n"
" }\n"
"};\n");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'B::cb' is not assigned a value in 'B::operator='.\n", errout.str());
check("struct A {\n"
" char ca;\n"
" A& operator=(const A& a) {\n"
" return *this;\n"
" }\n"
"};\n"
"struct B : public A {\n"
" char cb;\n"
" B& operator=(const B& b) {\n"
" A::operator=(b);\n"
" return *this;\n"
" }\n"
"};\n");
ASSERT_EQUALS("[test.cpp:3]: (warning) Member variable 'A::ca' is not assigned a value in 'A::operator='.\n"
"[test.cpp:9]: (warning) Member variable 'B::cb' is not assigned a value in 'B::operator='.\n"
"[test.cpp:9]: (warning) Member variable 'B::ca' is not assigned a value in 'B::operator='.\n",
errout.str());
}
void initvar_private_constructor() {