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Fixed #8959 ("(debug) Unknown type 'x'" with using/alias) (#1635) 

* Fixed #8959 ("(debug) Unknown type 'x'" with using/alias)

* fix cppcheck warning
This commit is contained in:
IOBYTE 2019-01-31 17:57:37 -05:00 committed by Daniel Marjamäki
parent 91de606243
commit 98fc6d1d32
3 changed files with 47 additions and 8 deletions
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28
lib/templatesimplifier.cpp
View File

@ -932,12 +932,16 @@ void TemplateSimplifier::simplifyTemplateAliases()
startToken = startToken->tokAt(-5);
while (Token::Match(startToken, "%name%|<|>|>>|,"))
startToken = startToken->previous();
if (!Token::Match(startToken, "[;{}] template <"))
// handle case where 'template' is first token
if (!startToken) {
if (!Token::simpleMatch(mTokenList.front(), "template <"))
continue;
} else if (!Token::Match(startToken, "[;{}] template <"))
continue;
// alias parameters..
std::vector<const Token *> aliasParameters;
getTemplateParametersInDeclaration(startToken->tokAt(3), aliasParameters);
getTemplateParametersInDeclaration(startToken ? startToken->tokAt(3) : mTokenList.front()->tokAt(2), aliasParameters);
std::map<std::string, unsigned int> aliasParameterNames;
for (unsigned int argnr = 0; argnr < aliasParameters.size(); ++argnr)
aliasParameterNames[aliasParameters[argnr]->str()] = argnr;
@ -1016,7 +1020,7 @@ void TemplateSimplifier::simplifyTemplateAliases()
}
if (endToken) {
// Remove all template instantiations in template alias
for (const Token *tok = startToken; tok != endToken; tok = tok->next()) {
for (const Token *tok = startToken ? startToken : mTokenList.front(); tok != endToken; tok = tok->next()) {
if (!Token::Match(tok, "%name% <"))
continue;
std::list<TokenAndName>::iterator it = std::find_if(mTemplateInstantiations.begin(),
@ -1031,7 +1035,21 @@ void TemplateSimplifier::simplifyTemplateAliases()
mTemplateInstantiations.erase(it,next);
}
Token::eraseTokens(startToken, endToken);
// find declaration
const std::list<TokenAndName>::iterator it2 = std::find_if(mTemplateDeclarations.begin(),
mTemplateDeclarations.end(),
FindToken(startToken ? startToken : mTokenList.front()));
if (startToken)
eraseTokens(startToken, endToken);
else {
eraseTokens(mTokenList.front(), endToken);
deleteToken(mTokenList.front());
}
// remove declaration
if (it2 != mTemplateDeclarations.end())
mTemplateDeclarations.erase(it2);
}
}
}
@ -1125,6 +1143,8 @@ int TemplateSimplifier::getTemplateNamePosition(const Token *tok)
int namepos = 0;
if (Token::Match(tok, "> class|struct|union %type% :|<|;|{"))
namepos = 2;
else if (Token::Match(tok, "> using %name% ="))
namepos = 2;
else if (getTemplateNamePositionTemplateVariable(tok, namepos))
;
else if (!getTemplateNamePositionTemplateFunction(tok, namepos))

20
test/testsimplifytemplate.cpp
View File

@ -135,6 +135,7 @@ private:
TEST_CASE(template95); // #7417
TEST_CASE(template96); // #7854
TEST_CASE(template97);
TEST_CASE(template98); // #8959
TEST_CASE(template_specialization_1); // #7868 - template specialization template <typename T> struct S<C<T>> {..};
TEST_CASE(template_specialization_2); // #7868 - template specialization template <typename T> struct S<C<T>> {..};
TEST_CASE(template_enum); // #6299 Syntax error in complex enum declaration (including template)
@ -2052,6 +2053,25 @@ private:
ASSERT_EQUALS(exp, tok(code));
}
void template98() { // #8959
const char code[] = "template <typename T>\n"
"using unique_ptr_with_deleter = std::unique_ptr<T, std::function<void(T*)>>;\n"
"class A {};\n"
"static void func() {\n"
" unique_ptr_with_deleter<A> tmp(new A(), [](A* a) {\n"
" delete a;\n"
" });\n"
"}";
const char exp[] = "; "
"class A { } ; "
"static void func ( ) { "
"std :: unique_ptr < A , std :: function < void ( A * ) > > tmp ( new A ( ) , [ ] ( A * a ) { "
"delete a ; "
"} ) ; "
"}";
ASSERT_EQUALS(exp, tok(code));
}
void template_specialization_1() { // #7868 - template specialization template <typename T> struct S<C<T>> {..};
const char code[] = "template <typename T> struct C {};\n"
"template <typename T> struct S {a};\n"

5
test/testvarid.cpp
View File

@ -2144,9 +2144,8 @@ private:
void varid_templateUsing() { // #5781 #7273
const char code[] = "template<class T> using X = Y<T,4>;\n"
"X<int> x;";
TODO_ASSERT_EQUALS("\nY<int,4> x@1;\n",
"1: template < class T > using X = Y < T , 4 > ;\n"
"2: X < int > x@1 ;\n",
ASSERT_EQUALS("1: ;\n"
"2: Y < int , 4 > x@1 ;\n",
tokenize(code));
}