C++: Ignore explicit template instantiations

Defined in section 14.7.2 of the standard.

Fixes completion for std::string.

The following explicit instantiation appears in bits/basic_string.tcc:
  extern template class basic_string<char>;

This is wrongfully considered a specialization for a forward declaration
(like `template<> class basic_string<char>` is).

Introduce a new Symbol type for explicit instantiations.

Use-case:
template<class T>
struct Foo { T bar; };

template class Foo<int>;

void func()
{
    Foo<int> foo;
    foo.bar; // bar not highlighted
}

Change-Id: I9e35c8c32f6b78fc87b4f4f1fc903b42cfbd2c2b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
This commit is contained in:
Orgad Shaneh
2015-06-20 22:37:53 +03:00
committed by Orgad Shaneh
parent 70bc5e842c
commit a77e32800c
21 changed files with 208 additions and 14 deletions

View File

@@ -2367,11 +2367,15 @@ bool Bind::visit(ParameterDeclarationAST *ast)
bool Bind::visit(TemplateDeclarationAST *ast)
{
Template *templ = control()->newTemplate(ast->firstToken(), 0);
templ->setStartOffset(tokenAt(ast->firstToken()).utf16charsBegin());
templ->setEndOffset(tokenAt(ast->lastToken() - 1).utf16charsEnd());
ast->symbol = templ;
Scope *previousScope = switchScope(templ);
Scope *scope = 0;
if (ast->less_token)
scope = control()->newTemplate(ast->firstToken(), 0);
else
scope = control()->newExplicitInstantiation(ast->firstToken(), 0);
scope->setStartOffset(tokenAt(ast->firstToken()).utf16charsBegin());
scope->setEndOffset(tokenAt(ast->lastToken() - 1).utf16charsEnd());
ast->symbol = scope;
Scope *previousScope = switchScope(scope);
for (DeclarationListAST *it = ast->template_parameter_list; it; it = it->next) {
this->declaration(it->value);
@@ -2380,12 +2384,17 @@ bool Bind::visit(TemplateDeclarationAST *ast)
this->declaration(ast->declaration);
(void) switchScope(previousScope);
if (Symbol *decl = templ->declaration()) {
templ->setSourceLocation(decl->sourceLocation(), translationUnit());
templ->setName(decl->name());
Symbol *decl = 0;
if (Template *templ = scope->asTemplate())
decl = templ->declaration();
else if (ExplicitInstantiation *inst = scope->asExplicitInstantiation())
decl = inst->declaration();
if (decl) {
scope->setSourceLocation(decl->sourceLocation(), translationUnit());
scope->setName(decl->name());
}
_scope->addMember(templ);
_scope->addMember(scope);
return false;
}