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LanguageServers/Cpp: Make go to declaration of a namespace work

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The CppComprehensionEngine can now find the declaration of a reference
to a namespace.
This commit is contained in:
Itamar 2022-02-27 19:02:39 +02:00 • committed by Andreas Kling
parent c3c683c9e1
commit fa384c8171
1 changed files with 18 additions and 3 deletions
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21
Userland/DevTools/HackStudio/LanguageServers/Cpp/CppComprehensionEngine.cpp
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@ -198,6 +198,9 @@ Vector<StringView> CppComprehensionEngine::scope_of_reference_to_symbol(const AS
Vector<StringView> scope_parts; Vector<StringView> scope_parts;
for (auto& scope_part : name->scope()) { for (auto& scope_part : name->scope()) {
// If the target node is part of a scope reference, we want to end the scope chain before it.
if (&scope_part == &node)
break;
scope_parts.append(scope_part.name()); scope_parts.append(scope_part.name());
} }
return scope_parts; return scope_parts;
@ -444,7 +447,8 @@ struct TargetDeclaration {
Variable, Variable,
Type, Type,
Function, Function,
Property Property,
Scope
} type; } type;
String name; String name;
}; };
@ -470,6 +474,13 @@ static Optional<TargetDeclaration> get_target_declaration(const ASTNode& node)
static Optional<TargetDeclaration> get_target_declaration(const ASTNode& node, String name) static Optional<TargetDeclaration> get_target_declaration(const ASTNode& node, String name)
{ {
if (node.parent() && node.parent()->is_name()) {
if (&node != verify_cast<Name>(node.parent())->name()) {
return TargetDeclaration { TargetDeclaration::Type::Scope, name };
}
}
if ((node.parent() && node.parent()->is_function_call()) || (node.parent()->is_name() && node.parent()->parent() && node.parent()->parent()->is_function_call())) { if ((node.parent() && node.parent()->is_function_call()) || (node.parent()->is_name() && node.parent()->parent() && node.parent()->parent()->is_function_call())) {
return TargetDeclaration { TargetDeclaration::Type::Function, name }; return TargetDeclaration { TargetDeclaration::Type::Function, name };
} }
@ -499,6 +510,7 @@ RefPtr<Declaration> CppComprehensionEngine::find_declaration_of(const DocumentDa
bool match_type = target_decl.value().type == TargetDeclaration::Type && symbol.declaration->is_struct_or_class(); bool match_type = target_decl.value().type == TargetDeclaration::Type && symbol.declaration->is_struct_or_class();
bool match_property = target_decl.value().type == TargetDeclaration::Property && symbol.declaration->parent()->is_declaration() && verify_cast<Declaration>(symbol.declaration->parent())->is_struct_or_class(); bool match_property = target_decl.value().type == TargetDeclaration::Property && symbol.declaration->parent()->is_declaration() && verify_cast<Declaration>(symbol.declaration->parent())->is_struct_or_class();
bool match_parameter = target_decl.value().type == TargetDeclaration::Variable && symbol.declaration->is_parameter(); bool match_parameter = target_decl.value().type == TargetDeclaration::Variable && symbol.declaration->is_parameter();
bool match_scope = target_decl.value().type == TargetDeclaration::Scope && (symbol.declaration->is_namespace() || symbol.declaration->is_struct_or_class());
if (match_property) { if (match_property) {
// FIXME: This is not really correct, we also need to check that the type of the struct/class matches (not just the property name) // FIXME: This is not really correct, we also need to check that the type of the struct/class matches (not just the property name)
@ -511,7 +523,7 @@ RefPtr<Declaration> CppComprehensionEngine::find_declaration_of(const DocumentDa
return false; return false;
} }
if (match_function || match_type) { if (match_function || match_type || match_scope) {
if (symbol.name.name == target_decl->name) if (symbol.name.name == target_decl->name)
return true; return true;
} }
@ -771,19 +783,22 @@ String CppComprehensionEngine::SymbolName::to_string() const
bool CppComprehensionEngine::is_symbol_available(const Symbol& symbol, const Vector<StringView>& current_scope, const Vector<StringView>& reference_scope) bool CppComprehensionEngine::is_symbol_available(const Symbol& symbol, const Vector<StringView>& current_scope, const Vector<StringView>& reference_scope)
{ {
if (!reference_scope.is_empty()) { if (!reference_scope.is_empty()) {
return reference_scope == symbol.name.scope; return reference_scope == symbol.name.scope;
} }
// FIXME: Consider "using namespace ..." // FIXME: Take "using namespace ..." into consideration
// Check if current_scope starts with symbol's scope // Check if current_scope starts with symbol's scope
if (symbol.name.scope.size() > current_scope.size()) if (symbol.name.scope.size() > current_scope.size())
return false; return false;
for (size_t i = 0; i < symbol.name.scope.size(); ++i) { for (size_t i = 0; i < symbol.name.scope.size(); ++i) {
if (current_scope[i] != symbol.name.scope[i]) if (current_scope[i] != symbol.name.scope[i])
return false; return false;
} }
return true; return true;
} }