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LanguageServers/Cpp: Autocomplete declarations from included headers

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We now also look at the available declarations from included header
files when autocompleting names.

Additionally, you can now request autocomplete on an empty token, which
brings up all available names, starting from the inner-most scope.
This commit is contained in:
Itamar 2021-02-10 21:48:08 +02:00 • committed by Andreas Kling
parent 64c80f6ea4
commit ef9bfbd383
4 changed files with 22 additions and 13 deletions
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29
Userland/DevTools/HackStudio/LanguageServers/Cpp/ParserAutoComplete.cpp
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@ -109,22 +109,29 @@ Vector<GUI::AutocompleteProvider::Entry> ParserAutoComplete::get_suggestions(con
return {};
}
if (!node->is_identifier()) {
if (is_empty_property(document, *node, position)) {
ASSERT(node->is_member_expression());
return autocomplete_property(document, (MemberExpression&)(*node), "");
if (node->is_identifier()) {
if (is_property(*node)) {
return autocomplete_property(document, (MemberExpression&)(*node->parent()), document.parser.text_of_node(*node));
}
return {};
return autocomplete_name(document, *node, document.parser.text_of_node(*node));
}
if (is_property(*node)) {
return autocomplete_property(document, (MemberExpression&)(*node->parent()), document.parser.text_of_node(*node));
if (is_empty_property(document, *node, position)) {
ASSERT(node->is_member_expression());
return autocomplete_property(document, (MemberExpression&)(*node), "");
}
return autocomplete_identifier(document, *node);
String partial_text = String::empty();
auto containing_token = document.parser.token_at(position);
if (containing_token.has_value()) {
partial_text = document.parser.text_of_token(containing_token.value());
}
return autocomplete_name(document, *node, partial_text.view());
}
Vector<GUI::AutocompleteProvider::Entry> ParserAutoComplete::autocomplete_identifier(const DocumentData& document, const ASTNode& node) const
Vector<GUI::AutocompleteProvider::Entry> ParserAutoComplete::autocomplete_name(const DocumentData& document, const ASTNode& node, const StringView& partial_text) const
{
const Cpp::ASTNode* current = &node;
NonnullRefPtrVector<Cpp::Declaration> available_declarations;
@ -132,6 +139,9 @@ Vector<GUI::AutocompleteProvider::Entry> ParserAutoComplete::autocomplete_identi
available_declarations.append(current->declarations());
current = current->parent();
}
available_declarations.append(get_declarations_in_outer_scope_including_headers(document));
Vector<StringView> available_names;
auto add_name = [&available_names](auto& name) {
if (name.is_null() || name.is_empty())
@ -151,7 +161,6 @@ Vector<GUI::AutocompleteProvider::Entry> ParserAutoComplete::autocomplete_identi
}
}
auto partial_text = document.parser.text_of_node(node);
Vector<GUI::AutocompleteProvider::Entry> suggestions;
for (auto& name : available_names) {
if (name.starts_with(partial_text)) {