1 files changed, 28 insertions, 23 deletions

diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index ecef852b4b..b6db6a940b 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -260,6 +260,7 @@ void GDScriptParser::override_completion_context(const Node *p_for_node, Complet
 	context.current_line = tokenizer->get_cursor_line();
 	context.current_argument = p_argument;
 	context.node = p_node;
+	context.parser = this;
 	completion_context = context;
 }
 
@@ -3122,6 +3123,12 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_subscript(ExpressionNode *
 	subscript->base = p_previous_operand;
 	subscript->index = parse_expression(false);
 
+#ifdef TOOLS_ENABLED
+	if (subscript->index != nullptr && subscript->index->type == Node::LITERAL) {
+		override_completion_context(subscript->index, COMPLETION_SUBSCRIPT, subscript);
+	}
+#endif
+
 	if (subscript->index == nullptr) {
 		push_error(R"(Expected expression after "[".)");
 	}
@@ -4086,7 +4093,7 @@ bool GDScriptParser::validate_annotation_arguments(AnnotationNode *p_annotation)
 	return true;
 }
 
-bool GDScriptParser::tool_annotation(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::tool_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 #ifdef DEBUG_ENABLED
 	if (_is_tool) {
 		push_error(R"("@tool" annotation can only be used once.)", p_annotation);
@@ -4097,7 +4104,7 @@ bool GDScriptParser::tool_annotation(const AnnotationNode *p_annotation, Node *p
 	return true;
 }
 
-bool GDScriptParser::icon_annotation(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::icon_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_target->type != Node::CLASS, false, R"("@icon" annotation can only be applied to classes.)");
 	ERR_FAIL_COND_V(p_annotation->resolved_arguments.is_empty(), false);
 
@@ -4128,7 +4135,7 @@ bool GDScriptParser::icon_annotation(const AnnotationNode *p_annotation, Node *p
 	return true;
 }
 
-bool GDScriptParser::onready_annotation(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::onready_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_target->type != Node::VARIABLE, false, R"("@onready" annotation can only be applied to class variables.)");
 
 	if (current_class && !ClassDB::is_parent_class(current_class->get_datatype().native_type, SNAME("Node"))) {
@@ -4261,7 +4268,7 @@ static StringName _find_narrowest_native_or_global_class(const GDScriptParser::D
 }
 
 template <PropertyHint t_hint, Variant::Type t_type>
-bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::export_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_target->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
 	ERR_FAIL_NULL_V(p_class, false);
 
@@ -4500,7 +4507,7 @@ bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node
 // For `@export_storage` and `@export_custom`, there is no need to check the variable type, argument values,
 // or handle array exports in a special way, so they are implemented as separate methods.
 
-bool GDScriptParser::export_storage_annotation(const AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
+bool GDScriptParser::export_storage_annotation(AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_node->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
 
 	VariableNode *variable = static_cast<VariableNode *>(p_node);
@@ -4522,7 +4529,7 @@ bool GDScriptParser::export_storage_annotation(const AnnotationNode *p_annotatio
 	return true;
 }
 
-bool GDScriptParser::export_custom_annotation(const AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
+bool GDScriptParser::export_custom_annotation(AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_node->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
 	ERR_FAIL_COND_V_MSG(p_annotation->resolved_arguments.size() < 2, false, R"(Annotation "@export_custom" requires 2 arguments.)");
 
@@ -4551,31 +4558,29 @@ bool GDScriptParser::export_custom_annotation(const AnnotationNode *p_annotation
 }
 
 template <PropertyUsageFlags t_usage>
-bool GDScriptParser::export_group_annotations(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
-	AnnotationNode *annotation = const_cast<AnnotationNode *>(p_annotation);
-
-	if (annotation->resolved_arguments.is_empty()) {
+bool GDScriptParser::export_group_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+	if (p_annotation->resolved_arguments.is_empty()) {
 		return false;
 	}
 
-	annotation->export_info.name = annotation->resolved_arguments[0];
+	p_annotation->export_info.name = p_annotation->resolved_arguments[0];
 
 	switch (t_usage) {
 		case PROPERTY_USAGE_CATEGORY: {
-			annotation->export_info.usage = t_usage;
+			p_annotation->export_info.usage = t_usage;
 		} break;
 
 		case PROPERTY_USAGE_GROUP: {
-			annotation->export_info.usage = t_usage;
-			if (annotation->resolved_arguments.size() == 2) {
-				annotation->export_info.hint_string = annotation->resolved_arguments[1];
+			p_annotation->export_info.usage = t_usage;
+			if (p_annotation->resolved_arguments.size() == 2) {
+				p_annotation->export_info.hint_string = p_annotation->resolved_arguments[1];
 			}
 		} break;
 
 		case PROPERTY_USAGE_SUBGROUP: {
-			annotation->export_info.usage = t_usage;
-			if (annotation->resolved_arguments.size() == 2) {
-				annotation->export_info.hint_string = annotation->resolved_arguments[1];
+			p_annotation->export_info.usage = t_usage;
+			if (p_annotation->resolved_arguments.size() == 2) {
+				p_annotation->export_info.hint_string = p_annotation->resolved_arguments[1];
 			}
 		} break;
 	}
@@ -4583,7 +4588,7 @@ bool GDScriptParser::export_group_annotations(const AnnotationNode *p_annotation
 	return true;
 }
 
-bool GDScriptParser::warning_annotations(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::warning_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 #ifndef DEBUG_ENABLED
 	// Only available in debug builds.
 	return true;
@@ -4658,7 +4663,7 @@ bool GDScriptParser::warning_annotations(const AnnotationNode *p_annotation, Nod
 #endif // DEBUG_ENABLED
 }
 
-bool GDScriptParser::rpc_annotation(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::rpc_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_target->type != Node::FUNCTION, false, vformat(R"("%s" annotation can only be applied to functions.)", p_annotation->name));
 
 	FunctionNode *function = static_cast<FunctionNode *>(p_target);
@@ -4719,7 +4724,7 @@ bool GDScriptParser::rpc_annotation(const AnnotationNode *p_annotation, Node *p_
 	return true;
 }
 
-bool GDScriptParser::static_unload_annotation(const AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
+bool GDScriptParser::static_unload_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
 	ERR_FAIL_COND_V_MSG(p_target->type != Node::CLASS, false, vformat(R"("%s" annotation can only be applied to classes.)", p_annotation->name));
 	ClassNode *class_node = static_cast<ClassNode *>(p_target);
 	if (class_node->annotated_static_unload) {
@@ -4790,9 +4795,9 @@ String GDScriptParser::DataType::to_string() const {
 			return class_type->fqcn;
 		case SCRIPT: {
 			if (is_meta_type) {
-				return script_type != nullptr ? script_type->get_class_name().operator String() : "";
+				return script_type.is_valid() ? script_type->get_class_name().operator String() : "";
 			}
-			String name = script_type != nullptr ? script_type->get_name() : "";
+			String name = script_type.is_valid() ? script_type->get_name() : "";
 			if (!name.is_empty()) {
 				return name;
 			}