Merge pull request #21279 from vnen/gdscript-fixes

Assorted GDScript fixes

modules/gdscript/gdscript.cpp

@@ -606,9 +606,11 @@ Error GDScript::reload(bool p_keep_state) {
 	}
 #if DEBUG_ENABLED
 	for (const List<GDScriptWarning>::Element *E = parser.get_warnings().front(); E; E = E->next()) {
-		String msg = "Script warning: " + E->get().get_name() + " (" + path + ") line " + itos(E->get().line) + ": ";
+		const GDScriptWarning &warning = E->get();
-		msg += E->get().get_message();
+		if (ScriptDebugger::get_singleton()) {
-		WARN_PRINTS(msg);
+			Vector<ScriptLanguage::StackInfo> si;
+			ScriptDebugger::get_singleton()->send_error("", get_path(), warning.line, warning.get_name(), warning.get_message(), ERR_HANDLER_WARNING, si);
+		}
 	}
 #endif
 

modules/gdscript/gdscript_compiler.cpp

@@ -1994,8 +1994,11 @@ Error GDScriptCompiler::_parse_class_level(GDScript *p_script, GDScript *p_owner
 		p_script->_signals[name] = p_class->_signals[i].arguments;
 	}
 
-	if (!p_class->owner) {
+	if (p_class->owner) {
 		parsed_classes.insert(p_class->name);
+		if (parsing_classes.has(p_class->name)) {
+			parsing_classes.erase(p_class->name);
+		}
 	}
 
 	//parse sub-classes
@@ -2011,7 +2014,6 @@ Error GDScriptCompiler::_parse_class_level(GDScript *p_script, GDScript *p_owner
 			Error err = _parse_class_level(subclass.ptr(), p_script, p_class->subclasses[i], p_keep_state);
 			if (err)
 				return err;
-			parsing_classes.erase(name);
 		}
 
 #ifdef TOOLS_ENABLED

modules/gdscript/gdscript_parser.cpp

@@ -2024,12 +2024,20 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) {
 		// bind
 		case GDScriptTokenizer::TK_PR_VAR: {
 			tokenizer->advance();
+			if (!tokenizer->is_token_literal()) {
+				_set_error("Expected identifier for binding variable name.");
+				return NULL;
+			}
 			pattern->pt_type = GDScriptParser::PatternNode::PT_BIND;
 			pattern->bind = tokenizer->get_token_identifier();
-			// Check if binding is already used
+			// Check if variable name is already used
-			if (current_block->variables.has(pattern->bind)) {
+			BlockNode *bl = current_block;
-				_set_error("Binding name of '" + pattern->bind.operator String() + "' was already used in the pattern.");
+			while (bl) {
-				return NULL;
+				if (bl->variables.has(pattern->bind)) {
+					_set_error("Binding name of '" + pattern->bind.operator String() + "' is already declared in this scope.");
+					return NULL;
+				}
+				bl = bl->parent_block;
 			}
 			// Create local variable for proper identifier detection later
 			LocalVarNode *lv = alloc_node<LocalVarNode>();
@@ -7389,7 +7397,7 @@ void GDScriptParser::_check_function_types(FunctionNode *p_function) {
 			}
 		}
 #ifdef DEBUG_ENABLED
-		if (p_function->arguments_usage[i] == 0) {
+		if (p_function->arguments_usage[i] == 0 && !p_function->arguments[i].operator String().begins_with("_")) {
 			_add_warning(GDScriptWarning::UNUSED_ARGUMENT, p_function->line, p_function->name, p_function->arguments[i].operator String());
 		}
 #endif // DEBUG_ENABLED
@@ -7847,10 +7855,12 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) {
 	// Warnings check
 	for (Map<StringName, LocalVarNode *>::Element *E = p_block->variables.front(); E; E = E->next()) {
 		LocalVarNode *lv = E->get();
-		if (lv->usages == 0) {
+		if (!lv->name.operator String().begins_with("_")) {
-			_add_warning(GDScriptWarning::UNUSED_VARIABLE, lv->line, lv->name);
+			if (lv->usages == 0) {
-		} else if (lv->assignments == 0) {
+				_add_warning(GDScriptWarning::UNUSED_VARIABLE, lv->line, lv->name);
-			_add_warning(GDScriptWarning::UNASSIGNED_VARIABLE, lv->line, lv->name);
+			} else if (lv->assignments == 0) {
+				_add_warning(GDScriptWarning::UNASSIGNED_VARIABLE, lv->line, lv->name);
+			}
 		}
 	}
 #endif // DEBUG_ENABLED

modules/gdscript/gdscript_tokenizer.h

@@ -283,8 +283,14 @@ public:
 	virtual String get_token_error(int p_offset = 0) const;
 	virtual void advance(int p_amount = 1);
 #ifdef DEBUG_ENABLED
-	virtual const Vector<Pair<int, String> > &get_warning_skips() const { return Vector<Pair<int, String> >(); }
+	virtual const Vector<Pair<int, String> > &get_warning_skips() const {
-	virtual const Set<String> &get_warning_global_skips() const { return Set<String>(); }
+		static Vector<Pair<int, String> > v;
+		return v;
+	}
+	virtual const Set<String> &get_warning_global_skips() const {
+		static Set<String> s;
+		return s;
+	}
 	virtual const bool is_ignoring_warnings() const { return true; }
 #endif // DEBUG_ENABLED
 	GDScriptTokenizerBuffer();