Method _parse_expression

modules/gdscript/gdscript_compiler.cpp:262–1439

}

GDScriptCodeGenerator::Address GDScriptCompiler::_parse_expression(CodeGen &codegen, Error &r_error, const GDScriptParser::ExpressionNode *p_expression, bool p_root, bool p_initializer) {
	if (p_expression->is_constant && !(p_expression->get_datatype().is_meta_type && p_expression->get_datatype().kind == GDScriptParser::DataType::CLASS)) {
		return codegen.add_constant(p_expression->reduced_value);
	}

	GDScriptCodeGenerator *gen = codegen.generator;

	switch (p_expression->type) {
		case GDScriptParser::Node::IDENTIFIER: {
			// Look for identifiers in current scope.
			const GDScriptParser::IdentifierNode *in = static_cast<const GDScriptParser::IdentifierNode *>(p_expression);

			StringName identifier = in->name;

			switch (in->source) {
				// LOCALS.
				case GDScriptParser::IdentifierNode::FUNCTION_PARAMETER:
				case GDScriptParser::IdentifierNode::LOCAL_VARIABLE:
				case GDScriptParser::IdentifierNode::LOCAL_CONSTANT:
				case GDScriptParser::IdentifierNode::LOCAL_ITERATOR:
				case GDScriptParser::IdentifierNode::LOCAL_BIND: {
					// Try function parameters.
					if (codegen.parameters.has(identifier)) {
						return codegen.parameters[identifier];
					}

					// Try local variables and constants.
					if (!p_initializer && codegen.locals.has(identifier)) {
						return codegen.locals[identifier];
					}
				} break;

				// MEMBERS.
				case GDScriptParser::IdentifierNode::MEMBER_VARIABLE:
				case GDScriptParser::IdentifierNode::MEMBER_FUNCTION:
				case GDScriptParser::IdentifierNode::MEMBER_SIGNAL:
				case GDScriptParser::IdentifierNode::INHERITED_VARIABLE: {
					// Try class members.
					if (_is_class_member_property(codegen, identifier)) {
						// Get property.
						GDScriptCodeGenerator::Address temp = codegen.add_temporary(_gdtype_from_datatype(p_expression->get_datatype(), codegen.script));
						gen->write_get_member(temp, identifier);
						return temp;
					}

					// Try members.
					if (!codegen.function_node || !codegen.function_node->is_static) {
						// Try member variables.
						if (codegen.script->member_indices.has(identifier)) {
							if (codegen.script->member_indices[identifier].getter != StringName() && codegen.script->member_indices[identifier].getter != codegen.function_name) {
								// Perform getter.
								GDScriptCodeGenerator::Address temp = codegen.add_temporary(codegen.script->member_indices[identifier].data_type);
								Vector<GDScriptCodeGenerator::Address> args; // No argument needed.
								gen->write_call_self(temp, codegen.script->member_indices[identifier].getter, args);
								return temp;
							} else {
								// No getter or inside getter: direct member access.
								int idx = codegen.script->member_indices[identifier].index;