Method parse_precedence

modules/gdscript/gdscript_parser.cpp:2646–2708

}

GDScriptParser::ExpressionNode *GDScriptParser::parse_precedence(Precedence p_precedence, bool p_can_assign, bool p_stop_on_assign) {
	// Switch multiline mode on for grouping tokens.
	// Do this early to avoid the tokenizer generating whitespace tokens.
	switch (current.type) {
		case GDScriptTokenizer::Token::PARENTHESIS_OPEN:
		case GDScriptTokenizer::Token::BRACE_OPEN:
		case GDScriptTokenizer::Token::BRACKET_OPEN:
			push_multiline(true);
			break;
		default:
			break; // Nothing to do.
	}

	// Completion can appear whenever an expression is expected.
	make_completion_context(COMPLETION_IDENTIFIER, nullptr, -1, false);

	GDScriptTokenizer::Token token = current;
	GDScriptTokenizer::Token::Type token_type = token.type;
	if (token.is_identifier()) {
		// Allow keywords that can be treated as identifiers.
		token_type = GDScriptTokenizer::Token::IDENTIFIER;
	}
	ParseFunction prefix_rule = get_rule(token_type)->prefix;

	if (prefix_rule == nullptr) {
		// Expected expression. Let the caller give the proper error message.
		return nullptr;
	}

	advance(); // Only consume the token if there's a valid rule.

	// After a token was consumed, update the completion context regardless of a previously set context.

	ExpressionNode *previous_operand = (this->*prefix_rule)(nullptr, p_can_assign);

#ifdef TOOLS_ENABLED
	/// @todo HACK: We can't create a context in parse_identifier since it is used in places were we don't want completion.
	if (previous_operand != nullptr && previous_operand->type == GDScriptParser::Node::IDENTIFIER && prefix_rule == static_cast<ParseFunction>(&GDScriptParser::parse_identifier)) {
		make_completion_context(COMPLETION_IDENTIFIER, previous_operand);
	}
#endif

	while (p_precedence <= get_rule(current.type)->precedence) {
		if (previous_operand == nullptr || (p_stop_on_assign && current.type == GDScriptTokenizer::Token::EQUAL) || lambda_ended) {
			return previous_operand;
		}
		// Also switch multiline mode on here for infix operators.
		switch (current.type) {
			// case GDScriptTokenizer::Token::BRACE_OPEN: // Not an infix operator.
			case GDScriptTokenizer::Token::PARENTHESIS_OPEN:
			case GDScriptTokenizer::Token::BRACKET_OPEN:
				push_multiline(true);
				break;
			default:
				break; // Nothing to do.
		}
		token = advance();
		ParseFunction infix_rule = get_rule(token.type)->infix;