Method walkSequenceExpression

lib/javascript/JavascriptParser.js:3747–3780

* Walk sequence expression. * @param {SequenceExpression} expression the sequence

(expression)

	 * @param {SequenceExpression} expression the sequence
	 */
	walkSequenceExpression(expression) {
		if (!expression.expressions) return;
		// We treat sequence expressions like statements when they are one statement level
		// This has some benefits for optimizations that only work on statement level
		const currentStatement =
			/** @type {StatementPath} */
			(this.statementPath)[
				/** @type {StatementPath} */
				(this.statementPath).length - 1
			];
		if (
			currentStatement === expression ||
			(currentStatement.type === "ExpressionStatement" &&
				currentStatement.expression === expression)
		) {
			const old =
				/** @type {StatementPathItem} */
				(/** @type {StatementPath} */ (this.statementPath).pop());
			const prev = this.prevStatement;
			for (const expr of expression.expressions) {
				/** @type {StatementPath} */
				(this.statementPath).push(expr);
				this.walkExpression(expr);
				this.prevStatement =
					/** @type {StatementPath} */
					(this.statementPath).pop();
			}
			this.prevStatement = prev;
			/** @type {StatementPath} */
			(this.statementPath).push(old);
		} else {
			this.walkExpressions(expression.expressions);
		}
	}

	/**
	 * Walk update expression.