Method evaluate

lib/javascript/JavascriptParser.js:5072–5082

* Returns evaluation result. * @param {string} source source code * @returns {BasicEvaluatedExpression} evaluation result

(source)

	 * @returns {BasicEvaluatedExpression} evaluation result
	 */
	evaluate(source) {
		const { ast } = JavascriptParser._parse(
			`(${source})`,
			{ sourceType: this.sourceType },
			this.options.parse
		);
		if (ast.body.length !== 1 || ast.body[0].type !== "ExpressionStatement") {
			throw new Error("evaluate: Source is not a expression");
		}
		return this.evaluateExpression(ast.body[0].expression);
	}

	/**
	 * Checks whether this javascript parser is pure.