Method walkFunctionExpression

lib/javascript/JavascriptParser.js:3694–3717

* Walk function expression. * @param {FunctionExpression} expression arrow function expression

(expression)

	 * @param {FunctionExpression} expression arrow function expression
	 */
	walkFunctionExpression(expression) {
		const wasTopLevel = this.scope.topLevelScope;
		this.scope.topLevelScope = false;
		// Only copy params when the function name must be added (recursive calls);
		// inFunctionScope reads params without mutating, like arrow functions.
		const scopeParams = expression.id
			? [...expression.params, expression.id]
			: expression.params;

		this.inFunctionScope(true, scopeParams, () => {
			for (const param of expression.params) {
				this.walkPattern(param);
			}

			this.detectMode(expression.body.body);

			const prev = this.prevStatement;

			this.preWalkStatement(expression.body);
			this.prevStatement = prev;
			this.walkStatement(expression.body);
		});
		this.scope.topLevelScope = wasTopLevel;
	}

	/**
	 * Walk arrow function expression.