Method enter

lib/languages/js/source-code/source-code.js:477–483

(node)

		Traverser.traverse(this.ast, {
			visitorKeys: this.visitorKeys,
			enter(node) {
				if (node.range[0] <= index && index < node.range[1]) {
					result = node;
				} else {
					this.skip();
				}
			},
			leave(node) {
				if (node === result) {
					this.break();