1 files changed, 65 insertions, 0 deletions
diff --git a/node_modules/estree-walker/dist/estree-walker.umd.js b/node_modules/estree-walker/dist/estree-walker.umd.js
new file mode 100644
index 0000000..f070f17
--- /dev/null
+++ b/node_modules/estree-walker/dist/estree-walker.umd.js
@@ -0,0 +1,65 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(factory((global.estreeWalker = {})));
+}(this, (function (exports) { 'use strict';
+
+	function walk(ast, { enter, leave }) {
+		visit(ast, null, enter, leave);
+	}
+
+	let shouldSkip = false;
+	const context = { skip: () => shouldSkip = true };
+
+	const childKeys = {};
+
+	const toString = Object.prototype.toString;
+
+	function isArray(thing) {
+		return toString.call(thing) === '[object Array]';
+	}
+
+	function visit(node, parent, enter, leave, prop, index) {
+		if (!node) return;
+
+		if (enter) {
+			const _shouldSkip = shouldSkip;
+			shouldSkip = false;
+			enter.call(context, node, parent, prop, index);
+			const skipped = shouldSkip;
+			shouldSkip = _shouldSkip;
+
+			if (skipped) return;
+		}
+
+		const keys = node.type && childKeys[node.type] || (
+			childKeys[node.type] = Object.keys(node).filter(key => typeof node[key] === 'object')
+		);
+
+		for (let i = 0; i < keys.length; i += 1) {
+			const key = keys[i];
+			const value = node[key];
+
+			if (isArray(value)) {
+				for (let j = 0; j < value.length; j += 1) {
+					value[j] && value[j].type && visit(value[j], node, enter, leave, key, j);
+				}
+			}
+
+			else if (value && value.type) {
+				visit(value, node, enter, leave, key, null);
+			}
+		}
+
+		if (leave) {
+			leave(node, parent, prop, index);
+		}
+	}
+
+	exports.walk = walk;
+	exports.childKeys = childKeys;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+//# sourceMappingURL=estree-walker.umd.js.map