162 lines
3.9 KiB
JavaScript
162 lines
3.9 KiB
JavaScript
"use strict";
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exports.__esModule = true;
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exports.visitors = exports.Hub = exports.Scope = exports.NodePath = undefined;
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var _getIterator2 = require("babel-runtime/core-js/get-iterator");
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var _getIterator3 = _interopRequireDefault(_getIterator2);
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var _path = require("./path");
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Object.defineProperty(exports, "NodePath", {
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enumerable: true,
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get: function get() {
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return _interopRequireDefault(_path).default;
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}
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});
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var _scope = require("./scope");
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Object.defineProperty(exports, "Scope", {
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enumerable: true,
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get: function get() {
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return _interopRequireDefault(_scope).default;
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}
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});
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var _hub = require("./hub");
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Object.defineProperty(exports, "Hub", {
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enumerable: true,
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get: function get() {
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return _interopRequireDefault(_hub).default;
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}
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});
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exports.default = traverse;
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var _context = require("./context");
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var _context2 = _interopRequireDefault(_context);
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var _visitors = require("./visitors");
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var visitors = _interopRequireWildcard(_visitors);
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var _babelMessages = require("babel-messages");
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var messages = _interopRequireWildcard(_babelMessages);
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var _includes = require("lodash/includes");
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var _includes2 = _interopRequireDefault(_includes);
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var _babelTypes = require("babel-types");
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var t = _interopRequireWildcard(_babelTypes);
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var _cache = require("./cache");
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var cache = _interopRequireWildcard(_cache);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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exports.visitors = visitors;
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function traverse(parent, opts, scope, state, parentPath) {
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if (!parent) return;
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if (!opts) opts = {};
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if (!opts.noScope && !scope) {
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if (parent.type !== "Program" && parent.type !== "File") {
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throw new Error(messages.get("traverseNeedsParent", parent.type));
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}
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}
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visitors.explode(opts);
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traverse.node(parent, opts, scope, state, parentPath);
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}
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traverse.visitors = visitors;
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traverse.verify = visitors.verify;
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traverse.explode = visitors.explode;
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traverse.NodePath = require("./path");
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traverse.Scope = require("./scope");
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traverse.Hub = require("./hub");
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traverse.cheap = function (node, enter) {
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return t.traverseFast(node, enter);
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};
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traverse.node = function (node, opts, scope, state, parentPath, skipKeys) {
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var keys = t.VISITOR_KEYS[node.type];
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if (!keys) return;
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var context = new _context2.default(scope, opts, state, parentPath);
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for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var key = _ref;
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if (skipKeys && skipKeys[key]) continue;
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if (context.visit(node, key)) return;
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}
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};
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traverse.clearNode = function (node, opts) {
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t.removeProperties(node, opts);
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cache.path.delete(node);
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};
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traverse.removeProperties = function (tree, opts) {
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t.traverseFast(tree, traverse.clearNode, opts);
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return tree;
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};
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function hasBlacklistedType(path, state) {
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if (path.node.type === state.type) {
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state.has = true;
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path.stop();
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}
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}
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traverse.hasType = function (tree, scope, type, blacklistTypes) {
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if ((0, _includes2.default)(blacklistTypes, tree.type)) return false;
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if (tree.type === type) return true;
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var state = {
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has: false,
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type: type
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};
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traverse(tree, {
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blacklist: blacklistTypes,
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enter: hasBlacklistedType
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}, scope, state);
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return state.has;
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};
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traverse.clearCache = function () {
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cache.clear();
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};
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traverse.copyCache = function (source, destination) {
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if (cache.path.has(source)) {
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cache.path.set(destination, cache.path.get(source));
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}
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}; |