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