1094 lines
32 KiB
JavaScript
1094 lines
32 KiB
JavaScript
"use strict";
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exports.__esModule = true;
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var _keys = require("babel-runtime/core-js/object/keys");
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var _keys2 = _interopRequireDefault(_keys);
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var _create = require("babel-runtime/core-js/object/create");
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var _create2 = _interopRequireDefault(_create);
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var _map = require("babel-runtime/core-js/map");
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var _map2 = _interopRequireDefault(_map);
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var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
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var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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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 _includes = require("lodash/includes");
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var _includes2 = _interopRequireDefault(_includes);
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var _repeat = require("lodash/repeat");
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var _repeat2 = _interopRequireDefault(_repeat);
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var _renamer = require("./lib/renamer");
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var _renamer2 = _interopRequireDefault(_renamer);
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var _index = require("../index");
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var _index2 = _interopRequireDefault(_index);
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var _defaults = require("lodash/defaults");
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var _defaults2 = _interopRequireDefault(_defaults);
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var _babelMessages = require("babel-messages");
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var messages = _interopRequireWildcard(_babelMessages);
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var _binding2 = require("./binding");
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var _binding3 = _interopRequireDefault(_binding2);
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var _globals = require("globals");
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var _globals2 = _interopRequireDefault(_globals);
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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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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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var _crawlCallsCount = 0;
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function getCache(path, parentScope, self) {
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var scopes = _cache.scope.get(path.node) || [];
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for (var _iterator = scopes, _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 scope = _ref;
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if (scope.parent === parentScope && scope.path === path) return scope;
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}
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scopes.push(self);
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if (!_cache.scope.has(path.node)) {
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_cache.scope.set(path.node, scopes);
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}
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}
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function gatherNodeParts(node, parts) {
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if (t.isModuleDeclaration(node)) {
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if (node.source) {
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gatherNodeParts(node.source, parts);
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} else if (node.specifiers && node.specifiers.length) {
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for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
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var _ref2;
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if (_isArray2) {
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if (_i2 >= _iterator2.length) break;
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_ref2 = _iterator2[_i2++];
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} else {
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_i2 = _iterator2.next();
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if (_i2.done) break;
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_ref2 = _i2.value;
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}
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var specifier = _ref2;
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gatherNodeParts(specifier, parts);
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}
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} else if (node.declaration) {
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gatherNodeParts(node.declaration, parts);
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}
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} else if (t.isModuleSpecifier(node)) {
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gatherNodeParts(node.local, parts);
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} else if (t.isMemberExpression(node)) {
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gatherNodeParts(node.object, parts);
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gatherNodeParts(node.property, parts);
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} else if (t.isIdentifier(node)) {
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parts.push(node.name);
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} else if (t.isLiteral(node)) {
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parts.push(node.value);
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} else if (t.isCallExpression(node)) {
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gatherNodeParts(node.callee, parts);
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} else if (t.isObjectExpression(node) || t.isObjectPattern(node)) {
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for (var _iterator3 = node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
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var _ref3;
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if (_isArray3) {
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if (_i3 >= _iterator3.length) break;
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_ref3 = _iterator3[_i3++];
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} else {
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_i3 = _iterator3.next();
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if (_i3.done) break;
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_ref3 = _i3.value;
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}
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var prop = _ref3;
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gatherNodeParts(prop.key || prop.argument, parts);
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}
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}
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}
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var collectorVisitor = {
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For: function For(path) {
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for (var _iterator4 = t.FOR_INIT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
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var _ref4;
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if (_isArray4) {
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if (_i4 >= _iterator4.length) break;
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_ref4 = _iterator4[_i4++];
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} else {
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_i4 = _iterator4.next();
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if (_i4.done) break;
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_ref4 = _i4.value;
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}
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var key = _ref4;
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var declar = path.get(key);
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if (declar.isVar()) path.scope.getFunctionParent().registerBinding("var", declar);
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}
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},
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Declaration: function Declaration(path) {
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if (path.isBlockScoped()) return;
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if (path.isExportDeclaration() && path.get("declaration").isDeclaration()) return;
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path.scope.getFunctionParent().registerDeclaration(path);
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},
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ReferencedIdentifier: function ReferencedIdentifier(path, state) {
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state.references.push(path);
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},
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ForXStatement: function ForXStatement(path, state) {
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var left = path.get("left");
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if (left.isPattern() || left.isIdentifier()) {
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state.constantViolations.push(left);
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}
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},
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ExportDeclaration: {
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exit: function exit(path) {
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var node = path.node,
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scope = path.scope;
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var declar = node.declaration;
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if (t.isClassDeclaration(declar) || t.isFunctionDeclaration(declar)) {
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var _id = declar.id;
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if (!_id) return;
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var binding = scope.getBinding(_id.name);
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if (binding) binding.reference(path);
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} else if (t.isVariableDeclaration(declar)) {
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for (var _iterator5 = declar.declarations, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
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var _ref5;
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if (_isArray5) {
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if (_i5 >= _iterator5.length) break;
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_ref5 = _iterator5[_i5++];
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} else {
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_i5 = _iterator5.next();
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if (_i5.done) break;
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_ref5 = _i5.value;
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}
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var decl = _ref5;
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var ids = t.getBindingIdentifiers(decl);
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for (var name in ids) {
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var _binding = scope.getBinding(name);
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if (_binding) _binding.reference(path);
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}
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}
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}
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}
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},
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LabeledStatement: function LabeledStatement(path) {
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path.scope.getProgramParent().addGlobal(path.node);
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path.scope.getBlockParent().registerDeclaration(path);
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},
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AssignmentExpression: function AssignmentExpression(path, state) {
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state.assignments.push(path);
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},
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UpdateExpression: function UpdateExpression(path, state) {
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state.constantViolations.push(path.get("argument"));
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},
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UnaryExpression: function UnaryExpression(path, state) {
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if (path.node.operator === "delete") {
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state.constantViolations.push(path.get("argument"));
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}
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},
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BlockScoped: function BlockScoped(path) {
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var scope = path.scope;
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if (scope.path === path) scope = scope.parent;
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scope.getBlockParent().registerDeclaration(path);
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},
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ClassDeclaration: function ClassDeclaration(path) {
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var id = path.node.id;
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if (!id) return;
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var name = id.name;
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path.scope.bindings[name] = path.scope.getBinding(name);
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},
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Block: function Block(path) {
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var paths = path.get("body");
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for (var _iterator6 = paths, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
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var _ref6;
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if (_isArray6) {
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if (_i6 >= _iterator6.length) break;
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_ref6 = _iterator6[_i6++];
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} else {
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_i6 = _iterator6.next();
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if (_i6.done) break;
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_ref6 = _i6.value;
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}
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var bodyPath = _ref6;
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if (bodyPath.isFunctionDeclaration()) {
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path.scope.getBlockParent().registerDeclaration(bodyPath);
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}
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}
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}
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};
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var uid = 0;
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var Scope = function () {
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function Scope(path, parentScope) {
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(0, _classCallCheck3.default)(this, Scope);
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if (parentScope && parentScope.block === path.node) {
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return parentScope;
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}
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var cached = getCache(path, parentScope, this);
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if (cached) return cached;
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this.uid = uid++;
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this.parent = parentScope;
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this.hub = path.hub;
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this.parentBlock = path.parent;
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this.block = path.node;
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this.path = path;
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this.labels = new _map2.default();
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}
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Scope.prototype.traverse = function traverse(node, opts, state) {
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(0, _index2.default)(node, opts, this, state, this.path);
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};
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Scope.prototype.generateDeclaredUidIdentifier = function generateDeclaredUidIdentifier() {
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var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
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var id = this.generateUidIdentifier(name);
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this.push({ id: id });
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return id;
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};
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Scope.prototype.generateUidIdentifier = function generateUidIdentifier() {
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var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
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return t.identifier(this.generateUid(name));
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};
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Scope.prototype.generateUid = function generateUid() {
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var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
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name = t.toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");
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var uid = void 0;
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var i = 0;
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do {
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uid = this._generateUid(name, i);
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i++;
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} while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));
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var program = this.getProgramParent();
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program.references[uid] = true;
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program.uids[uid] = true;
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return uid;
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};
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Scope.prototype._generateUid = function _generateUid(name, i) {
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var id = name;
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if (i > 1) id += i;
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return "_" + id;
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};
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Scope.prototype.generateUidIdentifierBasedOnNode = function generateUidIdentifierBasedOnNode(parent, defaultName) {
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var node = parent;
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if (t.isAssignmentExpression(parent)) {
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node = parent.left;
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} else if (t.isVariableDeclarator(parent)) {
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node = parent.id;
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} else if (t.isObjectProperty(node) || t.isObjectMethod(node)) {
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node = node.key;
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}
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var parts = [];
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gatherNodeParts(node, parts);
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var id = parts.join("$");
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id = id.replace(/^_/, "") || defaultName || "ref";
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return this.generateUidIdentifier(id.slice(0, 20));
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};
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Scope.prototype.isStatic = function isStatic(node) {
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if (t.isThisExpression(node) || t.isSuper(node)) {
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return true;
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}
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if (t.isIdentifier(node)) {
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var binding = this.getBinding(node.name);
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if (binding) {
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return binding.constant;
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} else {
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return this.hasBinding(node.name);
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}
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}
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return false;
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};
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Scope.prototype.maybeGenerateMemoised = function maybeGenerateMemoised(node, dontPush) {
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if (this.isStatic(node)) {
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return null;
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} else {
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var _id2 = this.generateUidIdentifierBasedOnNode(node);
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if (!dontPush) this.push({ id: _id2 });
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return _id2;
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}
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};
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Scope.prototype.checkBlockScopedCollisions = function checkBlockScopedCollisions(local, kind, name, id) {
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if (kind === "param") return;
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if (kind === "hoisted" && local.kind === "let") return;
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var duplicate = kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" || local.kind === "param" && (kind === "let" || kind === "const");
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if (duplicate) {
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throw this.hub.file.buildCodeFrameError(id, messages.get("scopeDuplicateDeclaration", name), TypeError);
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}
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};
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Scope.prototype.rename = function rename(oldName, newName, block) {
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var binding = this.getBinding(oldName);
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if (binding) {
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newName = newName || this.generateUidIdentifier(oldName).name;
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return new _renamer2.default(binding, oldName, newName).rename(block);
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}
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};
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Scope.prototype._renameFromMap = function _renameFromMap(map, oldName, newName, value) {
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if (map[oldName]) {
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map[newName] = value;
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map[oldName] = null;
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}
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};
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Scope.prototype.dump = function dump() {
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var sep = (0, _repeat2.default)("-", 60);
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console.log(sep);
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var scope = this;
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do {
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console.log("#", scope.block.type);
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for (var name in scope.bindings) {
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var binding = scope.bindings[name];
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console.log(" -", name, {
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constant: binding.constant,
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references: binding.references,
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violations: binding.constantViolations.length,
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kind: binding.kind
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});
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}
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} while (scope = scope.parent);
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console.log(sep);
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};
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Scope.prototype.toArray = function toArray(node, i) {
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var file = this.hub.file;
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if (t.isIdentifier(node)) {
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var binding = this.getBinding(node.name);
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if (binding && binding.constant && binding.path.isGenericType("Array")) return node;
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}
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if (t.isArrayExpression(node)) {
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return node;
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}
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if (t.isIdentifier(node, { name: "arguments" })) {
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return t.callExpression(t.memberExpression(t.memberExpression(t.memberExpression(t.identifier("Array"), t.identifier("prototype")), t.identifier("slice")), t.identifier("call")), [node]);
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}
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var helperName = "toArray";
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var args = [node];
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if (i === true) {
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helperName = "toConsumableArray";
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} else if (i) {
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args.push(t.numericLiteral(i));
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helperName = "slicedToArray";
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}
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return t.callExpression(file.addHelper(helperName), args);
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};
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Scope.prototype.hasLabel = function hasLabel(name) {
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return !!this.getLabel(name);
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};
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Scope.prototype.getLabel = function getLabel(name) {
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return this.labels.get(name);
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};
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Scope.prototype.registerLabel = function registerLabel(path) {
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this.labels.set(path.node.label.name, path);
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};
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Scope.prototype.registerDeclaration = function registerDeclaration(path) {
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if (path.isLabeledStatement()) {
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this.registerLabel(path);
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} else if (path.isFunctionDeclaration()) {
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this.registerBinding("hoisted", path.get("id"), path);
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} else if (path.isVariableDeclaration()) {
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var declarations = path.get("declarations");
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for (var _iterator7 = declarations, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
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var _ref7;
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if (_isArray7) {
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if (_i7 >= _iterator7.length) break;
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_ref7 = _iterator7[_i7++];
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} else {
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_i7 = _iterator7.next();
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if (_i7.done) break;
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_ref7 = _i7.value;
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}
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var declar = _ref7;
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this.registerBinding(path.node.kind, declar);
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}
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} else if (path.isClassDeclaration()) {
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this.registerBinding("let", path);
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} else if (path.isImportDeclaration()) {
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var specifiers = path.get("specifiers");
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for (var _iterator8 = specifiers, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
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var _ref8;
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|
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if (_isArray8) {
|
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if (_i8 >= _iterator8.length) break;
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_ref8 = _iterator8[_i8++];
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} else {
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_i8 = _iterator8.next();
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if (_i8.done) break;
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_ref8 = _i8.value;
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}
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var specifier = _ref8;
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|
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this.registerBinding("module", specifier);
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}
|
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} else if (path.isExportDeclaration()) {
|
|
var _declar = path.get("declaration");
|
|
if (_declar.isClassDeclaration() || _declar.isFunctionDeclaration() || _declar.isVariableDeclaration()) {
|
|
this.registerDeclaration(_declar);
|
|
}
|
|
} else {
|
|
this.registerBinding("unknown", path);
|
|
}
|
|
};
|
|
|
|
Scope.prototype.buildUndefinedNode = function buildUndefinedNode() {
|
|
if (this.hasBinding("undefined")) {
|
|
return t.unaryExpression("void", t.numericLiteral(0), true);
|
|
} else {
|
|
return t.identifier("undefined");
|
|
}
|
|
};
|
|
|
|
Scope.prototype.registerConstantViolation = function registerConstantViolation(path) {
|
|
var ids = path.getBindingIdentifiers();
|
|
for (var name in ids) {
|
|
var binding = this.getBinding(name);
|
|
if (binding) binding.reassign(path);
|
|
}
|
|
};
|
|
|
|
Scope.prototype.registerBinding = function registerBinding(kind, path) {
|
|
var bindingPath = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : path;
|
|
|
|
if (!kind) throw new ReferenceError("no `kind`");
|
|
|
|
if (path.isVariableDeclaration()) {
|
|
var declarators = path.get("declarations");
|
|
for (var _iterator9 = declarators, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
|
|
var _ref9;
|
|
|
|
if (_isArray9) {
|
|
if (_i9 >= _iterator9.length) break;
|
|
_ref9 = _iterator9[_i9++];
|
|
} else {
|
|
_i9 = _iterator9.next();
|
|
if (_i9.done) break;
|
|
_ref9 = _i9.value;
|
|
}
|
|
|
|
var declar = _ref9;
|
|
|
|
this.registerBinding(kind, declar);
|
|
}
|
|
return;
|
|
}
|
|
|
|
var parent = this.getProgramParent();
|
|
var ids = path.getBindingIdentifiers(true);
|
|
|
|
for (var name in ids) {
|
|
for (var _iterator10 = ids[name], _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
|
|
var _ref10;
|
|
|
|
if (_isArray10) {
|
|
if (_i10 >= _iterator10.length) break;
|
|
_ref10 = _iterator10[_i10++];
|
|
} else {
|
|
_i10 = _iterator10.next();
|
|
if (_i10.done) break;
|
|
_ref10 = _i10.value;
|
|
}
|
|
|
|
var _id3 = _ref10;
|
|
|
|
var local = this.getOwnBinding(name);
|
|
if (local) {
|
|
if (local.identifier === _id3) continue;
|
|
|
|
this.checkBlockScopedCollisions(local, kind, name, _id3);
|
|
}
|
|
|
|
if (local && local.path.isFlow()) local = null;
|
|
|
|
parent.references[name] = true;
|
|
|
|
this.bindings[name] = new _binding3.default({
|
|
identifier: _id3,
|
|
existing: local,
|
|
scope: this,
|
|
path: bindingPath,
|
|
kind: kind
|
|
});
|
|
}
|
|
}
|
|
};
|
|
|
|
Scope.prototype.addGlobal = function addGlobal(node) {
|
|
this.globals[node.name] = node;
|
|
};
|
|
|
|
Scope.prototype.hasUid = function hasUid(name) {
|
|
var scope = this;
|
|
|
|
do {
|
|
if (scope.uids[name]) return true;
|
|
} while (scope = scope.parent);
|
|
|
|
return false;
|
|
};
|
|
|
|
Scope.prototype.hasGlobal = function hasGlobal(name) {
|
|
var scope = this;
|
|
|
|
do {
|
|
if (scope.globals[name]) return true;
|
|
} while (scope = scope.parent);
|
|
|
|
return false;
|
|
};
|
|
|
|
Scope.prototype.hasReference = function hasReference(name) {
|
|
var scope = this;
|
|
|
|
do {
|
|
if (scope.references[name]) return true;
|
|
} while (scope = scope.parent);
|
|
|
|
return false;
|
|
};
|
|
|
|
Scope.prototype.isPure = function isPure(node, constantsOnly) {
|
|
if (t.isIdentifier(node)) {
|
|
var binding = this.getBinding(node.name);
|
|
if (!binding) return false;
|
|
if (constantsOnly) return binding.constant;
|
|
return true;
|
|
} else if (t.isClass(node)) {
|
|
if (node.superClass && !this.isPure(node.superClass, constantsOnly)) return false;
|
|
return this.isPure(node.body, constantsOnly);
|
|
} else if (t.isClassBody(node)) {
|
|
for (var _iterator11 = node.body, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : (0, _getIterator3.default)(_iterator11);;) {
|
|
var _ref11;
|
|
|
|
if (_isArray11) {
|
|
if (_i11 >= _iterator11.length) break;
|
|
_ref11 = _iterator11[_i11++];
|
|
} else {
|
|
_i11 = _iterator11.next();
|
|
if (_i11.done) break;
|
|
_ref11 = _i11.value;
|
|
}
|
|
|
|
var method = _ref11;
|
|
|
|
if (!this.isPure(method, constantsOnly)) return false;
|
|
}
|
|
return true;
|
|
} else if (t.isBinary(node)) {
|
|
return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
|
|
} else if (t.isArrayExpression(node)) {
|
|
for (var _iterator12 = node.elements, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : (0, _getIterator3.default)(_iterator12);;) {
|
|
var _ref12;
|
|
|
|
if (_isArray12) {
|
|
if (_i12 >= _iterator12.length) break;
|
|
_ref12 = _iterator12[_i12++];
|
|
} else {
|
|
_i12 = _iterator12.next();
|
|
if (_i12.done) break;
|
|
_ref12 = _i12.value;
|
|
}
|
|
|
|
var elem = _ref12;
|
|
|
|
if (!this.isPure(elem, constantsOnly)) return false;
|
|
}
|
|
return true;
|
|
} else if (t.isObjectExpression(node)) {
|
|
for (var _iterator13 = node.properties, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : (0, _getIterator3.default)(_iterator13);;) {
|
|
var _ref13;
|
|
|
|
if (_isArray13) {
|
|
if (_i13 >= _iterator13.length) break;
|
|
_ref13 = _iterator13[_i13++];
|
|
} else {
|
|
_i13 = _iterator13.next();
|
|
if (_i13.done) break;
|
|
_ref13 = _i13.value;
|
|
}
|
|
|
|
var prop = _ref13;
|
|
|
|
if (!this.isPure(prop, constantsOnly)) return false;
|
|
}
|
|
return true;
|
|
} else if (t.isClassMethod(node)) {
|
|
if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
|
|
if (node.kind === "get" || node.kind === "set") return false;
|
|
return true;
|
|
} else if (t.isClassProperty(node) || t.isObjectProperty(node)) {
|
|
if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
|
|
return this.isPure(node.value, constantsOnly);
|
|
} else if (t.isUnaryExpression(node)) {
|
|
return this.isPure(node.argument, constantsOnly);
|
|
} else {
|
|
return t.isPureish(node);
|
|
}
|
|
};
|
|
|
|
Scope.prototype.setData = function setData(key, val) {
|
|
return this.data[key] = val;
|
|
};
|
|
|
|
Scope.prototype.getData = function getData(key) {
|
|
var scope = this;
|
|
do {
|
|
var data = scope.data[key];
|
|
if (data != null) return data;
|
|
} while (scope = scope.parent);
|
|
};
|
|
|
|
Scope.prototype.removeData = function removeData(key) {
|
|
var scope = this;
|
|
do {
|
|
var data = scope.data[key];
|
|
if (data != null) scope.data[key] = null;
|
|
} while (scope = scope.parent);
|
|
};
|
|
|
|
Scope.prototype.init = function init() {
|
|
if (!this.references) this.crawl();
|
|
};
|
|
|
|
Scope.prototype.crawl = function crawl() {
|
|
_crawlCallsCount++;
|
|
this._crawl();
|
|
_crawlCallsCount--;
|
|
};
|
|
|
|
Scope.prototype._crawl = function _crawl() {
|
|
var path = this.path;
|
|
|
|
this.references = (0, _create2.default)(null);
|
|
this.bindings = (0, _create2.default)(null);
|
|
this.globals = (0, _create2.default)(null);
|
|
this.uids = (0, _create2.default)(null);
|
|
this.data = (0, _create2.default)(null);
|
|
|
|
if (path.isLoop()) {
|
|
for (var _iterator14 = t.FOR_INIT_KEYS, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : (0, _getIterator3.default)(_iterator14);;) {
|
|
var _ref14;
|
|
|
|
if (_isArray14) {
|
|
if (_i14 >= _iterator14.length) break;
|
|
_ref14 = _iterator14[_i14++];
|
|
} else {
|
|
_i14 = _iterator14.next();
|
|
if (_i14.done) break;
|
|
_ref14 = _i14.value;
|
|
}
|
|
|
|
var key = _ref14;
|
|
|
|
var node = path.get(key);
|
|
if (node.isBlockScoped()) this.registerBinding(node.node.kind, node);
|
|
}
|
|
}
|
|
|
|
if (path.isFunctionExpression() && path.has("id")) {
|
|
if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
|
|
this.registerBinding("local", path.get("id"), path);
|
|
}
|
|
}
|
|
|
|
if (path.isClassExpression() && path.has("id")) {
|
|
if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
|
|
this.registerBinding("local", path);
|
|
}
|
|
}
|
|
|
|
if (path.isFunction()) {
|
|
var params = path.get("params");
|
|
for (var _iterator15 = params, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : (0, _getIterator3.default)(_iterator15);;) {
|
|
var _ref15;
|
|
|
|
if (_isArray15) {
|
|
if (_i15 >= _iterator15.length) break;
|
|
_ref15 = _iterator15[_i15++];
|
|
} else {
|
|
_i15 = _iterator15.next();
|
|
if (_i15.done) break;
|
|
_ref15 = _i15.value;
|
|
}
|
|
|
|
var param = _ref15;
|
|
|
|
this.registerBinding("param", param);
|
|
}
|
|
}
|
|
|
|
if (path.isCatchClause()) {
|
|
this.registerBinding("let", path);
|
|
}
|
|
|
|
var parent = this.getProgramParent();
|
|
if (parent.crawling) return;
|
|
|
|
var state = {
|
|
references: [],
|
|
constantViolations: [],
|
|
assignments: []
|
|
};
|
|
|
|
this.crawling = true;
|
|
path.traverse(collectorVisitor, state);
|
|
this.crawling = false;
|
|
|
|
for (var _iterator16 = state.assignments, _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : (0, _getIterator3.default)(_iterator16);;) {
|
|
var _ref16;
|
|
|
|
if (_isArray16) {
|
|
if (_i16 >= _iterator16.length) break;
|
|
_ref16 = _iterator16[_i16++];
|
|
} else {
|
|
_i16 = _iterator16.next();
|
|
if (_i16.done) break;
|
|
_ref16 = _i16.value;
|
|
}
|
|
|
|
var _path = _ref16;
|
|
|
|
var ids = _path.getBindingIdentifiers();
|
|
var programParent = void 0;
|
|
for (var name in ids) {
|
|
if (_path.scope.getBinding(name)) continue;
|
|
|
|
programParent = programParent || _path.scope.getProgramParent();
|
|
programParent.addGlobal(ids[name]);
|
|
}
|
|
|
|
_path.scope.registerConstantViolation(_path);
|
|
}
|
|
|
|
for (var _iterator17 = state.references, _isArray17 = Array.isArray(_iterator17), _i17 = 0, _iterator17 = _isArray17 ? _iterator17 : (0, _getIterator3.default)(_iterator17);;) {
|
|
var _ref17;
|
|
|
|
if (_isArray17) {
|
|
if (_i17 >= _iterator17.length) break;
|
|
_ref17 = _iterator17[_i17++];
|
|
} else {
|
|
_i17 = _iterator17.next();
|
|
if (_i17.done) break;
|
|
_ref17 = _i17.value;
|
|
}
|
|
|
|
var ref = _ref17;
|
|
|
|
var binding = ref.scope.getBinding(ref.node.name);
|
|
if (binding) {
|
|
binding.reference(ref);
|
|
} else {
|
|
ref.scope.getProgramParent().addGlobal(ref.node);
|
|
}
|
|
}
|
|
|
|
for (var _iterator18 = state.constantViolations, _isArray18 = Array.isArray(_iterator18), _i18 = 0, _iterator18 = _isArray18 ? _iterator18 : (0, _getIterator3.default)(_iterator18);;) {
|
|
var _ref18;
|
|
|
|
if (_isArray18) {
|
|
if (_i18 >= _iterator18.length) break;
|
|
_ref18 = _iterator18[_i18++];
|
|
} else {
|
|
_i18 = _iterator18.next();
|
|
if (_i18.done) break;
|
|
_ref18 = _i18.value;
|
|
}
|
|
|
|
var _path2 = _ref18;
|
|
|
|
_path2.scope.registerConstantViolation(_path2);
|
|
}
|
|
};
|
|
|
|
Scope.prototype.push = function push(opts) {
|
|
var path = this.path;
|
|
|
|
if (!path.isBlockStatement() && !path.isProgram()) {
|
|
path = this.getBlockParent().path;
|
|
}
|
|
|
|
if (path.isSwitchStatement()) {
|
|
path = this.getFunctionParent().path;
|
|
}
|
|
|
|
if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
|
|
t.ensureBlock(path.node);
|
|
path = path.get("body");
|
|
}
|
|
|
|
var unique = opts.unique;
|
|
var kind = opts.kind || "var";
|
|
var blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
|
|
|
|
var dataKey = "declaration:" + kind + ":" + blockHoist;
|
|
var declarPath = !unique && path.getData(dataKey);
|
|
|
|
if (!declarPath) {
|
|
var declar = t.variableDeclaration(kind, []);
|
|
declar._generated = true;
|
|
declar._blockHoist = blockHoist;
|
|
|
|
var _path$unshiftContaine = path.unshiftContainer("body", [declar]);
|
|
|
|
declarPath = _path$unshiftContaine[0];
|
|
|
|
if (!unique) path.setData(dataKey, declarPath);
|
|
}
|
|
|
|
var declarator = t.variableDeclarator(opts.id, opts.init);
|
|
declarPath.node.declarations.push(declarator);
|
|
this.registerBinding(kind, declarPath.get("declarations").pop());
|
|
};
|
|
|
|
Scope.prototype.getProgramParent = function getProgramParent() {
|
|
var scope = this;
|
|
do {
|
|
if (scope.path.isProgram()) {
|
|
return scope;
|
|
}
|
|
} while (scope = scope.parent);
|
|
throw new Error("We couldn't find a Function or Program...");
|
|
};
|
|
|
|
Scope.prototype.getFunctionParent = function getFunctionParent() {
|
|
var scope = this;
|
|
do {
|
|
if (scope.path.isFunctionParent()) {
|
|
return scope;
|
|
}
|
|
} while (scope = scope.parent);
|
|
throw new Error("We couldn't find a Function or Program...");
|
|
};
|
|
|
|
Scope.prototype.getBlockParent = function getBlockParent() {
|
|
var scope = this;
|
|
do {
|
|
if (scope.path.isBlockParent()) {
|
|
return scope;
|
|
}
|
|
} while (scope = scope.parent);
|
|
throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
|
|
};
|
|
|
|
Scope.prototype.getAllBindings = function getAllBindings() {
|
|
var ids = (0, _create2.default)(null);
|
|
|
|
var scope = this;
|
|
do {
|
|
(0, _defaults2.default)(ids, scope.bindings);
|
|
scope = scope.parent;
|
|
} while (scope);
|
|
|
|
return ids;
|
|
};
|
|
|
|
Scope.prototype.getAllBindingsOfKind = function getAllBindingsOfKind() {
|
|
var ids = (0, _create2.default)(null);
|
|
|
|
for (var _iterator19 = arguments, _isArray19 = Array.isArray(_iterator19), _i19 = 0, _iterator19 = _isArray19 ? _iterator19 : (0, _getIterator3.default)(_iterator19);;) {
|
|
var _ref19;
|
|
|
|
if (_isArray19) {
|
|
if (_i19 >= _iterator19.length) break;
|
|
_ref19 = _iterator19[_i19++];
|
|
} else {
|
|
_i19 = _iterator19.next();
|
|
if (_i19.done) break;
|
|
_ref19 = _i19.value;
|
|
}
|
|
|
|
var kind = _ref19;
|
|
|
|
var scope = this;
|
|
do {
|
|
for (var name in scope.bindings) {
|
|
var binding = scope.bindings[name];
|
|
if (binding.kind === kind) ids[name] = binding;
|
|
}
|
|
scope = scope.parent;
|
|
} while (scope);
|
|
}
|
|
|
|
return ids;
|
|
};
|
|
|
|
Scope.prototype.bindingIdentifierEquals = function bindingIdentifierEquals(name, node) {
|
|
return this.getBindingIdentifier(name) === node;
|
|
};
|
|
|
|
Scope.prototype.warnOnFlowBinding = function warnOnFlowBinding(binding) {
|
|
if (_crawlCallsCount === 0 && binding && binding.path.isFlow()) {
|
|
console.warn("\n You or one of the Babel plugins you are using are using Flow declarations as bindings.\n Support for this will be removed in version 7. To find out the caller, grep for this\n message and change it to a `console.trace()`.\n ");
|
|
}
|
|
return binding;
|
|
};
|
|
|
|
Scope.prototype.getBinding = function getBinding(name) {
|
|
var scope = this;
|
|
|
|
do {
|
|
var binding = scope.getOwnBinding(name);
|
|
if (binding) return this.warnOnFlowBinding(binding);
|
|
} while (scope = scope.parent);
|
|
};
|
|
|
|
Scope.prototype.getOwnBinding = function getOwnBinding(name) {
|
|
return this.warnOnFlowBinding(this.bindings[name]);
|
|
};
|
|
|
|
Scope.prototype.getBindingIdentifier = function getBindingIdentifier(name) {
|
|
var info = this.getBinding(name);
|
|
return info && info.identifier;
|
|
};
|
|
|
|
Scope.prototype.getOwnBindingIdentifier = function getOwnBindingIdentifier(name) {
|
|
var binding = this.bindings[name];
|
|
return binding && binding.identifier;
|
|
};
|
|
|
|
Scope.prototype.hasOwnBinding = function hasOwnBinding(name) {
|
|
return !!this.getOwnBinding(name);
|
|
};
|
|
|
|
Scope.prototype.hasBinding = function hasBinding(name, noGlobals) {
|
|
if (!name) return false;
|
|
if (this.hasOwnBinding(name)) return true;
|
|
if (this.parentHasBinding(name, noGlobals)) return true;
|
|
if (this.hasUid(name)) return true;
|
|
if (!noGlobals && (0, _includes2.default)(Scope.globals, name)) return true;
|
|
if (!noGlobals && (0, _includes2.default)(Scope.contextVariables, name)) return true;
|
|
return false;
|
|
};
|
|
|
|
Scope.prototype.parentHasBinding = function parentHasBinding(name, noGlobals) {
|
|
return this.parent && this.parent.hasBinding(name, noGlobals);
|
|
};
|
|
|
|
Scope.prototype.moveBindingTo = function moveBindingTo(name, scope) {
|
|
var info = this.getBinding(name);
|
|
if (info) {
|
|
info.scope.removeOwnBinding(name);
|
|
info.scope = scope;
|
|
scope.bindings[name] = info;
|
|
}
|
|
};
|
|
|
|
Scope.prototype.removeOwnBinding = function removeOwnBinding(name) {
|
|
delete this.bindings[name];
|
|
};
|
|
|
|
Scope.prototype.removeBinding = function removeBinding(name) {
|
|
var info = this.getBinding(name);
|
|
if (info) {
|
|
info.scope.removeOwnBinding(name);
|
|
}
|
|
|
|
var scope = this;
|
|
do {
|
|
if (scope.uids[name]) {
|
|
scope.uids[name] = false;
|
|
}
|
|
} while (scope = scope.parent);
|
|
};
|
|
|
|
return Scope;
|
|
}();
|
|
|
|
Scope.globals = (0, _keys2.default)(_globals2.default.builtin);
|
|
Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];
|
|
exports.default = Scope;
|
|
module.exports = exports["default"]; |