b2b3d7944a
* for-of: IteratorClose spec compatibility. See #3: https://tc39.github.io/ecma262/#sec-iteratorclose * Update spec fixtures for for-of. * Fix IteratorClose case for remap-async-to-generator. * Fix IteratorClose case for async-generator-function test output. * Modify few tests according to iteratorClose fix. * Fix iteratorClose for helpers.slicedToArray also. * Update iteratorClose fixture for commonjs.
647 lines
17 KiB
JavaScript
647 lines
17 KiB
JavaScript
/* eslint max-len: "off" */
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import template from "babel-template";
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const helpers = {};
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export default helpers;
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helpers.typeof = template(`
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(typeof Symbol === "function" && typeof Symbol.iterator === "symbol")
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? function (obj) { return typeof obj; }
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: function (obj) {
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return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype
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? "symbol"
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: typeof obj;
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};
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`);
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helpers.jsx = template(`
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(function () {
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var REACT_ELEMENT_TYPE = (typeof Symbol === "function" && Symbol.for && Symbol.for("react.element")) || 0xeac7;
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return function createRawReactElement (type, props, key, children) {
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var defaultProps = type && type.defaultProps;
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var childrenLength = arguments.length - 3;
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if (!props && childrenLength !== 0) {
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// If we're going to assign props.children, we create a new object now
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// to avoid mutating defaultProps.
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props = {};
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}
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if (props && defaultProps) {
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for (var propName in defaultProps) {
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if (props[propName] === void 0) {
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props[propName] = defaultProps[propName];
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}
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}
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} else if (!props) {
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props = defaultProps || {};
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}
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if (childrenLength === 1) {
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props.children = children;
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} else if (childrenLength > 1) {
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var childArray = Array(childrenLength);
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for (var i = 0; i < childrenLength; i++) {
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childArray[i] = arguments[i + 3];
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}
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props.children = childArray;
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}
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return {
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$$typeof: REACT_ELEMENT_TYPE,
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type: type,
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key: key === undefined ? null : '' + key,
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ref: null,
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props: props,
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_owner: null,
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};
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};
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})()
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`);
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helpers.asyncIterator = template(`
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(function (iterable) {
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if (typeof Symbol === "function") {
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if (Symbol.asyncIterator) {
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var method = iterable[Symbol.asyncIterator];
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if (method != null) return method.call(iterable);
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}
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if (Symbol.iterator) {
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return iterable[Symbol.iterator]();
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}
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}
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throw new TypeError("Object is not async iterable");
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})
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`);
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helpers.asyncGenerator = template(`
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(function () {
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function AwaitValue(value) {
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this.value = value;
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}
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function AsyncGenerator(gen) {
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var front, back;
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function send(key, arg) {
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return new Promise(function (resolve, reject) {
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var request = {
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key: key,
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arg: arg,
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resolve: resolve,
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reject: reject,
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next: null
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};
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if (back) {
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back = back.next = request;
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} else {
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front = back = request;
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resume(key, arg);
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}
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});
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}
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function resume(key, arg) {
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try {
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var result = gen[key](arg)
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var value = result.value;
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if (value instanceof AwaitValue) {
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Promise.resolve(value.value).then(
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function (arg) { resume("next", arg); },
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function (arg) { resume("throw", arg); });
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} else {
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settle(result.done ? "return" : "normal", result.value);
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}
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} catch (err) {
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settle("throw", err);
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}
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}
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function settle(type, value) {
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switch (type) {
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case "return":
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front.resolve({ value: value, done: true });
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break;
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case "throw":
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front.reject(value);
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break;
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default:
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front.resolve({ value: value, done: false });
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break;
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}
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front = front.next;
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if (front) {
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resume(front.key, front.arg);
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} else {
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back = null;
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}
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}
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this._invoke = send;
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// Hide "return" method if generator return is not supported
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if (typeof gen.return !== "function") {
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this.return = undefined;
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}
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}
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if (typeof Symbol === "function" && Symbol.asyncIterator) {
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AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; };
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}
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AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); };
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AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); };
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AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
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return {
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wrap: function (fn) {
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return function () {
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return new AsyncGenerator(fn.apply(this, arguments));
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};
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},
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await: function (value) {
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return new AwaitValue(value);
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}
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};
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})()
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`);
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helpers.asyncGeneratorDelegate = template(`
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(function (inner, awaitWrap) {
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var iter = {}, waiting = false;
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function pump(key, value) {
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waiting = true;
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value = new Promise(function (resolve) { resolve(inner[key](value)); });
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return { done: false, value: awaitWrap(value) };
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};
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if (typeof Symbol === "function" && Symbol.iterator) {
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iter[Symbol.iterator] = function () { return this; };
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}
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iter.next = function (value) {
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if (waiting) {
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waiting = false;
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return value;
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}
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return pump("next", value);
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};
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if (typeof inner.throw === "function") {
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iter.throw = function (value) {
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if (waiting) {
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waiting = false;
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throw value;
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}
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return pump("throw", value);
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};
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}
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if (typeof inner.return === "function") {
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iter.return = function (value) {
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return pump("return", value);
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};
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}
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return iter;
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})
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`);
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helpers.asyncToGenerator = template(`
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(function (fn) {
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return function () {
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return new Promise((resolve, reject) => {
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var gen = fn.apply(this, arguments);
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function step(key, arg) {
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try {
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var info = gen[key](arg);
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var value = info.value;
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} catch (error) {
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reject(error);
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return;
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}
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if (info.done) {
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resolve(value);
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} else {
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Promise.resolve(value).then(_next, _throw);
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}
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}
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function _next(value) { step("next", value); }
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function _throw(err) { step("throw", err); }
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_next();
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});
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};
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})
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`);
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helpers.classCallCheck = template(`
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(function (instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError("Cannot call a class as a function");
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}
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});
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`);
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helpers.createClass = template(`
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(function() {
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function defineProperties(target, props) {
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for (var i = 0; i < props.length; i ++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, descriptor.key, descriptor);
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}
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}
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return function (Constructor, protoProps, staticProps) {
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if (protoProps) defineProperties(Constructor.prototype, protoProps);
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if (staticProps) defineProperties(Constructor, staticProps);
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return Constructor;
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};
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})()
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`);
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helpers.defineEnumerableProperties = template(`
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(function (obj, descs) {
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for (var key in descs) {
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var desc = descs[key];
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desc.configurable = desc.enumerable = true;
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if ("value" in desc) desc.writable = true;
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Object.defineProperty(obj, key, desc);
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}
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// Symbols are not enumerated over by for-in loops. If native
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// Symbols are available, fetch all of the descs object's own
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// symbol properties and define them on our target object too.
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if (Object.getOwnPropertySymbols) {
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var objectSymbols = Object.getOwnPropertySymbols(descs);
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for (var i = 0; i < objectSymbols.length; i++) {
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var sym = objectSymbols[i];
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var desc = descs[sym];
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desc.configurable = desc.enumerable = true;
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if ("value" in desc) desc.writable = true;
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Object.defineProperty(obj, sym, desc);
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}
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}
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return obj;
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})
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`);
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helpers.defaults = template(`
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(function (obj, defaults) {
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var keys = Object.getOwnPropertyNames(defaults);
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for (var i = 0; i < keys.length; i++) {
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var key = keys[i];
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var value = Object.getOwnPropertyDescriptor(defaults, key);
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if (value && value.configurable && obj[key] === undefined) {
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Object.defineProperty(obj, key, value);
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}
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}
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return obj;
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})
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`);
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helpers.defineProperty = template(`
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(function (obj, key, value) {
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// Shortcircuit the slow defineProperty path when possible.
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// We are trying to avoid issues where setters defined on the
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// prototype cause side effects under the fast path of simple
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// assignment. By checking for existence of the property with
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// the in operator, we can optimize most of this overhead away.
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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});
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`);
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helpers.extends = template(`
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Object.assign || (function (target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i];
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for (var key in source) {
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if (Object.prototype.hasOwnProperty.call(source, key)) {
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target[key] = source[key];
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}
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}
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}
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return target;
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})
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`);
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helpers.get = template(`
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(function get(object, property, receiver) {
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if (object === null) object = Function.prototype;
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var desc = Object.getOwnPropertyDescriptor(object, property);
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if (desc === undefined) {
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var parent = Object.getPrototypeOf(object);
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if (parent === null) {
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return undefined;
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} else {
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return get(parent, property, receiver);
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}
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} else if ("value" in desc) {
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return desc.value;
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} else {
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var getter = desc.get;
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if (getter === undefined) {
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return undefined;
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}
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return getter.call(receiver);
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}
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});
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`);
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helpers.inherits = template(`
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(function (subClass, superClass) {
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if (typeof superClass !== "function" && superClass !== null) {
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throw new TypeError("Super expression must either be null or a function");
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}
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subClass.prototype = Object.create(superClass && superClass.prototype, {
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constructor: {
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value: subClass,
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enumerable: false,
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writable: true,
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configurable: true
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}
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});
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if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
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})
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`);
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helpers.inheritsLoose = template(`
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(function (subClass, superClass) {
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subClass.prototype = Object.create(superClass.prototype);
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subClass.prototype.constructor = subClass;
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subClass.__proto__ = superClass;
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})
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`);
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helpers.instanceof = template(`
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(function (left, right) {
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if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
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return right[Symbol.hasInstance](left);
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} else {
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return left instanceof right;
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}
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});
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`);
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helpers.interopRequireDefault = template(`
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(function (obj) {
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return obj && obj.__esModule ? obj : { default: obj };
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})
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`);
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helpers.interopRequireWildcard = template(`
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(function (obj) {
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if (obj && obj.__esModule) {
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return obj;
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} else {
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var newObj = {};
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if (obj != null) {
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for (var key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
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}
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}
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newObj.default = obj;
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return newObj;
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}
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})
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`);
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helpers.newArrowCheck = template(`
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(function (innerThis, boundThis) {
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if (innerThis !== boundThis) {
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throw new TypeError("Cannot instantiate an arrow function");
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}
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});
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`);
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helpers.objectDestructuringEmpty = template(`
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(function (obj) {
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if (obj == null) throw new TypeError("Cannot destructure undefined");
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});
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`);
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helpers.objectWithoutProperties = template(`
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(function (source, excluded) {
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if (source == null) return {};
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var target = {};
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var sourceKeys = Object.keys(source);
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var key, i;
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for (i = 0; i < sourceKeys.length; i++) {
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key = sourceKeys[i];
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if (excluded.indexOf(key) >= 0) continue;
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target[key] = source[key];
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}
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if (Object.getOwnPropertySymbols) {
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var sourceSymbolKeys = Object.getOwnPropertySymbols(source);
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for (i = 0; i < sourceSymbolKeys.length; i++) {
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key = sourceSymbolKeys[i];
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if (excluded.indexOf(key) >= 0) continue;
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if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
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target[key] = source[key];
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}
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}
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return target;
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})
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`);
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helpers.possibleConstructorReturn = template(`
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(function (self, call) {
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if (call && (typeof call === "object" || typeof call === "function")) {
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return call;
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}
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if (!self) {
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throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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}
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return self;
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});
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`);
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helpers.selfGlobal = template(`
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typeof global === "undefined" ? self : global
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`);
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helpers.set = template(`
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(function set(object, property, value, receiver) {
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var desc = Object.getOwnPropertyDescriptor(object, property);
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if (desc === undefined) {
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var parent = Object.getPrototypeOf(object);
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if (parent !== null) {
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set(parent, property, value, receiver);
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}
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} else if ("value" in desc && desc.writable) {
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desc.value = value;
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} else {
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var setter = desc.set;
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if (setter !== undefined) {
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setter.call(receiver, value);
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}
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}
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return value;
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});
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`);
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helpers.slicedToArray = template(`
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(function () {
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// Broken out into a separate function to avoid deoptimizations due to the try/catch for the
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// array iterator case.
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function sliceIterator(arr, i) {
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// this is an expanded form of \`for...of\` that properly supports abrupt completions of
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// iterators etc. variable names have been minimised to reduce the size of this massive
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// helper. sometimes spec compliancy is annoying :(
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//
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// _n = _iteratorNormalCompletion
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// _d = _didIteratorError
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// _e = _iteratorError
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// _i = _iterator
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// _s = _step
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var _arr = [];
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var _n = true;
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var _d = false;
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var _e = undefined;
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try {
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for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
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_arr.push(_s.value);
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if (i && _arr.length === i) break;
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}
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} catch (err) {
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_d = true;
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_e = err;
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} finally {
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try {
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if (!_n && _i["return"] != null) _i["return"]();
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} finally {
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if (_d) throw _e;
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}
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}
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return _arr;
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}
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return function (arr, i) {
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if (Array.isArray(arr)) {
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return arr;
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} else if (Symbol.iterator in Object(arr)) {
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return sliceIterator(arr, i);
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} else {
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throw new TypeError("Invalid attempt to destructure non-iterable instance");
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}
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};
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})();
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`);
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helpers.slicedToArrayLoose = template(`
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(function (arr, i) {
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if (Array.isArray(arr)) {
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return arr;
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} else if (Symbol.iterator in Object(arr)) {
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var _arr = [];
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for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) {
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_arr.push(_step.value);
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if (i && _arr.length === i) break;
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}
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return _arr;
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} else {
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throw new TypeError("Invalid attempt to destructure non-iterable instance");
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}
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});
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`);
|
|
|
|
helpers.taggedTemplateLiteral = template(`
|
|
(function (strings, raw) {
|
|
return Object.freeze(Object.defineProperties(strings, {
|
|
raw: { value: Object.freeze(raw) }
|
|
}));
|
|
});
|
|
`);
|
|
|
|
helpers.taggedTemplateLiteralLoose = template(`
|
|
(function (strings, raw) {
|
|
strings.raw = raw;
|
|
return strings;
|
|
});
|
|
`);
|
|
|
|
helpers.temporalRef = template(`
|
|
(function (val, name, undef) {
|
|
if (val === undef) {
|
|
throw new ReferenceError(name + " is not defined - temporal dead zone");
|
|
} else {
|
|
return val;
|
|
}
|
|
})
|
|
`);
|
|
|
|
helpers.temporalUndefined = template(`
|
|
({})
|
|
`);
|
|
|
|
helpers.toArray = template(`
|
|
(function (arr) {
|
|
return Array.isArray(arr) ? arr : Array.from(arr);
|
|
});
|
|
`);
|
|
|
|
helpers.toConsumableArray = template(`
|
|
(function (arr) {
|
|
if (Array.isArray(arr)) {
|
|
for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
|
|
return arr2;
|
|
} else {
|
|
return Array.from(arr);
|
|
}
|
|
});
|
|
`);
|
|
|
|
helpers.skipFirstGeneratorNext = template(`
|
|
(function (fn) {
|
|
return function () {
|
|
var it = fn.apply(this, arguments);
|
|
it.next();
|
|
return it;
|
|
}
|
|
});
|
|
`);
|
|
|
|
helpers.toPropertyKey = template(`
|
|
(function (key) {
|
|
if (typeof key === "symbol") {
|
|
return key;
|
|
} else {
|
|
return String(key);
|
|
}
|
|
});
|
|
`);
|