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- "use strict";
- exports.__esModule = true;
- exports["default"] = replaceShorthandObjectMethod;
- var util = _interopRequireWildcard(require("./util"));
- function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
- function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
- /**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
- // this function converts a shorthand object generator method into a normal
- // (non-shorthand) object property which is a generator function expression. for
- // example, this:
- //
- // var foo = {
- // *bar(baz) { return 5; }
- // }
- //
- // should be replaced with:
- //
- // var foo = {
- // bar: function*(baz) { return 5; }
- // }
- //
- // to do this, it clones the parameter array and the body of the object generator
- // method into a new FunctionExpression.
- //
- // this method can be passed any Function AST node path, and it will return
- // either:
- // a) the path that was passed in (iff the path did not need to be replaced) or
- // b) the path of the new FunctionExpression that was created as a replacement
- // (iff the path did need to be replaced)
- //
- // In either case, though, the caller can count on the fact that the return value
- // is a Function AST node path.
- //
- // If this function is called with an AST node path that is not a Function (or with an
- // argument that isn't an AST node path), it will throw an error.
- function replaceShorthandObjectMethod(path) {
- var t = util.getTypes();
- if (!path.node || !t.isFunction(path.node)) {
- throw new Error("replaceShorthandObjectMethod can only be called on Function AST node paths.");
- }
- // this function only replaces shorthand object methods (called ObjectMethod
- // in Babel-speak).
- if (!t.isObjectMethod(path.node)) {
- return path;
- }
- // this function only replaces generators.
- if (!path.node.generator) {
- return path;
- }
- var parameters = path.node.params.map(function (param) {
- return t.cloneDeep(param);
- });
- var functionExpression = t.functionExpression(null,
- // id
- parameters,
- // params
- t.cloneDeep(path.node.body),
- // body
- path.node.generator, path.node.async);
- util.replaceWithOrRemove(path, t.objectProperty(t.cloneDeep(path.node.key),
- // key
- functionExpression,
- //value
- path.node.computed,
- // computed
- false // shorthand
- ));
- // path now refers to the ObjectProperty AST node path, but we want to return a
- // Function AST node path for the function expression we created. we know that
- // the FunctionExpression we just created is the value of the ObjectProperty,
- // so return the "value" path off of this path.
- return path.get("value");
- }
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