You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
3.7 KiB
81 lines
3.7 KiB
"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"); |
|
} |