Files
react/vendor/fbtransform/transforms/reactDisplayName.js

64 lines
2.0 KiB
JavaScript

/**
* Copyright 2013 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*global exports:true*/
"use strict";
var Syntax = require('esprima-fb').Syntax;
var catchup = require('jstransform/src/utils').catchup;
var append = require('jstransform/src/utils').append;
var getDocblock = require('jstransform/src/utils').getDocblock;
/**
* Transforms the following:
*
* var MyComponent = React.createClass({
* render: ...
* });
*
* into:
*
* var MyComponent = React.createClass({
* displayName: 'MyComponent',
* render: ...
* });
*/
function visitReactDisplayName(traverse, object, path, state) {
if (object.id.type === Syntax.Identifier &&
object.init &&
object.init.type === Syntax.CallExpression &&
object.init.callee.type === Syntax.MemberExpression &&
object.init.callee.object.type === Syntax.Identifier &&
object.init.callee.object.name === 'React' &&
object.init.callee.property.type === Syntax.Identifier &&
object.init.callee.property.name === 'createClass' &&
object.init['arguments'].length === 1 &&
object.init['arguments'][0].type === Syntax.ObjectExpression) {
var displayName = object.id.name;
catchup(object.init['arguments'][0].range[0] + 1, state);
append("displayName: '" + displayName + "',", state);
}
}
/**
* Will only run on @jsx files for now.
*/
visitReactDisplayName.test = function(object, path, state) {
return object.type === Syntax.VariableDeclarator && !!getDocblock(state).jsx;
};
exports.visitReactDisplayName = visitReactDisplayName;