react-native/website/react-docgen/lib/utils/getPropertyValuePath.js

32 lines
901 B
JavaScript

/*
* Copyright (c) 2015, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
/**
* @flow
*/
"use strict";
var types = require('recast').types.namedTypes;
var getPropertyName = require('./getPropertyName');
/**
* Given an ObjectExpression, this function returns the path of the value of
* the property with name `propertyName`.
*/
function getPropertyValuePath(path: NodePath, propertyName: string): ?NodePath {
types.ObjectExpression.assert(path.node);
return path.get('properties')
.filter(propertyPath => getPropertyName(propertyPath) === propertyName)
.map(propertyPath => propertyPath.get('value'))[0];
}
module.exports = getPropertyValuePath;