react-native/website/react-docgen/lib/handlers/propDocBlockHandler.js

46 lines
1.4 KiB
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 Documentation = require('../Documentation');
var getDocblock = require('../utils/docblock').getDocblock;
var getPropertyName = require('../utils/getPropertyName');
var getPropertyValuePath = require('../utils/getPropertyValuePath');
var types = require('recast').types.namedTypes;
var resolveToValue = require('../utils/resolveToValue');
function propDocBlockHandler(documentation: Documentation, path: NodePath) {
var propTypesPath = getPropertyValuePath(path, 'propTypes');
if (!propTypesPath) {
return;
}
propTypesPath = resolveToValue(propTypesPath);
if (!propTypesPath || !types.ObjectExpression.check(propTypesPath.node)) {
return;
}
propTypesPath.get('properties').each(function(propertyPath) {
// we only support documentation of actual properties, not spread
if (types.Property.check(propertyPath.node)) {
var propDescriptor = documentation.getPropDescriptor(
getPropertyName(propertyPath)
);
propDescriptor.description = getDocblock(propertyPath) || '';
}
});
}
module.exports = propDocBlockHandler;