| <!DOCTYPE html> |
| <!-- |
| Copyright 2016 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/tracing/base/extension_registry.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.v.d', function() { |
| class Diagnostic { |
| asDict() { |
| var result = {type: this.constructor.name}; |
| this.asDictInto_(result); |
| return result; |
| } |
| |
| asDictInto_(d) { |
| throw new Error('Abstract virtual method'); |
| } |
| |
| static fromDict(d) { |
| var typeInfo = Diagnostic.findTypeInfoWithName(d.type); |
| if (!typeInfo) |
| throw new Error('Unrecognized diagnostic type: ' + d.type); |
| |
| return typeInfo.constructor.fromDict(d); |
| } |
| } |
| |
| var options = new tr.b.ExtensionRegistryOptions(tr.b.BASIC_REGISTRY_MODE); |
| options.defaultMetadata = {}; |
| options.mandatoryBaseClass = Diagnostic; |
| tr.b.decorateExtensionRegistry(Diagnostic, options); |
| |
| Diagnostic.addEventListener('will-register', function(e) { |
| var constructor = e.typeInfo.constructor; |
| if (!(constructor.fromDict instanceof Function) || |
| (constructor.fromDict === Diagnostic.fromDict) || |
| (constructor.fromDict.length !== 1)) { |
| throw new Error('Diagnostics must define fromDict(d)'); |
| } |
| }); |
| |
| return { |
| Diagnostic: Diagnostic |
| }; |
| }); |
| </script> |
