| <!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/iteration_helpers.html"> |
| <link rel="import" href="/tracing/value/diagnostics/diagnostic.html"> |
| <link rel="import" href="/tracing/value/diagnostics/value_ref.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.v.d', function() { |
| class RelatedValueMap extends tr.v.d.Diagnostic { |
| constructor() { |
| super(); |
| this.valuesByName_ = new Map(); |
| } |
| |
| /** |
| * Lookup a Histogram by name. Returns undefined if |name| is not found. |
| * |
| * @param {string} name |
| * @return {!tr.v.d.ValueRef|!tr.v.Histogram|undefined} |
| */ |
| get(name) { |
| return this.valuesByName_.get(name); |
| } |
| |
| /** |
| * Add a Histogram by an explicit name to this map. |
| * |
| * @param {string} name |
| * @param {!(tr.v.d.ValueRef|tr.v.Histogram)} value |
| */ |
| set(name, value) { |
| if (!(value instanceof tr.v.Histogram) && |
| !(value instanceof tr.v.d.ValueRef)) |
| throw new Error('Must be instanceof Histogram or ValueRef: ' + value); |
| |
| this.valuesByName_.set(name, value); |
| } |
| |
| /** |
| * Add a Histogram implicitly by its own name to this map. |
| * |
| * @param {!(tr.v.d.ValueRef|tr.v.Histogram)} value |
| */ |
| add(value) { |
| this.set(value.name, value); |
| } |
| |
| get length() { |
| return this.valuesByName_.size; |
| } |
| |
| *[Symbol.iterator]() { |
| for (var pair of this.valuesByName_) |
| yield pair; |
| } |
| |
| /** |
| * Resolve all ValueRefs into Values by looking up their guids in |
| * |valueSet|. |
| * If a value cannot be found and |opt_required| is true, then throw an |
| * Error. |
| * If a value cannot be found and |opt_required| is false, then the ValueRef |
| * will remain a ValueRef. |
| * |
| * @param {!tr.v.ValueSet} valueSet |
| * @param {boolean=} opt_required |
| */ |
| resolve(valueSet, opt_required) { |
| for (var [name, value] of this) { |
| if (!(value instanceof tr.v.d.ValueRef)) |
| continue; |
| |
| var guid = value.guid; |
| value = valueSet.lookup(guid); |
| if (value instanceof tr.v.Histogram) |
| this.valuesByName_.set(name, value); |
| else if (opt_required) |
| throw new Error('Unable to find Histogram ' + guid); |
| } |
| } |
| |
| asDictInto_(d) { |
| d.values = {}; |
| for (var [name, value] of this) |
| d.values[name] = value.guid; |
| } |
| |
| static fromDict(d) { |
| var map = new RelatedValueMap(); |
| tr.b.iterItems(d.values, function(name, guid) { |
| map.set(name, new tr.v.d.ValueRef(guid)); |
| }); |
| return map; |
| } |
| } |
| |
| tr.v.d.Diagnostic.register(RelatedValueMap, { |
| elementName: 'tr-v-ui-related-value-map-span' |
| }); |
| |
| return { |
| RelatedValueMap: RelatedValueMap |
| }; |
| }); |
| </script> |
