| <!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/base/unit.html"> |
| <link rel="import" href="/tracing/value/diagnostics/diagnostic_map.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.v', function() { |
| var MAX_DIAGNOSTIC_MAPS = 16; |
| |
| class NumericBase { |
| constructor(unit) { |
| if (!(unit instanceof tr.b.Unit)) |
| throw new Error('Expected provided unit to be instance of Unit'); |
| |
| this.unit = unit; |
| } |
| |
| asDict() { |
| var d = { |
| unit: this.unit.asJSON() |
| }; |
| |
| this.asDictInto_(d); |
| return d; |
| } |
| |
| static fromDict(d) { |
| if (d.type === 'scalar') |
| return ScalarNumeric.fromDict(d); |
| |
| throw new Error('Not implemented'); |
| } |
| } |
| |
| class ScalarNumeric extends NumericBase { |
| constructor(unit, value) { |
| if (!(unit instanceof tr.b.Unit)) |
| throw new Error('Expected Unit'); |
| |
| if (!(typeof(value) == 'number')) |
| throw new Error('Expected value to be number'); |
| |
| super(unit); |
| this.value = value; |
| } |
| |
| asDictInto_(d) { |
| d.type = 'scalar'; |
| |
| // Infinity and NaN are left out of JSON for security reasons that do not |
| // apply to our use cases. |
| if (this.value === Infinity) |
| d.value = 'Infinity'; |
| else if (this.value === -Infinity) |
| d.value = '-Infinity'; |
| else if (isNaN(this.value)) |
| d.value = 'NaN'; |
| else |
| d.value = this.value; |
| } |
| |
| toString() { |
| return this.unit.format(this.value); |
| } |
| |
| static fromDict(d) { |
| // Infinity and NaN are left out of JSON for security reasons that do not |
| // apply to our use cases. |
| if (typeof(d.value) === 'string') { |
| if (d.value === '-Infinity') { |
| d.value = -Infinity; |
| } else if (d.value === 'Infinity') { |
| d.value = Infinity; |
| } else if (d.value === 'NaN') { |
| d.value = NaN; |
| } |
| } |
| |
| return new ScalarNumeric(tr.b.Unit.fromJSON(d.unit), d.value); |
| } |
| } |
| |
| return { |
| NumericBase: NumericBase, |
| ScalarNumeric: ScalarNumeric |
| }; |
| }); |
| </script> |
