Members
(constant) lighthouse
- License:
- Copyright 2016 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
- Source:
Methods
captureJSCallUsage(funcRef, setnon-null) → {function}
Tracks function call usage. Used by captureJSCalls to inject code into the page.
Parameters:
| Name | Type | Description |
|---|---|---|
funcRef |
function
|
The function call to track. |
set |
Set
|
An empty set to populate with stack traces. Should be on the global object. |
Returns:
- Type:
-
function
A wrapper around the original function.
checkTimeSinceLastLongTask()
Used by _waitForCPUIdle and executed in the context of the page, returns time since last long task. instanbul ignore next
getCSSPropsInStyleSheet(parseTreenon-null) → (non-null) {Array}
Parameters:
| Name | Type | Description |
|---|---|---|
parseTree |
gonzales.AST
|
Returns:
- Type:
-
Array
registerPerformanceObserverInPage()
Used by _waitForCPUIdle and executed in the context of the page, updates the ____lastLongTask property on window to the end time of the last long task. instanbul ignore next
wrapRuntimeEvalErrorInBrowser(err)
The exceptionDetails provided by the debugger protocol does not contain the useful
information such as name, message, and stack trace of the error when it's wrapped in a
promise. Instead, map to a successful object that contains this information.
Parameters:
| Name | Type | Description |
|---|---|---|
err |
string
|
Error
|
The error to convert istanbul ignore next |
Type Definitions
GathererResults
Type:
-
Object.<string, !Array.<!Promise.<*>>>