Implementation:SeleniumHQ Selenium Closure Log

Knowledge Sources	SeleniumHQ_Selenium Google Closure Library
Domains	JavaScript_Atoms, Vendored_Library
Last Updated	2026-02-12 00:00 GMT

Overview

Vendored Google Closure Library module providing basic strippable logging definitions used by Selenium JavaScript atoms.

Description

goog.log is a vendored copy of the Google Closure Library module. It provides a structured logging framework with Level-based severity (SEVERE, WARNING, INFO, CONFIG, FINE, FINER, FINEST), Logger instances, LogRecord objects, and a LogBuffer for buffered logging. Logging can be compiled out entirely via the goog.log.ENABLED define. Selenium uses this as part of its JavaScript atom infrastructure.

Usage

This module is consumed internally by Selenium's JavaScript atoms build system. Not imported directly by end users.

Code Reference

Source Location

• Repository: SeleniumHQ_Selenium
• File: third_party/closure/goog/log/log.js
• Lines: 1-1084

Key Exports

goog.provide('goog.log');
goog.provide('goog.log.Level');
goog.provide('goog.log.LogBuffer');
goog.provide('goog.log.LogRecord');
goog.provide('goog.log.Logger');

goog.log.ENABLED = goog.define('goog.log.ENABLED', goog.debug.LOGGING_ENABLED);
goog.log.Level = class Level { constructor(name, value) { ... } };

Related Pages

• Environment:SeleniumHQ_Selenium_Contributor_Development_Environment