// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
/**
 * Use this to retrieve the numeric log level by it's associated name.
 * Defaults to INFO.
 */ export const LogLevels = {
  NOTSET: 0,
  DEBUG: 10,
  INFO: 20,
  WARN: 30,
  ERROR: 40,
  CRITICAL: 50
};
/** Permitted log level names */ export const LogLevelNames = Object.keys(LogLevels).filter((key)=>isNaN(Number(key)));
const byLevel = {
  [LogLevels.NOTSET]: "NOTSET",
  [LogLevels.DEBUG]: "DEBUG",
  [LogLevels.INFO]: "INFO",
  [LogLevels.WARN]: "WARN",
  [LogLevels.ERROR]: "ERROR",
  [LogLevels.CRITICAL]: "CRITICAL"
};
/**
 * Returns the numeric log level associated with the passed,
 * stringy log level name.
 */ export function getLevelByName(name) {
  const level = LogLevels[name];
  if (level !== undefined) {
    return level;
  }
  throw new Error(`Cannot get log level: no level named ${name}`);
}
/** Returns the stringy log level name provided the numeric log level. */ export function getLevelName(level) {
  const levelName = byLevel[level];
  if (levelName) {
    return levelName;
  }
  throw new Error(`Cannot get log level: no name for level: ${level}`);
}
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