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الملفات الموجودة في هذا الـ Path:
.
..
caller.js
deprecations.js
levels.js
meta.js
multistream.js
proto.js
redaction.js
symbols.js
time.js
tools.js
transport-stream.js
transport.js
worker-pipeline.js
worker.js
مشاهدة ملف: levels.js
'use strict'
/* eslint no-prototype-builtins: 0 */
const {
lsCacheSym,
levelValSym,
useOnlyCustomLevelsSym,
streamSym,
formattersSym,
hooksSym
} = require('./symbols')
const { noop, genLog } = require('./tools')
const levels = {
trace: 10,
debug: 20,
info: 30,
warn: 40,
error: 50,
fatal: 60
}
const levelMethods = {
fatal: (hook) => {
const logFatal = genLog(levels.fatal, hook)
return function (...args) {
const stream = this[streamSym]
logFatal.call(this, ...args)
if (typeof stream.flushSync === 'function') {
try {
stream.flushSync()
} catch (e) {
// https://github.com/pinojs/pino/pull/740#discussion_r346788313
}
}
}
},
error: (hook) => genLog(levels.error, hook),
warn: (hook) => genLog(levels.warn, hook),
info: (hook) => genLog(levels.info, hook),
debug: (hook) => genLog(levels.debug, hook),
trace: (hook) => genLog(levels.trace, hook)
}
const nums = Object.keys(levels).reduce((o, k) => {
o[levels[k]] = k
return o
}, {})
const initialLsCache = Object.keys(nums).reduce((o, k) => {
o[k] = '{"level":' + Number(k)
return o
}, {})
function genLsCache (instance) {
const formatter = instance[formattersSym].level
const { labels } = instance.levels
const cache = {}
for (const label in labels) {
const level = formatter(labels[label], Number(label))
cache[label] = JSON.stringify(level).slice(0, -1)
}
instance[lsCacheSym] = cache
return instance
}
function isStandardLevel (level, useOnlyCustomLevels) {
if (useOnlyCustomLevels) {
return false
}
switch (level) {
case 'fatal':
case 'error':
case 'warn':
case 'info':
case 'debug':
case 'trace':
return true
default:
return false
}
}
function setLevel (level) {
const { labels, values } = this.levels
if (typeof level === 'number') {
if (labels[level] === undefined) throw Error('unknown level value' + level)
level = labels[level]
}
if (values[level] === undefined) throw Error('unknown level ' + level)
const preLevelVal = this[levelValSym]
const levelVal = this[levelValSym] = values[level]
const useOnlyCustomLevelsVal = this[useOnlyCustomLevelsSym]
const hook = this[hooksSym].logMethod
for (const key in values) {
if (levelVal > values[key]) {
this[key] = noop
continue
}
this[key] = isStandardLevel(key, useOnlyCustomLevelsVal) ? levelMethods[key](hook) : genLog(values[key], hook)
}
this.emit(
'level-change',
level,
levelVal,
labels[preLevelVal],
preLevelVal
)
}
function getLevel (level) {
const { levels, levelVal } = this
// protection against potential loss of Pino scope from serializers (edge case with circular refs - https://github.com/pinojs/pino/issues/833)
return (levels && levels.labels) ? levels.labels[levelVal] : ''
}
function isLevelEnabled (logLevel) {
const { values } = this.levels
const logLevelVal = values[logLevel]
return logLevelVal !== undefined && (logLevelVal >= this[levelValSym])
}
function mappings (customLevels = null, useOnlyCustomLevels = false) {
const customNums = customLevels
/* eslint-disable */
? Object.keys(customLevels).reduce((o, k) => {
o[customLevels[k]] = k
return o
}, {})
: null
/* eslint-enable */
const labels = Object.assign(
Object.create(Object.prototype, { Infinity: { value: 'silent' } }),
useOnlyCustomLevels ? null : nums,
customNums
)
const values = Object.assign(
Object.create(Object.prototype, { silent: { value: Infinity } }),
useOnlyCustomLevels ? null : levels,
customLevels
)
return { labels, values }
}
function assertDefaultLevelFound (defaultLevel, customLevels, useOnlyCustomLevels) {
if (typeof defaultLevel === 'number') {
const values = [].concat(
Object.keys(customLevels || {}).map(key => customLevels[key]),
useOnlyCustomLevels ? [] : Object.keys(nums).map(level => +level),
Infinity
)
if (!values.includes(defaultLevel)) {
throw Error(`default level:${defaultLevel} must be included in custom levels`)
}
return
}
const labels = Object.assign(
Object.create(Object.prototype, { silent: { value: Infinity } }),
useOnlyCustomLevels ? null : levels,
customLevels
)
if (!(defaultLevel in labels)) {
throw Error(`default level:${defaultLevel} must be included in custom levels`)
}
}
function assertNoLevelCollisions (levels, customLevels) {
const { labels, values } = levels
for (const k in customLevels) {
if (k in values) {
throw Error('levels cannot be overridden')
}
if (customLevels[k] in labels) {
throw Error('pre-existing level values cannot be used for new levels')
}
}
}
module.exports = {
initialLsCache,
genLsCache,
levelMethods,
getLevel,
setLevel,
isLevelEnabled,
mappings,
levels,
assertNoLevelCollisions,
assertDefaultLevelFound
}