| "use strict" |
| exports.__esModule = true |
| |
| const log = require('debug')('eslint-module-utils:ModuleCache') |
| |
| class ModuleCache { |
| constructor(map) { |
| this.map = map || new Map() |
| } |
| |
| /** |
| * returns value for returning inline |
| * @param {[type]} cacheKey [description] |
| * @param {[type]} result [description] |
| */ |
| set(cacheKey, result) { |
| this.map.set(cacheKey, { result, lastSeen: process.hrtime() }) |
| log('setting entry for', cacheKey) |
| return result |
| } |
| |
| get(cacheKey, settings) { |
| if (this.map.has(cacheKey)) { |
| const f = this.map.get(cacheKey) |
| // check fresness |
| if (process.hrtime(f.lastSeen)[0] < settings.lifetime) return f.result |
| } else log('cache miss for', cacheKey) |
| // cache miss |
| return undefined |
| } |
| |
| } |
| |
| ModuleCache.getSettings = function (settings) { |
| const cacheSettings = Object.assign({ |
| lifetime: 30, // seconds |
| }, settings['import/cache']) |
| |
| // parse infinity |
| if (cacheSettings.lifetime === '∞' || cacheSettings.lifetime === 'Infinity') { |
| cacheSettings.lifetime = Infinity |
| } |
| |
| return cacheSettings |
| } |
| |
| exports.default = ModuleCache |