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'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 freshness
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;