Files
memoizee/ext/max.js
Mariusz Nowak eb72d16bf6 Major reorganization and partial refactoring
- Move out main modules from `lib` folder
- Introduce `normalizer` based configurations, and convert primitive and regular handlers into thos normalizers (can be found in lib/normalizers folder). Custom normalizers can be provided at run time via `normaizer` option
- Provide `plain` module which does not load any extensions or normalizers. Any extensions that have to be used should be required upfront and normalizers should be provided directly
- Remove `method` option, instead `methods` and `methods-plan` modules are provided which generate descriptors for lazy created memoized methods
- `profile` is no longer extension. To be used it should be required directly
- Improve logic for `async` handling
- Take out `max` extensionLRU logic into external `lru-queue` package
- Remove `context` option
- Remove possibility to access original arguments when resolvers are used
- Assure expected length of memoized functions
2014-04-27 12:11:06 +02:00

27 lines
692 B
JavaScript

// Limit cache size, LRU (least recently used) algorithm.
'use strict';
var toPosInteger = require('es5-ext/number/to-pos-integer')
, lruQueue = require('lru-queue')
, extensions = require('../lib/registered-extensions');
extensions.max = function (max, conf, options) {
var postfix, queue, hit;
max = toPosInteger(max);
if (!max) return;
queue = lruQueue(max);
postfix = (options.async && extensions.async) ? 'async' : '';
conf.on('set' + postfix, hit = function (id) {
id = queue.hit(id);
if (id === undefined) return;
conf.delete(id);
});
conf.on('get' + postfix, hit);
conf.on('delete' + postfix, queue.delete);
conf.on('clear' + postfix, queue.clear);
};