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Revert "fixes #30: auto generate type definitions from source"
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,120 +1,151 @@ | ||
| 'use strict'; | ||
|
|
||
| class LRU { | ||
| constructor(max = 0, ttl = 0) { | ||
| this.first = null; | ||
| this.items = {}; | ||
| this.last = null; | ||
| this.max = max; | ||
| this.size = 0; | ||
| this.ttl = ttl; | ||
| } | ||
| has(key) { | ||
| return key in this.items; | ||
| } | ||
| clear() { | ||
| this.first = null; | ||
| this.items = {}; | ||
| this.last = null; | ||
| this.size = 0; | ||
| return this; | ||
| } | ||
| delete(key) { | ||
| if (this.has(key)) { | ||
| const item = this.items[key]; | ||
| delete this.items[key]; | ||
| this.size--; | ||
| if (item.prev !== null) { | ||
| item.prev.next = item.next; | ||
| } | ||
| if (item.next !== null) { | ||
| item.next.prev = item.prev; | ||
| } | ||
| if (this.first === item) { | ||
| this.first = item.next; | ||
| } | ||
| if (this.last === item) { | ||
| this.last = item.prev; | ||
| } | ||
| } | ||
| return this; | ||
| } | ||
| evict() { | ||
| const item = this.first; | ||
| delete this.items[item.key]; | ||
| this.first = item.next; | ||
| this.first.prev = null; | ||
| this.size--; | ||
| return this; | ||
| } | ||
| get(key) { | ||
| let result; | ||
| if (this.has(key)) { | ||
| const item = this.items[key]; | ||
| if (this.ttl > 0 && item.expiry <= new Date().getTime()) { | ||
| this.delete(key); | ||
| } | ||
| else { | ||
| result = item.value; | ||
| this.set(key, result, true); | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
| keys() { | ||
| return Object.keys(this.items); | ||
| } | ||
| set(key, value, bypass = false) { | ||
| let item; | ||
| if (bypass || this.has(key)) { | ||
| item = this.items[key]; | ||
| item.value = value; | ||
| if (this.last !== item) { | ||
| const last = this.last, next = item.next, prev = item.prev; | ||
| if (this.first === item) { | ||
| this.first = item.next; | ||
| } | ||
| item.next = null; | ||
| item.prev = this.last; | ||
| last.next = item; | ||
| if (prev !== null) { | ||
| prev.next = next; | ||
| } | ||
| if (next !== null) { | ||
| next.prev = prev; | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| if (this.max > 0 && this.size === this.max) { | ||
| this.evict(); | ||
| } | ||
| item = this.items[key] = { | ||
| expiry: this.ttl > 0 ? new Date().getTime() + this.ttl : this.ttl, | ||
| key: key, | ||
| prev: this.last, | ||
| next: null, | ||
| value | ||
| }; | ||
| if (++this.size === 1) { | ||
| this.first = item; | ||
| } | ||
| else { | ||
| this.last.next = item; | ||
| } | ||
| } | ||
| this.last = item; | ||
| return this; | ||
| } | ||
| } | ||
| function factory(max = 1000, ttl = 0) { | ||
| if (isNaN(max) || max < 0) { | ||
| throw new TypeError("Invalid max value"); | ||
| } | ||
| if (isNaN(ttl) || ttl < 0) { | ||
| throw new TypeError("Invalid ttl value"); | ||
| } | ||
| return new LRU(max, ttl); | ||
| } | ||
| class LRU { | ||
| constructor (max = 0, ttl = 0) { | ||
| this.first = null; | ||
| this.items = {}; | ||
| this.last = null; | ||
| this.max = max; | ||
| this.size = 0; | ||
| this.ttl = ttl; | ||
| } | ||
|
|
||
| has (key) { | ||
| return key in this.items; | ||
| } | ||
|
|
||
| clear () { | ||
| this.first = null; | ||
| this.items = {}; | ||
| this.last = null; | ||
| this.size = 0; | ||
|
|
||
| return this; | ||
| } | ||
|
|
||
| delete (key) { | ||
| if (this.has(key)) { | ||
| const item = this.items[key]; | ||
|
|
||
| delete this.items[key]; | ||
| this.size--; | ||
|
|
||
| if (item.prev !== null) { | ||
| item.prev.next = item.next; | ||
| } | ||
|
|
||
| if (item.next !== null) { | ||
| item.next.prev = item.prev; | ||
| } | ||
|
|
||
| if (this.first === item) { | ||
| this.first = item.next; | ||
| } | ||
|
|
||
| if (this.last === item) { | ||
| this.last = item.prev; | ||
| } | ||
| } | ||
|
|
||
| return this; | ||
| } | ||
|
|
||
| evict () { | ||
| const item = this.first; | ||
|
|
||
| delete this.items[item.key]; | ||
| this.first = item.next; | ||
| this.first.prev = null; | ||
| this.size--; | ||
|
|
||
| return this; | ||
| } | ||
|
|
||
| get (key) { | ||
| let result; | ||
|
|
||
| if (this.has(key)) { | ||
| const item = this.items[key]; | ||
|
|
||
| if (this.ttl > 0 && item.expiry <= new Date().getTime()) { | ||
| this.delete(key); | ||
| } else { | ||
| result = item.value; | ||
| this.set(key, result, true); | ||
| } | ||
| } | ||
|
|
||
| return result; | ||
| } | ||
|
|
||
| keys () { | ||
| return Object.keys(this.items); | ||
| } | ||
|
|
||
| set (key, value, bypass = false) { | ||
| let item; | ||
|
|
||
| if (bypass || this.has(key)) { | ||
| item = this.items[key]; | ||
| item.value = value; | ||
|
|
||
| if (this.last !== item) { | ||
| const last = this.last, | ||
| next = item.next, | ||
| prev = item.prev; | ||
|
|
||
| if (this.first === item) { | ||
| this.first = item.next; | ||
| } | ||
|
|
||
| item.next = null; | ||
| item.prev = this.last; | ||
| last.next = item; | ||
|
|
||
| if (prev !== null) { | ||
| prev.next = next; | ||
| } | ||
|
|
||
| if (next !== null) { | ||
| next.prev = prev; | ||
| } | ||
| } | ||
| } else { | ||
| if (this.max > 0 && this.size === this.max) { | ||
| this.evict(); | ||
| } | ||
|
|
||
| item = this.items[key] = { | ||
| expiry: this.ttl > 0 ? new Date().getTime() + this.ttl : this.ttl, | ||
| key: key, | ||
| prev: this.last, | ||
| next: null, | ||
| value | ||
| }; | ||
|
|
||
| if (++this.size === 1) { | ||
| this.first = item; | ||
| } else { | ||
| this.last.next = item; | ||
| } | ||
| } | ||
|
|
||
| this.last = item; | ||
|
|
||
| return this; | ||
| } | ||
| } | ||
|
|
||
| function factory (max = 1000, ttl = 0) { | ||
| if (isNaN(max) || max < 0) { | ||
| throw new TypeError("Invalid max value"); | ||
| } | ||
|
|
||
| if (isNaN(ttl) || ttl < 0) { | ||
| throw new TypeError("Invalid ttl value"); | ||
| } | ||
|
|
||
| return new LRU(max, ttl); | ||
| } | ||
|
|
||
| module.exports = factory; |
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