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25 lines
403 B
JavaScript
25 lines
403 B
JavaScript
'use strict'
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class Registry {
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constructor () {
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this.counter = 0
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this.map = new WeakMap()
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}
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has (value) {
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return this.map.has(value)
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}
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get (value) {
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return this.map.get(value).descriptor
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}
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alloc (value) {
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const index = ++this.counter
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const pointer = { descriptor: null, index }
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this.map.set(value, pointer)
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return pointer
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}
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}
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module.exports = Registry
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