59 lines
1.0 KiB
JavaScript
59 lines
1.0 KiB
JavaScript
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import {
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AbstractStruct,
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addStruct,
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AbstractUpdateEncoder, StructStore, Transaction, ID // eslint-disable-line
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} from '../internals.js'
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export const structGCRefNumber = 0
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/**
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* @private
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*/
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export class GC extends AbstractStruct {
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get deleted () {
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return true
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}
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delete () {}
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/**
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* @param {GC} right
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* @return {boolean}
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*/
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mergeWith (right) {
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this.length += right.length
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return true
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}
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/**
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* @param {Transaction} transaction
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* @param {number} offset
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*/
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integrate (transaction, offset) {
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if (offset > 0) {
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this.id.clock += offset
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this.length -= offset
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}
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addStruct(transaction.doc.store, this)
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}
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/**
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* @param {AbstractUpdateEncoder} encoder
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* @param {number} offset
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*/
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write (encoder, offset) {
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encoder.writeInfo(structGCRefNumber)
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encoder.writeLen(this.length - offset)
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}
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/**
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* @param {Transaction} transaction
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* @param {StructStore} store
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* @return {null | number}
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*/
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getMissing (transaction, store) {
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return null
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}
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}
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