69 lines
1.3 KiB
JavaScript
69 lines
1.3 KiB
JavaScript
"use strict";
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/**
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* Manages a local cache of chunks.
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*/
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class ChunkCache
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{
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constructor()
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{
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this.chunks = new Map();
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}
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/**
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* Adds the specified chunks to the chunk cache.
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* @param {Chunk[]} chunks The chunks to add.
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*/
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addChunks(...chunks)
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{
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for (let { reference, chunk } of chunks) {
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this.chunks.set(reference.toString(), chunk);
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}
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}
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/**
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* Figures out whether a chunk with the specified chunk reference is
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* currently present in this chunk cache.
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* @param {ChunkReference} chunkRef The chunk reference to search for.
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* @return {Boolean} Whether the specified chunk reference is
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* currently in this chunk cache.
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*/
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hasChunk(chunkRef)
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{
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return this.chunks.has(chunkRef.toString());
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}
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/**
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* Forgets the specified chunk references.
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* @param {ChunkReference[]} chunkRefs References to the chunks to forget.
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*/
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forgetChunk(...chunkRefs)
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{
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for (let chunkRef of chunkRefs)
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this.chunks.delete(chunkRef.toString());
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}
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/**
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* Forgets all the chunks currently in the chunk cache.
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*/
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forgetAll()
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{
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this.chunks = new Map();
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}
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/**
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* Returns the number of chunks currently in the chunk cache.
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*/
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get CacheSize()
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{
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return this.chunks.size;
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}
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[Symbol.iterator]()
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{
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return this.chunks[Symbol.iterator];
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}
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}
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export default ChunkCache;
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