node-pkware/dist/simple/Implode.d.ts

node.js implementation of StormLib's pkware compressor/de-compressor

import type { CompressionType, DictionarySize } from '../simple/types.js';
export declare class Implode {
    private inputBuffer;
    /**
     * Used for accessing the data within inputBuffer
     */
    private inputBufferView;
    /**
     * Used for caching inputBuffer.byteLength as that getter is doing some uncached computation to measure the length of
     * inputBuffer
     */
    private inputBufferSize;
    /**
     * The implode algorithm works by trimming off the beginning of inputBuffer byte by byte. Instead of actually
     * adjusting the inputBuffer every time a byte is handled we store the beginning of the unhandled section and use it
     * when indexing data that is being read.
     */
    private inputBufferStartIndex;
    private readonly outputBuffer;
    private outputBufferView;
    private outputBufferSize;
    private dictionarySizeMask;
    private readonly distCodes;
    private readonly distBits;
    private outBits;
    private readonly nChBits;
    private readonly nChCodes;
    constructor(input: ArrayBufferLike, compressionType: CompressionType, dictionarySize: DictionarySize);
    getResult(): ArrayBuffer;
    private setupTables;
    private outputHeader;
    private processInput;
    private writeTerminationLiteral;
    /**
     * @returns false - non flushable
     * @returns true - flushable
     * @returns null - flushable, but there might be a better repetition
     */
    private isRepetitionFlushable;
    /**
     * repetitions are at least 2 bytes long,
     * so the initial 2 bytes can be moved to the output as is
     */
    private skipFirstTwoBytes;
    private outputBits;
}