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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@iota/bcs/dist/cjs

Просмотр файла: writer.d.ts

import type { Encoding } from './types.js';
export interface BcsWriterOptions {
    /** The initial size (in bytes) of the buffer that will be allocated */
    initialSize?: number;
    /** The maximum size (in bytes) that the buffer is allowed to grow to */
    maxSize?: number;
    /** The amount of bytes that will be allocated whenever additional memory is required */
    allocateSize?: number;
}
/**
 * Class used to write BCS data into a buffer. Initializer requires
 * some size of a buffer to init; default value for this buffer is 1KB.
 *
 * Most methods are chainable, so it is possible to write them in one go.
 *
 * @example
 * let serialized = new BcsWriter()
 *   .write8(10)
 *   .write32(1000000)
 *   .write64(10000001000000)
 *   .hex();
 */
/**
 * Set of methods that allows data encoding/decoding as standalone
 * BCS value or a part of a composed structure/vector.
 */
export declare class BcsWriter {
    private dataView;
    private bytePosition;
    private size;
    private maxSize;
    private allocateSize;
    constructor({ initialSize, maxSize, allocateSize, }?: BcsWriterOptions);
    private ensureSizeOrGrow;
    /**
     * Shift current cursor position by `bytes`.
     *
     * @param {Number} bytes Number of bytes to
     * @returns {this} Self for possible chaining.
     */
    shift(bytes: number): this;
    /**
     * Write a U8 value into a buffer and shift cursor position by 1.
     * @param {Number} value Value to write.
     * @returns {this}
     */
    write8(value: number | bigint): this;
    /**
     * Write a U16 value into a buffer and shift cursor position by 2.
     * @param {Number} value Value to write.
     * @returns {this}
     */
    write16(value: number | bigint): this;
    /**
     * Write a U32 value into a buffer and shift cursor position by 4.
     * @param {Number} value Value to write.
     * @returns {this}
     */
    write32(value: number | bigint): this;
    /**
     * Write a U64 value into a buffer and shift cursor position by 8.
     * @param {bigint} value Value to write.
     * @returns {this}
     */
    write64(value: number | bigint): this;
    /**
     * Write a U128 value into a buffer and shift cursor position by 16.
     *
     * @param {bigint} value Value to write.
     * @returns {this}
     */
    write128(value: number | bigint): this;
    /**
     * Write a U256 value into a buffer and shift cursor position by 16.
     *
     * @param {bigint} value Value to write.
     * @returns {this}
     */
    write256(value: number | bigint): this;
    /**
     * Write a ULEB value into a buffer and shift cursor position by number of bytes
     * written.
     * @param {Number} value Value to write.
     * @returns {this}
     */
    writeULEB(value: number): this;
    /**
     * Write a vector into a buffer by first writing the vector length and then calling
     * a callback on each passed value.
     *
     * @param {Array<Any>} vector Array of elements to write.
     * @param {WriteVecCb} cb Callback to call on each element of the vector.
     * @returns {this}
     */
    writeVec(vector: any[], cb: (writer: BcsWriter, el: any, i: number, len: number) => void): this;
    /**
     * Adds support for iterations over the object.
     * @returns {Uint8Array}
     */
    [Symbol.iterator](): Iterator<number, Iterable<number>>;
    /**
     * Get underlying buffer taking only value bytes (in case initial buffer size was bigger).
     * @returns {Uint8Array} Resulting bcs.
     */
    toBytes(): Uint8Array;
    /**
     * Represent data as 'hex' or 'base64'
     * @param encoding Encoding to use: 'base64' or 'hex'
     */
    toString(encoding: Encoding): string;
}

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