@mrhiden/cstruct/lib/write-buffer-be.js

For packing and unpacking bytes (C like structures) in/from Buffer based on Object/Array type for parsing.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WriteBufferBE = void 0;
const write_buffer_1 = require("./write-buffer");
class WriteBufferBE extends write_buffer_1.WriteBuffer {
    u16(val = 0) {
        const buffer = Buffer.allocUnsafe(2);
        buffer.writeUInt16BE(val);
        this.moveOffset(buffer);
    }
    i16(val = 0) {
        const buffer = Buffer.allocUnsafe(2);
        buffer.writeInt16BE(val);
        this.moveOffset(buffer);
    }
    u32(val = 0) {
        const buffer = Buffer.allocUnsafe(4);
        buffer.writeUInt32BE(val);
        this.moveOffset(buffer);
    }
    i32(val = 0) {
        const buffer = Buffer.allocUnsafe(4);
        buffer.writeInt32BE(val);
        this.moveOffset(buffer);
    }
    u64(val = 0n) {
        const buffer = Buffer.allocUnsafe(8);
        buffer.writeBigUInt64BE(val);
        this.moveOffset(buffer);
    }
    i64(val = 0n) {
        const buffer = Buffer.allocUnsafe(8);
        buffer.writeBigInt64BE(val);
        this.moveOffset(buffer);
    }
    f(val = 0) {
        const buffer = Buffer.allocUnsafe(4);
        buffer.writeFloatBE(val);
        this.moveOffset(buffer);
    }
    d(val = 0) {
        const buffer = Buffer.allocUnsafe(8);
        buffer.writeDoubleBE(val);
        this.moveOffset(buffer);
    }
    constructor() {
        super();
        this._atomFunctions = new Map([
            ...[...this._atomFunctions],
            ['b16', (val) => this.i16(+Boolean(val))],
            ['b32', (val) => this.i32(+Boolean(val))],
            ['b64', (val) => this.i64(BigInt(val))],
            ['u16', (val = 0) => this.u16(val)],
            ['u32', (val = 0) => this.u32(val)],
            ['u64', (val = 0n) => this.u64(val)],
            ['i16', (val = 0) => this.i16(val)],
            ['i32', (val = 0) => this.i32(val)],
            ['i64', (val = 0n) => this.i64(val)],
            ['f', (val = 0) => this.f(val)],
            ['d', (val = 0) => this.d(val)],
        ]);
        this.addPredefinedAliases();
    }
}
exports.WriteBufferBE = WriteBufferBE;