web0715/13.webpack/demo1/node_modules/@jsonjoy.com/util/lib/buffers/Reader.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Reader = void 0;
const decodeUtf8_1 = require("./utf8/decodeUtf8");
class Reader {
    constructor() {
        this.uint8 = new Uint8Array([]);
        this.view = new DataView(this.uint8.buffer);
        this.x = 0;
    }
    reset(uint8) {
        this.x = 0;
        this.uint8 = uint8;
        this.view = new DataView(uint8.buffer, uint8.byteOffset, uint8.length);
    }
    peak() {
        return this.view.getUint8(this.x);
    }
    skip(length) {
        this.x += length;
    }
    buf(size) {
        const end = this.x + size;
        const bin = this.uint8.subarray(this.x, end);
        this.x = end;
        return bin;
    }
    u8() {
        return this.uint8[this.x++];
    }
    i8() {
        return this.view.getInt8(this.x++);
    }
    u16() {
        let x = this.x;
        const num = (this.uint8[x++] << 8) + this.uint8[x++];
        this.x = x;
        return num;
    }
    i16() {
        const num = this.view.getInt16(this.x);
        this.x += 2;
        return num;
    }
    u32() {
        const num = this.view.getUint32(this.x);
        this.x += 4;
        return num;
    }
    i32() {
        const num = this.view.getInt32(this.x);
        this.x += 4;
        return num;
    }
    u64() {
        const num = this.view.getBigUint64(this.x);
        this.x += 8;
        return num;
    }
    i64() {
        const num = this.view.getBigInt64(this.x);
        this.x += 8;
        return num;
    }
    f32() {
        const pos = this.x;
        this.x += 4;
        return this.view.getFloat32(pos);
    }
    f64() {
        const pos = this.x;
        this.x += 8;
        return this.view.getFloat64(pos);
    }
    utf8(size) {
        const start = this.x;
        this.x += size;
        return (0, decodeUtf8_1.decodeUtf8)(this.uint8, start, size);
    }
    ascii(length) {
        const uint8 = this.uint8;
        let str = '';
        const end = this.x + length;
        for (let i = this.x; i < end; i++)
            str += String.fromCharCode(uint8[i]);
        this.x = end;
        return str;
    }
}
exports.Reader = Reader;
//# sourceMappingURL=Reader.js.map