knowledge/node_modules/pg-protocol/dist/buffer-reader.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BufferReader = void 0;
class BufferReader {
    constructor(offset = 0) {
        this.offset = offset;
        this.buffer = Buffer.allocUnsafe(0);
        // TODO(bmc): support non-utf8 encoding?
        this.encoding = 'utf-8';
    }
    setBuffer(offset, buffer) {
        this.offset = offset;
        this.buffer = buffer;
    }
    int16() {
        const result = this.buffer.readInt16BE(this.offset);
        this.offset += 2;
        return result;
    }
    byte() {
        const result = this.buffer[this.offset];
        this.offset++;
        return result;
    }
    int32() {
        const result = this.buffer.readInt32BE(this.offset);
        this.offset += 4;
        return result;
    }
    uint32() {
        const result = this.buffer.readUInt32BE(this.offset);
        this.offset += 4;
        return result;
    }
    string(length) {
        const result = this.buffer.toString(this.encoding, this.offset, this.offset + length);
        this.offset += length;
        return result;
    }
    cstring() {
        const start = this.offset;
        let end = start;
        // eslint-disable-next-line no-empty
        while (this.buffer[end++] !== 0) { }
        this.offset = end;
        return this.buffer.toString(this.encoding, start, end - 1);
    }
    bytes(length) {
        const result = this.buffer.slice(this.offset, this.offset + length);
        this.offset += length;
        return result;
    }
}
exports.BufferReader = BufferReader;
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