electr0lysis/codec/VintEncoder.js

Simple framework for data serialization and interchange.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class VintEncoder {
    calculateSize(value, type, context) {
        for (let size = 1; size < 5; size++) {
            if ((value & -1 << size * 7) == 0) {
                return size;
            }
        }
        return 5;
    }
    encode(value, type, view, offset, context) {
        let shifted = value;
        let position = offset;
        while (shifted >= 0x80) {
            const byte = shifted | 0x80;
            context.encode(byte, { name: "Uint8" }, view, position);
            position += 1;
            shifted >>= 7;
        }
        context.encode(shifted, { name: "Uint8" }, view, position);
    }
}
exports.default = VintEncoder;
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