Function _decode

lib.commonjs/utils/rlp-decode.js:35–72

(data, offset)

}
// returns { consumed: number, result: Object }
function _decode(data, offset) {
    (0, errors_js_1.assert)(data.length !== 0, "data too short", "BUFFER_OVERRUN", {
        buffer: data, length: 0, offset: 1
    });
    const checkOffset = (offset) => {
        (0, errors_js_1.assert)(offset <= data.length, "data short segment too short", "BUFFER_OVERRUN", {
            buffer: data, length: data.length, offset
        });
    };
    // Array with extra length prefix
    if (data[offset] >= 0xf8) {
        const lengthLength = data[offset] - 0xf7;
        checkOffset(offset + 1 + lengthLength);
        const length = unarrayifyInteger(data, offset + 1, lengthLength);
        checkOffset(offset + 1 + lengthLength + length);
        return _decodeChildren(data, offset, offset + 1 + lengthLength, lengthLength + length);
    }
    else if (data[offset] >= 0xc0) {
        const length = data[offset] - 0xc0;
        checkOffset(offset + 1 + length);
        return _decodeChildren(data, offset, offset + 1, length);
    }
    else if (data[offset] >= 0xb8) {
        const lengthLength = data[offset] - 0xb7;
        checkOffset(offset + 1 + lengthLength);
        const length = unarrayifyInteger(data, offset + 1, lengthLength);
        checkOffset(offset + 1 + lengthLength + length);
        const result = (0, data_js_1.hexlify)(data.slice(offset + 1 + lengthLength, offset + 1 + lengthLength + length));
        return { consumed: (1 + lengthLength + length), result: result };
    }
    else if (data[offset] >= 0x80) {
        const length = data[offset] - 0x80;
        checkOffset(offset + 1 + length);
        const result = (0, data_js_1.hexlify)(data.slice(offset + 1, offset + 1 + length));
        return { consumed: (1 + length), result: result };
    }
    return { consumed: 1, result: hexlifyByte(data[offset]) };
}
/**
 *  Decodes %%data%% into the structured data it represents.
 */