63 lines
2.3 KiB
JavaScript
63 lines
2.3 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var token = require('./token.js');
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var common = require('./common.js');
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var _0uint = require('./0uint.js');
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var byteUtils = require('./byte-utils.js');
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function toToken(data, pos, prefix, length) {
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common.assertEnoughData(data, pos, prefix + length);
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const buf = byteUtils.slice(data, pos + prefix, pos + prefix + length);
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return new token.Token(token.Type.bytes, buf, prefix + length);
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}
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function decodeBytesCompact(data, pos, minor, _options) {
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return toToken(data, pos, 1, minor);
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}
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function decodeBytes8(data, pos, _minor, options) {
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return toToken(data, pos, 2, _0uint.readUint8(data, pos + 1, options));
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}
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function decodeBytes16(data, pos, _minor, options) {
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return toToken(data, pos, 3, _0uint.readUint16(data, pos + 1, options));
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}
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function decodeBytes32(data, pos, _minor, options) {
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return toToken(data, pos, 5, _0uint.readUint32(data, pos + 1, options));
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}
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function decodeBytes64(data, pos, _minor, options) {
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const l = _0uint.readUint64(data, pos + 1, options);
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if (typeof l === 'bigint') {
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throw new Error(`${ common.decodeErrPrefix } 64-bit integer bytes lengths not supported`);
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}
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return toToken(data, pos, 9, l);
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}
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function tokenBytes(token$1) {
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if (token$1.encodedBytes === undefined) {
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token$1.encodedBytes = token$1.type === token.Type.string ? byteUtils.fromString(token$1.value) : token$1.value;
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}
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return token$1.encodedBytes;
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}
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function encodeBytes(buf, token) {
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const bytes = tokenBytes(token);
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_0uint.encodeUintValue(buf, token.type.majorEncoded, bytes.length);
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buf.push(bytes);
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}
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encodeBytes.encodedSize = function encodedSize(token) {
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const bytes = tokenBytes(token);
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return _0uint.encodeUintValue.encodedSize(bytes.length) + bytes.length;
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};
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encodeBytes.compareTokens = function compareTokens(tok1, tok2) {
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return compareBytes(tokenBytes(tok1), tokenBytes(tok2));
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};
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function compareBytes(b1, b2) {
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return b1.length < b2.length ? -1 : b1.length > b2.length ? 1 : byteUtils.compare(b1, b2);
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}
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exports.compareBytes = compareBytes;
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exports.decodeBytes16 = decodeBytes16;
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exports.decodeBytes32 = decodeBytes32;
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exports.decodeBytes64 = decodeBytes64;
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exports.decodeBytes8 = decodeBytes8;
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exports.decodeBytesCompact = decodeBytesCompact;
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exports.encodeBytes = encodeBytes;
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