0d073fa89e
- Add GETTING_STARTED.md with quick start guide and development modes - Add INSTALL.sh automated installation script - Add INSTALLATION_CHECKLIST.md, INSTALLATION_SUCCESS.md, and INSTALLATION_SUMMARY.md - Add QUICK_REFERENCE.md for common commands - Add SETUP_GUIDE.md with detailed setup instructions - Update README.md with improved project overview - Add did-wallet app dependencies and node_modules
55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
import {
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Token,
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Type
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} from './token.js';
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import * as uint from './0uint.js';
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import { decodeErrPrefix } from './common.js';
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export function decodeNegint8(data, pos, _minor, options) {
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return new Token(Type.negint, -1 - uint.readUint8(data, pos + 1, options), 2);
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}
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export function decodeNegint16(data, pos, _minor, options) {
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return new Token(Type.negint, -1 - uint.readUint16(data, pos + 1, options), 3);
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}
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export function decodeNegint32(data, pos, _minor, options) {
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return new Token(Type.negint, -1 - uint.readUint32(data, pos + 1, options), 5);
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}
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const neg1b = BigInt(-1);
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const pos1b = BigInt(1);
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export function decodeNegint64(data, pos, _minor, options) {
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const int = uint.readUint64(data, pos + 1, options);
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if (typeof int !== 'bigint') {
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const value = -1 - int;
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if (value >= Number.MIN_SAFE_INTEGER) {
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return new Token(Type.negint, value, 9);
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}
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}
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if (options.allowBigInt !== true) {
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throw new Error(`${ decodeErrPrefix } integers outside of the safe integer range are not supported`);
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}
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return new Token(Type.negint, neg1b - BigInt(int), 9);
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}
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export function encodeNegint(buf, token) {
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const negint = token.value;
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const unsigned = typeof negint === 'bigint' ? negint * neg1b - pos1b : negint * -1 - 1;
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uint.encodeUintValue(buf, token.type.majorEncoded, unsigned);
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}
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encodeNegint.encodedSize = function encodedSize(token) {
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const negint = token.value;
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const unsigned = typeof negint === 'bigint' ? negint * neg1b - pos1b : negint * -1 - 1;
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if (unsigned < uint.uintBoundaries[0]) {
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return 1;
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}
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if (unsigned < uint.uintBoundaries[1]) {
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return 2;
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}
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if (unsigned < uint.uintBoundaries[2]) {
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return 3;
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}
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if (unsigned < uint.uintBoundaries[3]) {
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return 5;
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}
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return 9;
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};
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encodeNegint.compareTokens = function compareTokens(tok1, tok2) {
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return tok1.value < tok2.value ? 1 : tok1.value > tok2.value ? -1 : 0;
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}; |