32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
import { BigInt } from '../utils/globals.js';
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import { BigIntArbitrary } from './_internals/BigIntArbitrary.js';
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function buildCompleteBigIntConstraints(constraints) {
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const DefaultPow = 256;
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const DefaultMin = BigInt(-1) << BigInt(DefaultPow - 1);
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const DefaultMax = (BigInt(1) << BigInt(DefaultPow - 1)) - BigInt(1);
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const min = constraints.min;
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const max = constraints.max;
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return {
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min: min !== undefined ? min : DefaultMin - (max !== undefined && max < BigInt(0) ? max * max : BigInt(0)),
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max: max !== undefined ? max : DefaultMax + (min !== undefined && min > BigInt(0) ? min * min : BigInt(0)),
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};
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}
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function extractBigIntConstraints(args) {
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if (args[0] === undefined) {
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return {};
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}
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if (args[1] === undefined) {
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const constraints = args[0];
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return constraints;
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}
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return { min: args[0], max: args[1] };
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}
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function bigInt(...args) {
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const constraints = buildCompleteBigIntConstraints(extractBigIntConstraints(args));
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if (constraints.min > constraints.max) {
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throw new Error('fc.bigInt expects max to be greater than or equal to min');
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}
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return new BigIntArbitrary(constraints.min, constraints.max);
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}
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export { bigInt };
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