64 lines
3.3 KiB
JavaScript
64 lines
3.3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.double = double;
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const ArrayInt64_1 = require("./_internals/helpers/ArrayInt64");
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const ArrayInt64Arbitrary_1 = require("./_internals/ArrayInt64Arbitrary");
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const DoubleHelpers_1 = require("./_internals/helpers/DoubleHelpers");
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const DoubleOnlyHelpers_1 = require("./_internals/helpers/DoubleOnlyHelpers");
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const safeNumberIsInteger = Number.isInteger;
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const safeNumberIsNaN = Number.isNaN;
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const safeNegativeInfinity = Number.NEGATIVE_INFINITY;
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const safePositiveInfinity = Number.POSITIVE_INFINITY;
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const safeMaxValue = Number.MAX_VALUE;
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const safeNaN = Number.NaN;
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function safeDoubleToIndex(d, constraintsLabel) {
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if (safeNumberIsNaN(d)) {
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throw new Error('fc.double constraints.' + constraintsLabel + ' must be a 64-bit float');
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}
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return (0, DoubleHelpers_1.doubleToIndex)(d);
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}
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function unmapperDoubleToIndex(value) {
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if (typeof value !== 'number')
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throw new Error('Unsupported type');
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return (0, DoubleHelpers_1.doubleToIndex)(value);
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}
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function numberIsNotInteger(value) {
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return !safeNumberIsInteger(value);
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}
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function anyDouble(constraints) {
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const { noDefaultInfinity = false, noNaN = false, minExcluded = false, maxExcluded = false, min = noDefaultInfinity ? -safeMaxValue : safeNegativeInfinity, max = noDefaultInfinity ? safeMaxValue : safePositiveInfinity, } = constraints;
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const minIndexRaw = safeDoubleToIndex(min, 'min');
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const minIndex = minExcluded ? (0, ArrayInt64_1.add64)(minIndexRaw, ArrayInt64_1.Unit64) : minIndexRaw;
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const maxIndexRaw = safeDoubleToIndex(max, 'max');
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const maxIndex = maxExcluded ? (0, ArrayInt64_1.substract64)(maxIndexRaw, ArrayInt64_1.Unit64) : maxIndexRaw;
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if ((0, ArrayInt64_1.isStrictlySmaller64)(maxIndex, minIndex)) {
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throw new Error('fc.double constraints.min must be smaller or equal to constraints.max');
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}
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if (noNaN) {
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return (0, ArrayInt64Arbitrary_1.arrayInt64)(minIndex, maxIndex).map(DoubleHelpers_1.indexToDouble, unmapperDoubleToIndex);
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}
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const positiveMaxIdx = (0, ArrayInt64_1.isStrictlyPositive64)(maxIndex);
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const minIndexWithNaN = positiveMaxIdx ? minIndex : (0, ArrayInt64_1.substract64)(minIndex, ArrayInt64_1.Unit64);
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const maxIndexWithNaN = positiveMaxIdx ? (0, ArrayInt64_1.add64)(maxIndex, ArrayInt64_1.Unit64) : maxIndex;
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return (0, ArrayInt64Arbitrary_1.arrayInt64)(minIndexWithNaN, maxIndexWithNaN).map((index) => {
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if ((0, ArrayInt64_1.isStrictlySmaller64)(maxIndex, index) || (0, ArrayInt64_1.isStrictlySmaller64)(index, minIndex))
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return safeNaN;
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else
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return (0, DoubleHelpers_1.indexToDouble)(index);
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}, (value) => {
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if (typeof value !== 'number')
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throw new Error('Unsupported type');
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if (safeNumberIsNaN(value))
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return !(0, ArrayInt64_1.isEqual64)(maxIndex, maxIndexWithNaN) ? maxIndexWithNaN : minIndexWithNaN;
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return (0, DoubleHelpers_1.doubleToIndex)(value);
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});
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}
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function double(constraints = {}) {
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if (!constraints.noInteger) {
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return anyDouble(constraints);
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}
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return anyDouble((0, DoubleOnlyHelpers_1.refineConstraintsForDoubleOnly)(constraints))
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.map(DoubleOnlyHelpers_1.doubleOnlyMapper, DoubleOnlyHelpers_1.doubleOnlyUnmapper)
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.filter(numberIsNotInteger);
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}
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