typia/lib/internal/_randomNumber.mjs

Superfast runtime validators with only one line

import { _randomMultiple } from "./_randomMultiple.mjs";
//#region src/internal/_randomNumber.ts
const _randomNumber = (schema) => {
	const lower = getLowerBoundary(schema);
	const upper = getUpperBoundary(schema);
	const minimum = lower?.value ?? (upper === null ? 0 : upper.value - 100);
	const maximum = upper?.value ?? (lower === null ? 100 : lower.value + 100);
	if (minimum > maximum) throw new Error("Minimum value is greater than maximum value.");
	return schema.multipleOf === void 0 ? scalar({
		minimum,
		maximum,
		exclusiveMinimum: lower?.exclusive ?? false,
		exclusiveMaximum: upper?.exclusive ?? false
	}) : _randomMultiple({
		minimum,
		maximum,
		multipleOf: schema.multipleOf,
		exclusiveMinimum: lower?.exclusive ?? false,
		exclusiveMaximum: upper?.exclusive ?? false,
		integer: false
	});
};
const scalar = (props) => {
	if (props.minimum === props.maximum && (props.exclusiveMinimum || props.exclusiveMaximum)) throw new Error("Exclusive numeric range is empty.");
	const value = Math.random() * (props.maximum - props.minimum) + props.minimum;
	if (props.exclusiveMinimum && value === props.minimum || props.exclusiveMaximum && value === props.maximum) {
		const middle = props.minimum + (props.maximum - props.minimum) / 2;
		if (middle <= props.minimum || middle >= props.maximum) throw new Error("Exclusive numeric range has no representable value.");
		return middle;
	}
	return value;
};
const getLowerBoundary = (schema) => selectBoundary(schema.minimum === void 0 ? null : {
	value: schema.minimum,
	exclusive: false
}, schema.exclusiveMinimum === void 0 ? null : {
	value: schema.exclusiveMinimum,
	exclusive: true
}, Math.max);
const getUpperBoundary = (schema) => selectBoundary(schema.maximum === void 0 ? null : {
	value: schema.maximum,
	exclusive: false
}, schema.exclusiveMaximum === void 0 ? null : {
	value: schema.exclusiveMaximum,
	exclusive: true
}, Math.min);
const selectBoundary = (x, y, compare) => {
	if (x === null) return y;
	if (y === null) return x;
	if (x.value === y.value) return {
		value: x.value,
		exclusive: x.exclusive || y.exclusive
	};
	return compare(x.value, y.value) === x.value ? x : y;
};
//#endregion
export { _randomNumber };

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