@formatjs/ecma402-abstract/NumberFormat/SetNumberFormatUnitOptions.js

A collection of implementation for ECMAScript abstract operations

import { GetOption } from "../GetOption.js";
import { IsWellFormedCurrencyCode } from "../IsWellFormedCurrencyCode.js";
import { IsWellFormedUnitIdentifier } from "../IsWellFormedUnitIdentifier.js";
import "../types/number.js";
import { invariant } from "../utils.js";
/**
* https://tc39.es/ecma402/#sec-setnumberformatunitoptions
*/
export function SetNumberFormatUnitOptions(internalSlots, options = Object.create(null)) {
	// 1. Let style be ? GetOption(options, "style", "string", « "decimal", "percent", "currency", "unit" », "decimal").
	const style = GetOption(options, "style", "string", [
		"decimal",
		"percent",
		"currency",
		"unit"
	], "decimal");
	// 2. Set internalSlots.[[Style]] to style.
	internalSlots.style = style;
	// 3. Let currency be ? GetOption(options, "currency", "string", undefined, undefined).
	const currency = GetOption(options, "currency", "string", undefined, undefined);
	// 4. If currency is not undefined, then
	// a. If the result of IsWellFormedCurrencyCode(currency) is false, throw a RangeError exception.
	invariant(currency === undefined || IsWellFormedCurrencyCode(currency), "Malformed currency code", RangeError);
	// 5. If style is "currency" and currency is undefined, throw a TypeError exception.
	invariant(style !== "currency" || currency !== undefined, "currency cannot be undefined", TypeError);
	// 6. Let currencyDisplay be ? GetOption(options, "currencyDisplay", "string", « "code", "symbol", "narrowSymbol", "name" », "symbol").
	const currencyDisplay = GetOption(options, "currencyDisplay", "string", [
		"code",
		"symbol",
		"narrowSymbol",
		"name"
	], "symbol");
	// 7. Let currencySign be ? GetOption(options, "currencySign", "string", « "standard", "accounting" », "standard").
	const currencySign = GetOption(options, "currencySign", "string", ["standard", "accounting"], "standard");
	// 8. Let unit be ? GetOption(options, "unit", "string", undefined, undefined).
	const unit = GetOption(options, "unit", "string", undefined, undefined);
	// 9. If unit is not undefined, then
	// a. If the result of IsWellFormedUnitIdentifier(unit) is false, throw a RangeError exception.
	invariant(unit === undefined || IsWellFormedUnitIdentifier(unit), "Invalid unit argument for Intl.NumberFormat()", RangeError);
	// 10. If style is "unit" and unit is undefined, throw a TypeError exception.
	invariant(style !== "unit" || unit !== undefined, "unit cannot be undefined", TypeError);
	// 11. Let unitDisplay be ? GetOption(options, "unitDisplay", "string", « "short", "narrow", "long" », "short").
	const unitDisplay = GetOption(options, "unitDisplay", "string", [
		"short",
		"narrow",
		"long"
	], "short");
	// 12. If style is "currency", then
	if (style === "currency") {
		// a. Set internalSlots.[[Currency]] to the result of converting currency to upper case as specified in 6.1.
		internalSlots.currency = currency.toUpperCase();
		// b. Set internalSlots.[[CurrencyDisplay]] to currencyDisplay.
		internalSlots.currencyDisplay = currencyDisplay;
		// c. Set internalSlots.[[CurrencySign]] to currencySign.
		internalSlots.currencySign = currencySign;
	}
	// 13. If style is "unit", then
	if (style === "unit") {
		// a. Set internalSlots.[[Unit]] to unit.
		internalSlots.unit = unit;
		// b. Set internalSlots.[[UnitDisplay]] to unitDisplay.
		internalSlots.unitDisplay = unitDisplay;
	}
}