throw_expressions.js
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throw_expressions.js
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	import { test, testThrows, summary } from './helpers.js';

	console.log('Throw Expression Tests\n');

	const must = value => value \|\| throw new Error('missing');
	test('throw expression in arrow skip', must('ok'), 'ok');
	testThrows('throw expression in arrow throws', () => must(''));

	function fallback(value) {
	return value ?? throw new Error('nullish');
	}

	test('throw expression in nullish skip', fallback('value'), 'value');
	testThrows('throw expression in nullish throws', () => fallback(null));

	function choose(value) {
	return value ? value : throw new Error('bad');
	}

	test('throw expression in conditional skip', choose(7), 7);
	testThrows('throw expression in conditional throws', () => choose(0));

	function defaultParam(value = throw new Error('default')) {
	return value;
	}

	test('throw expression in parameter initializer skip', defaultParam(3), 3);
	testThrows('throw expression in parameter initializer throws', () => defaultParam());

	let caught;
	try {
	const value = false \|\| throw 'sentinel';
	void value;
	} catch (e) {
	caught = e;
	}
	test('throw expression throws raw value', caught, 'sentinel');

	summary();