Function assertString

src/interpreter/util.ts:57–64

(val: Value | null | undefined)

}

export function assertString(val: Value | null | undefined): asserts val is VStr {
	if (val == null) {
		throw new AiScriptRuntimeError('Expect string, but got nothing.');
	}
	if (!isString(val)) {
		throw new AiScriptRuntimeError(`Expect string, but got ${val.type}.`);
	}
}

export function assertNumber(val: Value | null | undefined): asserts val is VNum {
	if (val == null) {