Function assertFunction

src/interpreter/util.ts:48–55

(val: Value | null | undefined)

}

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

export function assertString(val: Value | null | undefined): asserts val is VStr {
	if (val == null) {