/**
* Returns the given {@link LuaValue} as the appropriate type of {@link LuaObjectValue}, directed
* by the provided {@link LuaObjectMeta} type.
*
* <p>If the provided value is not of the appropriate type, a {@link LuaError} is raised.
*
* @param value the LuaValue to check
* @param clazz the target LuaObjectMeta type to check with
* @return the appropriately typed LuaValue as a LuaObjectValue
*/
public static <T> LuaObjectValue<T> checkType(
LuaValue value, Class<? extends LuaObjectMeta> clazz) {
LuaObjectMeta meta = Lua.getMeta(clazz);
if (meta == null) {
throw new IllegalArgumentException(
"Meta class " + clazz.getSimpleName() + " isn't registered");
}
if (value instanceof LuaObjectValue) {
LuaObjectValue<?> objectValue = ((LuaObjectValue<?>) value);
if (meta.getTargetObjectClass().isInstance(objectValue.getObject())) {
return (LuaObjectValue<T>) objectValue;
}
}
throw new LuaError(String.format(INVALID_TYPE_MSG, meta.getTypeName(), value.typename()));
}
/**
* Get the String name of the type of this value.
*
* @return name from type name list LuaValue.TYPE_NAMES corresponding to the type of this value:
* "nil", "boolean", "number", "string", "table", "function", "userdata", "thread"
*/
public String typename() {
return val.typename();
}