option-t/esm/nullable/unwrap_or.js

A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

import { ERR_MSG_DEFAULT_VALUE_MUST_NOT_BE_NO_VAL_FOR_NULLABLE } from './internal/error_message.js';
import { isNotNull, expectNotNull } from './nullable.js';
/**
 *  Return _input_ as `T` if the passed _input_ is not `null`.
 *  Otherwise, return _defaultValue_.
 *
 *  * _defaultValue_ must not be `Nullable<*>`.
 *  * If the _defaultValue_ is `null`, throw `TypeError`.
 */
export function unwrapOrForNullable(input, defaultValue) {
    if (isNotNull(input)) {
        return input;
    }
    const passed = expectNotNull(defaultValue, ERR_MSG_DEFAULT_VALUE_MUST_NOT_BE_NO_VAL_FOR_NULLABLE);
    return passed;
}