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Core for Android-Vast-Extension

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/*
 * Copyright 2021-2024 VastGui
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.ave.vastgui.core

// Author: Vast Gui
// Email: [email protected]
// Date: 2024/10/28

/**
 * Calls the specified function [block] with not null receiver and returns
 * null.
 *
 * ```kotlin
 * resource = resource.letThenNull {
 *     ... // Do something with non-null resource
 * }
 * ```
 *
 * The code above is equivalent to the following example:
 * ```kotlin
 * if (null != resource) {
 *     ... // Do something with non-null resource
 *     resource = null
 * }
 * ```
 *
 * @since 0.1.2
 */
inline fun  T?.letThenNull(crossinline block: (T) -> R): Nothing? {
    this?.let { block(it) }
    return null
}