/*
Copyright (c) 2025 WuJingrun（吴京润）

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 f_mvc

/**
 * 服务器处理http访问时，CurrentHttpContext.instance返回当前HttpContext
 */
public struct CurrentHttpContext {
    private static let context = ThreadLocal<HttpContext>()
    private init(){}
    static func set(ctx: HttpContext){
        context.set(ctx)
    }
    static func clear(): Unit {
        context.set(None<HttpContext>)
    }
    public static prop instance: HttpContext {
        get(){
            context.get().getOrThrow()
        }
    }
}