These instructions perform dynamic lookup of class and generic methods.

The class_method and super_method instructions must reference Swift native methods and always use vtable dispatch.

The objc_method and objc_super_method instructions must reference Objective-C methods (indicated by the foreignmarker on a method reference, as in #NSObject.description!1.foreign).

witness_method

https://github.com/apple/swift/blob/master/docs/SIL.rst#id129

swift -Dynamic Dispatch的更多相关文章

  1. Increasing Performance by Reducing Dynamic Dispatch

    https://developer.apple.com/swift/blog/?id=39 Increasing Performance by Reducing Dynamic Dispatch Li ...

  2. Dynamic dispatch

    Dynamic dispatch动态调度.动态分发 In computer science, dynamic dispatch is the process of selecting which im ...

  3. this inspection detects names that should resolved but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Top-level and class-level items are sup

    输入第一行代码:import logging;logging.basicConfig(level==logging.INFO) 提示:this inspection detects names tha ...

  4. 【PyCharm编辑器】之无法导入引用手动新建的包或类，报：This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases.

    一.现象描述 如下图所示,手动新建个类包calculator.py,想在test.py文件引用它,发现一直报红线,引用失败 Unresolved reference 'calculator' less ...

  5. Dynamic dispatch mechanisms

    Normally, in a typed language, the dispatch mechanism will be performed based on the type of the arg ...

  6. Swift dynamic关键字

    使用dynamic关键字标记属性,使属性启用Objc的动态转发功能: dynamic只用于类,不能用于结构体和枚举,因为它们没有继承机制,而Objc的动态转发就是根据继承关系来实现转发. 参考资料: ...

  7. Use Swift Dynamic Framework （如何科学地引用第三方 Swift 库)

    转自:http://andelf.github.io/blog/2014/07/07/use-swift-dynamic-library/ CocoaPods 由于完全使用静态链接解决方法,过度依赖 ...

  8. Only Link: What's the difference between dynamic dispatch and dynamic binding

    http://stackoverflow.com/questions/20187587/what-is-the-difference-between-dynamic-dispatch-and-late ...

  9. 【Python】This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck

    情况一:导包import时发生错误,请参考这两位 https://blog.csdn.net/zhangyu4863/article/details/80212068https://www.cnblo ...

随机推荐

  1. (22) java web的struts2框架的使用-struts配置文件

    1,配置文件的引用 struts中配置文件可以有多个,每个模块的包里面都可以单独设立一个struts配置文件. 主的配置文件,放在“src”文件夹下,可以引入其他配置文件,引入方式: <!-- ...

  2. Lightoj 1012 - Guilty Prince

    bfs遍历一遍就行了. /* *********************************************** Author :guanjun Created Time :2016/6/ ...

  3. Resolve the error: an error occurred during local report processing

    Issue: an error occurred during local report processing.the definition of the report'Main Report'is ...

  4. I.MX6 AW-NB177NF wifi HAL 调试修改

    /************************************************************************* * I.MX6 AW-NB177NF wifi H ...

  5. JSOI2010 联通数

    传送门 这道题的题目描述看起来很奇怪.实际上的意思是要求在这个有向图之内能到达的点对有多少,解释一下题里的图片就是(1,1),(1,2),(1,3),(1,4),(1,5),(2,2),(2,3),( ...

  6. Python3中 对local和nonlocal 关键字的改善认识(新手向)

    nonlocal关键字用来在函数或其他作用域中使用外层(非全局)变量. nonlocal用于声明,修改嵌套作用域(enclosing 作用域,外层非全局作用域)中的变量,如下实例: #!/usr/bi ...

  7. bzoj4811 [Ynoi2017]由乃的OJ 树链剖分+位运算

    题目:https://www.lydsy.com/JudgeOnline/problem.php?id=4811 因为位运算的结果有可合并性,所以可以树链剖分,线段树维护: 细节很多,特别要注意从左往 ...

  8. UVa 11440 Help Tomisu (数论欧拉函数)

    题意:给一个 n,m,统计 2 和 n!之间有多少个整数x,使得x的所有素因子都大于M. 析:首先我们能知道的是 所有素数因子都大于 m 造价于 和m!互质,然后能得到 gcd(k mod m!, m ...

  9. Linux 系统管理命令 - iostat - I/O 信息统计

    命令详解 重要星级: ★★★★☆ 功能说明: iostat 是 I/O statistics ( 输入/输出统计 ) 的缩写,其主要功能是对系统的磁盘 I/O 操作进行监视.它的输出主要是显示磁盘读写 ...

  10. Linux 系统管理命令 - mpstat - CPU信息统计

    命令详解 重要星级: ★★★★☆ 功能说明: mpstat 是 Multiprocessor Statistics 的缩写,是一种实时系统监控工具.mpstat 命令会输出 CPU 的一些统计信息,这 ...