c# - CompilationRelaxations.NoStringInterning 实际上是如何工作的？

Question

我在演示 NoStringInterning 时遇到问题

[assembly: System.Runtime.CompilerServices.CompilationRelaxations(System.Runtime.CompilerServices.CompilationRelaxations.NoStringInterning)]

    class Program
    {
        static void Main(string[] args)
        {
            String s1 = "Friday";
            String s2 = "Friday";
            String s3 = "Friday";
            String s4 = "Friday";
            String s5 = "Friday";
            String s6 = "Friday";
            String s7 = "Friday";
            String s8 = "Friday";
            String s9 = "Friday";
            // etc...
            Console.WriteLine(Object.ReferenceEquals(s1, s2));
            Console.WriteLine(Object.ReferenceEquals(s1, s3));
            Console.WriteLine(Object.ReferenceEquals(s1, s4));
            Console.WriteLine(Object.ReferenceEquals(s1, s5));
            Console.WriteLine(Object.ReferenceEquals(s1, s6));
            Console.WriteLine(Object.ReferenceEquals(s1, s7));
            Console.WriteLine(Object.ReferenceEquals(s1, s8));
            Console.WriteLine(Object.ReferenceEquals(s1, s9));
            // etc...

我已经尝试使用 .NET CLR 2、3、4.. 作为输出，我得到的只是一堆 True。我期待一堆 False!

Answer 1

documentation声明该属性:

Marks an assembly as not requiring string-literal interning.

换句话说，它不会阻止编译器进行字符串驻留，只是提供一个不需要它的提示。这方面的文档有点稀疏，但这似乎也是 this MSDN forum post 中的结论。 .