如何使用DefineMethodSpec来定义IL中调用的泛型方法实例 [英] how to use DefineMethodSpec to define a generic method instance for called in IL

问题描述

我需要使用通用方法。更清楚的是，当jit compile start时，我想写IL来调用检测的泛型方法。但现在我不知道如何定义可以在IL中调用的泛型方法。我知道需要使用  DefineMethodSpec
来定义methodspec。但如何使用  DefineMethodSpec？如何设置参数  pvSigBlob for
DefineMethodSpec？

解决方案

首先，使用
IMetaDataEmit :: DefineMethod 方法（签名的格式在ECMA-335 Partition II Section 23.2.1中定义）。

接下来，使用DefineMethodSpec创建一个元数据标记，它将您刚定义的方法与您想要的泛型类型参数组合在一起（签名的格式在ECMA-335 Partition II Section 23.2.15中定义） ）。

传入DefineMethod的RVA是通过
IMethodMalloc.Alloc ，格式在ECMA-335 Partition II Section 25.4.2和25.4.3中定义。

Hi,

i need to instrument generic method. Be more clearly i want to write IL to call the instrumented generic method when jit compile start. but now i don't know how to define a generic method that can be called in the IL. i know it need to use DefineMethodSpec to define the methodspec. but how to use DefineMethodSpec? how to setup the parameter pvSigBlob for DefineMethodSpec?

解决方案

First, create the generic method definition using IMetaDataEmit::DefineMethod Method (the format of the signature is defined in ECMA-335 Partition II Section 23.2.1).

Next, use DefineMethodSpec to create a metadata token that combines the method you just defined with the generic type arguments you want (the format of the signature is defined in ECMA-335 Partition II Section 23.2.15).

The RVA passed into DefineMethod is allocated via IMethodMalloc.Alloc and the format is defined in ECMA-335 Partition II Sections 25.4.2 and 25.4.3.

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