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我正在尝试使用作为de4dot项目一部分的dnlib库来加载程序集并获取包含在所有方法的“主体”中的IL指令。

我用这个VB.NET源代码编译了一个程序集:

Public Class Main

    Public Sub testmethod(ByVal testparameter As String)
        MsgBox(testparameter)
    End Sub

    Public Class Test2

        Public Function testfunction(ByVal testparameter As String) As String
            Return testparameter
        End Function

    End Class

End Class

我知道编译器修改了很多东西,但是我认为方法名称(在这种情况下)不会被修改,如果我错了,请纠正我。

然后我试图用这段代码检索这些方法:

Imports dnlib.DotNet
Imports dnlib.DotNet.Emit

Private Sub Test_Handler() Handles MyBase.Shown

    Dim asmResolver As New AssemblyResolver()
    Dim modCtx As New ModuleContext(asmResolver)

    ' All resolved assemblies will also get this same modCtx
    asmResolver.DefaultModuleContext = modCtx

    ' Enable the TypeDef cache for all assemblies that are loaded
    ' by the assembly resolver. Only enable it if all auto-loaded
    ' assemblies are read-only.
    asmResolver.EnableTypeDefCache = True

    Dim Assembly As ModuleDefMD = ModuleDefMD.Load("C:\WindowsApplication.exe")
    Assembly.Context = modCtx
    ' Use the previously created (and shared) context
    Assembly.Context.AssemblyResolver.AddToCache(Assembly)

    Dim Members As IEnumerable(Of MemberRef) = Assembly.GetMemberRefs

    For Each m As MemberRef In Members

        If m.IsMethodRef Then

            Dim Method As MethodDef = m.ResolveMethod

            If Method.HasBody Then

                Dim sb As New System.Text.StringBuilder
                With sb
                    .AppendLine(String.Format("Method Name: {0}", Method.FullName))
                    .AppendLine()
                    .AppendLine(String.Format("Method Signature: {0}", Method.Signature.ToString))
                    .AppendLine()
                    .AppendLine(String.Format("Method Instructions: {0}", Environment.NewLine &
                                              String.Join(Environment.NewLine, Method.Body.Instructions)))
                End With
                MessageBox.Show(sb.ToString)

            End If

        End If

    Next

End Sub

问题是我看到的这个库的唯一文档是 XML 文档文件和 dnlib 站点上的一些非常基本的示例,它们帮助我编写了上面的代码,但我不确定如何解决/检索这些方法因为我没有正确地执行它,上面的代码没有解析我编译的任何方法(testmethodtestfunction),而是向我展示了很多构造函数(.ctor)和其他方法。

我想做的只是对我编译的源中包含的所有方法(私有、公共等)进行迭代,而不管项目有多少类,也不管哪个类包含特定方法, 得到它的指示。

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1 回答 1

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看来您只是在大会中四处闲逛,所以您得到的只是AssemblyInfo.vb. 您可能想要做的是迭代程序集中的类型,然后深入了解为您要查找的对象定义的成员或属性。

这段代码应该让你指向正确的方向:

Dim modDef As ModuleDefMD = ModuleDefMD.Load("C:\Temp\ConsoleApplication1.exe")

For Each t As TypeDef In modDef.GetTypes
    'print the Type name
    Console.WriteLine(t.Name)

    ' stupid way to match a Type, but will work for demo purposes
    If t.FullName.StartsWith("ConsoleApplication1.Module1") Then

        For Each meth As MethodDef In t.Methods
            ' print the method name
            Console.WriteLine("     Method: {0}", meth.Name)
        Next

    End If
Next

输出如下所示,请注意您的方法已列出。

<Module>
MyApplication
MyComputer
MyProject
MyWebServices
ThreadSafeObjectProvider`1
InternalXmlHelper
RemoveNamespaceAttributesClosure
Module1
     Method: Main
     Method: testmethod
Test2
     Method: .ctor
     Method: testfunction
Resources
MySettings
MySettingsProperty
于 2014-08-02T13:56:02.667 回答