Module.ResolveMethod Метод

Исходный код:

Module.cs

Исходный код:

Module.cs

Исходный код:

Module.cs

public:
 virtual System::Reflection::MethodBase ^ ResolveMethod(int metadataToken, cli::array <Type ^> ^ genericTypeArguments, cli::array <Type ^> ^ genericMethodArguments);

public:
 System::Reflection::MethodBase ^ ResolveMethod(int metadataToken, cli::array <Type ^> ^ genericTypeArguments, cli::array <Type ^> ^ genericMethodArguments);

public virtual System.Reflection.MethodBase? ResolveMethod (int metadataToken, Type[]? genericTypeArguments, Type[]? genericMethodArguments);

public virtual System.Reflection.MethodBase ResolveMethod (int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments);

public System.Reflection.MethodBase ResolveMethod (int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments);

abstract member ResolveMethod : int * Type[] * Type[] -> System.Reflection.MethodBase
override this.ResolveMethod : int * Type[] * Type[] -> System.Reflection.MethodBase

member this.ResolveMethod : int * Type[] * Type[] -> System.Reflection.MethodBase

Public Overridable Function ResolveMethod (metadataToken As Integer, genericTypeArguments As Type(), genericMethodArguments As Type()) As MethodBase

Public Function ResolveMethod (metadataToken As Integer, genericTypeArguments As Type(), genericMethodArguments As Type()) As MethodBase

Параметры

Возвращаемое значение

Объект MethodBase, представляющий метод, определенный заданным токеном метаданных.

Исключения

Примеры

В следующем примере показано, как использовать две перегрузки ResolveMethod метода для разрешения маркеров метаданных из вызывающих сайтов в универсальных и неуниверсических контекстах.

В примере кода определяются два универсальных типа, G1<Tg1> и G2<Tg2>, каждый из которых имеет универсальный метод. G1<Tg1> также имеет неуниверсивный метод, который использует параметр Tg1 type для своего параметра. Универсальный метод GM2<Tgm2> в типе G2<Tg2> содержит несколько вызовов методов:

• Случай 1. Вызывается универсальный метод GM1<Tgm1> с использованием параметров G2<Tg2> типа и GM2<Tgm2> в качестве аргументов типа. Другими словами, типы параметров вызываемого метода будут зависеть от типов, используемых для создания закрытого универсального типа из определения типа для G2<Tg2>.

• Случай 2. Вызывается неуниверсивный метод M1 . Параметр этого метода использует параметр type определяющего типа , G1<Tg1>который в данном случае заменяется параметром типа включающего типа , G2<Tg2>.

• Случай 3. Вызывается универсальный метод GM1<Tgm1> , указывающий Int32 и Object для аргументов типа универсального типа и универсального метода соответственно. Этот вызов метода не зависит от параметров типа включающего типа или метода.

• Случай 4. Вызывается неуниверсивный Example метод M1 класса . Этот вызов метода не зависит от параметров типа включающего типа или метода.

Кроме того, в примере определяется неуниверсивный Example класс. Этот класс содержит метод M , который выполняет вызов универсального метода.

• Случай 5. Вызывается универсальный метод GM1<Tgm1> , указывающий Int32 и Object для аргументов типа универсального типа и универсального метода соответственно. Контекст для этого метода не имеет включающего универсального типа или универсального метода.

Для каждого случая в примере сначала создается MethodInfo объект , представляющий вызываемый метод, а затем разрешается маркер с помощью ResolveMethod(Int32, Type[], Type[]) перегрузки метода с помощью Type.GetGenericArguments методов и MethodInfo.GetGenericArguments для получения значений genericTypeArguments параметров и genericMethodArguments . Этот метод работает во всех случаях, так как методы возвращают Type.EmptyTypes для неуниверсических контекстов. В примере сравнивается разрешенный MethodInfo объект со сконструированным MethodInfo.

Затем в примере предпринимается попытка использовать перегрузку ResolveMethod(Int32) метода для разрешения маркера. Это работает в случаях 3, 4 и 5, так как вызовы метода не зависят от универсального контекста. В случаях 1 и 2 возникает исключение, так как недостаточно сведений для разрешения маркера.

Значения маркера метаданных жестко закодируются в виде перечисления. Если вы измените этот пример кода, значения маркеров, скорее всего, изменятся. Чтобы определить новые значения маркера, скомпилируйте код и используйте Ildasm.exe с параметром /TOKENS для проверки сборки. Маркеры можно найти в пунктах вызова. Вставьте новые значения в перечисление и перекомпилируйте пример.

using System;
using System.Reflection;

namespace ResolveMethodExample
{
    // Metadata tokens for the MethodRefs that are to be resolved.
    // If you change this program, some or all of these metadata tokens might
    // change. The new token values can be discovered by compiling the example
    // and examining the assembly with Ildasm.exe, using the /TOKENS option.
    // Recompile the program after correcting the token values.
    enum Tokens
    {
        Case1 = 0x2b000001,
        Case2 = 0x0A000006,
        Case3 = 0x2b000002,
        Case4 = 0x06000006,
        Case5 = 0x2b000002
    }

    class G1<Tg1>
    {
        public void GM1<Tgm1> (Tg1 param1, Tgm1 param2) {}
        public void M1(Tg1 param) {}
    }

    class G2<Tg2>
    {
        public void GM2<Tgm2> (Tg2 param1, Tgm2 param2)
        {
            // Case 1: A generic method call that depends on its generic
            // context, because it uses the type parameters of the enclosing
            // generic type G2 and the enclosing generic method GM2. The token
            // for the MethodSpec is Tokens.Case1.
            G1<Tg2> g = new G1<Tg2>();
            g.GM1<Tgm2>(param1, param2);

            // Case 2: A non-generic method call that depends on its generic
            // context, because it uses the type parameter of the enclosing
            // generic type G2. The token for the MemberRef is Tokens.Case2.
            g.M1(param1);

            // Case 3: A generic method call that does not depend on its generic
            // context, because it does not use type parameters of the enclosing
            // generic type or method. The token for the MethodSpec is Tokens.Case3.
            G1<int> gi = new G1<int>();
            gi.GM1<object>(42, new Object());

            // Case 4: A non-generic method call that does not depend on its
            // generic context, because it does not use the type parameters of the
            // enclosing generic type or method. The token for the MethodDef is
            // Tokens.Case4.
            Example e = new Example();
            e.M();
        }
    }

    class Example
    {
        public void M()
        {
            G1<int> g = new G1<int>();
            // Case 5: A generic method call that does not have any generic
            // context. The token for the MethodSpec is Tokens.Case5.
            g.GM1<object>(42, new Object());
        }

        static void Main ()
        {
            Module mod = typeof(Example).Assembly.ManifestModule;
            MethodInfo miResolved2 = null;

            // Case 1: A generic method call that is dependent on its generic context.
            //
            // Create and display a MethodInfo representing the MethodSpec of the
            // generic method g.GM1<Tgm2>() that is called in G2<Tg2>.GM2<Tgm2>().
            Type t = typeof(G1<>).MakeGenericType(typeof(G2<>).GetGenericArguments());
            MethodInfo mi = typeof(G2<>).GetMethod("GM2");
            MethodInfo miTest = t.GetMethod("GM1").MakeGenericMethod(mi.GetGenericArguments());
            Console.WriteLine("\nCase 1:\n{0}", miTest);

            // Resolve the MethodSpec token for method G1<Tg2>.GM1<Tgm2>(), which
            // is called in method G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method
            // must be used to obtain the context for resolving the method.
            MethodInfo miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case1,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The overload that doesn't specify generic context throws an exception
            // because there is insufficient context to resolve the token.
            try
            {
                miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case1);
            }
            catch (Exception ex)
            {
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message);
            }

            // Case 2: A non-generic method call that is dependent on its generic context.
            //
            // Create and display a MethodInfo representing the MemberRef of the
            // non-generic method g.M1() that is called in G2<Tg2>.GM2<Tgm2>().
            t = typeof(G1<>).MakeGenericType(typeof(G2<>).GetGenericArguments());
            miTest = t.GetMethod("M1");
            Console.WriteLine("\nCase 2:\n{0}", miTest);

            // Resolve the MemberRef token for method G1<Tg2>.M1(), which is
            // called in method G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method
            // must be used to obtain the context for resolving the method, because
            // the method parameter comes from the generic type G1, and the type
            // argument, Tg2, comes from the generic type that encloses the call.
            // There is no enclosing generic method, so the value Type.EmptyTypes
            // could be passed for the genericMethodArguments parameter.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case2,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The overload that doesn't specify generic context throws an exception
            // because there is insufficient context to resolve the token.
            try
            {
                miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case2);
            }
            catch (Exception ex)
            {
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message);
            }

            // Case 3: A generic method call that is independent of its generic context.
            //
            // Create and display a MethodInfo representing the MethodSpec of the
            // generic method gi.GM1<object>() that is called in G2<Tg2>.GM2<Tgm2>().
            mi = typeof(G1<int>).GetMethod("GM1");
            miTest = mi.MakeGenericMethod(new Type[] { typeof(object) });
            Console.WriteLine("\nCase 3:\n{0}", miTest);

            // Resolve the token for method G1<int>.GM1<object>(), which is called
            // in G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the method call in
            // this case does not use type parameters of the enclosing type or
            // method, so Type.EmptyTypes could be used for both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case3,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on the enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case3);

            // Case 4: A non-generic method call that is independent of its generic context.
            //
            // Create and display a MethodInfo representing the MethodDef of the
            // method e.M() that is called in G2<Tg2>.GM2<Tgm2>().
            miTest = typeof(Example).GetMethod("M");
            Console.WriteLine("\nCase 4:\n{0}", miTest);

            // Resolve the token for method Example.M(), which is called in
            // G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the non-generic
            // method call does not use type parameters of the enclosing type or
            // method, so Type.EmptyTypes could be used for both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case4,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on any enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case4);

            // Case 5: Generic method call in a non-generic context.
            //
            // Create and display a MethodInfo representing the MethodRef of the
            // closed generic method g.GM1<object>() that is called in Example.M().
            mi = typeof(G1<int>).GetMethod("GM1");
            miTest = mi.MakeGenericMethod(new Type[] { typeof(object) });
            Console.WriteLine("\nCase 5:\n{0}", miTest);

            // Resolve the token for method G1<int>.GM1<object>(), which is called
            // in method Example.M(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the enclosing type
            // and method are not generic, so Type.EmptyTypes could be used for
            // both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case5,
                typeof(Example).GetGenericArguments(),
                typeof(Example).GetMethod("M").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on any enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case5);
        }
    }
}
/* This example produces the following output:

Case 1:
Void GM1[Tgm2](Tg2, Tgm2)
Void GM1[Tgm2](Tg2, Tgm2)
Is the resolved method the same? True
System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.

Case 2:
Void M1(Tg2)
Void M1(Tg2)
Is the resolved method the same? True
System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.

Case 3:
Void GM1[Object](Int32, System.Object)
Void GM1[Object](Int32, System.Object)
Is the resolved method the same? True

Case 4:
Void M()
Void M()
Is the resolved method the same? True

Case 5:
Void GM1[Object](Int32, System.Object)
Void GM1[Object](Int32, System.Object)
Is the resolved method the same? True
 */

Imports System.Reflection

Namespace ResolveMethodExample

    ' Metadata tokens for the MethodRefs that are to be resolved.
    ' If you change this program, some or all of these metadata tokens might
    ' change. The new token values can be discovered by compiling the example
    ' and examining the assembly with Ildasm.exe, using the /TOKENS option. 
    ' Recompile the program after correcting the token values. 
    Enum Tokens
        Case1 = &H2B000003
        Case2 = &HA00001F
        Case3 = &H2B000004
        Case4 = &H6000017
        Case5 = &H2B000004
    End Enum 


    Class G1(Of Tg1)

        Public Sub GM1(Of Tgm1) (ByVal param1 As Tg1, ByVal param2 As Tgm1)
        End Sub

        Public Sub M1(ByVal param As Tg1)
        End Sub
    End Class

    Class G2(Of Tg2)
    
        Public Sub GM2(Of Tgm2) (ByVal param1 As Tg2, ByVal param2 As Tgm2)
        
            ' Case 1: A generic method call that depends on its generic 
            ' context, because it uses the type parameters of the enclosing
            ' generic type G2 and the enclosing generic method GM2. The token 
            ' for the MethodSpec is Tokens.Case1.
            Dim g As New G1(Of Tg2)()
            g.GM1(Of Tgm2)(param1, param2)

            ' Case 2: A non-generic method call that depends on its generic 
            ' context, because it uses the type parameter of the enclosing
            ' generic type G2. The token for the MemberRef is Tokens.Case2.
            g.M1(param1)

            ' Case 3: A generic method call that does not depend on its generic 
            ' context, because it does not use type parameters of the enclosing
            ' generic type or method. The token for the MethodSpec is Tokens.Case3.
            Dim gi As New G1(Of Integer)()
            gi.GM1(Of Object)(42, New Object())

            ' Case 4: A non-generic method call that does not depend on its 
            ' generic context, because it does not use the type parameters of the
            ' enclosing generic type or method. The token for the MethodDef is 
            ' Tokens.Case4.
            Dim e As New Example()
            e.M()
        End Sub 
    End Class

    Class Example
        Public Sub M() 
            Dim g As New G1(Of Integer)()
            ' Case 5: A generic method call that does not have any generic 
            ' context. The token for the MethodSpec is Tokens.Case5.
            g.GM1(Of Object)(42, New Object())
        End Sub 
    
        Shared Sub Main() 
            Dim m As [Module] = GetType(Example).Assembly.ManifestModule
            Dim miResolved2 As MethodInfo = Nothing
        
            ' Case 1: A generic method call that is dependent on its generic context.
            '
            ' Create and display a MethodInfo representing the MethodSpec of the 
            ' generic method g.GM1(Of Tgm2)() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            Dim t As Type = GetType(G1(Of )).MakeGenericType(GetType(G2(Of )).GetGenericArguments())
            Dim mi As MethodInfo = GetType(G2(Of )).GetMethod("GM2")
            Dim miTest As MethodInfo = t.GetMethod("GM1").MakeGenericMethod(mi.GetGenericArguments())
            Console.WriteLine(vbCrLf & "Case 1:" & vbCrLf & miTest.ToString())
        
            ' Resolve the MethodSpec token for method G1(Of Tg2).GM1(Of Tgm2)(), which 
            ' is called in method G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments 
            ' method must be used to obtain the context for resolving the method.
            Dim miResolved As MethodInfo = CType(m.ResolveMethod( _
                    CInt(Tokens.Case1), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The overload that doesn't specify generic context throws an exception
            ' because there is insufficient context to resolve the token.
            Try
                miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case1)), MethodInfo)
            Catch ex As Exception
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message)
            End Try
        
        
            ' Case 2: A non-generic method call that is dependent on its generic context.
            '
            ' Create and display a MethodInfo representing the MemberRef of the 
            ' non-generic method g.M1() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            t = GetType(G1(Of )).MakeGenericType(GetType(G2(Of )).GetGenericArguments())
            miTest = t.GetMethod("M1")
            Console.WriteLine(vbCrLf & "Case 2:" & vbCrLf & miTest.ToString())
        
            ' Resolve the MemberRef token for method G1(Of Tg2).M1(), which is
            ' called in method G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments 
            ' method must be used to obtain the context for resolving the method, 
            ' because the method parameter comes from the generic type G1, and the 
            ' because argument, Tg2, comes from the generic type that encloses the 
            ' call. There is no enclosing generic method, so Type.EmptyTypes could
            ' be passed for the genericMethodArguments parameter.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case2), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The overload that doesn't specify generic context throws an exception
            ' because there is insufficient context to resolve the token.
            Try
                miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case2)), MethodInfo)
            Catch ex As Exception
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message)
            End Try
        
        
            ' Case 3: A generic method call that is independent of its generic context.
            '
            ' Create and display a MethodInfo representing the MethodSpec of the 
            ' generic method gi.GM1(Of Object)() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            mi = GetType(G1(Of Integer)).GetMethod("GM1")
            miTest = mi.MakeGenericMethod(New Type() {GetType(Object)})
            Console.WriteLine(vbCrLf & "Case 3:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method G1(Of Integer).GM1(Of Object)(), which is 
            ' calledin G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments method is  
            ' used to obtain the context for resolving the method, but the method call
            ' in this case does not use type parameters of the enclosing type or
            ' method, so Type.EmptyTypes could be used for both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case3), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on the enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case3)), MethodInfo)
        
        
            ' Case 4: A non-generic method call that is independent of its generic context.
            '
            ' Create and display a MethodInfo representing the MethodDef of the 
            ' method e.M() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            miTest = GetType(Example).GetMethod("M")
            Console.WriteLine(vbCrLf & "Case 4:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method Example.M(), which is called in
            ' G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments method is used to 
            ' obtain the context for resolving the method, but the non-generic 
            ' method call does not use type parameters of the enclosing type or
            ' method, so Type.EmptyTypes could be used for both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case4), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on any enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case4)), MethodInfo)
        
        
            ' Case 5: Generic method call in a non-generic context.
            '
            ' Create and display a MethodInfo representing the MethodRef of the 
            ' closed generic method g.GM1(Of Object)() that is called in Example.M().
            mi = GetType(G1(Of Integer)).GetMethod("GM1")
            miTest = mi.MakeGenericMethod(New Type() {GetType(Object)})
            Console.WriteLine(vbCrLf & "Case 5:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method G1(Of Integer).GM1(Of Object)(), which is 
            ' called in method Example.M(). The GetGenericArguments method is used to 
            ' obtain the context for resolving the method, but the enclosing type
            ' and method are not generic, so Type.EmptyTypes could be used for
            ' both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case5), _
                    GetType(Example).GetGenericArguments(), _
                    GetType(Example).GetMethod("M").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on any enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case5)), MethodInfo)
    
        End Sub 
    End Class 
End Namespace

' This example produces the following output:
'
'Case 1:
'Void GM1[Tgm2](Tg2, Tgm2)
'Void GM1[Tgm2](Tg2, Tgm2)
'Is the resolved method the same? True
'System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.
'
'Case 2:
'Void M1(Tg2)
'Void M1(Tg2)
'Is the resolved method the same? True
'System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.
'
'Case 3:
'Void GM1[Object](Int32, System.Object)
'Void GM1[Object](Int32, System.Object)
'Is the resolved method the same? True
'
'Case 4:
'Void M()
'Void M()
'Is the resolved method the same? True
'
'Case 5:
'Void GM1[Object](Int32, System.Object)
'Void GM1[Object](Int32, System.Object)
'Is the resolved method the same? True
'

Комментарии

Type.GetGenericArguments Используйте метод для типа , где metadataToken находится в область, чтобы получить массив аргументов универсального типа для genericTypeArguments. MethodInfo.GetGenericArguments Используйте метод в методе , где metadataToken находится в область, чтобы получить массив аргументов универсального типа для genericMethodArguments. Всегда безопасно предоставлять эти аргументы, даже если они не нужны.

Исходный код:

Module.cs

Исходный код:

Module.cs

Исходный код:

Module.cs

public:
 System::Reflection::MethodBase ^ ResolveMethod(int metadataToken);

public System.Reflection.MethodBase? ResolveMethod (int metadataToken);

public System.Reflection.MethodBase ResolveMethod (int metadataToken);

member this.ResolveMethod : int -> System.Reflection.MethodBase

Public Function ResolveMethod (metadataToken As Integer) As MethodBase

Параметры

Возвращаемое значение

Объект MethodBase, представляющий метод или конструктор, который определяется заданным токеном метаданных.

Исключения

Примеры

В следующем примере показано, как использовать две перегрузки ResolveMethod метода для разрешения маркеров метаданных из вызывающих сайтов в универсальных и неуниверсических контекстах.

В примере кода определяются два универсальных типа, G1<Tg1> и G2<Tg2> (G1(Of Tg1) и G2(Of Tg2) в Visual Basic), каждый из которых имеет универсальный метод. G1<Tg1> также имеет неуниверсивный метод, который использует параметр Tg1 type для своего параметра. Универсальный метод GM2<Tgm2> в типе G2<Tg2> содержит несколько вызовов методов:

• Случай 1. Вызывается универсальный метод GM1<Tgm1> с использованием параметров G2<Tg2> типа и GM2<Tgm2> в качестве аргументов типа. Другими словами, типы параметров вызываемого метода будут зависеть от типов, используемых для создания закрытого универсального типа из определения типа для G2<Tg2>.

• Случай 2. Вызывается неуниверсивный метод M1 . Параметр этого метода использует параметр type определяющего типа , G1<Tg1>который в данном случае заменяется параметром типа включающего типа , G2<Tg2>.

• Случай 3. Вызывается универсальный метод GM1<Tgm1> , указывающий Int32 и Object для аргументов типа универсального типа и универсального метода соответственно. Этот вызов метода не зависит от параметров типа включающего типа или метода.

• Случай 4. Вызывается неуниверсивный Example метод M1 класса . Этот вызов метода не зависит от параметров типа включающего типа или метода.

Кроме того, в примере определяется неуниверсивный Example класс. Этот класс содержит метод M , который выполняет вызов универсального метода:

• Случай 5. Вызывается универсальный метод GM1 , указывающий Int32 и Object для аргументов типа универсального типа и универсального метода соответственно. Контекст для этого метода не имеет включающего универсального типа или универсального метода.

Для каждого случая в примере сначала создается MethodInfo объект , представляющий вызываемый метод, а затем разрешается маркер с помощью ResolveMethod(Int32, Type[], Type[]) перегрузки метода с помощью Type.GetGenericArguments методов и MethodInfo.GetGenericArguments для получения значений genericTypeArguments параметров и genericMethodArguments . Этот метод работает во всех случаях, так как методы возвращают Type.EmptyTypes для неуниверсических контекстов. В примере сравнивается разрешенный MethodInfo объект со сконструированным MethodInfo.

Затем в примере предпринимается попытка использовать перегрузку ResolveMethod(Int32) метода для разрешения маркера. Это работает в случаях 3, 4 и 5, так как вызовы метода не зависят от универсального контекста. В случаях 1 и 2 возникает исключение, так как недостаточно сведений для разрешения маркера.

Значения маркера метаданных жестко закодируются в виде перечисления. Если вы измените этот пример кода, значения маркеров, скорее всего, изменятся. Чтобы определить новые значения маркера, скомпилируйте код и используйте Ildasm.exe с параметром /TOKENS для проверки сборки. Маркеры можно найти в пунктах вызова. Вставьте новые значения в перечисление и перекомпилируйте пример.

using System;
using System.Reflection;

namespace ResolveMethodExample
{
    // Metadata tokens for the MethodRefs that are to be resolved.
    // If you change this program, some or all of these metadata tokens might
    // change. The new token values can be discovered by compiling the example
    // and examining the assembly with Ildasm.exe, using the /TOKENS option.
    // Recompile the program after correcting the token values.
    enum Tokens
    {
        Case1 = 0x2b000001,
        Case2 = 0x0A000006,
        Case3 = 0x2b000002,
        Case4 = 0x06000006,
        Case5 = 0x2b000002
    }

    class G1<Tg1>
    {
        public void GM1<Tgm1> (Tg1 param1, Tgm1 param2) {}
        public void M1(Tg1 param) {}
    }

    class G2<Tg2>
    {
        public void GM2<Tgm2> (Tg2 param1, Tgm2 param2)
        {
            // Case 1: A generic method call that depends on its generic
            // context, because it uses the type parameters of the enclosing
            // generic type G2 and the enclosing generic method GM2. The token
            // for the MethodSpec is Tokens.Case1.
            G1<Tg2> g = new G1<Tg2>();
            g.GM1<Tgm2>(param1, param2);

            // Case 2: A non-generic method call that depends on its generic
            // context, because it uses the type parameter of the enclosing
            // generic type G2. The token for the MemberRef is Tokens.Case2.
            g.M1(param1);

            // Case 3: A generic method call that does not depend on its generic
            // context, because it does not use type parameters of the enclosing
            // generic type or method. The token for the MethodSpec is Tokens.Case3.
            G1<int> gi = new G1<int>();
            gi.GM1<object>(42, new Object());

            // Case 4: A non-generic method call that does not depend on its
            // generic context, because it does not use the type parameters of the
            // enclosing generic type or method. The token for the MethodDef is
            // Tokens.Case4.
            Example e = new Example();
            e.M();
        }
    }

    class Example
    {
        public void M()
        {
            G1<int> g = new G1<int>();
            // Case 5: A generic method call that does not have any generic
            // context. The token for the MethodSpec is Tokens.Case5.
            g.GM1<object>(42, new Object());
        }

        static void Main ()
        {
            Module mod = typeof(Example).Assembly.ManifestModule;
            MethodInfo miResolved2 = null;

            // Case 1: A generic method call that is dependent on its generic context.
            //
            // Create and display a MethodInfo representing the MethodSpec of the
            // generic method g.GM1<Tgm2>() that is called in G2<Tg2>.GM2<Tgm2>().
            Type t = typeof(G1<>).MakeGenericType(typeof(G2<>).GetGenericArguments());
            MethodInfo mi = typeof(G2<>).GetMethod("GM2");
            MethodInfo miTest = t.GetMethod("GM1").MakeGenericMethod(mi.GetGenericArguments());
            Console.WriteLine("\nCase 1:\n{0}", miTest);

            // Resolve the MethodSpec token for method G1<Tg2>.GM1<Tgm2>(), which
            // is called in method G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method
            // must be used to obtain the context for resolving the method.
            MethodInfo miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case1,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The overload that doesn't specify generic context throws an exception
            // because there is insufficient context to resolve the token.
            try
            {
                miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case1);
            }
            catch (Exception ex)
            {
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message);
            }

            // Case 2: A non-generic method call that is dependent on its generic context.
            //
            // Create and display a MethodInfo representing the MemberRef of the
            // non-generic method g.M1() that is called in G2<Tg2>.GM2<Tgm2>().
            t = typeof(G1<>).MakeGenericType(typeof(G2<>).GetGenericArguments());
            miTest = t.GetMethod("M1");
            Console.WriteLine("\nCase 2:\n{0}", miTest);

            // Resolve the MemberRef token for method G1<Tg2>.M1(), which is
            // called in method G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method
            // must be used to obtain the context for resolving the method, because
            // the method parameter comes from the generic type G1, and the type
            // argument, Tg2, comes from the generic type that encloses the call.
            // There is no enclosing generic method, so the value Type.EmptyTypes
            // could be passed for the genericMethodArguments parameter.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case2,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The overload that doesn't specify generic context throws an exception
            // because there is insufficient context to resolve the token.
            try
            {
                miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case2);
            }
            catch (Exception ex)
            {
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message);
            }

            // Case 3: A generic method call that is independent of its generic context.
            //
            // Create and display a MethodInfo representing the MethodSpec of the
            // generic method gi.GM1<object>() that is called in G2<Tg2>.GM2<Tgm2>().
            mi = typeof(G1<int>).GetMethod("GM1");
            miTest = mi.MakeGenericMethod(new Type[] { typeof(object) });
            Console.WriteLine("\nCase 3:\n{0}", miTest);

            // Resolve the token for method G1<int>.GM1<object>(), which is called
            // in G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the method call in
            // this case does not use type parameters of the enclosing type or
            // method, so Type.EmptyTypes could be used for both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case3,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on the enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case3);

            // Case 4: A non-generic method call that is independent of its generic context.
            //
            // Create and display a MethodInfo representing the MethodDef of the
            // method e.M() that is called in G2<Tg2>.GM2<Tgm2>().
            miTest = typeof(Example).GetMethod("M");
            Console.WriteLine("\nCase 4:\n{0}", miTest);

            // Resolve the token for method Example.M(), which is called in
            // G2<Tg2>.GM2<Tgm2>(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the non-generic
            // method call does not use type parameters of the enclosing type or
            // method, so Type.EmptyTypes could be used for both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case4,
                typeof(G2<>).GetGenericArguments(),
                typeof(G2<>).GetMethod("GM2").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on any enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case4);

            // Case 5: Generic method call in a non-generic context.
            //
            // Create and display a MethodInfo representing the MethodRef of the
            // closed generic method g.GM1<object>() that is called in Example.M().
            mi = typeof(G1<int>).GetMethod("GM1");
            miTest = mi.MakeGenericMethod(new Type[] { typeof(object) });
            Console.WriteLine("\nCase 5:\n{0}", miTest);

            // Resolve the token for method G1<int>.GM1<object>(), which is called
            // in method Example.M(). The GetGenericArguments method is used to
            // obtain the context for resolving the method, but the enclosing type
            // and method are not generic, so Type.EmptyTypes could be used for
            // both arguments.
            miResolved = (MethodInfo) mod.ResolveMethod(
                (int)Tokens.Case5,
                typeof(Example).GetGenericArguments(),
                typeof(Example).GetMethod("M").GetGenericArguments());
            Console.WriteLine(miResolved);
            Console.WriteLine("Is the resolved method the same? {0}", miResolved == miTest);

            // The method call in this case does not depend on any enclosing generic
            // context, so the token can also be resolved by the simpler overload.
            miResolved2 = (MethodInfo) mod.ResolveMethod((int)Tokens.Case5);
        }
    }
}
/* This example produces the following output:

Case 1:
Void GM1[Tgm2](Tg2, Tgm2)
Void GM1[Tgm2](Tg2, Tgm2)
Is the resolved method the same? True
System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.

Case 2:
Void M1(Tg2)
Void M1(Tg2)
Is the resolved method the same? True
System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.

Case 3:
Void GM1[Object](Int32, System.Object)
Void GM1[Object](Int32, System.Object)
Is the resolved method the same? True

Case 4:
Void M()
Void M()
Is the resolved method the same? True

Case 5:
Void GM1[Object](Int32, System.Object)
Void GM1[Object](Int32, System.Object)
Is the resolved method the same? True
 */

Imports System.Reflection

Namespace ResolveMethodExample

    ' Metadata tokens for the MethodRefs that are to be resolved.
    ' If you change this program, some or all of these metadata tokens might
    ' change. The new token values can be discovered by compiling the example
    ' and examining the assembly with Ildasm.exe, using the /TOKENS option. 
    ' Recompile the program after correcting the token values. 
    Enum Tokens
        Case1 = &H2B000003
        Case2 = &HA00001F
        Case3 = &H2B000004
        Case4 = &H6000017
        Case5 = &H2B000004
    End Enum 


    Class G1(Of Tg1)

        Public Sub GM1(Of Tgm1) (ByVal param1 As Tg1, ByVal param2 As Tgm1)
        End Sub

        Public Sub M1(ByVal param As Tg1)
        End Sub
    End Class

    Class G2(Of Tg2)
    
        Public Sub GM2(Of Tgm2) (ByVal param1 As Tg2, ByVal param2 As Tgm2)
        
            ' Case 1: A generic method call that depends on its generic 
            ' context, because it uses the type parameters of the enclosing
            ' generic type G2 and the enclosing generic method GM2. The token 
            ' for the MethodSpec is Tokens.Case1.
            Dim g As New G1(Of Tg2)()
            g.GM1(Of Tgm2)(param1, param2)

            ' Case 2: A non-generic method call that depends on its generic 
            ' context, because it uses the type parameter of the enclosing
            ' generic type G2. The token for the MemberRef is Tokens.Case2.
            g.M1(param1)

            ' Case 3: A generic method call that does not depend on its generic 
            ' context, because it does not use type parameters of the enclosing
            ' generic type or method. The token for the MethodSpec is Tokens.Case3.
            Dim gi As New G1(Of Integer)()
            gi.GM1(Of Object)(42, New Object())

            ' Case 4: A non-generic method call that does not depend on its 
            ' generic context, because it does not use the type parameters of the
            ' enclosing generic type or method. The token for the MethodDef is 
            ' Tokens.Case4.
            Dim e As New Example()
            e.M()
        End Sub 
    End Class

    Class Example
        Public Sub M() 
            Dim g As New G1(Of Integer)()
            ' Case 5: A generic method call that does not have any generic 
            ' context. The token for the MethodSpec is Tokens.Case5.
            g.GM1(Of Object)(42, New Object())
        End Sub 
    
        Shared Sub Main() 
            Dim m As [Module] = GetType(Example).Assembly.ManifestModule
            Dim miResolved2 As MethodInfo = Nothing
        
            ' Case 1: A generic method call that is dependent on its generic context.
            '
            ' Create and display a MethodInfo representing the MethodSpec of the 
            ' generic method g.GM1(Of Tgm2)() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            Dim t As Type = GetType(G1(Of )).MakeGenericType(GetType(G2(Of )).GetGenericArguments())
            Dim mi As MethodInfo = GetType(G2(Of )).GetMethod("GM2")
            Dim miTest As MethodInfo = t.GetMethod("GM1").MakeGenericMethod(mi.GetGenericArguments())
            Console.WriteLine(vbCrLf & "Case 1:" & vbCrLf & miTest.ToString())
        
            ' Resolve the MethodSpec token for method G1(Of Tg2).GM1(Of Tgm2)(), which 
            ' is called in method G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments 
            ' method must be used to obtain the context for resolving the method.
            Dim miResolved As MethodInfo = CType(m.ResolveMethod( _
                    CInt(Tokens.Case1), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The overload that doesn't specify generic context throws an exception
            ' because there is insufficient context to resolve the token.
            Try
                miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case1)), MethodInfo)
            Catch ex As Exception
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message)
            End Try
        
        
            ' Case 2: A non-generic method call that is dependent on its generic context.
            '
            ' Create and display a MethodInfo representing the MemberRef of the 
            ' non-generic method g.M1() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            t = GetType(G1(Of )).MakeGenericType(GetType(G2(Of )).GetGenericArguments())
            miTest = t.GetMethod("M1")
            Console.WriteLine(vbCrLf & "Case 2:" & vbCrLf & miTest.ToString())
        
            ' Resolve the MemberRef token for method G1(Of Tg2).M1(), which is
            ' called in method G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments 
            ' method must be used to obtain the context for resolving the method, 
            ' because the method parameter comes from the generic type G1, and the 
            ' because argument, Tg2, comes from the generic type that encloses the 
            ' call. There is no enclosing generic method, so Type.EmptyTypes could
            ' be passed for the genericMethodArguments parameter.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case2), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The overload that doesn't specify generic context throws an exception
            ' because there is insufficient context to resolve the token.
            Try
                miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case2)), MethodInfo)
            Catch ex As Exception
                Console.WriteLine("{0}: {1}", ex.GetType(), ex.Message)
            End Try
        
        
            ' Case 3: A generic method call that is independent of its generic context.
            '
            ' Create and display a MethodInfo representing the MethodSpec of the 
            ' generic method gi.GM1(Of Object)() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            mi = GetType(G1(Of Integer)).GetMethod("GM1")
            miTest = mi.MakeGenericMethod(New Type() {GetType(Object)})
            Console.WriteLine(vbCrLf & "Case 3:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method G1(Of Integer).GM1(Of Object)(), which is 
            ' calledin G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments method is  
            ' used to obtain the context for resolving the method, but the method call
            ' in this case does not use type parameters of the enclosing type or
            ' method, so Type.EmptyTypes could be used for both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case3), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on the enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case3)), MethodInfo)
        
        
            ' Case 4: A non-generic method call that is independent of its generic context.
            '
            ' Create and display a MethodInfo representing the MethodDef of the 
            ' method e.M() that is called in G2(Of Tg2).GM2(Of Tgm2)().
            miTest = GetType(Example).GetMethod("M")
            Console.WriteLine(vbCrLf & "Case 4:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method Example.M(), which is called in
            ' G2(Of Tg2).GM2(Of Tgm2)(). The GetGenericArguments method is used to 
            ' obtain the context for resolving the method, but the non-generic 
            ' method call does not use type parameters of the enclosing type or
            ' method, so Type.EmptyTypes could be used for both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case4), _
                    GetType(G2(Of )).GetGenericArguments(), _
                    GetType(G2(Of )).GetMethod("GM2").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on any enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case4)), MethodInfo)
        
        
            ' Case 5: Generic method call in a non-generic context.
            '
            ' Create and display a MethodInfo representing the MethodRef of the 
            ' closed generic method g.GM1(Of Object)() that is called in Example.M().
            mi = GetType(G1(Of Integer)).GetMethod("GM1")
            miTest = mi.MakeGenericMethod(New Type() {GetType(Object)})
            Console.WriteLine(vbCrLf & "Case 5:" & vbCrLf & miTest.ToString())
        
            ' Resolve the token for method G1(Of Integer).GM1(Of Object)(), which is 
            ' called in method Example.M(). The GetGenericArguments method is used to 
            ' obtain the context for resolving the method, but the enclosing type
            ' and method are not generic, so Type.EmptyTypes could be used for
            ' both arguments.
            miResolved = CType(m.ResolveMethod( _
                    CInt(Tokens.Case5), _
                    GetType(Example).GetGenericArguments(), _
                    GetType(Example).GetMethod("M").GetGenericArguments()), _
                MethodInfo)
            Console.WriteLine(miResolved)
            Console.WriteLine("Is the resolved method the same? {0}", miResolved Is miTest)
        
            ' The method call in this case does not depend on any enclosing generic
            ' context, so the token can also be resolved by the simpler overload.
            miResolved2 = CType(m.ResolveMethod(CInt(Tokens.Case5)), MethodInfo)
    
        End Sub 
    End Class 
End Namespace

' This example produces the following output:
'
'Case 1:
'Void GM1[Tgm2](Tg2, Tgm2)
'Void GM1[Tgm2](Tg2, Tgm2)
'Is the resolved method the same? True
'System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.
'
'Case 2:
'Void M1(Tg2)
'Void M1(Tg2)
'Is the resolved method the same? True
'System.ArgumentException: A BadImageFormatException has been thrown while parsing the signature. This is likely due to lack of a generic context. Ensure genericTypeArguments and genericMethodArguments are provided and contain enough context.
'
'Case 3:
'Void GM1[Object](Int32, System.Object)
'Void GM1[Object](Int32, System.Object)
'Is the resolved method the same? True
'
'Case 4:
'Void M()
'Void M()
'Is the resolved method the same? True
'
'Case 5:
'Void GM1[Object](Int32, System.Object)
'Void GM1[Object](Int32, System.Object)
'Is the resolved method the same? True
'

Комментарии

Чтобы разрешить маркер метаданных для объекта , MethodSpec сигнатура которого содержит тип ELEMENT_TYPE_VAR элемента или ELEMENT_TYPE_MVAR, используйте перегрузку ResolveMethod(Int32, Type[], Type[]) метода, которая позволяет указать необходимый контекст. Это значит, что при разрешении маркера метаданных для метода, который зависит от параметров универсального типа универсального типа и (или) универсального метода, в который внедрен маркер, необходимо использовать перегрузку, позволяющую предоставлять эти параметры типа.