TypeBuilder.DefineMethod 方法

參考

定義

命名空間:: System.Reflection.Emit

組件:: System.Reflection.Emit.dll

組件:: mscorlib.dll

組件:: netstandard.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

將方法加入類型中。

多載

DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[], Type[], Type[], Type[][], Type[][])	將新方法加入此類型，含指定名稱、方法屬性、呼叫慣例、方法簽章和自訂修飾詞。
DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[])	將新方法加入此類型，含指定名稱、方法屬性、呼叫慣例和方法簽章。
DefineMethod(String, MethodAttributes, CallingConventions)	將新方法加入類型，並指定其名稱、方法屬性和呼叫慣例。
DefineMethod(String, MethodAttributes)	將新方法加入此類型，並指定其名稱和方法屬性。
DefineMethod(String, MethodAttributes, Type, Type[])	將新方法加入此類型中，含指定名稱、方法屬性和方法簽章。

DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[], Type[], Type[], Type[][], Type[][])

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

將新方法加入此類型，含指定名稱、方法屬性、呼叫慣例、方法簽章和自訂修飾詞。

public:
 System::Reflection::Emit::MethodBuilder ^ DefineMethod(System::String ^ name, System::Reflection::MethodAttributes attributes, System::Reflection::CallingConventions callingConvention, Type ^ returnType, cli::array <Type ^> ^ returnTypeRequiredCustomModifiers, cli::array <Type ^> ^ returnTypeOptionalCustomModifiers, cli::array <Type ^> ^ parameterTypes, cli::array <cli::array <Type ^> ^> ^ parameterTypeRequiredCustomModifiers, cli::array <cli::array <Type ^> ^> ^ parameterTypeOptionalCustomModifiers);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type? returnType, Type[]? returnTypeRequiredCustomModifiers, Type[]? returnTypeOptionalCustomModifiers, Type[]? parameterTypes, Type[][]? parameterTypeRequiredCustomModifiers, Type[][]? parameterTypeOptionalCustomModifiers);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type returnType, Type[] returnTypeRequiredCustomModifiers, Type[] returnTypeOptionalCustomModifiers, Type[] parameterTypes, Type[][] parameterTypeRequiredCustomModifiers, Type[][] parameterTypeOptionalCustomModifiers);

member this.DefineMethod : string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions * Type * Type[] * Type[] * Type[] * Type[][] * Type[][] -> System.Reflection.Emit.MethodBuilder

Public Function DefineMethod (name As String, attributes As MethodAttributes, callingConvention As CallingConventions, returnType As Type, returnTypeRequiredCustomModifiers As Type(), returnTypeOptionalCustomModifiers As Type(), parameterTypes As Type(), parameterTypeRequiredCustomModifiers As Type()(), parameterTypeOptionalCustomModifiers As Type()()) As MethodBuilder

參數

name: String

方法的名稱。 name 不能包含內嵌的 null。

attributes: MethodAttributes

方法的屬性。

callingConvention: CallingConventions

方法的呼叫慣例。

returnType: Type

方法的傳回類型。

returnTypeRequiredCustomModifiers: Type[]

一種類型陣列，用來為方法的傳回類型指出必要的自訂修飾詞，例如 IsConst。如果傳回類型沒有必要的自訂修飾詞，則指定 null。

returnTypeOptionalCustomModifiers: Type[]

一種類型陣列，用來為方法的傳回類型指出選擇性自訂修飾詞，例如 IsConst。如果傳回類型沒有選擇性的自訂修飾詞，則指定 null。

parameterTypes: Type[]

方法的參數類型。

parameterTypeRequiredCustomModifiers: Type[][]

類型陣列的陣列。每個類型陣列都代表其對應參數必要的自訂修飾詞，例如 IsConst。如果特定的參數沒有必要的自訂修飾詞，則指定 null，而非類型陣列。如果這些參數都沒有必要的自訂修飾詞，則指定 null，而非陣列的陣列。

parameterTypeOptionalCustomModifiers: Type[][]

類型陣列的陣列。每個類型陣列都代表其對應參數的選擇性自訂修飾詞，例如 IsConst。如果特定的參數沒有選擇性的自訂修飾詞，則指定 null，而非類型陣列。如果這些參數都沒有選擇性的自訂修飾詞，則指定 null，而非陣列的陣列。

傳回

MethodBuilder

MethodBuilder 物件，代表新加入的方法。

例外狀況

ArgumentException

name 的長度為零。

-或-

這個方法的父類型是介面，且這個方法不是虛擬 (在 Visual Basic 中為 Overridable)。

-或-

parameterTypeRequiredCustomModifiers 或 parameterTypeOptionalCustomModifiers 的大小不等於 parameterTypes 的大小。

ArgumentNullException

name 為 null。

InvalidOperationException

先前使用 CreateType() 建立的類型。

-或-

目前動態類型的 IsGenericType 屬性為 true，但 IsGenericTypeDefinition 屬性為 false。

備註

如果您需要指定自訂修飾詞，請使用此多載。例如，如果您需要在建立方法之後指定自訂修飾詞，例如，使用其泛型型別參數所指定參數類型的泛型方法，您可以使用 DefineMethod(String, MethodAttributes) 或 DefineMethod(String, MethodAttributes, CallingConventions) 方法多載來定義方法，然後使用 MethodBuilder.SetSignature 方法來定義參數，並使用自訂修飾詞來定義參數和傳回型別。

注意

如需自訂修飾詞的詳細資訊，請參閱 ECMA C# 和 Common Language Infrastructure Standard 和 Standard ECMA-335 - Common Language Infrastructure (CLI) 。

適用於

DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[])

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

將新方法加入此類型，含指定名稱、方法屬性、呼叫慣例和方法簽章。

public:
 System::Reflection::Emit::MethodBuilder ^ DefineMethod(System::String ^ name, System::Reflection::MethodAttributes attributes, System::Reflection::CallingConventions callingConvention, Type ^ returnType, cli::array <Type ^> ^ parameterTypes);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type? returnType, Type[]? parameterTypes);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type returnType, Type[] parameterTypes);

member this.DefineMethod : string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions * Type * Type[] -> System.Reflection.Emit.MethodBuilder

Public Function DefineMethod (name As String, attributes As MethodAttributes, callingConvention As CallingConventions, returnType As Type, parameterTypes As Type()) As MethodBuilder

參數

name: String

方法的名稱。 name 不能包含內嵌的 null。

attributes: MethodAttributes

方法的屬性。

callingConvention: CallingConventions

方法的呼叫慣例。

returnType: Type

方法的傳回類型。

parameterTypes: Type[]

方法的參數類型。

傳回

MethodBuilder

MethodBuilder 代表新定義的方法。

例外狀況

ArgumentException

name 的長度為零。

-或-

這個方法的父類型是介面，且這個方法不是虛擬 (在 Visual Basic 中為 Overridable)。

ArgumentNullException

name 為 null。

InvalidOperationException

先前使用 CreateType() 建立的類型。

-或-

目前動態類型的 IsGenericType 屬性為 true，但 IsGenericTypeDefinition 屬性為 false。

範例

下列程式碼範例示範如何使用 DefineMethod 在動態類型上設定建構函式的特定簽章和屬性，並傳回對應 MethodBuilder 至 MSIL 母體擴展的。

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
public interface class IMyInterface
{
   String^ HelloMethod( String^ parameter );
};

public ref class EmittedClass
{
public:
   // Because this method calls Activator::CreateInstance, 
   // it requires full trust. 
   [System::Security::Permissions::PermissionSetAttribute
    (System::Security::Permissions::SecurityAction::Demand, Name = "FullTrust")]
   static void Main()
   {
      Type^ myNestedClassType = CreateCallee( Thread::GetDomain() );
      
      // Create an instance of 'MyNestedClass'.
      IMyInterface^ myInterface = dynamic_cast<IMyInterface^>(Activator::CreateInstance( myNestedClassType ));
      Console::WriteLine( myInterface->HelloMethod( "Bill" ) );
   }

private:

   // Create the callee transient dynamic assembly.
   static Type^ CreateCallee( AppDomain^ myAppDomain )
   {
      AssemblyName^ myAssemblyName = gcnew AssemblyName;
      myAssemblyName->Name = "EmittedClass";
      
      // Create the callee dynamic assembly.
      AssemblyBuilder^ myAssembly = myAppDomain->DefineDynamicAssembly( myAssemblyName, AssemblyBuilderAccess::Run );
      
      // Create a dynamic module in the callee assembly.
      ModuleBuilder^ myModule = myAssembly->DefineDynamicModule( "EmittedModule" );
      
      // Define a public class named "MyHelloWorld".
      TypeBuilder^ myHelloWorldType = myModule->DefineType( "MyHelloWorld", TypeAttributes::Public );
      
      // Define a public nested class named 'MyNestedClass'.
      array<Type^>^temp0 = {IMyInterface::typeid};
      TypeBuilder^ myNestedClassType = myHelloWorldType->DefineNestedType( "MyNestedClass", TypeAttributes::NestedPublic, EmittedClass::typeid, temp0 );
      
      // Implement 'IMyInterface' interface.
      myNestedClassType->AddInterfaceImplementation( IMyInterface::typeid );
      
      // Define 'HelloMethod' of 'IMyInterface'.
      array<Type^>^temp1 = {String::typeid};
      MethodBuilder^ myHelloMethod = myNestedClassType->DefineMethod( "HelloMethod", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::Virtual), String::typeid, temp1 );
      
      // Generate IL for 'GetGreeting' method.
      ILGenerator^ myMethodIL = myHelloMethod->GetILGenerator();
      myMethodIL->Emit( OpCodes::Ldstr, "Hi! " );
      myMethodIL->Emit( OpCodes::Ldarg_1 );
      array<Type^>^temp2 = {String::typeid,String::typeid};
      MethodInfo^ infoMethod = String::typeid->GetMethod( "Concat", temp2 );
      myMethodIL->Emit( OpCodes::Call, infoMethod );
      myMethodIL->Emit( OpCodes::Ret );
      MethodInfo^ myHelloMethodInfo = IMyInterface::typeid->GetMethod( "HelloMethod" );
      
      // Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType->DefineMethodOverride( myHelloMethod, myHelloMethodInfo );
      
      // Create 'MyHelloWorld' type.
      Type^ myType = myHelloWorldType->CreateType();
      
      // Create 'MyNestedClass' type.
      return myNestedClassType->CreateType();
   }
};

int main()
{
   EmittedClass::Main();
}

using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;
using System.Security.Permissions;

public interface IMyInterface
{
   String HelloMethod(String parameter);
}

public class Example
{
   public static void Main()
   {
      Type myNestedClassType = CreateCallee(Thread.GetDomain());
      // Cretae an instance of 'MyNestedClass'.
      IMyInterface myInterface =
         (IMyInterface)Activator.CreateInstance(myNestedClassType);
      Console.WriteLine(myInterface.HelloMethod("Bill"));
   }

   // Create the callee transient dynamic assembly.
   private static Type CreateCallee(AppDomain myAppDomain)
   {
      AssemblyName myAssemblyName = new AssemblyName();
      myAssemblyName.Name = "Example";
      // Create the callee dynamic assembly.
      AssemblyBuilder myAssembly =
         myAppDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run);
      // Create a dynamic module in the callee assembly.
      ModuleBuilder myModule = myAssembly.DefineDynamicModule("EmittedModule");
      // Define a public class named "MyHelloWorld".
      TypeBuilder myHelloWorldType =
         myModule.DefineType("MyHelloWorld", TypeAttributes.Public);
      // Define a public nested class named 'MyNestedClass'.
      TypeBuilder myNestedClassType =
         myHelloWorldType.DefineNestedType("MyNestedClass",
            TypeAttributes.NestedPublic, typeof(Example),
            new Type[]{typeof(IMyInterface)});
      // Implement 'IMyInterface' interface.
      myNestedClassType.AddInterfaceImplementation(typeof(IMyInterface));
      // Define 'HelloMethod' of 'IMyInterface'.
      MethodBuilder myHelloMethod =
         myNestedClassType.DefineMethod("HelloMethod",
            MethodAttributes.Public | MethodAttributes.Virtual,
            typeof(String), new Type[]{typeof(String)});
      // Generate IL for 'GetGreeting' method.
      ILGenerator myMethodIL = myHelloMethod.GetILGenerator();
      myMethodIL.Emit(OpCodes.Ldstr, "Hi! ");
      myMethodIL.Emit(OpCodes.Ldarg_1);
      MethodInfo infoMethod =
         typeof(String).GetMethod("Concat",new Type[]{typeof(string),typeof(string)});
      myMethodIL.Emit(OpCodes.Call, infoMethod);
      myMethodIL.Emit(OpCodes.Ret);

      MethodInfo myHelloMethodInfo =
         typeof(IMyInterface).GetMethod("HelloMethod");
      // Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType.DefineMethodOverride(myHelloMethod, myHelloMethodInfo);
      // Create 'MyHelloWorld' type.
      Type myType = myHelloWorldType.CreateType();
      // Create 'MyNestedClass' type.
      return myNestedClassType.CreateType();
   }
}

Imports System.Threading
Imports System.Reflection
Imports System.Reflection.Emit
Imports System.Security.Permissions

Public Interface IMyInterface
   Function HelloMethod(parameter As String) As String
End Interface 'IMyInterface

Public Class Example
   <PermissionSetAttribute(SecurityAction.Demand, Name:="FullTrust")> _
   Public Shared Sub Main()
      Dim myNestedClassType As Type = CreateCallee(Thread.GetDomain())
      ' Create an instance of 'MyNestedClass'.
      Dim myInterface As IMyInterface = _
            CType(Activator.CreateInstance(myNestedClassType), IMyInterface)
      Console.WriteLine(myInterface.HelloMethod("Bill"))
   End Sub

   ' Create the callee transient dynamic assembly.
   Private Shared Function CreateCallee(myAppDomain As AppDomain) As Type
      Dim myAssemblyName As New AssemblyName()
      myAssemblyName.Name = "Example"
      ' Create the callee dynamic assembly.
      Dim myAssembly As AssemblyBuilder = _
               myAppDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run)
      ' Create a dynamic module in the callee assembly.
      Dim myModule As ModuleBuilder = myAssembly.DefineDynamicModule("EmittedModule")
      ' Define a public class named "MyHelloWorld".
      Dim myHelloWorldType As TypeBuilder = _
               myModule.DefineType("MyHelloWorld", TypeAttributes.Public)
      ' Define a public nested class named 'MyNestedClass'.
      Dim myNestedClassType As TypeBuilder = _
               myHelloWorldType.DefineNestedType("MyNestedClass", TypeAttributes.NestedPublic, _
               GetType(Example), New Type() {GetType(IMyInterface)})
      ' Implement 'IMyInterface' interface.
      myNestedClassType.AddInterfaceImplementation(GetType(IMyInterface))
      ' Define 'HelloMethod' of 'IMyInterface'.
      Dim myHelloMethod As MethodBuilder = _
               myNestedClassType.DefineMethod("HelloMethod", MethodAttributes.Public Or _
               MethodAttributes.Virtual, GetType(String), New Type() {GetType(String)})
      ' Generate IL for 'GetGreeting' method.
      Dim myMethodIL As ILGenerator = myHelloMethod.GetILGenerator()
      myMethodIL.Emit(OpCodes.Ldstr, "Hi! ")
      myMethodIL.Emit(OpCodes.Ldarg_1)
      Dim infoMethod As MethodInfo = _
               GetType(String).GetMethod("Concat", New Type() {GetType(String), GetType(String)})
      myMethodIL.Emit(OpCodes.Call, infoMethod)
      myMethodIL.Emit(OpCodes.Ret)

      Dim myHelloMethodInfo As MethodInfo = GetType(IMyInterface).GetMethod("HelloMethod")
      ' Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType.DefineMethodOverride(myHelloMethod, myHelloMethodInfo)
      ' Create 'MyHelloWorld' type.
      Dim myType As Type = myHelloWorldType.CreateType()
      ' Create 'MyNestedClass' type.
      Return myNestedClassType.CreateType()
   End Function 'CreateCallee
End Class

適用於

DefineMethod(String, MethodAttributes, CallingConventions)

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

將新方法加入類型，並指定其名稱、方法屬性和呼叫慣例。

public:
 System::Reflection::Emit::MethodBuilder ^ DefineMethod(System::String ^ name, System::Reflection::MethodAttributes attributes, System::Reflection::CallingConventions callingConvention);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention);

member this.DefineMethod : string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions -> System.Reflection.Emit.MethodBuilder

Public Function DefineMethod (name As String, attributes As MethodAttributes, callingConvention As CallingConventions) As MethodBuilder

參數

name: String

方法的名稱。 name 不能包含內嵌的 null。

attributes: MethodAttributes

方法的屬性。

callingConvention: CallingConventions

方法的呼叫慣例。

傳回

MethodBuilder

MethodBuilder 代表新定義的方法。

例外狀況

ArgumentException

name 的長度為零。

-或-

這個方法的父類型是介面，且這個方法不是虛擬 (在 Visual Basic 中為 Overridable)。

ArgumentNullException

name 為 null。

InvalidOperationException

先前使用 CreateType() 建立的類型。

-或-

目前動態類型的 IsGenericType 屬性為 true，但 IsGenericTypeDefinition 屬性為 false。

備註

當您在定義方法時不知道方法簽章時，請使用這個方法多載。例如，方法的泛型型別參數和傳回型別可能會由方法的泛型型別參數指定，這個參數類型必須在方法加入至型別之後定義。稍後 MethodBuilder.SetSignature 可以使用方法設定方法的參數和傳回型別。

另請參閱

DefineGenericParameters(String[])

適用於

DefineMethod(String, MethodAttributes)

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

將新方法加入此類型，並指定其名稱和方法屬性。

public:
 System::Reflection::Emit::MethodBuilder ^ DefineMethod(System::String ^ name, System::Reflection::MethodAttributes attributes);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes);

member this.DefineMethod : string * System.Reflection.MethodAttributes -> System.Reflection.Emit.MethodBuilder

Public Function DefineMethod (name As String, attributes As MethodAttributes) As MethodBuilder

參數

name: String

方法的名稱。 name 不能包含內嵌的 null。

attributes: MethodAttributes

方法的屬性。

傳回

MethodBuilder

MethodBuilder 代表新定義的方法。

例外狀況

ArgumentException

name 的長度為零。

-或-

這個方法的父類型是介面，且這個方法不是虛擬 (在 Visual Basic 中為 Overridable)。

ArgumentNullException

name 為 null。

InvalidOperationException

先前使用 CreateType() 建立的類型。

-或-

目前動態類型的 IsGenericType 屬性為 true，但 IsGenericTypeDefinition 屬性為 false。

範例

下列程式碼範例會定義名為 DemoMethod 的泛型方法，其參數類型和傳回型別是由其泛型型別參數所指定。方法會使用標準呼叫慣例，在沒有簽章的情況下定義。方法 MethodBuilder.DefineGenericParameters 可用來建立 DemoMethod 泛型方法，然後會針對簽章和傳回型別使用新定義的型別參數。

此程式碼範例是方法所提供較大範例的 DefineGenericParameters 一部分。

// Define a Shared, Public method with standard calling
// conventions. Do not specify the parameter types or the
// return type, because type parameters will be used for
// those types, and the type parameters have not been
// defined yet.
MethodBuilder^ sampleMethodBuilder =
    sampleTypeBuilder->DefineMethod("SampleMethod",
    MethodAttributes::Public | MethodAttributes::Static);

// Define a Shared, Public method with standard calling
// conventions. Do not specify the parameter types or the
// return type, because type parameters will be used for
// those types, and the type parameters have not been
// defined yet.
MethodBuilder demoMethod = demoType.DefineMethod(
    "DemoMethod",
    MethodAttributes.Public | MethodAttributes.Static
);

' Define a Shared, Public method with standard calling
' conventions. Do not specify the parameter types or the
' return type, because type parameters will be used for 
' those types, and the type parameters have not been
' defined yet.
Dim demoMethod As MethodBuilder = _
    demoType.DefineMethod("DemoMethod", _
        MethodAttributes.Public Or MethodAttributes.Static)

// Defining generic parameters for the method makes it a
// generic method. By convention, type parameters are
// single alphabetic characters. T and U are used here.
//
array<String^>^ genericTypeNames = {"T", "U"};
array<GenericTypeParameterBuilder^>^ genericTypes =
    sampleMethodBuilder->DefineGenericParameters(
    genericTypeNames);

// Defining generic parameters for the method makes it a
// generic method. By convention, type parameters are
// single alphabetic characters. T and U are used here.
//
string[] typeParamNames = {"T", "U"};
GenericTypeParameterBuilder[] typeParameters =
    demoMethod.DefineGenericParameters(typeParamNames);

// The second type parameter is constrained to be a
// reference type.
typeParameters[1].SetGenericParameterAttributes(
    GenericParameterAttributes.ReferenceTypeConstraint);

' Defining generic parameters for the method makes it a
' generic method. By convention, type parameters are 
' single alphabetic characters. T and U are used here.
'
Dim typeParamNames() As String = {"T", "U"}
Dim typeParameters() As GenericTypeParameterBuilder = _
    demoMethod.DefineGenericParameters(typeParamNames)

' The second type parameter is constrained to be a 
' reference type.
typeParameters(1).SetGenericParameterAttributes( _
    GenericParameterAttributes.ReferenceTypeConstraint)

// Set parameter types for the method. The method takes
// one parameter, and its type is specified by the first
// type parameter, T.
array<Type^>^ parameterTypes = {genericTypes[0]};
sampleMethodBuilder->SetParameters(parameterTypes);

// Set the return type for the method. The return type is
// specified by the second type parameter, U.
sampleMethodBuilder->SetReturnType(genericTypes[1]);

// Set parameter types for the method. The method takes
// one parameter, and its type is specified by the first
// type parameter, T.
Type[] parms = {typeParameters[0]};
demoMethod.SetParameters(parms);

// Set the return type for the method. The return type is
// specified by the second type parameter, U.
demoMethod.SetReturnType(typeParameters[1]);

' Set parameter types for the method. The method takes
' one parameter, and its type is specified by the first
' type parameter, T.
Dim params() As Type = {typeParameters(0)}
demoMethod.SetParameters(params)

' Set the return type for the method. The return type is
' specified by the second type parameter, U.
demoMethod.SetReturnType(typeParameters(1))

備註

這個方法多載會使用 CallingConventions.Standard 定義方法。如果您需要定義不含簽章的方法，請使用不同的呼叫慣例，請使用 DefineMethod(String, MethodAttributes, CallingConventions) 方法多載。

另請參閱

DefineGenericParameters(String[])

適用於

DefineMethod(String, MethodAttributes, Type, Type[])

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

來源:: TypeBuilder.cs

將新方法加入此類型中，含指定名稱、方法屬性和方法簽章。

public:
 System::Reflection::Emit::MethodBuilder ^ DefineMethod(System::String ^ name, System::Reflection::MethodAttributes attributes, Type ^ returnType, cli::array <Type ^> ^ parameterTypes);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, Type? returnType, Type[]? parameterTypes);

public System.Reflection.Emit.MethodBuilder DefineMethod (string name, System.Reflection.MethodAttributes attributes, Type returnType, Type[] parameterTypes);

member this.DefineMethod : string * System.Reflection.MethodAttributes * Type * Type[] -> System.Reflection.Emit.MethodBuilder

Public Function DefineMethod (name As String, attributes As MethodAttributes, returnType As Type, parameterTypes As Type()) As MethodBuilder

參數

name: String

方法的名稱。 name 不能包含內嵌的 null。

attributes: MethodAttributes

方法的屬性。

returnType: Type

方法的傳回類型。

parameterTypes: Type[]

方法的參數類型。

傳回

MethodBuilder

已定義的方法。

例外狀況

ArgumentException

name 的長度為零。

-或-

這個方法的父類型是介面，且這個方法不是虛擬 (在 Visual Basic 中為 Overridable)。

ArgumentNullException

name 為 null。

InvalidOperationException

先前使用 CreateType() 建立的類型。

-或-

目前動態類型的 IsGenericType 屬性為 true，但 IsGenericTypeDefinition 屬性為 false。

範例

下列程式碼範例示範如何使用 DefineMethod 在動態類型上設定建構函式的特定簽章和屬性，以及傳回對應 MethodBuilder MSIL 母體擴展的。

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
public interface class IMyInterface
{
   String^ HelloMethod( String^ parameter );
};

public ref class EmittedClass
{
public:
   // Because this method calls Activator::CreateInstance, 
   // it requires full trust. 
   [System::Security::Permissions::PermissionSetAttribute
    (System::Security::Permissions::SecurityAction::Demand, Name = "FullTrust")]
   static void Main()
   {
      Type^ myNestedClassType = CreateCallee( Thread::GetDomain() );
      
      // Create an instance of 'MyNestedClass'.
      IMyInterface^ myInterface = dynamic_cast<IMyInterface^>(Activator::CreateInstance( myNestedClassType ));
      Console::WriteLine( myInterface->HelloMethod( "Bill" ) );
   }

private:

   // Create the callee transient dynamic assembly.
   static Type^ CreateCallee( AppDomain^ myAppDomain )
   {
      AssemblyName^ myAssemblyName = gcnew AssemblyName;
      myAssemblyName->Name = "EmittedClass";
      
      // Create the callee dynamic assembly.
      AssemblyBuilder^ myAssembly = myAppDomain->DefineDynamicAssembly( myAssemblyName, AssemblyBuilderAccess::Run );
      
      // Create a dynamic module in the callee assembly.
      ModuleBuilder^ myModule = myAssembly->DefineDynamicModule( "EmittedModule" );
      
      // Define a public class named "MyHelloWorld".
      TypeBuilder^ myHelloWorldType = myModule->DefineType( "MyHelloWorld", TypeAttributes::Public );
      
      // Define a public nested class named 'MyNestedClass'.
      array<Type^>^temp0 = {IMyInterface::typeid};
      TypeBuilder^ myNestedClassType = myHelloWorldType->DefineNestedType( "MyNestedClass", TypeAttributes::NestedPublic, EmittedClass::typeid, temp0 );
      
      // Implement 'IMyInterface' interface.
      myNestedClassType->AddInterfaceImplementation( IMyInterface::typeid );
      
      // Define 'HelloMethod' of 'IMyInterface'.
      array<Type^>^temp1 = {String::typeid};
      MethodBuilder^ myHelloMethod = myNestedClassType->DefineMethod( "HelloMethod", static_cast<MethodAttributes>(MethodAttributes::Public | MethodAttributes::Virtual), String::typeid, temp1 );
      
      // Generate IL for 'GetGreeting' method.
      ILGenerator^ myMethodIL = myHelloMethod->GetILGenerator();
      myMethodIL->Emit( OpCodes::Ldstr, "Hi! " );
      myMethodIL->Emit( OpCodes::Ldarg_1 );
      array<Type^>^temp2 = {String::typeid,String::typeid};
      MethodInfo^ infoMethod = String::typeid->GetMethod( "Concat", temp2 );
      myMethodIL->Emit( OpCodes::Call, infoMethod );
      myMethodIL->Emit( OpCodes::Ret );
      MethodInfo^ myHelloMethodInfo = IMyInterface::typeid->GetMethod( "HelloMethod" );
      
      // Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType->DefineMethodOverride( myHelloMethod, myHelloMethodInfo );
      
      // Create 'MyHelloWorld' type.
      Type^ myType = myHelloWorldType->CreateType();
      
      // Create 'MyNestedClass' type.
      return myNestedClassType->CreateType();
   }
};

int main()
{
   EmittedClass::Main();
}

using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;
using System.Security.Permissions;

public interface IMyInterface
{
   String HelloMethod(String parameter);
}

public class Example
{
   public static void Main()
   {
      Type myNestedClassType = CreateCallee(Thread.GetDomain());
      // Cretae an instance of 'MyNestedClass'.
      IMyInterface myInterface =
         (IMyInterface)Activator.CreateInstance(myNestedClassType);
      Console.WriteLine(myInterface.HelloMethod("Bill"));
   }

   // Create the callee transient dynamic assembly.
   private static Type CreateCallee(AppDomain myAppDomain)
   {
      AssemblyName myAssemblyName = new AssemblyName();
      myAssemblyName.Name = "Example";
      // Create the callee dynamic assembly.
      AssemblyBuilder myAssembly =
         myAppDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run);
      // Create a dynamic module in the callee assembly.
      ModuleBuilder myModule = myAssembly.DefineDynamicModule("EmittedModule");
      // Define a public class named "MyHelloWorld".
      TypeBuilder myHelloWorldType =
         myModule.DefineType("MyHelloWorld", TypeAttributes.Public);
      // Define a public nested class named 'MyNestedClass'.
      TypeBuilder myNestedClassType =
         myHelloWorldType.DefineNestedType("MyNestedClass",
            TypeAttributes.NestedPublic, typeof(Example),
            new Type[]{typeof(IMyInterface)});
      // Implement 'IMyInterface' interface.
      myNestedClassType.AddInterfaceImplementation(typeof(IMyInterface));
      // Define 'HelloMethod' of 'IMyInterface'.
      MethodBuilder myHelloMethod =
         myNestedClassType.DefineMethod("HelloMethod",
            MethodAttributes.Public | MethodAttributes.Virtual,
            typeof(String), new Type[]{typeof(String)});
      // Generate IL for 'GetGreeting' method.
      ILGenerator myMethodIL = myHelloMethod.GetILGenerator();
      myMethodIL.Emit(OpCodes.Ldstr, "Hi! ");
      myMethodIL.Emit(OpCodes.Ldarg_1);
      MethodInfo infoMethod =
         typeof(String).GetMethod("Concat",new Type[]{typeof(string),typeof(string)});
      myMethodIL.Emit(OpCodes.Call, infoMethod);
      myMethodIL.Emit(OpCodes.Ret);

      MethodInfo myHelloMethodInfo =
         typeof(IMyInterface).GetMethod("HelloMethod");
      // Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType.DefineMethodOverride(myHelloMethod, myHelloMethodInfo);
      // Create 'MyHelloWorld' type.
      Type myType = myHelloWorldType.CreateType();
      // Create 'MyNestedClass' type.
      return myNestedClassType.CreateType();
   }
}

Imports System.Threading
Imports System.Reflection
Imports System.Reflection.Emit
Imports System.Security.Permissions

Public Interface IMyInterface
   Function HelloMethod(parameter As String) As String
End Interface 'IMyInterface

Public Class Example
   <PermissionSetAttribute(SecurityAction.Demand, Name:="FullTrust")> _
   Public Shared Sub Main()
      Dim myNestedClassType As Type = CreateCallee(Thread.GetDomain())
      ' Create an instance of 'MyNestedClass'.
      Dim myInterface As IMyInterface = _
            CType(Activator.CreateInstance(myNestedClassType), IMyInterface)
      Console.WriteLine(myInterface.HelloMethod("Bill"))
   End Sub

   ' Create the callee transient dynamic assembly.
   Private Shared Function CreateCallee(myAppDomain As AppDomain) As Type
      Dim myAssemblyName As New AssemblyName()
      myAssemblyName.Name = "Example"
      ' Create the callee dynamic assembly.
      Dim myAssembly As AssemblyBuilder = _
               myAppDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run)
      ' Create a dynamic module in the callee assembly.
      Dim myModule As ModuleBuilder = myAssembly.DefineDynamicModule("EmittedModule")
      ' Define a public class named "MyHelloWorld".
      Dim myHelloWorldType As TypeBuilder = _
               myModule.DefineType("MyHelloWorld", TypeAttributes.Public)
      ' Define a public nested class named 'MyNestedClass'.
      Dim myNestedClassType As TypeBuilder = _
               myHelloWorldType.DefineNestedType("MyNestedClass", TypeAttributes.NestedPublic, _
               GetType(Example), New Type() {GetType(IMyInterface)})
      ' Implement 'IMyInterface' interface.
      myNestedClassType.AddInterfaceImplementation(GetType(IMyInterface))
      ' Define 'HelloMethod' of 'IMyInterface'.
      Dim myHelloMethod As MethodBuilder = _
               myNestedClassType.DefineMethod("HelloMethod", MethodAttributes.Public Or _
               MethodAttributes.Virtual, GetType(String), New Type() {GetType(String)})
      ' Generate IL for 'GetGreeting' method.
      Dim myMethodIL As ILGenerator = myHelloMethod.GetILGenerator()
      myMethodIL.Emit(OpCodes.Ldstr, "Hi! ")
      myMethodIL.Emit(OpCodes.Ldarg_1)
      Dim infoMethod As MethodInfo = _
               GetType(String).GetMethod("Concat", New Type() {GetType(String), GetType(String)})
      myMethodIL.Emit(OpCodes.Call, infoMethod)
      myMethodIL.Emit(OpCodes.Ret)

      Dim myHelloMethodInfo As MethodInfo = GetType(IMyInterface).GetMethod("HelloMethod")
      ' Implement 'HelloMethod' of 'IMyInterface'.
      myNestedClassType.DefineMethodOverride(myHelloMethod, myHelloMethodInfo)
      ' Create 'MyHelloWorld' type.
      Dim myType As Type = myHelloWorldType.CreateType()
      ' Create 'MyNestedClass' type.
      Return myNestedClassType.CreateType()
   End Function 'CreateCallee
End Class

適用於

TypeBuilder.DefineMethod 方法

定義

多載

DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[], Type[], Type[], Type[][], Type[][])

參數

傳回

例外狀況

備註

適用於

DefineMethod(String, MethodAttributes, CallingConventions, Type, Type[])

參數

傳回

例外狀況

範例

適用於

DefineMethod(String, MethodAttributes, CallingConventions)

參數

傳回

例外狀況

備註

另請參閱

適用於

DefineMethod(String, MethodAttributes)

參數

傳回

例外狀況

範例

備註

另請參閱

適用於

DefineMethod(String, MethodAttributes, Type, Type[])

參數

傳回

例外狀況

範例

適用於

意見反應

其他資源