ILGenerator.EmitCalli メソッド

オーバーロードの一覧

間接的な呼び出しに対してアンマネージ呼び出し規約を指定して、MSIL (Microsoft Intermediate Language) ストリームに Calli 命令を書き込みます。

[Visual Basic] Overloads Public Sub EmitCalli(OpCode, CallingConvention, Type, Type())

[C#] public void EmitCalli(OpCode, CallingConvention, Type, Type[]);

[C++] public: void EmitCalli(OpCode, CallingConvention, Type*, Type[]);

[JScript] public function EmitCalli(OpCode, CallingConvention, Type, Type[]);

間接的な呼び出しに対してマネージ呼び出し規約を指定して、MSIL (Microsoft Intermediate Language) ストリームに Calli 命令を書き込みます。

[Visual Basic] Overloads Public Sub EmitCalli(OpCode, CallingConventions, Type, Type(), Type())

[C#] public void EmitCalli(OpCode, CallingConventions, Type, Type[], Type[]);

[C++] public: void EmitCalli(OpCode, CallingConventions, Type*, Type[], Type[]);

[JScript] public function EmitCalli(OpCode, CallingConventions, Type, Type[], Type[]);

使用例

[Visual Basic, C#, C++] 次のコード例は、 EmitCalli メソッドを使用して、動的なクラスの外部にあるアンマネージ型のメソッドを呼び出す方法を示しています。

[Visual Basic, C#, C++] メモ   ここでは、EmitCalli のオーバーロード形式のうちの 1 つだけについて、使用例を示します。その他の例については、各オーバーロード形式のトピックを参照してください。

 
Dim myMthdBuilder As MethodBuilder = myTypeBuilder.DefineMethod("MyMethod", _
              MethodAttributes.Public, _
              returnType, mthdParamTypes)
      
' We will assume that an external unmanaged type "LegacyNumber" has been loaded, and
' that it has a method "ToString" which returns a string.

Dim unmanagedMthdMI As MethodInfo = Type.GetType("LegacyNumber").GetMethod("ToString")
Dim myMthdIL As ILGenerator = myMthdBuilder.GetILGenerator()
      
' Code to emit various IL opcodes here ...
' Load a reference to the specific object instance onto the stack.

myMthdIL.Emit(OpCodes.Ldc_I4, addrOfLegacyNumberObject)
myMthdIL.Emit(OpCodes.Ldobj, Type.GetType("LegacyNumber"))
      
' Make the call to the unmanaged type method, telling it that the method is
' the member of a specific instance, to expect a string 
' as a return value, and that there are no explicit parameters.

myMthdIL.EmitCalli(OpCodes.Calli, System.Runtime.InteropServices.CallingConvention.ThisCall, _
            GetType(String), New Type() {})

    ' More IL code emission here ...

[C#] 
MethodBuilder myMthdBuilder = myTypeBuilder.DefineMethod("MyMethod", 
                  MethodAttributes.Public,
                  returnType, mthdParamTypes);
                            
// We will assume that an external unmanaged type "LegacyNumber" has been loaded, and
// that it has a method "ToString" which returns a string.
 
MethodInfo unmanagedMthdMI = Type.GetType("LegacyNumber").GetMethod("ToString");
ILGenerator myMthdIL = myMthdBuilder.GetILGenerator();

// Code to emit various IL opcodes here ...

// Load a reference to the specific object instance onto the stack.

myMthdIL.Emit(OpCodes.Ldc_I4, addrOfLegacyNumberObject);
myMthdIL.Emit(OpCodes.Ldobj, Type.GetType("LegacyNumber"));

// Make the call to the unmanaged type method, telling it that the method is
// the member of a specific instance, to expect a string 
// as a return value, and that there are no explicit parameters.
myMthdIL.EmitCalli(OpCodes.Calli, 
           System.Runtime.InteropServices.CallingConvention.ThisCall,
               typeof(string),
           new Type[] {});

// More IL code emission here ...


[C++] 
MethodBuilder*  myMthdBuilder = myTypeBuilder->DefineMethod(S"MyMethod",
   MethodAttributes::Public,
   returnType, mthdParamTypes);

// We will assume that an external unmanaged type "LegacyNumber" has been loaded, and
// that it has a method "ToString" which returns a String.

MethodInfo*  unmanagedMthdMI = Type::GetType(S"LegacyNumber")->GetMethod(S"ToString");
ILGenerator*  myMthdIL = myMthdBuilder->GetILGenerator();

// Code to emit various IL opcodes here ...

// Load a reference to the specific Object instance onto the stack.

myMthdIL->Emit(OpCodes::Ldc_I4, addrOfLegacyNumberObject);
myMthdIL->Emit(OpCodes::Ldobj, Type::GetType(S"LegacyNumber"));

// Make the call to the unmanaged type method, telling it that the method is
// the member of a specific instance, to expect a String
// as a return value, and that there are no explicit parameters.
myMthdIL->EmitCalli(OpCodes::Calli,
   System::Runtime::InteropServices::CallingConvention::ThisCall,
   __typeof(String),
   new Type*[0]);

// More IL code emission here ...

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参照

ILGenerator クラス | ILGenerator メンバ | System.Reflection.Emit 名前空間