C# MetadataBuilder.AddMethodDefinition方法代码示例

        public void SetCapacity()
        {
            var builder = new MetadataBuilder();

            builder.GetOrAddString("11111");
            builder.GetOrAddGuid(Guid.NewGuid());
            builder.GetOrAddBlobUTF8("2222");
            builder.GetOrAddUserString("3333");

            builder.AddMethodDefinition(0, 0, default(StringHandle), default(BlobHandle), 0, default(ParameterHandle));
            builder.AddMethodDefinition(0, 0, default(StringHandle), default(BlobHandle), 0, default(ParameterHandle));
            builder.AddMethodDefinition(0, 0, default(StringHandle), default(BlobHandle), 0, default(ParameterHandle));

            builder.SetCapacity(TableIndex.MethodDef, 0);
            builder.SetCapacity(TableIndex.MethodDef, 1);
            builder.SetCapacity(TableIndex.MethodDef, 1000);
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.SetCapacity(TableIndex.MethodDef, -1));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.SetCapacity((TableIndex)0xff, 10));

            builder.SetCapacity(HeapIndex.String, 3);
            builder.SetCapacity(HeapIndex.String, 1000);
            builder.SetCapacity(HeapIndex.Blob, 3);
            builder.SetCapacity(HeapIndex.Blob, 1000);
            builder.SetCapacity(HeapIndex.Guid, 3);
            builder.SetCapacity(HeapIndex.Guid, 1000);
            builder.SetCapacity(HeapIndex.UserString, 3);
            builder.SetCapacity(HeapIndex.UserString, 1000);
            builder.SetCapacity(HeapIndex.String, 0);
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.SetCapacity(HeapIndex.String, -1));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.SetCapacity((HeapIndex)0xff, 10));
        }

        public void Add()
        {
            var builder = new MetadataBuilder();

            builder.AddModule(default(Int32), default(StringHandle), default(GuidHandle), default(GuidHandle), default(GuidHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Module]);

            builder.AddAssembly(default(StringHandle), default(Version), default(StringHandle), default(BlobHandle), default(AssemblyFlags), default(AssemblyHashAlgorithm));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Assembly]);

            var assemblyReference = builder.AddAssemblyReference(default(StringHandle), default(Version), default(StringHandle), default(BlobHandle), default(AssemblyFlags), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.AssemblyRef]);
            Assert.Equal(1, MetadataTokens.GetRowNumber(assemblyReference));

            var typeDefinition = builder.AddTypeDefinition(default(TypeAttributes), default(StringHandle), default(StringHandle), default(EntityHandle), default(FieldDefinitionHandle), default(MethodDefinitionHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.TypeDef]);
            Assert.Equal(1, MetadataTokens.GetRowNumber(typeDefinition));

            builder.AddTypeLayout(default(TypeDefinitionHandle), default(UInt16), default(UInt32));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.ClassLayout]);

            builder.AddInterfaceImplementation(MetadataTokens.TypeDefinitionHandle(1), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.InterfaceImpl]);

            builder.AddNestedType(default(TypeDefinitionHandle), default(TypeDefinitionHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.NestedClass]);

            var typeReference = builder.AddTypeReference(EntityHandle.ModuleDefinition, default(StringHandle), default(StringHandle));
            Assert.Equal(1, MetadataTokens.GetRowNumber(typeReference));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.TypeRef]);

            builder.AddTypeSpecification(default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.TypeSpec]);

            builder.AddStandaloneSignature(default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.StandAloneSig]);

            builder.AddProperty(default(PropertyAttributes), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Property]);

            builder.AddPropertyMap(default(TypeDefinitionHandle), default(PropertyDefinitionHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.PropertyMap]);

            builder.AddEvent(default(EventAttributes), default(StringHandle), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Event]);

            builder.AddEventMap(default(TypeDefinitionHandle), default(EventDefinitionHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.EventMap]);

            builder.AddConstant(MetadataTokens.FieldDefinitionHandle(1), default(Object));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Constant]);

            builder.AddMethodSemantics(MetadataTokens.EventDefinitionHandle(1), default(UInt16), default(MethodDefinitionHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.MethodSemantics]);

            builder.AddCustomAttribute(MetadataTokens.TypeDefinitionHandle(1), MetadataTokens.MethodDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.CustomAttribute]);

            builder.AddMethodSpecification(MetadataTokens.MethodDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.MethodSpec]);

            builder.AddModuleReference(default(StringHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.ModuleRef]);

            builder.AddParameter(default(ParameterAttributes), default(StringHandle), default(Int32));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Param]);

            var genericParameter = builder.AddGenericParameter(MetadataTokens.MethodDefinitionHandle(1), default(GenericParameterAttributes), default(StringHandle), default(Int32));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.GenericParam]);
            Assert.Equal(1, MetadataTokens.GetRowNumber(genericParameter));

            builder.AddGenericParameterConstraint(default(GenericParameterHandle), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.GenericParamConstraint]);

            builder.AddFieldDefinition(default(FieldAttributes), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.Field]);

            builder.AddFieldLayout(default(FieldDefinitionHandle), default(Int32));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.FieldLayout]);

            builder.AddMarshallingDescriptor(MetadataTokens.FieldDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.FieldMarshal]);

            builder.AddFieldRelativeVirtualAddress(default(FieldDefinitionHandle), default(Int32));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.FieldRva]);

            var methodDefinition = builder.AddMethodDefinition(default(MethodAttributes), default(MethodImplAttributes), default(StringHandle), default(BlobHandle), default(Int32), default(ParameterHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.MethodDef]);
            Assert.Equal(1, MetadataTokens.GetRowNumber(methodDefinition));

            builder.AddMethodImport(MetadataTokens.MethodDefinitionHandle(1), default(MethodImportAttributes), default(StringHandle), default(ModuleReferenceHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.ImplMap]);

            builder.AddMethodImplementation(default(TypeDefinitionHandle), MetadataTokens.MethodDefinitionHandle(1), MetadataTokens.MethodDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.MethodImpl]);

            var memberReference = builder.AddMemberReference(MetadataTokens.TypeDefinitionHandle(1), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCounts()[(int)TableIndex.MemberRef]);
            Assert.Equal(1, MetadataTokens.GetRowNumber(memberReference));

//.........这里部分代码省略.........

        public void Add()
        {
            var builder = new MetadataBuilder();

            builder.AddModule(default(int), default(StringHandle), default(GuidHandle), default(GuidHandle), default(GuidHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Module));

            builder.AddAssembly(default(StringHandle), new Version(0, 0, 0, 0), default(StringHandle), default(BlobHandle), default(AssemblyFlags), default(AssemblyHashAlgorithm));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Assembly));

            var assemblyReference = builder.AddAssemblyReference(default(StringHandle), new Version(0, 0, 0, 0), default(StringHandle), default(BlobHandle), default(AssemblyFlags), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.AssemblyRef));
            Assert.Equal(1, MetadataTokens.GetRowNumber(assemblyReference));

            var typeDefinition = builder.AddTypeDefinition(default(TypeAttributes), default(StringHandle), default(StringHandle), default(EntityHandle), default(FieldDefinitionHandle), default(MethodDefinitionHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.TypeDef));
            Assert.Equal(1, MetadataTokens.GetRowNumber(typeDefinition));

            builder.AddTypeLayout(default(TypeDefinitionHandle), default(ushort), default(uint));
            Assert.Equal(1, builder.GetRowCount(TableIndex.ClassLayout));

            builder.AddInterfaceImplementation(MetadataTokens.TypeDefinitionHandle(1), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCount(TableIndex.InterfaceImpl));

            builder.AddNestedType(default(TypeDefinitionHandle), default(TypeDefinitionHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.NestedClass));

            var typeReference = builder.AddTypeReference(EntityHandle.ModuleDefinition, default(StringHandle), default(StringHandle));
            Assert.Equal(1, MetadataTokens.GetRowNumber(typeReference));
            Assert.Equal(1, builder.GetRowCount(TableIndex.TypeRef));

            builder.AddTypeSpecification(default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.TypeSpec));

            builder.AddStandaloneSignature(default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.StandAloneSig));

            builder.AddProperty(default(PropertyAttributes), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Property));

            builder.AddPropertyMap(default(TypeDefinitionHandle), default(PropertyDefinitionHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.PropertyMap));

            builder.AddEvent(default(EventAttributes), default(StringHandle), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Event));

            builder.AddEventMap(default(TypeDefinitionHandle), default(EventDefinitionHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.EventMap));

            builder.AddConstant(MetadataTokens.FieldDefinitionHandle(1), default(object));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Constant));

            builder.AddMethodSemantics(MetadataTokens.EventDefinitionHandle(1), default(ushort), default(MethodDefinitionHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.MethodSemantics));

            builder.AddCustomAttribute(MetadataTokens.TypeDefinitionHandle(1), MetadataTokens.MethodDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.CustomAttribute));

            builder.AddMethodSpecification(MetadataTokens.MethodDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.MethodSpec));

            builder.AddModuleReference(default(StringHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.ModuleRef));

            builder.AddParameter(default(ParameterAttributes), default(StringHandle), default(int));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Param));

            var genericParameter = builder.AddGenericParameter(MetadataTokens.MethodDefinitionHandle(1), default(GenericParameterAttributes), default(StringHandle), default(int));
            Assert.Equal(1, builder.GetRowCount(TableIndex.GenericParam));
            Assert.Equal(1, MetadataTokens.GetRowNumber(genericParameter));

            builder.AddGenericParameterConstraint(default(GenericParameterHandle), MetadataTokens.TypeDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCount(TableIndex.GenericParamConstraint));

            builder.AddFieldDefinition(default(FieldAttributes), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.Field));

            builder.AddFieldLayout(default(FieldDefinitionHandle), default(int));
            Assert.Equal(1, builder.GetRowCount(TableIndex.FieldLayout));

            builder.AddMarshallingDescriptor(MetadataTokens.FieldDefinitionHandle(1), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.FieldMarshal));

            builder.AddFieldRelativeVirtualAddress(default(FieldDefinitionHandle), default(int));
            Assert.Equal(1, builder.GetRowCount(TableIndex.FieldRva));

            var methodDefinition = builder.AddMethodDefinition(default(MethodAttributes), default(MethodImplAttributes), default(StringHandle), default(BlobHandle), default(int), default(ParameterHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.MethodDef));
            Assert.Equal(1, MetadataTokens.GetRowNumber(methodDefinition));

            builder.AddMethodImport(MetadataTokens.MethodDefinitionHandle(1), default(MethodImportAttributes), default(StringHandle), default(ModuleReferenceHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.ImplMap));

            builder.AddMethodImplementation(default(TypeDefinitionHandle), MetadataTokens.MethodDefinitionHandle(1), MetadataTokens.MethodDefinitionHandle(1));
            Assert.Equal(1, builder.GetRowCount(TableIndex.MethodImpl));

            var memberReference = builder.AddMemberReference(MetadataTokens.TypeDefinitionHandle(1), default(StringHandle), default(BlobHandle));
            Assert.Equal(1, builder.GetRowCount(TableIndex.MemberRef));
            Assert.Equal(1, MetadataTokens.GetRowNumber(memberReference));

//.........这里部分代码省略.........

        public void Add_BadValues()
        {
            var builder = new MetadataBuilder();

            builder.AddAssembly(default(StringHandle), new Version(0, 0, 0, 0), default(StringHandle), default(BlobHandle), (AssemblyFlags)(-1), (AssemblyHashAlgorithm)(-1));
            builder.AddAssemblyReference(default(StringHandle), new Version(0, 0, 0, 0), default(StringHandle), default(BlobHandle), (AssemblyFlags)(-1), default(BlobHandle));
            builder.AddTypeDefinition((TypeAttributes)(-1), default(StringHandle), default(StringHandle), default(TypeDefinitionHandle), default(FieldDefinitionHandle), default(MethodDefinitionHandle));
            builder.AddProperty((PropertyAttributes)(-1), default(StringHandle), default(BlobHandle));
            builder.AddEvent((EventAttributes)(-1), default(StringHandle), default(TypeDefinitionHandle));
            builder.AddMethodSemantics(default(EventDefinitionHandle), (MethodSemanticsAttributes)(-1), default(MethodDefinitionHandle));
            builder.AddParameter((ParameterAttributes)(-1), default(StringHandle), 0);
            builder.AddGenericParameter(default(TypeDefinitionHandle), (GenericParameterAttributes)(-1), default(StringHandle), 0);
            builder.AddFieldDefinition((FieldAttributes)(-1), default(StringHandle), default(BlobHandle));
            builder.AddMethodDefinition((MethodAttributes)(-1), (MethodImplAttributes)(-1), default(StringHandle), default(BlobHandle), -1, default(ParameterHandle));
            builder.AddMethodImport(default(MethodDefinitionHandle), (MethodImportAttributes)(-1), default(StringHandle), default(ModuleReferenceHandle));
            builder.AddManifestResource((ManifestResourceAttributes)(-1), default(StringHandle), default(AssemblyFileHandle), 0);
            builder.AddExportedType((TypeAttributes)(-1), default(StringHandle), default(StringHandle), default(AssemblyFileHandle), 0);
            builder.AddDeclarativeSecurityAttribute(default(TypeDefinitionHandle), (DeclarativeSecurityAction)(-1), default(BlobHandle));
            builder.AddEncLogEntry(default(TypeDefinitionHandle), (EditAndContinueOperation)(-1));
            builder.AddLocalVariable((LocalVariableAttributes)(-1), 0, default(StringHandle));
        }

        public void Add_ArgumentErrors()
        {
            var builder = new MetadataBuilder();

            var badHandleKind = CustomAttributeHandle.FromRowId(1);
            
            Assert.Throws<ArgumentNullException>(() => builder.AddAssembly(default(StringHandle), null, default(StringHandle), default(BlobHandle), 0, 0));
            Assert.Throws<ArgumentNullException>(() => builder.AddAssemblyReference(default(StringHandle), null, default(StringHandle), default(BlobHandle), 0, default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddTypeDefinition(0, default(StringHandle), default(StringHandle), badHandleKind, default(FieldDefinitionHandle), default(MethodDefinitionHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddInterfaceImplementation(default(TypeDefinitionHandle), badHandleKind));
            Assert.Throws<ArgumentException>(() => builder.AddTypeReference(badHandleKind, default(StringHandle), default(StringHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddEvent(0, default(StringHandle), badHandleKind));
            Assert.Throws<ArgumentException>(() => builder.AddConstant(badHandleKind, 0));
            Assert.Throws<ArgumentException>(() => builder.AddMethodSemantics(badHandleKind, 0, default(MethodDefinitionHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddCustomAttribute(badHandleKind, default(MethodDefinitionHandle), default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddCustomAttribute(default(TypeDefinitionHandle), badHandleKind, default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddMethodSpecification(badHandleKind, default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddGenericParameter(badHandleKind, 0, default(StringHandle), 0));
            Assert.Throws<ArgumentException>(() => builder.AddGenericParameterConstraint(default(GenericParameterHandle), badHandleKind));
            Assert.Throws<ArgumentException>(() => builder.AddMarshallingDescriptor(badHandleKind, default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddMethodImplementation(default(TypeDefinitionHandle), badHandleKind, default(MethodDefinitionHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddMethodImplementation(default(TypeDefinitionHandle), default(MethodDefinitionHandle), badHandleKind));
            Assert.Throws<ArgumentException>(() => builder.AddMemberReference(badHandleKind, default(StringHandle), default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddManifestResource(0, default(StringHandle), badHandleKind, 0));
            Assert.Throws<ArgumentException>(() => builder.AddExportedType(0, default(StringHandle), default(StringHandle), badHandleKind, 0));
            Assert.Throws<ArgumentException>(() => builder.AddDeclarativeSecurityAttribute(badHandleKind, 0, default(BlobHandle)));
            Assert.Throws<ArgumentException>(() => builder.AddCustomDebugInformation(badHandleKind, default(GuidHandle), default(BlobHandle)));

            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddModule(-1, default(StringHandle), default(GuidHandle), default(GuidHandle), default(GuidHandle)));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddModule(ushort.MaxValue + 1, default(StringHandle), default(GuidHandle), default(GuidHandle), default(GuidHandle)));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddParameter(0, default(StringHandle), -1));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddGenericParameter(default(TypeDefinitionHandle), 0, default(StringHandle), -1));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddFieldRelativeVirtualAddress(default(FieldDefinitionHandle), -1));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddMethodDefinition(0, 0, default(StringHandle), default(BlobHandle), -2, default(ParameterHandle)));
            Assert.Throws<ArgumentOutOfRangeException>(() => builder.AddLocalVariable(0, -1, default(StringHandle)));
        }

//.........这里部分代码省略.........

            //
            // Program::.ctor
            //
            int ctorBodyOffset;
            il = new InstructionEncoder(codeBuilder);

            // ldarg.0
            il.LoadArgument(0);

            // call instance void [mscorlib]System.Object::.ctor()
            il.Call(objectCtorMemberRef);

            // ret
            il.OpCode(ILOpCode.Ret);

            methodBodies.AddMethodBody().WriteInstructions(codeBuilder, out ctorBodyOffset);
            codeBuilder.Clear();

            //
            // Program::Main
            //
            int mainBodyOffset;
            il = new InstructionEncoder(codeBuilder, branchBuilder);
            var endLabel = il.DefineLabel();

            // .try
            int tryOffset = il.Offset;

            //   ldstr "hello"
            il.LoadString(metadata.GetOrAddUserString("hello"));

            //   call void [mscorlib]System.Console::WriteLine(string)
            il.Call(consoleWriteLineMemberRef);

            //   leave.s END
            il.Branch(ILOpCode.Leave, endLabel);

            // .finally
            int handlerOffset = il.Offset;

            //   ldstr "world"
            il.LoadString(metadata.GetOrAddUserString("world"));

            //   call void [mscorlib]System.Console::WriteLine(string)
            il.Call(consoleWriteLineMemberRef);

            // .endfinally
            il.OpCode(ILOpCode.Endfinally);
            int handlerEnd = il.Offset;

            // END:
            il.MarkLabel(endLabel);

            // ret
            il.OpCode(ILOpCode.Ret);

            var body = methodBodies.AddMethodBody(exceptionRegionCount: 1);
            var eh = body.WriteInstructions(codeBuilder, branchBuilder, out mainBodyOffset);
            eh.StartRegions();
            eh.AddFinally(tryOffset, handlerOffset - tryOffset, handlerOffset, handlerEnd - handlerOffset);
            eh.EndRegions();

            codeBuilder.Clear();
            branchBuilder.Clear();

            var mainMethodDef = metadata.AddMethodDefinition(
                MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.HideBySig,
                MethodImplAttributes.IL | MethodImplAttributes.Managed,
                metadata.GetOrAddString("Main"),
                metadata.GetOrAddBlob(mainSignature),
                mainBodyOffset,
                paramList: default(ParameterHandle));

            var ctorDef = metadata.AddMethodDefinition(
                MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.SpecialName | MethodAttributes.RTSpecialName,
                MethodImplAttributes.IL | MethodImplAttributes.Managed,
                metadata.GetOrAddString(".ctor"),
                parameterlessCtorBlobIndex,
                ctorBodyOffset,
                paramList: default(ParameterHandle));

            metadata.AddTypeDefinition(
                default(TypeAttributes),
                default(StringHandle),
                metadata.GetOrAddString("<Module>"),
                baseType: default(EntityHandle),
                fieldList: MetadataTokens.FieldDefinitionHandle(1),
                methodList: mainMethodDef);

            metadata.AddTypeDefinition(
                TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.AutoLayout | TypeAttributes.BeforeFieldInit,
                metadata.GetOrAddString("ConsoleApplication"),
                metadata.GetOrAddString("Program"),
                systemObjectTypeRef,
                fieldList: MetadataTokens.FieldDefinitionHandle(1),
                methodList: mainMethodDef);

            return mainMethodDef;
        }

//.........这里部分代码省略.........
            var strignBuilderTypeRef = metadata.AddTypeReference(mscorlibAssemblyRef, metadata.GetOrAddString("System.Text"), metadata.GetOrAddString("StringBuilder"));
            var typeTypeRef = metadata.AddTypeReference(mscorlibAssemblyRef, metadata.GetOrAddString("System"), metadata.GetOrAddString("Type"));
            var int32TypeRef = metadata.AddTypeReference(mscorlibAssemblyRef, metadata.GetOrAddString("System"), metadata.GetOrAddString("Int32"));
            var runtimeTypeHandleRef = metadata.AddTypeReference(mscorlibAssemblyRef, metadata.GetOrAddString("System"), metadata.GetOrAddString("RuntimeTypeHandle"));
            var invalidOperationExceptionTypeRef = metadata.AddTypeReference(mscorlibAssemblyRef, metadata.GetOrAddString("System"), metadata.GetOrAddString("InvalidOperationException"));

            // TypeDefs:

            metadata.AddTypeDefinition(
               default(TypeAttributes),
               default(StringHandle),
               metadata.GetOrAddString("<Module>"),
               baseType: default(EntityHandle),
               fieldList: MetadataTokens.FieldDefinitionHandle(1),
               methodList: MetadataTokens.MethodDefinitionHandle(1));

            var baseClassTypeDef = metadata.AddTypeDefinition(
                TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.AutoLayout | TypeAttributes.BeforeFieldInit | TypeAttributes.Abstract,
                metadata.GetOrAddString("Lib"),
                metadata.GetOrAddString("BaseClass"),
                systemObjectTypeRef,
                fieldList: MetadataTokens.FieldDefinitionHandle(1),
                methodList: MetadataTokens.MethodDefinitionHandle(1));

            var derivedClassTypeDef = metadata.AddTypeDefinition(
                TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.AutoLayout | TypeAttributes.BeforeFieldInit,
                metadata.GetOrAddString("Lib"),
                metadata.GetOrAddString("DerivedClass"),
                baseClassTypeDef,
                fieldList: MetadataTokens.FieldDefinitionHandle(4),
                methodList: MetadataTokens.MethodDefinitionHandle(1));

            // FieldDefs:

            // Field1
            var baseClassNumberFieldDef = metadata.AddFieldDefinition(
                FieldAttributes.Private,
                metadata.GetOrAddString("_number"),
                metadata.GetOrAddBlob(BuildSignature(e => e.FieldSignature().Int32())));

            // Field2
            var baseClassNegativeFieldDef = metadata.AddFieldDefinition(
                FieldAttributes.Assembly,
                metadata.GetOrAddString("negative"),
                metadata.GetOrAddBlob(BuildSignature(e => e.FieldSignature().Boolean())));

            // Field3
            var derivedClassSumCacheFieldDef = metadata.AddFieldDefinition(
                FieldAttributes.Assembly,
                metadata.GetOrAddString("_sumCache"),
                metadata.GetOrAddBlob(BuildSignature(e =>
                {
                    var inst = e.FieldSignature().GenericInstantiation(isValueType: false, typeRefDefSpec: dictionaryTypeRef, genericArgumentCount: 2);
                    inst.AddArgument().Int32();
                    inst.AddArgument().Object();
                })));

            // Field4
            var derivedClassCountFieldDef = metadata.AddFieldDefinition(
                FieldAttributes.Assembly,
                metadata.GetOrAddString("_count"),
                metadata.GetOrAddBlob(BuildSignature(e => e.FieldSignature().SZArray().Int32())));

            // Field5
            var derivedClassBCFieldDef = metadata.AddFieldDefinition(
              FieldAttributes.Assembly,
              metadata.GetOrAddString("_bc"),
              metadata.GetOrAddBlob(BuildSignature(e => e.FieldSignature().TypeDefOrRefOrSpec(isValueType: false, typeRefDefSpec: baseClassTypeDef))));

            var methodBodies = new MethodBodiesEncoder(ilBuilder);

            var buffer = new BlobBuilder();
            InstructionEncoder il;

            //
            // Foo
            //
            int fooBodyOffset;
            il = new InstructionEncoder(buffer);

            il.LoadString(metadata.GetOrAddUserString("asdsad"));
            il.OpCode(ILOpCode.Newobj);
            il.Token(invalidOperationExceptionTypeRef);
            il.OpCode(ILOpCode.Throw);

            methodBodies.AddMethodBody().WriteInstructions(buffer, out fooBodyOffset);
            buffer.Clear();

            // Method1
            var derivedClassFooMethodDef = metadata.AddMethodDefinition(
                MethodAttributes.PrivateScope | MethodAttributes.Private | MethodAttributes.HideBySig,
                MethodImplAttributes.IL,
                metadata.GetOrAddString("Foo"),
                metadata.GetOrAddBlob(BuildSignature(e =>
                    e.MethodSignature(isInstanceMethod: true).Parameters(0, returnType => returnType.Void(), parameters => parameters.EndParameters()))),
                fooBodyOffset,
                default(ParameterHandle));

            return default(MethodDefinitionHandle);
        }