C# CodeGenerator.EndIf方法代码示例

        internal void GenerateSupportedTypes(Type[] types, TypeBuilder serializerContractTypeBuilder)
        {
            ilg = new CodeGenerator(serializerContractTypeBuilder);
            ilg.BeginMethod(
                typeof(bool),
                "CanSerialize",
                new Type[] { typeof(Type) },
                new string[] { "type" },
                CodeGenerator.PublicOverrideMethodAttributes);
            var uniqueTypes = new HashSet<Type>();
            for (int i = 0; i < types.Length; i++)
            {
                Type type = types[i];

                if (type == null)
                    continue;
                if (!type.GetTypeInfo().IsPublic && !type.GetTypeInfo().IsNestedPublic)
                    continue;
                if (!uniqueTypes.Add(type))
                    continue;
                // DDB172141: Wrong generated CS for serializer of List<string> type
                if (type.GetTypeInfo().IsGenericType || type.GetTypeInfo().ContainsGenericParameters)
                    continue;
                ilg.Ldarg("type");
                ilg.Ldc(type);
                ilg.If(Cmp.EqualTo);
                {
                    ilg.Ldc(true);
                    ilg.GotoMethodEnd();
                }
                ilg.EndIf();
            }
            ilg.Ldc(false);
            ilg.GotoMethodEnd();
            ilg.EndMethod();
        }

        //GenerateGetSerializer(serializers, xmlMappings);
        private void GenerateGetSerializer(Dictionary<string, string> serializers, XmlMapping[] xmlMappings, TypeBuilder serializerContractTypeBuilder)
        {
            ilg = new CodeGenerator(serializerContractTypeBuilder);
            ilg.BeginMethod(
                typeof(XmlSerializer),
                "GetSerializer",
                new Type[] { typeof(Type) },
                new string[] { "type" },
                CodeGenerator.PublicOverrideMethodAttributes);

            for (int i = 0; i < xmlMappings.Length; i++)
            {
                if (xmlMappings[i] is XmlTypeMapping)
                {
                    Type type = xmlMappings[i].Accessor.Mapping.TypeDesc.Type;
                    if (type == null)
                        continue;
                    if (!type.GetTypeInfo().IsPublic && !type.GetTypeInfo().IsNestedPublic)
                        continue;
                    // DDB172141: Wrong generated CS for serializer of List<string> type
                    if (type.GetTypeInfo().IsGenericType || type.GetTypeInfo().ContainsGenericParameters)
                        continue;
                    ilg.Ldarg("type");
                    ilg.Ldc(type);
                    ilg.If(Cmp.EqualTo);
                    {
                        ConstructorInfo ctor = CreatedTypes[(string)serializers[xmlMappings[i].Key]].GetConstructor(
                            CodeGenerator.InstanceBindingFlags,
                            Array.Empty<Type>()
                            );
                        ilg.New(ctor);
                        ilg.Stloc(ilg.ReturnLocal);
                        ilg.Br(ilg.ReturnLabel);
                    }
                    ilg.EndIf();
                }
            }
            ilg.Load(null);
            ilg.Stloc(ilg.ReturnLocal);
            ilg.Br(ilg.ReturnLabel);
            ilg.MarkLabel(ilg.ReturnLabel);
            ilg.Ldloc(ilg.ReturnLocal);
            ilg.EndMethod();
        }

//.........这里部分代码省略.........
                WriteMemberEnd(attributeMembers);
                MethodInfo XmlReader_MoveToElement = typeof(XmlReader).GetMethod(
                    "MoveToElement",
                    CodeGenerator.InstanceBindingFlags,
                    null,
                    CodeGenerator.EmptyTypeArray,
                    null
                    );
                ilg.Ldarg(0);
                ilg.Call(XmlSerializationReader_get_Reader);
                ilg.Call(XmlReader_MoveToElement);
                ilg.Pop();
            }

            WriteMemberBegin(textOrArrayMembers);

            if (hasWrapperElement) {
                MethodInfo XmlReader_get_IsEmptyElement = typeof(XmlReader).GetMethod(
                    "get_IsEmptyElement",
                    CodeGenerator.InstanceBindingFlags,
                    null,
                    CodeGenerator.EmptyTypeArray,
                    null
                    );
                ilg.Ldarg(0);
                ilg.Call(XmlSerializationReader_get_Reader);
                ilg.Call(XmlReader_get_IsEmptyElement);
                ilg.If();
                {
                    MethodInfo XmlReader_Skip = typeof(XmlReader).GetMethod(
                        "Skip",
                        CodeGenerator.InstanceBindingFlags,
                        null,
                        CodeGenerator.EmptyTypeArray,
                        null
                        );
                    ilg.Ldarg(0);
                    ilg.Call(XmlSerializationReader_get_Reader);
                    ilg.Call(XmlReader_Skip);
                    ilg.Ldarg(0);
                    ilg.Call(XmlSerializationReader_get_Reader);
                    ilg.Call(XmlReader_MoveToContent);
                    ilg.Pop();
                    ilg.WhileContinue();
                }
                ilg.EndIf();
                MethodInfo XmlReader_ReadStartElement = typeof(XmlReader).GetMethod(
                    "ReadStartElement",
                    CodeGenerator.InstanceBindingFlags,
                    null,
                    CodeGenerator.EmptyTypeArray,
                    null
                    );
                ilg.Ldarg(0);
                ilg.Call(XmlSerializationReader_get_Reader);
                ilg.Call(XmlReader_ReadStartElement);
            }
            if (IsSequence(members)) {
                ilg.Ldc(0);
                ilg.Stloc(typeof(Int32), "state");
            }
            int loopIndex = WriteWhileNotLoopStart();

            string unknownNode = "UnknownNode((object)p, " + ExpectedElements(members) + ");";
            WriteMemberElements(members, unknownNode, unknownNode, anyElement, anyText);

            ilg.Ldarg(0);
            ilg.Call(XmlSerializationReader_get_Reader);
            ilg.Call(XmlReader_MoveToContent);
            ilg.Pop();
            WriteWhileLoopEnd(loopIndex);

            WriteMemberEnd(textOrArrayMembers);

            if (hasWrapperElement) {
                MethodInfo XmlSerializationReader_ReadEndElement = typeof(XmlSerializationReader).GetMethod(
                    "ReadEndElement",
                    CodeGenerator.InstanceBindingFlags,
                    null,
                    CodeGenerator.EmptyTypeArray,
                    null
                    );
                ilg.Ldarg(0);
                ilg.Call(XmlSerializationReader_ReadEndElement);


                WriteUnknownNode("UnknownNode", "null", element, true);

                ilg.Ldarg(0);
                ilg.Call(XmlSerializationReader_get_Reader);
                ilg.Call(XmlReader_MoveToContent);
                ilg.Pop();
                WriteWhileLoopEnd(wrapperLoopIndex);
            }

            ilg.Ldloc(ilg.GetLocal("p"));
            ilg.EndMethod();

            return methodName;
        }

        string WriteHashtable(EnumMapping mapping, string typeName, out MethodBuilder get_TableName) {
            get_TableName = null;

            CodeIdentifier.CheckValidIdentifier(typeName);
            string propName = MakeUnique(mapping, typeName + "Values");
            if (propName == null) return CodeIdentifier.GetCSharpName(typeName);
            string memberName = MakeUnique(mapping, "_" + propName);
            propName = CodeIdentifier.GetCSharpName(propName);

            FieldBuilder fieldBuilder = this.typeBuilder.DefineField(
                memberName,
                typeof(Hashtable),
                FieldAttributes.Private
                );

            PropertyBuilder propertyBuilder = this.typeBuilder.DefineProperty(
                propName,
                PropertyAttributes.None,
                CallingConventions.HasThis,
                typeof(Hashtable),
                null, null, null, null, null);

            ilg = new CodeGenerator(this.typeBuilder);
            ilg.BeginMethod(
                typeof(Hashtable),
                "get_" + propName,
                CodeGenerator.EmptyTypeArray,
                CodeGenerator.EmptyStringArray,
                MethodAttributes.Assembly | MethodAttributes.HideBySig | MethodAttributes.SpecialName);

            ilg.Ldarg(0);
            ilg.LoadMember(fieldBuilder);
            ilg.Load(null);
            ilg.If(Cmp.EqualTo);

            ConstructorInfo Hashtable_ctor = typeof(Hashtable).GetConstructor(
                CodeGenerator.InstanceBindingFlags,
                null,
                CodeGenerator.EmptyTypeArray,
                null
                );
            LocalBuilder hLoc = ilg.DeclareLocal(typeof(Hashtable), "h");
            ilg.New(Hashtable_ctor);
            ilg.Stloc(hLoc);

            ConstantMapping[] constants = mapping.Constants;
            MethodInfo Hashtable_Add = typeof(Hashtable).GetMethod(
                "Add",
                CodeGenerator.InstanceBindingFlags,
                null,
                new Type[] { typeof(Object), typeof(Object) },
                null
                );

            for (int i = 0; i < constants.Length; i++) {
                ilg.Ldloc(hLoc);
                ilg.Ldstr(constants[i].XmlName);
                ilg.Ldc(Enum.ToObject(mapping.TypeDesc.Type, constants[i].Value));
                ilg.ConvertValue(mapping.TypeDesc.Type, typeof(long));
                ilg.ConvertValue(typeof(long), typeof(Object));

                ilg.Call(Hashtable_Add);
            }

            ilg.Ldarg(0);
            ilg.Ldloc(hLoc);
            ilg.StoreMember(fieldBuilder);

            ilg.EndIf();

            ilg.Ldarg(0);
            ilg.LoadMember(fieldBuilder);

            get_TableName = ilg.EndMethod();
            propertyBuilder.SetGetMethod(get_TableName);

            return propName;
        }

        void WriteLiteralStructMethod(StructMapping structMapping) {
            string methodName = (string)MethodNames[structMapping];
            string typeName = structMapping.TypeDesc.CSharpName;
            ilg = new CodeGenerator(this.typeBuilder);
            List<Type> argTypes = new List<Type>();
            List<string> argNames = new List<string>();
            if (structMapping.TypeDesc.IsNullable) {
                argTypes.Add(typeof(Boolean));
                argNames.Add("isNullable");
            }
            argTypes.Add(typeof(Boolean));
            argNames.Add("checkType");
            ilg.BeginMethod(
                structMapping.TypeDesc.Type,
                GetMethodBuilder(methodName),
                argTypes.ToArray(),
                argNames.ToArray(),
                CodeGenerator.PrivateMethodAttributes);

            LocalBuilder locXsiType = ilg.DeclareLocal(typeof(XmlQualifiedName), "xsiType");
            LocalBuilder locIsNull = ilg.DeclareLocal(typeof(Boolean), "isNull");
            MethodInfo XmlSerializationReader_GetXsiType = typeof(XmlSerializationReader).GetMethod(
                "GetXsiType",
                CodeGenerator.InstanceBindingFlags,
                null,
                CodeGenerator.EmptyTypeArray,
                null
                );
            MethodInfo XmlSerializationReader_ReadNull = typeof(XmlSerializationReader).GetMethod(
                 "ReadNull",
                 CodeGenerator.InstanceBindingFlags,
                 null,
                 CodeGenerator.EmptyTypeArray,
                 null
                 );
            Label labelTrue = ilg.DefineLabel();
            Label labelEnd = ilg.DefineLabel();
            ilg.Ldarg("checkType");
            ilg.Brtrue(labelTrue);
            ilg.Load(null);
            ilg.Br_S(labelEnd);
            ilg.MarkLabel(labelTrue);
            ilg.Ldarg(0);
            ilg.Call(XmlSerializationReader_GetXsiType);
            ilg.MarkLabel(labelEnd);
            ilg.Stloc(locXsiType);
            ilg.Ldc(false);
            ilg.Stloc(locIsNull);
            if (structMapping.TypeDesc.IsNullable) {
                ilg.Ldarg("isNullable");
                ilg.If();
                {
                    ilg.Ldarg(0);
                    ilg.Call(XmlSerializationReader_ReadNull);
                    ilg.Stloc(locIsNull);
                }
                ilg.EndIf();
            }

            ilg.Ldarg("checkType");
            ilg.If(); // if (checkType)
            if (structMapping.TypeDesc.IsRoot) {
                ilg.Ldloc(locIsNull);
                ilg.If();
                ilg.Ldloc(locXsiType);
                ilg.Load(null);
                ilg.If(Cmp.NotEqualTo);
                MethodInfo XmlSerializationReader_ReadTypedNull = typeof(XmlSerializationReader).GetMethod(
                       "ReadTypedNull",
                       CodeGenerator.InstanceBindingFlags,
                       null,
                       new Type[] { locXsiType.LocalType },
                       null
                       );
                ilg.Ldarg(0);
                ilg.Ldloc(locXsiType);
                ilg.Call(XmlSerializationReader_ReadTypedNull);
                ilg.Stloc(ilg.ReturnLocal);
                ilg.Br(ilg.ReturnLabel);
                ilg.Else();
                if (structMapping.TypeDesc.IsValueType) {
                    throw CodeGenerator.NotSupported("Arg_NeverValueType");
                }
                else {
                    ilg.Load(null);
                    ilg.Stloc(ilg.ReturnLocal);
                    ilg.Br(ilg.ReturnLabel);
                }
                ilg.EndIf(); // if (xsiType != null)

                ilg.EndIf(); // if (isNull)
            }
            ilg.Ldloc(typeof(XmlQualifiedName), "xsiType");
            ilg.Load(null);
            ilg.Ceq();
            if (!structMapping.TypeDesc.IsRoot) {
                labelTrue = ilg.DefineLabel();
                labelEnd = ilg.DefineLabel();
                // xsiType == null
                ilg.Brtrue(labelTrue);
//.........这里部分代码省略.........

        void WriteNullableMethod(NullableMapping nullableMapping) {
            string methodName = (string)MethodNames[nullableMapping];
            ilg = new CodeGenerator(this.typeBuilder);
            ilg.BeginMethod(
                nullableMapping.TypeDesc.Type,
                GetMethodBuilder(methodName),
                new Type[] { typeof(Boolean) },
                new string[] { "checkType" },
                CodeGenerator.PrivateMethodAttributes);

            LocalBuilder oLoc = ilg.DeclareLocal(nullableMapping.TypeDesc.Type, "o");

            ilg.LoadAddress(oLoc);
            ilg.InitObj(nullableMapping.TypeDesc.Type);
            MethodInfo XmlSerializationReader_ReadNull = typeof(XmlSerializationReader).GetMethod(
                "ReadNull",
                CodeGenerator.InstanceBindingFlags,
                null,
                CodeGenerator.EmptyTypeArray,
                null);
            ilg.Ldarg(0);
            ilg.Call(XmlSerializationReader_ReadNull);
            ilg.If();
            {
                ilg.Ldloc(oLoc);
                ilg.Stloc(ilg.ReturnLocal);
                ilg.Br(ilg.ReturnLabel);
            }
            ilg.EndIf();

            ElementAccessor element = new ElementAccessor();
            element.Mapping = nullableMapping.BaseMapping;
            element.Any = false;
            element.IsNullable = nullableMapping.BaseMapping.TypeDesc.IsNullable;

            WriteElement("o", null, null, element, null, null, false, false, -1, -1);
            ilg.Ldloc(oLoc);
            ilg.Stloc(ilg.ReturnLocal);
            ilg.Br(ilg.ReturnLabel);

            ilg.MarkLabel(ilg.ReturnLabel);
            ilg.Ldloc(ilg.ReturnLocal);
            ilg.EndMethod();
        }

        private void WriteStructMethod(StructMapping mapping)
        {
            string methodName = (string)MethodNames[mapping];

            ilg = new CodeGenerator(this.typeBuilder);
            List<Type> argTypes = new List<Type>(5);
            List<string> argNames = new List<string>(5);
            argTypes.Add(typeof(string));
            argNames.Add("n");
            argTypes.Add(typeof(string));
            argNames.Add("ns");
            argTypes.Add(mapping.TypeDesc.Type);
            argNames.Add("o");
            if (mapping.TypeDesc.IsNullable)
            {
                argTypes.Add(typeof(Boolean));
                argNames.Add("isNullable");
            }
            argTypes.Add(typeof(Boolean));
            argNames.Add("needType");
            ilg.BeginMethod(typeof(void),
                GetMethodBuilder(methodName),
                argTypes.ToArray(),
                argNames.ToArray(),
                CodeGenerator.PrivateMethodAttributes);
            if (mapping.TypeDesc.IsNullable)
            {
                ilg.If(ilg.GetArg("o"), Cmp.EqualTo, null);
                {
                    ilg.If(ilg.GetArg("isNullable"), Cmp.EqualTo, true);
                    {
                        MethodInfo XmlSerializationWriter_WriteNullTagLiteral = typeof(XmlSerializationWriter).GetMethod(
                                "WriteNullTagLiteral",
                                CodeGenerator.InstanceBindingFlags,
                                new Type[] { typeof(String), typeof(String) }
                                );
                        ilg.Ldarg(0);
                        ilg.Ldarg("n");
                        ilg.Ldarg("ns");
                        ilg.Call(XmlSerializationWriter_WriteNullTagLiteral);
                    }
                    ilg.EndIf();
                    ilg.GotoMethodEnd();
                }
                ilg.EndIf();
            }
            ilg.If(ilg.GetArg("needType"), Cmp.NotEqualTo, true); // if (!needType)

            LocalBuilder tLoc = ilg.DeclareLocal(typeof(Type), "t");
            MethodInfo Object_GetType = typeof(object).GetMethod(
                    "GetType",
                    CodeGenerator.InstanceBindingFlags,
                    Array.Empty<Type>()
                    );
            ArgBuilder oArg = ilg.GetArg("o");
            ilg.LdargAddress(oArg);
            ilg.ConvertAddress(oArg.ArgType, typeof(object));
            ilg.Call(Object_GetType);
            ilg.Stloc(tLoc);
            WriteTypeCompare("t", mapping.TypeDesc.Type);
            // Bool on the stack from WriteTypeCompare.
            ilg.If(); // if (t == typeof(...))
            WriteDerivedTypes(mapping);
            if (mapping.TypeDesc.IsRoot)
                WriteEnumAndArrayTypes();
            ilg.Else();
            if (mapping.TypeDesc.IsRoot)
            {
                MethodInfo XmlSerializationWriter_WriteTypedPrimitive = typeof(XmlSerializationWriter).GetMethod(
                        "WriteTypedPrimitive",
                        CodeGenerator.InstanceBindingFlags,
                        new Type[] { typeof(String), typeof(String), typeof(Object), typeof(Boolean) }
                        );
                ilg.Ldarg(0);
                ilg.Ldarg("n");
                ilg.Ldarg("ns");
                ilg.Ldarg("o");
                ilg.Ldc(true);
                ilg.Call(XmlSerializationWriter_WriteTypedPrimitive);
                ilg.GotoMethodEnd();
            }
            else
            {
                MethodInfo XmlSerializationWriter_CreateUnknownTypeException = typeof(XmlSerializationWriter).GetMethod(
                    "CreateUnknownTypeException",
                    CodeGenerator.InstanceBindingFlags,
                    new Type[] { typeof(Object) }
                    );
                ilg.Ldarg(0);
                ilg.Ldarg(oArg);
                ilg.ConvertValue(oArg.ArgType, typeof(Object));
                ilg.Call(XmlSerializationWriter_CreateUnknownTypeException);
                ilg.Throw();
            }
            ilg.EndIf(); // if (t == typeof(...))
            ilg.EndIf(); // if (!needType)

            if (!mapping.TypeDesc.IsAbstract)
            {
                if (mapping.TypeDesc.Type != null && typeof(XmlSchemaObject).IsAssignableFrom(mapping.TypeDesc.Type))
//.........这里部分代码省略.........

        private string GenerateTypeElement(XmlTypeMapping xmlTypeMapping)
        {
            ElementAccessor element = xmlTypeMapping.Accessor;
            TypeMapping mapping = element.Mapping;
            string methodName = NextMethodName(element.Name);
            ilg = new CodeGenerator(this.typeBuilder);
            ilg.BeginMethod(
                typeof(void),
                methodName,
                new Type[] { typeof(object) },
                new string[] { "o" },
                CodeGenerator.PublicMethodAttributes
                );

            MethodInfo XmlSerializationWriter_WriteStartDocument = typeof(XmlSerializationWriter).GetMethod(
                "WriteStartDocument",
                CodeGenerator.InstanceBindingFlags,
                Array.Empty<Type>()
                );
            ilg.Ldarg(0);
            ilg.Call(XmlSerializationWriter_WriteStartDocument);

            ilg.If(ilg.GetArg("o"), Cmp.EqualTo, null);
            if (element.IsNullable)
            {
                WriteLiteralNullTag(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""));
            }
            else
                WriteEmptyTag(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""));
            ilg.GotoMethodEnd();
            ilg.EndIf();

            if (!mapping.TypeDesc.IsValueType && !mapping.TypeDesc.Type.GetTypeInfo().IsPrimitive)
            {
                MethodInfo XmlSerializationWriter_TopLevelElement = typeof(XmlSerializationWriter).GetMethod(
                      "TopLevelElement",
                      CodeGenerator.InstanceBindingFlags,
                      Array.Empty<Type>()
                      );
                ilg.Ldarg(0);
                ilg.Call(XmlSerializationWriter_TopLevelElement);
            }

            WriteMember(new SourceInfo("o", "o", null, typeof(object), ilg), null, new ElementAccessor[] { element }, null, null, mapping.TypeDesc, true);

            ilg.EndMethod();
            return methodName;
        }

        private string GenerateMembersElement(XmlMembersMapping xmlMembersMapping)
        {
            ElementAccessor element = xmlMembersMapping.Accessor;
            MembersMapping mapping = (MembersMapping)element.Mapping;
            bool hasWrapperElement = mapping.HasWrapperElement;
            bool writeAccessors = mapping.WriteAccessors;
            string methodName = NextMethodName(element.Name);
            ilg = new CodeGenerator(this.typeBuilder);
            ilg.BeginMethod(
                typeof(void),
                methodName,
                new Type[] { typeof(object[]) },
                new string[] { "p" },
                CodeGenerator.PublicMethodAttributes
                );

            MethodInfo XmlSerializationWriter_WriteStartDocument = typeof(XmlSerializationWriter).GetMethod(
                "WriteStartDocument",
                CodeGenerator.InstanceBindingFlags,
                Array.Empty<Type>()
                );
            ilg.Ldarg(0);
            ilg.Call(XmlSerializationWriter_WriteStartDocument);

            MethodInfo XmlSerializationWriter_TopLevelElement = typeof(XmlSerializationWriter).GetMethod(
                "TopLevelElement",
                CodeGenerator.InstanceBindingFlags,
                Array.Empty<Type>()
                );
            ilg.Ldarg(0);
            ilg.Call(XmlSerializationWriter_TopLevelElement);

            // in the top-level method add check for the parameters length, 
            // because visual basic does not have a concept of an <out> parameter it uses <ByRef> instead
            // so sometime we think that we have more parameters then supplied
            LocalBuilder pLengthLoc = ilg.DeclareLocal(typeof(int), "pLength");
            ilg.Ldarg("p");
            ilg.Ldlen();
            ilg.Stloc(pLengthLoc);

            if (hasWrapperElement)
            {
                WriteStartElement(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""), false);

                int xmlnsMember = FindXmlnsIndex(mapping.Members);
                if (xmlnsMember >= 0)
                {
                    MemberMapping member = mapping.Members[xmlnsMember];
                    string source = "((" + typeof(XmlSerializerNamespaces).FullName + ")p[" + xmlnsMember.ToString(CultureInfo.InvariantCulture) + "])";

                    ilg.Ldloc(pLengthLoc);
                    ilg.Ldc(xmlnsMember);
                    ilg.If(Cmp.GreaterThan);
                    WriteNamespaces(source);
                    ilg.EndIf();
                }

                for (int i = 0; i < mapping.Members.Length; i++)
                {
                    MemberMapping member = mapping.Members[i];

                    if (member.Attribute != null && !member.Ignore)
                    {
                        SourceInfo source = new SourceInfo("p[" + i.ToString(CultureInfo.InvariantCulture) + "]", null, null, pLengthLoc.LocalType.GetElementType(), ilg);

                        SourceInfo specifiedSource = null;
                        int specifiedPosition = 0;
                        if (member.CheckSpecified != SpecifiedAccessor.None)
                        {
                            string memberNameSpecified = member.Name + "Specified";
                            for (int j = 0; j < mapping.Members.Length; j++)
                            {
                                if (mapping.Members[j].Name == memberNameSpecified)
                                {
                                    specifiedSource = new SourceInfo("((bool)p[" + j.ToString(CultureInfo.InvariantCulture) + "])", null, null, typeof(bool), ilg);
                                    specifiedPosition = j;
                                    break;
                                }
                            }
                        }

                        ilg.Ldloc(pLengthLoc);
                        ilg.Ldc(i);
                        ilg.If(Cmp.GreaterThan);

                        if (specifiedSource != null)
                        {
                            Label labelTrue = ilg.DefineLabel();
                            Label labelEnd = ilg.DefineLabel();
                            ilg.Ldloc(pLengthLoc);
                            ilg.Ldc(specifiedPosition);
                            ilg.Ble(labelTrue);
                            specifiedSource.Load(typeof(bool));
                            ilg.Br_S(labelEnd);
                            ilg.MarkLabel(labelTrue);
                            ilg.Ldc(true);
                            ilg.MarkLabel(labelEnd);
                            ilg.If();
                        }

//.........这里部分代码省略.........