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C# CodeGenerator.Else方法代码示例

本文整理汇总了C#中System.Reflection.Emit.CodeGenerator.Else方法的典型用法代码示例。如果您正苦于以下问题：C# CodeGenerator.Else方法的具体用法？C# CodeGenerator.Else怎么用？C# CodeGenerator.Else使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Reflection.Emit.CodeGenerator的用法示例。


在下文中一共展示了CodeGenerator.Else方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: SetMemberValue

        public void SetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, LocalBuilder memberValue)
        {
            generator.Ldarg(targetObject);
            generator.Load(memberName);
            generator.Ldloc(memberValue);

            // Type originalType = memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType;
            if (memberValue.LocalType.IsValueType)
            {
                generator.Box(memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType);
            }
            //���ֵΪ�գ����ܵ���ToString
            generator.Load(null);
            generator.If(Cmp.NotEqualTo);
            generator.Ldloc(memberValue);

            // Type originalType = memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType;
            if (memberValue.LocalType.IsValueType)
            {
                generator.Box(memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType);
            }
            generator.Call(typeof(object).GetMethod("ToString", Type.EmptyTypes));
            generator.Else();
            generator.LoadDefaultValue(memberValue.LocalType);
            if (memberValue.LocalType.IsValueType)
            {
                generator.Box(memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType);
            }
            generator.EndIf();
            generator.Call(typeof(NameValueCollection).GetMethod("Add", new Type[] { typeof(string), typeof(string) }));
        }
开发者ID:Oman，项目名称:Maleos，代码行数:31，代码来源:NameValueSetterGenerator.cs

示例2: GetMemberValue

        public void GetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, ref LocalBuilder memberValue)
        {
            LocalBuilder locValue = generator.DeclareLocal(typeof(string));
            Type targetType = memberValue.LocalType;
            Type originalType = ConvertorGeneratorHelper.GetOriginalType(targetType);

            generator.Ldarg(targetObject);
            generator.Load(memberName);
            generator.Call(typeof(NameValueCollection).GetMethod("get_Item", new Type[] { typeof(string) }));
            generator.Stloc(locValue);

            if (targetType.IsAssignableFrom(typeof(string)))
            {
                generator.Ldloc(locValue);
                generator.Stloc(memberValue);
                return;
            }
            else
            {
                generator.Ldloc(locValue);
                generator.Call(typeof(string).GetMethod("IsNullOrEmpty"));
                generator.Load(true);
                generator.If(Cmp.NotEqualTo);
                if (targetType == typeof(Guid))
                {
                    generator.Ldloc(locValue);
                    generator.New(typeof(Guid).GetConstructor(new Type[] { typeof(string) }));
                    generator.Stloc(memberValue);
                }
                else
                {
                    MethodInfo parseMethod = targetType.GetMethod("Parse", new Type[] { typeof(string) });
                    if (parseMethod != null)
                    {
                        generator.Ldloc(locValue);
                        generator.Call(parseMethod);
                        generator.Stloc(memberValue);
                    }
                    else
                    {
                        generator.Ldloc(locValue);
                        generator.Load(originalType);
                        generator.Call(typeof(Convert).GetMethod("ChangeType", new Type[] { typeof(object), typeof(Type) }));
                        if (targetType.IsValueType)
                        {
                            generator.UnboxAny(targetType);
                        }
                        generator.Stloc(memberValue);
                    }
                }
                generator.Else();
                generator.LoadDefaultValue(targetType);
                generator.Stloc(memberValue);
                generator.EndIf();
            }
        }
开发者ID:Oman，项目名称:Maleos，代码行数:56，代码来源:NameValueGetterGenerator.cs

示例3: GetMemberValue

        public void GetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, ref LocalBuilder memberValue)
        {
            Type inputType = targetObject.ArgType;
            MemberInfo memberInfo = ConvertorGeneratorHelper.GetMemberInfo(inputType, memberName);
            if (memberInfo == null)
            {
                return;
            }
            Type srcMemberType = ConvertorGeneratorHelper.GetMemberType(memberInfo);
            Type destMemberType = memberValue.LocalType;
            if (memberValue.LocalType.IsAssignableFrom(srcMemberType))
            {
                generator.Ldarg(targetObject);
                generator.LoadMember(memberInfo);
                generator.Stloc(memberValue);
                return;
            }

            Type converTargetType = ConvertorGeneratorHelper.GetOriginalType(destMemberType);

            Type convertSourceType = ConvertorGeneratorHelper.GetOriginalType(srcMemberType);

            //ת������
            if (typeof(IConvertible).IsAssignableFrom(convertSourceType))
            {
                generator.Ldarg(targetObject);
                generator.LoadMember(memberInfo);
                if (convertSourceType.IsValueType)
                {
                    generator.Box(srcMemberType);
                }
                //�Ƿ�Ϊ��
                generator.Load(null);
                generator.If(Cmp.NotEqualTo);
                //�����Ϊ�գ���������ת��
                generator.Ldarg(targetObject);
                generator.LoadMember(memberInfo);
                if (convertSourceType.IsValueType)
                {
                    generator.Box(srcMemberType);
                }
                generator.Load(converTargetType);
                generator.Call(typeof(Convert).GetMethod("ChangeType", new Type[] { typeof(object), typeof(Type) }));
                if (destMemberType.IsValueType)
                {
                    generator.UnboxAny(destMemberType);
                }
                generator.Stloc(memberValue);
                //���Ϊ�գ������Ĭ��ֵ
                generator.Else();
                generator.LoadDefaultValue(destMemberType);
                generator.Stloc(memberValue);
                generator.EndIf();
            }
        }
开发者ID:Oman，项目名称:Maleos，代码行数:55，代码来源:ObjectGetterGenerator.cs

示例4: GetMemberValue

        public void GetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, ref LocalBuilder memberValue)
        {
            LocalBuilder tempLocal = generator.DeclareLocal(typeof(object), "dataColumn");
            Type targetType = memberValue.LocalType;
            Type originalType = ConvertorGeneratorHelper.GetOriginalType(targetType);

            generator.Ldarg(targetObject);
            generator.Load(memberName);
            generator.Call(typeof(DataRow).GetMethod("get_Item", new Type[] { typeof(string) }));
            generator.Stloc(tempLocal);

            generator.Ldloc(tempLocal);
            generator.LoadMember(typeof(DBNull).GetField("Value", BindingFlags.Static | BindingFlags.Public));
            generator.If(Cmp.EqualTo);
            generator.LoadDefaultValue(targetType);
            generator.Stloc(memberValue);
            generator.Else();
            generator.Ldloc(tempLocal);

            generator.InternalILGenerator.Emit(OpCodes.Isinst, targetType);
            generator.InternalILGenerator.Emit(OpCodes.Ldnull);
            generator.InternalILGenerator.Emit(OpCodes.Cgt_Un);
            generator.Load(true);
            generator.If(Cmp.EqualTo);
            generator.Ldloc(tempLocal);
            if (targetType.IsValueType)
            {
                generator.UnboxAny(targetType);
            }
            generator.Stloc(memberValue);
            generator.Else();
            if (targetType == typeof(Guid))
            {
                generator.Ldloc(tempLocal);
                generator.InternalILGenerator.Emit(OpCodes.Isinst, typeof(string));
                generator.InternalILGenerator.Emit(OpCodes.Ldnull);
                generator.InternalILGenerator.Emit(OpCodes.Cgt_Un);
                generator.Load(true);
                generator.If(Cmp.EqualTo);
                generator.Ldloc(tempLocal);
                generator.New(typeof(Guid).GetConstructor(new Type[] { typeof(string) }));
                generator.Stloc(memberValue);
            }
            else
            {
                generator.Ldloc(tempLocal);
                generator.InternalILGenerator.Emit(OpCodes.Isinst, typeof(IConvertible));
                generator.InternalILGenerator.Emit(OpCodes.Ldnull);
                generator.InternalILGenerator.Emit(OpCodes.Cgt_Un);
                generator.Load(true);
                generator.If(Cmp.EqualTo);
                generator.Ldloc(tempLocal);
                generator.Load(originalType);
                generator.Call(typeof(Convert).GetMethod("ChangeType", new Type[] { typeof(object), typeof(Type) }));
                if (targetType.IsValueType)
                {
                    generator.UnboxAny(targetType);
                }
                generator.Stloc(memberValue);
            }
            generator.Else();
            generator.LoadDefaultValue(targetType);
            generator.Stloc(memberValue);
            generator.EndIf();
            generator.EndIf();
            generator.EndIf();
        }
开发者ID:Oman，项目名称:Maleos，代码行数:67，代码来源:DataRowGetterGenerator.cs

示例5: GetMemberValue

        public void GetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, ref LocalBuilder memberValue)
        {
            MethodInfo getMethod;
            bool mustBeUnBox = false;

            switch (Type.GetTypeCode(memberValue.LocalType))
            {
                case TypeCode.Boolean:
                    getMethod = typeof(IDataRecord).GetMethod("GetBoolean");
                    break;
                case TypeCode.Byte:
                    getMethod = typeof(IDataRecord).GetMethod("GetByte");
                    break;
                case TypeCode.Char:
                    getMethod = typeof(IDataRecord).GetMethod("GetChar");
                    break;
                case TypeCode.DateTime:
                    getMethod = typeof(IDataRecord).GetMethod("GetDateTime");
                    break;
                case TypeCode.Decimal:
                    getMethod = typeof(IDataRecord).GetMethod("GetDecimal");
                    break;
                //Teddy 2008-2-2: commented the lines below, because for some database, return data type of float or real could always be System.Single or System.Double
                //case TypeCode.Double:
                //    getMethod = typeof(IDataRecord).GetMethod("GetDouble");
                //    break;
                //case TypeCode.Single:
                //    getMethod = typeof(IDataRecord).GetMethod("GetFloat");
                //    break;
                case TypeCode.Int16:
                    getMethod = typeof(IDataRecord).GetMethod("GetInt16");
                    break;
                case TypeCode.Int32:
                    getMethod = typeof(IDataRecord).GetMethod("GetInt32");
                    break;
                case TypeCode.Int64:
                    getMethod = typeof(IDataRecord).GetMethod("GetInt64");
                    break;
                case TypeCode.String:
                    getMethod = typeof(IDataRecord).GetMethod("GetString");
                    break;
                default:
                    getMethod = typeof(IDataRecord).GetMethod("GetValue");
                    mustBeUnBox = true;
                    break;
            }
            if (memberValue.LocalType == typeof(Guid))
            {
                getMethod = typeof(IDataRecord).GetMethod("GetGuid");
                mustBeUnBox = false;
            }
            if (memberValue.LocalType.IsEnum)
            {
                getMethod = typeof(IDataRecord).GetMethod("GetValue");
                mustBeUnBox = true;
            }

            generator.Ldarg(targetObject);
            generator.Load(memberName);
            generator.Call(typeof(IDataRecord).GetMethod("GetOrdinal"));
            LocalBuilder fieldOrdinalLoc = generator.DeclareLocal(typeof(int));
            generator.Stloc(fieldOrdinalLoc);
            generator.Ldarg(targetObject);
            generator.Ldloc(fieldOrdinalLoc);
            generator.Call(typeof(IDataRecord).GetMethod("IsDBNull"));
            generator.IfNot();
            generator.Ldarg(targetObject);
            generator.Ldloc(fieldOrdinalLoc);
            generator.Call(getMethod);

            //Teddy 2008-2-2: added the  code section below to convert the object to the memberValue.LocalType
            if (!memberValue.LocalType.IsEnum && getMethod == typeof(IDataRecord).GetMethod("GetValue"))
            {
                generator.Load(Type.GetTypeCode(memberValue.LocalType));
                generator.Call(typeof(Convert).GetMethod("ChangeType", BindingFlags.Instance | BindingFlags.Public | BindingFlags.Static, null, new Type[] { typeof(object), typeof(TypeCode) }, null));
            }

            if (memberValue.LocalType.IsValueType && mustBeUnBox)
            {
                generator.UnboxAny(memberValue.LocalType);
            }
            generator.Else();
            generator.LoadDefaultValue(memberValue.LocalType);
            generator.EndIf();
            generator.Stloc(memberValue);
        }
开发者ID:Oman，项目名称:Maleos，代码行数:86，代码来源:DataReaderGetterGenerator.cs

示例6: SetMemberValue

        public void SetMemberValue(CodeGenerator generator, ArgBuilder targetObject, string memberName, LocalBuilder memberValue)
        {
            generator.Ldarg(targetObject);
            if (memberValue.LocalType.FullName.StartsWith("System.Nullable`1["))
            {
                generator.Ldloc(memberValue);
                generator.Load(null);
                generator.If(Cmp.EqualTo);
                generator.LoadMember(typeof(DBNull).GetField("Value"));
                generator.Stloc(memberValue);
                generator.EndIf();
            }
            generator.Load(null);

            generator.If(Cmp.EqualTo);
            PropertyInfo columns = typeof(DataTable).GetProperty("Columns");
            generator.Ldloc(locDataTable);
            generator.LoadMember(columns);
            generator.Load(memberName);
            generator.Ldtoken(CommonUtils.GetOriginalTypeOfNullableType(memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType));
            generator.Call(typeof(Type).GetMethod("GetTypeFromHandle", new Type[] { typeof(RuntimeTypeHandle) }));
            generator.Call(typeof(DataColumnCollection).GetMethod("Add", new Type[] { typeof(string), typeof(Type) }));
            generator.Pop();

            generator.Ldloc(locMemberValues);
            generator.Load(memberName);
            generator.Ldloc(memberValue);
            if (memberValue.LocalType.IsValueType)
            {
                generator.Box(memberValue.LocalType.IsEnum ? typeof(int) : memberValue.LocalType);
            }
            generator.Call(typeof(Dictionary<string, object>).GetMethod("Add"));
            generator.Else();
            generator.Ldarg(targetObject);
            generator.Load(memberName);
            generator.Ldloc(memberValue);
            if (memberValue.LocalType.IsValueType)
            {
                generator.Box(memberValue.LocalType);
            }
            generator.Call(typeof(DataRow).GetMethod("set_Item", new Type[] { typeof(string), typeof(object) }));
            generator.EndIf();
        }
开发者ID:Oman，项目名称:Maleos，代码行数:43，代码来源:DataRowSetterGenerator.cs


注：本文中的System.Reflection.Emit.CodeGenerator.Else方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。