public static Instruction Create(Type type) { // Boxed enums can be unboxed as their underlying types: switch ((type.IsEnum() ? Enum.GetUnderlyingType(type) : type).GetTypeCode()) { case TypeCode.Boolean: return _Boolean ?? (_Boolean = new NotEqualBoolean()); case TypeCode.SByte: return _SByte ?? (_SByte = new NotEqualSByte()); case TypeCode.Byte: return _Byte ?? (_Byte = new NotEqualByte()); case TypeCode.Char: return _Char ?? (_Char = new NotEqualChar()); case TypeCode.Int16: return _Int16 ?? (_Int16 = new NotEqualInt16()); case TypeCode.Int32: return _Int32 ?? (_Int32 = new NotEqualInt32()); case TypeCode.Int64: return _Int64 ?? (_Int64 = new NotEqualInt64()); case TypeCode.UInt16: return _UInt16 ?? (_UInt16 = new NotEqualInt16()); case TypeCode.UInt32: return _UInt32 ?? (_UInt32 = new NotEqualInt32()); case TypeCode.UInt64: return _UInt64 ?? (_UInt64 = new NotEqualInt64()); case TypeCode.Single: return _Single ?? (_Single = new NotEqualSingle()); case TypeCode.Double: return _Double ?? (_Double = new NotEqualDouble()); case TypeCode.Object: if (!type.IsValueType()) { return _Reference ?? (_Reference = new NotEqualReference()); } // TODO: Nullable<T> throw new NotImplementedException(); default: throw new NotImplementedException(); } }
public static Instruction Create(Type type) { var typeInfo = type.GetTypeInfo(); // Boxed enums can be unboxed as their underlying types: var typeToUse = typeInfo.IsEnum ? Enum.GetUnderlyingType(type) : type; switch (typeToUse.GetTypeCode()) { case TypeCode.Boolean: return(s_boolean ?? (s_boolean = new NotEqualBoolean())); case TypeCode.SByte: return(s_SByte ?? (s_SByte = new NotEqualSByte())); case TypeCode.Byte: return(s_byte ?? (s_byte = new NotEqualByte())); case TypeCode.Char: return(s_char ?? (s_char = new NotEqualChar())); case TypeCode.Int16: return(s_int16 ?? (s_int16 = new NotEqualInt16())); case TypeCode.Int32: return(s_int32 ?? (s_int32 = new NotEqualInt32())); case TypeCode.Int64: return(s_int64 ?? (s_int64 = new NotEqualInt64())); case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new NotEqualInt16())); case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new NotEqualInt32())); case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new NotEqualInt64())); case TypeCode.Single: return(s_single ?? (s_single = new NotEqualSingle())); case TypeCode.Double: return(s_double ?? (s_double = new NotEqualDouble())); case TypeCode.Object: if (!typeInfo.IsValueType) { return(s_reference ?? (s_reference = new NotEqualReference())); } // TODO: Nullable<T> throw new NotImplementedException(); default: throw new NotImplementedException(); } }
public static Instruction Create(Type type) { // Boxed enums can be unboxed as their underlying types: switch ((type.IsEnum() ? Enum.GetUnderlyingType(type) : type).GetTypeCode()) { case TypeCode.Boolean: return(_Boolean ?? (_Boolean = new NotEqualBoolean())); case TypeCode.SByte: return(_SByte ?? (_SByte = new NotEqualSByte())); case TypeCode.Byte: return(_Byte ?? (_Byte = new NotEqualByte())); case TypeCode.Char: return(_Char ?? (_Char = new NotEqualChar())); case TypeCode.Int16: return(_Int16 ?? (_Int16 = new NotEqualInt16())); case TypeCode.Int32: return(_Int32 ?? (_Int32 = new NotEqualInt32())); case TypeCode.Int64: return(_Int64 ?? (_Int64 = new NotEqualInt64())); case TypeCode.UInt16: return(_UInt16 ?? (_UInt16 = new NotEqualInt16())); case TypeCode.UInt32: return(_UInt32 ?? (_UInt32 = new NotEqualInt32())); case TypeCode.UInt64: return(_UInt64 ?? (_UInt64 = new NotEqualInt64())); case TypeCode.Single: return(_Single ?? (_Single = new NotEqualSingle())); case TypeCode.Double: return(_Double ?? (_Double = new NotEqualDouble())); case TypeCode.String: return(_String ?? (_Double = new NotEqualString())); case TypeCode.Object: if (!type.IsValueType()) { return(_Reference ?? (_Reference = new NotEqualReference())); } // TODO: Nullable<T> throw new NotImplementedException(); default: throw new NotImplementedException(); } }
public static Instruction Create(Type type, bool liftedToNull) { if (liftedToNull) { switch (type.GetNonNullableType().GetTypeCode()) { case TypeCode.Boolean: return(ExclusiveOrInstruction.Create(type)); case TypeCode.SByte: return(s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new NotEqualSByteLiftedToNull())); case TypeCode.Int16: return(s_Int16LiftedToNull ?? (s_Int16LiftedToNull = new NotEqualInt16LiftedToNull())); case TypeCode.Char: return(s_CharLiftedToNull ?? (s_CharLiftedToNull = new NotEqualCharLiftedToNull())); case TypeCode.Int32: return(s_Int32LiftedToNull ?? (s_Int32LiftedToNull = new NotEqualInt32LiftedToNull())); case TypeCode.Int64: return(s_Int64LiftedToNull ?? (s_Int64LiftedToNull = new NotEqualInt64LiftedToNull())); case TypeCode.Byte: return(s_ByteLiftedToNull ?? (s_ByteLiftedToNull = new NotEqualByteLiftedToNull())); case TypeCode.UInt16: return(s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new NotEqualUInt16LiftedToNull())); case TypeCode.UInt32: return(s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new NotEqualUInt32LiftedToNull())); case TypeCode.UInt64: return(s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new NotEqualUInt64LiftedToNull())); case TypeCode.Single: return(s_SingleLiftedToNull ?? (s_SingleLiftedToNull = new NotEqualSingleLiftedToNull())); default: Debug.Assert(type.GetNonNullableType().GetTypeCode() == TypeCode.Double); return(s_DoubleLiftedToNull ?? (s_DoubleLiftedToNull = new NotEqualDoubleLiftedToNull())); } } else { switch (type.GetNonNullableType().GetTypeCode()) { case TypeCode.Boolean: return(s_Boolean ?? (s_Boolean = new NotEqualBoolean())); case TypeCode.SByte: return(s_SByte ?? (s_SByte = new NotEqualSByte())); case TypeCode.Int16: return(s_Int16 ?? (s_Int16 = new NotEqualInt16())); case TypeCode.Char: return(s_Char ?? (s_Char = new NotEqualChar())); case TypeCode.Int32: return(s_Int32 ?? (s_Int32 = new NotEqualInt32())); case TypeCode.Int64: return(s_Int64 ?? (s_Int64 = new NotEqualInt64())); case TypeCode.Byte: return(s_Byte ?? (s_Byte = new NotEqualByte())); case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new NotEqualUInt16())); case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new NotEqualUInt32())); case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new NotEqualUInt64())); case TypeCode.Single: return(s_Single ?? (s_Single = new NotEqualSingle())); case TypeCode.Double: return(s_Double ?? (s_Double = new NotEqualDouble())); default: // Nullable only valid if one operand is constant null, so this assert is slightly too broad. Debug.Assert(type.IsNullableOrReferenceType()); return(s_reference ?? (s_reference = new NotEqualReference())); } } }
public static Instruction Create(Type type, bool liftedToNull) { if (liftedToNull) { // Boxed enums can be unboxed as their underlying types: switch (System.Dynamic.Utils.TypeExtensions.GetTypeCode(type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : TypeUtils.GetNonNullableType(type))) { case TypeCode.Boolean: return s_booleanLiftedToNull ?? (s_booleanLiftedToNull = new NotEqualBooleanLiftedToNull()); case TypeCode.SByte: return s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new NotEqualSByteLiftedToNull()); case TypeCode.Byte: return s_byteLiftedToNull ?? (s_byteLiftedToNull = new NotEqualByteLiftedToNull()); case TypeCode.Char: return s_charLiftedToNull ?? (s_charLiftedToNull = new NotEqualCharLiftedToNull()); case TypeCode.Int16: return s_int16LiftedToNull ?? (s_int16LiftedToNull = new NotEqualInt16LiftedToNull()); case TypeCode.Int32: return s_int32LiftedToNull ?? (s_int32LiftedToNull = new NotEqualInt32LiftedToNull()); case TypeCode.Int64: return s_int64LiftedToNull ?? (s_int64LiftedToNull = new NotEqualInt64LiftedToNull()); case TypeCode.UInt16: return s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new NotEqualUInt16LiftedToNull()); case TypeCode.UInt32: return s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new NotEqualUInt32LiftedToNull()); case TypeCode.UInt64: return s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new NotEqualUInt64LiftedToNull()); case TypeCode.Single: return s_singleLiftedToNull ?? (s_singleLiftedToNull = new NotEqualSingleLiftedToNull()); case TypeCode.Double: return s_doubleLiftedToNull ?? (s_doubleLiftedToNull = new NotEqualDoubleLiftedToNull()); case TypeCode.String: case TypeCode.Object: if (!type.GetTypeInfo().IsValueType) { return s_referenceLiftedToNull ?? (s_referenceLiftedToNull = new NotEqualReferenceLiftedToNull()); } // TODO: Nullable<T> throw Error.ExpressionNotSupportedForNullableType("NotEqual", type); default: throw Error.ExpressionNotSupportedForType("NotEqual", type); } } else { // Boxed enums can be unboxed as their underlying types: switch (System.Dynamic.Utils.TypeExtensions.GetTypeCode(type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : TypeUtils.GetNonNullableType(type))) { case TypeCode.Boolean: return s_boolean ?? (s_boolean = new NotEqualBoolean()); case TypeCode.SByte: return s_SByte ?? (s_SByte = new NotEqualSByte()); case TypeCode.Byte: return s_byte ?? (s_byte = new NotEqualByte()); case TypeCode.Char: return s_char ?? (s_char = new NotEqualChar()); case TypeCode.Int16: return s_int16 ?? (s_int16 = new NotEqualInt16()); case TypeCode.Int32: return s_int32 ?? (s_int32 = new NotEqualInt32()); case TypeCode.Int64: return s_int64 ?? (s_int64 = new NotEqualInt64()); case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new NotEqualUInt16()); case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new NotEqualUInt32()); case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new NotEqualUInt64()); case TypeCode.Single: return s_single ?? (s_single = new NotEqualSingle()); case TypeCode.Double: return s_double ?? (s_double = new NotEqualDouble()); case TypeCode.String: case TypeCode.Object: if (!type.GetTypeInfo().IsValueType) { return s_reference ?? (s_reference = new NotEqualReference()); } // TODO: Nullable<T> throw Error.ExpressionNotSupportedForNullableType("NotEqual", type); default: throw Error.ExpressionNotSupportedForType("NotEqual", type); } } }
public static Instruction Create(Type type, bool liftedToNull) { // Boxed enums can be unboxed as their underlying types: Type underlyingType = type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType(); if (liftedToNull) { switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return(s_booleanLiftedToNull ?? (s_booleanLiftedToNull = new NotEqualBooleanLiftedToNull())); case TypeCode.SByte: return(s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new NotEqualSByteLiftedToNull())); case TypeCode.Byte: return(s_byteLiftedToNull ?? (s_byteLiftedToNull = new NotEqualByteLiftedToNull())); case TypeCode.Char: return(s_charLiftedToNull ?? (s_charLiftedToNull = new NotEqualCharLiftedToNull())); case TypeCode.Int16: return(s_int16LiftedToNull ?? (s_int16LiftedToNull = new NotEqualInt16LiftedToNull())); case TypeCode.Int32: return(s_int32LiftedToNull ?? (s_int32LiftedToNull = new NotEqualInt32LiftedToNull())); case TypeCode.Int64: return(s_int64LiftedToNull ?? (s_int64LiftedToNull = new NotEqualInt64LiftedToNull())); case TypeCode.UInt16: return(s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new NotEqualUInt16LiftedToNull())); case TypeCode.UInt32: return(s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new NotEqualUInt32LiftedToNull())); case TypeCode.UInt64: return(s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new NotEqualUInt64LiftedToNull())); case TypeCode.Single: return(s_singleLiftedToNull ?? (s_singleLiftedToNull = new NotEqualSingleLiftedToNull())); default: Debug.Assert(underlyingType.GetTypeCode() == TypeCode.Double); return(s_doubleLiftedToNull ?? (s_doubleLiftedToNull = new NotEqualDoubleLiftedToNull())); } } else { switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return(s_boolean ?? (s_boolean = new NotEqualBoolean())); case TypeCode.SByte: return(s_SByte ?? (s_SByte = new NotEqualSByte())); case TypeCode.Byte: return(s_byte ?? (s_byte = new NotEqualByte())); case TypeCode.Char: return(s_char ?? (s_char = new NotEqualChar())); case TypeCode.Int16: return(s_int16 ?? (s_int16 = new NotEqualInt16())); case TypeCode.Int32: return(s_int32 ?? (s_int32 = new NotEqualInt32())); case TypeCode.Int64: return(s_int64 ?? (s_int64 = new NotEqualInt64())); case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new NotEqualUInt16())); case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new NotEqualUInt32())); case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new NotEqualUInt64())); case TypeCode.Single: return(s_single ?? (s_single = new NotEqualSingle())); case TypeCode.Double: return(s_double ?? (s_double = new NotEqualDouble())); default: // Nullable only valid if one operand is constant null, so this assert is slightly too broad. Debug.Assert(type.IsNullableOrReferenceType()); return(s_reference ?? (s_reference = new NotEqualReference())); } } }
public static Instruction Create(Type type, bool liftedToNull) { if (liftedToNull) { // Boxed enums can be unboxed as their underlying types: Type underlyingType = type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType(); switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return(s_booleanLiftedToNull ?? (s_booleanLiftedToNull = new NotEqualBooleanLiftedToNull())); case TypeCode.SByte: return(s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new NotEqualSByteLiftedToNull())); case TypeCode.Byte: return(s_byteLiftedToNull ?? (s_byteLiftedToNull = new NotEqualByteLiftedToNull())); case TypeCode.Char: return(s_charLiftedToNull ?? (s_charLiftedToNull = new NotEqualCharLiftedToNull())); case TypeCode.Int16: return(s_int16LiftedToNull ?? (s_int16LiftedToNull = new NotEqualInt16LiftedToNull())); case TypeCode.Int32: return(s_int32LiftedToNull ?? (s_int32LiftedToNull = new NotEqualInt32LiftedToNull())); case TypeCode.Int64: return(s_int64LiftedToNull ?? (s_int64LiftedToNull = new NotEqualInt64LiftedToNull())); case TypeCode.UInt16: return(s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new NotEqualUInt16LiftedToNull())); case TypeCode.UInt32: return(s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new NotEqualUInt32LiftedToNull())); case TypeCode.UInt64: return(s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new NotEqualUInt64LiftedToNull())); case TypeCode.Single: return(s_singleLiftedToNull ?? (s_singleLiftedToNull = new NotEqualSingleLiftedToNull())); case TypeCode.Double: return(s_doubleLiftedToNull ?? (s_doubleLiftedToNull = new NotEqualDoubleLiftedToNull())); case TypeCode.String: case TypeCode.Object: if (!type.GetTypeInfo().IsValueType) { return(s_referenceLiftedToNull ?? (s_referenceLiftedToNull = new NotEqualReferenceLiftedToNull())); } // TODO: Nullable<T> throw Error.ExpressionNotSupportedForNullableType("NotEqual", type); default: throw Error.ExpressionNotSupportedForType("NotEqual", type); } } else { // Boxed enums can be unboxed as their underlying types: Type underlyingType = type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType(); switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return(s_boolean ?? (s_boolean = new NotEqualBoolean())); case TypeCode.SByte: return(s_SByte ?? (s_SByte = new NotEqualSByte())); case TypeCode.Byte: return(s_byte ?? (s_byte = new NotEqualByte())); case TypeCode.Char: return(s_char ?? (s_char = new NotEqualChar())); case TypeCode.Int16: return(s_int16 ?? (s_int16 = new NotEqualInt16())); case TypeCode.Int32: return(s_int32 ?? (s_int32 = new NotEqualInt32())); case TypeCode.Int64: return(s_int64 ?? (s_int64 = new NotEqualInt64())); case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new NotEqualUInt16())); case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new NotEqualUInt32())); case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new NotEqualUInt64())); case TypeCode.Single: return(s_single ?? (s_single = new NotEqualSingle())); case TypeCode.Double: return(s_double ?? (s_double = new NotEqualDouble())); case TypeCode.String: case TypeCode.Object: if (!type.GetTypeInfo().IsValueType) { return(s_reference ?? (s_reference = new NotEqualReference())); } // TODO: Nullable<T> throw Error.ExpressionNotSupportedForNullableType("NotEqual", type); default: throw Error.ExpressionNotSupportedForType("NotEqual", type); } } }
public static Instruction Create(Type type, bool liftedToNull) { // Boxed enums can be unboxed as their underlying types: Type underlyingType = type.GetTypeInfo().IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType(); if (liftedToNull) { switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return s_BooleanLiftedToNull ?? (s_BooleanLiftedToNull = new NotEqualBooleanLiftedToNull()); case TypeCode.SByte: return s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new NotEqualSByteLiftedToNull()); case TypeCode.Int16: return s_Int16LiftedToNull ?? (s_Int16LiftedToNull = new NotEqualInt16LiftedToNull()); case TypeCode.Char: return s_CharLiftedToNull ?? (s_CharLiftedToNull = new NotEqualCharLiftedToNull()); case TypeCode.Int32: return s_Int32LiftedToNull ?? (s_Int32LiftedToNull = new NotEqualInt32LiftedToNull()); case TypeCode.Int64: return s_Int64LiftedToNull ?? (s_Int64LiftedToNull = new NotEqualInt64LiftedToNull()); case TypeCode.Byte: return s_ByteLiftedToNull ?? (s_ByteLiftedToNull = new NotEqualByteLiftedToNull()); case TypeCode.UInt16: return s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new NotEqualUInt16LiftedToNull()); case TypeCode.UInt32: return s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new NotEqualUInt32LiftedToNull()); case TypeCode.UInt64: return s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new NotEqualUInt64LiftedToNull()); case TypeCode.Single: return s_SingleLiftedToNull ?? (s_SingleLiftedToNull = new NotEqualSingleLiftedToNull()); default: Debug.Assert(underlyingType.GetTypeCode() == TypeCode.Double); return s_DoubleLiftedToNull ?? (s_DoubleLiftedToNull = new NotEqualDoubleLiftedToNull()); } } else { switch (underlyingType.GetTypeCode()) { case TypeCode.Boolean: return s_Boolean ?? (s_Boolean = new NotEqualBoolean()); case TypeCode.SByte: return s_SByte ?? (s_SByte = new NotEqualSByte()); case TypeCode.Int16: return s_Int16 ?? (s_Int16 = new NotEqualInt16()); case TypeCode.Char: return s_Char ?? (s_Char = new NotEqualChar()); case TypeCode.Int32: return s_Int32 ?? (s_Int32 = new NotEqualInt32()); case TypeCode.Int64: return s_Int64 ?? (s_Int64 = new NotEqualInt64()); case TypeCode.Byte: return s_Byte ?? (s_Byte = new NotEqualByte()); case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new NotEqualUInt16()); case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new NotEqualUInt32()); case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new NotEqualUInt64()); case TypeCode.Single: return s_Single ?? (s_Single = new NotEqualSingle()); case TypeCode.Double: return s_Double ?? (s_Double = new NotEqualDouble()); default: // Nullable only valid if one operand is constant null, so this assert is slightly too broad. Debug.Assert(type.IsNullableOrReferenceType()); return s_reference ?? (s_reference = new NotEqualReference()); } } }
public static Instruction Create(Type type) { var typeInfo = type.GetTypeInfo(); // Boxed enums can be unboxed as their underlying types: var typeToUse = typeInfo.IsEnum ? Enum.GetUnderlyingType(type) : type; switch (typeToUse.GetTypeCode()) { case TypeCode.Boolean: return s_boolean ?? (s_boolean = new NotEqualBoolean()); case TypeCode.SByte: return s_SByte ?? (s_SByte = new NotEqualSByte()); case TypeCode.Byte: return s_byte ?? (s_byte = new NotEqualByte()); case TypeCode.Char: return s_char ?? (s_char = new NotEqualChar()); case TypeCode.Int16: return s_int16 ?? (s_int16 = new NotEqualInt16()); case TypeCode.Int32: return s_int32 ?? (s_int32 = new NotEqualInt32()); case TypeCode.Int64: return s_int64 ?? (s_int64 = new NotEqualInt64()); case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new NotEqualInt16()); case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new NotEqualInt32()); case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new NotEqualInt64()); case TypeCode.Single: return s_single ?? (s_single = new NotEqualSingle()); case TypeCode.Double: return s_double ?? (s_double = new NotEqualDouble()); case TypeCode.Object: if (!typeInfo.IsValueType) { return s_reference ?? (s_reference = new NotEqualReference()); } // TODO: Nullable<T> throw new NotImplementedException(); default: throw new NotImplementedException(); } }