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 EqualBoolean());
                case TypeCode.SByte: return _SByte ?? (_SByte = new EqualSByte());
                case TypeCode.Byte: return _Byte ?? (_Byte = new EqualByte());
                case TypeCode.Char: return _Char ?? (_Char = new EqualChar());
                case TypeCode.Int16: return _Int16 ?? (_Int16 = new EqualInt16());
                case TypeCode.Int32: return _Int32 ?? (_Int32 = new EqualInt32());
                case TypeCode.Int64: return _Int64 ?? (_Int64 = new EqualInt64());

                case TypeCode.UInt16: return _UInt16 ?? (_UInt16 = new EqualInt16());
                case TypeCode.UInt32: return _UInt32 ?? (_UInt32 = new EqualInt32());
                case TypeCode.UInt64: return _UInt64 ?? (_UInt64 = new EqualInt64());

                case TypeCode.Single: return _Single ?? (_Single = new EqualSingle());
                case TypeCode.Double: return _Double ?? (_Double = new EqualDouble());

                case TypeCode.Object:
                    if (!type.IsValueType()) {
                        return _Reference ?? (_Reference = new EqualReference());
                    }
                    // TODO: Nullable<T>
                    throw new NotImplementedException();

                default:
                    throw new NotImplementedException();
            }
        }
Esempio n. 2
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        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 EqualBoolean());
                case TypeCode.SByte: return _SByte ?? (_SByte = new EqualSByte());
                case TypeCode.Byte: return _Byte ?? (_Byte = new EqualByte());
                case TypeCode.Char: return _Char ?? (_Char = new EqualChar());
                case TypeCode.Int16: return _Int16 ?? (_Int16 = new EqualInt16());
                case TypeCode.Int32: return _Int32 ?? (_Int32 = new EqualInt32());
                case TypeCode.Int64: return _Int64 ?? (_Int64 = new EqualInt64());

                case TypeCode.UInt16: return _UInt16 ?? (_UInt16 = new EqualInt16());
                case TypeCode.UInt32: return _UInt32 ?? (_UInt32 = new EqualInt32());
                case TypeCode.UInt64: return _UInt64 ?? (_UInt64 = new EqualInt64());

                case TypeCode.Single: return _Single ?? (_Single = new EqualSingle());
                case TypeCode.Double: return _Double ?? (_Double = new EqualDouble());

                case TypeCode.Object:
                    if (!type.IsValueType()) {
                        return _Reference ?? (_Reference = new EqualReference());
                    }
                    // TODO: Nullable<T>
                    throw new NotImplementedException();

                default:
                    throw new NotImplementedException();
            }
        }
Esempio n. 3
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        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 EqualBoolean()));

            case TypeCode.SByte: return(s_SByte ?? (s_SByte = new EqualSByte()));

            case TypeCode.Byte: return(s_byte ?? (s_byte = new EqualByte()));

            case TypeCode.Char: return(s_char ?? (s_char = new EqualChar()));

            case TypeCode.Int16: return(s_int16 ?? (s_int16 = new EqualInt16()));

            case TypeCode.Int32: return(s_int32 ?? (s_int32 = new EqualInt32()));

            case TypeCode.Int64: return(s_int64 ?? (s_int64 = new EqualInt64()));

            case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new EqualInt16()));

            case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new EqualInt32()));

            case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new EqualInt64()));

            case TypeCode.Single: return(s_single ?? (s_single = new EqualSingle()));

            case TypeCode.Double: return(s_double ?? (s_double = new EqualDouble()));

            case TypeCode.Object:
                if (!typeInfo.IsValueType)
                {
                    return(s_reference ?? (s_reference = new EqualReference()));
                }
                // TODO: Nullable<T>
                throw new NotImplementedException();

            default:
                throw new NotImplementedException();
            }
        }
Esempio n. 4
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        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 EqualBooleanLiftedToNull()));

                case TypeCode.SByte: return(s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new EqualSByteLiftedToNull()));

                case TypeCode.Int16: return(s_Int16LiftedToNull ?? (s_Int16LiftedToNull = new EqualInt16LiftedToNull()));

                case TypeCode.Char: return(s_CharLiftedToNull ?? (s_CharLiftedToNull = new EqualCharLiftedToNull()));

                case TypeCode.Int32: return(s_Int32LiftedToNull ?? (s_Int32LiftedToNull = new EqualInt32LiftedToNull()));

                case TypeCode.Int64: return(s_Int64LiftedToNull ?? (s_Int64LiftedToNull = new EqualInt64LiftedToNull()));

                case TypeCode.Byte: return(s_ByteLiftedToNull ?? (s_ByteLiftedToNull = new EqualByteLiftedToNull()));

                case TypeCode.UInt16: return(s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new EqualUInt16LiftedToNull()));

                case TypeCode.UInt32: return(s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new EqualUInt32LiftedToNull()));

                case TypeCode.UInt64: return(s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new EqualUInt64LiftedToNull()));

                case TypeCode.Single: return(s_SingleLiftedToNull ?? (s_SingleLiftedToNull = new EqualSingleLiftedToNull()));

                default:
                    Debug.Assert(underlyingType.GetTypeCode() == TypeCode.Double);
                    return(s_DoubleLiftedToNull ?? (s_DoubleLiftedToNull = new EqualDoubleLiftedToNull()));
                }
            }
            else
            {
                switch (underlyingType.GetTypeCode())
                {
                case TypeCode.Boolean: return(s_Boolean ?? (s_Boolean = new EqualBoolean()));

                case TypeCode.SByte: return(s_SByte ?? (s_SByte = new EqualSByte()));

                case TypeCode.Int16: return(s_Int16 ?? (s_Int16 = new EqualInt16()));

                case TypeCode.Char: return(s_Char ?? (s_Char = new EqualChar()));

                case TypeCode.Int32: return(s_Int32 ?? (s_Int32 = new EqualInt32()));

                case TypeCode.Int64: return(s_Int64 ?? (s_Int64 = new EqualInt64()));

                case TypeCode.Byte: return(s_Byte ?? (s_Byte = new EqualByte()));

                case TypeCode.UInt16: return(s_UInt16 ?? (s_UInt16 = new EqualUInt16()));

                case TypeCode.UInt32: return(s_UInt32 ?? (s_UInt32 = new EqualUInt32()));

                case TypeCode.UInt64: return(s_UInt64 ?? (s_UInt64 = new EqualUInt64()));

                case TypeCode.Single: return(s_Single ?? (s_Single = new EqualSingle()));

                case TypeCode.Double: return(s_Double ?? (s_Double = new EqualDouble()));

                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 EqualReference()));
                }
            }
        }
Esempio n. 5
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        public static Instruction Create(Type type, bool liftedToNull)
        {
            if (liftedToNull)
            {
                switch (type.GetNonNullable().GetTypeCode())
                {
                case TypeCode.Boolean: return(_booleanLiftedToNull ?? (_booleanLiftedToNull = new EqualBooleanLiftedToNull()));

                case TypeCode.SByte: return(_sByteLiftedToNull ?? (_sByteLiftedToNull = new EqualSByteLiftedToNull()));

                case TypeCode.Int16: return(_int16LiftedToNull ?? (_int16LiftedToNull = new EqualInt16LiftedToNull()));

                case TypeCode.Char: return(_charLiftedToNull ?? (_charLiftedToNull = new EqualCharLiftedToNull()));

                case TypeCode.Int32: return(_int32LiftedToNull ?? (_int32LiftedToNull = new EqualInt32LiftedToNull()));

                case TypeCode.Int64: return(_int64LiftedToNull ?? (_int64LiftedToNull = new EqualInt64LiftedToNull()));

                case TypeCode.Byte: return(_byteLiftedToNull ?? (_byteLiftedToNull = new EqualByteLiftedToNull()));

                case TypeCode.UInt16: return(_uInt16LiftedToNull ?? (_uInt16LiftedToNull = new EqualUInt16LiftedToNull()));

                case TypeCode.UInt32: return(_uInt32LiftedToNull ?? (_uInt32LiftedToNull = new EqualUInt32LiftedToNull()));

                case TypeCode.UInt64: return(_uInt64LiftedToNull ?? (_uInt64LiftedToNull = new EqualUInt64LiftedToNull()));

                case TypeCode.Single: return(_singleLiftedToNull ?? (_singleLiftedToNull = new EqualSingleLiftedToNull()));

                default:
                    Debug.Assert(type.GetNonNullable().GetTypeCode() == TypeCode.Double);
                    return(_doubleLiftedToNull ?? (_doubleLiftedToNull = new EqualDoubleLiftedToNull()));
                }
            }

            switch (type.GetNonNullable().GetTypeCode())
            {
            case TypeCode.Boolean: return(_boolean ?? (_boolean = new EqualBoolean()));

            case TypeCode.SByte: return(_sByte ?? (_sByte = new EqualSByte()));

            case TypeCode.Int16: return(_int16 ?? (_int16 = new EqualInt16()));

            case TypeCode.Char: return(_char ?? (_char = new EqualChar()));

            case TypeCode.Int32: return(_int32 ?? (_int32 = new EqualInt32()));

            case TypeCode.Int64: return(_int64 ?? (_int64 = new EqualInt64()));

            case TypeCode.Byte: return(_byte ?? (_byte = new EqualByte()));

            case TypeCode.UInt16: return(_uInt16 ?? (_uInt16 = new EqualUInt16()));

            case TypeCode.UInt32: return(_uInt32 ?? (_uInt32 = new EqualUInt32()));

            case TypeCode.UInt64: return(_uInt64 ?? (_uInt64 = new EqualUInt64()));

            case TypeCode.Single: return(_single ?? (_single = new EqualSingle()));

            case TypeCode.Double: return(_double ?? (_double = new EqualDouble()));

            default:
                // Nullable only valid if one operand is constant null, so this assert is slightly too broad.
                Debug.Assert(type.CanBeNull());
                return(_reference ?? (_reference = new EqualReference()));
            }
        }
Esempio n. 6
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        public static Instruction CreateLifted(Type type)
        {
            // Boxed enums can be unboxed as their underlying types:
            switch ((type.IsEnum() ? Enum.GetUnderlyingType(type) : type).GetTypeCode())
            {
            case TypeCode.Boolean: return(_BooleanLifted ?? (_BooleanLifted = new EqualBoolean()
                {
                    LiftedToNull = true
                }));

            case TypeCode.SByte: return(_SByteLifted ?? (_SByteLifted = new EqualSByte()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Byte: return(_ByteLifted ?? (_ByteLifted = new EqualByte()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Char: return(_CharLifted ?? (_CharLifted = new EqualChar()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Int16: return(_Int16Lifted ?? (_Int16Lifted = new EqualInt16()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Int32: return(_Int32Lifted ?? (_Int32Lifted = new EqualInt32()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Int64: return(_Int64Lifted ?? (_Int64Lifted = new EqualInt64()
                {
                    LiftedToNull = true
                }));

            case TypeCode.UInt16: return(_UInt16Lifted ?? (_UInt16Lifted = new EqualInt16()
                {
                    LiftedToNull = true
                }));

            case TypeCode.UInt32: return(_UInt32Lifted ?? (_UInt32Lifted = new EqualInt32()
                {
                    LiftedToNull = true
                }));

            case TypeCode.UInt64: return(_UInt64Lifted ?? (_UInt64Lifted = new EqualInt64()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Single: return(_SingleLifted ?? (_SingleLifted = new EqualSingle()
                {
                    LiftedToNull = true
                }));

            case TypeCode.Double: return(_DoubleLifted ?? (_DoubleLifted = new EqualDouble()
                {
                    LiftedToNull = true
                }));

            default:
                throw Assert.Unreachable;
            }
        }
Esempio n. 7
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        public static Instruction CreateLifted(Type type) {
            // Boxed enums can be unboxed as their underlying types:
            switch ((type.IsEnum() ? Enum.GetUnderlyingType(type) : type).GetTypeCode()) {
                case TypeCode.Boolean: return _BooleanLifted ?? (_BooleanLifted = new EqualBoolean() { LiftedToNull = true });
                case TypeCode.SByte: return _SByteLifted ?? (_SByteLifted = new EqualSByte() { LiftedToNull = true });
                case TypeCode.Byte: return _ByteLifted ?? (_ByteLifted = new EqualByte() { LiftedToNull = true });
                case TypeCode.Char: return _CharLifted ?? (_CharLifted = new EqualChar() { LiftedToNull = true });
                case TypeCode.Int16: return _Int16Lifted ?? (_Int16Lifted = new EqualInt16() { LiftedToNull = true });
                case TypeCode.Int32: return _Int32Lifted ?? (_Int32Lifted = new EqualInt32() { LiftedToNull = true });
                case TypeCode.Int64: return _Int64Lifted ?? (_Int64Lifted = new EqualInt64() { LiftedToNull = true });

                case TypeCode.UInt16: return _UInt16Lifted ?? (_UInt16Lifted = new EqualInt16() { LiftedToNull = true });
                case TypeCode.UInt32: return _UInt32Lifted ?? (_UInt32Lifted = new EqualInt32() { LiftedToNull = true });
                case TypeCode.UInt64: return _UInt64Lifted ?? (_UInt64Lifted = new EqualInt64() { LiftedToNull = true });

                case TypeCode.Single: return _SingleLifted ?? (_SingleLifted = new EqualSingle() { LiftedToNull = true });
                case TypeCode.Double: return _DoubleLifted ?? (_DoubleLifted = new EqualDouble() { LiftedToNull = true });

                default:
                    throw Assert.Unreachable;
            }
        }
Esempio n. 8
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        public static Instruction Create(Type type, bool liftedToNull)
        {
            // Boxed enums can be unboxed as their underlying types:
            if (liftedToNull)
            {
                switch ((type.IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType()).GetTypeCode())
                {
                case TypeCode.Boolean:
                    return(_booleanLiftedToNull ?? (_booleanLiftedToNull = new EqualBooleanLiftedToNull()));

                case TypeCode.SByte:
                    return(_sbyteLiftedToNull ?? (_sbyteLiftedToNull = new EqualSByteLiftedToNull()));

                case TypeCode.Byte:
                    return(_byteLiftedToNull ?? (_byteLiftedToNull = new EqualByteLiftedToNull()));

                case TypeCode.Char:
                    return(_charLiftedToNull ?? (_charLiftedToNull = new EqualCharLiftedToNull()));

                case TypeCode.Int16:
                    return(_int16LiftedToNull ?? (_int16LiftedToNull = new EqualInt16LiftedToNull()));

                case TypeCode.Int32:
                    return(_int32LiftedToNull ?? (_int32LiftedToNull = new EqualInt32LiftedToNull()));

                case TypeCode.Int64:
                    return(_int64LiftedToNull ?? (_int64LiftedToNull = new EqualInt64LiftedToNull()));

                case TypeCode.UInt16:
                    return(_uint16LiftedToNull ?? (_uint16LiftedToNull = new EqualUInt16LiftedToNull()));

                case TypeCode.UInt32:
                    return(_uint32LiftedToNull ?? (_uint32LiftedToNull = new EqualUInt32LiftedToNull()));

                case TypeCode.UInt64:
                    return(_uint64LiftedToNull ?? (_uint64LiftedToNull = new EqualUInt64LiftedToNull()));

                case TypeCode.Single:
                    return(_singleLiftedToNull ?? (_singleLiftedToNull = new EqualSingleLiftedToNull()));

                case TypeCode.Double:
                    return(_doubleLiftedToNull ?? (_doubleLiftedToNull = new EqualDoubleLiftedToNull()));

                case TypeCode.String:
                case TypeCode.Object:
                    if (!type.IsValueType)
                    {
                        return(_referenceLiftedToNull ?? (_referenceLiftedToNull = new EqualReferenceLiftedToNull()));
                    }
                    // TODO: Nullable<T>
                    throw Error.ExpressionNotSupportedForNullableType("Equal", type);

                default:
                    throw Error.ExpressionNotSupportedForType("Equal", type);
                }
            }
            else
            {
                switch ((type.IsEnum ? Enum.GetUnderlyingType(type) : type.GetNonNullableType()).GetTypeCode())
                {
                case TypeCode.Boolean:
                    return(_boolean ?? (_boolean = new EqualBoolean()));

                case TypeCode.SByte:
                    return(_sbyte ?? (_sbyte = new EqualSByte()));

                case TypeCode.Byte:
                    return(_byte ?? (_byte = new EqualByte()));

                case TypeCode.Char:
                    return(_char ?? (_char = new EqualChar()));

                case TypeCode.Int16:
                    return(_int16 ?? (_int16 = new EqualInt16()));

                case TypeCode.Int32:
                    return(_int32 ?? (_int32 = new EqualInt32()));

                case TypeCode.Int64:
                    return(_int64 ?? (_int64 = new EqualInt64()));

                case TypeCode.UInt16:
                    return(_uint16 ?? (_uint16 = new EqualUInt16()));

                case TypeCode.UInt32:
                    return(_uint32 ?? (_uint32 = new EqualUInt32()));

                case TypeCode.UInt64:
                    return(_uint64 ?? (_uint64 = new EqualUInt64()));

                case TypeCode.Single:
                    return(_single ?? (_single = new EqualSingle()));

                case TypeCode.Double:
                    return(_double ?? (_double = new EqualDouble()));

                case TypeCode.String:
                case TypeCode.Object:
                    if (!type.IsValueType)
                    {
                        return(_reference ?? (_reference = new EqualReference()));
                    }
                    // TODO: Nullable<T>
                    throw Error.ExpressionNotSupportedForNullableType("Equal", type);

                default:
                    throw Error.ExpressionNotSupportedForType("Equal", type);
                }
            }
        }
        public static Instruction Create(Type type, bool liftedToNull)
        {
            // Boxed enums can be unboxed as their underlying types:
            if (liftedToNull)
            {
                switch (TypeHelper.GetTypeCode(type.IsEnum ? Enum.GetUnderlyingType(type) : TypeHelper.GetNonNullableType(type)))
                {
                    case TypeCode.Boolean: return s_booleanLiftedToNull ?? (s_booleanLiftedToNull = new EqualBooleanLiftedToNull());
                    case TypeCode.SByte: return s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new EqualSByteLiftedToNull());
                    case TypeCode.Byte: return s_byteLiftedToNull ?? (s_byteLiftedToNull = new EqualByteLiftedToNull());
                    case TypeCode.Char: return s_charLiftedToNull ?? (s_charLiftedToNull = new EqualCharLiftedToNull());
                    case TypeCode.Int16: return s_int16LiftedToNull ?? (s_int16LiftedToNull = new EqualInt16LiftedToNull());
                    case TypeCode.Int32: return s_int32LiftedToNull ?? (s_int32LiftedToNull = new EqualInt32LiftedToNull());
                    case TypeCode.Int64: return s_int64LiftedToNull ?? (s_int64LiftedToNull = new EqualInt64LiftedToNull());

                    case TypeCode.UInt16: return s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new EqualUInt16LiftedToNull());
                    case TypeCode.UInt32: return s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new EqualUInt32LiftedToNull());
                    case TypeCode.UInt64: return s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new EqualUInt64LiftedToNull());

                    case TypeCode.Single: return s_singleLiftedToNull ?? (s_singleLiftedToNull = new EqualSingleLiftedToNull());
                    case TypeCode.Double: return s_doubleLiftedToNull ?? (s_doubleLiftedToNull = new EqualDoubleLiftedToNull());

                    case TypeCode.String:
                    case TypeCode.Object:
                        if (!type.IsValueType)
                        {
                            return s_referenceLiftedToNull ?? (s_referenceLiftedToNull = new EqualReferenceLiftedToNull());
                        }
                        // TODO: Nullable<T>
                        throw Error.ExpressionNotSupportedForNullableType("Equal", type);

                    default:
                        throw Error.ExpressionNotSupportedForType("Equal", type);
                }
            }
            else
            {
                switch (TypeHelper.GetTypeCode(type.IsEnum ? Enum.GetUnderlyingType(type) : TypeHelper.GetNonNullableType(type)))
                {
                    case TypeCode.Boolean: return s_boolean ?? (s_boolean = new EqualBoolean());
                    case TypeCode.SByte: return s_SByte ?? (s_SByte = new EqualSByte());
                    case TypeCode.Byte: return s_byte ?? (s_byte = new EqualByte());
                    case TypeCode.Char: return s_char ?? (s_char = new EqualChar());
                    case TypeCode.Int16: return s_int16 ?? (s_int16 = new EqualInt16());
                    case TypeCode.Int32: return s_int32 ?? (s_int32 = new EqualInt32());
                    case TypeCode.Int64: return s_int64 ?? (s_int64 = new EqualInt64());

                    case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new EqualUInt16());
                    case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new EqualUInt32());
                    case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new EqualUInt64());

                    case TypeCode.Single: return s_single ?? (s_single = new EqualSingle());
                    case TypeCode.Double: return s_double ?? (s_double = new EqualDouble());

                    case TypeCode.String:
                    case TypeCode.Object:
                        if (!type.IsValueType)
                        {
                            return s_reference ?? (s_reference = new EqualReference());
                        }
                        // TODO: Nullable<T>
                        throw Error.ExpressionNotSupportedForNullableType("Equal", type);

                    default:
                        throw Error.ExpressionNotSupportedForType("Equal", type);
                }
            }
        }
Esempio n. 10
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        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 EqualBoolean());
                case TypeCode.SByte: return s_SByte ?? (s_SByte = new EqualSByte());
                case TypeCode.Byte: return s_byte ?? (s_byte = new EqualByte());
                case TypeCode.Char: return s_char ?? (s_char = new EqualChar());
                case TypeCode.Int16: return s_int16 ?? (s_int16 = new EqualInt16());
                case TypeCode.Int32: return s_int32 ?? (s_int32 = new EqualInt32());
                case TypeCode.Int64: return s_int64 ?? (s_int64 = new EqualInt64());

                case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new EqualInt16());
                case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new EqualInt32());
                case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new EqualInt64());

                case TypeCode.Single: return s_single ?? (s_single = new EqualSingle());
                case TypeCode.Double: return s_double ?? (s_double = new EqualDouble());

                case TypeCode.Object:
                    if (!typeInfo.IsValueType)
                    {
                        return s_reference ?? (s_reference = new EqualReference());
                    }
                    // TODO: Nullable<T>
                    throw new NotImplementedException();

                default:
                    throw new NotImplementedException();
            }
        }
Esempio n. 11
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        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 EqualBooleanLiftedToNull());
                    case TypeCode.SByte: return s_SByteLiftedToNull ?? (s_SByteLiftedToNull = new EqualSByteLiftedToNull());
                    case TypeCode.Byte: return s_byteLiftedToNull ?? (s_byteLiftedToNull = new EqualByteLiftedToNull());
                    case TypeCode.Char: return s_charLiftedToNull ?? (s_charLiftedToNull = new EqualCharLiftedToNull());
                    case TypeCode.Int16: return s_int16LiftedToNull ?? (s_int16LiftedToNull = new EqualInt16LiftedToNull());
                    case TypeCode.Int32: return s_int32LiftedToNull ?? (s_int32LiftedToNull = new EqualInt32LiftedToNull());
                    case TypeCode.Int64: return s_int64LiftedToNull ?? (s_int64LiftedToNull = new EqualInt64LiftedToNull());

                    case TypeCode.UInt16: return s_UInt16LiftedToNull ?? (s_UInt16LiftedToNull = new EqualUInt16LiftedToNull());
                    case TypeCode.UInt32: return s_UInt32LiftedToNull ?? (s_UInt32LiftedToNull = new EqualUInt32LiftedToNull());
                    case TypeCode.UInt64: return s_UInt64LiftedToNull ?? (s_UInt64LiftedToNull = new EqualUInt64LiftedToNull());

                    case TypeCode.Single: return s_singleLiftedToNull ?? (s_singleLiftedToNull = new EqualSingleLiftedToNull());
                    default:
                        Debug.Assert(underlyingType.GetTypeCode() == TypeCode.Double);
                        return s_doubleLiftedToNull ?? (s_doubleLiftedToNull = new EqualDoubleLiftedToNull());
                }
            }
            else
            {
                switch (underlyingType.GetTypeCode())
                {
                    case TypeCode.Boolean: return s_boolean ?? (s_boolean = new EqualBoolean());
                    case TypeCode.SByte: return s_SByte ?? (s_SByte = new EqualSByte());
                    case TypeCode.Byte: return s_byte ?? (s_byte = new EqualByte());
                    case TypeCode.Char: return s_char ?? (s_char = new EqualChar());
                    case TypeCode.Int16: return s_int16 ?? (s_int16 = new EqualInt16());
                    case TypeCode.Int32: return s_int32 ?? (s_int32 = new EqualInt32());
                    case TypeCode.Int64: return s_int64 ?? (s_int64 = new EqualInt64());

                    case TypeCode.UInt16: return s_UInt16 ?? (s_UInt16 = new EqualUInt16());
                    case TypeCode.UInt32: return s_UInt32 ?? (s_UInt32 = new EqualUInt32());
                    case TypeCode.UInt64: return s_UInt64 ?? (s_UInt64 = new EqualUInt64());

                    case TypeCode.Single: return s_single ?? (s_single = new EqualSingle());
                    case TypeCode.Double: return s_double ?? (s_double = new EqualDouble());

                    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 EqualReference());

                }
            }
        }