EmitNumericConversion()

static void System.Linq.Expressions.Compiler.ILGen.EmitNumericConversion ( this ILGenerator il, Type typeFrom, Type typeTo, bool isChecked )

inlinestaticprivate

Definition at line 494 of file ILGen.cs.

    {
        TypeCode typeCode = typeTo.GetTypeCode();
        TypeCode typeCode2 = typeFrom.GetTypeCode();
        if (typeCode == typeCode2)
        {
            return;
        }
        bool flag = typeCode2.IsUnsigned();
        OpCode opcode;
        switch (typeCode)
        {
        case TypeCode.Single:
            if (flag)
            {
                il.Emit(OpCodes.Conv_R_Un);
            }
            opcode = OpCodes.Conv_R4;
            break;
        case TypeCode.Double:
            if (flag)
            {
                il.Emit(OpCodes.Conv_R_Un);
            }
            opcode = OpCodes.Conv_R8;
            break;
        case TypeCode.Decimal:
        {
            MethodInfo meth = typeCode2 switch
            {
                TypeCode.Byte => CachedReflectionInfo.Decimal_op_Implicit_Byte, 
                TypeCode.SByte => CachedReflectionInfo.Decimal_op_Implicit_SByte, 
                TypeCode.Int16 => CachedReflectionInfo.Decimal_op_Implicit_Int16, 
                TypeCode.UInt16 => CachedReflectionInfo.Decimal_op_Implicit_UInt16, 
                TypeCode.Int32 => CachedReflectionInfo.Decimal_op_Implicit_Int32, 
                TypeCode.UInt32 => CachedReflectionInfo.Decimal_op_Implicit_UInt32, 
                TypeCode.Int64 => CachedReflectionInfo.Decimal_op_Implicit_Int64, 
                TypeCode.UInt64 => CachedReflectionInfo.Decimal_op_Implicit_UInt64, 
                TypeCode.Char => CachedReflectionInfo.Decimal_op_Implicit_Char, 
                _ => throw ContractUtils.Unreachable, 
            };
            il.Emit(OpCodes.Call, meth);
            return;
        }
        case TypeCode.SByte:
            if (isChecked)
            {
                opcode = (flag ? OpCodes.Conv_Ovf_I1_Un : OpCodes.Conv_Ovf_I1);
                break;
            }
            if (typeCode2 == TypeCode.Byte)
            {
                return;
            }
            opcode = OpCodes.Conv_I1;
            break;
        case TypeCode.Byte:
            if (isChecked)
            {
                opcode = (flag ? OpCodes.Conv_Ovf_U1_Un : OpCodes.Conv_Ovf_U1);
                break;
            }
            if (typeCode2 == TypeCode.SByte)
            {
                return;
            }
            opcode = OpCodes.Conv_U1;
            break;
        case TypeCode.Int16:
            switch (typeCode2)
            {
            case TypeCode.SByte:
            case TypeCode.Byte:
                return;
            case TypeCode.Char:
            case TypeCode.UInt16:
                if (!isChecked)
                {
                    return;
                }
                break;
            }
            opcode = ((!isChecked) ? OpCodes.Conv_I2 : (flag ? OpCodes.Conv_Ovf_I2_Un : OpCodes.Conv_Ovf_I2));
            break;
        case TypeCode.Char:
        case TypeCode.UInt16:
            switch (typeCode2)
            {
            case TypeCode.Char:
            case TypeCode.Byte:
            case TypeCode.UInt16:
                return;
            case TypeCode.SByte:
            case TypeCode.Int16:
                if (!isChecked)
                {
                    return;
                }
                break;
            }
            opcode = ((!isChecked) ? OpCodes.Conv_U2 : (flag ? OpCodes.Conv_Ovf_U2_Un : OpCodes.Conv_Ovf_U2));
            break;
        case TypeCode.Int32:
            switch (typeCode2)
            {
            case TypeCode.SByte:
            case TypeCode.Byte:
            case TypeCode.Int16:
            case TypeCode.UInt16:
                return;
            case TypeCode.UInt32:
                if (!isChecked)
                {
                    return;
                }
                break;
            }
            opcode = ((!isChecked) ? OpCodes.Conv_I4 : (flag ? OpCodes.Conv_Ovf_I4_Un : OpCodes.Conv_Ovf_I4));
            break;
        case TypeCode.UInt32:
            switch (typeCode2)
            {
            case TypeCode.Char:
            case TypeCode.Byte:
            case TypeCode.UInt16:
                return;
            case TypeCode.SByte:
            case TypeCode.Int16:
            case TypeCode.Int32:
                if (!isChecked)
                {
                    return;
                }
                break;
            }
            opcode = ((!isChecked) ? OpCodes.Conv_U4 : (flag ? OpCodes.Conv_Ovf_U4_Un : OpCodes.Conv_Ovf_U4));
            break;
        case TypeCode.Int64:
            if (!isChecked && typeCode2 == TypeCode.UInt64)
            {
                return;
            }
            opcode = ((!isChecked) ? (flag ? OpCodes.Conv_U8 : OpCodes.Conv_I8) : (flag ? OpCodes.Conv_Ovf_I8_Un : OpCodes.Conv_Ovf_I8));
            break;
        case TypeCode.UInt64:
            if (!isChecked && typeCode2 == TypeCode.Int64)
            {
                return;
            }
            opcode = ((!isChecked) ? ((flag || typeCode2.IsFloatingPoint()) ? OpCodes.Conv_U8 : OpCodes.Conv_I8) : ((flag || typeCode2.IsFloatingPoint()) ? OpCodes.Conv_Ovf_U8_Un : OpCodes.Conv_Ovf_U8));
            break;
        default:
            throw ContractUtils.Unreachable;
        }
        il.Emit(opcode);
    }

References System.Reflection.Emit.OpCodes.Call, System.Reflection.Emit.OpCodes.Conv_I1, System.Reflection.Emit.OpCodes.Conv_I2, System.Reflection.Emit.OpCodes.Conv_I4, System.Reflection.Emit.OpCodes.Conv_I8, System.Reflection.Emit.OpCodes.Conv_Ovf_I1, System.Reflection.Emit.OpCodes.Conv_Ovf_I2, System.Reflection.Emit.OpCodes.Conv_Ovf_I4, System.Reflection.Emit.OpCodes.Conv_Ovf_I8, System.Reflection.Emit.OpCodes.Conv_Ovf_U1, System.Reflection.Emit.OpCodes.Conv_Ovf_U2, System.Reflection.Emit.OpCodes.Conv_Ovf_U4, System.Reflection.Emit.OpCodes.Conv_Ovf_U8, System.Reflection.Emit.OpCodes.Conv_Ovf_U8_Un, System.Reflection.Emit.OpCodes.Conv_R4, System.Reflection.Emit.OpCodes.Conv_R8, System.Reflection.Emit.OpCodes.Conv_R_Un, System.Reflection.Emit.OpCodes.Conv_U1, System.Reflection.Emit.OpCodes.Conv_U2, System.Reflection.Emit.OpCodes.Conv_U4, System.Reflection.Emit.OpCodes.Conv_U8, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_Byte, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_Char, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_Int16, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_Int32, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_Int64, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_SByte, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_UInt16, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_UInt32, System.Linq.Expressions.CachedReflectionInfo.Decimal_op_Implicit_UInt64, System.Reflection.Emit.ILGenerator.Emit(), System.Type.GetTypeCode(), and System.Dynamic.Utils.ContractUtils.Unreachable.