ScriptingRuntimeHelpers.cs

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using System.Dynamic.Utils;
 
namespace System.Linq.Expressions.Interpreter;
 
internal static class ScriptingRuntimeHelpers
{
    public static object Int32ToObject(int i)
    {
        return i switch
        {
            -1 => Utils.BoxedIntM1, 
            0 => Utils.BoxedInt0, 
            1 => Utils.BoxedInt1, 
            2 => Utils.BoxedInt2, 
            3 => Utils.BoxedInt3, 
            _ => i, 
        };
    }
 
    internal static object GetPrimitiveDefaultValue(Type type)
    {
        object obj;
        switch (type.GetTypeCode())
        {
        case TypeCode.Boolean:
            obj = Utils.BoxedFalse;
            break;
        case TypeCode.SByte:
            obj = Utils.BoxedDefaultSByte;
            break;
        case TypeCode.Byte:
            obj = Utils.BoxedDefaultByte;
            break;
        case TypeCode.Char:
            obj = Utils.BoxedDefaultChar;
            break;
        case TypeCode.Int16:
            obj = Utils.BoxedDefaultInt16;
            break;
        case TypeCode.Int32:
            obj = Utils.BoxedInt0;
            break;
        case TypeCode.Int64:
            obj = Utils.BoxedDefaultInt64;
            break;
        case TypeCode.UInt16:
            obj = Utils.BoxedDefaultUInt16;
            break;
        case TypeCode.UInt32:
            obj = Utils.BoxedDefaultUInt32;
            break;
        case TypeCode.UInt64:
            obj = Utils.BoxedDefaultUInt64;
            break;
        case TypeCode.Single:
            return Utils.BoxedDefaultSingle;
        case TypeCode.Double:
            return Utils.BoxedDefaultDouble;
        case TypeCode.DateTime:
            return Utils.BoxedDefaultDateTime;
        case TypeCode.Decimal:
            return Utils.BoxedDefaultDecimal;
        default:
            return null;
        }
        if (type.IsEnum)
        {
            obj = Enum.ToObject(type, obj);
        }
        return obj;
    }
}