OrInstruction.cs

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using System.Dynamic.Utils;
 
namespace System.Linq.Expressions.Interpreter;
 
internal abstract class OrInstruction : Instruction
{
    private sealed class OrSByte : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((sbyte)((sbyte)obj | (sbyte)obj2));
            return 1;
        }
    }
 
    private sealed class OrInt16 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((short)((short)obj | (short)obj2));
            return 1;
        }
    }
 
    private sealed class OrInt32 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((int)obj | (int)obj2);
            return 1;
        }
    }
 
    private sealed class OrInt64 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((long)obj | (long)obj2);
            return 1;
        }
    }
 
    private sealed class OrByte : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((byte)((byte)obj | (byte)obj2));
            return 1;
        }
    }
 
    private sealed class OrUInt16 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((ushort)((ushort)obj | (ushort)obj2));
            return 1;
        }
    }
 
    private sealed class OrUInt32 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((uint)obj | (uint)obj2);
            return 1;
        }
    }
 
    private sealed class OrUInt64 : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj == null || obj2 == null)
            {
                frame.Push(null);
                return 1;
            }
            frame.Push((ulong)obj | (ulong)obj2);
            return 1;
        }
    }
 
    private sealed class OrBoolean : OrInstruction
    {
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null)
            {
                if (obj == null)
                {
                    frame.Push(null);
                }
                else
                {
                    frame.Push(((bool)obj) ? Utils.BoxedTrue : null);
                }
                return 1;
            }
            if (obj == null)
            {
                frame.Push(((bool)obj2) ? Utils.BoxedTrue : null);
                return 1;
            }
            frame.Push((bool)obj2 | (bool)obj);
            return 1;
        }
    }
 
    private static Instruction s_SByte;
 
    private static Instruction s_Int16;
 
    private static Instruction s_Int32;
 
    private static Instruction s_Int64;
 
    private static Instruction s_Byte;
 
    private static Instruction s_UInt16;
 
    private static Instruction s_UInt32;
 
    private static Instruction s_UInt64;
 
    private static Instruction s_Boolean;
 
    public override int ConsumedStack => 2;
 
    public override int ProducedStack => 1;
 
    public override string InstructionName => "Or";
 
    private OrInstruction()
    {
    }
 
    public static Instruction Create(Type type)
    {
        return type.GetNonNullableType().GetTypeCode() switch
        {
            TypeCode.SByte => s_SByte ?? (s_SByte = new OrSByte()), 
            TypeCode.Int16 => s_Int16 ?? (s_Int16 = new OrInt16()), 
            TypeCode.Int32 => s_Int32 ?? (s_Int32 = new OrInt32()), 
            TypeCode.Int64 => s_Int64 ?? (s_Int64 = new OrInt64()), 
            TypeCode.Byte => s_Byte ?? (s_Byte = new OrByte()), 
            TypeCode.UInt16 => s_UInt16 ?? (s_UInt16 = new OrUInt16()), 
            TypeCode.UInt32 => s_UInt32 ?? (s_UInt32 = new OrUInt32()), 
            TypeCode.UInt64 => s_UInt64 ?? (s_UInt64 = new OrUInt64()), 
            TypeCode.Boolean => s_Boolean ?? (s_Boolean = new OrBoolean()), 
            _ => throw ContractUtils.Unreachable, 
        };
    }
}