LessThanOrEqualInstruction.cs

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using System.Dynamic.Utils;
 
namespace System.Linq.Expressions.Interpreter;
 
internal abstract class LessThanOrEqualInstruction : Instruction
{
    private sealed class LessThanOrEqualSByte : LessThanOrEqualInstruction
    {
        public LessThanOrEqualSByte(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((sbyte)obj2 <= (sbyte)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualInt16 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualInt16(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((short)obj2 <= (short)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualChar : LessThanOrEqualInstruction
    {
        public LessThanOrEqualChar(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((char)obj2 <= (char)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualInt32 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualInt32(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((int)obj2 <= (int)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualInt64 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualInt64(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((long)obj2 <= (long)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualByte : LessThanOrEqualInstruction
    {
        public LessThanOrEqualByte(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((byte)obj2 <= (byte)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualUInt16 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualUInt16(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((ushort)obj2 <= (ushort)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualUInt32 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualUInt32(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((uint)obj2 <= (uint)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualUInt64 : LessThanOrEqualInstruction
    {
        public LessThanOrEqualUInt64(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((ulong)obj2 <= (ulong)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualSingle : LessThanOrEqualInstruction
    {
        public LessThanOrEqualSingle(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((float)obj2 <= (float)obj);
            }
            return 1;
        }
    }
 
    private sealed class LessThanOrEqualDouble : LessThanOrEqualInstruction
    {
        public LessThanOrEqualDouble(object nullValue)
            : base(nullValue)
        {
        }
 
        public override int Run(InterpretedFrame frame)
        {
            object obj = frame.Pop();
            object obj2 = frame.Pop();
            if (obj2 == null || obj == null)
            {
                frame.Push(_nullValue);
            }
            else
            {
                frame.Push((double)obj2 <= (double)obj);
            }
            return 1;
        }
    }
 
    private readonly object _nullValue;
 
    private static Instruction s_SByte;
 
    private static Instruction s_Int16;
 
    private static Instruction s_Char;
 
    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_Single;
 
    private static Instruction s_Double;
 
    private static Instruction s_liftedToNullSByte;
 
    private static Instruction s_liftedToNullInt16;
 
    private static Instruction s_liftedToNullChar;
 
    private static Instruction s_liftedToNullInt32;
 
    private static Instruction s_liftedToNullInt64;
 
    private static Instruction s_liftedToNullByte;
 
    private static Instruction s_liftedToNullUInt16;
 
    private static Instruction s_liftedToNullUInt32;
 
    private static Instruction s_liftedToNullUInt64;
 
    private static Instruction s_liftedToNullSingle;
 
    private static Instruction s_liftedToNullDouble;
 
    public override int ConsumedStack => 2;
 
    public override int ProducedStack => 1;
 
    public override string InstructionName => "LessThanOrEqual";
 
    private LessThanOrEqualInstruction(object nullValue)
    {
        _nullValue = nullValue;
    }
 
    public static Instruction Create(Type type, bool liftedToNull = false)
    {
        if (liftedToNull)
        {
            return type.GetNonNullableType().GetTypeCode() switch
            {
                TypeCode.SByte => s_liftedToNullSByte ?? (s_liftedToNullSByte = new LessThanOrEqualSByte(null)), 
                TypeCode.Int16 => s_liftedToNullInt16 ?? (s_liftedToNullInt16 = new LessThanOrEqualInt16(null)), 
                TypeCode.Char => s_liftedToNullChar ?? (s_liftedToNullChar = new LessThanOrEqualChar(null)), 
                TypeCode.Int32 => s_liftedToNullInt32 ?? (s_liftedToNullInt32 = new LessThanOrEqualInt32(null)), 
                TypeCode.Int64 => s_liftedToNullInt64 ?? (s_liftedToNullInt64 = new LessThanOrEqualInt64(null)), 
                TypeCode.Byte => s_liftedToNullByte ?? (s_liftedToNullByte = new LessThanOrEqualByte(null)), 
                TypeCode.UInt16 => s_liftedToNullUInt16 ?? (s_liftedToNullUInt16 = new LessThanOrEqualUInt16(null)), 
                TypeCode.UInt32 => s_liftedToNullUInt32 ?? (s_liftedToNullUInt32 = new LessThanOrEqualUInt32(null)), 
                TypeCode.UInt64 => s_liftedToNullUInt64 ?? (s_liftedToNullUInt64 = new LessThanOrEqualUInt64(null)), 
                TypeCode.Single => s_liftedToNullSingle ?? (s_liftedToNullSingle = new LessThanOrEqualSingle(null)), 
                TypeCode.Double => s_liftedToNullDouble ?? (s_liftedToNullDouble = new LessThanOrEqualDouble(null)), 
                _ => throw ContractUtils.Unreachable, 
            };
        }
        return type.GetNonNullableType().GetTypeCode() switch
        {
            TypeCode.SByte => s_SByte ?? (s_SByte = new LessThanOrEqualSByte(Utils.BoxedFalse)), 
            TypeCode.Int16 => s_Int16 ?? (s_Int16 = new LessThanOrEqualInt16(Utils.BoxedFalse)), 
            TypeCode.Char => s_Char ?? (s_Char = new LessThanOrEqualChar(Utils.BoxedFalse)), 
            TypeCode.Int32 => s_Int32 ?? (s_Int32 = new LessThanOrEqualInt32(Utils.BoxedFalse)), 
            TypeCode.Int64 => s_Int64 ?? (s_Int64 = new LessThanOrEqualInt64(Utils.BoxedFalse)), 
            TypeCode.Byte => s_Byte ?? (s_Byte = new LessThanOrEqualByte(Utils.BoxedFalse)), 
            TypeCode.UInt16 => s_UInt16 ?? (s_UInt16 = new LessThanOrEqualUInt16(Utils.BoxedFalse)), 
            TypeCode.UInt32 => s_UInt32 ?? (s_UInt32 = new LessThanOrEqualUInt32(Utils.BoxedFalse)), 
            TypeCode.UInt64 => s_UInt64 ?? (s_UInt64 = new LessThanOrEqualUInt64(Utils.BoxedFalse)), 
            TypeCode.Single => s_Single ?? (s_Single = new LessThanOrEqualSingle(Utils.BoxedFalse)), 
            TypeCode.Double => s_Double ?? (s_Double = new LessThanOrEqualDouble(Utils.BoxedFalse)), 
            _ => throw ContractUtils.Unreachable, 
        };
    }
}