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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Dynamic.Utils;
namespace System.Linq.Expressions.Interpreter
{
internal abstract class NotInstruction : Instruction
{
public static Instruction? s_Boolean, s_Int64, s_Int32, s_Int16, s_UInt64, s_UInt32, s_UInt16, s_Byte, s_SByte;
private NotInstruction() { }
public override int ConsumedStack => 1;
public override int ProducedStack => 1;
public override string InstructionName => "Not";
private sealed class NotBoolean : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(!(bool)value);
}
return 1;
}
}
private sealed class NotInt64 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(~(long)value);
}
return 1;
}
}
private sealed class NotInt32 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(~(int)value);
}
return 1;
}
}
private sealed class NotInt16 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push((short)(~(short)value));
}
return 1;
}
}
private sealed class NotUInt64 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(~(ulong)value);
}
return 1;
}
}
private sealed class NotUInt32 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(~(uint)value);
}
return 1;
}
}
private sealed class NotUInt16 : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(unchecked((ushort)(~(ushort)value)));
}
return 1;
}
}
private sealed class NotByte : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push(unchecked((byte)(~(byte)value)));
}
return 1;
}
}
private sealed class NotSByte : NotInstruction
{
public override int Run(InterpretedFrame frame)
{
object? value = frame.Pop();
if (value == null)
{
frame.Push(null);
}
else
{
frame.Push((sbyte)(~(sbyte)value));
}
return 1;
}
}
public static Instruction Create(Type type) =>
type.GetNonNullableType().GetTypeCode() switch
{
TypeCode.Boolean => s_Boolean ??= new NotBoolean(),
TypeCode.Int64 => s_Int64 ??= new NotInt64(),
TypeCode.Int32 => s_Int32 ??= new NotInt32(),
TypeCode.Int16 => s_Int16 ??= new NotInt16(),
TypeCode.UInt64 => s_UInt64 ??= new NotUInt64(),
TypeCode.UInt32 => s_UInt32 ??= new NotUInt32(),
TypeCode.UInt16 => s_UInt16 ??= new NotUInt16(),
TypeCode.Byte => s_Byte ??= new NotByte(),
TypeCode.SByte => s_SByte ??= new NotSByte(),
_ => throw ContractUtils.Unreachable,
};
}
}
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