|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Diagnostics;
using System.Dynamic.Utils;
namespace System.Linq.Expressions.Interpreter
{
internal abstract class GreaterThanInstruction : Instruction
{
private readonly object? _nullValue;
private static Instruction? s_SByte, s_Int16, s_Char, s_Int32, s_Int64, s_Byte, s_UInt16, s_UInt32, s_UInt64, s_Single, s_Double;
private static Instruction? s_liftedToNullSByte, s_liftedToNullInt16, s_liftedToNullChar, s_liftedToNullInt32, s_liftedToNullInt64, s_liftedToNullByte, s_liftedToNullUInt16, s_liftedToNullUInt32, s_liftedToNullUInt64, s_liftedToNullSingle, s_liftedToNullDouble;
public override int ConsumedStack => 2;
public override int ProducedStack => 1;
public override string InstructionName => "GreaterThan";
private GreaterThanInstruction(object? nullValue)
{
_nullValue = nullValue;
}
private sealed class GreaterThanSByte : GreaterThanInstruction
{
public GreaterThanSByte(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((sbyte)left > (sbyte)right);
}
return 1;
}
}
private sealed class GreaterThanInt16 : GreaterThanInstruction
{
public GreaterThanInt16(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((short)left > (short)right);
}
return 1;
}
}
private sealed class GreaterThanChar : GreaterThanInstruction
{
public GreaterThanChar(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((char)left > (char)right);
}
return 1;
}
}
private sealed class GreaterThanInt32 : GreaterThanInstruction
{
public GreaterThanInt32(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((int)left > (int)right);
}
return 1;
}
}
private sealed class GreaterThanInt64 : GreaterThanInstruction
{
public GreaterThanInt64(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((long)left > (long)right);
}
return 1;
}
}
private sealed class GreaterThanByte : GreaterThanInstruction
{
public GreaterThanByte(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((byte)left > (byte)right);
}
return 1;
}
}
private sealed class GreaterThanUInt16 : GreaterThanInstruction
{
public GreaterThanUInt16(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((ushort)left > (ushort)right);
}
return 1;
}
}
private sealed class GreaterThanUInt32 : GreaterThanInstruction
{
public GreaterThanUInt32(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((uint)left > (uint)right);
}
return 1;
}
}
private sealed class GreaterThanUInt64 : GreaterThanInstruction
{
public GreaterThanUInt64(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((ulong)left > (ulong)right);
}
return 1;
}
}
private sealed class GreaterThanSingle : GreaterThanInstruction
{
public GreaterThanSingle(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((float)left > (float)right);
}
return 1;
}
}
private sealed class GreaterThanDouble : GreaterThanInstruction
{
public GreaterThanDouble(object? nullValue)
: base(nullValue)
{
}
public override int Run(InterpretedFrame frame)
{
object? right = frame.Pop();
object? left = frame.Pop();
if (left == null || right == null)
{
frame.Push(_nullValue);
}
else
{
frame.Push((double)left > (double)right);
}
return 1;
}
}
public static Instruction Create(Type type, bool liftedToNull = false)
{
Debug.Assert(!type.IsEnum);
if (liftedToNull)
{
return type.GetNonNullableType().GetTypeCode() switch
{
TypeCode.SByte => s_liftedToNullSByte ??= new GreaterThanSByte(null),
TypeCode.Int16 => s_liftedToNullInt16 ??= new GreaterThanInt16(null),
TypeCode.Char => s_liftedToNullChar ??= new GreaterThanChar(null),
TypeCode.Int32 => s_liftedToNullInt32 ??= new GreaterThanInt32(null),
TypeCode.Int64 => s_liftedToNullInt64 ??= new GreaterThanInt64(null),
TypeCode.Byte => s_liftedToNullByte ??= new GreaterThanByte(null),
TypeCode.UInt16 => s_liftedToNullUInt16 ??= new GreaterThanUInt16(null),
TypeCode.UInt32 => s_liftedToNullUInt32 ??= new GreaterThanUInt32(null),
TypeCode.UInt64 => s_liftedToNullUInt64 ??= new GreaterThanUInt64(null),
TypeCode.Single => s_liftedToNullSingle ??= new GreaterThanSingle(null),
TypeCode.Double => s_liftedToNullDouble ??= new GreaterThanDouble(null),
_ => throw ContractUtils.Unreachable,
};
}
else
{
return type.GetNonNullableType().GetTypeCode() switch
{
TypeCode.SByte => s_SByte ??= new GreaterThanSByte(Utils.BoxedFalse),
TypeCode.Int16 => s_Int16 ??= new GreaterThanInt16(Utils.BoxedFalse),
TypeCode.Char => s_Char ??= new GreaterThanChar(Utils.BoxedFalse),
TypeCode.Int32 => s_Int32 ??= new GreaterThanInt32(Utils.BoxedFalse),
TypeCode.Int64 => s_Int64 ??= new GreaterThanInt64(Utils.BoxedFalse),
TypeCode.Byte => s_Byte ??= new GreaterThanByte(Utils.BoxedFalse),
TypeCode.UInt16 => s_UInt16 ??= new GreaterThanUInt16(Utils.BoxedFalse),
TypeCode.UInt32 => s_UInt32 ??= new GreaterThanUInt32(Utils.BoxedFalse),
TypeCode.UInt64 => s_UInt64 ??= new GreaterThanUInt64(Utils.BoxedFalse),
TypeCode.Single => s_Single ??= new GreaterThanSingle(Utils.BoxedFalse),
TypeCode.Double => s_Double ??= new GreaterThanDouble(Utils.BoxedFalse),
_ => throw ContractUtils.Unreachable,
};
}
}
}
}
|