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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.Diagnostics;
using System.Dynamic.Utils;
namespace System.Linq.Expressions.Interpreter
{
internal abstract class MulInstruction : Instruction
{
private static Instruction? s_Int16, s_Int32, s_Int64, s_UInt16, s_UInt32, s_UInt64, s_Single, s_Double;
public override int ConsumedStack => 2;
public override int ProducedStack => 1;
public override string InstructionName => "Mul";
private MulInstruction() { }
private sealed class MulInt16 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)unchecked((short)((short)left * (short)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulInt32 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : ScriptingRuntimeHelpers.Int32ToObject(unchecked((int)left * (int)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulInt64 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)unchecked((long)left * (long)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulUInt16 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)unchecked((ushort)((ushort)left * (ushort)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulUInt32 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)unchecked((uint)left * (uint)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulUInt64 : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)unchecked((ulong)left * (ulong)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulSingle : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)((float)left * (float)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulDouble : MulInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)((double)left * (double)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
public static Instruction Create(Type type)
{
Debug.Assert(type.IsArithmetic());
return type.GetNonNullableType().GetTypeCode() switch
{
TypeCode.Int16 => s_Int16 ??= new MulInt16(),
TypeCode.Int32 => s_Int32 ??= new MulInt32(),
TypeCode.Int64 => s_Int64 ??= new MulInt64(),
TypeCode.UInt16 => s_UInt16 ??= new MulUInt16(),
TypeCode.UInt32 => s_UInt32 ??= new MulUInt32(),
TypeCode.UInt64 => s_UInt64 ??= new MulUInt64(),
TypeCode.Single => s_Single ??= new MulSingle(),
TypeCode.Double => s_Double ??= new MulDouble(),
_ => throw ContractUtils.Unreachable,
};
}
}
internal abstract class MulOvfInstruction : Instruction
{
private static Instruction? s_Int16, s_Int32, s_Int64, s_UInt16, s_UInt32, s_UInt64;
public override int ConsumedStack => 2;
public override int ProducedStack => 1;
public override string InstructionName => "MulOvf";
private MulOvfInstruction() { }
private sealed class MulOvfInt16 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)checked((short)((short)left * (short)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulOvfInt32 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : ScriptingRuntimeHelpers.Int32ToObject(checked((int)left * (int)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulOvfInt64 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)checked((long)left * (long)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulOvfUInt16 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)checked((ushort)((ushort)left * (ushort)right));
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulOvfUInt32 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)checked((uint)left * (uint)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
private sealed class MulOvfUInt64 : MulOvfInstruction
{
public override int Run(InterpretedFrame frame)
{
int index = frame.StackIndex;
object?[] stack = frame.Data;
object? left = stack[index - 2];
if (left != null)
{
object? right = stack[index - 1];
stack[index - 2] = right == null ? null : (object)checked((ulong)left * (ulong)right);
}
frame.StackIndex = index - 1;
return 1;
}
}
public static Instruction Create(Type type)
{
Debug.Assert(type.IsArithmetic());
return type.GetNonNullableType().GetTypeCode() switch
{
TypeCode.Int16 => s_Int16 ??= new MulOvfInt16(),
TypeCode.Int32 => s_Int32 ??= new MulOvfInt32(),
TypeCode.Int64 => s_Int64 ??= new MulOvfInt64(),
TypeCode.UInt16 => s_UInt16 ??= new MulOvfUInt16(),
TypeCode.UInt32 => s_UInt32 ??= new MulOvfUInt32(),
TypeCode.UInt64 => s_UInt64 ??= new MulOvfUInt64(),
_ => MulInstruction.Create(type),
};
}
}
}
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