Windows-powershell / PowerShell-master /src /System.Management.Automation /engine /interpreter /AddInstruction.cs
| /* **************************************************************************** | |
| * | |
| * Copyright (c) Microsoft Corporation. | |
| * | |
| * This source code is subject to terms and conditions of the Apache License, Version 2.0. A | |
| * copy of the license can be found in the License.html file at the root of this distribution. If | |
| * you cannot locate the Apache License, Version 2.0, please send an email to | |
| * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound | |
| * by the terms of the Apache License, Version 2.0. | |
| * | |
| * You must not remove this notice, or any other, from this software. | |
| * | |
| * | |
| * ***************************************************************************/ | |
| using System.Diagnostics; | |
| namespace System.Management.Automation.Interpreter | |
| { | |
| internal abstract class AddInstruction : Instruction | |
| { | |
| private static Instruction s_int16, s_int32, s_int64, s_UInt16, s_UInt32, s_UInt64, s_single, s_double; | |
| public override int ConsumedStack { get { return 2; } } | |
| public override int ProducedStack { get { return 1; } } | |
| private AddInstruction() | |
| { | |
| } | |
| internal sealed class AddInt32 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = ScriptingRuntimeHelpers.Int32ToObject(unchecked((Int32)l + (Int32)r)); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddInt16 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Int16)unchecked((Int16)l + (Int16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddInt64 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Int64)unchecked((Int64)l + (Int64)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddUInt16 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt16)unchecked((UInt16)l + (UInt16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddUInt32 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt32)unchecked((UInt32)l + (UInt32)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddUInt64 : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt64)unchecked((Int16)l + (Int16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddSingle : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Single)((Single)l + (Single)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddDouble : AddInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (double)l + (double)r; | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| public static Instruction Create(Type type) | |
| { | |
| Debug.Assert(!type.IsEnum); | |
| switch (type.GetTypeCode()) | |
| { | |
| case TypeCode.Int16: return s_int16 ??= new AddInt16(); | |
| case TypeCode.Int32: return s_int32 ??= new AddInt32(); | |
| case TypeCode.Int64: return s_int64 ??= new AddInt64(); | |
| case TypeCode.UInt16: return s_UInt16 ??= new AddUInt16(); | |
| case TypeCode.UInt32: return s_UInt32 ??= new AddUInt32(); | |
| case TypeCode.UInt64: return s_UInt64 ??= new AddUInt64(); | |
| case TypeCode.Single: return s_single ??= new AddSingle(); | |
| case TypeCode.Double: return s_double ??= new AddDouble(); | |
| default: | |
| throw Assert.Unreachable; | |
| } | |
| } | |
| public override string ToString() | |
| { | |
| return "Add()"; | |
| } | |
| } | |
| internal abstract class AddOvfInstruction : Instruction | |
| { | |
| private static Instruction s_int16, s_int32, s_int64, s_UInt16, s_UInt32, s_UInt64, s_single, s_double; | |
| public override int ConsumedStack { get { return 2; } } | |
| public override int ProducedStack { get { return 1; } } | |
| private AddOvfInstruction() | |
| { | |
| } | |
| internal sealed class AddOvfInt32 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = ScriptingRuntimeHelpers.Int32ToObject(checked((Int32)l + (Int32)r)); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfInt16 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Int16)checked((Int16)l + (Int16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfInt64 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Int64)checked((Int64)l + (Int64)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfUInt16 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt16)checked((UInt16)l + (UInt16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfUInt32 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt32)checked((UInt32)l + (UInt32)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfUInt64 : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (UInt64)checked((Int16)l + (Int16)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfSingle : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (Single)((Single)l + (Single)r); | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| internal sealed class AddOvfDouble : AddOvfInstruction | |
| { | |
| public override int Run(InterpretedFrame frame) | |
| { | |
| object l = frame.Data[frame.StackIndex - 2]; | |
| object r = frame.Data[frame.StackIndex - 1]; | |
| frame.Data[frame.StackIndex - 2] = (double)l + (double)r; | |
| frame.StackIndex--; | |
| return +1; | |
| } | |
| } | |
| public static Instruction Create(Type type) | |
| { | |
| Debug.Assert(!type.IsEnum); | |
| switch (type.GetTypeCode()) | |
| { | |
| case TypeCode.Int16: return s_int16 ??= new AddOvfInt16(); | |
| case TypeCode.Int32: return s_int32 ??= new AddOvfInt32(); | |
| case TypeCode.Int64: return s_int64 ??= new AddOvfInt64(); | |
| case TypeCode.UInt16: return s_UInt16 ??= new AddOvfUInt16(); | |
| case TypeCode.UInt32: return s_UInt32 ??= new AddOvfUInt32(); | |
| case TypeCode.UInt64: return s_UInt64 ??= new AddOvfUInt64(); | |
| case TypeCode.Single: return s_single ??= new AddOvfSingle(); | |
| case TypeCode.Double: return s_double ??= new AddOvfDouble(); | |
| default: | |
| throw Assert.Unreachable; | |
| } | |
| } | |
| public override string ToString() | |
| { | |
| return "AddOvf()"; | |
| } | |
| } | |
| } | |