4 // Authors: Marek Safar (marek.safar@gmail.com)
6 // Copyright 2014 Xamarin Inc
8 // Permission is hereby granted, free of charge, to any person obtaining
9 // a copy of this software and associated documentation files (the
10 // "Software"), to deal in the Software without restriction, including
11 // without limitation the rights to use, copy, modify, merge, publish,
12 // distribute, sublicense, and/or sell copies of the Software, and to
13 // permit persons to whom the Software is furnished to do so, subject to
14 // the following conditions:
16 // The above copyright notice and this permission notice shall be
17 // included in all copies or substantial portions of the Software.
19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Diagnostics;
31 using Microsoft.Scripting.Runtime;
32 using Microsoft.Scripting.Utils;
34 namespace Microsoft.Scripting.Interpreter {
35 internal abstract class XorInstruction : Instruction {
36 private static Instruction _Int16, _Int32, _Int64, _UInt16, _UInt32, _UInt64, _Boolean;
38 public override int ConsumedStack { get { return 2; } }
39 public override int ProducedStack { get { return 1; } }
41 private XorInstruction() {
44 internal sealed class XorInt32 : XorInstruction {
45 public override int Run(InterpretedFrame frame) {
46 object l = frame.Data[frame.StackIndex - 2];
47 object r = frame.Data[frame.StackIndex - 1];
48 frame.Data[frame.StackIndex - 2] = ScriptingRuntimeHelpers.Int32ToObject((Int32)l ^ (Int32)r);
54 internal sealed class XorInt16 : XorInstruction {
55 public override int Run(InterpretedFrame frame) {
56 object l = frame.Data[frame.StackIndex - 2];
57 object r = frame.Data[frame.StackIndex - 1];
58 frame.Data[frame.StackIndex - 2] = (Int16)((Int16)l ^ (Int16)r);
64 internal sealed class XorInt64 : XorInstruction {
65 public override int Run(InterpretedFrame frame) {
66 object l = frame.Data[frame.StackIndex - 2];
67 object r = frame.Data[frame.StackIndex - 1];
68 frame.Data[frame.StackIndex - 2] = (Int64)((Int64)l ^ (Int64)r);
74 internal sealed class XorUInt16 : XorInstruction {
75 public override int Run(InterpretedFrame frame) {
76 object l = frame.Data[frame.StackIndex - 2];
77 object r = frame.Data[frame.StackIndex - 1];
78 frame.Data[frame.StackIndex - 2] = (UInt16)((UInt16)l ^ (UInt16)r);
84 internal sealed class XorUInt32 : XorInstruction {
85 public override int Run(InterpretedFrame frame) {
86 object l = frame.Data[frame.StackIndex - 2];
87 object r = frame.Data[frame.StackIndex - 1];
88 frame.Data[frame.StackIndex - 2] = (UInt32)((UInt32)l ^ (UInt32)r);
94 internal sealed class XorUInt64 : XorInstruction {
95 public override int Run(InterpretedFrame frame) {
96 object l = frame.Data[frame.StackIndex - 2];
97 object r = frame.Data[frame.StackIndex - 1];
98 frame.Data[frame.StackIndex - 2] = (UInt64)((UInt64)l ^ (UInt64)r);
104 internal sealed class XorBoolean : XorInstruction {
105 public override int Run(InterpretedFrame frame) {
106 object l = frame.Data[frame.StackIndex - 2];
107 object r = frame.Data[frame.StackIndex - 1];
108 frame.Data[frame.StackIndex - 2] = (Boolean)((Boolean)l ^ (Boolean)r);
114 public static Instruction Create(Type type) {
115 Debug.Assert(!type.IsEnum());
116 switch (type.GetTypeCode()) {
117 case TypeCode.Int16: return _Int16 ?? (_Int16 = new XorInt16());
118 case TypeCode.Int32: return _Int32 ?? (_Int32 = new XorInt32());
119 case TypeCode.Int64: return _Int64 ?? (_Int64 = new XorInt64());
120 case TypeCode.UInt16: return _UInt16 ?? (_UInt16 = new XorUInt16());
121 case TypeCode.UInt32: return _UInt32 ?? (_UInt32 = new XorUInt32());
122 case TypeCode.UInt64: return _UInt64 ?? (_UInt64 = new XorUInt64());
123 case TypeCode.Boolean: return _Boolean ?? (_Boolean = new XorBoolean());
126 throw Assert.Unreachable;
130 public override string ToString() {