C# XTypeReference.IsUInt16方法代码示例

        /// <summary>
        /// Create code to box the given source value into the given type.
        /// </summary>
        public static RLRange Box(this IRLBuilder builder, ISourceLocation sequencePoint, RegisterSpec source, XTypeReference type, DexTargetPackage targetPackage, IRegisterAllocator frame)
        {
            if (type.IsPrimitive)
            {
                if (type.IsByte()) builder.Add(sequencePoint, RCode.Int_to_byte, source.Register, source.Register);
                else if (type.IsUInt16()) builder.Add(sequencePoint, RCode.Int_to_short, source.Register, source.Register);
                // Call appropriate valueOf method
                var boxedType = type.Module.TypeSystem.Object;
                var r = frame.AllocateTemp(boxedType.GetReference(targetPackage));
                var call = builder.Add(sequencePoint, RCode.Invoke_static, type.GetBoxValueOfMethod(), source.Registers);
                var last = builder.Add(sequencePoint, RCode.Move_result_object, r);
                return new RLRange(call, last, r);
            }
            if (type.IsGenericParameter)
            {
                var nop = builder.Add(sequencePoint, RCode.Nop);
                return new RLRange(nop, source);
            }
            XTypeDefinition typeDef ;
            if (type.TryResolve(out typeDef) && (typeDef.IsEnum))
            {
                // Call appropriate valueOf method
                /*var boxedType = type.Module.TypeSystem.Object;
                var r = frame.AllocateTemp(boxedType.GetReference(target, nsConverter));
                var call = builder.Add(sequencePoint, RCode.Invoke_static, typeDef.GetEnumUnderlyingType().GetBoxValueOfMethod(), source.Registers);
                var last = builder.Add(sequencePoint, RCode.Move_result_object, r);
                return new RLRange(call, last, r);*/
            }

            // Just cast
            var checkCast = builder.Add(sequencePoint, RCode.Check_cast, type.GetReference(targetPackage), source);
            return new RLRange(checkCast, source);
        }

        /// <summary>
        /// Convert the result of the given node to uint8/uint16 if needed.
        /// </summary>
        private static void ConvertIfNeeded(AstExpression node, XTypeReference valueType, AstExpression parent)
        {
            AstCode convCode;
            if (valueType.IsByte())
            {
                // Convert from int to uint8
                convCode = AstCode.Int_to_ubyte;
            }
            else if (valueType.IsUInt16())
            {
                // Convert from int to uint16
                convCode = AstCode.Int_to_ushort;
            }
            else if (valueType.IsChar())
            {
                // Convert from int to uint16
                convCode = AstCode.Conv_U2;
            }
            else
            {
                // Do not convert
                return;
            }

            // Avoid recursion
            if ((parent != null) && (parent.Code == convCode))
                return;

            // Copy load expression
            var clone = new AstExpression(node);

            // Convert node
            node.Code = convCode;
            node.Arguments.Clear();
            node.Arguments.Add(clone);
            node.Operand = null;
            node.InferredType = valueType;
            
            // keep the expected type!
            node.ExpectedType = clone.ExpectedType;
            clone.ExpectedType = valueType;
            
        }

 /// <summary>
 /// Convert the given argument if it does not match the target type.
 /// </summary>
 private static void ConvertIfNeeded(AstExpression arg, XTypeReference targetType)
 {
     var argType = arg.GetResultType();
     if (!targetType.IsSame(argType))
     {
         if (targetType.IsChar())
         {
             if (argType.IsUInt16() || argType.IsByte()) Convert(arg, AstCode.Conv_U2, targetType);
         }
         else if (targetType.IsUInt16())
         {
             if (argType.IsChar() || argType.IsByte()) Convert(arg, AstCode.Int_to_ushort, targetType);
         }
         else if (targetType.IsInt16())
         {
             if (argType.IsChar() || argType.IsByte()) Convert(arg, AstCode.Conv_I2, targetType);
         }
     }
 }

        /// <summary>
        /// Emit code (if needed) to convert a value from source type to destination type.
        /// This method is used in "store" opcodes such stloc, stfld, stsfld, call
        /// </summary>
        internal static RLRange ConvertTypeBeforeStore(this IRLBuilder builder, ISourceLocation sequencePoint, XTypeReference sourceType, XTypeReference destinationType, RegisterSpec source, DexTargetPackage targetPackage, IRegisterAllocator frame, AssemblyCompiler compiler, out bool converted)
        {
            converted = false;
            if (sourceType.IsSame(destinationType))
            {
                // Unsigned conversions
                if (sourceType.IsByte())
                {
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    var ins = builder.Add(sequencePoint, RCode.Int_to_byte, tmp.Result, tmp.Result);
                    converted = true;
                    return new RLRange(tmp, ins, tmp.Result);
                }
                else if (sourceType.IsUInt16())
                {
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    var ins = builder.Add(sequencePoint, RCode.Int_to_short, tmp.Result, tmp.Result);
                    converted = true;
                    return new RLRange(tmp, ins, tmp.Result);
                }
                return new RLRange(source);
            }

            if (sourceType.IsArray)
            {
                var compilerHelper = compiler.GetDot42InternalType(InternalConstants.CompilerHelperName).Resolve();
                var arrayType = targetPackage.DexFile.GetClass(targetPackage.NameConverter.GetConvertedFullName(compilerHelper));
                var sourceArrayElementType = ((XArrayType)sourceType).ElementType;
                if (destinationType.ExtendsIList())
                {
                    // Use ArrayHelper.AsList to convert
                    var convertMethodName = "AsList";
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
                if (destinationType.ExtendsICollection())
                {
                    // Use ArrayHelper.AsCollection to convert
                    var convertMethodName = "AsCollection";
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
                if (destinationType.ExtendsIEnumerable())
                {
                    // Use ArrayHelper.As...Enumerable to convert
                    var convertMethodName = "AsObjectEnumerable";
                    if (sourceArrayElementType.IsPrimitive)
                    {
                        if (sourceArrayElementType.IsBoolean()) convertMethodName = "AsBoolEnumerable";
                        else if (sourceArrayElementType.IsByte()) convertMethodName = "AsByteEnumerable";
                        else if (sourceArrayElementType.IsSByte()) convertMethodName = "AsSByteEnumerable";
                        else if (sourceArrayElementType.IsChar()) convertMethodName = "AsCharEnumerable";
                        else if (sourceArrayElementType.IsInt16()) convertMethodName = "AsInt16Enumerable";
                        else if (sourceArrayElementType.IsUInt16()) convertMethodName = "AsUInt16Enumerable";
                        else if (sourceArrayElementType.IsInt32()) convertMethodName = "AsInt32Enumerable";
                        else if (sourceArrayElementType.IsUInt32()) convertMethodName = "AsUInt32Enumerable";
                        else if (sourceArrayElementType.IsInt64()) convertMethodName = "AsInt64Enumerable";
                        else if (sourceArrayElementType.IsFloat()) convertMethodName = "AsFloatEnumerable";
                        else if (sourceArrayElementType.IsDouble()) convertMethodName = "AsDoubleEnumerable";
                        else throw new ArgumentOutOfRangeException("Unknown primitive array element type " + sourceArrayElementType);
                    }
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
            }

            // Do not convert
            return new RLRange(source);
        }

 /// <summary>
 /// Returns the method name when converting an array to an IEnumerableT in compiler helper.
 /// 
 /// (not sure if this is the best place for this method...)
 /// </summary>
 public static string GetAsEnumerableTMethodName(XTypeReference sourceArrayElementType)
 {
     var convertMethodName = "AsObjectEnumerable";
     if (sourceArrayElementType.IsPrimitive)
     {
         if (sourceArrayElementType.IsBoolean()) convertMethodName = "AsBoolEnumerable";
         else if (sourceArrayElementType.IsByte()) convertMethodName = "AsByteEnumerable";
         else if (sourceArrayElementType.IsSByte()) convertMethodName = "AsSByteEnumerable";
         else if (sourceArrayElementType.IsChar()) convertMethodName = "AsCharEnumerable";
         else if (sourceArrayElementType.IsInt16()) convertMethodName = "AsInt16Enumerable";
         else if (sourceArrayElementType.IsUInt16()) convertMethodName = "AsUInt16Enumerable";
         else if (sourceArrayElementType.IsInt32()) convertMethodName = "AsInt32Enumerable";
         else if (sourceArrayElementType.IsUInt32()) convertMethodName = "AsUInt32Enumerable";
         else if (sourceArrayElementType.IsInt64()) convertMethodName = "AsInt64Enumerable";
         else if (sourceArrayElementType.IsFloat()) convertMethodName = "AsFloatEnumerable";
         else if (sourceArrayElementType.IsDouble()) convertMethodName = "AsDoubleEnumerable";
         else throw new ArgumentOutOfRangeException("Unknown primitive array element type " + sourceArrayElementType);
     }
     return convertMethodName;
 }

        /// <summary>
        /// Generate an Add opcode.
        /// </summary>
        private static RCode OpcodeForType(XTypeReference type, RCode[] opcodes)
        {
            if (type.IsInt32() || type.IsUInt32() || type.IsInt16() || type.IsUInt16() || type.IsChar() || type.IsByte() || type.IsSByte() || type.IsBoolean()) return opcodes[0];
            if (type.IsInt64() || type.IsUInt64()) return opcodes[1];
            if (type.IsFloat()) return opcodes[2];
            if (type.IsDouble()) return opcodes[3];

            XTypeDefinition typeDef;
            if (type.TryResolve(out typeDef))
            {
                if (typeDef.IsEnum)
                {
                    return OpcodeForType(typeDef.GetEnumUnderlyingType(), opcodes);
                }
            }

            throw new ArgumentException("Unsupported type " + type);
        }

        private static bool CanPullComparisonUp(AstCode code, XTypeReference arg1, XTypeReference arg2, PullTarget target)
        {
            if (arg1 == null || arg2 == null)
                return false;

            bool isReference = arg1.IsDexObject() && arg1.IsDexObject();

            if (!isReference && !arg1.IsSame(arg2))
                return false;

            if (target == PullTarget.Comparison)
                return true;

            if (arg1.Is(XTypeReferenceKind.Float))
                return false;
            if (arg1.IsDexWide())
                return false;

            bool isEq = IsEqualsBranchOrComparison(code);

            if (isEq)
                return true;

            
            bool isUnsigned = arg1.IsUInt16() || arg1.IsUInt32(); // TODO: check if we really have to exclude unsigned.

            if (isReference || isUnsigned)
                return false;

            return true;
        }

        /// <summary>
        /// Emit code (if needed) to convert a value from source type to destination type.
        /// This method is used in "store" opcodes such stloc, stfld, stsfld, call
        /// </summary>
        internal static RLRange ConvertTypeBeforeStore(this IRLBuilder builder, ISourceLocation sequencePoint, XTypeReference sourceType, XTypeReference destinationType, RegisterSpec source, DexTargetPackage targetPackage, IRegisterAllocator frame, AssemblyCompiler compiler, out bool converted)
        {
            converted = false;
            if (sourceType.IsSame(destinationType))
            {
                // Unsigned conversions
                if (sourceType.IsByte())
                {
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    var ins = builder.Add(sequencePoint, RCode.Int_to_byte, tmp.Result, tmp.Result);
                    converted = true;
                    return new RLRange(tmp, ins, tmp.Result);
                }
                else if (sourceType.IsUInt16())
                {
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    var ins = builder.Add(sequencePoint, RCode.Int_to_short, tmp.Result, tmp.Result);
                    converted = true;
                    return new RLRange(tmp, ins, tmp.Result);
                }
                return new RLRange(source);
            }

            if (sourceType.IsArray)
            {
                var compilerHelper = compiler.GetDot42InternalType(InternalConstants.CompilerHelperName).Resolve();
                var arrayType = targetPackage.DexFile.GetClass(targetPackage.NameConverter.GetConvertedFullName(compilerHelper));
                var sourceArrayElementType = ((XArrayType)sourceType).ElementType;
                if (destinationType.ExtendsIList())
                {
                    // Use ArrayHelper.AsList to convert
                    var convertMethodName = "AsList";
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
                if (destinationType.ExtendsICollection())
                {
                    // Use ArrayHelper.AsCollection to convert
                    var convertMethodName = "AsCollection";
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
                if (destinationType.ExtendsIEnumerable())
                {
                    // Use ArrayHelper.As...Enumerable to convert
                    var convertMethodName = "AsObjectEnumerable";
                    if (sourceArrayElementType.IsPrimitive)
                    {
                        if (sourceArrayElementType.IsBoolean()) convertMethodName = "AsBoolEnumerable";
                        else if (sourceArrayElementType.IsByte()) convertMethodName = "AsByteEnumerable";
                        else if (sourceArrayElementType.IsSByte()) convertMethodName = "AsSByteEnumerable";
                        else if (sourceArrayElementType.IsChar()) convertMethodName = "AsCharEnumerable";
                        else if (sourceArrayElementType.IsInt16()) convertMethodName = "AsInt16Enumerable";
                        else if (sourceArrayElementType.IsUInt16()) convertMethodName = "AsUInt16Enumerable";
                        else if (sourceArrayElementType.IsInt32()) convertMethodName = "AsInt32Enumerable";
                        else if (sourceArrayElementType.IsUInt32()) convertMethodName = "AsUInt32Enumerable";
                        else if (sourceArrayElementType.IsInt64()) convertMethodName = "AsInt64Enumerable";
                        else if (sourceArrayElementType.IsFloat()) convertMethodName = "AsFloatEnumerable";
                        else if (sourceArrayElementType.IsDouble()) convertMethodName = "AsDoubleEnumerable";
                        else throw new ArgumentOutOfRangeException("Unknown primitive array element type " + sourceArrayElementType);
                    }
                    var convertMethod = arrayType.GetMethod(convertMethodName);
                    // Add code
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
                    builder.Add(sequencePoint, RCode.Invoke_static, convertMethod, tmp.Result.Register);
                    var last = builder.Add(sequencePoint, RCode.Move_result_object, tmp.Result.Register);
                    converted = true;
                    return new RLRange(tmp, last, tmp.Result);
                }
            }

            if (sourceType.IsGenericParameter && !destinationType.IsSystemObject())
            {
                var gp = (XGenericParameter) sourceType;
                if (gp.Constraints.Length > 0)
                {
                    // we could find the best matching constraint here, and check if we actually
                    // need to cast. This would probably allow us to skip some unneccesary casts.
                    // We would need some sort of IsAssignableFrom though, and I'm not sure we have
                    // this logic with XTypeDefinition implemented yet.
                    // Therefore, we just assume that the original compiler has done its job well,
                    // and always cast to the destination type.
                    // Apparently dex seems not to need a cast when destinationType is an interface. 
                    // Since i'm not to sure about this, we nevertheless insert the cast here. 
                    // [TODO: check if this is needed]
                    var tmp = builder.EnsureTemp(sequencePoint, source, frame);
//.........这里部分代码省略.........