/// <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> /// 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); var cast = builder.Add(sequencePoint, RCode.Check_cast, destinationType.GetReference(targetPackage), tmp.Result); converted = true; return new RLRange(tmp, cast, tmp.Result); } } // Do not convert return new RLRange(source); }