/// <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> /// Reverses the code, taking account float/double NaN comparisons /// </summary> private static AstCode ReverseCode(AstCode code, XTypeReference type) { bool isFlt = type.IsDouble() || type.IsFloat(); if (!isFlt) return code.Reverse(); switch (code) { case AstCode.Ceq: return AstCode.Cne; case AstCode.Cne: return AstCode.Ceq; case AstCode.Cle: return AstCode.Cgt_Un; case AstCode.Cle_Un: return AstCode.Cgt; case AstCode.Clt: return AstCode.Cge_Un; case AstCode.Clt_Un: return AstCode.Cge; case AstCode.Cgt: return AstCode.Cle_Un; case AstCode.Cgt_Un: return AstCode.Cle; case AstCode.Cge: return AstCode.Clt_Un; case AstCode.Cge_Un: return AstCode.Clt; default: throw new ArgumentOutOfRangeException("code", code.ToString()); } }
/// <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); }
/// <summary> /// Create code to initialize a value from an attribute. /// </summary> /// <returns>The register(s) holding the value</returns> private static Register[] CreateInitializeValueInstructions(ISourceLocation seqp, MethodBody body, XTypeReference targetType, CustomAttributeArgument value, AssemblyCompiler compiler, DexTargetPackage targetPackage) { List<Register> result = new List<Register>(); // allocate result, initialize to default value. if (targetType.IsWide()) { Tuple<Register, Register> regs = body.AllocateWideRegister(RCategory.Temp); //body.Instructions.Add(seqp, RCode.Const_wide, 0, regs.Item1); result.Add(regs.Item1); result.Add(regs.Item2); } else if (targetType.IsPrimitive) { Register reg = body.AllocateRegister(RCategory.Temp, RType.Value); //body.Instructions.Add(seqp, RCode.Const, 0, reg); result.Add(reg); } else // object { Register reg = body.AllocateRegister(RCategory.Temp, RType.Object); //body.Instructions.Add(seqp, RCode.Const, 0, reg); result.Add(reg); } // load data if (value.Value == null) // must be a reference type { body.Instructions.Add(seqp, RCode.Const, 0, result[0]); body.Instructions.Add(seqp, RCode.Check_cast, targetType.GetReference(targetPackage), result[0]); return result.ToArray(); } var valueType = XBuilder.AsTypeReference(compiler.Module, value.Type); if (value.Value is CustomAttributeArgument) { // this happens if a type conversion is neccessary var nestedValue = (CustomAttributeArgument)value.Value; valueType = XBuilder.AsTypeReference(compiler.Module, nestedValue.Type); var rOrigValue = CreateInitializeValueInstructions(seqp, body, valueType, nestedValue, compiler, targetPackage); if (!nestedValue.Type.IsPrimitive) { body.Instructions.Add(seqp, RCode.Move_object, result[0], rOrigValue[0]); body.Instructions.Add(seqp, RCode.Check_cast, targetType.GetReference(targetPackage), result[0]); } else if(!targetType.IsPrimitive) { body.Instructions.Add(seqp, RCode.Invoke_static, valueType.GetBoxValueOfMethod(), rOrigValue); body.Instructions.Add(seqp, RCode.Move_result_object, result[0]); body.Instructions.Add(seqp, RCode.Check_cast, targetType.GetReference(targetPackage), result[0]); } else { throw new Exception(string.Format("type converstion in attribute {0}=>{1} not yet supported", valueType.FullName, targetType.FullName)); } } else if (valueType.IsArray) { var array = (CustomAttributeArgument[])value.Value; var elementType = valueType.ElementType; Register rIndex = body.AllocateRegister(RCategory.Temp, RType.Value); body.Instructions.Add(seqp, RCode.Const, array.Length, rIndex); body.Instructions.Add(seqp, RCode.New_array, valueType.GetReference(targetPackage), result[0], rIndex); // iterate through each value for (int i = 0; i < array.Length; i++) { Register rLoaded = CreateInitializeValueInstructions(seqp, body, elementType, array[i], compiler, targetPackage)[0]; body.Instructions.Add(seqp, RCode.Const, i, rIndex); body.Instructions.Add(seqp, valueType.APut(), rLoaded, result[0], rIndex); } } else if (targetType.IsEnum()) { var enumClass = (targetType.IsEnum()? targetType:valueType).GetReference(targetPackage) ; Register rEnumClass = body.AllocateRegister(RCategory.Temp, RType.Object); body.Instructions.Add(seqp, RCode.Const_class, enumClass, rEnumClass); long lVal = Convert.ToInt64(value.Value); if (lVal <= int.MaxValue && lVal >= int.MinValue) { Register regTmp = body.AllocateRegister(RCategory.Temp, RType.Value); body.Instructions.Add(seqp, RCode.Const, (int)lVal, regTmp); var get = compiler.GetDot42InternalType("Enum").Resolve() .Methods.Single(p => p.Name == "Get" && p.Parameters.Count == 2 && !p.Parameters[1].ParameterType.IsWide()) .GetReference(targetPackage); body.Instructions.Add(seqp, RCode.Invoke_static, get, rEnumClass, regTmp); body.Instructions.Add(seqp, targetType.MoveResult(), result[0]); } else { var regTmp = body.AllocateWideRegister(RCategory.Temp); body.Instructions.Add(seqp, RCode.Const, (long)lVal, regTmp.Item1); var get = compiler.GetDot42InternalType("Enum").Resolve() .Methods.Single(p => p.Name == "Get" && p.Parameters.Count == 2 && p.Parameters[1].ParameterType.IsWide()) .GetReference(targetPackage); body.Instructions.Add(seqp, RCode.Invoke_static, get, rEnumClass, regTmp.Item1); body.Instructions.Add(seqp, targetType.MoveResult(), result[0]); } body.Instructions.Add(seqp, RCode.Check_cast, targetType.GetReference(targetPackage), result[0]); } else if (valueType.IsSystemString()) { body.Instructions.Add(seqp, RCode.Const_string, (string)value.Value, result[0]); } else if (valueType.IsSystemType()) { var type = XBuilder.AsTypeReference(compiler.Module, (TypeReference)value.Value); // TODO: this might not work with typeof(void) on ART runtime. body.Instructions.Add(seqp, RCode.Const_class, type.GetReference(targetPackage), result[0]); } else if (!valueType.IsPrimitive) { // can this happen? throw new Exception("invalid value type in attribute: " + targetType.FullName); } else { if (targetType.IsSystemObject()) { // can this happen? or is this always handled above? // boxing required. var rUnboxed = CreateInitializeValueInstructions(seqp, body, valueType, value, compiler, targetPackage); body.Instructions.Add(seqp, RCode.Invoke_static, valueType.GetBoxValueOfMethod(), rUnboxed); body.Instructions.Add(seqp, RCode.Move_result_object, result[0]); } else if(targetType.IsDouble()) { body.Instructions.Add(seqp, RCode.Const_wide, Convert.ToDouble(value.Value), result[0]); } else if (targetType.IsWide() && valueType.IsUInt64()) { body.Instructions.Add(seqp, RCode.Const_wide, (long)Convert.ToUInt64(value.Value), result[0]); } else if (targetType.IsWide()) { body.Instructions.Add(seqp, RCode.Const_wide, Convert.ToInt64(value.Value), result[0]); } else if (targetType.IsFloat()) { body.Instructions.Add(seqp, RCode.Const, Convert.ToSingle(value.Value), result[0]); } else { body.Instructions.Add(seqp, RCode.Const, (int)Convert.ToInt64(value.Value), result[0]); } } return result.ToArray(); }