/// <summary> /// Create code to unbox the given source value into the given type. /// </summary> public static RLRange Unbox(this IRLBuilder builder, ISourceLocation sequencePoint, RegisterSpec source, XTypeReference type, AssemblyCompiler compiler, DexTargetPackage targetPackage, IRegisterAllocator frame) { if (type.IsPrimitive) { RCode convertAfterCode; var rUnboxed = frame.AllocateTemp(type.GetReference(targetPackage)); var unboxValueMethod = type.GetUnboxValueMethod(compiler, targetPackage, out convertAfterCode); var first = builder.Add(sequencePoint, RCode.Invoke_static, unboxValueMethod, source); var last = builder.Add(sequencePoint, type.MoveResult(), rUnboxed); if (convertAfterCode != RCode.Nop) { last = builder.Add(sequencePoint, convertAfterCode, rUnboxed, rUnboxed); } return(new RLRange(first, last, rUnboxed)); } XTypeDefinition enumTypeDef; if (type.IsEnum(out enumTypeDef)) { var rUnboxed = frame.AllocateTemp(type.GetReference(targetPackage)); var unboxValueMethod = enumTypeDef.Methods.First(x => x.Name == NameConstants.Enum.UnboxMethodName).GetReference(targetPackage); var first = builder.Add(sequencePoint, RCode.Invoke_static, unboxValueMethod, source); var last = builder.Add(sequencePoint, type.MoveResult(), rUnboxed); return(new RLRange(first, last, rUnboxed)); } if (!type.IsGenericParameter) { // Just cast var checkCast = builder.Add(sequencePoint, RCode.Check_cast, type.GetReference(targetPackage), source); return(new RLRange(checkCast, source)); } // Do nothing var nop = builder.Add(sequencePoint, RCode.Nop); return(new RLRange(nop, source)); }