Ejemplo n.º 1
0
        private static void ExtractStaticInitializers(ClassWrapper wrapper, MethodWrapper
                                                      method)
        {
            RootStatement root      = method.root;
            StructClass   cl        = wrapper.GetClassStruct();
            Statement     firstData = Statements.FindFirstData(root);

            if (firstData != null)
            {
                bool inlineInitializers = cl.HasModifier(ICodeConstants.Acc_Interface) || cl.HasModifier
                                              (ICodeConstants.Acc_Enum);
                while (!(firstData.GetExprents().Count == 0))
                {
                    Exprent exprent = firstData.GetExprents()[0];
                    bool    found   = false;
                    if (exprent.type == Exprent.Exprent_Assignment)
                    {
                        AssignmentExprent assignExpr = (AssignmentExprent)exprent;
                        if (assignExpr.GetLeft().type == Exprent.Exprent_Field)
                        {
                            FieldExprent fExpr = (FieldExprent)assignExpr.GetLeft();
                            if (fExpr.IsStatic() && fExpr.GetClassname().Equals(cl.qualifiedName) && cl.HasField
                                    (fExpr.GetName(), fExpr.GetDescriptor().descriptorString))
                            {
                                // interfaces fields should always be initialized inline
                                if (inlineInitializers || IsExprentIndependent(assignExpr.GetRight(), method))
                                {
                                    string keyField = InterpreterUtil.MakeUniqueKey(fExpr.GetName(), fExpr.GetDescriptor
                                                                                        ().descriptorString);
                                    if (!wrapper.GetStaticFieldInitializers().ContainsKey(keyField))
                                    {
                                        wrapper.GetStaticFieldInitializers().AddWithKey(assignExpr.GetRight(), keyField);
                                        firstData.GetExprents().RemoveAtReturningValue(0);
                                        found = true;
                                    }
                                }
                            }
                        }
                    }
                    if (!found)
                    {
                        break;
                    }
                }
            }
        }
Ejemplo n.º 2
0
        private void BuildInheritanceTree()
        {
            Dictionary <string, ClassWrapperNode> nodes = new Dictionary <string, ClassWrapperNode
                                                                          >();
            Dictionary <string, StructClass> classes        = context.GetClasses();
            List <ClassWrapperNode>          rootClasses    = new List <ClassWrapperNode>();
            List <ClassWrapperNode>          rootInterfaces = new List <ClassWrapperNode>();

            foreach (StructClass cl in classes.Values)
            {
                if (!cl.IsOwn())
                {
                    continue;
                }
                LinkedList <StructClass>      stack         = new LinkedList <StructClass>();
                LinkedList <ClassWrapperNode> stackSubNodes = new LinkedList <ClassWrapperNode>();
                stack.AddLast(cl);
                stackSubNodes.AddLast((ClassWrapperNode)null);
                while (!(stack.Count == 0))
                {
                    StructClass      clStr     = Sharpen.Collections.RemoveFirst(stack);
                    ClassWrapperNode child     = Sharpen.Collections.RemoveFirst(stackSubNodes);
                    ClassWrapperNode node      = nodes.GetOrNull(clStr.qualifiedName);
                    bool             isNewNode = (node == null);
                    if (isNewNode)
                    {
                        Sharpen.Collections.Put(nodes, clStr.qualifiedName, node = new ClassWrapperNode(clStr
                                                                                                        ));
                    }
                    if (child != null)
                    {
                        node.AddSubclass(child);
                    }
                    if (!isNewNode)
                    {
                        break;
                    }
                    else
                    {
                        bool isInterface  = clStr.HasModifier(ICodeConstants.Acc_Interface);
                        bool found_parent = false;
                        if (isInterface)
                        {
                            foreach (string ifName in clStr.GetInterfaceNames())
                            {
                                StructClass clParent = classes.GetOrNull(ifName);
                                if (clParent != null)
                                {
                                    stack.AddLast(clParent);
                                    stackSubNodes.AddLast(node);
                                    found_parent = true;
                                }
                            }
                        }
                        else if (clStr.superClass != null)
                        {
                            // null iff java/lang/Object
                            StructClass clParent = classes.GetOrNull(clStr.superClass.GetString());
                            if (clParent != null)
                            {
                                stack.AddLast(clParent);
                                stackSubNodes.AddLast(node);
                                found_parent = true;
                            }
                        }
                        if (!found_parent)
                        {
                            // no super class or interface
                            (isInterface ? rootInterfaces : rootClasses).Add(node);
                        }
                    }
                }
            }
            this.rootClasses    = rootClasses;
            this.rootInterfaces = rootInterfaces;
        }
Ejemplo n.º 3
0
        public override TextBuffer ToJava(int indent, BytecodeMappingTracer tracer)
        {
            TextBuffer buf             = new TextBuffer();
            string     super_qualifier = null;
            bool       isInstanceThis  = false;

            tracer.AddMapping(bytecode);
            if (instance is InvocationExprent)
            {
                ((InvocationExprent)instance).MarkUsingBoxingResult();
            }
            if (isStatic__)
            {
                if (IsBoxingCall() && canIgnoreBoxing)
                {
                    // process general "boxing" calls, e.g. 'Object[] data = { true }' or 'Byte b = 123'
                    // here 'byte' and 'short' values do not need an explicit narrowing type cast
                    ExprProcessor.GetCastedExprent(lstParameters[0], descriptor.@params[0], buf, indent
                                                   , false, false, false, false, tracer);
                    return(buf);
                }
                ClassesProcessor.ClassNode node = (ClassesProcessor.ClassNode)DecompilerContext.GetProperty
                                                      (DecompilerContext.Current_Class_Node);
                if (node == null || !classname.Equals(node.classStruct.qualifiedName))
                {
                    buf.Append(DecompilerContext.GetImportCollector().GetShortNameInClassContext(ExprProcessor
                                                                                                 .BuildJavaClassName(classname)));
                }
            }
            else
            {
                if (instance != null && instance.type == Exprent.Exprent_Var)
                {
                    VarExprent     instVar = (VarExprent)instance;
                    VarVersionPair varPair = new VarVersionPair(instVar);
                    VarProcessor   varProc = instVar.GetProcessor();
                    if (varProc == null)
                    {
                        MethodWrapper currentMethod = (MethodWrapper)DecompilerContext.GetProperty(DecompilerContext
                                                                                                   .Current_Method_Wrapper);
                        if (currentMethod != null)
                        {
                            varProc = currentMethod.varproc;
                        }
                    }
                    string this_classname = null;
                    if (varProc != null)
                    {
                        this_classname = varProc.GetThisVars().GetOrNull(varPair);
                    }
                    if (this_classname != null)
                    {
                        isInstanceThis = true;
                        if (invocationTyp == Invoke_Special)
                        {
                            if (!classname.Equals(this_classname))
                            {
                                // TODO: direct comparison to the super class?
                                StructClass cl          = DecompilerContext.GetStructContext().GetClass(classname);
                                bool        isInterface = cl != null && cl.HasModifier(ICodeConstants.Acc_Interface);
                                super_qualifier = !isInterface ? this_classname : classname;
                            }
                        }
                    }
                }
                if (functype == Typ_General)
                {
                    if (super_qualifier != null)
                    {
                        TextUtil.WriteQualifiedSuper(buf, super_qualifier);
                    }
                    else if (instance != null)
                    {
                        TextBuffer res = instance.ToJava(indent, tracer);
                        if (IsUnboxingCall())
                        {
                            // we don't print the unboxing call - no need to bother with the instance wrapping / casting
                            buf.Append(res);
                            return(buf);
                        }
                        VarType rightType = instance.GetExprType();
                        VarType leftType  = new VarType(ICodeConstants.Type_Object, 0, classname);
                        if (rightType.Equals(VarType.Vartype_Object) && !leftType.Equals(rightType))
                        {
                            buf.Append("((").Append(ExprProcessor.GetCastTypeName(leftType)).Append(")");
                            if (instance.GetPrecedence() >= FunctionExprent.GetPrecedence(FunctionExprent.Function_Cast
                                                                                          ))
                            {
                                res.Enclose("(", ")");
                            }
                            buf.Append(res).Append(")");
                        }
                        else if (instance.GetPrecedence() > GetPrecedence())
                        {
                            buf.Append("(").Append(res).Append(")");
                        }
                        else
                        {
                            buf.Append(res);
                        }
                    }
                }
            }
            switch (functype)
            {
            case Typ_General:
            {
                if (VarExprent.Var_Nameless_Enclosure.Equals(buf.ToString()))
                {
                    buf = new TextBuffer();
                }
                if (buf.Length() > 0)
                {
                    buf.Append(".");
                }
                buf.Append(name);
                if (invocationTyp == Invoke_Dynamic)
                {
                    buf.Append("<invokedynamic>");
                }
                buf.Append("(");
                break;
            }

            case Typ_Clinit:
            {
                throw new Exception("Explicit invocation of " + ICodeConstants.Clinit_Name);
            }

            case Typ_Init:
            {
                if (super_qualifier != null)
                {
                    buf.Append("super(");
                }
                else if (isInstanceThis)
                {
                    buf.Append("this(");
                }
                else if (instance != null)
                {
                    buf.Append(instance.ToJava(indent, tracer)).Append(".<init>(");
                }
                else
                {
                    throw new Exception("Unrecognized invocation of " + ICodeConstants.Init_Name);
                }
                break;
            }
            }
            List <VarVersionPair> mask = null;
            bool isEnum = false;

            if (functype == Typ_Init)
            {
                ClassesProcessor.ClassNode newNode = DecompilerContext.GetClassProcessor().GetMapRootClasses
                                                         ().GetOrNull(classname);
                if (newNode != null)
                {
                    mask = ExprUtil.GetSyntheticParametersMask(newNode, stringDescriptor, lstParameters
                                                               .Count);
                    isEnum = newNode.classStruct.HasModifier(ICodeConstants.Acc_Enum) && DecompilerContext
                             .GetOption(IFernflowerPreferences.Decompile_Enum);
                }
            }
            BitSet setAmbiguousParameters = GetAmbiguousParameters();

            // omit 'new Type[] {}' for the last parameter of a vararg method call
            if (lstParameters.Count == [email protected] && IsVarArgCall())
            {
                Exprent lastParam = lstParameters[lstParameters.Count - 1];
                if (lastParam.type == Exprent_New && lastParam.GetExprType().arrayDim >= 1)
                {
                    ((NewExprent)lastParam).SetVarArgParam(true);
                }
            }
            bool firstParameter = true;
            int  start          = isEnum ? 2 : 0;

            for (int i = start; i < lstParameters.Count; i++)
            {
                if (mask == null || mask[i] == null)
                {
                    TextBuffer buff      = new TextBuffer();
                    bool       ambiguous = setAmbiguousParameters.Get(i);
                    // 'byte' and 'short' literals need an explicit narrowing type cast when used as a parameter
                    ExprProcessor.GetCastedExprent(lstParameters[i], descriptor.@params[i], buff, indent
                                                   , true, ambiguous, true, true, tracer);
                    // the last "new Object[0]" in the vararg call is not printed
                    if (buff.Length() > 0)
                    {
                        if (!firstParameter)
                        {
                            buf.Append(", ");
                        }
                        buf.Append(buff);
                    }
                    firstParameter = false;
                }
            }
            buf.Append(')');
            return(buf);
        }