Beispiel #1
0
        public override void OutAAProgram(AAProgram node)
        {
            foreach (KeyValuePair <AArrayLengthLvalue, AArrayTempType> pair in data.ArrayLengthTypes)
            {
                AIntConstExp intConst = new AIntConstExp(new TIntegerLiteral(pair.Value.GetIntDim().Text));
                data.ExpTypes[intConst] = new ANamedType(new TIdentifier("int"), null);
                ALvalueExp exp = Util.GetAncestor <ALvalueExp>(pair.Key);
                exp.ReplaceBy(intConst);
            }

            base.OutAAProgram(node);
        }
        public static List <AABlock> Inline(ASimpleInvokeExp node, FinalTransformations finalTrans)
        {
            /*if (Util.GetAncestor<AMethodDecl>(node) != null && Util.GetAncestor<AMethodDecl>(node).GetName().Text == "UIChatFrame_LeaveChannel")
             *  node = node;*/

            SharedData data = finalTrans.data;
            //If this node is inside the condition of a while, replace it with a new local var,
            //make a clone before the while, one before each continue in the while, and one at the end of the while
            //(unless the end is a return or break)
            AABlock pBlock;

            if (Util.HasAncestor <AWhileStm>(node))
            {
                AWhileStm whileStm = Util.GetAncestor <AWhileStm>(node);
                if (Util.IsAncestor(node, whileStm.GetCondition()))
                {
                    List <ASimpleInvokeExp> toInline = new List <ASimpleInvokeExp>();
                    //Above while
                    AALocalDecl replaceVarDecl = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null,
                                                                 Util.MakeClone(data.ExpTypes[node], data),
                                                                 new TIdentifier("whileVar"), null);
                    ALocalLvalue replaceVarRef    = new ALocalLvalue(new TIdentifier("whileVar"));
                    ALvalueExp   replaceVarRefExp = new ALvalueExp(replaceVarRef);
                    data.LocalLinks[replaceVarRef]  = replaceVarDecl;
                    data.ExpTypes[replaceVarRefExp] = data.LvalueTypes[replaceVarRef] = replaceVarDecl.GetType();
                    node.ReplaceBy(replaceVarRefExp);
                    replaceVarDecl.SetInit(node);
                    pBlock = (AABlock)whileStm.Parent();
                    pBlock.GetStatements().Insert(pBlock.GetStatements().IndexOf(whileStm), new ALocalDeclStm(new TSemicolon(";"), replaceVarDecl));
                    toInline.Add(node);


                    //In the end of the while
                    PStm lastStm = whileStm.GetBody();
                    while (lastStm is ABlockStm)
                    {
                        AABlock block = (AABlock)((ABlockStm)lastStm).GetBlock();
                        if (block.GetStatements().Count == 0)
                        {
                            lastStm = null;
                            break;
                        }
                        lastStm = (PStm)block.GetStatements()[block.GetStatements().Count - 1];
                    }
                    if (lastStm == null || !(lastStm is AValueReturnStm || lastStm is AVoidReturnStm || lastStm is ABreakStm))
                    {
                        lastStm = whileStm.GetBody();
                        AABlock block;
                        if (lastStm is ABlockStm)
                        {
                            block = (AABlock)((ABlockStm)lastStm).GetBlock();
                        }
                        else
                        {
                            block = new AABlock(new ArrayList(), new TRBrace("}"));
                            block.GetStatements().Add(lastStm);
                            whileStm.SetBody(new ABlockStm(new TLBrace("{"), block));
                        }

                        replaceVarRef = new ALocalLvalue(new TIdentifier("whileVar"));
                        ASimpleInvokeExp clone = (ASimpleInvokeExp)Util.MakeClone(node, data);
                        toInline.Add(clone);
                        AAssignmentExp assignment = new AAssignmentExp(new TAssign("="), replaceVarRef, clone);
                        data.LocalLinks[replaceVarRef] = replaceVarDecl;
                        data.ExpTypes[assignment]      = data.LvalueTypes[replaceVarRef] = replaceVarDecl.GetType();
                        block.GetStatements().Add(new AExpStm(new TSemicolon(";"), assignment));
                    }

                    //After each continue
                    CloneBeforeContinue cloner = new CloneBeforeContinue(node, replaceVarDecl, data);
                    whileStm.GetBody().Apply(cloner);
                    toInline.AddRange(cloner.replacementExpressions);
                    List <AABlock> visitBlocks = new List <AABlock>();
                    foreach (ASimpleInvokeExp invoke in toInline)
                    {
                        visitBlocks.AddRange(Inline(invoke, finalTrans));
                    }
                    return(visitBlocks);
                }
            }



            AMethodDecl           decl = finalTrans.data.SimpleMethodLinks[node];
            FindAssignedToFormals assignedToFormalsFinder = new FindAssignedToFormals(finalTrans.data);

            decl.Apply(assignedToFormalsFinder);
            List <AALocalDecl> assignedToFormals = assignedToFormalsFinder.AssignedFormals;


            /*
             * inline int foo(int a)
             * {
             *      int b = 2;
             *      int c;
             *      ...
             *      while(...)
             *      {
             *          ...
             *          break;
             *          ...
             *          return c;
             *      }
             *      ...
             *      return 2;
             * }
             *
             * bar(foo(<arg for a>));
             * ->
             *
             * {
             *      bool inlineMethodReturned = false;
             *      int inlineReturner;
             *      int a = <arg for a>;
             *      while (!inlineMethodReturned)
             *      {
             *          int b = 2;
             *          int c;
             *          ...
             *          while(...)
             *          {
             *              ...
             *              break
             *              ...
             *              inlineReturner = c;
             *              inlineMethodReturned = true;
             *              break;
             *          }
             *          if (inlineMethodReturned)
             *          {
             *              break;
             *          }
             *          ...
             *          inlineReturner = 2;
             *          inlineMethodReturned = true;
             *          break;
             *          break;
             *      }
             *      bar(inlineReturner);
             * }
             *
             *
             */


            AABlock outerBlock = new AABlock();
            PExp    exp        = new ABooleanConstExp(new AFalseBool());

            finalTrans.data.ExpTypes[exp] = new ANamedType(new TIdentifier("bool"), null);
            AALocalDecl hasMethodReturnedVar = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null, new ANamedType(new TIdentifier("bool"), null),
                                                               new TIdentifier("hasInlineReturned"), exp);

            finalTrans.data.GeneratedVariables.Add(hasMethodReturnedVar);
            PStm stm = new ALocalDeclStm(new TSemicolon(";"), hasMethodReturnedVar);

            outerBlock.GetStatements().Add(stm);

            AALocalDecl methodReturnerVar = null;

            if (!(decl.GetReturnType() is AVoidType))
            {
                methodReturnerVar = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null, Util.MakeClone(decl.GetReturnType(), finalTrans.data),
                                                    new TIdentifier("inlineReturner"), null);
                stm = new ALocalDeclStm(new TSemicolon(";"), methodReturnerVar);
                outerBlock.GetStatements().Add(stm);
            }

            AABlock afterBlock = new AABlock();

            //A dictionary from the formals of the inline method to a cloneable replacement lvalue
            Dictionary <AALocalDecl, PLvalue> Parameters    = new Dictionary <AALocalDecl, PLvalue>();
            Dictionary <AALocalDecl, PExp>    ParameterExps = new Dictionary <AALocalDecl, PExp>();

            for (int i = 0; i < decl.GetFormals().Count; i++)
            {
                AALocalDecl formal = (AALocalDecl)decl.GetFormals()[i];
                PExp        arg    = (PExp)node.GetArgs()[0];
                PLvalue     lvalue;
                //if ref, dont make a new var
                if (formal.GetRef() != null && arg is ALvalueExp)
                {
                    arg.Apply(new MoveMethodDeclsOut("inlineVar", finalTrans.data));
                    arg.Parent().RemoveChild(arg);
                    lvalue = ((ALvalueExp)arg).GetLvalue();
                }
                else if (!assignedToFormals.Contains(formal) && Util.IsLocal(arg, finalTrans.data))
                {
                    lvalue = new ALocalLvalue(new TIdentifier("I hope I dont make it"));
                    finalTrans.data.LvalueTypes[lvalue] = formal.GetType();
                    finalTrans.data.LocalLinks[(ALocalLvalue)lvalue] = formal;
                    ParameterExps[formal] = arg;
                    arg.Parent().RemoveChild(arg);
                }
                else
                {
                    AAssignmentExp assExp = null;
                    if (formal.GetOut() != null)
                    {
                        //Dont initialize with arg, but assign arg after
                        arg.Apply(new MoveMethodDeclsOut("inlineVar", finalTrans.data));
                        lvalue = ((ALvalueExp)arg).GetLvalue();
                        assExp = new AAssignmentExp(new TAssign("="), lvalue, null);
                        finalTrans.data.ExpTypes[assExp] = finalTrans.data.LvalueTypes[lvalue];
                        arg.Parent().RemoveChild(arg);
                        arg = null;
                    }
                    AALocalDecl parameter = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null, Util.MakeClone(formal.GetType(), finalTrans.data),
                                                            new TIdentifier(formal.GetName().Text),
                                                            arg);
                    stm = new ALocalDeclStm(new TSemicolon(";"), parameter);
                    outerBlock.GetStatements().Add(stm);

                    lvalue = new ALocalLvalue(new TIdentifier(parameter.GetName().Text));
                    finalTrans.data.LvalueTypes[lvalue] = parameter.GetType();
                    finalTrans.data.LocalLinks[(ALocalLvalue)lvalue] = parameter;


                    if (formal.GetOut() != null)
                    {
                        //Dont initialize with arg, but assign arg after
                        ALvalueExp lvalueExp = new ALvalueExp(Util.MakeClone(lvalue, finalTrans.data));
                        finalTrans.data.ExpTypes[lvalueExp] = finalTrans.data.LvalueTypes[lvalue];
                        assExp.SetExp(lvalueExp);
                        afterBlock.GetStatements().Add(new AExpStm(new TSemicolon(";"), assExp));
                    }
                }
                Parameters.Add(formal, lvalue);
            }

            AABlock innerBlock = (AABlock)decl.GetBlock().Clone();

            exp = new ABooleanConstExp(new ATrueBool());
            finalTrans.data.ExpTypes[exp] = new ANamedType(new TIdentifier("bool"), null);
            ABlockStm innerBlockStm = new ABlockStm(new TLBrace("{"), innerBlock);

            bool needWhile = CheckIfWhilesIsNeeded.IsWhileNeeded(decl.GetBlock());

            if (needWhile)
            {
                stm = new AWhileStm(new TLParen("("), exp, innerBlockStm);
            }
            else
            {
                stm = innerBlockStm;
            }
            outerBlock.GetStatements().Add(stm);

            outerBlock.GetStatements().Add(new ABlockStm(new TLBrace("{"), afterBlock));

            //Clone method contents to inner block.
            CloneMethod cloneFixer = new CloneMethod(finalTrans, Parameters, ParameterExps, innerBlockStm);

            decl.GetBlock().Apply(cloneFixer);
            foreach (KeyValuePair <PLvalue, PExp> pair in cloneFixer.ReplaceUsAfter)
            {
                PLvalue    lvalue       = pair.Key;
                PExp       replacement  = Util.MakeClone(pair.Value, finalTrans.data);
                ALvalueExp lvalueParent = (ALvalueExp)lvalue.Parent();
                lvalueParent.ReplaceBy(replacement);
            }
            innerBlockStm.Apply(new FixTypes(finalTrans.data));

            innerBlock.Apply(new FixReturnsAndWhiles(hasMethodReturnedVar, methodReturnerVar, finalTrans.data, needWhile));

            GetNonBlockStm stmFinder = new GetNonBlockStm(false);

            innerBlock.Apply(stmFinder);
            if (needWhile && (stmFinder.Stm == null || !(stmFinder.Stm is ABreakStm)))
            {
                innerBlock.GetStatements().Add(new ABreakStm(new TBreak("break")));
            }

            //Insert before current statement
            ABlockStm outerBlockStm = new ABlockStm(new TLBrace("{"), outerBlock);

            PStm pStm = Util.GetAncestor <PStm>(node);

            pBlock = (AABlock)pStm.Parent();

            pBlock.GetStatements().Insert(pBlock.GetStatements().IndexOf(pStm), outerBlockStm);

            if (node.Parent() == pStm && pStm is AExpStm)
            {
                pBlock.RemoveChild(pStm);
            }
            else
            {
                PLvalue lvalue = new ALocalLvalue(new TIdentifier(methodReturnerVar.GetName().Text));
                finalTrans.data.LvalueTypes[lvalue] = methodReturnerVar.GetType();
                finalTrans.data.LocalLinks[(ALocalLvalue)lvalue] = methodReturnerVar;
                exp = new ALvalueExp(lvalue);
                finalTrans.data.ExpTypes[exp] = methodReturnerVar.GetType();

                node.ReplaceBy(exp);
            }
            return(new List <AABlock>()
            {
                outerBlock
            });
        }
Beispiel #3
0
            /*
             * Apply after assignement fixup
             * Assume no i++
             *
             * Convert usages to method invocations.
             */

            public static void Parse(FinalTransformations finalTrans)
            {
                SharedData data = finalTrans.data;

                foreach (KeyValuePair <APropertyLvalue, APropertyDecl> pair in data.PropertyLinks)
                {
                    APropertyLvalue lvalue   = pair.Key;
                    APropertyDecl   property = pair.Value;

                    if (Util.GetAncestor <AAProgram>(lvalue) == null)
                    {
                        continue;
                    }

                    if (lvalue.Parent() is AAssignmentExp)
                    {
                        AAssignmentExp   assignment = (AAssignmentExp)lvalue.Parent();
                        ASimpleInvokeExp invoke     =
                            new ASimpleInvokeExp(
                                new TIdentifier("Set" + property.GetName().Text, lvalue.GetName().Line,
                                                lvalue.GetName().Pos), new ArrayList()
                        {
                            assignment.GetExp()
                        });
                        assignment.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Setters[property];
                        data.ExpTypes[invoke]          = new AVoidType(new TVoid("void"));
                    }
                    else
                    {
                        ALvalueExp       exp    = (ALvalueExp)lvalue.Parent();
                        ASimpleInvokeExp invoke =
                            new ASimpleInvokeExp(
                                new TIdentifier("Get" + property.GetName().Text, lvalue.GetName().Line,
                                                lvalue.GetName().Pos), new ArrayList()
                        {
                        });
                        exp.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Getters[property];
                        data.ExpTypes[invoke]          = property.GetType();
                    }
                }
                foreach (KeyValuePair <AStructLvalue, APropertyDecl> pair in data.StructPropertyLinks)
                {
                    AStructLvalue   lvalue         = pair.Key;
                    APropertyDecl   property       = pair.Value;
                    AEnrichmentDecl enrichmentDecl = null;
                    AStructDecl     structDecl     = null;
                    if (data.EnrichmentTypeLinks.ContainsKey(data.ExpTypes[lvalue.GetReceiver()]))
                    {
                        enrichmentDecl = data.EnrichmentTypeLinks[data.ExpTypes[lvalue.GetReceiver()]];
                    }
                    if (enrichmentDecl == null)
                    {
                        structDecl = data.StructTypeLinks[(ANamedType)data.ExpTypes[lvalue.GetReceiver()]];
                    }

                    if (Util.GetAncestor <AAProgram>(lvalue) == null)
                    {
                        continue;
                    }

                    PExp structArg;
                    if (structDecl == null || structDecl.GetClassToken() == null)
                    {
                        structArg = lvalue.GetReceiver();
                    }
                    else
                    {
                        //Send pointer
                        ALvalueExp     lvalueExp    = (ALvalueExp)lvalue.GetReceiver();
                        APointerLvalue pointerValue = (APointerLvalue)lvalueExp.GetLvalue();
                        structArg = pointerValue.GetBase();
                    }

                    if (lvalue.Parent() is AAssignmentExp)
                    {
                        AAssignmentExp   assignment = (AAssignmentExp)lvalue.Parent();
                        ASimpleInvokeExp invoke     =
                            new ASimpleInvokeExp(
                                new TIdentifier("Set" + property.GetName().Text, lvalue.GetName().Line,
                                                lvalue.GetName().Pos), new ArrayList()
                        {
                            assignment.GetExp(), structArg
                        });
                        assignment.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Setters[property];
                        data.ExpTypes[invoke]          = new AVoidType(new TVoid("void"));
                    }
                    else
                    {
                        ALvalueExp       exp    = (ALvalueExp)lvalue.Parent();
                        ASimpleInvokeExp invoke =
                            new ASimpleInvokeExp(
                                new TIdentifier("Get" + property.GetName().Text, lvalue.GetName().Line,
                                                lvalue.GetName().Pos), new ArrayList()
                        {
                            structArg
                        });
                        exp.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Getters[property];
                        data.ExpTypes[invoke]          = property.GetType();
                    }
                }
                foreach (KeyValuePair <AArrayLvalue, Util.Pair <APropertyDecl, bool> > pair in data.ArrayPropertyLinks)
                {
                    AArrayLvalue    lvalue         = pair.Key;
                    APropertyDecl   property       = pair.Value.First;
                    bool            implicitMatch  = pair.Value.Second;
                    AEnrichmentDecl enrichmentDecl = null;
                    AStructDecl     structDecl     = null;

                    if (OldEnrichmentParents.ContainsKey(property))
                    {
                        enrichmentDecl = OldEnrichmentParents[property];
                    }
                    else
                    {
                        structDecl = OldStructParents[property];
                    }
                    if (Util.GetAncestor <AAProgram>(lvalue) == null)
                    {
                        continue;
                    }

                    PExp structArg;
                    if (structDecl == null || structDecl.GetClassToken() == null)
                    {
                        structArg = lvalue.GetBase();
                    }
                    else
                    {
                        //Send pointer
                        if (implicitMatch)
                        {
                            structArg = lvalue.GetBase();
                        }
                        else
                        {
                            ALvalueExp     lvalueExp    = (ALvalueExp)lvalue.GetBase();
                            APointerLvalue pointerValue = (APointerLvalue)lvalueExp.GetLvalue();
                            structArg = pointerValue.GetBase();
                        }
                    }

                    /*  if (!(structArg is ALvalueExp &&
                     *    (((ALvalueExp)structArg).GetLvalue() is ALocalLvalue || ((ALvalueExp)structArg).GetLvalue() is AFieldLvalue ||
                     *    ((ALvalueExp)structArg).GetLvalue() is AStructLvalue || ((ALvalueExp)structArg).GetLvalue() is AStructFieldLvalue))
                     * {
                     *    //Make new local
                     *    AALocalDecl decl = new AALocalDecl(new APublicVisibilityModifier(), null, null, null, null,
                     *                                       Util.MakeClone(data.ExpTypes[structArg], data),
                     *                                       new TIdentifier("propertyVar"), structArg);
                     *    ALocalLvalue declRef = new ALocalLvalue(new TIdentifier("propertyVar"));
                     *    structArg = new ALvalueExp(declRef);
                     *    PStm stm = Util.GetAncestor<PStm>(lvalue);
                     * }*/

                    if (lvalue.Parent() is AAssignmentExp)
                    {
                        AAssignmentExp   assignment = (AAssignmentExp)lvalue.Parent();
                        ASimpleInvokeExp invoke     =
                            new ASimpleInvokeExp(
                                new TIdentifier("SetThis", lvalue.GetToken().Line,
                                                lvalue.GetToken().Pos), new ArrayList()
                        {
                            lvalue.GetIndex(), assignment.GetExp(), structArg
                        });
                        assignment.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Setters[property];
                        data.ExpTypes[invoke]          = new AVoidType(new TVoid("void"));
                    }
                    else
                    {
                        ALvalueExp       exp    = (ALvalueExp)lvalue.Parent();
                        ASimpleInvokeExp invoke =
                            new ASimpleInvokeExp(
                                new TIdentifier("GetThis", lvalue.GetToken().Line,
                                                lvalue.GetToken().Pos), new ArrayList()
                        {
                            lvalue.GetIndex(), structArg
                        });
                        exp.ReplaceBy(invoke);
                        data.SimpleMethodLinks[invoke] = data.Getters[property];
                        data.ExpTypes[invoke]          = property.GetType();
                    }
                }
            }