Package org.apache.flex.abc.instructionlist

Examples of org.apache.flex.abc.instructionlist.InstructionList


     * expression for an MXMLBindingNode
     */
    private InstructionListNode getTargetExprNode(IMXMLUnitData data, IMXMLTagAttributeData attr)
    {
        InstructionListNode expr = null;
        InstructionList il = getTargetInstructions(data, attr);
        if (il != null)
        {
            expr = new InstructionListNode(il);
        }

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        {
            parentStack.add(d);
            d = d == rootTag ? null : d.getParentUnitData();
        }

        InstructionList il = new InstructionList();
        // we're always going to start with "this"
        il.addInstruction(ABCConstants.OP_getlocal0);

        // Walk down the parent stack, and emit get instructions for each tag
        // except for the last one, which is the one we're targeting
        while (parentStack.size() > 1)
        {
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     @param mi - the function's MethodInfo.
     *  @param mbi - the function's MethodBodyInfo.
     */
    public void checkControlFlow(IASNode iNode, MethodInfo mi, MethodBodyInfo mbi)
    {
        InstructionList il = mbi.getInstructionList();

        //  Walk the control flow graph if there are any issues that
        //  require it.
        if  (
                il.size() > 0 &&
                il.lastElement() == ABCGeneratingReducer.synthesizedReturnVoid &&
                SemanticUtils.functionMustReturnValue(iNode, this.project)
            )
        {
            for ( IBasicBlock b: mbi.getCfg().blocksInControlFlowOrder() )
            {
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            // Eg:
            // public class _MyApplication_Styles
            // {
            // }

            final InstructionList cinit = cssCodeGenResult.getClassInitializationInstructions();
            assert cinit.canFallThrough() : "CSSReducer should not append 'returnvoid' to the initialization instructions.";
            cinit.addInstruction(ABCConstants.OP_returnvoid);

            ClassGeneratorHelper classGenerator = new ClassGeneratorHelper(
                        flexProject,
                        emitter,
                        stylesClassName,
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                     mainClassRef.getMName(),
                     (ClassDefinition)flexProject.getBuiltinType(BuiltinType.OBJECT),
                     ClassGeneratorHelper.returnVoid());

            //Create method body for compiledLocales getter
            InstructionList localesInstructionList = new InstructionList();

            for (String locale : locales)
            {
                localesInstructionList.addInstruction(ABCConstants.OP_pushstring, locale);
            }

            localesInstructionList.addInstruction(ABCConstants.OP_newarray, locales.size());
            localesInstructionList.addInstruction(ABCConstants.OP_returnvalue);

            classGen.addCTraitsGetter(new Name("compiledLocales"),
                    new Name(IASLanguageConstants.Array), localesInstructionList);

            //Create method body for compiledLocales getter
            InstructionList bundlesInstructionList = new InstructionList();

            for (String bundleName : frame1Info.compiledResourceBundleNames)
            {
                bundlesInstructionList.addInstruction(ABCConstants.OP_pushstring, bundleName);
            }

            bundlesInstructionList.addInstruction(ABCConstants.OP_newarray, frame1Info.compiledResourceBundleNames.size());
            bundlesInstructionList.addInstruction(ABCConstants.OP_returnvalue);

            classGen.addCTraitsGetter(new Name("compiledResourceBundleNames"),
                    new Name(IASLanguageConstants.Array), bundlesInstructionList);      
           
            //Generate script      
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            // Generate code for the constructor:
            // public function ClassName()
            // {
            //    super();
            // }
            InstructionList classITraitsInit = new InstructionList();
            classITraitsInit.addInstruction(ABCConstants.OP_getlocal0);
            classITraitsInit.addInstruction(ABCConstants.OP_constructsuper, 0);
            classITraitsInit.addInstruction(ABCConstants.OP_returnvoid);
            ClassGeneratorHelper classGen = new ClassGeneratorHelper(flexProject, emitter, flexInitClassName,
                    objectClassDef, Collections.<Name>emptyList(), classITraitsInit);
           
            // Generate code for the static init method:
            // public static function init(mf : IFlexModuleFactory) : void
            // {
            //    new ChildManager(mf);
            //    var local2 : * = new StyleManagerImpl(mf);
            //
            //    // For each effect declared in the application:
            //    EffectManager.mx_internal::registerEffectTrigger(<effectName>, <eventName>);
            //
            //    // For each remote class alias declared in the application
            //    try
            //    {
            //        if (flash.net.getClassByAlias(<remote class alias>) != <class>)
            //        {
            //            flash.net.registerClassAlias(<remote class alias>, <class>);
            //        }
            //    }
            //    catch (e:Error)
            //    {
            //        flash.net.registerClassAlias(<remote class alias>, <class>);
            //    }
            //
            //    var local3 : * = [<names of all inheriting styles declared in the application>];
            //
            //    for each (var local0 : * in local3)
            //    {
            //        local2.registerInheritingStyle(local0);  // local2 is the style manager.
            //    }
            // }
            if (isAppFlexInfo)
            {
                MethodInfo initMethodInfo = new MethodInfo();
                initMethodInfo.setMethodName("FlexInit init method");
                initMethodInfo.setParamTypes(new Vector<Name>(Collections.singleton(new Name("Object"))));
                initMethodInfo.setReturnType(new Name(IASLanguageConstants.void_));
                IMethodVisitor initMethodVisitor = emitter.visitMethod(initMethodInfo);
                initMethodVisitor.visit();
                MethodBodyInfo initMethodBodyInfo = new MethodBodyInfo();
                initMethodBodyInfo.setMethodInfo(initMethodInfo);
                IMethodBodyVisitor initMethodBodyVisitor = initMethodVisitor.visitBody(initMethodBodyInfo);
                initMethodBodyVisitor.visit();
               
                // local0 = temp
                // local1 = module factory argument
                // local2 = style manager
                // local3 = inherited styles array
                InstructionList initMethod = new InstructionList();
                initMethod.addInstruction(ABCConstants.OP_returnvoid);
               
                initMethodBodyVisitor.visitInstructionList(initMethod);
                initMethodBodyVisitor.visitEnd();
                initMethodVisitor.visitEnd();
               
                ITraitVisitor initMethodTraitVisitor =
                    classGen.getCTraitsVisitor().visitMethodTrait(ABCConstants.TRAIT_Method, new Name("init"), 0, initMethodInfo);
                initMethodTraitVisitor.visitStart();
                initMethodTraitVisitor.visitEnd();

                codegenInfoMethod(classGen,
                        flexProject.getCompatibilityVersion(),
                        getMainClassQName(),
                        getPreloaderClassReference(),
                        getRuntimeDPIProviderClassReference(),
                        splashScreenImage,
                        getRootNode(),
                        getTargetAttributes(),
                        flexProject.getLocales(),
                        frame1Info,
                        accessibleClassNames,
                        getFlexInitClassName(),
                        getStylesClassName(),
                        targetSettings.getRuntimeSharedLibraries(),
                        rslInfo,
                        problems,
                        isAppFlexInfo);
               
            }
            else
            {
                MethodInfo initMethodInfo = new MethodInfo();
                initMethodInfo.setMethodName("FlexInit init method");
                initMethodInfo.setParamTypes(new Vector<Name>(Collections.singleton(iModuleFactoryReference.getMName())));
                initMethodInfo.setReturnType(new Name(IASLanguageConstants.void_));
                IMethodVisitor initMethodVisitor = emitter.visitMethod(initMethodInfo);
                initMethodVisitor.visit();
                MethodBodyInfo initMethodBodyInfo = new MethodBodyInfo();
                initMethodBodyInfo.setMethodInfo(initMethodInfo);
                IMethodBodyVisitor initMethodBodyVisitor = initMethodVisitor.visitBody(initMethodBodyInfo);
                initMethodBodyVisitor.visit();
               
                // local0 = temp
                // local1 = module factory argument
                // local2 = style manager
                // local3 = inherited styles array
                InstructionList initMethod = new InstructionList();
               
                // Since we don't need "this", we can kill local0, we'll use it later for something else.
                initMethod.addInstruction(ABCConstants.OP_kill, 0);
                initMethod.addInstruction(ABCConstants.OP_finddef, childManagerReference.getMName());
                initMethod.addInstruction(ABCConstants.OP_getlocal1);
                initMethod.addInstruction(ABCConstants.OP_constructprop, new Object[] { childManagerReference.getMName(), 1 });
                initMethod.addInstruction(ABCConstants.OP_pop);
                initMethod.addInstruction(ABCConstants.OP_finddef, styleManagerImplReference.getMName());
                initMethod.addInstruction(ABCConstants.OP_getlocal1);
                initMethod.addInstruction(ABCConstants.OP_constructprop, new Object[] { styleManagerImplReference.getMName(), 1 });
                initMethod.addInstruction(ABCConstants.OP_setlocal2);
               
                Map<String, String> effectNameToTriggerMap = new TreeMap<String, String>();
                Map<String, Boolean> inheritingStyleMap = new TreeMap<String, Boolean>();
                Map<ClassDefinition, String> remoteClassAliasMap =
                    new TreeMap<ClassDefinition, String>(new Comparator<ClassDefinition>()
                    {
                        @Override
                        public int compare(ClassDefinition o1, ClassDefinition o2)
                        {
                            return o1.getQualifiedName().compareTo(o2.getQualifiedName());
                        }
                    })
                    {
                        private static final long serialVersionUID = 1L;
   
                        /**
                         *  Override so warning messages can be logged.
                         */
                        @Override
                        public String put(ClassDefinition key, String value)
                        {
                            // check for duplicate values and log a warning if any remote
                            // classes try to use the same alias.
                            if (containsValue(value))
                            {
                               for (Map.Entry<ClassDefinition,String> entry  : entrySet())
                               {
                                   if (value != null && value.equals(entry.getValue()))
                                   {
                                       problems.add(new ClassesMappedToSameRemoteAliasProblem(key.getQualifiedName(),
                                               entry.getKey().getQualifiedName(), value));
                                       break;
                                   }
                               }
                            }
                            return super.put(key, value);
                        }
                    };
                   
                for (ICompilationUnit cu : emittedCompilationUnits)
                {
                    Collection<IDefinition> visibleDefs = cu.getFileScopeRequest().get().getExternallyVisibleDefinitions();
                    for (IDefinition visibleDef : visibleDefs)
                    {
                        if (visibleDef instanceof ClassDefinition)
                        {
                            ClassDefinition visibleClass = (ClassDefinition) visibleDef;
                            IEffectDefinition[] effectDefinitions = visibleClass.getEffectDefinitions(flexProject.getWorkspace());
                            for (IEffectDefinition effectDefinition : effectDefinitions)
                            {
                                // TODO create compiler problem if effect already has a trigger.
                                effectNameToTriggerMap.put(effectDefinition.getBaseName(), effectDefinition.getEvent());
                            }
                           
                            IStyleDefinition[] styleDefinitions = visibleClass.getStyleDefinitions(flexProject.getWorkspace());
                            for (IStyleDefinition styleDefinition : styleDefinitions)
                            {
                                boolean isInheriting = styleDefinition.isInheriting();
                                // TODO create compiler problem if style definitions conflict
                                inheritingStyleMap.put(styleDefinition.getBaseName(), isInheriting);
                            }
                           
                            String remoteClassAlias = visibleClass.getRemoteClassAlias();
                            if (remoteClassAlias != null)
                                remoteClassAliasMap.put(visibleClass, remoteClassAlias);
                        }
                    }
                }
               
                // register effects
                if (!effectNameToTriggerMap.isEmpty())
                {
                    IDefinition mxInternalDef = mxInternalReference.resolve(flexProject);
                    if (!(mxInternalDef instanceof NamespaceDefinition))
                        return false;
                   
                   
                    IResolvedQualifiersReference registerEffectTriggerRef =
                        ReferenceFactory.resolvedQualifierQualifiedReference(flexProject.getWorkspace(), (INamespaceDefinition)mxInternalDef,
                                "registerEffectTrigger");
                    Name registerEffectTriggerName = registerEffectTriggerRef.getMName();
                   
                    initMethod.addInstruction(ABCConstants.OP_getlex, effectManagerReference.getMName());
                   
                    for (Map.Entry<String, String> effectEntry : effectNameToTriggerMap.entrySet())
                    {
                        initMethod.addInstruction(ABCConstants.OP_dup)// copy the effectManager class closure
                        initMethod.addInstruction(ABCConstants.OP_pushstring, effectEntry.getKey());
                        initMethod.addInstruction(ABCConstants.OP_pushstring, effectEntry.getValue());
                        initMethod.addInstruction(ABCConstants.OP_callpropvoid, new Object[] { registerEffectTriggerName, 2 });
                    }
                    initMethod.addInstruction(ABCConstants.OP_pop);
                   
                }
               
                // Initialize AccessibilityClasses. Below is example code. Each
                // accessibility class found by the compiler will have its
                // enableAccessibility() method called.
                //
                // if (Capabilities.hasAccessibility) {
                //    spark.accessibility.TextBaseAccImpl.enableAccessibility();
                //    mx.accessibility.UIComponentAccProps.enableAccessibility();
                //    spark.accessibility.ButtonBaseAccImpl.enableAccessibility();
                // }
                if (targetSettings.isAccessible())
                {
                    Name capabilitiesSlotName = capabilitiesReference.getMName();
                    initMethod.addInstruction(ABCConstants.OP_findpropstrict, capabilitiesSlotName);
                    initMethod.addInstruction(ABCConstants.OP_getproperty, capabilitiesSlotName);
                    initMethod.addInstruction(ABCConstants.OP_getproperty, new Name("hasAccessibility"));
                    Label accessibilityEnd = new Label();
                    initMethod.addInstruction(ABCConstants.OP_iffalse, accessibilityEnd);
   
                    IResolvedQualifiersReference enableAccessibilityReference = ReferenceFactory.packageQualifiedReference(flexProject.getWorkspace(),
                            "enableAccessibility");           
                    Name enableAccessibilityName = enableAccessibilityReference.getMName();
                    Object[] enableAccessibilityCallPropOperands = new Object[] { enableAccessibilityName, 0 };
                    for (String accessibilityClassName : accessibleClassNames)
                    {
                        IResolvedQualifiersReference ref = ReferenceFactory.packageQualifiedReference(flexProject.getWorkspace(),
                                accessibilityClassName);
                        Name accName = ref.getMName();
                        initMethod.addInstruction(ABCConstants.OP_getlex, accName);
                        initMethod.addInstruction(ABCConstants.OP_callproperty, enableAccessibilityCallPropOperands);
                        initMethod.addInstruction(ABCConstants.OP_pop);
                    }
   
                    initMethod.labelNext(accessibilityEnd);
                }
               
                // register class aliases
                if (!remoteClassAliasMap.isEmpty())
                {
                    Name getClassByAliasName = getClassByAliasReference.getMName();
                    Name registerClassAliasName = registerClassAliasReference.getMName();
                    Object[] getClassByAliasCallPropOperands = new Object[] { getClassByAliasName, 1 };
                    Object [] registerClassAliasCallPropOperands = new Object[] { registerClassAliasName, 2 };
                    for (Map.Entry<ClassDefinition, String> classAliasEntry : remoteClassAliasMap.entrySet())
                    {
                        Label tryLabel = new Label();
                        initMethod.labelNext(tryLabel);
                        initMethod.addInstruction(ABCConstants.OP_finddef, getClassByAliasName);
                        initMethod.addInstruction(ABCConstants.OP_pushstring, classAliasEntry.getValue());
                        initMethod.addInstruction(ABCConstants.OP_callproperty, getClassByAliasCallPropOperands);
                        Name classMName = classAliasEntry.getKey().getMName(flexProject);
                        initMethod.addInstruction(ABCConstants.OP_getlex, classMName);
                        Label endTryLabel = new Label();
                        initMethod.addInstruction(ABCConstants.OP_ifeq, endTryLabel);
                        initMethod.addInstruction(ABCConstants.OP_finddef, registerClassAliasName);
                        initMethod.addInstruction(ABCConstants.OP_pushstring, classAliasEntry.getValue());
                        initMethod.addInstruction(ABCConstants.OP_getlex, classMName);
                        initMethod.addInstruction(ABCConstants.OP_callpropvoid, registerClassAliasCallPropOperands);
                        initMethod.labelNext(endTryLabel);
                        Label afterCatch = new Label();
                        initMethod.addInstruction(ABCConstants.OP_jump, afterCatch);
                        Label catchLabel = new Label();
                        initMethod.labelNext(catchLabel);
                        initMethod.addInstruction(ABCConstants.OP_pop);
                        initMethod.addInstruction(ABCConstants.OP_finddef, registerClassAliasName);
                        initMethod.addInstruction(ABCConstants.OP_pushstring, classAliasEntry.getValue());
                        initMethod.addInstruction(ABCConstants.OP_getlex, classMName);
                        initMethod.addInstruction(ABCConstants.OP_callpropvoid, registerClassAliasCallPropOperands);
                        initMethod.labelNext(afterCatch);
                        initMethodBodyVisitor.visitException(tryLabel, endTryLabel, catchLabel,
                                new Name(IASLanguageConstants.Error), null);
                    }
                }
               
                // register inheriting styles
                if (!inheritingStyleMap.isEmpty())
                {
                    initMethod.addInstruction(ABCConstants.OP_getlex, stylesClassName);
                    int count = 0;
                    for (Map.Entry<String, Boolean> styleEntry : inheritingStyleMap.entrySet())
                    {
                        if (styleEntry.getValue().booleanValue())
                        {
                            ++count;
                            initMethod.addInstruction(ABCConstants.OP_pushstring, styleEntry.getKey());
                        }
                    }
                   
                    initMethod.addInstruction(ABCConstants.OP_newarray, count);
                    initMethod.addInstruction(ABCConstants.OP_setproperty, new Name("inheritingStyles"));
   
                }
   
                initMethod.addInstruction(ABCConstants.OP_returnvoid);
               
                initMethodBodyVisitor.visitInstructionList(initMethod);
                initMethodBodyVisitor.visitEnd();
                initMethodVisitor.visitEnd();
               
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            // {
            //    FlexVersion.compatibilityVersionString = "4.5.0";
            //    super();
            // }
            final String compatibilityVersion = flexProject.getCompatibilityVersionString();
            final InstructionList classITraitsInit = new InstructionList();
            if (compatibilityVersion != null)
            {
                Name flexVersionSlotName = flexVersionReference.getMName();
                classITraitsInit.addInstruction(ABCConstants.OP_getlex, flexVersionSlotName);
                classITraitsInit.addInstruction(ABCConstants.OP_pushstring, compatibilityVersion);
                classITraitsInit.addInstruction(ABCConstants.OP_setproperty, new Name("compatibilityVersionString"));
            }
            classITraitsInit.addInstruction(ABCConstants.OP_getlocal0);
            classITraitsInit.addInstruction(ABCConstants.OP_constructsuper, 0);
            classITraitsInit.addInstruction(ABCConstants.OP_returnvoid);
            ClassGeneratorHelper classGen = new ClassGeneratorHelper(flexProject, emitter, generatedSystemManagerName, systemManagerClass, implementedInterfaces, classITraitsInit);

            final FlexRSLInfo rslInfo = getRSLInfo();
           
            final FlexSplashScreenImage splashScreenImage = getSplashScreenImage();
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         function_scope.methodBodyVisitor = methodBodyVisitor;
         function_scope.traitsVisitor = methodBodyVisitor.visitTraits();
         function_scope.setMethodInfo(mi);

         InstructionList functionBody = null;
         // for a list of nodes, generate all their instructions and add the results together.
         // typically we are doing this to concatenate strings
         for (IExpressionNode expressionNode : nodes)
         {
             InstructionList instructionsForExpression = generateInstructions(expressionNode, CmcEmitter.__expression_NT, function_scope, null);
             if (functionBody == null)
             {
                 // First one in the list makes a new IL and puts
                 // instructions into it
                 functionBody = instructionsForExpression;
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    }

    @Override
    InstructionList addExitPath(InstructionList exitBranch)
    {
        InstructionList with_fixup = new InstructionList();
        with_fixup.addInstruction(OP_popscope);
        with_fixup.addInstruction(getWithStorage().kill());

        with_fixup.addAll(exitBranch);
        return with_fixup;
    }
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         *  Generate the loop prologue code.
         *  @return loop prologue code.
         */
        InstructionList generatePrologue(IASNode iNode, InstructionList base)
        {
            InstructionList result = createInstructionList(iNode);

            //  Set up the object and index registers.
            result.addInstruction(OP_pushbyte, 0);
            result.addInstruction(hasnext.index_temp.setlocal());

            result.addAll(base);
            result.addInstruction(hasnext.stem_temp.setlocal());

            //  Go to the loop test.
            result.addInstruction(OP_jump, test);

            //  Top of loop processing.
            result.addInstruction(OP_label);
            result.labelCurrent(loop);
            return result;
        }
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