Examples with EcoreUtil2 org.eclipse.xtext.EcoreUtil2 used on opensource projects

Example 1 with EcoreUtil2

use of org.eclipse.xtext.EcoreUtil2 in project n4js by eclipse.

the class ScriptApiTracker method computeMissingApiFields.

/**
 * Computes the list of virtual fields.
 *
 * @return List of {@link VirtualApiTField}
 */
public List<TField> computeMissingApiFields(N4InterfaceDeclaration declaration) {
    Optional<ProjectComparisonAdapter> optAdapt = firstProjectComparisonAdapter(declaration.eResource());
    if (optAdapt.isPresent()) {
        ProjectComparisonEntry compareEntry = optAdapt.get().getEntryFor(EcoreUtil2.getContainerOfType(declaration.getDefinedType(), TModule.class));
        ProjectComparisonEntry typeCompare = compareEntry.getChildForElementImpl(declaration.getDefinedTypeAsInterface());
        if (typeCompare != null) {
            return typeCompare.allChildren().filter(pce -> pce.getElementAPI() instanceof TField).filter(pce -> pce.getElementImpl()[0] == null).map(pce -> {
                TField apiMethod = (TField) pce.getElementAPI();
                // do not touch AST on copy!:
                TField copy = TypeUtils.copyPartial(apiMethod, TypesPackage.Literals.SYNTAX_RELATED_TELEMENT__AST_ELEMENT);
                TField ret = new VirtualApiTField(apiMethod.getName(), copy);
                return ret;
            }).collect(Collectors.toList());
        }
    }
    return emptyList();
}

Example 2 with EcoreUtil2

use of org.eclipse.xtext.EcoreUtil2 in project n4js by eclipse.

the class ScriptApiTracker method computeMissingApiMethods.

/**
 * @param type
 *            type to search for APIs.
 * @param context
 *            context holding the comparison-adapter
 * @return List of {@link VirtualApiTMethod}
 */
public List<TMethod> computeMissingApiMethods(TClass type, EObject context) {
    Optional<ProjectComparisonAdapter> optAdapt = firstProjectComparisonAdapter(context.eResource());
    if (optAdapt.isPresent()) {
        ProjectComparisonEntry compareEntry = optAdapt.get().getEntryFor(EcoreUtil2.getContainerOfType(type, TModule.class));
        ProjectComparisonEntry typeCompare = compareEntry.getChildForElementImpl(type);
        if (typeCompare != null) {
            return typeCompare.allChildren().filter(pce -> pce.getElementAPI() instanceof TMethod).filter(pce -> pce.getElementImpl()[0] == null).map(pce -> {
                TMethod apiMethod = (TMethod) pce.getElementAPI();
                TMethod copy = TypeUtils.copyPartial(apiMethod, TypesPackage.Literals.SYNTAX_RELATED_TELEMENT__AST_ELEMENT);
                TMethod ret = new VirtualApiTMethod(apiMethod.getName(), copy);
                return ret;
            }).collect(Collectors.toList());
        }
    }
    return emptyList();
}

Example 3 with EcoreUtil2

use of org.eclipse.xtext.EcoreUtil2 in project n4js by eclipse.

the class ScriptApiTracker method computeMissingApiMethods.

/**
 * Looking for at.ProvidesDefaultImplementation on Methods. Normal method declarations are not taken into account,
 * since they would not be executed on the interface level.
 *
 * Beware: also the inheritance in the original API will be taken into account since compiled client code will link
 * against that.
 *
 * @param type
 *            type to search for apis.
 * @return List of {@link VirtualApiTMethod}
 */
public List<TMethod> computeMissingApiMethods(TInterface type, EObject context) {
    Optional<ProjectComparisonAdapter> optAdapt = firstProjectComparisonAdapter(context.eResource());
    if (optAdapt.isPresent()) {
        ProjectComparisonAdapter projectComparisonAdapter = optAdapt.get();
        ProjectComparisonEntry compareEntry = projectComparisonAdapter.getEntryFor(EcoreUtil2.getContainerOfType(type, TModule.class));
        ProjectComparisonEntry typeCompare = compareEntry.getChildForElementImpl(type);
        if (typeCompare == null) {
            // are we in a completely missing API implementation (super-interfaces not implemented ?)
            typeCompare = compareEntry.getChildForElementAPI(type);
        }
        if (typeCompare == null) {
            if (logger.isDebugEnabled()) {
                logger.debug(" want to throw new IllegalstateException() --> comparison for implementation not found type=" + type.getTypeAsString() + " in Implementation " + compareEntry.getElementImpl()[0]);
            }
            return emptyList();
        }
        LinkedHashMultimap<TMethod, TInterface> lhmmMehodInterface = LinkedHashMultimap.<TMethod, TInterface>create();
        Predicate<ProjectComparisonEntry> filter = (pce -> pce.getElementAPI() instanceof TMethod);
        filter = filter.and(pce -> pce.getElementImpl()[0] == null).and(pce -> PROVIDES_DEFAULT_IMPLEMENTATION.hasAnnotation((TMethod) pce.getElementAPI()));
        Function<TInterface, Consumer<? super ProjectComparisonEntry>> actionProvider = pivot -> pce -> {
            TMethod method = ((TMethod) pce.getElementAPI());
            lhmmMehodInterface.put(method, pivot);
        };
        if (!checkInterfaceImplementsInterface(type, typeCompare.getElementAPI())) {
            return emptyList();
        }
        // Call the supertype iterations scaffolding:
        interfaceApiSupertypeWalker(filter, actionProvider, projectComparisonAdapter, (TInterface) typeCompare.getElementAPI(), TInterface.class);
        // out in the caller when processing our results...
        return lhmmMehodInterface.keySet().stream().map(m -> new VirtualApiTMethod(m.getName(), TypeUtils.copyPartial(m, TypesPackage.Literals.SYNTAX_RELATED_TELEMENT__AST_ELEMENT))).collect(Collectors.toList());
    }
    return emptyList();
}

Example 4 with EcoreUtil2

use of org.eclipse.xtext.EcoreUtil2 in project n4js by eclipse.

the class ScriptApiTracker method computeMissingApiFields.

/**
 * Computes the list of virtual AccessorTuples for missing fields.
 *
 * @return List of {@link VirtualApiTField}
 */
private List<AccessorTuple> computeMissingApiFields(TClass declaration) {
    Optional<ProjectComparisonAdapter> optAdapt = firstProjectComparisonAdapter(declaration.eResource());
    if (optAdapt.isPresent()) {
        ProjectComparisonEntry compareEntry = optAdapt.get().getEntryFor(EcoreUtil2.getContainerOfType(declaration, TModule.class));
        ProjectComparisonEntry typeCompare = compareEntry.getChildForElementImpl(declaration);
        if (typeCompare != null) {
            return typeCompare.allChildren().filter(pce -> pce.getElementAPI() instanceof TField).filter(// only go for empty impl.
            pce -> pce.getElementImpl()[0] == null).map(pce -> {
                TField apiField = (TField) pce.getElementAPI();
                VirtualApiMissingFieldAccessorTuple ret = createVirtFieldAccessorTuple(apiField);
                return ret;
            }).collect(Collectors.toList());
        }
    }
    return emptyList();
}

Example 5 with EcoreUtil2

use of org.eclipse.xtext.EcoreUtil2 in project n4js by eclipse.

the class ScriptApiTracker method _computeMissingApiGetterSetter.

/**
 * Internal algorithm.
 */
private List<AccessorTuple> _computeMissingApiGetterSetter(TN4Classifier declaration, List<AccessorTuple> concreteAccessorTuples, Predicate<ProjectComparisonEntry> filterPredicate, boolean recursive) {
    Optional<ProjectComparisonAdapter> optAdapt = firstProjectComparisonAdapter(declaration.eResource());
    if (optAdapt.isPresent()) {
        ProjectComparisonAdapter projectComparisonAdapter = optAdapt.get();
        ProjectComparisonEntry compareEntry = projectComparisonAdapter.getEntryFor(EcoreUtil2.getContainerOfType(declaration, TModule.class));
        ProjectComparisonEntry typeCompare = compareEntry.getChildForElementImpl(declaration);
        if (typeCompare == null) {
            return Collections.emptyList();
        }
        Predicate<ProjectComparisonEntry> filter = (pce -> (pce.getElementAPI() instanceof TGetter) || (pce.getElementAPI() instanceof TSetter));
        filter = filter.and(pce -> pce.getElementImpl()[0] == null).and(filterPredicate);
        ArrayList<ProjectComparisonEntry> collectedPCEofGetterOrSetter = new ArrayList<>();
        Function<TN4Classifier, Consumer<? super ProjectComparisonEntry>> actionProvider = pivot -> pce -> {
            // Get or Set ??
            collectedPCEofGetterOrSetter.add(pce);
        };
        // recursive Extension will generate a stream of compareEntries.
        if (recursive)
            interfaceApiSupertypeWalker(filter, actionProvider, projectComparisonAdapter, (TN4Classifier) typeCompare.getElementAPI(), TN4Classifier.class);
        // ----
        /*-
				Cases of the Implementation: A getter or setter can
				- be given as AST (x)
				- be missing (m)
				- were not required by API (/)
				So we have 3*3=9 cases:
				get set
				(x) (x) --> all fine, pair will be transpiled
				(x) (m) --> code for getter will be transpiled, need to inject virtual setter code into existing tuple.
				(x) (/) --> all fine, getter will be transpiled
				(m) (x) --> code for setter will be transpiled, need to inject virtual getter code into existing tuple.
				(m) (m) --> need to create virtual accessor tuple (similar to missing field) with setter & getter
				(m) (/) --> need to create virtual accessor tuple with getter only
				(/) (x) --> all fine
				(/) (m) --> need to create virtual accessor tuple with setter only
				(/) (/) --> all fine nothing to be done.
			 */
        List<ProjectComparisonEntry> getSetList;
        if (recursive)
            getSetList = collectedPCEofGetterOrSetter;
        else
            getSetList = typeCompare.allChildren().filter(pce -> (pce.getElementAPI() instanceof TGetter) || (pce.getElementAPI() instanceof TSetter)).filter(filterPredicate).collect(Collectors.toList());
        HashMap<Pair<String, Boolean>, GetSetGroup> hmName2getset = new HashMap<>();
        for (ProjectComparisonEntry pce : getSetList) {
            TMember apiAsMember = ((TMember) pce.getElementAPI());
            String name = apiAsMember.getName();
            boolean staticCase = apiAsMember.isStatic();
            Pair<String, Boolean> key = Pair.of(name, staticCase);
            GetSetGroup group = hmName2getset.get(key);
            if (group == null) {
                group = new GetSetGroup(name, staticCase);
                hmName2getset.put(key, group);
            }
            if (pce.getElementAPI() instanceof TGetter) {
                // case getter:
                TGetter apiGetter = (TGetter) pce.getElementAPI();
                if (pce.getElementImpl(0) != null) {
                    // case (x) for getter-
                    group.getterIsInAST = true;
                } else {
                    // case (m) for getter-
                    group.getterIsInAST = false;
                    group.getter = new VirtualApiTGetter(name, apiGetter);
                }
            } else if (pce.getElementAPI() instanceof TSetter) {
                // case setter:
                TSetter apiSetter = (TSetter) pce.getElementAPI();
                if (pce.getElementImpl(0) != null) {
                    // case (x) for setter -
                    group.setterIsInAST = true;
                } else {
                    // case (m) for setter:
                    group.setterIsInAST = false;
                    group.setter = new VirtualApiTSetter(name, apiSetter);
                }
            }
        }
        // go over the list of known AccessorTupels and enhance them by adding virtual things.
        for (AccessorTuple conAccTupel : concreteAccessorTuples) {
            GetSetGroup getset = hmName2getset.remove(Pair.of(conAccTupel.getName(), conAccTupel.isStatic()));
            if (getset != null) {
                // some missings found:
                if (getset.hasGetter() && !getset.getterIsInAST && // could be mixed in by interface-default-impl different
                conAccTupel.getGetter() == null) // to the intended API-path c.f. GHOLD-212
                {
                    conAccTupel.setGetter(getset.getter);
                }
                if (getset.hasSetter() && !getset.setterIsInAST && // could be mixed in by interface-default-impl different
                conAccTupel.getSetter() == null) // to the intended API-path c.f. GHOLD-212
                {
                    conAccTupel.setSetter(getset.setter);
                }
            }
        }
        // remaining entries in hmName2getset need to translated into VirtualApiAccessors.
        List<AccessorTuple> ret = new ArrayList<>();
        for (GetSetGroup getset : hmName2getset.values()) {
            VirtualApiAccessorTuple vAccessTupel = new VirtualApiAccessorTuple(getset.name, getset.staticCases);
            if (getset.getter != null)
                vAccessTupel.setGetter(getset.getter);
            if (getset.setter != null)
                vAccessTupel.setSetter(getset.setter);
            ret.add(vAccessTupel);
        }
        return ret;
    }
    return emptyList();
}