Examples with TGetter org.eclipse.n4js.ts.types.TGetter used on opensource projects

Example 6 with TGetter

use of org.eclipse.n4js.ts.types.TGetter 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();
}

Example 7 with TGetter

use of org.eclipse.n4js.ts.types.TGetter in project n4js by eclipse.

the class ComposedMemberScope method createErrorPlaceholder.

/**
 * To avoid having to do all computation over and over in case no valid composed member can be built, we also create
 * a member in the error case as a placeholder.
 * <p>
 * Note: we need to be able to store error place holders and/or successfully composed members for read- and
 * write-access independently (i.e. we might have, for example, a valid composed member for read access but an error
 * placeholder for write access); therefore we have to use getters/setters for error place holders.
 */
private TMember createErrorPlaceholder(String memberName) {
    if (writeAccess) {
        final TSetter s = TypeUtils.createTSetter(memberName, null, TypeRefsFactory.eINSTANCE.createUnknownTypeRef());
        s.setComposed(true);
        return s;
    } else {
        final TGetter g = TypesFactory.eINSTANCE.createTGetter();
        g.setComposed(true);
        g.setName(memberName);
        g.setDeclaredTypeRef(TypeRefsFactory.eINSTANCE.createUnknownTypeRef());
        return g;
    }
}

Example 8 with TGetter

use of org.eclipse.n4js.ts.types.TGetter in project n4js by eclipse.

the class GetterFactory method create.

@Override
public TGetter create(String name) {
    TGetter getter = TypesFactory.eINSTANCE.createTGetter();
    getter.setComposed(true);
    TypeRef typeRef = getReturnTypeRefComposition();
    TypeUtils.setMemberTypeRef(getter, typeRef);
    getter.setName(name);
    getter.setDeclaredMemberAccessModifier(getAccessability());
    return getter;
}

Example 9 with TGetter

use of org.eclipse.n4js.ts.types.TGetter in project n4js by eclipse.

the class TypingStrategyFilter method apply.

@Override
public boolean apply(IEObjectDescription description) {
    if (typingStrategy == TypingStrategy.DEFAULT || typingStrategy == TypingStrategy.NOMINAL) {
        return true;
    }
    EObject proxyOrInstance = description.getEObjectOrProxy();
    if (proxyOrInstance == null || proxyOrInstance.eIsProxy()) {
        return true;
    }
    if (!(proxyOrInstance instanceof TMember)) {
        return true;
    }
    TMember member = (TMember) proxyOrInstance;
    if (member.isStatic() || member.getMemberAccessModifier() != MemberAccessModifier.PUBLIC) {
        return false;
    }
    if (member instanceof TMethod) {
        switch(typingStrategy) {
            case NOMINAL:
            case DEFAULT:
                return true;
            case STRUCTURAL_FIELDS:
            case STRUCTURAL_READ_ONLY_FIELDS:
            case STRUCTURAL_WRITE_ONLY_FIELDS:
            case STRUCTURAL_FIELD_INITIALIZER:
                return false;
            case STRUCTURAL:
                // including constructors
                return true;
        }
    }
    if (member instanceof TGetter) {
        switch(typingStrategy) {
            case NOMINAL:
            case DEFAULT:
            case STRUCTURAL:
            case STRUCTURAL_FIELDS:
            case STRUCTURAL_READ_ONLY_FIELDS:
                return true;
            case STRUCTURAL_WRITE_ONLY_FIELDS:
                return false;
            case STRUCTURAL_FIELD_INITIALIZER:
                ContainerType<?> type = member.getContainingType();
                NameAndAccess naa = new NameAndAccess(member.getName(), true, false);
                Map<NameAndAccess, ? extends TMember> members = type.getOwnedMembersByNameAndAccess();
                boolean hasSetter = members.containsKey(naa);
                return hasSetter;
        }
    }
    if (member instanceof TSetter) {
        switch(typingStrategy) {
            case NOMINAL:
            case DEFAULT:
            case STRUCTURAL:
            case STRUCTURAL_FIELDS:
            case STRUCTURAL_WRITE_ONLY_FIELDS:
                return true;
            case STRUCTURAL_READ_ONLY_FIELDS:
            case STRUCTURAL_FIELD_INITIALIZER:
                return false;
        }
    }
    if (member instanceof TField) {
        TField field = (TField) member;
        switch(typingStrategy) {
            case NOMINAL:
            case DEFAULT:
            case STRUCTURAL:
            case STRUCTURAL_FIELDS:
                return true;
            case STRUCTURAL_READ_ONLY_FIELDS:
                return !isWriteAccess;
            case STRUCTURAL_WRITE_ONLY_FIELDS:
                return isWriteAccess;
            case STRUCTURAL_FIELD_INITIALIZER:
                boolean isAccessable = !isWriteAccess && (!field.isFinal() || !field.isHasExpression());
                return isAccessable;
        }
    }
    return true;
}

Example 10 with TGetter

use of org.eclipse.n4js.ts.types.TGetter in project n4js by eclipse.

the class TypeUtils method setMemberTypeRef.

/**
 * Convenience method setting the type of the given member. Sets the return type in case of getters and methods and
 * the type of the single fpar in case of setters. If the setter does not have an fpar yet, it will be created.
 */
public static void setMemberTypeRef(TMember m, TypeRef typeRef) {
    typeRef = TypeUtils.copyIfContained(typeRef);
    if (m instanceof TField)
        ((TField) m).setTypeRef(typeRef);
    else if (m instanceof TGetter)
        ((TGetter) m).setDeclaredTypeRef(typeRef);
    else if (m instanceof TSetter) {
        final TSetter s = (TSetter) m;
        if (s.getFpar() == null)
            s.setFpar(TypesFactory.eINSTANCE.createTFormalParameter());
        s.getFpar().setTypeRef(typeRef);
    } else if (m instanceof TMethod)
        ((TMethod) m).setReturnTypeRef(typeRef);
    else if (m != null)
        throw new IllegalArgumentException("unknown sub-class of TMember: " + m.getClass().getName());
}