Examples with PRIVATE javax.lang.model.element.Modifier.PRIVATE used on opensource projects

Example 1 with PRIVATE

use of javax.lang.model.element.Modifier.PRIVATE in project graal by oracle.

the class ExportsGenerator method initializeEagerCaches.

private static Map<CacheKey, List<CacheExpression>> initializeEagerCaches(Map<String, ExportMessageData> messages) {
    final ExportMessageData acceptsMessage = messages.get(ACCEPTS);
    final Map<CacheKey, List<CacheExpression>> eagerCaches = new LinkedHashMap<>();
    if (acceptsMessage != null && acceptsMessage.getSpecializedNode() != null) {
        int specializationCount = 0;
        for (SpecializationData s : acceptsMessage.getSpecializedNode().getSpecializations()) {
            if (!s.isReachable() || !s.isSpecialized()) {
                continue;
            }
            specializationCount++;
            for (CacheExpression cache : s.getCaches()) {
                if (isEagerInitialize(acceptsMessage, cache)) {
                    eagerCaches.computeIfAbsent(new CacheKey(cache), (b) -> new ArrayList<>()).add(cache);
                }
            }
        }
        if (specializationCount > 1) {
            Iterator<List<CacheExpression>> iterator = eagerCaches.values().iterator();
            while (iterator.hasNext()) {
                List<CacheExpression> caches = iterator.next();
                if (caches.size() != specializationCount) {
                    // if a cache is not contained on all specializations
                    // do not initialize it eagerly. Probably a pretty rare case
                    // for accepts exports.
                    iterator.remove();
                }
            }
        }
    }
    Set<String> eagerSharedGroups = new HashSet<>();
    for (List<CacheExpression> caches : eagerCaches.values()) {
        for (CacheExpression cache : caches) {
            if (cache.isMergedLibrary()) {
                // merged libraries are handled elsewhere
                continue;
            }
            cache.setEagerInitialize(true);
            if (cache.getSharedGroup() != null) {
                eagerSharedGroups.add(cache.getSharedGroup());
            }
        }
    }
    if (eagerSharedGroups.size() > 0) {
        for (ExportMessageData message : messages.values()) {
            if (message.getSpecializedNode() != null) {
                for (SpecializationData specialization : message.getSpecializedNode().getSpecializations()) {
                    if (!specialization.isReachable()) {
                        continue;
                    }
                    for (CacheExpression cache : specialization.getCaches()) {
                        if (cache.getSharedGroup() != null && eagerSharedGroups.contains(cache.getSharedGroup())) {
                            cache.setEagerInitialize(true);
                        }
                    }
                }
            }
        }
    }
    return eagerCaches;
}

Example 2 with PRIVATE

use of javax.lang.model.element.Modifier.PRIVATE in project graal by oracle.

the class FlatNodeGenFactory method generateAOT.

private void generateAOT(CodeTypeElement clazz) {
    TypeMirror aotProviderType = new GeneratedTypeMirror(ElementUtils.getPackageName(types.GenerateAOT_Provider), "GenerateAOT.Provider");
    clazz.getImplements().add(aotProviderType);
    CodeExecutableElement prepare = clazz.add(CodeExecutableElement.cloneNoAnnotations(ElementUtils.findMethod(types.GenerateAOT_Provider, "prepareForAOT")));
    prepare.renameArguments("language", "root");
    GeneratorUtils.addOverride(prepare);
    prepare.getModifiers().remove(ABSTRACT);
    CodeTreeBuilder builder = prepare.createBuilder();
    List<SpecializationData> filteredSpecializations = new ArrayList<>();
    for (NodeData currentNode : sharingNodes) {
        for (SpecializationData s : calculateReachableSpecializations(currentNode)) {
            if (s.getMethod() == null || !s.isPrepareForAOT()) {
                continue;
            }
            filteredSpecializations.add(s);
        }
    }
    FrameState frameState = FrameState.load(this, NodeExecutionMode.SLOW_PATH, prepare);
    frameState.setBoolean(AOT_STATE, true);
    Map<StateBitSet, List<SpecializationData>> stateGroup = new LinkedHashMap<>();
    Set<TypeGuard> implicitCasts = new LinkedHashSet<>();
    for (SpecializationData specialization : filteredSpecializations) {
        for (StateBitSet set : allMultiState.getSets()) {
            if (set.contains(AOT_PREPARED)) {
                // make sure we have an entry for a state bitset
                // without any specialization but only with the AOT bit set
                stateGroup.computeIfAbsent(set, (s) -> new ArrayList<>());
            }
            if (set.contains(specialization)) {
                stateGroup.computeIfAbsent(set, (s) -> new ArrayList<>()).add(specialization);
                break;
            }
        }
        int index = 0;
        for (Parameter p : specialization.getSignatureParameters()) {
            TypeMirror targetType = p.getType();
            Collection<TypeMirror> sourceTypes = node.getTypeSystem().lookupSourceTypes(targetType);
            if (sourceTypes.size() > 1) {
                implicitCasts.add(new TypeGuard(targetType, index));
            }
            index++;
        }
    }
    builder.startAssert();
    builder.string("!isAdoptable() || ");
    builder.string("(").cast(context.getType(ReentrantLock.class), CodeTreeBuilder.singleString("getLock()"));
    builder.string(").isHeldByCurrentThread()");
    builder.string(" : ").doubleQuote("During prepare AST lock must be held.");
    builder.end();
    builder.tree(multiState.createLoad(frameState, AOT_PREPARED));
    builder.tree(multiState.createLoad(frameState, filteredSpecializations.toArray()));
    for (StateBitSet set : multiState.getSets()) {
        if (set.contains(AOT_PREPARED)) {
            builder.startIf();
            builder.tree(set.createContains(frameState, AOT_PREPARED));
            builder.end().startBlock();
            builder.returnDefault();
            builder.end();
            break;
        }
    }
    List<Object> bulkStateSet = new ArrayList<>();
    Set<String> languagesChecked = new HashSet<>();
    for (SpecializationData specialization : filteredSpecializations) {
        // we need to copy otherwise local variables of caches may conflict.
        FrameState innerFrameState = frameState.copy();
        SpecializationGroup specializationGroup = SpecializationGroup.create(Arrays.asList(specialization));
        for (CacheExpression cache : specialization.getCaches()) {
            if (!cache.isAlwaysInitialized()) {
                continue;
            }
            setCacheInitialized(innerFrameState, specialization, cache, true);
        }
        List<IfTriple> tripples = new ArrayList<>();
        for (AssumptionExpression assumption : specialization.getAssumptionExpressions()) {
            tripples.addAll(createAssumptionSlowPathTriples(innerFrameState, specializationGroup, assumption));
        }
        /*
             * We don't need to materialize assumption conditions.
             */
        for (IfTriple triple : tripples) {
            triple.condition = null;
        }
        // compute guards that can be materialized
        List<GuardExpression> usedGuards = new ArrayList<>();
        for (GuardExpression guard : specialization.getGuards()) {
            if (guardNeedsStateBit(specialization, guard)) {
                bulkStateSet.add(guard);
            }
            if (specialization.isDynamicParameterBound(guard.getExpression(), true)) {
                if (!specialization.isOnlyLanguageReferencesBound(guard.getExpression())) {
                    /*
                         * Guards with only language references can be executed.
                         */
                    continue;
                }
            }
            usedGuards.add(guard);
        }
        for (CacheExpression cache : specialization.getCaches()) {
            if (!cache.isAlwaysInitialized()) {
                continue;
            }
            if (cache.isCachedLanguage()) {
                boolean needsLocal = false;
                for (GuardExpression guard : usedGuards) {
                    if (specialization.isExpressionBindsCache(guard.getExpression(), cache)) {
                        needsLocal = true;
                        break;
                    }
                }
                if (!needsLocal) {
                    for (CacheExpression otherCache : specialization.getCaches()) {
                        if (cache == otherCache) {
                            continue;
                        }
                        if (specialization.isExpressionBindsCache(otherCache.getDefaultExpression(), cache)) {
                            needsLocal = true;
                            break;
                        }
                    }
                }
                TypeMirror languageType = cache.getLanguageType();
                boolean needsCheck = false;
                if (!usedGuards.isEmpty()) {
                    needsCheck = languagesChecked.add(ElementUtils.getTypeId(languageType));
                }
                CodeTreeBuilder b = builder.create();
                if (needsCheck) {
                    b.startIf().string("language == null || language.getClass() != ").typeLiteral(languageType).end().startBlock();
                    b.startStatement().startStaticCall(types.CompilerDirectives, "transferToInterpreterAndInvalidate").end().end();
                    b.startThrow().startStaticCall(types.CompilerDirectives, "shouldNotReachHere");
                    b.startStaticCall(context.getType(String.class), "format");
                    b.doubleQuote(String.format("Specialization '%s' in node class '%s' is enabled for AOT generation. " + "The specialization declares a @%s for language class %s but was prepared for AOT with language class '%%s'. " + "Match the language used in the language reference or exclude the specialization from AOT generation with @%s.%s to resolve this problem.", getReadableSignature(specialization.getMethod()), getQualifiedName(specialization.getNode().getTemplateType()), getSimpleName(types.CachedLanguage), getQualifiedName(cache.getLanguageType()), getSimpleName(types.GenerateAOT), getSimpleName(types.GenerateAOT_Exclude)));
                    b.string("language != null ? language.getClass().getName() : \"null\"");
                    b.end();
                    // static call, throw,
                    b.end().end();
                    // if block
                    b.end();
                }
                if (needsLocal) {
                    b.startStatement();
                    b.type(languageType);
                    b.string(" ", createCacheLocalName(specialization, cache));
                    b.string(" = ").maybeCast(types.TruffleLanguage, cache.getLanguageType(), "language");
                    // statement
                    b.end();
                }
                tripples.add(new IfTriple(b.build(), null, null));
            }
        }
        for (GuardExpression guard : usedGuards) {
            Set<CacheExpression> caches = specialization.getBoundCaches(guard.getExpression(), true);
            tripples.addAll(initializeCaches(innerFrameState, NodeExecutionMode.SLOW_PATH, specializationGroup, caches, true, false));
            tripples.add(createMethodGuardCheck(innerFrameState, specialization, guard, NodeExecutionMode.SLOW_PATH));
        }
        BlockState state = IfTriple.materialize(builder, tripples, false);
        builder.tree(createSpecialize(builder, innerFrameState, specializationGroup, specialization, true));
        for (CacheExpression cache : specialization.getCaches()) {
            if (cache.isAlwaysInitialized()) {
                continue;
            }
            /*
                 * Libraries might not be AOT preparable. E.g. if a cached library was created from
                 * a final field of the current language. In such a case we should just not call
                 * prepareForAOT.
                 *
                 * Specializable nodes are always known to be preparable if they reach the code
                 * generator.
                 */
            boolean cachedLibrary = cache.isCachedLibrary();
            if (cachedLibrary) {
                builder.startIf().tree(createCacheReference(innerFrameState, specialization, cache)).instanceOf(aotProviderType).end().startBlock();
            }
            if (NodeCodeGenerator.isSpecializedNode(cache.getParameter().getType()) || cachedLibrary) {
                builder.startAssert().startStaticCall(types.NodeUtil, "assertRecursion");
                builder.tree(createCacheReference(innerFrameState, specialization, cache));
                /*
                     * We allow a single recursion level only for AOT preparation. It is important
                     * that we only assert recursion for @Cached fields as regular AST children can
                     * be recursive arbitrarily deep.
                     *
                     * We might need to increase this limit in the future if it triggers to eagerly.
                     */
                builder.string("1");
                builder.end().end();
                builder.startStatement();
                builder.string("(");
                builder.cast(aotProviderType);
                builder.tree(createCacheReference(innerFrameState, specialization, cache));
                builder.string(")");
                builder.string(".prepareForAOT(language, root)");
                builder.end();
            }
            if (cachedLibrary) {
                builder.end();
            }
        }
        if (usedGuards.isEmpty()) {
            bulkStateSet.add(specialization);
        } else {
            builder.tree(multiState.createSet(innerFrameState, new SpecializationData[] { specialization }, true, false));
        }
        builder.end(state.blockCount);
    }
    List<Object> allElements = new ArrayList<>();
    allElements.add(AOT_PREPARED);
    allElements.addAll(bulkStateSet);
    allElements.addAll(implicitCasts);
    builder.tree(multiState.createSet(frameState, allElements.toArray(), true, true));
    if (!needsAOTReset()) {
        return;
    }
    CodeExecutableElement reset = clazz.add(new CodeExecutableElement(modifiers(PRIVATE), context.getType(void.class), "resetAOT_"));
    frameState = FrameState.load(this, NodeExecutionMode.FAST_PATH, reset);
    reset.getModifiers().remove(ABSTRACT);
    builder = reset.createBuilder();
    for (StateBitSet set : multiState.all) {
        if (set.contains(AOT_PREPARED)) {
            builder.tree(set.createLoad(frameState));
            builder.startIf();
            builder.tree(set.createNotContains(frameState, AOT_PREPARED));
            builder.end().startBlock();
            builder.returnDefault();
            builder.end();
        }
        break;
    }
    for (SpecializationData specialization : filteredSpecializations) {
        List<CacheExpression> resetCaches = new ArrayList<>();
        for (CacheExpression cache : specialization.getCaches()) {
            if (cache.isAlwaysInitialized()) {
                continue;
            }
            if (types.Profile != null && ElementUtils.isAssignable(cache.getParameter().getType(), types.Profile)) {
                resetCaches.add(cache);
            }
        }
        if (resetCaches.size() > 0) {
            builder.tree(multiState.createLoadAll(frameState, specialization));
            builder.startIf().tree(multiState.createContainsAll(frameState, new Object[] { specialization })).end();
            builder.startBlock();
            for (CacheExpression cache : resetCaches) {
                builder.startStatement();
                builder.tree(createCacheReference(frameState, specialization, cache));
                builder.string(".reset()");
                builder.end();
            }
            builder.end();
        }
    }
    for (StateBitSet set : multiState.getSets()) {
        builder.tree(set.createSetZero(frameState, true));
    }
    if (requiresExclude()) {
        builder.tree(exclude.createSetZero(frameState, true));
    }
    /*
         * It is important that we reset the state first before we clear the caches for initialized
         * libraries. Otherwise we might observe an enabled specialization without initialized cache
         * on the fast-path.
         */
    for (SpecializationData specialization : filteredSpecializations) {
        boolean resetSpecializationClass = false;
        for (CacheExpression cache : specialization.getCaches()) {
            if (cache.isAlwaysInitialized()) {
                continue;
            }
            if (cache.isCachedLibraryManuallyDispatched()) {
                if (useSpecializationClass(specialization)) {
                    resetSpecializationClass = true;
                    break;
                }
                builder.startStatement();
                builder.tree(createCacheReference(frameState, specialization, cache)).string(" = null");
                builder.end();
            }
        }
        if (resetSpecializationClass || specialization.hasMultipleInstances()) {
            builder.startStatement();
            builder.string("this.", createSpecializationFieldName(specialization));
            builder.string(" = null");
            builder.end();
        }
    }
}

Example 3 with PRIVATE

use of javax.lang.model.element.Modifier.PRIVATE in project auto by google.

the class FactoryWriter method isTypeUseAnnotation.

private static boolean isTypeUseAnnotation(AnnotationMirror mirror) {
    Element annotationElement = mirror.getAnnotationType().asElement();
    // This is basically equivalent to:
    // Target target = annotationElement.getAnnotation(Target.class);
    // return target != null
    // && Arrays.asList(annotationElement.getAnnotation(Target.class)).contains(TYPE_USE);
    // but that might blow up if the annotation is being compiled at the same time and has an
    // undefined identifier in its @Target values. The rigmarole below avoids that problem.
    Optional<AnnotationMirror> maybeTargetMirror = Mirrors.getAnnotationMirror(annotationElement, Target.class);
    return maybeTargetMirror.map(targetMirror -> AnnotationValues.getEnums(AnnotationMirrors.getAnnotationValue(targetMirror, "value")).stream().map(VariableElement::getSimpleName).anyMatch(name -> name.contentEquals("TYPE_USE"))).orElse(false);
}