2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.parser.stmt.reactor;
10 import static com.google.common.base.Verify.verify;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.base.VerifyException;
14 import com.google.common.collect.ImmutableList;
15 import com.google.common.collect.Maps;
16 import com.google.common.collect.Streams;
17 import java.util.ArrayList;
18 import java.util.Collection;
19 import java.util.Collections;
20 import java.util.HashMap;
21 import java.util.Iterator;
22 import java.util.List;
24 import java.util.Objects;
25 import java.util.Optional;
26 import java.util.stream.Collectors;
27 import java.util.stream.Stream;
28 import org.eclipse.jdt.annotation.NonNull;
29 import org.eclipse.jdt.annotation.Nullable;
30 import org.opendaylight.yangtools.concepts.Immutable;
31 import org.opendaylight.yangtools.yang.common.QName;
32 import org.opendaylight.yangtools.yang.common.QNameModule;
33 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
34 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
35 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
36 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
37 import org.opendaylight.yangtools.yang.parser.spi.ParserNamespaces;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStatementState;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
41 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.OnDemandSchemaTreeStorageNode;
42 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
43 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementFactory;
44 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
45 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
46 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
47 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
48 import org.slf4j.Logger;
49 import org.slf4j.LoggerFactory;
52 * A statement which has been inferred to exist. Functionally it is equivalent to a SubstatementContext, but it is not
53 * backed by a declaration (and declared statements). It is backed by a prototype StatementContextBase and has only
54 * effective substatements, which are either transformed from that prototype or added by inference.
56 final class InferredStatementContext<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
57 extends StatementContextBase<A, D, E> implements OnDemandSchemaTreeStorageNode {
58 // An effective copy view, with enough information to decide what to do next
59 private static final class EffectiveCopy implements Immutable {
61 private final ReactorStmtCtx<?, ?, ?> orig;
62 // Effective view, if the statement is to be reused it equals to orig
63 private final ReactorStmtCtx<?, ?, ?> copy;
65 EffectiveCopy(final ReactorStmtCtx<?, ?, ?> orig, final ReactorStmtCtx<?, ?, ?> copy) {
66 this.orig = requireNonNull(orig);
67 this.copy = requireNonNull(copy);
74 ReactorStmtCtx<?, ?, ?> toChildContext(final @NonNull InferredStatementContext<?, ?, ?> parent) {
75 return isReused() ? orig.replicaAsChildOf(parent) : copy;
78 ReactorStmtCtx<?, ?, ?> toReusedChild(final @NonNull InferredStatementContext<?, ?, ?> parent) {
79 verify(isReused(), "Attempted to discard copy %s", copy);
80 return orig.replicaAsChildOf(parent);
84 private static final Logger LOG = LoggerFactory.getLogger(InferredStatementContext.class);
86 // Sentinel objects for 'substatements', String is a good enough type
87 private static final @NonNull String REUSED_SUBSTATEMENTS = "reused";
88 private static final @NonNull String SWEPT_SUBSTATEMENTS = "swept";
90 private final @NonNull StatementContextBase<A, D, E> prototype;
91 private final @NonNull StatementContextBase<?, ?, ?> parent;
92 private final @NonNull ReactorStmtCtx<A, D, E> originalCtx;
93 private final QNameModule targetModule;
94 private final A argument;
96 // Indicates whether or not this statement's substatement file was modified, i.e. it is not quite the same as the
98 private boolean modified;
101 * Effective substatements, lazily materialized. This field can have four states:
103 * <li>it can be {@code null}, in which case no materialization has taken place</li>
104 * <li>it can be a {@link HashMap}, in which case partial materialization has taken place</li>
105 * <li>it can be a {@link List}, in which case full materialization has taken place</li>
106 * <li>it can be {@link SWEPT_SUBSTATEMENTS}, in which case materialized state is no longer available</li>
109 private Object substatements;
111 private InferredStatementContext(final InferredStatementContext<A, D, E> original,
112 final StatementContextBase<?, ?, ?> parent) {
114 this.parent = requireNonNull(parent);
115 this.targetModule = original.targetModule;
116 this.prototype = original.prototype;
117 this.originalCtx = original.originalCtx;
118 this.argument = original.argument;
119 this.modified = original.modified;
120 // Substatements are initialized here
121 this.substatements = ImmutableList.of();
124 InferredStatementContext(final StatementContextBase<?, ?, ?> parent, final StatementContextBase<A, D, E> prototype,
125 final CopyType myCopyType, final CopyType childCopyType, final QNameModule targetModule) {
126 super(prototype, myCopyType, childCopyType);
127 this.parent = requireNonNull(parent);
128 this.prototype = requireNonNull(prototype);
129 this.argument = targetModule == null ? prototype.argument()
130 : prototype.definition().adaptArgumentValue(prototype, targetModule);
131 this.targetModule = targetModule;
133 final var origCtx = prototype.getOriginalCtx().orElse(prototype);
134 verify(origCtx instanceof ReactorStmtCtx, "Unexpected original %s", origCtx);
135 this.originalCtx = (ReactorStmtCtx<A, D, E>) origCtx;
137 // Mark prototype as blocking statement cleanup
142 public Collection<? extends StatementContextBase<?, ?, ?>> mutableDeclaredSubstatements() {
143 return ImmutableList.of();
147 public Collection<? extends Mutable<?, ?, ?>> mutableEffectiveSubstatements() {
148 return mutableEffectiveSubstatements(ensureEffectiveSubstatements());
152 public Iterable<? extends @NonNull StmtContext<?, ?, ?>> allSubstatements() {
153 // No need to concat with declared
154 return effectiveSubstatements();
158 public Stream<? extends @NonNull StmtContext<?, ?, ?>> allSubstatementsStream() {
159 // No need to concat with declared
160 return effectiveSubstatements().stream();
164 public StatementSourceReference sourceReference() {
165 return originalCtx.sourceReference();
169 public String rawArgument() {
170 return originalCtx.rawArgument();
174 public Optional<StmtContext<A, D, E>> getOriginalCtx() {
175 return Optional.of(originalCtx);
179 public Optional<StmtContext<A, D, E>> getPreviousCopyCtx() {
180 return Optional.of(prototype);
184 public D declared() {
186 * Share original instance of declared statement between all effective statements which have been copied or
187 * derived from this original declared statement.
189 return originalCtx.declared();
193 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef) {
194 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef);
198 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef,
199 final String statementArg) {
200 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef,
205 public void addEffectiveSubstatement(final Mutable<?, ?, ?> substatement) {
206 substatements = addEffectiveSubstatement(ensureEffectiveSubstatements(), substatement);
207 afterAddEffectiveSubstatement(substatement);
211 void addEffectiveSubstatementsImpl(final Collection<? extends Mutable<?, ?, ?>> statements) {
212 substatements = addEffectiveSubstatementsImpl(ensureEffectiveSubstatements(), statements);
216 InferredStatementContext<A, D, E> reparent(final StatementContextBase<?, ?, ?> newParent) {
217 return new InferredStatementContext<>(this, newParent);
221 E createEffective(final StatementFactory<A, D, E> factory) {
222 // If we have not materialized we do not have a difference in effective substatements, hence we can forward
223 // towards the source of the statement.
224 accessSubstatements();
225 return substatements == null ? tryToReusePrototype(factory) : createInferredEffective(factory);
228 private @NonNull E createInferredEffective(final @NonNull StatementFactory<A, D, E> factory) {
229 return createInferredEffective(factory, this, streamDeclared(), streamEffective());
233 E createInferredEffective(final StatementFactory<A, D, E> factory, final InferredStatementContext<A, D, E> ctx,
234 final Stream<? extends ReactorStmtCtx<?, ?, ?>> declared,
235 final Stream<? extends ReactorStmtCtx<?, ?, ?>> effective) {
236 return originalCtx.createInferredEffective(factory, ctx, declared, effective);
239 private @NonNull E tryToReusePrototype(final @NonNull StatementFactory<A, D, E> factory) {
240 final var origEffective = prototype.buildEffective();
241 final var origSubstatements = origEffective.effectiveSubstatements();
243 // First check if we can reuse the entire prototype
244 if (!factory.canReuseCurrent(this, prototype, origSubstatements)) {
245 return internAlongCopyAxis(factory, tryToReuseSubstatements(factory, origEffective));
248 // We can reuse this statement let's see if all statements agree...
249 // ... no substatements to deal with, we can freely reuse the original
250 if (origSubstatements.isEmpty()) {
251 LOG.debug("Reusing empty: {}", origEffective);
252 substatements = ImmutableList.of();
254 return origEffective;
257 // ... all are context independent, reuse the original
258 if (allSubstatementsContextIndependent()) {
259 LOG.debug("Reusing context-independent: {}", origEffective);
260 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
262 return origEffective;
265 // ... copy-sensitive check
266 final var declCopy = effectiveCopy(prototype.streamDeclared());
267 final var effCopy = effectiveCopy(prototype.streamEffective());
269 // ... are any copy-sensitive?
270 if (allReused(declCopy) && allReused(effCopy)) {
271 LOG.debug("Reusing after substatement check: {}", origEffective);
272 substatements = noRefs() ? REUSED_SUBSTATEMENTS
273 : reusePrototypeReplicas(Streams.concat(declCopy.stream(), effCopy.stream())
274 .map(copy -> copy.toReusedChild(this)));
276 return origEffective;
279 // *sigh*, ok, heavy lifting through a shallow copy
280 final var declared = adoptSubstatements(declCopy);
281 final var effective = adoptSubstatements(effCopy);
282 substatements = declared.isEmpty() ? effective
283 : Streams.concat(declared.stream(), effective.stream()).collect(ImmutableList.toImmutableList());
286 // Values are the effective copies, hence this efficiently deals with recursion.
287 return internAlongCopyAxis(factory,
288 originalCtx.createInferredEffective(factory, this, declared.stream(), effective.stream()));
291 private @NonNull E tryToReuseSubstatements(final @NonNull StatementFactory<A, D, E> factory,
292 final @NonNull E original) {
293 if (allSubstatementsContextIndependent()) {
294 LOG.debug("Reusing substatements of: {}", prototype);
295 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
297 return factory.copyEffective(this, original);
300 // Fall back to full instantiation, which populates our substatements. Then check if we should be reusing
301 // the substatement list, as this operation turned out to not affect them.
302 final E effective = createInferredEffective(factory);
303 // Since we have forced instantiation to deal with this case, we also need to reset the 'modified' flag
306 if (sameSubstatements(original.effectiveSubstatements(), effective)) {
307 LOG.debug("Reusing unchanged substatements of: {}", prototype);
308 return factory.copyEffective(this, original);
313 private @NonNull E internAlongCopyAxis(final StatementFactory<A, D, E> factory, final @NonNull E stmt) {
315 final EffectiveStatementState state = factory.extractEffectiveState(stmt);
317 return prototype.unmodifiedEffectiveSource().attachEffectiveCopy(state, stmt);
323 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas() {
324 return reusePrototypeReplicas(Streams.concat(prototype.streamDeclared(), prototype.streamEffective()));
327 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas(final Stream<ReactorStmtCtx<?, ?, ?>> stream) {
330 final var ret = stmt.replicaAsChildOf(this);
331 ret.buildEffective();
334 .collect(Collectors.toUnmodifiableList());
337 private static boolean sameSubstatements(final Collection<?> original, final EffectiveStatement<?, ?> effective) {
338 final var copied = effective.effectiveSubstatements();
339 if (copied != effective.effectiveSubstatements() || original.size() != copied.size()) {
340 // Do not bother if result is treating substatements as transient
344 final var cit = copied.iterator();
345 for (var origChild : original) {
346 verify(cit.hasNext());
347 // Identity comparison on purpose to side-step whatever equality there might be. We want to reuse instances
349 if (origChild != cit.next()) {
353 verify(!cit.hasNext());
357 private static boolean allReused(final List<EffectiveCopy> entries) {
358 return entries.stream().allMatch(EffectiveCopy::isReused);
362 ReactorStmtCtx<A, D, E> unmodifiedEffectiveSource() {
363 return modified ? this : prototype.unmodifiedEffectiveSource();
367 boolean hasEmptySubstatements() {
368 if (substatements == null) {
369 return prototype.hasEmptySubstatements();
371 return substatements instanceof HashMap ? false : ((List<?>) substatements).isEmpty();
375 boolean noSensitiveSubstatements() {
376 accessSubstatements();
377 if (substatements == null) {
378 // No difference, defer to prototype
379 return prototype.allSubstatementsContextIndependent();
381 if (substatements instanceof List) {
382 // Fully materialized, walk all statements
383 return noSensitiveSubstatements(castEffective(substatements));
386 // Partially-materialized. This case has three distinct outcomes:
387 // - prototype does not have a sensitive statement (1)
388 // - protype has a sensitive substatement, and
389 // - we have not marked is as unsupported (2)
390 // - we have marked it as unsupported (3)
392 // Determining the outcome between (2) and (3) is a bother, this check errs on the side of false negative side
393 // and treats (3) as (2) -- i.e. even if we marked a sensitive statement as unsupported, we still consider it
394 // as affecting the result.
395 return prototype.allSubstatementsContextIndependent()
396 && noSensitiveSubstatements(castMaterialized(substatements).values());
400 <X, Z extends EffectiveStatement<X, ?>> @NonNull Optional<X> findSubstatementArgumentImpl(
401 final @NonNull Class<Z> type) {
402 if (substatements instanceof List) {
403 return super.findSubstatementArgumentImpl(type);
406 final Optional<X> templateArg = prototype.findSubstatementArgument(type);
407 if (templateArg.isEmpty()) {
410 if (SchemaTreeEffectiveStatement.class.isAssignableFrom(type)) {
411 // X is known to be QName
412 return (Optional<X>) templateArg.map(template -> ((QName) template).bindTo(targetModule));
418 boolean hasSubstatementImpl(final @NonNull Class<? extends EffectiveStatement<?, ?>> type) {
419 return substatements instanceof List ? super.hasSubstatementImpl(type)
420 // We do not allow deletion of partially-materialized statements, hence this is accurate
421 : prototype.hasSubstatement(type);
425 public <Y extends DeclaredStatement<QName>, Z extends SchemaTreeEffectiveStatement<Y>>
426 StmtContext<QName, Y, Z> requestSchemaTreeChild(final QName qname) {
427 if (substatements instanceof List) {
428 // We have performed materialization, hence we have triggered creation of all our schema tree child
433 final QName templateQName = qname.bindTo(StmtContextUtils.getRootModuleQName(prototype));
434 LOG.debug("Materializing child {} from {}", qname, templateQName);
436 final StmtContext<?, ?, ?> template;
437 if (prototype instanceof InferredStatementContext<?, ?, ?> inferredPrototype) {
438 // Note: we need to access namespace here, as the target statement may have already been populated, in which
439 // case we want to obtain the statement in local namespace storage.
440 template = inferredPrototype.getFromNamespace(ParserNamespaces.schemaTree(), templateQName);
442 template = prototype.allSubstatementsStream()
443 .filter(stmt -> stmt.producesEffective(SchemaTreeEffectiveStatement.class)
444 && templateQName.equals(stmt.argument()))
449 if (template == null) {
450 // We do not have a template, this child does not exist. It may be added later, but that is someone else's
452 LOG.debug("Child {} does not have a template", qname);
456 @SuppressWarnings("unchecked")
457 final var ret = (Mutable<QName, Y, Z>) copySubstatement(template).orElseThrow(
458 () -> new InferenceException(this, "Failed to materialize child %s template %s", qname, template));
459 addMaterialized(template, ensureCompletedPhase(ret));
461 LOG.debug("Child {} materialized", qname);
465 // Instantiate this statement's effective substatements. Note this method has side-effects in namespaces and overall
466 // BuildGlobalContext, hence it must be called at most once.
467 private List<ReactorStmtCtx<?, ?, ?>> ensureEffectiveSubstatements() {
468 accessSubstatements();
469 return substatements instanceof List ? castEffective(substatements)
470 // We have either not started or have only partially-materialized statements, ensure full materialization
471 : initializeSubstatements();
475 Iterator<ReactorStmtCtx<?, ?, ?>> effectiveChildrenToComplete() {
476 // When we have not initialized, there are no statements to catch up: we will catch up when we are copying
477 // from prototype (which is already at ModelProcessingPhase.EFFECTIVE_MODEL).
478 if (substatements == null) {
479 return Collections.emptyIterator();
481 accessSubstatements();
482 if (substatements instanceof HashMap) {
483 return castMaterialized(substatements).values().iterator();
485 return castEffective(substatements).iterator();
490 Stream<? extends @NonNull ReactorStmtCtx<?, ?, ?>> streamDeclared() {
491 return Stream.empty();
495 Stream<? extends @NonNull ReactorStmtCtx<?, ?, ?>> streamEffective() {
496 return ensureEffectiveSubstatements().stream().filter(StmtContext::isSupportedToBuildEffective);
499 private void accessSubstatements() {
500 if (substatements instanceof String) {
501 throw new VerifyException("Access to " + substatements + " substatements of " + this);
506 void markNoParentRef() {
507 final Object local = substatements;
509 markNoParentRef(castEffective(local));
514 int sweepSubstatements() {
515 final Object local = substatements;
516 substatements = SWEPT_SUBSTATEMENTS;
518 if (local instanceof List) {
519 final List<ReactorStmtCtx<?, ?, ?>> list = castEffective(local);
521 count = countUnswept(list);
526 private List<ReactorStmtCtx<?, ?, ?>> initializeSubstatements() {
527 final var declared = prototype.mutableDeclaredSubstatements();
528 final var effective = prototype.mutableEffectiveSubstatements();
530 // We are about to instantiate some substatements. The simple act of materializing them may end up triggering
531 // namespace lookups, which in turn can materialize copies by themselves, running ahead of our materialization.
532 // We therefore need a meeting place for, which are the partially-materialized substatements. If we do not have
533 // them yet, instantiate them and we need to populate them as well.
534 final int expectedSize = declared.size() + effective.size();
535 var materializedSchemaTree = castMaterialized(substatements);
536 if (materializedSchemaTree == null) {
537 substatements = materializedSchemaTree = Maps.newHashMapWithExpectedSize(expectedSize);
540 final var buffer = new ArrayList<ReactorStmtCtx<?, ?, ?>>(expectedSize);
541 for (var stmtContext : declared) {
542 if (stmtContext.isSupportedByFeatures()) {
543 copySubstatement(stmtContext, buffer, materializedSchemaTree);
546 for (var stmtContext : effective) {
547 copySubstatement(stmtContext, buffer, materializedSchemaTree);
550 final var ret = beforeAddEffectiveStatementUnsafe(ImmutableList.of(), buffer.size());
560 // Statement copy mess starts here. As it turns out, it's not that much of a mess, but it does make your head spin
561 // sometimes. Tread softly because you tread on my dreams.
564 private ImmutableList<ReactorStmtCtx<?, ?, ?>> adoptSubstatements(final List<EffectiveCopy> list) {
566 .map(copy -> copy.toChildContext(this))
567 .collect(ImmutableList.toImmutableList());
570 private List<EffectiveCopy> effectiveCopy(final Stream<? extends ReactorStmtCtx<?, ?, ?>> stream) {
572 .map(this::effectiveCopy)
573 .filter(Objects::nonNull)
574 .collect(Collectors.toUnmodifiableList());
578 * Create an effective copy of a prototype's substatement as a child of this statement. This is a bit tricky, as
579 * we are called from {@link #tryToReusePrototype(StatementFactory)} and we are creating copies of prototype
580 * statements -- which triggers {@link StatementSupport#onStatementAdded(Mutable)}, which in turn can loop around
581 * to {@link #requestSchemaTreeChild(QName)} -- which creates the statement and hence we can end up performing two
584 * @param template Prototype substatement
585 * @return An {@link EffectiveCopy}, or {@code null} if not applicable
587 private @Nullable EffectiveCopy effectiveCopy(final ReactorStmtCtx<?, ?, ?> template) {
588 if (substatements instanceof HashMap) {
589 // we have partial materialization by requestSchemaTreeChild() after we started tryToReusePrototype(), check
590 // if the statement has already been copied -- we need to pick it up in that case.
591 final var copy = castMaterialized(substatements).get(template);
593 return new EffectiveCopy(template, copy);
597 final var copy = template.asEffectiveChildOf(this, childCopyType(), targetModule);
598 return copy == null ? null : new EffectiveCopy(template, copy);
601 private void copySubstatement(final Mutable<?, ?, ?> substatement, final Collection<ReactorStmtCtx<?, ?, ?>> buffer,
602 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree) {
603 // Consult materialized substatements. We are in a copy operation and will end up throwing materialized
604 // statements away -- hence we do not perform Map.remove() to save ourselves a mutation operation.
606 // We could also perform a Map.containsKey() and perform a bulk add, but that would mean the statement order
607 // against parent would change -- and we certainly do not want that to happen.
608 final var materialized = findMaterialized(materializedSchemaTree, substatement);
609 if (materialized == null) {
610 copySubstatement(substatement).ifPresent(copy -> {
611 final var cast = ensureCompletedPhase(copy);
612 materializedSchemaTree.put(substatement, cast);
616 buffer.add(materialized);
620 private <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>> Optional<Mutable<X, Y, Z>>
621 copySubstatement(final StmtContext<X, Y, Z> substatement) {
622 return substatement.copyAsChildOf(this, childCopyType(), targetModule);
625 private void addMaterialized(final StmtContext<?, ?, ?> template, final ReactorStmtCtx<?, ?, ?> copy) {
626 final HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree;
627 if (substatements == null) {
628 // Lazy initialization of backing map. We do not expect this to be used often or multiple times -- each hit
629 // here means an inference along schema tree, such as deviate/augment. HashMap requires power-of-two and
630 // defaults to 0.75 load factor -- we therefore size it to 4, i.e. next two inserts will not cause a
631 // resizing operation.
632 materializedSchemaTree = new HashMap<>(4);
633 substatements = materializedSchemaTree;
636 verify(substatements instanceof HashMap, "Unexpected substatements %s", substatements);
637 materializedSchemaTree = castMaterialized(substatements);
640 final var existing = materializedSchemaTree.put(template, copy);
641 if (existing != null) {
642 throw new VerifyException(
643 "Unexpected duplicate request for " + copy.argument() + " previous result was " + existing);
647 private static @Nullable ReactorStmtCtx<?, ?, ?> findMaterialized(
648 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree,
649 final StmtContext<?, ?, ?> template) {
650 return materializedSchemaTree == null ? null : materializedSchemaTree.get(template);
653 @SuppressWarnings("unchecked")
654 private static List<ReactorStmtCtx<?, ?, ?>> castEffective(final Object substatements) {
655 return (List<ReactorStmtCtx<?, ?, ?>>) substatements;
658 @SuppressWarnings("unchecked")
659 private static HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> castMaterialized(final Object substatements) {
660 return (HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>>) substatements;
663 // Statement copy mess ends here
666 * KEEP THINGS ORGANIZED!
668 * below methods exist in the same form in SubstatementContext. If any adjustment is made here, make sure it is
669 * properly updated there.
672 public A argument() {
677 public StatementContextBase<?, ?, ?> getParentContext() {
682 public StorageNodeType getStorageNodeType() {
683 return StorageNodeType.STATEMENT_LOCAL;
687 public StatementContextBase<?, ?, ?> getParentNamespaceStorage() {
692 public RootStatementContext<?, ?, ?> getRoot() {
693 return parent.getRoot();
697 public EffectiveConfig effectiveConfig() {
698 return effectiveConfig(parent);
702 protected boolean isIgnoringIfFeatures() {
703 return isIgnoringIfFeatures(parent);
707 protected boolean isIgnoringConfig() {
708 return isIgnoringConfig(parent);
712 public boolean isSupportedToBuildEffective() {
713 // Our prototype may have fizzled, for example due to it being a implicit statement guarded by if-feature which
714 // evaluates to false. If that happens, this statement also needs to report unsupported -- and we want to cache
715 // that information for future reuse.
716 boolean ret = super.isSupportedToBuildEffective();
717 if (ret && !prototype.isSupportedToBuildEffective()) {
725 protected boolean isParentSupportedByFeatures() {
726 return parent.isSupportedByFeatures();