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.StmtContext;
45 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
46 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
51 * A statement which has been inferred to exist. Functionally it is equivalent to a SubstatementContext, but it is not
52 * backed by a declaration (and declared statements). It is backed by a prototype StatementContextBase and has only
53 * effective substatements, which are either transformed from that prototype or added by inference.
55 final class InferredStatementContext<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
56 extends StatementContextBase<A, D, E> implements OnDemandSchemaTreeStorageNode {
57 // An effective copy view, with enough information to decide what to do next
58 private static final class EffectiveCopy implements Immutable {
60 private final ReactorStmtCtx<?, ?, ?> orig;
61 // Effective view, if the statement is to be reused it equals to orig
62 private final ReactorStmtCtx<?, ?, ?> copy;
64 EffectiveCopy(final ReactorStmtCtx<?, ?, ?> orig, final ReactorStmtCtx<?, ?, ?> copy) {
65 this.orig = requireNonNull(orig);
66 this.copy = requireNonNull(copy);
73 ReactorStmtCtx<?, ?, ?> toChildContext(final @NonNull InferredStatementContext<?, ?, ?> parent) {
74 return isReused() ? orig.replicaAsChildOf(parent) : copy;
77 ReactorStmtCtx<?, ?, ?> toReusedChild(final @NonNull InferredStatementContext<?, ?, ?> parent) {
78 verify(isReused(), "Attempted to discard copy %s", copy);
79 return orig.replicaAsChildOf(parent);
83 private static final Logger LOG = LoggerFactory.getLogger(InferredStatementContext.class);
85 // Sentinel objects for 'substatements', String is a good enough type
86 private static final @NonNull String REUSED_SUBSTATEMENTS = "reused";
87 private static final @NonNull String SWEPT_SUBSTATEMENTS = "swept";
89 private final @NonNull StatementContextBase<A, D, E> prototype;
90 private final @NonNull StatementContextBase<?, ?, ?> parent;
91 private final @NonNull ReactorStmtCtx<A, D, E> originalCtx;
92 private final QNameModule targetModule;
93 private final A argument;
96 * Effective substatements, lazily materialized. This field can have four states:
98 * <li>it can be {@code null}, in which case no materialization has taken place</li>
99 * <li>it can be a {@link HashMap}, in which case partial materialization has taken place</li>
100 * <li>it can be a {@link List}, in which case full materialization has taken place</li>
101 * <li>it can be {@link SWEPT_SUBSTATEMENTS}, in which case materialized state is no longer available</li>
104 private Object substatements;
106 private InferredStatementContext(final InferredStatementContext<A, D, E> original,
107 final StatementContextBase<?, ?, ?> parent) {
109 this.parent = requireNonNull(parent);
110 this.targetModule = original.targetModule;
111 this.prototype = original.prototype;
112 this.originalCtx = original.originalCtx;
113 this.argument = original.argument;
114 // Substatements are initialized here
115 this.substatements = ImmutableList.of();
118 InferredStatementContext(final StatementContextBase<?, ?, ?> parent, final StatementContextBase<A, D, E> prototype,
119 final CopyType myCopyType, final CopyType childCopyType, final QNameModule targetModule) {
120 super(prototype, myCopyType, childCopyType);
121 this.parent = requireNonNull(parent);
122 this.prototype = requireNonNull(prototype);
123 this.argument = targetModule == null ? prototype.argument()
124 : prototype.definition().adaptArgumentValue(prototype, targetModule);
125 this.targetModule = targetModule;
127 final var origCtx = prototype.getOriginalCtx().orElse(prototype);
128 verify(origCtx instanceof ReactorStmtCtx, "Unexpected original %s", origCtx);
129 this.originalCtx = (ReactorStmtCtx<A, D, E>) origCtx;
131 // Mark prototype as blocking statement cleanup
136 public Collection<? extends StatementContextBase<?, ?, ?>> mutableDeclaredSubstatements() {
137 return ImmutableList.of();
141 public Collection<? extends Mutable<?, ?, ?>> mutableEffectiveSubstatements() {
142 return mutableEffectiveSubstatements(ensureEffectiveSubstatements());
146 public Iterable<? extends @NonNull StmtContext<?, ?, ?>> allSubstatements() {
147 // No need to concat with declared
148 return effectiveSubstatements();
152 public Stream<? extends @NonNull StmtContext<?, ?, ?>> allSubstatementsStream() {
153 // No need to concat with declared
154 return effectiveSubstatements().stream();
158 public StatementSourceReference sourceReference() {
159 return originalCtx.sourceReference();
163 public String rawArgument() {
164 return originalCtx.rawArgument();
168 public Optional<StmtContext<A, D, E>> getOriginalCtx() {
169 return Optional.of(originalCtx);
173 public Optional<StmtContext<A, D, E>> getPreviousCopyCtx() {
174 return Optional.of(prototype);
178 public D declared() {
180 * Share original instance of declared statement between all effective statements which have been copied or
181 * derived from this original declared statement.
183 return originalCtx.declared();
187 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef) {
188 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef);
192 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef,
193 final String statementArg) {
194 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef,
199 public void addEffectiveSubstatement(final Mutable<?, ?, ?> substatement) {
200 substatements = addEffectiveSubstatement(ensureEffectiveSubstatements(), substatement);
201 afterAddEffectiveSubstatement(substatement);
205 void addEffectiveSubstatementsImpl(final Collection<? extends Mutable<?, ?, ?>> statements) {
206 substatements = addEffectiveSubstatementsImpl(ensureEffectiveSubstatements(), statements);
210 InferredStatementContext<A, D, E> reparent(final StatementContextBase<?, ?, ?> newParent) {
211 return new InferredStatementContext<>(this, newParent);
215 E createEffective(final StatementFactory<A, D, E> factory) {
216 // If we have not materialized we do not have a difference in effective substatements, hence we can forward
217 // towards the source of the statement.
218 accessSubstatements();
219 return substatements == null ? tryToReusePrototype(factory) : createInferredEffective(factory);
222 private @NonNull E createInferredEffective(final @NonNull StatementFactory<A, D, E> factory) {
223 return createInferredEffective(factory, this, streamDeclared(), streamEffective());
227 E createInferredEffective(final StatementFactory<A, D, E> factory, final InferredStatementContext<A, D, E> ctx,
228 final Stream<? extends StmtContext<?, ?, ?>> declared,
229 final Stream<? extends StmtContext<?, ?, ?>> effective) {
230 return originalCtx.createInferredEffective(factory, ctx, declared, effective);
233 private @NonNull E tryToReusePrototype(final @NonNull StatementFactory<A, D, E> factory) {
234 final E origEffective = prototype.buildEffective();
235 final Collection<? extends @NonNull EffectiveStatement<?, ?>> origSubstatements =
236 origEffective.effectiveSubstatements();
238 // First check if we can reuse the entire prototype
239 if (!factory.canReuseCurrent(this, prototype, origSubstatements)) {
240 return internAlongCopyAxis(factory, tryToReuseSubstatements(factory, origEffective));
243 // We can reuse this statement let's see if all statements agree...
244 // ... no substatements to deal with, we can freely reuse the original
245 if (origSubstatements.isEmpty()) {
246 LOG.debug("Reusing empty: {}", origEffective);
247 substatements = ImmutableList.of();
249 return origEffective;
252 // ... all are context independent, reuse the original
253 if (allSubstatementsContextIndependent()) {
254 LOG.debug("Reusing context-independent: {}", origEffective);
255 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
257 return origEffective;
260 // ... copy-sensitive check
261 final List<EffectiveCopy> declCopy = prototype.streamDeclared()
262 .map(sub -> effectiveCopy((ReactorStmtCtx<?, ?, ?>) sub))
263 .filter(Objects::nonNull)
264 .collect(Collectors.toUnmodifiableList());
265 final List<EffectiveCopy> effCopy = prototype.streamEffective()
266 .map(sub -> effectiveCopy((ReactorStmtCtx<?, ?, ?>) sub))
267 .filter(Objects::nonNull)
268 .collect(Collectors.toUnmodifiableList());
270 // ... are any copy-sensitive?
271 if (allReused(declCopy) && allReused(effCopy)) {
272 LOG.debug("Reusing after substatement check: {}", origEffective);
273 substatements = noRefs() ? REUSED_SUBSTATEMENTS
274 : reusePrototypeReplicas(Streams.concat(declCopy.stream(), effCopy.stream())
275 .map(copy -> copy.toReusedChild(this)));
277 return origEffective;
280 // *sigh*, ok, heavy lifting through a shallow copy
281 final List<ReactorStmtCtx<?, ?, ?>> declared = declCopy.stream()
282 .map(copy -> copy.toChildContext(this))
283 .collect(ImmutableList.toImmutableList());
284 final List<ReactorStmtCtx<?, ?, ?>> effective = effCopy.stream()
285 .map(copy -> copy.toChildContext(this))
286 .collect(ImmutableList.toImmutableList());
287 substatements = declared.isEmpty() ? effective
288 : Streams.concat(declared.stream(), effective.stream()).collect(ImmutableList.toImmutableList());
291 // Values are the effective copies, hence this efficiently deals with recursion.
292 return internAlongCopyAxis(factory,
293 originalCtx.createInferredEffective(factory, this, declared.stream(), effective.stream()));
296 private @NonNull E tryToReuseSubstatements(final @NonNull StatementFactory<A, D, E> factory,
297 final @NonNull E original) {
298 if (allSubstatementsContextIndependent()) {
299 LOG.debug("Reusing substatements of: {}", prototype);
300 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
302 return factory.copyEffective(this, original);
305 // Fall back to full instantiation, which populates our substatements. Then check if we should be reusing
306 // the substatement list, as this operation turned out to not affect them.
307 final E effective = createInferredEffective(factory);
308 // Since we have forced instantiation to deal with this case, we also need to reset the 'modified' flag
311 if (sameSubstatements(original.effectiveSubstatements(), effective)) {
312 LOG.debug("Reusing unchanged substatements of: {}", prototype);
313 return factory.copyEffective(this, original);
318 private @NonNull E internAlongCopyAxis(final StatementFactory<A, D, E> factory, final @NonNull E stmt) {
320 final EffectiveStatementState state = factory.extractEffectiveState(stmt);
322 return prototype.unmodifiedEffectiveSource().attachEffectiveCopy(state, stmt);
328 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas() {
329 return reusePrototypeReplicas(Streams.concat(prototype.streamDeclared(), prototype.streamEffective()));
332 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas(final Stream<StmtContext<?, ?, ?>> stream) {
335 final ReplicaStatementContext<?, ?, ?> ret = ((ReactorStmtCtx<?, ?, ?>) stmt).replicaAsChildOf(this);
336 ret.buildEffective();
339 .collect(Collectors.toUnmodifiableList());
342 private static boolean sameSubstatements(final Collection<?> original, final EffectiveStatement<?, ?> effective) {
343 final var copied = effective.effectiveSubstatements();
344 if (copied != effective.effectiveSubstatements() || original.size() != copied.size()) {
345 // Do not bother if result is treating substatements as transient
349 final var cit = copied.iterator();
350 for (var origChild : original) {
351 verify(cit.hasNext());
352 // Identity comparison on purpose to side-step whatever equality there might be. We want to reuse instances
354 if (origChild != cit.next()) {
358 verify(!cit.hasNext());
362 private static boolean allReused(final List<EffectiveCopy> entries) {
363 return entries.stream().allMatch(EffectiveCopy::isReused);
367 ReactorStmtCtx<A, D, E> unmodifiedEffectiveSource() {
368 return isModified() ? this : prototype.unmodifiedEffectiveSource();
372 boolean hasEmptySubstatements() {
373 if (substatements == null) {
374 return prototype.hasEmptySubstatements();
376 return substatements instanceof HashMap ? false : ((List<?>) substatements).isEmpty();
380 boolean noSensitiveSubstatements() {
381 accessSubstatements();
382 if (substatements == null) {
383 // No difference, defer to prototype
384 return prototype.allSubstatementsContextIndependent();
386 if (substatements instanceof List) {
387 // Fully materialized, walk all statements
388 return noSensitiveSubstatements(castEffective(substatements));
391 // Partially-materialized. This case has three distinct outcomes:
392 // - prototype does not have a sensitive statement (1)
393 // - protype has a sensitive substatement, and
394 // - we have not marked is as unsupported (2)
395 // - we have marked it as unsupported (3)
397 // Determining the outcome between (2) and (3) is a bother, this check errs on the side of false negative side
398 // and treats (3) as (2) -- i.e. even if we marked a sensitive statement as unsupported, we still consider it
399 // as affecting the result.
400 return prototype.allSubstatementsContextIndependent()
401 && noSensitiveSubstatements(castMaterialized(substatements).values());
405 <X, Z extends EffectiveStatement<X, ?>> @NonNull Optional<X> findSubstatementArgumentImpl(
406 final @NonNull Class<Z> type) {
407 if (substatements instanceof List) {
408 return super.findSubstatementArgumentImpl(type);
411 final Optional<X> templateArg = prototype.findSubstatementArgument(type);
412 if (templateArg.isEmpty()) {
415 if (SchemaTreeEffectiveStatement.class.isAssignableFrom(type)) {
416 // X is known to be QName
417 return (Optional<X>) templateArg.map(template -> ((QName) template).bindTo(targetModule));
423 boolean hasSubstatementImpl(final @NonNull Class<? extends EffectiveStatement<?, ?>> type) {
424 return substatements instanceof List ? super.hasSubstatementImpl(type)
425 // We do not allow deletion of partially-materialized statements, hence this is accurate
426 : prototype.hasSubstatement(type);
430 public <Y extends DeclaredStatement<QName>, Z extends SchemaTreeEffectiveStatement<Y>>
431 StmtContext<QName, Y, Z> requestSchemaTreeChild(final QName qname) {
432 if (substatements instanceof List) {
433 // We have performed materialization, hence we have triggered creation of all our schema tree child
438 final QName templateQName = qname.bindTo(StmtContextUtils.getRootModuleQName(prototype));
439 LOG.debug("Materializing child {} from {}", qname, templateQName);
441 final StmtContext<?, ?, ?> template;
442 if (prototype instanceof InferredStatementContext) {
443 // Note: we need to access namespace here, as the target statement may have already been populated, in which
444 // case we want to obtain the statement in local namespace storage.
445 template = ((InferredStatementContext<?, ?, ?>) prototype).getFromNamespace(ParserNamespaces.schemaTree(),
448 template = prototype.allSubstatementsStream()
449 .filter(stmt -> stmt.producesEffective(SchemaTreeEffectiveStatement.class)
450 && templateQName.equals(stmt.argument()))
455 if (template == null) {
456 // We do not have a template, this child does not exist. It may be added later, but that is someone else's
458 LOG.debug("Child {} does not have a template", qname);
462 @SuppressWarnings("unchecked")
463 final var ret = (Mutable<QName, Y, Z>) copySubstatement(template).orElseThrow(
464 () -> new InferenceException(this, "Failed to materialize child %s template %s", qname, template));
465 addMaterialized(template, ensureCompletedPhase(ret));
467 LOG.debug("Child {} materialized", qname);
471 // Instantiate this statement's effective substatements. Note this method has side-effects in namespaces and overall
472 // BuildGlobalContext, hence it must be called at most once.
473 private List<ReactorStmtCtx<?, ?, ?>> ensureEffectiveSubstatements() {
474 accessSubstatements();
475 return substatements instanceof List ? castEffective(substatements)
476 // We have either not started or have only partially-materialized statements, ensure full materialization
477 : initializeSubstatements();
481 Iterator<ReactorStmtCtx<?, ?, ?>> effectiveChildrenToComplete() {
482 // When we have not initialized, there are no statements to catch up: we will catch up when we are copying
483 // from prototype (which is already at ModelProcessingPhase.EFFECTIVE_MODEL).
484 if (substatements == null) {
485 return Collections.emptyIterator();
487 accessSubstatements();
488 if (substatements instanceof HashMap) {
489 return castMaterialized(substatements).values().iterator();
491 return castEffective(substatements).iterator();
496 Stream<? extends @NonNull StmtContext<?, ?, ?>> streamDeclared() {
497 return Stream.empty();
501 Stream<? extends @NonNull StmtContext<?, ?, ?>> streamEffective() {
502 return ensureEffectiveSubstatements().stream().filter(StmtContext::isSupportedToBuildEffective);
505 private void accessSubstatements() {
506 if (substatements instanceof String) {
507 throw new VerifyException("Access to " + substatements + " substatements of " + this);
512 void markNoParentRef() {
513 final Object local = substatements;
515 markNoParentRef(castEffective(local));
520 int sweepSubstatements() {
521 final Object local = substatements;
522 substatements = SWEPT_SUBSTATEMENTS;
524 if (local instanceof List) {
525 final List<ReactorStmtCtx<?, ?, ?>> list = castEffective(local);
527 count = countUnswept(list);
532 private List<ReactorStmtCtx<?, ?, ?>> initializeSubstatements() {
533 final var declared = prototype.mutableDeclaredSubstatements();
534 final var effective = prototype.mutableEffectiveSubstatements();
536 // We are about to instantiate some substatements. The simple act of materializing them may end up triggering
537 // namespace lookups, which in turn can materialize copies by themselves, running ahead of our materialization.
538 // We therefore need a meeting place for, which are the partially-materialized substatements. If we do not have
539 // them yet, instantiate them and we need to populate them as well.
540 final int expectedSize = declared.size() + effective.size();
541 var materializedSchemaTree = castMaterialized(substatements);
542 if (materializedSchemaTree == null) {
543 substatements = materializedSchemaTree = Maps.newHashMapWithExpectedSize(expectedSize);
546 final var buffer = new ArrayList<ReactorStmtCtx<?, ?, ?>>(expectedSize);
547 for (var stmtContext : declared) {
548 if (stmtContext.isSupportedByFeatures()) {
549 copySubstatement(stmtContext, buffer, materializedSchemaTree);
552 for (var stmtContext : effective) {
553 copySubstatement(stmtContext, buffer, materializedSchemaTree);
556 final var ret = beforeAddEffectiveStatementUnsafe(ImmutableList.of(), buffer.size());
566 // Statement copy mess starts here. As it turns out, it's not that much of a mess, but it does make your head spin
567 // sometimes. Tread softly because you tread on my dreams.
570 private EffectiveCopy effectiveCopy(final ReactorStmtCtx<?, ?, ?> stmt) {
571 final ReactorStmtCtx<?, ?, ?> effective = stmt.asEffectiveChildOf(this, childCopyType(), targetModule);
572 return effective == null ? null : new EffectiveCopy(stmt, effective);
575 private void copySubstatement(final Mutable<?, ?, ?> substatement, final Collection<ReactorStmtCtx<?, ?, ?>> buffer,
576 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree) {
577 // Consult materialized substatements. We are in a copy operation and will end up throwing materialized
578 // statements away -- hence we do not perform Map.remove() to save ourselves a mutation operation.
580 // We could also perform a Map.containsKey() and perform a bulk add, but that would mean the statement order
581 // against parent would change -- and we certainly do not want that to happen.
582 final var materialized = findMaterialized(materializedSchemaTree, substatement);
583 if (materialized == null) {
584 copySubstatement(substatement).ifPresent(copy -> {
585 final var cast = ensureCompletedPhase(copy);
586 materializedSchemaTree.put(substatement, cast);
590 buffer.add(materialized);
594 private <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>> Optional<Mutable<X, Y, Z>>
595 copySubstatement(final StmtContext<X, Y, Z> substatement) {
596 return substatement.copyAsChildOf(this, childCopyType(), targetModule);
599 private void addMaterialized(final StmtContext<?, ?, ?> template, final ReactorStmtCtx<?, ?, ?> copy) {
600 final HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree;
601 if (substatements == null) {
602 // Lazy initialization of backing map. We do not expect this to be used often or multiple times -- each hit
603 // here means an inference along schema tree, such as deviate/augment. HashMap requires power-of-two and
604 // defaults to 0.75 load factor -- we therefore size it to 4, i.e. next two inserts will not cause a
605 // resizing operation.
606 materializedSchemaTree = new HashMap<>(4);
607 substatements = materializedSchemaTree;
610 verify(substatements instanceof HashMap, "Unexpected substatements %s", substatements);
611 materializedSchemaTree = castMaterialized(substatements);
614 final var existing = materializedSchemaTree.put(template, copy);
615 if (existing != null) {
616 throw new VerifyException(
617 "Unexpected duplicate request for " + copy.argument() + " previous result was " + existing);
621 private static @Nullable ReactorStmtCtx<?, ?, ?> findMaterialized(
622 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree,
623 final StmtContext<?, ?, ?> template) {
624 return materializedSchemaTree == null ? null : materializedSchemaTree.get(template);
627 @SuppressWarnings("unchecked")
628 private static List<ReactorStmtCtx<?, ?, ?>> castEffective(final Object substatements) {
629 return (List<ReactorStmtCtx<?, ?, ?>>) substatements;
632 @SuppressWarnings("unchecked")
633 private static HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> castMaterialized(final Object substatements) {
634 return (HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>>) substatements;
637 // Statement copy mess ends here
640 * KEEP THINGS ORGANIZED!
642 * below methods exist in the same form in SubstatementContext. If any adjustment is made here, make sure it is
643 * properly updated there.
646 public A argument() {
651 public StatementContextBase<?, ?, ?> getParentContext() {
656 public StorageNodeType getStorageNodeType() {
657 return StorageNodeType.STATEMENT_LOCAL;
661 public StatementContextBase<?, ?, ?> getParentNamespaceStorage() {
666 public RootStatementContext<?, ?, ?> getRoot() {
667 return parent.getRoot();
671 public EffectiveConfig effectiveConfig() {
672 return effectiveConfig(parent);
676 protected boolean isIgnoringIfFeatures() {
677 return isIgnoringIfFeatures(parent);
681 protected boolean isIgnoringConfig() {
682 return isIgnoringConfig(parent);
686 protected boolean isParentSupportedByFeatures() {
687 return parent.isSupportedByFeatures();