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.meta.StatementSourceReference;
37 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
38 import org.opendaylight.yangtools.yang.parser.spi.ParserNamespaces;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStatementState;
41 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
42 import org.opendaylight.yangtools.yang.parser.spi.meta.OnDemandSchemaTreeStorage;
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.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 OnDemandSchemaTreeStorage {
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;
95 // Indicates whether or not this statement's substatement file was modified, i.e. it is not quite the same as the
97 private boolean modified;
100 * Effective substatements, lazily materialized. This field can have four states:
102 * <li>it can be {@code null}, in which case no materialization has taken place</li>
103 * <li>it can be a {@link HashMap}, in which case partial materialization has taken place</li>
104 * <li>it can be a {@link List}, in which case full materialization has taken place</li>
105 * <li>it can be {@link SWEPT_SUBSTATEMENTS}, in which case materialized state is no longer available</li>
108 private Object substatements;
110 private InferredStatementContext(final InferredStatementContext<A, D, E> original,
111 final StatementContextBase<?, ?, ?> parent) {
113 this.parent = requireNonNull(parent);
114 targetModule = original.targetModule;
115 prototype = original.prototype;
116 originalCtx = original.originalCtx;
117 argument = original.argument;
118 modified = original.modified;
119 // Substatements are initialized here
120 substatements = ImmutableList.of();
123 InferredStatementContext(final StatementContextBase<?, ?, ?> parent, final StatementContextBase<A, D, E> prototype,
124 final CopyType myCopyType, final CopyType childCopyType, final QNameModule targetModule) {
125 super(prototype, myCopyType, childCopyType);
126 this.parent = requireNonNull(parent);
127 this.prototype = requireNonNull(prototype);
128 argument = targetModule == null ? prototype.argument()
129 : prototype.definition().adaptArgumentValue(prototype, targetModule);
130 this.targetModule = targetModule;
132 final var origCtx = prototype.getOriginalCtx().orElse(prototype);
133 verify(origCtx instanceof ReactorStmtCtx, "Unexpected original %s", origCtx);
134 originalCtx = (ReactorStmtCtx<A, D, E>) origCtx;
136 // Mark prototype as blocking statement cleanup
141 public Collection<? extends StatementContextBase<?, ?, ?>> mutableDeclaredSubstatements() {
142 return ImmutableList.of();
146 public Collection<? extends Mutable<?, ?, ?>> mutableEffectiveSubstatements() {
147 return mutableEffectiveSubstatements(ensureEffectiveSubstatements());
151 public Iterable<? extends @NonNull StmtContext<?, ?, ?>> allSubstatements() {
152 // No need to concat with declared
153 return effectiveSubstatements();
157 public Stream<? extends @NonNull StmtContext<?, ?, ?>> allSubstatementsStream() {
158 // No need to concat with declared
159 return effectiveSubstatements().stream();
163 public StatementSourceReference sourceReference() {
164 return originalCtx.sourceReference();
168 public String rawArgument() {
169 return originalCtx.rawArgument();
173 public Optional<StmtContext<A, D, E>> getOriginalCtx() {
174 return Optional.of(originalCtx);
178 public Optional<StmtContext<A, D, E>> getPreviousCopyCtx() {
179 return Optional.of(prototype);
183 public D declared() {
185 * Share original instance of declared statement between all effective statements which have been copied or
186 * derived from this original declared statement.
188 return originalCtx.declared();
192 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef) {
193 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef);
197 public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef,
198 final String statementArg) {
199 substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef,
204 public void addEffectiveSubstatement(final Mutable<?, ?, ?> substatement) {
205 substatements = addEffectiveSubstatement(ensureEffectiveSubstatements(), substatement);
206 afterAddEffectiveSubstatement(substatement);
210 void addEffectiveSubstatementsImpl(final Collection<? extends Mutable<?, ?, ?>> statements) {
211 substatements = addEffectiveSubstatementsImpl(ensureEffectiveSubstatements(), statements);
215 InferredStatementContext<A, D, E> reparent(final StatementContextBase<?, ?, ?> newParent) {
216 return new InferredStatementContext<>(this, newParent);
220 E createEffective(final StatementFactory<A, D, E> factory) {
221 // If we have not materialized we do not have a difference in effective substatements, hence we can forward
222 // towards the source of the statement.
223 accessSubstatements();
224 return substatements == null ? tryToReusePrototype(factory) : createInferredEffective(factory);
227 private @NonNull E createInferredEffective(final @NonNull StatementFactory<A, D, E> factory) {
228 return createInferredEffective(factory, this, streamDeclared(), streamEffective());
232 E createInferredEffective(final StatementFactory<A, D, E> factory, final InferredStatementContext<A, D, E> ctx,
233 final Stream<? extends ReactorStmtCtx<?, ?, ?>> declared,
234 final Stream<? extends ReactorStmtCtx<?, ?, ?>> effective) {
235 return originalCtx.createInferredEffective(factory, ctx, declared, effective);
238 private @NonNull E tryToReusePrototype(final @NonNull StatementFactory<A, D, E> factory) {
239 final var origEffective = prototype.buildEffective();
240 final var origSubstatements = origEffective.effectiveSubstatements();
242 // First check if we can reuse the entire prototype
243 if (!factory.canReuseCurrent(this, prototype, origSubstatements)) {
244 return internAlongCopyAxis(factory, tryToReuseSubstatements(factory, origEffective));
247 // We can reuse this statement let's see if all statements agree...
248 // ... no substatements to deal with, we can freely reuse the original
249 if (origSubstatements.isEmpty()) {
250 LOG.debug("Reusing empty: {}", origEffective);
251 substatements = ImmutableList.of();
253 return origEffective;
256 // ... all are context independent, reuse the original
257 if (allSubstatementsContextIndependent()) {
258 LOG.debug("Reusing context-independent: {}", origEffective);
259 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
261 return origEffective;
264 // ... copy-sensitive check
265 final var declCopy = effectiveCopy(prototype.streamDeclared());
266 final var effCopy = effectiveCopy(prototype.streamEffective());
268 // ... are any copy-sensitive?
269 if (allReused(declCopy) && allReused(effCopy)) {
270 LOG.debug("Reusing after substatement check: {}", origEffective);
271 substatements = noRefs() ? REUSED_SUBSTATEMENTS
272 : reusePrototypeReplicas(Streams.concat(declCopy.stream(), effCopy.stream())
273 .map(copy -> copy.toReusedChild(this)));
275 return origEffective;
278 // *sigh*, ok, heavy lifting through a shallow copy
279 final var declared = adoptSubstatements(declCopy);
280 final var effective = adoptSubstatements(effCopy);
281 substatements = declared.isEmpty() ? effective
282 : Streams.concat(declared.stream(), effective.stream()).collect(ImmutableList.toImmutableList());
285 // Values are the effective copies, hence this efficiently deals with recursion.
286 return internAlongCopyAxis(factory,
287 originalCtx.createInferredEffective(factory, this, declared.stream(), effective.stream()));
290 private @NonNull E tryToReuseSubstatements(final @NonNull StatementFactory<A, D, E> factory,
291 final @NonNull E original) {
292 if (allSubstatementsContextIndependent()) {
293 LOG.debug("Reusing substatements of: {}", prototype);
294 substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
296 return factory.copyEffective(this, original);
299 // Fall back to full instantiation, which populates our substatements. Then check if we should be reusing
300 // the substatement list, as this operation turned out to not affect them.
301 final E effective = createInferredEffective(factory);
302 // Since we have forced instantiation to deal with this case, we also need to reset the 'modified' flag
305 if (sameSubstatements(original.effectiveSubstatements(), effective)) {
306 LOG.debug("Reusing unchanged substatements of: {}", prototype);
307 return factory.copyEffective(this, original);
312 private @NonNull E internAlongCopyAxis(final StatementFactory<A, D, E> factory, final @NonNull E stmt) {
314 final EffectiveStatementState state = factory.extractEffectiveState(stmt);
316 return prototype.unmodifiedEffectiveSource().attachEffectiveCopy(state, stmt);
322 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas() {
323 return reusePrototypeReplicas(Streams.concat(prototype.streamDeclared(), prototype.streamEffective()));
326 private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas(final Stream<ReactorStmtCtx<?, ?, ?>> stream) {
329 final var ret = stmt.replicaAsChildOf(this);
330 ret.buildEffective();
333 .collect(Collectors.toUnmodifiableList());
336 private static boolean sameSubstatements(final Collection<?> original, final EffectiveStatement<?, ?> effective) {
337 final var copied = effective.effectiveSubstatements();
338 if (copied != effective.effectiveSubstatements() || original.size() != copied.size()) {
339 // Do not bother if result is treating substatements as transient
343 final var cit = copied.iterator();
344 for (var origChild : original) {
345 verify(cit.hasNext());
346 // Identity comparison on purpose to side-step whatever equality there might be. We want to reuse instances
348 if (origChild != cit.next()) {
352 verify(!cit.hasNext());
356 private static boolean allReused(final List<EffectiveCopy> entries) {
357 return entries.stream().allMatch(EffectiveCopy::isReused);
361 ReactorStmtCtx<A, D, E> unmodifiedEffectiveSource() {
362 return modified ? this : prototype.unmodifiedEffectiveSource();
366 boolean hasEmptySubstatements() {
367 return substatements == null ? prototype.hasEmptySubstatements()
368 // Note: partial instantiation, as indicated by HashMap is always non-empty
369 : substatements instanceof List<?> list && list.isEmpty();
373 boolean noSensitiveSubstatements() {
374 accessSubstatements();
375 if (substatements == null) {
376 // No difference, defer to prototype
377 return prototype.allSubstatementsContextIndependent();
379 if (substatements instanceof List) {
380 // Fully materialized, walk all statements
381 return noSensitiveSubstatements(castEffective(substatements));
384 // Partially-materialized. This case has three distinct outcomes:
385 // - prototype does not have a sensitive statement (1)
386 // - protype has a sensitive substatement, and
387 // - we have not marked is as unsupported (2)
388 // - we have marked it as unsupported (3)
390 // Determining the outcome between (2) and (3) is a bother, this check errs on the side of false negative side
391 // and treats (3) as (2) -- i.e. even if we marked a sensitive statement as unsupported, we still consider it
392 // as affecting the result.
393 return prototype.allSubstatementsContextIndependent()
394 && noSensitiveSubstatements(castMaterialized(substatements).values());
398 <X, Z extends EffectiveStatement<X, ?>> @NonNull Optional<X> findSubstatementArgumentImpl(
399 final @NonNull Class<Z> type) {
400 if (substatements instanceof List) {
401 return super.findSubstatementArgumentImpl(type);
404 final Optional<X> templateArg = prototype.findSubstatementArgument(type);
405 if (templateArg.isEmpty()) {
408 if (SchemaTreeEffectiveStatement.class.isAssignableFrom(type)) {
409 // X is known to be QName
410 return (Optional<X>) templateArg.map(template -> ((QName) template).bindTo(targetModule));
416 boolean hasSubstatementImpl(final @NonNull Class<? extends EffectiveStatement<?, ?>> type) {
417 return substatements instanceof List ? super.hasSubstatementImpl(type)
418 // We do not allow deletion of partially-materialized statements, hence this is accurate
419 : prototype.hasSubstatement(type);
423 public <Y extends DeclaredStatement<QName>, Z extends SchemaTreeEffectiveStatement<Y>>
424 StmtContext<QName, Y, Z> requestSchemaTreeChild(final QName qname) {
425 if (substatements instanceof List) {
426 // We have performed materialization, hence we have triggered creation of all our schema tree child
431 // Determine if the requested QName can be satisfied from the prototype: for that to happen it has to match
432 // our transformation implied by targetModule.
433 final var requestedNamespace = qname.getModule();
434 final QName templateQName;
435 if (targetModule != null) {
436 if (!targetModule.equals(requestedNamespace)) {
439 templateQName = qname.bindTo(StmtContextUtils.getModuleQName(prototype));
441 if (!StmtContextUtils.getModuleQName(prototype).equals(requestedNamespace)) {
444 templateQName = qname;
447 LOG.debug("Materializing child {} from {}", qname, templateQName);
449 final StmtContext<?, ?, ?> template;
450 if (prototype instanceof InferredStatementContext<?, ?, ?> inferredPrototype) {
451 // Note: we need to access namespace here, as the target statement may have already been populated, in which
452 // case we want to obtain the statement in local namespace storage.
453 template = inferredPrototype.namespaceItem(ParserNamespaces.schemaTree(), templateQName);
455 template = prototype.allSubstatementsStream()
456 .filter(stmt -> stmt.producesEffective(SchemaTreeEffectiveStatement.class)
457 && templateQName.equals(stmt.argument()))
462 if (template == null) {
463 // We do not have a template, this child does not exist. It may be added later, but that is someone else's
465 LOG.debug("Child {} does not have a template", qname);
469 @SuppressWarnings("unchecked")
470 final var ret = (Mutable<QName, Y, Z>) copySubstatement(template).orElseThrow(
471 () -> new InferenceException(this, "Failed to materialize child %s template %s", qname, template));
473 // Careful here: first add the substatement and only complete it afterwards
474 final var toAdd = verifyStatement(ret);
475 addMaterialized(template, toAdd);
476 ensureCompletedExecution(toAdd);
478 LOG.debug("Child {} materialized", qname);
482 // Instantiate this statement's effective substatements. Note this method has side-effects in namespaces and overall
483 // BuildGlobalContext, hence it must be called at most once.
484 private List<ReactorStmtCtx<?, ?, ?>> ensureEffectiveSubstatements() {
485 accessSubstatements();
486 return substatements instanceof List ? castEffective(substatements)
487 // We have either not started or have only partially-materialized statements, ensure full materialization
488 : initializeSubstatements();
492 Iterator<ReactorStmtCtx<?, ?, ?>> effectiveChildrenToComplete() {
493 // When we have not initialized, there are no statements to catch up: we will catch up when we are copying
494 // from prototype (which is already at ModelProcessingPhase.EFFECTIVE_MODEL).
495 if (substatements == null) {
496 return Collections.emptyIterator();
498 accessSubstatements();
499 if (substatements instanceof HashMap) {
500 return castMaterialized(substatements).values().iterator();
502 return castEffective(substatements).iterator();
507 Stream<? extends @NonNull ReactorStmtCtx<?, ?, ?>> streamDeclared() {
508 return Stream.empty();
512 Stream<? extends @NonNull ReactorStmtCtx<?, ?, ?>> streamEffective() {
513 return ensureEffectiveSubstatements().stream().filter(StmtContext::isSupportedToBuildEffective);
516 private void accessSubstatements() {
517 if (substatements instanceof String) {
518 throw new VerifyException("Access to " + substatements + " substatements of " + this);
523 void markNoParentRef() {
524 final Object local = substatements;
526 markNoParentRef(castEffective(local));
531 int sweepSubstatements() {
532 final Object local = substatements;
533 substatements = SWEPT_SUBSTATEMENTS;
535 if (local instanceof List) {
536 final List<ReactorStmtCtx<?, ?, ?>> list = castEffective(local);
538 count = countUnswept(list);
543 private List<ReactorStmtCtx<?, ?, ?>> initializeSubstatements() {
544 final var declared = prototype.mutableDeclaredSubstatements();
545 final var effective = prototype.mutableEffectiveSubstatements();
547 // We are about to instantiate some substatements. The simple act of materializing them may end up triggering
548 // namespace lookups, which in turn can materialize copies by themselves, running ahead of our materialization.
549 // We therefore need a meeting place for, which are the partially-materialized substatements. If we do not have
550 // them yet, instantiate them and we need to populate them as well.
551 final int expectedSize = declared.size() + effective.size();
552 var materializedSchemaTree = castMaterialized(substatements);
553 if (materializedSchemaTree == null) {
554 substatements = materializedSchemaTree = Maps.newHashMapWithExpectedSize(expectedSize);
557 final var buffer = new ArrayList<ReactorStmtCtx<?, ?, ?>>(expectedSize);
558 for (var stmtContext : declared) {
559 if (stmtContext.isSupportedByFeatures()) {
560 copySubstatement(stmtContext, buffer, materializedSchemaTree);
563 for (var stmtContext : effective) {
564 copySubstatement(stmtContext, buffer, materializedSchemaTree);
567 final var ret = beforeAddEffectiveStatementUnsafe(ImmutableList.of(), buffer.size());
577 // Statement copy mess starts here. As it turns out, it's not that much of a mess, but it does make your head spin
578 // sometimes. Tread softly because you tread on my dreams.
581 private ImmutableList<ReactorStmtCtx<?, ?, ?>> adoptSubstatements(final List<EffectiveCopy> list) {
583 .map(copy -> copy.toChildContext(this))
584 .collect(ImmutableList.toImmutableList());
587 private List<EffectiveCopy> effectiveCopy(final Stream<? extends ReactorStmtCtx<?, ?, ?>> stream) {
589 .map(this::effectiveCopy)
590 .filter(Objects::nonNull)
591 .collect(Collectors.toUnmodifiableList());
595 * Create an effective copy of a prototype's substatement as a child of this statement. This is a bit tricky, as
596 * we are called from {@link #tryToReusePrototype(StatementFactory)} and we are creating copies of prototype
597 * statements -- which triggers {@link StatementSupport#onStatementAdded(Mutable)}, which in turn can loop around
598 * to {@link #requestSchemaTreeChild(QName)} -- which creates the statement and hence we can end up performing two
601 * @param template Prototype substatement
602 * @return An {@link EffectiveCopy}, or {@code null} if not applicable
604 private @Nullable EffectiveCopy effectiveCopy(final ReactorStmtCtx<?, ?, ?> template) {
605 if (substatements instanceof HashMap) {
606 // we have partial materialization by requestSchemaTreeChild() after we started tryToReusePrototype(), check
607 // if the statement has already been copied -- we need to pick it up in that case.
608 final var copy = castMaterialized(substatements).get(template);
610 return new EffectiveCopy(template, copy);
614 final var copy = template.asEffectiveChildOf(this, childCopyType(), targetModule);
615 return copy == null ? null : new EffectiveCopy(template, copy);
618 private void copySubstatement(final Mutable<?, ?, ?> substatement, final Collection<ReactorStmtCtx<?, ?, ?>> buffer,
619 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree) {
620 // Consult materialized substatements. We are in a copy operation and will end up throwing materialized
621 // statements away -- hence we do not perform Map.remove() to save ourselves a mutation operation.
623 // We could also perform a Map.containsKey() and perform a bulk add, but that would mean the statement order
624 // against parent would change -- and we certainly do not want that to happen.
625 final var materialized = findMaterialized(materializedSchemaTree, substatement);
626 if (materialized == null) {
627 copySubstatement(substatement).ifPresent(copy -> {
628 // Careful here: first add the substatement and only complete it afterwards
629 final var cast = verifyStatement(copy);
630 materializedSchemaTree.put(substatement, cast);
631 ensureCompletedExecution(cast);
635 buffer.add(materialized);
639 private <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>> Optional<Mutable<X, Y, Z>>
640 copySubstatement(final StmtContext<X, Y, Z> substatement) {
641 return substatement.copyAsChildOf(this, childCopyType(), targetModule);
644 private void addMaterialized(final StmtContext<?, ?, ?> template, final ReactorStmtCtx<?, ?, ?> copy) {
645 final HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree;
646 if (substatements == null) {
647 // Lazy initialization of backing map. We do not expect this to be used often or multiple times -- each hit
648 // here means an inference along schema tree, such as deviate/augment. HashMap requires power-of-two and
649 // defaults to 0.75 load factor -- we therefore size it to 4, i.e. next two inserts will not cause a
650 // resizing operation.
651 materializedSchemaTree = new HashMap<>(4);
652 substatements = materializedSchemaTree;
655 verify(substatements instanceof HashMap, "Unexpected substatements %s", substatements);
656 materializedSchemaTree = castMaterialized(substatements);
659 final var existing = materializedSchemaTree.put(template, copy);
660 if (existing != null) {
661 throw new VerifyException(
662 "Unexpected duplicate request for " + copy.argument() + " previous result was " + existing);
666 private static @Nullable ReactorStmtCtx<?, ?, ?> findMaterialized(
667 final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree,
668 final StmtContext<?, ?, ?> template) {
669 return materializedSchemaTree == null ? null : materializedSchemaTree.get(template);
672 @SuppressWarnings("unchecked")
673 private static List<ReactorStmtCtx<?, ?, ?>> castEffective(final Object substatements) {
674 return (List<ReactorStmtCtx<?, ?, ?>>) substatements;
677 @SuppressWarnings("unchecked")
678 private static HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> castMaterialized(final Object substatements) {
679 return (HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>>) substatements;
682 // Statement copy mess ends here
685 * KEEP THINGS ORGANIZED!
687 * below methods exist in the same form in SubstatementContext. If any adjustment is made here, make sure it is
688 * properly updated there.
691 public A argument() {
696 public StatementContextBase<?, ?, ?> getParentContext() {
701 public StatementContextBase<?, ?, ?> getParentStorage() {
706 public RootStatementContext<?, ?, ?> getRoot() {
707 return parent.getRoot();
711 public EffectiveConfig effectiveConfig() {
712 return effectiveConfig(parent);
716 protected boolean isIgnoringIfFeatures() {
717 return isIgnoringIfFeatures(parent);
721 protected boolean isIgnoringConfig() {
722 return isIgnoringConfig(parent);
726 public boolean isSupportedToBuildEffective() {
727 // Our prototype may have fizzled, for example due to it being a implicit statement guarded by if-feature which
728 // evaluates to false. If that happens, this statement also needs to report unsupported -- and we want to cache
729 // that information for future reuse.
730 boolean ret = super.isSupportedToBuildEffective();
731 if (ret && !prototype.isSupportedToBuildEffective()) {
739 boolean computeSupportedByFeatures() {
740 return prototype.isSupportedByFeatures();
744 protected boolean isParentSupportedByFeatures() {
745 return parent.isSupportedByFeatures();