--- /dev/null
+/*
+ * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.yangtools.yang.parser.stmt.reactor;
+
+import static java.util.Objects.requireNonNull;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.yangtools.yang.common.QNameModule;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
+import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
+import org.opendaylight.yangtools.yang.parser.spi.meta.CopyHistory;
+import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
+import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ParserNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StatementNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
+import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
+
+/**
+ * A replica of a different statement. It does not allow modification, but produces an effective statement from a
+ * designated source.
+ */
+final class ReplicaStatementContext<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
+ extends ReactorStmtCtx<A, D, E> {
+ private final StatementContextBase<?, ?, ?> parent;
+ private final ReactorStmtCtx<A, D, E> source;
+
+ ReplicaStatementContext(final StatementContextBase<?, ?, ?> parent, final ReactorStmtCtx<A, D, E> source) {
+ super(source, null);
+ this.parent = requireNonNull(parent);
+ this.source = requireNonNull(source);
+ if (source.isSupportedToBuildEffective()) {
+ source.incRef();
+ }
+ }
+
+ @Override
+ E createEffective() {
+ return source.buildEffective();
+ }
+
+ @Override
+ ReactorStmtCtx<A, D, E> unmodifiedEffectiveSource() {
+ return source.unmodifiedEffectiveSource();
+ }
+
+ @Override
+ public EffectiveConfig effectiveConfig() {
+ return source.effectiveConfig();
+ }
+
+ @Override
+ public D declared() {
+ return source.declared();
+ }
+
+ @Override
+ public A argument() {
+ return source.argument();
+ }
+
+ @Override
+ public StatementSourceReference sourceReference() {
+ return source.sourceReference();
+ }
+
+ @Override
+ public String rawArgument() {
+ return source.rawArgument();
+ }
+
+ @Override
+ public Optional<StmtContext<A, D, E>> getOriginalCtx() {
+ return source.getOriginalCtx();
+ }
+
+ @Override
+ public Collection<? extends StatementContextBase<?, ?, ?>> mutableDeclaredSubstatements() {
+ return source.mutableDeclaredSubstatements();
+ }
+
+ @Override
+ public Collection<? extends Mutable<?, ?, ?>> mutableEffectiveSubstatements() {
+ return source.mutableEffectiveSubstatements();
+ }
+
+ @Override
+ byte executionOrder() {
+ return source.executionOrder();
+ }
+
+ @Override
+ public CopyHistory history() {
+ return source.history();
+ }
+
+ @Override
+ public Collection<? extends StmtContext<?, ?, ?>> getEffectOfStatement() {
+ return List.of();
+ }
+
+ @Override
+ ReplicaStatementContext<A, D, E> replicaAsChildOf(final StatementContextBase<?, ?, ?> newParent) {
+ return source.replicaAsChildOf(newParent);
+ }
+
+ @Override
+ public Optional<? extends Mutable<?, ?, ?>> copyAsChildOf(final Mutable<?, ?, ?> newParent, final CopyType type,
+ final QNameModule targetModule) {
+ return source.copyAsChildOf(newParent, type, targetModule);
+ }
+
+ @Override
+ ReactorStmtCtx<?, ?, ?> asEffectiveChildOf(final StatementContextBase<?, ?, ?> newParent, final CopyType type,
+ final QNameModule targetModule) {
+ final ReactorStmtCtx<?, ?, ?> ret = source.asEffectiveChildOf(newParent, type, targetModule);
+ return ret == null ? null : this;
+ }
+
+ @Override
+ StatementDefinitionContext<A, D, E> definition() {
+ return source.definition();
+ }
+
+ @Override
+ void markNoParentRef() {
+ // No-op
+ }
+
+ @Override
+ int sweepSubstatements() {
+ if (haveSourceReference()) {
+ source.decRef();
+ }
+ return 0;
+ }
+
+ @Override
+ public <K, V, T extends K, U extends V, N extends ParserNamespace<K, V>> void addToNs(final Class<@NonNull N> type,
+ final T key, final U value) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public Optional<StmtContext<A, D, E>> getPreviousCopyCtx() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public <K, KT extends K, N extends StatementNamespace<K, ?, ?>> void addContext(final Class<@NonNull N> namespace,
+ final KT key, final StmtContext<?, ?, ?> stmt) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public void addAsEffectOfStatement(final Collection<? extends StmtContext<?, ?, ?>> ctxs) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public Mutable<?, ?, ?> childCopyOf(final StmtContext<?, ?, ?> stmt, final CopyType type,
+ final QNameModule targetModule) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ boolean doTryToCompletePhase(final byte executionOrder) {
+ throw new UnsupportedOperationException();
+ }
+
+ /*
+ * KEEP THINGS ORGANIZED!
+ *
+ * below methods exist in the same form in InferredStatementContext/SubstatementContext. If any adjustment is made
+ * here, make sure it is properly updated there.
+ */
+ @Override
+ @Deprecated
+ public SchemaPath schemaPath() {
+ return substatementGetSchemaPath();
+ }
+
+ @Override
+ public StatementContextBase<?, ?, ?> getParentContext() {
+ return parent;
+ }
+
+ @Override
+ public StorageNodeType getStorageNodeType() {
+ return StorageNodeType.STATEMENT_LOCAL;
+ }
+
+ @Override
+ public StatementContextBase<?, ?, ?> getParentNamespaceStorage() {
+ return parent;
+ }
+
+ @Override
+ public RootStatementContext<?, ?, ?> getRoot() {
+ return parent.getRoot();
+ }
+
+ @Override
+ protected boolean isIgnoringIfFeatures() {
+ return isIgnoringIfFeatures(parent);
+ }
+
+ @Override
+ protected boolean isIgnoringConfig() {
+ return isIgnoringConfig(parent);
+ }
+
+ @Override
+ protected boolean isParentSupportedByFeatures() {
+ return parent.isSupportedByFeatures();
+ }
+}