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.Preconditions.checkState;
11 import static java.util.Objects.requireNonNull;
13 import java.util.Collection;
14 import java.util.Optional;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
17 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
18 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
19 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyHistory;
20 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
24 import org.opendaylight.yangtools.yang.parser.spi.source.ImplicitSubstatement;
25 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
26 import org.opendaylight.yangtools.yang.parser.spi.source.StatementWriter.ResumedStatement;
29 * Intermediate subclass of StatementContextBase facing the parser stream via implementation of ResumedStatement. This
30 * shields inference-type substatements from these details.
32 * @param <A> Argument type
33 * @param <D> Declared Statement representation
34 * @param <E> Effective Statement representation
36 abstract class AbstractResumedStatement<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
37 extends StatementContextBase<A, D, E> implements ResumedStatement {
38 private final @NonNull StatementSourceReference statementDeclSource;
39 private final String rawArgument;
41 private StatementMap substatements = StatementMap.empty();
44 AbstractResumedStatement(final AbstractResumedStatement<A, D, E> original) {
46 this.statementDeclSource = original.statementDeclSource;
47 this.rawArgument = original.rawArgument;
48 this.substatements = original.substatements;
51 AbstractResumedStatement(final StatementDefinitionContext<A, D, E> def, final StatementSourceReference ref,
52 final String rawArgument) {
54 this.statementDeclSource = requireNonNull(ref);
55 this.rawArgument = def.internArgument(rawArgument);
58 AbstractResumedStatement(final StatementDefinitionContext<A, D, E> def, final StatementSourceReference ref,
59 final String rawArgument, final CopyType copyType) {
60 super(def, CopyHistory.of(copyType, CopyHistory.original()));
61 this.statementDeclSource = requireNonNull(ref);
62 this.rawArgument = rawArgument;
66 public final Optional<StmtContext<?, ?, ?>> getOriginalCtx() {
67 return Optional.empty();
71 public final Optional<? extends StmtContext<?, ?, ?>> getPreviousCopyCtx() {
72 return Optional.empty();
76 public final StatementSourceReference getStatementSourceReference() {
77 return statementDeclSource;
81 public final String rawStatementArgument() {
86 public Collection<? extends StatementContextBase<?, ?, ?>> mutableDeclaredSubstatements() {
87 return substatements.values();
91 public @NonNull StatementDefinition getDefinition() {
92 return getPublicDefinition();
96 public @NonNull StatementSourceReference getSourceReference() {
97 return getStatementSourceReference();
101 public boolean isFullyDefined() {
102 return fullyDefined();
106 * Create a new substatement at the specified offset.
108 * @param offset Substatement offset
109 * @param def definition context
110 * @param ref source reference
111 * @param argument statement argument
112 * @param <X> new substatement argument type
113 * @param <Y> new substatement declared type
114 * @param <Z> new substatement effective type
115 * @return A new substatement
117 @SuppressWarnings("checkstyle:methodTypeParameterName")
118 final <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>>
119 AbstractResumedStatement<X, Y, Z> createSubstatement(final int offset,
120 final StatementDefinitionContext<X, Y, Z> def, final StatementSourceReference ref,
121 final String argument) {
122 final ModelProcessingPhase inProgressPhase = getRoot().getSourceContext().getInProgressPhase();
123 checkState(inProgressPhase != ModelProcessingPhase.EFFECTIVE_MODEL,
124 "Declared statement cannot be added in effective phase at: %s", getStatementSourceReference());
126 final Optional<StatementSupport<?, ?, ?>> implicitParent =
127 definition().getImplicitParentFor(def.getPublicView());
128 if (implicitParent.isPresent()) {
129 return createImplicitParent(offset, implicitParent.get(), ref, argument).createSubstatement(offset, def,
133 final AbstractResumedStatement<X, Y, Z> ret = new SubstatementContext<>(this, def, ref, argument);
134 substatements = substatements.put(offset, ret);
135 def.onStatementAdded(ret);
140 * Lookup substatement by its offset in this statement.
142 * @param offset Substatement offset
143 * @return Substatement, or null if substatement does not exist.
145 final AbstractResumedStatement<?, ?, ?> lookupSubstatement(final int offset) {
146 return substatements.get(offset);
149 final void resizeSubstatements(final int expectedSize) {
150 substatements = substatements.ensureCapacity(expectedSize);
153 final void walkChildren(final ModelProcessingPhase phase) {
154 checkState(isFullyDefined());
155 substatements.values().forEach(stmt -> {
156 stmt.walkChildren(phase);
157 stmt.endDeclared(phase);
161 private AbstractResumedStatement<?, ?, ?> createImplicitParent(final int offset,
162 final StatementSupport<?, ?, ?> implicitParent, final StatementSourceReference ref, final String argument) {
163 final StatementDefinitionContext<?, ?, ?> def = new StatementDefinitionContext<>(implicitParent);
164 return createSubstatement(offset, def, ImplicitSubstatement.of(ref), argument);