+++ /dev/null
-/*
- * Copyright (c) 2017 Pantheon Technologies, 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.rfc7950.stmt.meta;
-
-import static com.google.common.base.Preconditions.checkState;
-
-import com.google.common.collect.ImmutableList;
-import java.util.Collection;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.model.api.Status;
-import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
-import org.opendaylight.yangtools.yang.model.api.meta.DeclarationReference;
-import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
-import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.DefaultEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.TypedefStatement;
-import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatementDecorators;
-import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
-import org.opendaylight.yangtools.yang.model.ri.stmt.EffectiveStatements;
-import org.opendaylight.yangtools.yang.model.spi.meta.EffectiveStatementMixins.EffectiveStatementWithFlags.FlagsBuilder;
-import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
-import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStmtUtils;
-import org.opendaylight.yangtools.yang.parser.spi.TypeNamespace;
-import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractQNameStatementSupport;
-import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
-import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
-import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
-
-public final class TypedefStatementSupport extends
- AbstractQNameStatementSupport<TypedefStatement, TypedefEffectiveStatement> {
- private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(
- YangStmtMapping.TYPEDEF)
- .addOptional(YangStmtMapping.DEFAULT)
- .addOptional(YangStmtMapping.DESCRIPTION)
- .addOptional(YangStmtMapping.REFERENCE)
- .addOptional(YangStmtMapping.STATUS)
- .addMandatory(YangStmtMapping.TYPE)
- .addOptional(YangStmtMapping.UNITS)
- .build();
-
- public TypedefStatementSupport(final YangParserConfiguration config) {
- super(YangStmtMapping.TYPEDEF, StatementPolicy.exactReplica(), config, SUBSTATEMENT_VALIDATOR);
- }
-
- @Override
- public QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
- return StmtContextUtils.parseIdentifier(ctx, value);
- }
-
- @Override
- public void onFullDefinitionDeclared(final Mutable<QName, TypedefStatement, TypedefEffectiveStatement> stmt) {
- super.onFullDefinitionDeclared(stmt);
-
- final Mutable<?, ?, ?> parent = stmt.getParentContext();
- if (parent != null) {
- // Shadowing check: make sure we do not trample on pre-existing definitions. This catches sibling
- // declarations and parent declarations which have already been declared.
- checkConflict(parent, stmt);
- parent.addContext(TypeNamespace.class, stmt.getArgument(), stmt);
-
- final StmtContext<?, ?, ?> grandParent = parent.getParentContext();
- if (grandParent != null) {
- // Shadowing check: make sure grandparent does not see a conflicting definition. This is required to
- // ensure that a typedef in child scope does not shadow a typedef in parent scope which occurs later in
- // the text. For that check we need the full declaration of our model.
-
- final ModelActionBuilder action = stmt.newInferenceAction(ModelProcessingPhase.FULL_DECLARATION);
- action.requiresCtx(grandParent.getRoot(), ModelProcessingPhase.FULL_DECLARATION);
- action.apply(new InferenceAction() {
- @Override
- public void apply(final InferenceContext ctx) {
- checkConflict(grandParent, stmt);
- }
-
- @Override
- public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
- // No-op
- }
- });
- }
- }
- }
-
- @Override
- protected TypedefStatement createDeclared(final StmtContext<QName, TypedefStatement, ?> ctx,
- final ImmutableList<? extends DeclaredStatement<?>> substatements) {
- return DeclaredStatements.createTypedef(ctx.getArgument(), substatements);
- }
-
- @Override
- protected TypedefStatement attachDeclarationReference(final TypedefStatement stmt,
- final DeclarationReference reference) {
- return DeclaredStatementDecorators.decorateTypedef(stmt, reference);
- }
-
- @Override
- protected TypedefEffectiveStatement createEffective(final Current<QName, TypedefStatement> stmt,
- final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
- final TypedefStatement declared = stmt.declared();
- checkState(!substatements.isEmpty(), "Refusing to create empty typedef for %s", stmt.declared());
-
- final TypeEffectiveStatement<?> typeEffectiveStmt = findFirstStatement(substatements,
- TypeEffectiveStatement.class);
- final String dflt = findFirstArgument(substatements, DefaultEffectiveStatement.class, null);
- SourceException.throwIf(
- EffectiveStmtUtils.hasDefaultValueMarkedWithIfFeature(stmt.yangVersion(), typeEffectiveStmt, dflt), stmt,
- "Typedef '%s' has default value '%s' marked with an if-feature statement.", stmt.argument(), dflt);
-
- return EffectiveStatements.createTypedef(declared, stmt.effectivePath(), computeFlags(substatements),
- substatements);
- }
-
- private static void checkConflict(final StmtContext<?, ?, ?> parent, final StmtContext<QName, ?, ?> stmt) {
- final QName arg = stmt.getArgument();
- final StmtContext<?, ?, ?> existing = parent.getFromNamespace(TypeNamespace.class, arg);
- // RFC7950 sections 5.5 and 6.2.1: identifiers must not be shadowed
- SourceException.throwIf(existing != null, stmt, "Duplicate name for typedef %s", arg);
- }
-
- private static int computeFlags(final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
- return new FlagsBuilder()
- .setStatus(findFirstArgument(substatements, StatusEffectiveStatement.class, Status.CURRENT))
- .toFlags();
- }
-}
Code Review / yangtools.git / blobdiff