Retain DeclarationReference in DeclaredStatements

[yangtools.git] / yang / yang-parser-rfc7950 / src / main / java / org / opendaylight / yangtools / yang / parser / rfc7950 / stmt / uses / UsesStatementSupport.java

diff --git a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
index 902910298fd6b3940247bd066186cdff3dc0a4f2..e094d9d3d8e06007cb2f0e1fe75828912e98c762 100644 (file)
--- a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
+++ b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
@@ -26,6 +26,7 @@ import org.opendaylight.yangtools.yang.common.YangVersion;
 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
 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.meta.StatementDefinition;
@@ -36,12 +37,16 @@ import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Desce
 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.UsesEffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.UsesStatement;
+import org.opendaylight.yangtools.yang.model.parser.api.YangParserConfiguration;
+import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatementDecorators;
+import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
+import org.opendaylight.yangtools.yang.model.spi.meta.EffectiveStatementMixins;
 import org.opendaylight.yangtools.yang.parser.rfc7950.reactor.YangValidationBundles;
-import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseQNameStatementSupport;
 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.refine.RefineEffectiveStatementImpl;
 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.refine.RefineTargetNamespace;
 import org.opendaylight.yangtools.yang.parser.spi.GroupingNamespace;
 import org.opendaylight.yangtools.yang.parser.spi.SchemaTreeNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractQNameStatementSupport;
 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
@@ -63,7 +68,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public final class UsesStatementSupport
-        extends BaseQNameStatementSupport<UsesStatement, UsesEffectiveStatement> {
+        extends AbstractQNameStatementSupport<UsesStatement, UsesEffectiveStatement> {
     private static final Logger LOG = LoggerFactory.getLogger(UsesStatementSupport.class);
     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
         .USES)
@@ -75,14 +80,9 @@ public final class UsesStatementSupport
         .addOptional(YangStmtMapping.STATUS)
         .addOptional(YangStmtMapping.WHEN)
         .build();
-    private static final UsesStatementSupport INSTANCE = new UsesStatementSupport();
 
-    private UsesStatementSupport() {
-        super(YangStmtMapping.USES, CopyPolicy.DECLARED_COPY);
-    }
-
-    public static UsesStatementSupport getInstance() {
-        return INSTANCE;
+    public UsesStatementSupport(final YangParserConfiguration config) {
+        super(YangStmtMapping.USES, StatementPolicy.exactReplica(), config);
     }
 
     @Override
@@ -137,20 +137,23 @@ public final class UsesStatementSupport
     @Override
     protected UsesStatement createDeclared(final StmtContext<QName, UsesStatement, ?> ctx,
             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
-        return new RegularUsesStatement(ctx.getRawArgument(), ctx.getArgument(), substatements);
+        return DeclaredStatements.createUses(ctx.getRawArgument(), ctx.getArgument(), substatements);
     }
 
     @Override
-    protected UsesStatement createEmptyDeclared(final StmtContext<QName, UsesStatement, ?> ctx) {
-        return new EmptyUsesStatement(ctx.getRawArgument(), ctx.getArgument());
+    protected UsesStatement attachDeclarationReference(final UsesStatement stmt, final DeclarationReference reference) {
+        return DeclaredStatementDecorators.decorateUses(stmt, reference);
     }
 
     @Override
     protected UsesEffectiveStatement createEffective(final Current<QName, UsesStatement> stmt,
             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
-        final GroupingDefinition sourceGrouping = (GroupingDefinition)
+        final EffectiveStatement<?, ?> source =
             verifyNotNull(stmt.getFromNamespace(SourceGroupingNamespace.class, Empty.getInstance())).buildEffective();
-        final int flags = historyAndStatusFlags(stmt.history(), substatements);
+        verify(source instanceof GroupingDefinition, "Unexpected source %s", source);
+        final GroupingDefinition sourceGrouping = (GroupingDefinition) source;
+
+        final int flags = EffectiveStatementMixins.historyAndStatusFlags(stmt.history(), substatements);
         final QName argument = stmt.getArgument();
         final UsesStatement declared = stmt.declared();
 
@@ -317,7 +320,13 @@ public final class UsesStatementSupport
             addOrReplaceNodes(subStmtCtx, (StatementContextBase<?, ?, ?>) refineTargetNodeCtx);
         }
 
-        subStmtCtx.addToNs(RefineTargetNamespace.class, Empty.getInstance(), refineTargetNodeCtx);
+        // Target is a prerequisite for the 'refine', hence if the target is not supported, the refine is not supported
+        // as well. Otherwise add a pointer to the target into refine's local namespace.
+        if (refineTargetNodeCtx.isSupportedToBuildEffective()) {
+            subStmtCtx.addToNs(RefineTargetNamespace.class, Empty.getInstance(), refineTargetNodeCtx);
+        } else {
+            subStmtCtx.setIsSupportedToBuildEffective(false);
+        }
     }
 
     private static void addOrReplaceNodes(final Mutable<?, ?, ?> subStmtCtx,
@@ -340,14 +349,13 @@ public final class UsesStatementSupport
                 refineSubstatementCtx.getRoot().rawArgument(), refineSubstatementCtx.coerceParentContext().argument(),
                 refineSubstatementCtx.publicDefinition(), refineTargetNodeCtx.publicDefinition());
 
-        if (isAllowedToAddByRefine(refineSubstatementDef)) {
-            refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx);
-        } else {
+        if (!isAllowedToAddByRefine(refineSubstatementDef)) {
             refineTargetNodeCtx.removeStatementFromEffectiveSubstatements(refineSubstatementDef);
-            refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx);
         }
+        refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx.replicaAsChildOf(refineTargetNodeCtx));
     }
 
+    // FIXME: clarify this and inline into single caller
     private static boolean isAllowedToAddByRefine(final StatementDefinition publicDefinition) {
         return YangStmtMapping.MUST.equals(publicDefinition);
     }