Move feature/grouping/length effective statements

[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 117fcf30dfd521be07afc0baff9326bef4d98a0a..f1cdf9079fc1922f243234f1a07ee8ad22e3a739 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
@@ -150,8 +150,11 @@ public final class UsesStatementSupport
     @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();
+        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();