Convert pattern statement

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

diff --git a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractDeclaredEffectiveStatement.java b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractDeclaredEffectiveStatement.java
index 8f1a7446d7299fe5822f896e734089a78b809717..d7dd37dbf4af6274a589f6d95664ea5478255695 100644 (file)
--- a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractDeclaredEffectiveStatement.java
+++ b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractDeclaredEffectiveStatement.java
@@ -209,6 +209,43 @@ public abstract class AbstractDeclaredEffectiveStatement<A, D extends DeclaredSt
         }
     }
 
+    /**
+     * A building block on top of {@link Default}, which adds an explicit argument value, which is not related to the
+     * context. This is mostly useful when the effective argument value reflects additional statements and similar.
+     *
+     * @param <A> Argument type ({@link Void} if statement does not have argument.)
+     * @param <D> Class representing declared version of this statement.
+     */
+    public abstract static class DefaultWithArgument<A, D extends DeclaredStatement<A>> extends Default<A, D> {
+        public abstract static class WithSubstatements<A, D extends DeclaredStatement<A>>
+                extends DefaultWithArgument<A, D> {
+            private final @NonNull Object substatements;
+
+            protected WithSubstatements(final D declared, final A argument,
+                    final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
+                super(declared, argument);
+                this.substatements = maskList(substatements);
+            }
+
+            @Override
+            public final ImmutableList<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
+                return unmaskList(substatements);
+            }
+        }
+
+        private final A argument;
+
+        protected DefaultWithArgument(final D declared, final A argument) {
+            super(declared);
+            this.argument = argument;
+        }
+
+        @Override
+        public final A argument() {
+            return argument;
+        }
+    }
+
     /**
      * Stateful version of {@link WithSchemaTree}. Schema tree namespace is eagerly instantiated (and checked).
      *