Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / elaboration / query / QAlternative.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/QAlternative.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/QAlternative.java
new file mode 100644 (file)
index 0000000..46db4fa
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/QAlternative.java
@@ -0,0 +1,37 @@
+package org.simantics.scl.compiler.elaboration.query;
+
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
+import org.simantics.scl.compiler.elaboration.expressions.QueryTransformer;
+import org.simantics.scl.compiler.elaboration.query.compilation.ConstraintCollectionContext;
+
+
+public class QAlternative extends QAbstractCombiner {
+
+    public QAlternative(Query ... queries) {
+        super(queries);
+    }
+
+    @Override
+    public void collectConstraints(final ConstraintCollectionContext context) {
+        throw new UnsupportedOperationException();
+    }
+    
+    @Override
+    public Query replace(ReplaceContext context) {
+        Query[] newQueries = new Query[queries.length];
+        for(int i=0;i<queries.length;++i)
+            newQueries[i] = queries[i].replace(context);
+        return new QAlternative(newQueries);
+    }
+ 
+    @Override
+    public void accept(QueryVisitor visitor) {
+        visitor.visit(this);
+    }
+
+    @Override
+    public Query accept(QueryTransformer transformer) {
+        return transformer.transform(this);
+    }
+
+}