1 files changed, 94 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/util/EclipseCollectionsSetMemory.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/util/EclipseCollectionsSetMemory.java
new file mode 100644
index 00000000..92f65246
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/util/EclipseCollectionsSetMemory.java
@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2018, Gabor Bergmann, IncQueryLabs Ltd.
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-v20.html.
+ * 
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package tools.refinery.viatra.runtime.matchers.util;
+
+import java.util.Set;
+
+import org.eclipse.collections.impl.set.mutable.UnifiedSet;
+
+/**
+ * @author Gabor Bergmann
+ * @since 2.0
+ */
+public class EclipseCollectionsSetMemory<Value> extends UnifiedSet<Value> implements ISetMemory<Value> {
+    @Override
+    public int getCount(Value value) {
+        return super.contains(value) ? 1 : 0;
+    }
+    @Override
+    public int getCountUnsafe(Object value) {
+        return super.contains(value) ? 1 : 0;
+    }
+    @Override
+    public boolean containsNonZero(Value value) {
+        return super.contains(value);
+    }
+    
+    @Override
+    public boolean containsNonZeroUnsafe(Object value) {
+        return super.contains(value);
+    }
+
+    @Override
+    public boolean addOne(Value value) {
+        return super.add(value);
+    }
+
+    @Override
+    public boolean addSigned(Value value, int count) {
+        if (count == 1) return addOne(value);
+        else if (count == -1) return removeOne(value); 
+        else throw new IllegalStateException();
+    }
+    
+    @Override
+    public boolean removeOne(Value value) {
+        // Kept for binary compatibility
+        return ISetMemory.super.removeOne(value);
+    }
+    
+    @Override
+    public boolean removeOneOrNop(Value value) {
+        return super.remove(value);
+    }
+
+    @Override
+    public void clearAllOf(Value value) {
+        super.remove(value);
+    }
+
+    @Override
+    public Set<Value> distinctValues() {
+        return this;
+    }
+    
+    @Override
+    public Value theContainedVersionOf(Value value) {
+        return super.get(value);
+    }
+    
+    @Override
+    @SuppressWarnings("unchecked")
+    public Value theContainedVersionOfUnsafe(Object value) {
+        if (super.contains(value)) 
+            return super.get((Value)value);
+        else return null;
+    }
+    
+    @Override
+    public int hashCode() {
+        return IMemoryView.hashCode(this);
+    }
+    @Override
+    public boolean equals(Object obj) {
+        return IMemoryView.equals(this, obj);
+    }
+
+
+}