1 files changed, 52 insertions, 0 deletions
diff --git a/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/BinaryOperationNode.java b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/BinaryOperationNode.java
new file mode 100644
index 0000000000..424747b4ac
--- /dev/null
+++ b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/BinaryOperationNode.java
@@ -0,0 +1,52 @@
+package org.checkerframework.dataflow.cfg.node;
+
+import com.sun.source.tree.BinaryTree;
+import java.util.Collection;
+import java.util.LinkedList;
+import org.checkerframework.javacutil.InternalUtils;
+
+/**
+ * A node for a binary expression.
+ *
+ * <p>For example:
+ *
+ * <pre>
+ *   <em>lefOperandNode</em> <em>operator</em> <em>rightOperandNode</em>
+ * </pre>
+ *
+ * @author charleszhuochen
+ */
+public abstract class BinaryOperationNode extends Node {
+
+    protected final BinaryTree tree;
+    protected final Node left;
+    protected final Node right;
+
+    public BinaryOperationNode(BinaryTree tree, Node left, Node right) {
+        super(InternalUtils.typeOf(tree));
+        this.tree = tree;
+        this.left = left;
+        this.right = right;
+    }
+
+    public Node getLeftOperand() {
+        return left;
+    }
+
+    public Node getRightOperand() {
+        return right;
+    }
+
+    @Override
+    public BinaryTree getTree() {
+        return tree;
+    }
+
+    @Override
+    public Collection<Node> getOperands() {
+        LinkedList<Node> list = new LinkedList<Node>();
+        list.add(getLeftOperand());
+        list.add(getRightOperand());
+        return list;
+    }
+}