1 files changed, 84 insertions, 0 deletions
diff --git a/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/MethodAccessNode.java b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/MethodAccessNode.java
new file mode 100644
index 0000000000..75a8d681d3
--- /dev/null
+++ b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/MethodAccessNode.java
@@ -0,0 +1,84 @@
+package org.checkerframework.dataflow.cfg.node;
+
+import java.util.Collection;
+import java.util.Collections;
+
+import javax.lang.model.element.ExecutableElement;
+
+import org.checkerframework.dataflow.util.HashCodeUtils;
+
+import org.checkerframework.javacutil.InternalUtils;
+import org.checkerframework.javacutil.TreeUtils;
+
+import com.sun.source.tree.ExpressionTree;
+import com.sun.source.tree.Tree;
+
+/**
+ * A node for a method access, including a method accesses:
+ *
+ * <pre>
+ *   <em>expression</em> . <em>method</em> ()
+ * </pre>
+ *
+ * @author Stefan Heule
+ *
+ */
+public class MethodAccessNode extends Node {
+
+    protected ExpressionTree tree;
+    protected ExecutableElement method;
+    protected Node receiver;
+
+    // TODO: add method to get modifiers (static, access level, ..)
+
+    public MethodAccessNode(ExpressionTree tree, Node receiver) {
+        super(InternalUtils.typeOf(tree));
+        assert TreeUtils.isMethodAccess(tree);
+        this.tree = tree;
+        this.method = (ExecutableElement) TreeUtils.elementFromUse(tree);
+        this.receiver = receiver;
+    }
+
+    public ExecutableElement getMethod() {
+        return method;
+    }
+
+    public Node getReceiver() {
+        return receiver;
+    }
+
+    @Override
+    public Tree getTree() {
+        return tree;
+    }
+
+    @Override
+    public <R, P> R accept(NodeVisitor<R, P> visitor, P p) {
+        return visitor.visitMethodAccess(this, p);
+    }
+
+    @Override
+    public String toString() {
+        return getReceiver() + "." + method.getSimpleName();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null || !(obj instanceof MethodAccessNode)) {
+            return false;
+        }
+        MethodAccessNode other = (MethodAccessNode) obj;
+        return getReceiver().equals(other.getReceiver())
+                && getMethod().equals(other.getMethod());
+    }
+
+    @Override
+    public int hashCode() {
+        return HashCodeUtils.hash(getReceiver(), getMethod());
+    }
+
+    @Override
+    public Collection<Node> getOperands() {
+        return Collections.singletonList(receiver);
+    }
+}