1 files changed, 0 insertions, 56 deletions
diff --git a/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/util/NodeUtils.java b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/util/NodeUtils.java
deleted file mode 100644
index cf7a090024..0000000000
--- a/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/util/NodeUtils.java
+++ /dev/null
@@ -1,56 +0,0 @@
-package org.checkerframework.dataflow.util;
-
-import com.sun.source.tree.Tree;
-import com.sun.tools.javac.code.Type;
-import com.sun.tools.javac.tree.JCTree;
-import javax.lang.model.type.TypeKind;
-import org.checkerframework.dataflow.cfg.node.ConditionalOrNode;
-import org.checkerframework.dataflow.cfg.node.FieldAccessNode;
-import org.checkerframework.dataflow.cfg.node.Node;
-import org.checkerframework.javacutil.TypesUtils;
-
-/**
- * A utility class to operate on a given {@link Node}.
- *
- * @author Stefan Heule
- */
-public class NodeUtils {
-
-    /**
-     * @return true iff {@code node} corresponds to a boolean typed expression (either the primitive
-     *     type {@code boolean}, or class type {@link java.lang.Boolean})
-     */
-    public static boolean isBooleanTypeNode(Node node) {
-
-        if (node instanceof ConditionalOrNode) {
-            return true;
-        }
-
-        // not all nodes have an associated tree, but those are all not of a
-        // boolean type.
-        Tree tree = node.getTree();
-        if (tree == null) {
-            return false;
-        }
-
-        Type type = ((JCTree) tree).type;
-        if (TypesUtils.isBooleanType(type)) {
-            return true;
-        }
-
-        return false;
-    }
-
-    /**
-     * @return true iff {@code node} is a {@link FieldAccessNode} that is an access to an array's
-     *     length
-     */
-    public static boolean isArrayLengthFieldAccess(Node node) {
-        if (!(node instanceof FieldAccessNode)) {
-            return false;
-        }
-        FieldAccessNode fieldAccess = (FieldAccessNode) node;
-        return fieldAccess.getFieldName().equals("length")
-                && fieldAccess.getReceiver().getType().getKind() == TypeKind.ARRAY;
-    }
-}