| package org.checkerframework.dataflow.cfg.node; |
| |
| import com.sun.source.tree.ThrowTree; |
| import com.sun.source.tree.Tree; |
| import java.util.Collection; |
| import java.util.Collections; |
| import javax.lang.model.type.TypeKind; |
| import javax.lang.model.util.Types; |
| import org.checkerframework.dataflow.util.HashCodeUtils; |
| |
| /** |
| * A node for exception throws: |
| * |
| * <pre> |
| * <em>throw</em> expr |
| * </pre> |
| * |
| * @author Stefan Heule |
| * @author Charlie Garrett |
| */ |
| public class ThrowNode extends Node { |
| |
| protected ThrowTree tree; |
| protected Node expression; |
| |
| public ThrowNode(ThrowTree tree, Node expression, Types types) { |
| super(types.getNoType(TypeKind.NONE)); |
| this.tree = tree; |
| this.expression = expression; |
| } |
| |
| public Node getExpression() { |
| return expression; |
| } |
| |
| @Override |
| public Tree getTree() { |
| return tree; |
| } |
| |
| @Override |
| public <R, P> R accept(NodeVisitor<R, P> visitor, P p) { |
| return visitor.visitThrow(this, p); |
| } |
| |
| @Override |
| public String toString() { |
| return "throw " + expression; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null || !(obj instanceof ThrowNode)) { |
| return false; |
| } |
| ThrowNode other = (ThrowNode) obj; |
| return getExpression().equals(other.getExpression()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return HashCodeUtils.hash(expression); |
| } |
| |
| @Override |
| public Collection<Node> getOperands() { |
| return Collections.singletonList(expression); |
| } |
| } |