diff options
Diffstat (limited to 'third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/ConditionalNotNode.java')
-rw-r--r-- | third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/ConditionalNotNode.java | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/ConditionalNotNode.java b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/ConditionalNotNode.java new file mode 100644 index 0000000000..5143c69c50 --- /dev/null +++ b/third_party/checker_framework_dataflow/java/org/checkerframework/dataflow/cfg/node/ConditionalNotNode.java @@ -0,0 +1,73 @@ +package org.checkerframework.dataflow.cfg.node; + +import java.util.Collection; +import java.util.Collections; + +import org.checkerframework.dataflow.util.HashCodeUtils; + +import org.checkerframework.javacutil.InternalUtils; + +import com.sun.source.tree.Tree.Kind; +import com.sun.source.tree.UnaryTree; + +/** + * A node for a conditional not expression: + * + * <pre> + * ! <em>expression</em> + * </pre> + * + * @author Stefan Heule + * @author Charlie Garrett + * + */ +public class ConditionalNotNode extends Node { + + protected UnaryTree tree; + protected Node operand; + + public ConditionalNotNode(UnaryTree tree, Node operand) { + super(InternalUtils.typeOf(tree)); + assert tree.getKind().equals(Kind.LOGICAL_COMPLEMENT); + this.tree = tree; + this.operand = operand; + } + + public Node getOperand() { + return operand; + } + + @Override + public UnaryTree getTree() { + return tree; + } + + @Override + public <R, P> R accept(NodeVisitor<R, P> visitor, P p) { + return visitor.visitConditionalNot(this, p); + } + + @Override + public String toString() { + return "(!" + getOperand() + ")"; + } + + @Override + public boolean equals(Object obj) { + if (obj == null || !(obj instanceof ConditionalNotNode)) { + return false; + } + ConditionalNotNode other = (ConditionalNotNode) obj; + return getOperand().equals(other.getOperand()); + } + + @Override + public int hashCode() { + return HashCodeUtils.hash(getOperand()); + } + + @Override + public Collection<Node> getOperands() { + return Collections.singletonList(getOperand()); + } +} |