| package org.checkerframework.dataflow.cfg.node; |
| |
| import com.sun.source.tree.ExpressionTree; |
| import com.sun.source.tree.Tree; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Objects; |
| import javax.lang.model.element.ExecutableElement; |
| import org.checkerframework.checker.nullness.qual.Nullable; |
| import org.checkerframework.javacutil.TreeUtils; |
| |
| /** |
| * A node for a method access, including a method accesses: |
| * |
| * <pre> |
| * <em>expression</em> . <em>method</em> () |
| * </pre> |
| */ |
| public class MethodAccessNode extends Node { |
| |
| protected final ExpressionTree tree; |
| protected final ExecutableElement method; |
| protected final Node receiver; |
| |
| // TODO: add method to get modifiers (static, access level, ..) |
| |
| public MethodAccessNode(ExpressionTree tree, Node receiver) { |
| super(TreeUtils.typeOf(tree)); |
| assert TreeUtils.isMethodAccess(tree); |
| this.tree = tree; |
| assert TreeUtils.isUseOfElement(tree) : "@AssumeAssertion(nullness): tree kind"; |
| 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(@Nullable Object obj) { |
| if (!(obj instanceof MethodAccessNode)) { |
| return false; |
| } |
| MethodAccessNode other = (MethodAccessNode) obj; |
| return getReceiver().equals(other.getReceiver()) && getMethod().equals(other.getMethod()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(getReceiver(), getMethod()); |
| } |
| |
| @Override |
| public Collection<Node> getOperands() { |
| return Collections.singletonList(receiver); |
| } |
| } |