public static class WriteSuperFrameVariableConditionalNode
      extends WriteSuperFrameVariableNodeHelper {

    @Child private WriteSuperFrameVariableNode writeNode;
    @Child private WriteSuperFrameVariableNodeHelper nextNode;
    @Child private RNode rhs;

    private final ValueProfile enclosingFrameProfile = ValueProfile.createClassProfile();
    private final ConditionProfile hasValueProfile = ConditionProfile.createBinaryProfile();
    private final ConditionProfile nullSuperFrameProfile = ConditionProfile.createBinaryProfile();

    WriteSuperFrameVariableConditionalNode(
        WriteSuperFrameVariableNode writeNode,
        WriteSuperFrameVariableNodeHelper nextNode,
        RNode rhs) {
      this.writeNode = writeNode;
      this.nextNode = nextNode;
      this.rhs = rhs;
    }

    @Override
    public Object getName() {
      return writeNode.getName();
    }

    @Override
    public RNode getRhs() {
      return rhs;
    }

    @Override
    public void execute(VirtualFrame frame, Object value, MaterializedFrame enclosingFrame) {
      MaterializedFrame profiledEnclosingFrame = enclosingFrameProfile.profile(enclosingFrame);
      if (hasValueProfile.profile(writeNode.getFrameSlotNode().hasValue(profiledEnclosingFrame))) {
        writeNode.execute(frame, value, profiledEnclosingFrame);
      } else {
        MaterializedFrame superFrame = RArguments.getEnclosingFrame(profiledEnclosingFrame);
        if (nullSuperFrameProfile.profile(superFrame == null)) {
          // Might be the case if "{ x <<- 42 }": This is in globalEnv!
          superFrame = REnvironment.globalEnv().getFrame();
        }
        nextNode.execute(frame, value, superFrame);
      }
    }

    @Override
    public void execute(VirtualFrame frame, Object value) {
      assert RArguments.getEnclosingFrame(frame) != null;
      execute(frame, value, RArguments.getEnclosingFrame(frame));
    }
  }
Exemple #2
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@RBuiltin(
    name = "dimnames",
    kind = PRIMITIVE,
    parameterNames = {"x"},
    dispatch = INTERNAL_GENERIC)
public abstract class DimNames extends RBuiltinNode {

  private final RAttributeProfiles attrProfiles = RAttributeProfiles.create();
  private final ConditionProfile nullProfile = ConditionProfile.createBinaryProfile();
  private final BranchProfile dataframeProfile = BranchProfile.create();
  private final BranchProfile factorProfile = BranchProfile.create();
  private final BranchProfile otherProfile = BranchProfile.create();

  @Specialization
  protected RNull getDimNames(@SuppressWarnings("unused") RNull operand) {
    controlVisibility();
    return RNull.instance;
  }

  @Specialization
  protected Object getDimNames(RAbstractContainer container) {
    controlVisibility();
    RList names;
    if (container instanceof RDataFrame) {
      dataframeProfile.enter();
      names = ((RDataFrame) container).getVector().getDimNames();
    } else if (container instanceof RFactor) {
      factorProfile.enter();
      names = ((RFactor) container).getVector().getDimNames();
    } else {
      otherProfile.enter();
      names = container.getDimNames(attrProfiles);
    }
    return nullProfile.profile(names == null) ? RNull.instance : names;
  }
}