@Specialization(
      guards = {
        "!copyAllAttributes || target != source",
        "containsMetadata(source, attrSourceProfiles)"
      })
  public RAbstractVector copySameLength(
      RAbstractVector target,
      RAbstractVector source, //
      @Cached("create()") CopyOfRegAttributesNode copyOfReg, //
      @Cached("createDim()") RemoveAttributeNode removeDim, //
      @Cached("createDimNames()") RemoveAttributeNode removeDimNames, //
      @Cached("create()") InitAttributesNode initAttributes, //
      @Cached("createNames()") PutAttributeNode putNames, //
      @Cached("createDim()") PutAttributeNode putDim, //
      @Cached("createBinaryProfile()") ConditionProfile noDimensions, //
      @Cached("createBinaryProfile()") ConditionProfile hasNamesSource, //
      @Cached("createBinaryProfile()") ConditionProfile hasDimNames) {
    RVector result = target.materialize();

    if (copyAllAttributes) {
      copyOfReg.execute(source, result);
    }

    int[] newDimensions = source.getDimensions();
    if (noDimensions.profile(newDimensions == null)) {
      RAttributes attributes = result.getAttributes();
      if (attributes != null) {
        removeDim.execute(attributes);
        removeDimNames.execute(attributes);
        result.setInternalDimNames(null);
      }
      result.setInternalDimensions(null);

      RStringVector vecNames = source.getNames(attrSourceProfiles);
      if (hasNamesSource.profile(vecNames != null)) {
        putNames.execute(initAttributes.execute(result), vecNames);
        result.setInternalNames(vecNames);
        return result;
      }
      return result;
    }

    putDim.execute(
        initAttributes.execute(result),
        RDataFactory.createIntVector(newDimensions, RDataFactory.COMPLETE_VECTOR));
    result.setInternalDimensions(newDimensions);

    RList newDimNames = source.getDimNames(attrSourceProfiles);
    if (hasDimNames.profile(newDimNames != null)) {
      result.getAttributes().put(RRuntime.DIMNAMES_ATTR_KEY, newDimNames);
      newDimNames.elementNamePrefix = RRuntime.DIMNAMES_LIST_ELEMENT_NAME_PREFIX;
      result.setInternalDimNames(newDimNames);
      return result;
    }
    return result;
  }
  @Specialization(guards = {"!copyAllAttributes || target != source", "containsMetadata(source)"})
  protected RAbstractVector copySameLength(
      RAbstractVector target,
      RAbstractVector source, //
      @Cached("create()") CopyOfRegAttributesNode copyOfReg, //
      @Cached("createDim()") RemoveFixedAttributeNode removeDim, //
      @Cached("createDimNames()") RemoveFixedAttributeNode removeDimNames, //
      @Cached("create()") InitAttributesNode initAttributes, //
      @Cached("createNames()") SetFixedAttributeNode putNames, //
      @Cached("createDim()") SetFixedAttributeNode putDim, //
      @Cached("createDimNames()") SetFixedAttributeNode putDimNames, //
      @Cached("createBinaryProfile()") ConditionProfile noDimensions, //
      @Cached("createBinaryProfile()") ConditionProfile hasNamesSource, //
      @Cached("createBinaryProfile()") ConditionProfile hasDimNames,
      @Cached("create()") GetDimAttributeNode getDimsNode) {
    RVector<?> result = target.materialize();

    if (copyAllAttributes) {
      copyOfReg.execute(source, result);
    }

    int[] newDimensions = getDimsNode.getDimensions(source);
    if (noDimensions.profile(newDimensions == null)) {
      DynamicObject attributes = result.getAttributes();
      if (attributes != null) {
        removeDim.execute(attributes);
        removeDimNames.execute(attributes);
      }

      RStringVector vecNames = getNamesNode.getNames(source);
      if (hasNamesSource.profile(vecNames != null)) {
        putNames.execute(initAttributes.execute(result), vecNames);
        return result;
      }
      return result;
    }

    putDim.execute(
        initAttributes.execute(result),
        RDataFactory.createIntVector(newDimensions, RDataFactory.COMPLETE_VECTOR));

    RList newDimNames = getDimNamesNode.getDimNames(source);
    if (hasDimNames.profile(newDimNames != null)) {
      putDimNames.execute(result.getAttributes(), newDimNames);
      newDimNames.elementNamePrefix = RRuntime.DIMNAMES_LIST_ELEMENT_NAME_PREFIX;
      return result;
    }
    return result;
  }