err = rt.Right.aggregateRow(r, tableAlias)
		if err != nil {
			return err
		}
	}
	return nil
}

func (e *UnaryTerm) aggregateRow(r Record, tableAlias string) error {
	if e.Negated != nil {
		return e.Negated.Term.aggregateRow(r, tableAlias)
	}
	return e.Primary.aggregateRow(r, tableAlias)
}

func (e *PrimaryTerm) aggregateRow(r Record, tableAlias string) error {
	switch {
	case e.ListExpr != nil:

	result.combine(e.Left.analyze(s))
	for _, r := range e.Right {
		result.combine(r.Right.analyze(s))
	}
	return
}

func (e *UnaryTerm) analyze(s *Select) (result qProp) {
	if e.Negated != nil {
		result = e.Negated.Term.analyze(s)
	} else {
		result = e.Primary.analyze(s)
	}
	return
}

func (e *PrimaryTerm) analyze(s *Select) (result qProp) {
	switch {
	case e.Value != nil:

	}
	return lval, nil
}

func (e *UnaryTerm) evalNode(r Record, tableAlias string) (*Value, error) {
	if e.Negated == nil {
		return e.Primary.evalNode(r, tableAlias)
	}

	v, err := e.Negated.Term.evalNode(r, tableAlias)
	if err != nil {
		return nil, err
	}

	inferTypeForArithOp(v)
	v.negate()
	if v.isNumeric() {
		return v, nil
	}
	return nil, errArithMismatchedTypes
}

type OpUnaryTerm struct {
	Op    string     `parser:"@(\"*\" | \"/\" | \"%\")"`
	Right *UnaryTerm `parser:"@@"`
}

// UnaryTerm represents a single negated term or a primary term
type UnaryTerm struct {
	Negated *NegatedTerm `parser:"  @@"`
	Primary *PrimaryTerm `parser:"| @@"`
}

// NegatedTerm has a leading minus sign.
type NegatedTerm struct {
	Term *PrimaryTerm `parser:"\"-\" @@"`
}

    }
  }

  // Non-static factory implementation classes

  /** Implementation of {@link #negate()}. */
  private static class Negated extends CharMatcher {

    final CharMatcher original;

    Negated(CharMatcher original) {
      this.original = checkNotNull(original);
    }

    @Override
    public boolean matches(char c) {

    }
  }

  // Non-static factory implementation classes

  /** Implementation of {@link #negate()}. */
  private static class Negated extends CharMatcher {

    final CharMatcher original;

    Negated(CharMatcher original) {
      this.original = checkNotNull(original);
    }

    @Override
    public boolean matches(char c) {

  Run({{func_feed, Int32Tensor(3)}}, func_op, -3);
  VerifyFDef({"neg"}, {{"feed", DT_INT32}}, {{"negated_num", DT_INT32}},
             {{"feed", "neg:0"}, {"neg:y:0", "negated_num"}}, {});
}

TEST_F(CApiFunctionTest, OutputNames_SameNameAsInput) {
  /*
   *                   |
   *                   v
   *                 negate
   *                   |
   *                   v
   */
  // Define

     */
    @Nonnull
    <T> Optional<T> lookupOptional(Class<T> type, String name);

    /**
     * Performs a collection lookup for given typed components.
     *
     * @param type The component type.
     * @return The list of components. The list may be empty if no components found.
     * @param <T> The component type.
     * @throws LookupException if there is some provisioning related issue.
     */

    assertEquals(expected, matcher.toString());
    assertEquals(expected, matcher.precomputed().toString());
    assertEquals(expected, matcher.negate().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().precomputed().toString());
  }

    assertEquals(expected, matcher.toString());
    assertEquals(expected, matcher.precomputed().toString());
    assertEquals(expected, matcher.negate().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().precomputed().toString());
  }