$$ -*- mode: c++; -*-
$var n = 50  $$ Maximum length of Values arguments we want to support.
$var maxtuple = 10  $$ Maximum number of Combine arguments we want to support.
// Copyright 2008 Google Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: vladl@google.com (Vlad Losev)

// Type and function utilities for implementing parameterized tests.
// This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
//
// Currently Google Test supports at most $n arguments in Values,
// and at most $maxtuple arguments in Combine. Please contact
// googletestframework@googlegroups.com if you need more.
// Please note that the number of arguments to Combine is limited
// by the maximum arity of the implementation of tr1::tuple which is
// currently set at $maxtuple.

#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_

#include <gtest/internal/gtest-port.h>

#ifdef GTEST_HAS_PARAM_TEST

#ifdef GTEST_HAS_COMBINE
#include <tr1/tuple>
#endif  // GTEST_HAS_COMBINE

#include <gtest/internal/gtest-param-util.h>

namespace testing {
namespace internal {

// Used in the Values() function to provide polymorphic capabilities.
template <typename T1>
class ValueArray1 {
 public:
  explicit ValueArray1(T1 v1) : v1_(v1) {}

  template <typename T>
  operator ParamGenerator<T>() const { return ValuesIn(&v1_, &v1_ + 1); }

 private:
  const T1 v1_;
};

$range i 2..n
$for i [[
$range j 1..i

template <$for j, [[typename T$j]]>
class ValueArray$i {
 public:
  ValueArray$i($for j, [[T$j v$j]]) : $for j, [[v$(j)_(v$j)]] {}

  template <typename T>
  operator ParamGenerator<T>() const {
    const T array[] = {$for j, [[v$(j)_]]};
    return ValuesIn(array);
  }

 private:
$for j [[

  const T$j v$(j)_;
]]

};

]]

#ifdef GTEST_HAS_COMBINE
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Generates values from the Cartesian product of values produced
// by the argument generators.
//
$range i 2..maxtuple
$for i [[
$range j 1..i
$range k 2..i

template <$for j, [[typename T$j]]>
class CartesianProductGenerator$i
    : public ParamGeneratorInterface< ::std::tr1::tuple<$for j, [[T$j]]> > {
 public:
  typedef ::std::tr1::tuple<$for j, [[T$j]]> ParamType;

  CartesianProductGenerator$i($for j, [[const ParamGenerator<T$j>& g$j]])
      : $for j, [[g$(j)_(g$j)]] {}
  virtual ~CartesianProductGenerator$i() {}

  virtual ParamIteratorInterface<ParamType>* Begin() const {
    return new Iterator(this, $for j, [[g$(j)_, g$(j)_.begin()]]);
  }
  virtual ParamIteratorInterface<ParamType>* End() const {
    return new Iterator(this, $for j, [[g$(j)_, g$(j)_.end()]]);
  }

 private:
  class Iterator : public ParamIteratorInterface<ParamType> {
   public:
    Iterator(const ParamGeneratorInterface<ParamType>* base, $for j, [[

      const ParamGenerator<T$j>& g$j,
      const typename ParamGenerator<T$j>::iterator& current$(j)]])
        : base_(base),
$for j, [[

          begin$(j)_(g$j.begin()), end$(j)_(g$j.end()), current$(j)_(current$j)
]]    {
      ComputeCurrentValue();
    }
    virtual ~Iterator() {}

    virtual const ParamGeneratorInterface<ParamType>* BaseGenerator() const {
      return base_;
    }
    // Advance should not be called on beyond-of-range iterators
    // so no component iterators must be beyond end of range, either.
    virtual void Advance() {
      assert(!AtEnd());
      ++current$(i)_;

$for k [[
      if (current$(i+2-k)_ == end$(i+2-k)_) {
        current$(i+2-k)_ = begin$(i+2-k)_;
        ++current$(i+2-k-1)_;
      }

]]
      ComputeCurrentValue();
    }
    virtual ParamIteratorInterface<ParamType>* Clone() const {
      return new Iterator(*this);
    }
    virtual const ParamType* Current() const { return &current_value_; }
    virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
      // Having the same base generator guarantees that the other
      // iterator is of the same type and we can downcast.
      GTEST_CHECK_(BaseGenerator() == other.BaseGenerator())
          << "The program attempted to compare iterators "
          << "from different generators." << std::endl;
      const Iterator* typed_other =
          CheckedDowncastToActualType<const Iterator>(&other);
      // We must report iterators equal if they both point beyond their
      // respective ranges. That can happen in a variety of fashions,
      // so we have to consult AtEnd().
      return (AtEnd() && typed_other->AtEnd()) ||
         ($for j  && [[

          current$(j)_ == typed_other->current$(j)_
]]);
    }

   private:
    Iterator(const Iterator& other)
        : base_(other.base_), $for j, [[

        begin$(j)_(other.begin$(j)_),
        end$(j)_(other.end$(j)_),
        current$(j)_(other.current$(j)_)
]] {
      ComputeCurrentValue();
    }

    void ComputeCurrentValue() {
      if (!AtEnd())
        current_value_ = ParamType($for j, [[*current$(j)_]]);
    }
    bool AtEnd() const {
      // We must report iterator past the end of the range when either of the
      // component iterators has reached the end of its range.
      return
$for j  || [[

          current$(j)_ == end$(j)_
]];
    }

    const ParamGeneratorInterface<ParamType>* const base_;
    // begin[i]_ and end[i]_ define the i-th range that Iterator traverses.
    // current[i]_ is the actual traversing iterator.
$for j [[

    const typename ParamGenerator<T$j>::iterator begin$(j)_;
    const typename ParamGenerator<T$j>::iterator end$(j)_;
    typename ParamGenerator<T$j>::iterator current$(j)_;
]]

    ParamType current_value_;
  };


$for j [[
  const ParamGenerator<T$j> g$(j)_;

]]
};


]]

// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Helper classes providing Combine() with polymorphic features. They allow
// casting CartesianProductGeneratorN<T> to ParamGenerator<U> if T is
// convertible to U.
//
$range i 2..maxtuple
$for i [[
$range j 1..i

template <$for j, [[class Generator$j]]>
class CartesianProductHolder$i {
 public:
CartesianProductHolder$i($for j, [[const Generator$j& g$j]])
      : $for j, [[g$(j)_(g$j)]] {}
  template <$for j, [[typename T$j]]>
  operator ParamGenerator< ::std::tr1::tuple<$for j, [[T$j]]> >() const {
    return ParamGenerator< ::std::tr1::tuple<$for j, [[T$j]]> >(
        new CartesianProductGenerator$i<$for j, [[T$j]]>(
$for j,[[

        static_cast<ParamGenerator<T$j> >(g$(j)_)
]]));
  }

 private:

$for j [[
  const Generator$j g$(j)_;

]]
};

]]

#endif  // GTEST_HAS_COMBINE

}  // namespace internal
}  // namespace testing

#endif  //  GTEST_HAS_PARAM_TEST

#endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_