// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef TEST_STD_INPUT_OUTPUT_FILESYSTEMS_CLASS_PATH_PATH_HELPER_H
#define TEST_STD_INPUT_OUTPUT_FILESYSTEMS_CLASS_PATH_PATH_HELPER_H

#include <cstddef>
#include <iterator>

#include <filesystem>
#include "make_string.h"
namespace fs = std::filesystem;

// Testing the allocation behavior of the code_cvt functions requires
// *knowing* that the allocation was not done by "path::__str_".
// This hack forces path to allocate enough memory.
inline void PathReserve(fs::path& p, std::size_t N) {
  auto const& native_ref = p.native();
  const_cast<fs::path::string_type&>(native_ref).reserve(N);
}

inline bool PathEq(fs::path const& LHS, fs::path const& RHS) {
  return LHS.native() == RHS.native();
}

inline bool PathEqIgnoreSep(fs::path LHS, fs::path RHS) {
  LHS.make_preferred();
  RHS.make_preferred();
  return LHS.native() == RHS.native();
}

template <class Iter>
Iter IterEnd(Iter B) {
  using VT = typename std::iterator_traits<Iter>::value_type;
  for (; *B != VT{}; ++B)
    ;
  return B;
}

template <class CharT>
const CharT* StrEnd(CharT const* P) {
    return IterEnd(P);
}

template <class CharT>
std::size_t StrLen(CharT const* P) {
    return StrEnd(P) - P;
}

const MultiStringType PathList[] = {
        MKSTR(""),
        MKSTR(" "),
        MKSTR("//"),
        MKSTR("."),
        MKSTR(".."),
        MKSTR("foo"),
        MKSTR("/"),
        MKSTR("/foo"),
        MKSTR("foo/"),
        MKSTR("/foo/"),
        MKSTR("foo/bar"),
        MKSTR("/foo/bar"),
        MKSTR("//net"),
        MKSTR("//net/foo"),
        MKSTR("///foo///"),
        MKSTR("///foo///bar"),
        MKSTR("/."),
        MKSTR("./"),
        MKSTR("/.."),
        MKSTR("../"),
        MKSTR("foo/."),
        MKSTR("foo/.."),
        MKSTR("foo/./"),
        MKSTR("foo/./bar"),
        MKSTR("foo/../"),
        MKSTR("foo/../bar"),
        MKSTR("c:"),
        MKSTR("c:/"),
        MKSTR("c:foo"),
        MKSTR("c:/foo"),
        MKSTR("c:foo/"),
        MKSTR("c:/foo/"),
        MKSTR("c:/foo/bar"),
        MKSTR("prn:"),
        MKSTR("c:\\"),
        MKSTR("c:\\foo"),
        MKSTR("c:foo\\"),
        MKSTR("c:\\foo\\"),
        MKSTR("c:\\foo/"),
        MKSTR("c:/foo\\bar"),
        MKSTR("//"),
        MKSTR("/finally/we/need/one/really/really/really/really/really/really/really/long/string")
};
const unsigned PathListSize = sizeof(PathList) / sizeof(MultiStringType);

#endif // TEST_STD_INPUT_OUTPUT_FILESYSTEMS_CLASS_PATH_PATH_HELPER_H