struct ChronoUnit;
%struct-type
%language=C++
%define class-name ChronoUnitPerfectHash
%readonly-tables
%compare-strncmp
%omit-struct-type
%{
/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This software may be used and distributed according to the terms of the
 * GNU General Public License version 2.
 */
#include "eden/fs/utils/ChronoUnit.h"

using facebook::eden::ChronoUnit;
using folly::StringPiece;

namespace {
%}
%%
ns, 1, 1000000000
nanosecond, 1, 1000000000
nanoseconds, 1, 1000000000
us, 1, 1000000
# microseconds with a UTF-8 encoded Greek Mu character
"\xce\xbcs", 1, 1000000
microsecond, 1, 1000000
microseconds, 1, 1000000
ms, 1, 1000
millisecond, 1, 1000
milliseconds, 1, 1000
s, 1, 1
second, 1, 1
seconds, 1, 1
m, 60, 1
min, 60, 1
minute, 60, 1
minutes, 60, 1
h, 3600, 1
hr, 3600, 1
hour, 3600, 1
hours, 3600, 1
d, 86400, 1
day, 86400, 1
days, 86400, 1
wk, 604800, 1
week, 604800, 1
weeks, 604800, 1
# C++20 defines std::chrono::months as exactly 1/12 of 1 year
mon, 2629746, 1
month, 2629746, 1
months, 2629746, 1
# C++20 defines std::chrono::years as exactly 365.2425 days
yr, 31556952, 1
year, 31556952, 1
years, 31556952, 1
%%
} // unnamed namespace

namespace facebook {
namespace eden {

const ChronoUnit* FOLLY_NULLABLE lookupChronoUnitInfo(StringPiece unitName) {
  return ChronoUnitPerfectHash::in_word_set(unitName);
}

} // namespace eden
} // namespace facebook