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Better formatting for generated files

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This commit is contained in:
Antony Polukhin
2016-07-18 23:42:07 +03:00
parent 27cd2d78e3
commit 9ecedfe6ca
2 changed files with 1108 additions and 552 deletions
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1586
include/boost/pfr/pfr_core17_generated.hpp
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74
misc/generate_cpp17.py
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@@ -1,18 +1,23 @@
#!/usr/bin/python
# Copyright (c) 2016 Antony Polukhin
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
######################################################################################################################
############################################################################################################################
import sys
PROLOGUE = """// Copyright (c) 2016 Antony Polukhin
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////// This is an auto generated header. Modify pfr/misc/generate_cpp17.py instead. //////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////// This is an auto generated header. Modify pfr/misc/generate_cpp17.py instead. ////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_PFR_CORE17_GENERATED_HPP
#define BOOST_PFR_CORE17_GENERATED_HPP
@@ -27,32 +32,32 @@ PROLOGUE = """// Copyright (c) 2016 Antony Polukhin
namespace boost { namespace pfr { namespace detail {
template <class T>
constexpr decltype(auto) as_tuple_impl(const T& val, size_t_<0>) noexcept {
return sequence_tuple::tuple<>{};
template <class... Args>
constexpr auto make_tuple_of_references(Args&&... args) noexcept {
return sequence_tuple::tuple<Args&...>{ std::forward<Args>(args)... };
}
template <class T>
constexpr decltype(auto) as_tuple_impl(T& val, size_t_<0>) noexcept {
return sequence_tuple::tuple<>{};
constexpr auto as_tuple_impl(T&& /*val*/, size_t_<0>) noexcept {
return sequence_tuple::tuple<>{};
}
"""
######################################################################################################################
############################################################################################################################
EPILOGUE = """
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template <class T>
constexpr decltype(auto) as_tuple(const T& val) noexcept {
typedef size_t_<fields_count<T>()> fields_count_tag;
return detail::as_tuple_impl(val, fields_count_tag{});
constexpr auto as_tuple(const T& val) noexcept {
typedef size_t_<fields_count<T>()> fields_count_tag;
return detail::as_tuple_impl(val, fields_count_tag{});
}
template <class T>
constexpr decltype(auto) as_tuple(T& val) noexcept {
typedef size_t_<fields_count<T>()> fields_count_tag;
return detail::as_tuple_impl(val, fields_count_tag{});
constexpr auto as_tuple(T& val) noexcept {
typedef size_t_<fields_count<T>()> fields_count_tag;
return detail::as_tuple_impl(val, fields_count_tag{});
}
}}} // namespace boost::pfr
@@ -60,19 +65,30 @@ constexpr decltype(auto) as_tuple(T& val) noexcept {
#endif // BOOST_PFR_CORE17_GENERATED_HPP
"""
######################################################################################################################
############################################################################################################################
indexes = []
indexes = ""
print PROLOGUE
for i in xrange(50):
indexes += [str(i)]
for signature in ("const T& val", "T& val"):
print "template <class T>"
print "constexpr decltype(auto) as_tuple_impl(" + signature + ", size_t_<" + str(i + 1) + ">) noexcept {"
print " auto& [a" + ", a".join(indexes) + "] = val;"
print " return sequence_tuple::tuple<decltype(a" + "), decltype(a".join(indexes) + ")>{"
print " a" + ", a".join(indexes)
print " };"
print "}\n"
funcs_count = 100 if len(sys.argv) == 1 else int(sys.argv[1])
for i in xrange(funcs_count):
if i == 0:
indexes = " "
elif i % 30 == 0:
indexes += ",\n "
else:
indexes += ","
indexes += ("a" + str(i)).rjust(3 if funcs_count < 101 else 4, ' ')
print "template <class T>"
print "constexpr auto as_tuple_impl(T&& val, size_t_<" + str(i + 1) + ">) noexcept {"
print " auto& ["
print indexes
print " ] = std::forward<T>(val);"
print ""
print " return ::boost::pfr::detail::make_tuple_of_references("
print indexes
print " );"
print "}\n"
print EPILOGUE