remove format_error_for_value and add get_region instead

it is convenient to have get_region function that can access region_info
in toml::value. get_region is placed in toml::detail and made friend of
toml::value because I don't want to make toml::value::region_info public
and keep it internal use only.
This commit is contained in:
ToruNiina 2018-12-13 16:13:05 +09:00
parent 06f04af375
commit acc7b7870f
3 changed files with 29 additions and 34 deletions

View File

@ -182,9 +182,10 @@ T get(const value& v)
T container;
if(ar.size() != container.size())
{
throw std::out_of_range(detail::format_error_for_value(v, concat_to_string(
throw std::out_of_range(detail::format_underline(concat_to_string(
"[erorr] toml::get specified container size is ", container.size(),
" but there are ", ar.size(), " elements in toml array."), "here"));
" but there are ", ar.size(), " elements in toml array."),
detail::get_region(v), "here"));
}
std::transform(ar.cbegin(), ar.cend(), container.begin(),
[](const value& x){return ::toml::get<value_type>(x);});
@ -204,9 +205,9 @@ T get(const value& v)
const auto& ar = v.cast<value_t::Array>();
if(ar.size() != 2)
{
throw std::out_of_range(detail::format_error_for_value(v, concat_to_string(
throw std::out_of_range(detail::format_underline(concat_to_string(
"[erorr] toml::get specified std::pair but there are ", ar.size(),
" elements in toml array."), "here"));
" elements in toml array."), detail::get_region(v), "here"));
}
return std::make_pair(::toml::get<first_type >(ar.at(0)),
::toml::get<second_type>(ar.at(1)));
@ -234,10 +235,10 @@ T get(const value& v)
const auto& ar = v.cast<value_t::Array>();
if(ar.size() != std::tuple_size<T>::value)
{
throw std::out_of_range(detail::format_error_for_value(v, concat_to_string(
throw std::out_of_range(detail::format_underline(concat_to_string(
"[erorr] toml::get specified std::tuple with ",
std::tuple_size<T>::value, "elements, but there are ", ar.size(),
" elements in toml array."), "here"));
" elements in toml array."), detail::get_region(v), "here"));
}
return detail::get_tuple_impl<T>(ar,
detail::make_index_sequence<std::tuple_size<T>::value>{});
@ -312,9 +313,9 @@ find(const toml::value& v, const toml::key& ky)
const auto& tab = ::toml::get<toml::table>(v);
if(tab.count(ky) == 0)
{
throw std::out_of_range(detail::format_error_for_value(v,
concat_to_string("[error] key \"", ky, "\" not found"),
concat_to_string("in this table")));
throw std::out_of_range(detail::format_underline(concat_to_string(
"[error] key \"", ky, "\" not found"), detail::get_region(v),
"in this table"));
}
return ::toml::get<T>(tab.at(ky));
}
@ -325,9 +326,9 @@ find(toml::value& v, const toml::key& ky)
auto& tab = ::toml::get<toml::table>(v);
if(tab.count(ky) == 0)
{
throw std::out_of_range(detail::format_error_for_value(v,
concat_to_string("[error] key \"", ky, "\" not found"),
concat_to_string("in this table")));
throw std::out_of_range(detail::format_underline(concat_to_string(
"[error] key \"", ky, "\" not found"), detail::get_region(v),
"in this table"));
}
return ::toml::get<T>(tab.at(ky));
}
@ -338,9 +339,9 @@ find(toml::value&& v, const toml::key& ky)
auto tab = ::toml::get<toml::table>(std::move(v));
if(tab.count(ky) == 0)
{
throw std::out_of_range(detail::format_error_for_value(v,
concat_to_string("[error] key \"", ky, "\" not found"),
concat_to_string("in this table")));
throw std::out_of_range(detail::format_underline(concat_to_string(
"[error] key \"", ky, "\" not found"), detail::get_region(v),
"in this table"));
}
return ::toml::get<T>(std::move(tab[ky]));
}

View File

@ -6,6 +6,7 @@
#include "lexer.hpp"
#include "types.hpp"
#include "value.hpp"
#include <iostream>
#include <cstring>
namespace toml

View File

@ -17,8 +17,8 @@ namespace toml
namespace detail
{
std::string // forward decl
format_error_for_value(const value&, const std::string&, const std::string&);
// to show error messages. not recommended for users.
region_base const& get_region(const value&);
}// detail
template<typename T>
@ -555,14 +555,8 @@ class value
}
}
std::string
format_error(const std::string& msg, const std::string& com) const
{
return detail::format_underline(msg, *(this->region_info_), com);
}
friend std::string detail::format_error_for_value(
const value&, const std::string&, const std::string&);
// for error messages
friend region_base const& detail::get_region(const value&);
template<value_t T>
struct switch_cast;
@ -594,10 +588,9 @@ class value
namespace detail
{
inline std::string format_error_for_value(
const value& v, const std::string& m, const std::string& c)
inline region_base const& get_region(const value& v)
{
return v.format_error(m, c);
return *(v.region_info_);
}
}// detail
@ -668,8 +661,8 @@ typename detail::toml_default_type<T>::type& value::cast() &
{
if(T != this->type_)
{
throw type_error(this->format_error(concat_to_string(
"[error] toml::value bad_cast to ", T),
throw type_error(format_underline(concat_to_string(
"[error] toml::value bad_cast to ", T), *region_info_,
concat_to_string("the actual type is ", this->type_)));
}
return switch_cast<T>::invoke(*this);
@ -679,8 +672,8 @@ typename detail::toml_default_type<T>::type const& value::cast() const&
{
if(T != this->type_)
{
throw type_error(this->format_error(concat_to_string(
"[error] toml::value bad_cast to ", T),
throw type_error(format_underline(concat_to_string(
"[error] toml::value bad_cast to ", T), *region_info_,
concat_to_string("the actual type is ", this->type_)));
}
return switch_cast<T>::invoke(*this);
@ -690,8 +683,8 @@ typename detail::toml_default_type<T>::type&& value::cast() &&
{
if(T != this->type_)
{
throw type_error(this->format_error(concat_to_string(
"[error] toml::value bad_cast to ", T),
throw type_error(format_underline(concat_to_string(
"[error] toml::value bad_cast to ", T), *region_info_,
concat_to_string("the actual type is ", this->type_)));
}
return switch_cast<T>::invoke(std::move(*this));