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add a function to show a better error message

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ToruNiina
2018-12-10 15:06:28 +09:00
parent 8078c719fe
commit 8dfe187d59
1 changed files with 19 additions and 0 deletions
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19
toml/value.hpp
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@@ -15,6 +15,12 @@
namespace toml namespace toml
{ {
namespace detail
{
std::string // forward decl
format_error_for_value(const value&, const std::string&, const std::string&);
}// detail
template<typename T> template<typename T>
struct value_traits struct value_traits
{ {
@@ -555,6 +561,9 @@ class value
return detail::format_underline(msg, *(this->region_info_), com); 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&);
template<value_t T> template<value_t T>
struct switch_cast; struct switch_cast;
@@ -583,6 +592,16 @@ class value
}; };
}; };
namespace detail
{
inline std::string format_error_for_value(
const value& v, const std::string& m, const std::string& c)
{
return v.format_error(m, c);
}
}// detail
template<> struct value::switch_cast<value_t::Boolean> template<> struct value::switch_cast<value_t::Boolean>
{ {
static Boolean& invoke(value& v) {return v.boolean_;} static Boolean& invoke(value& v) {return v.boolean_;}