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json/tree: forward the arguments for to_json/from_json

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This commit is contained in:
Danny Robson 2018-06-22 14:08:59 +10:00
parent b918aa7fc0
commit 65dad60e09
1 changed files with 9 additions and 6 deletions
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15
json/tree.hpp
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@ -350,10 +350,13 @@ namespace json::tree {
// Instantiate this template for the type you wish to output. We use a // Instantiate this template for the type you wish to output. We use a
// helper class here to avoid partial template specialisation of a // helper class here to avoid partial template specialisation of a
// function (eg, for templated types). // function (eg, for templated types).
template <typename T> template <typename T, typename ...Args>
struct io { struct io {
static std::unique_ptr<json::tree::node> serialise (const T&); static std::unique_ptr<json::tree::node>
static T deserialise (const json::tree::node&); serialise (const T&, Args &&...args);
static T
deserialise (const json::tree::node&, Args &&...args);
}; };
} }
@ -363,7 +366,7 @@ template <typename T, class ...Args>
std::unique_ptr<json::tree::node> std::unique_ptr<json::tree::node>
to_json (const T &t, Args&&... args) to_json (const T &t, Args&&... args)
{ {
return json::tree::io<T>::serialise ( return json::tree::io<T,Args...>::serialise (
t, std::forward<Args>(args)... t, std::forward<Args>(args)...
); );
} }
@ -374,7 +377,7 @@ template <typename T, class ...Args>
T T
from_json (const json::tree::node &n, Args&&... args) from_json (const json::tree::node &n, Args&&... args)
{ {
return json::tree::io<T>::deserialise ( return json::tree::io<T,Args...>::deserialise (
n, std::forward<Args>(args)... n, std::forward<Args>(args)...
); );
} }
@ -385,7 +388,7 @@ template <typename T, class ...Args>
T T
from_json (const std::experimental::filesystem::path &src, Args &&...args) from_json (const std::experimental::filesystem::path &src, Args &&...args)
{ {
return from_json<T> ( return from_json<T,Args...> (
*json::tree::parse (src), *json::tree::parse (src),
std::forward<Args> (args)... std::forward<Args> (args)...
); );