41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_H_
|
|
#define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_H_
|
|
|
|
#include <string>
|
|
#include <optional>
|
|
|
|
namespace flutter_inappwebview_plugin
|
|
{
|
|
template<typename T>
|
|
static inline std::optional<T> make_pointer_optional(const T* value)
|
|
{
|
|
return value == nullptr ? std::nullopt : std::make_optional<T>(*value);
|
|
}
|
|
|
|
template<typename T>
|
|
static inline T get_flutter_value(const flutter::EncodableMap map, const char* string)
|
|
{
|
|
return std::get<T>(map.at(flutter::EncodableValue(string)));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline std::optional<T> get_optional_flutter_value(const flutter::EncodableMap map, const char* string)
|
|
{
|
|
return make_pointer_optional<T>(std::get_if<T>(&map.at(flutter::EncodableValue(string))));
|
|
}
|
|
|
|
static inline std::string variant_to_string(std::variant<std::string, int> var)
|
|
{
|
|
return std::visit([](auto&& arg) {
|
|
using T = std::decay_t<decltype(arg)>;
|
|
if constexpr (std::is_same_v<T, std::string>)
|
|
return arg;
|
|
else if constexpr (std::is_arithmetic_v<T>)
|
|
return std::to_string(arg);
|
|
else
|
|
static_assert(always_false_v<T>, "non-exhaustive visitor!");
|
|
}, var);
|
|
}
|
|
}
|
|
|
|
#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_H_
|