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-rw-r--r--src/result.hpp83
1 files changed, 46 insertions, 37 deletions
diff --git a/src/result.hpp b/src/result.hpp
index 09eadb5..8a59a90 100644
--- a/src/result.hpp
+++ b/src/result.hpp
@@ -20,58 +20,67 @@
#include <experimental/optional>
#include <functional>
-namespace wm {
+namespace wm
+{
-using std::experimental::optional;
using std::experimental::nullopt;
+using std::experimental::optional;
// We only ever return a string as an error - so just parametrize
// this over result type T
template <typename T>
-struct result {
- char const *e;
- optional<T> t;
-
- bool is_ok() const { return this->t != nullopt; }
- bool is_err() const { return this->e != nullptr; }
-
- T unwrap() {
- if (this->e != nullptr) {
- throw std::logic_error(this->e);
- }
- return this->t.value();
- }
-
- operator T() { return this->unwrap(); }
-
- char const *unwrap_err() { return this->e; }
-
- optional<T> const &ok() const { return this->t; }
- optional<char const *> err() const {
- return this->e ? optional<char const *>(this->e) : nullopt;
- }
-
- result<T> map_err(std::function<char const *(char const *)> f);
+struct result
+{
+ char const *e;
+ optional<T> t;
+
+ bool is_ok() const { return this->t != nullopt; }
+ bool is_err() const { return this->e != nullptr; }
+
+ T unwrap()
+ {
+ if (this->e != nullptr)
+ {
+ throw std::logic_error(this->e);
+ }
+ return this->t.value();
+ }
+
+ operator T() { return this->unwrap(); }
+
+ char const *unwrap_err() { return this->e; }
+
+ optional<T> const &ok() const { return this->t; }
+ optional<char const *> err() const
+ {
+ return this->e ? optional<char const *>(this->e) : nullopt;
+ }
+
+ result<T> map_err(std::function<char const *(char const *)> f);
};
template <typename T>
-struct result<T> Err(char const *e) {
- return result<T>{e, nullopt};
+struct result<T> Err(char const *e)
+{
+ return result<T>{e, nullopt};
}
template <typename T>
-struct result<T> Ok(T t) {
- return result<T>{nullptr, t};
+struct result<T> Ok(T t)
+{
+ return result<T>{nullptr, t};
}
template <typename T>
-result<T> result<T>::map_err(std::function<char const *(char const *)> f) {
- if (this->is_err()) {
- return Err<T>(f(this->e));
- }
- return *this;
+result<T> result<T>::map_err(std::function<char const *(char const *)> f)
+{
+ if (this->is_err())
+ {
+ return Err<T>(f(this->e));
+ }
+ return *this;
}
-} // namespace wm
+} // namespace wm
-#endif // TMCAGLWM_RESULT_HPP
+#endif // TMCAGLWM_RESULT_HPP