From 6268f3ca09afef812cf288f323cacff22fbfcffc Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 4 Apr 2019 23:08:22 +0800
Subject: Finish refactor!!!

---
 include/cru/common/event.hpp  | 11 ++++++-----
 include/cru/common/format.hpp |  4 ++--
 2 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'include/cru/common')

diff --git a/include/cru/common/event.hpp b/include/cru/common/event.hpp
index 763f8378..6228d867 100644
--- a/include/cru/common/event.hpp
+++ b/include/cru/common/event.hpp
@@ -22,7 +22,7 @@ class Event {
         : resolver_(resolver), token_(token) {}
     EventHandlerRevokerImpl(const EventHandlerRevokerImpl& other) = default;
     EventHandlerRevokerImpl(EventHandlerRevokerImpl&& other) = default;
-    EventHandlerRevokerImpl& operator=(EventHandlerRevokerImpl&& other) =
+    EventHandlerRevokerImpl& operator=(const EventHandlerRevokerImpl& other) =
         default;
     EventHandlerRevokerImpl& operator=(EventHandlerRevokerImpl&& other) =
         default;
@@ -31,7 +31,7 @@ class Event {
     void operator()() {
       const auto true_resolver = resolver_.lock();
       if (true_resolver) {
-        true_resolver()->RemoveHandler(token_);
+        (*true_resolver)()->RemoveHandler(token_);
       }
     }
 
@@ -63,10 +63,11 @@ class Event {
     return EventHandlerRevoker(EventHandlerRevokerImpl(event_resolver_, token));
   }
 
-  template <typename... Args>
-  EventHandlerRevoker AddHandler(Args&& args...) {
+  template <typename Arg>
+  EventHandlerRevoker AddHandler(Arg&& handler) {
+    static_assert(std::is_invocable_v<Arg, TArgs...>, "Handler not invocable.");
     const auto token = current_token_++;
-    handlers_.emplace(token, EventHandler(std::forward<Args>(args)...));
+    handlers_.emplace(token, EventHandler(std::forward<Arg>(handler)));
     return EventHandlerRevoker(EventHandlerRevokerImpl(event_resolver_, token));
   }
 
diff --git a/include/cru/common/format.hpp b/include/cru/common/format.hpp
index 1fb6863a..f085635a 100644
--- a/include/cru/common/format.hpp
+++ b/include/cru/common/format.hpp
@@ -83,7 +83,7 @@ inline std::string_view FormatToString(const std::string& string,
 }
 
 inline std::wstring_view FormatToString(const std::wstring_view& string,
-                                        details::TypeTag<String>) {
+                                        details::TypeTag<std::wstring>) {
   return string;
 }
 
@@ -93,7 +93,7 @@ inline std::string_view FormatToString(const std::string_view& string,
 }
 
 inline std::wstring_view FormatToString(const wchar_t* string,
-                                        details::TypeTag<String>) {
+                                        details::TypeTag<std::wstring>) {
   return std::wstring_view(string);
 }
 
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