Initial commit

arm9/source/core/task/TaskResult.h

@@ -0,0 +1,39 @@
+#pragma once
+#include "TaskState.h"
+
+template <class T>
+class TaskResult
+{
+    const TaskState _finalState;
+    const T _result;
+
+    TaskResult(TaskState finalState)
+        : _finalState(finalState) { }
+
+    TaskResult(const T& result)
+        : _finalState(TaskState::Completed), _result(result) { }
+
+public:
+    static TaskResult<T> Failed() { return TaskResult<T>(TaskState::Failed); }
+    static TaskResult<T> Canceled() { return TaskResult<T>(TaskState::Canceled); }
+    static TaskResult<T> Completed(const T& result) { return TaskResult<T>(result); }
+
+    TaskState GetFinalState() const { return _finalState; }
+    const T& GetResult() const { return _result; }
+};
+
+template <>
+class TaskResult<void>
+{
+    const TaskState _finalState;
+
+    TaskResult(TaskState finalState)
+        : _finalState(finalState) { }
+
+public:
+    static TaskResult<void> Failed() { return TaskResult<void>(TaskState::Failed); }
+    static TaskResult<void> Canceled() { return TaskResult<void>(TaskState::Canceled); }
+    static TaskResult<void> Completed() { return TaskResult<void>(TaskState::Completed); }
+
+    TaskState GetFinalState() const { return _finalState; }
+};