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Config: Handle unknown system strings better

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Currently, a simple typo in the system name will trigger an assert
message that complains about a "programming error". This is not
user friendly and misleading.

So this changes GetSystemFromName to return an std::optional, which
allows for callers to check whether the system exists and handle
failures better.
This commit is contained in:
Léo Lam 2017-11-26 18:24:01 +01:00
commit 05c8d229af
4 changed files with 14 additions and 8 deletions
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3
Source/Core/Common/Config/Config.h
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@ -7,6 +7,7 @@
#include <functional>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include "Common/Config/ConfigInfo.h"
@ -38,7 +39,7 @@ void Shutdown();
void ClearCurrentRunLayer();
const std::string& GetSystemName(System system);
System GetSystemFromName(const std::string& system);
std::optional<System> GetSystemFromName(const std::string& system);
const std::string& GetLayerName(LayerType layer);
LayerType GetActiveLayerForConfig(const ConfigLocation&);