TextCache.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Map.h"
#include "Containers/StripedMap.h"
#include "HAL/Platform.h"
#include "Internationalization/Text.h"
#include "Misc/TransactionallySafeCriticalSection.h"
 
class FTextId;
 
class FTextCache
{
public:
    static FTextCache& Get();
    static void TearDown();
 
    FTextCache() = default;
 
    FTextCache(const FTextCache&) = delete;
    FTextCache& operator=(const FTextCache&) = delete;
 
    FText FindOrCache(const TCHAR* InTextLiteral, const FTextId& InTextId);
    FText FindOrCache(FStringView InTextLiteral, const FTextId& InTextId);
    FText FindOrCache(FString&& InTextLiteral, const FTextId& InTextId);
 
    void RemoveCache(const FTextId& InTextId);
    void RemoveCache(TArrayView<const FTextId> InTextIds);
    void RemoveCache(const TSet<FTextId>& InTextIds);
 
private:
    TStripedMap<32, FTextId, FText, FDefaultSetAllocator, TDefaultMapHashableKeyFuncs<FTextId, FText, false>, FTransactionallySafeStripedMapLockingPolicy> CachedText;
};