More work on data formatters

Plugins/UEWingman/Source/UEWingman/Handlers/Test_TMaps.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "WingServer.h"
+#include "WingBasics.h"
+#include "Containers/BitArray.h"
+#include "Containers/SparseArray.h"
+#include "Test_TMaps.generated.h"
+
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+
+UCLASS()
+class UWing_Test_TMaps : public UWingHandler
+{
+	GENERATED_BODY()
+
+public:
+	virtual void Register() override
+	{
+		UWingServer::AddHandler(this,
+			TEXT("Constructs a small TMap, TBitArray, and TSparseArray so that "
+				"a developer can set a breakpoint and inspect them with the "
+				"lldb data formatters."));
+	}
+
+	virtual void Handle() override
+	{
+		TMap<int32, FString> Map;
+		Map.Add(1, TEXT("one"));
+		Map.Add(2, TEXT("two"));
+		Map.Add(3, TEXT("three"));
+		Map.Add(42, TEXT("forty-two"));
+
+		TBitArray<> Bits;
+		Bits.Add(true);
+		Bits.Add(false);
+		Bits.Add(true);
+		Bits.Add(true);
+		Bits.Add(false);
+
+		// Add a few entries, then remove a middle one so the live set is
+		// non-contiguous. Exercises the sparse-array formatter against a hole.
+		TSparseArray<FString> Sparse;
+		Sparse.Add(TEXT("alpha"));
+		int32 BetaIdx = Sparse.Add(TEXT("beta"));
+		Sparse.Add(TEXT("gamma"));
+		Sparse.Add(TEXT("delta"));
+		Sparse.RemoveAt(BetaIdx);
+
+		// Set a breakpoint on the following line to inspect Map, Bits, and Sparse.
+		WingOut::Stdout.Printf(TEXT("Test_TMaps: Map has %d entries, Bits has %d bits, Sparse has %d entries.\n"),
+			Map.Num(), Bits.Num(), Sparse.Num());
+	}
+};