[Lldb-commits] [lldb] [lldb][libc++] Adds valarray data formatters. (PR #80609)

[Michael Buch via lldb-commits]

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@@ -0,0 +1,140 @@
+//===-- LibCxxValarray.cpp ------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "LibCxx.h"
+
+#include "lldb/Core/ValueObject.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include <optional>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+namespace lldb_private {
+namespace formatters {
+class LibcxxStdValarraySyntheticFrontEnd : public SyntheticChildrenFrontEnd {
+public:
+  LibcxxStdValarraySyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
+
+  ~LibcxxStdValarraySyntheticFrontEnd() override;
+
+  size_t CalculateNumChildren() override;
+
+  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
+
+  bool Update() override;
+
+  bool MightHaveChildren() override;
+
+  size_t GetIndexOfChildWithName(ConstString name) override;
+
+private:
+  ValueObject *m_start = nullptr;
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Michael137 wrote:

I think we should also add a comment about lifetime here (e.g., `pointer is held, not owned`)

https://github.com/llvm/llvm-project/pull/80609