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Add ABSL_ATTRIBUTE_LIFETIME_BOUND to absl::Span constructors.

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This enables clang to catch more use-after-free bugs.

PiperOrigin-RevId: 692275317
Change-Id: I86c414a90d24d239ed67b3316fe74e1c24f95ed9
This commit is contained in:
Abseil Team
2024-11-01 13:29:16 -07:00
committed by Copybara-Service
parent 9ae4bb8007
commit 4b4f41e93d
1 changed files with 4 additions and 2 deletions
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6
absl/types/span.h
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@@ -219,12 +219,14 @@ class ABSL_ATTRIBUTE_VIEW Span {
static const size_type npos = ~(size_type(0));
constexpr Span() noexcept : Span(nullptr, 0) {}
constexpr Span(pointer array, size_type length) noexcept
constexpr Span(pointer array ABSL_ATTRIBUTE_LIFETIME_BOUND,
size_type length) noexcept
: ptr_(array), len_(length) {}
// Implicit conversion constructors
template <size_t N>
constexpr Span(T (&a)[N]) noexcept // NOLINT(google-explicit-constructor)
constexpr Span(T( // NOLINT(google-explicit-constructor)
&a ABSL_ATTRIBUTE_LIFETIME_BOUND)[N]) noexcept
: Span(a, N) {}
// Explicit reference constructor for a mutable `Span<T>` type. Can be