From 20c087a795638e904792c471d8de158cc97c208a Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Wed, 3 May 2023 09:56:12 -0700
Subject: Add lifetimebound attribute to some Abseil containers

PiperOrigin-RevId: 529119690
Change-Id: If585274c409e2a344c8d60759da6f8f990023d29
---
 absl/container/internal/raw_hash_map.h | 53 ++++++++++++++++++++++------------
 1 file changed, 35 insertions(+), 18 deletions(-)

(limited to 'absl/container/internal/raw_hash_map.h')

diff --git a/absl/container/internal/raw_hash_map.h b/absl/container/internal/raw_hash_map.h
index c7df2efc..2d5a8710 100644
--- a/absl/container/internal/raw_hash_map.h
+++ b/absl/container/internal/raw_hash_map.h
@@ -71,43 +71,51 @@ class raw_hash_map : public raw_hash_set<Policy, Hash, Eq, Alloc> {
   //   m.insert_or_assign(n, n);
   template <class K = key_type, class V = mapped_type, K* = nullptr,
             V* = nullptr>
-  std::pair<iterator, bool> insert_or_assign(key_arg<K>&& k, V&& v) {
+  std::pair<iterator, bool> insert_or_assign(key_arg<K>&& k, V&& v)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign_impl(std::forward<K>(k), std::forward<V>(v));
   }
 
   template <class K = key_type, class V = mapped_type, K* = nullptr>
-  std::pair<iterator, bool> insert_or_assign(key_arg<K>&& k, const V& v) {
+  std::pair<iterator, bool> insert_or_assign(key_arg<K>&& k, const V& v)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign_impl(std::forward<K>(k), v);
   }
 
   template <class K = key_type, class V = mapped_type, V* = nullptr>
-  std::pair<iterator, bool> insert_or_assign(const key_arg<K>& k, V&& v) {
+  std::pair<iterator, bool> insert_or_assign(const key_arg<K>& k, V&& v)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign_impl(k, std::forward<V>(v));
   }
 
   template <class K = key_type, class V = mapped_type>
-  std::pair<iterator, bool> insert_or_assign(const key_arg<K>& k, const V& v) {
+  std::pair<iterator, bool> insert_or_assign(const key_arg<K>& k, const V& v)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign_impl(k, v);
   }
 
   template <class K = key_type, class V = mapped_type, K* = nullptr,
             V* = nullptr>
-  iterator insert_or_assign(const_iterator, key_arg<K>&& k, V&& v) {
+  iterator insert_or_assign(const_iterator, key_arg<K>&& k,
+                            V&& v) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign(std::forward<K>(k), std::forward<V>(v)).first;
   }
 
   template <class K = key_type, class V = mapped_type, K* = nullptr>
-  iterator insert_or_assign(const_iterator, key_arg<K>&& k, const V& v) {
+  iterator insert_or_assign(const_iterator, key_arg<K>&& k,
+                            const V& v) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign(std::forward<K>(k), v).first;
   }
 
   template <class K = key_type, class V = mapped_type, V* = nullptr>
-  iterator insert_or_assign(const_iterator, const key_arg<K>& k, V&& v) {
+  iterator insert_or_assign(const_iterator, const key_arg<K>& k,
+                            V&& v) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign(k, std::forward<V>(v)).first;
   }
 
   template <class K = key_type, class V = mapped_type>
-  iterator insert_or_assign(const_iterator, const key_arg<K>& k, const V& v) {
+  iterator insert_or_assign(const_iterator, const key_arg<K>& k,
+                            const V& v) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return insert_or_assign(k, v).first;
   }
 
@@ -118,29 +126,33 @@ class raw_hash_map : public raw_hash_set<Policy, Hash, Eq, Alloc> {
             typename std::enable_if<
                 !std::is_convertible<K, const_iterator>::value, int>::type = 0,
             K* = nullptr>
-  std::pair<iterator, bool> try_emplace(key_arg<K>&& k, Args&&... args) {
+  std::pair<iterator, bool> try_emplace(key_arg<K>&& k, Args&&... args)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return try_emplace_impl(std::forward<K>(k), std::forward<Args>(args)...);
   }
 
   template <class K = key_type, class... Args,
             typename std::enable_if<
                 !std::is_convertible<K, const_iterator>::value, int>::type = 0>
-  std::pair<iterator, bool> try_emplace(const key_arg<K>& k, Args&&... args) {
+  std::pair<iterator, bool> try_emplace(const key_arg<K>& k, Args&&... args)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return try_emplace_impl(k, std::forward<Args>(args)...);
   }
 
   template <class K = key_type, class... Args, K* = nullptr>
-  iterator try_emplace(const_iterator, key_arg<K>&& k, Args&&... args) {
+  iterator try_emplace(const_iterator, key_arg<K>&& k,
+                       Args&&... args) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return try_emplace(std::forward<K>(k), std::forward<Args>(args)...).first;
   }
 
   template <class K = key_type, class... Args>
-  iterator try_emplace(const_iterator, const key_arg<K>& k, Args&&... args) {
+  iterator try_emplace(const_iterator, const key_arg<K>& k,
+                       Args&&... args) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return try_emplace(k, std::forward<Args>(args)...).first;
   }
 
   template <class K = key_type, class P = Policy>
-  MappedReference<P> at(const key_arg<K>& key) {
+  MappedReference<P> at(const key_arg<K>& key) ABSL_ATTRIBUTE_LIFETIME_BOUND {
     auto it = this->find(key);
     if (it == this->end()) {
       base_internal::ThrowStdOutOfRange(
@@ -150,7 +162,8 @@ class raw_hash_map : public raw_hash_set<Policy, Hash, Eq, Alloc> {
   }
 
   template <class K = key_type, class P = Policy>
-  MappedConstReference<P> at(const key_arg<K>& key) const {
+  MappedConstReference<P> at(const key_arg<K>& key) const
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     auto it = this->find(key);
     if (it == this->end()) {
       base_internal::ThrowStdOutOfRange(
@@ -160,18 +173,21 @@ class raw_hash_map : public raw_hash_set<Policy, Hash, Eq, Alloc> {
   }
 
   template <class K = key_type, class P = Policy, K* = nullptr>
-  MappedReference<P> operator[](key_arg<K>&& key) {
+  MappedReference<P> operator[](key_arg<K>&& key)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return Policy::value(&*try_emplace(std::forward<K>(key)).first);
   }
 
   template <class K = key_type, class P = Policy>
-  MappedReference<P> operator[](const key_arg<K>& key) {
+  MappedReference<P> operator[](const key_arg<K>& key)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     return Policy::value(&*try_emplace(key).first);
   }
 
  private:
   template <class K, class V>
-  std::pair<iterator, bool> insert_or_assign_impl(K&& k, V&& v) {
+  std::pair<iterator, bool> insert_or_assign_impl(K&& k, V&& v)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     auto res = this->find_or_prepare_insert(k);
     if (res.second)
       this->emplace_at(res.first, std::forward<K>(k), std::forward<V>(v));
@@ -181,7 +197,8 @@ class raw_hash_map : public raw_hash_set<Policy, Hash, Eq, Alloc> {
   }
 
   template <class K = key_type, class... Args>
-  std::pair<iterator, bool> try_emplace_impl(K&& k, Args&&... args) {
+  std::pair<iterator, bool> try_emplace_impl(K&& k, Args&&... args)
+      ABSL_ATTRIBUTE_LIFETIME_BOUND {
     auto res = this->find_or_prepare_insert(k);
     if (res.second)
       this->emplace_at(res.first, std::piecewise_construct,
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