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merge(3p/abseil_cpp): Merge upstream at 'ccdbb5941'

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Change-Id: I6e85fc7b5f76bba1f1eef15e600a8acb64e97ef5
This commit is contained in:
Vincent Ambo 2020-06-17 14:53:11 +01:00
commit 543379ce45
97 changed files with 3546 additions and 2316 deletions
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43
third_party/abseil_cpp/absl/flags/internal/registry.h vendored
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@ -17,11 +17,9 @@
#define ABSL_FLAGS_INTERNAL_REGISTRY_H_
#include <functional>
#include <map>
#include <string>
#include "absl/base/config.h"
#include "absl/base/macros.h"
#include "absl/flags/commandlineflag.h"
#include "absl/flags/internal/commandlineflag.h"
#include "absl/strings/string_view.h"
@ -32,19 +30,16 @@ namespace absl {
ABSL_NAMESPACE_BEGIN
namespace flags_internal {
CommandLineFlag* FindCommandLineFlag(absl::string_view name);
CommandLineFlag* FindRetiredFlag(absl::string_view name);
// Executes specified visitor for each non-retired flag in the registry.
// Requires the caller hold the registry lock.
void ForEachFlagUnlocked(std::function<void(CommandLineFlag*)> visitor);
void ForEachFlagUnlocked(std::function<void(CommandLineFlag&)> visitor);
// Executes specified visitor for each non-retired flag in the registry. While
// callback are executed, the registry is locked and can't be changed.
void ForEachFlag(std::function<void(CommandLineFlag*)> visitor);
void ForEachFlag(std::function<void(CommandLineFlag&)> visitor);
//-----------------------------------------------------------------------------
bool RegisterCommandLineFlag(CommandLineFlag*);
bool RegisterCommandLineFlag(CommandLineFlag&);
//-----------------------------------------------------------------------------
// Retired registrations:
@ -87,36 +82,6 @@ inline bool RetiredFlag(const char* flag_name) {
return flags_internal::Retire(flag_name, base_internal::FastTypeId<T>());
}
// If the flag is retired, returns true and indicates in |*type_is_bool|
// whether the type of the retired flag is a bool.
// Only to be called by code that needs to explicitly ignore retired flags.
bool IsRetiredFlag(absl::string_view name, bool* type_is_bool);
//-----------------------------------------------------------------------------
// Saves the states (value, default value, whether the user has set
// the flag, registered validators, etc) of all flags, and restores
// them when the FlagSaver is destroyed.
//
// This class is thread-safe. However, its destructor writes to
// exactly the set of flags that have changed value during its
// lifetime, so concurrent _direct_ access to those flags
// (i.e. FLAGS_foo instead of {Get,Set}CommandLineOption()) is unsafe.
class FlagSaver {
public:
FlagSaver();
~FlagSaver();
FlagSaver(const FlagSaver&) = delete;
void operator=(const FlagSaver&) = delete;
// Prevents saver from restoring the saved state of flags.
void Ignore();
private:
class FlagSaverImpl* impl_; // we use pimpl here to keep API steady
};
} // namespace flags_internal
ABSL_NAMESPACE_END
} // namespace absl