Export of internal Abseil changes

--
034c30a00c64d93b9fcbc9d99a0a33801544d741 by Gennadiy Rozental <rogeeff@google.com>:

Split private handle interfaces accessor into a separate target with private visibility.

PiperOrigin-RevId: 310391488

--
6f6ca869309b17900b90849e08488ce7f7b0193a by Derek Mauro <dmauro@google.com>:

Remove __CLANG_SUPPORT_DYN_ANNOTATION__, which is a symbol defined by us
to be true in all builds

PiperOrigin-RevId: 310385325

--
ed5c1880c86973c000e826a3006b38e53ab3ed52 by Samuel Benzaquen <sbenza@google.com>:

Add tests to exercise extreme width and precision, and fix the overflows from
it.

PiperOrigin-RevId: 310224957
GitOrigin-RevId: 034c30a00c64d93b9fcbc9d99a0a33801544d741
Change-Id: I6c89a3c89ae92fa617c696044148ce9a79bcdda8

1 files changed, 52 insertions, 0 deletions

diff --git a/absl/flags/internal/private_handle_accessor.cc b/absl/flags/internal/private_handle_accessor.cc
new file mode 100644
index 00000000..ec5776bb
--- /dev/null
+++ b/absl/flags/internal/private_handle_accessor.cc
@@ -0,0 +1,52 @@
+//
+// Copyright 2020 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/flags/internal/private_handle_accessor.h"
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace flags_internal {
+
+FlagFastTypeId PrivateHandleAccessor::TypeId(const CommandLineFlag& flag) {
+  return flag.TypeId();
+}
+
+std::unique_ptr<FlagStateInterface> PrivateHandleAccessor::SaveState(
+    CommandLineFlag* flag) {
+  return flag->SaveState();
+}
+
+bool PrivateHandleAccessor::ValidateInputValue(const CommandLineFlag& flag,
+                                               absl::string_view value) {
+  return flag.ValidateInputValue(value);
+}
+
+void PrivateHandleAccessor::CheckDefaultValueParsingRoundtrip(
+    const CommandLineFlag& flag) {
+  flag.CheckDefaultValueParsingRoundtrip();
+}
+
+bool PrivateHandleAccessor::ParseFrom(CommandLineFlag* flag,
+                                      absl::string_view value,
+                                      flags_internal::FlagSettingMode set_mode,
+                                      flags_internal::ValueSource source,
+                                      std::string* error) {
+  return flag->ParseFrom(value, set_mode, source, error);
+}
+
+}  // namespace flags_internal
+ABSL_NAMESPACE_END
+}  // namespace absl
+