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Export of internal Abseil changes

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cf6037b985b629c253b8a87e4408c88a61baf89a by Abseil Team <absl-team@google.com>:

Adds an example of using ABSL_DEPRECATED on a template.
Without this, it's unclear where to add this annotation (e.g. before template <> or after it).

PiperOrigin-RevId: 270057224

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c53bc14dd683cc1e41c940a337001b42a0270eaf by Andy Getzendanner <durandal@google.com>:

Parser and unparser for command-line flags of type absl::LogSeverity.

PiperOrigin-RevId: 269939999

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d91174b02f3b213f0b26701d9d97c79f809e6fea by Abseil Team <absl-team@google.com>:

Fix a typo.

PiperOrigin-RevId: 269738777
GitOrigin-RevId: cf6037b985b629c253b8a87e4408c88a61baf89a
Change-Id: I6cec3101014e4c77f4ff2edb4c91740982dbb459
This commit is contained in:
Abseil Team 2019-09-19 09:27:34 -07:00 • committed by Shaindel Schwartz
parent 6ec1362810
commit ddf8e52a29
9 changed files with 234 additions and 38 deletions
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40
absl/flags/marshalling.cc
View file

@ -16,6 +16,7 @@
#include "absl/flags/marshalling.h"
#include <limits>
#include <type_traits>
#include "absl/base/macros.h"
#include "absl/strings/match.h"
@ -186,4 +187,43 @@ std::string AbslUnparseFlag(const std::vector<std::string>& v) {
}
} // namespace flags_internal
bool AbslParseFlag(absl::string_view text, absl::LogSeverity* dst,
std::string* err) {
text = absl::StripAsciiWhitespace(text);
if (text.empty()) {
*err = "no value provided";
return false;
}
if (text.front() == 'k' || text.front() == 'K') text.remove_prefix(1);
if (absl::EqualsIgnoreCase(text, "info")) {
*dst = absl::LogSeverity::kInfo;
return true;
}
if (absl::EqualsIgnoreCase(text, "warning")) {
*dst = absl::LogSeverity::kWarning;
return true;
}
if (absl::EqualsIgnoreCase(text, "error")) {
*dst = absl::LogSeverity::kError;
return true;
}
if (absl::EqualsIgnoreCase(text, "fatal")) {
*dst = absl::LogSeverity::kFatal;
return true;
}
std::underlying_type<absl::LogSeverity>::type numeric_value;
if (absl::ParseFlag(text, &numeric_value, err)) {
*dst = static_cast<absl::LogSeverity>(numeric_value);
return true;
}
*err = "only integers and absl::LogSeverity enumerators are accepted";
return false;
}
std::string AbslUnparseFlag(absl::LogSeverity v) {
if (v == absl::NormalizeLogSeverity(v)) return absl::LogSeverityName(v);
return absl::UnparseFlag(static_cast<int>(v));
}
} // namespace absl