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Export of internal Abseil changes

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--
d857e6e1f9b09a3eb5abd890677a98b23346f07a by Abseil Team <absl-team@google.com>:

Simplify internal TryAcquireWithSpinning.

No point declaring the `result` variable: we can just return the results
directly.

PiperOrigin-RevId: 307045800

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421952252bc23be51f47f7d23f3422bad1ed382c by Derek Mauro <dmauro@google.com>:

Add custom sink support for `absl::Format()` through an ADL extension mechanism.

Users can now define
`void AbslFormatFlush(MySink* dest, absl::string_view part)`
to allow `absl::Format()` to append to a custom sink.

PiperOrigin-RevId: 306929052

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c73d5cdb62cd58ea421ed1aeeab78a0ffcfeeefb by Matt Calabrese <calabrese@google.com>:

Internal-only conformance-testing macro ABSL_INTERNAL_ASSERT_CONFORMANCE_OF for compile-time and runtime checks of a specified type, expected properties of that type, and a logically-ordered series of equivalence classes of that type.

PiperOrigin-RevId: 306885512

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a8c2495a07f37d68907855e3f0535bd5c27a3b52 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 306766753
GitOrigin-RevId: d857e6e1f9b09a3eb5abd890677a98b23346f07a
Change-Id: Ic23c92ac74f9ffcbb2471ff8c6691f4b7b20354b
This commit is contained in:
Abseil Team 2020-04-17 08:13:06 -07:00 • committed by Mark Barolak
parent db5773a721
commit b35973e3e3
16 changed files with 3096 additions and 44 deletions
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39
absl/strings/internal/str_format/extension_test.cc
View file

@ -19,9 +19,27 @@
#include <random>
#include <string>
#include "absl/strings/str_format.h"
#include "absl/strings/cord.h"
#include "gtest/gtest.h"
#include "absl/strings/str_format.h"
#include "absl/strings/string_view.h"
namespace my_namespace {
class UserDefinedType {
public:
UserDefinedType() = default;
void Append(absl::string_view str) { value_.append(str.data(), str.size()); }
const std::string& Value() const { return value_; }
friend void AbslFormatFlush(UserDefinedType* x, absl::string_view str) {
x->Append(str);
}
private:
std::string value_;
};
} // namespace my_namespace
namespace {
@ -63,4 +81,21 @@ TEST(FormatExtensionTest, SinkAppendChars) {
EXPECT_EQ(actual, expected);
}
}
TEST(FormatExtensionTest, CordSink) {
absl::Cord c;
absl::Format(&c, "There were %04d little %s.", 3, "pigs");
EXPECT_EQ(c, "There were 0003 little pigs.");
absl::Format(&c, "And %-3llx bad wolf!", 1);
EXPECT_EQ(c, "There were 0003 little pigs.And 1 bad wolf!");
}
TEST(FormatExtensionTest, CustomSink) {
my_namespace::UserDefinedType sink;
absl::Format(&sink, "There were %04d little %s.", 3, "pigs");
EXPECT_EQ("There were 0003 little pigs.", sink.Value());
absl::Format(&sink, "And %-3llx bad wolf!", 1);
EXPECT_EQ("There were 0003 little pigs.And 1 bad wolf!", sink.Value());
}
} // namespace