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authorGravatar Abseil Team <absl-team@google.com>2020-05-12 15:05:26 -0700
committerGravatar Andy Getz <durandal@google.com>2020-05-12 21:04:49 -0400
commitcbfd0f0fe53d9d3495a3d607311d984fec37e692 (patch)
treea781b9fde3fafa8265b6e7a3b8fa063194ed9c3c /absl/base/internal/unique_small_name_test.cc
parentc45d1c09d517e145d722e00deea9be6c8be8dd57 (diff)
Export of internal Abseil changes
-- 6a60bc6c79a3069f49986c2567dd51d2792f8ec1 by Abseil Team <absl-team@google.com>: Internal cleanup PiperOrigin-RevId: 311210039 -- a1049de1dd9071efa3a3dda1c3f25ab578b23e27 by Laramie Leavitt <lar@google.com>: Internal change PiperOrigin-RevId: 311188627 -- c2ccddd1cd89ef9d79c35bbe9e1813164db27031 by Matt Kulukundis <kfm@google.com>: Migrate time parsing/formatting to string_view. - make a copy before handing to cctz but handle local cases without PiperOrigin-RevId: 311009254 -- d91d0cd68f3672a727ff76ee43f2da5226673d60 by Gennadiy Rozental <rogeeff@google.com>: Eliminate public method absl::Flag<T>::IsSpecfiedOnCommandLine. This interface was never intended to be supported. Prefer to react to the current value of flag. PiperOrigin-RevId: 310991916 -- 8ad41e7ec24f43598ed232545314117802e7895c by Gennadiy Rozental <rogeeff@google.com>: Internal change PiperOrigin-RevId: 310757743 -- f091f77a13ce9481218cb356f8b4ceb49c1530f9 by Jorg Brown <jorg@google.com>: Change #include of <iostream> to <iosfwd> from absl/strings/cord.h PiperOrigin-RevId: 310657413 -- 39419418af6be4ac9b9204ebe2c7a92a6c3a0bc9 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 310615554 GitOrigin-RevId: 6a60bc6c79a3069f49986c2567dd51d2792f8ec1 Change-Id: I57dd35424269d67740272c4f88b2de54d8022cb2
Diffstat (limited to 'absl/base/internal/unique_small_name_test.cc')
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diff --git a/absl/base/internal/unique_small_name_test.cc b/absl/base/internal/unique_small_name_test.cc
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+// 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 "gtest/gtest.h"
+#include "absl/base/optimization.h"
+#include "absl/strings/string_view.h"
+
+// This test by itself does not do anything fancy, but it serves as binary I can
+// query in shell test.
+
+namespace {
+
+template <class T>
+void DoNotOptimize(const T& var) {
+#ifdef __GNUC__
+ asm volatile("" : "+m"(const_cast<T&>(var)));
+#else
+ std::cout << (void*)&var;
+#endif
+}
+
+int very_long_int_variable_name ABSL_INTERNAL_UNIQUE_SMALL_NAME() = 0;
+char very_long_str_variable_name[] ABSL_INTERNAL_UNIQUE_SMALL_NAME() = "abc";
+
+TEST(UniqueSmallName, NonAutomaticVar) {
+ EXPECT_EQ(very_long_int_variable_name, 0);
+ EXPECT_EQ(absl::string_view(very_long_str_variable_name), "abc");
+}
+
+int VeryLongFreeFunctionName() ABSL_INTERNAL_UNIQUE_SMALL_NAME();
+
+TEST(UniqueSmallName, FreeFunction) {
+ DoNotOptimize(&VeryLongFreeFunctionName);
+
+ EXPECT_EQ(VeryLongFreeFunctionName(), 456);
+}
+
+int VeryLongFreeFunctionName() { return 456; }
+
+struct VeryLongStructName {
+ explicit VeryLongStructName(int i);
+
+ int VeryLongMethodName() ABSL_INTERNAL_UNIQUE_SMALL_NAME();
+
+ static int VeryLongStaticMethodName() ABSL_INTERNAL_UNIQUE_SMALL_NAME();
+
+ private:
+ int fld;
+};
+
+TEST(UniqueSmallName, Struct) {
+ VeryLongStructName var(10);
+
+ DoNotOptimize(var);
+ DoNotOptimize(&VeryLongStructName::VeryLongMethodName);
+ DoNotOptimize(&VeryLongStructName::VeryLongStaticMethodName);
+
+ EXPECT_EQ(var.VeryLongMethodName(), 10);
+ EXPECT_EQ(VeryLongStructName::VeryLongStaticMethodName(), 123);
+}
+
+VeryLongStructName::VeryLongStructName(int i) : fld(i) {}
+int VeryLongStructName::VeryLongMethodName() { return fld; }
+int VeryLongStructName::VeryLongStaticMethodName() { return 123; }
+
+} // namespace