LegalizeAdulthood added inline comments.
================
Comment at:
clang-tools-extra/unittests/clang-tidy/ModernizeModuleTest.cpp:210-214
+std::ostream &operator<<(std::ostream &Str,
+ const clang::tidy::test::Param &Value) {
+ return Str << "Matched: " << std::boolalpha << Value.Matched << ", Text: '"
+ << Value.Text << "'";
+}
----------------
LegalizeAdulthood wrote:
> aaronpuchert wrote:
> > Seems to have caused a [build
> > failure](https://lab.llvm.org/buildbot/#/builders/57/builds/17915):
> >
> > ```
> > FAILED:
> > tools/clang/tools/extra/unittests/clang-tidy/CMakeFiles/ClangTidyTests.dir/ModernizeModuleTest.cpp.o
> >
> > /home/buildbots/clang.11.0.0/bin/clang++
> > --gcc-toolchain=/opt/rh/devtoolset-7/root/usr -DGTEST_HAS_RTTI=0 -D_DEBUG
> > -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
> > -D__STDC_LIMIT_MACROS -Itools/clang/tools/extra/unittests/clang-tidy
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/clang-tools-extra/unittests/clang-tidy
> >
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/clang/include
> > -Itools/clang/include -Iinclude
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/include
> >
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/clang-tools-extra/clang-tidy
> >
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/utils/unittest/googletest/include
> >
> > -I/home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/utils/unittest/googlemock/include
> > -fPIC -fvisibility-inlines-hidden -Werror -Werror=date-time
> > -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter
> > -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic
> > -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough
> > -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor
> > -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion
> > -Wmisleading-indentation -fdiagnostics-color -ffunction-sections
> > -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3
> > -DNDEBUG -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments
> > -fno-exceptions -fno-rtti -UNDEBUG -Wno-suggest-override -std=c++14 -MD -MT
> > tools/clang/tools/extra/unittests/clang-tidy/CMakeFiles/ClangTidyTests.dir/ModernizeModuleTest.cpp.o
> > -MF
> > tools/clang/tools/extra/unittests/clang-tidy/CMakeFiles/ClangTidyTests.dir/ModernizeModuleTest.cpp.o.d
> > -o
> > tools/clang/tools/extra/unittests/clang-tidy/CMakeFiles/ClangTidyTests.dir/ModernizeModuleTest.cpp.o
> > -c
> > /home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/clang-tools-extra/unittests/clang-tidy/ModernizeModuleTest.cpp
> > /home/buildbots/docker-RHEL-buildbot/SetupBot/worker_env/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/clang-tools-extra/unittests/clang-tidy/ModernizeModuleTest.cpp:210:15:
> > error: unused function 'operator<<' [-Werror,-Wunused-function]
> > std::ostream &operator<<(std::ostream &Str,
> > ^
> > 1 error generated.
> > ```
> Simon Pilgrim fixed it, but I don't understand why clang calls this function
> unused. When the test fails, gtest uses this function to pretty print the
> parameter. I'm rebuilding with a forced test failure to validate.
Yes, without this function the failing test prints results like this:
```
[ RUN ] TokenExpressionParserTests/MatcherTest.MatchResult/123
D:\legalize\llvm\llvm-project\clang-tools-extra\unittests\clang-tidy\ModernizeModuleTest.cpp(200):
error: Value of: matchText(GetParam().Text) == GetParam().Matched
Actual: false
Expected: true
[ FAILED ] TokenExpressionParserTests/MatcherTest.MatchResult/123, where
GetParam() = 16-byte object <00-00 00-00 00-00 00-00 40-EC 3B-D6 F6-7F 00-00>
(1 ms)
```
....which isn't particularly useful.
So how do we include pretty printers for tests without clang erroneously
flagging them as unused?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D124500/new/
https://reviews.llvm.org/D124500
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