LegalizeAdulthood marked an inline comment as done.
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:
> > LegalizeAdulthood wrote:
> > > 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?
> > What got me wondering: this definition is last in the file, and there is no
> > prior declaration of this function. How can there be any uses of it? We're
> > not in class scope, so all prior uses of `operator<<` or perhaps `PrintTo`
> > must have been resolved to some other function already. Or am I missing
> > something?
> It seems what other tests do is define a friend function in the parameter
> class. I'm going to push that and see if that is accepted.
Could have been an MSVC-ism, which is what I develop with. It was most
definitely being used while I was working on the test cases.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D124500/new/
https://reviews.llvm.org/D124500
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