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path: root/llvm/unittests/Support/ErrorOrTest.cpp
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* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Fix incorrect usage of std::is_assignable.Richard Smith2018-02-021-2/+2
| | | | | | We want to check that we can assign to an lvalue here, not a prvalue. llvm-svn: 324152
* Use std::forward to make ErrorOr<T> constructible from a value that has a ↵Nick Lewycky2016-02-091-1/+41
| | | | | | user-defined conversion to T. No functionality change intended. llvm-svn: 260196
* Don't use std::errc.Rafael Espindola2015-06-131-2/+2
| | | | | | | | | | | | | | | | | | | | | As noted on Errc.h: // * std::errc is just marked with is_error_condition_enum. This means that // common patters like AnErrorCode == errc::no_such_file_or_directory take // 4 virtual calls instead of two comparisons. And on some libstdc++ those virtual functions conclude that ------------------------ int main() { std::error_code foo = std::make_error_code(std::errc::no_such_file_or_directory); return foo == std::errc::no_such_file_or_directory; } ------------------------- should exit with 0. llvm-svn: 239683
* [Support] Fix ErrorOr equality operator.Michael J. Spencer2015-05-211-0/+5
| | | | llvm-svn: 237970
* Ensure ErrorOr cannot implicitly invoke explicit ctors of the underlying type.David Blaikie2014-09-031-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | An unpleasant surprise while migrating unique_ptrs (see changes in lib/Object): ErrorOr<int*> was implicitly convertible to ErrorOr<std::unique_ptr<int>>. Keep the explicit conversions otherwise it's a pain to convert ErrorOr<int*> to ErrorOr<std::unique_ptr<int>>. I'm not sure if there should be more SFINAE on those explicit ctors (I could check if !is_convertible && is_constructible, but since the ctor has to be called explicitly I don't think there's any need to disable them when !is_constructible - they'll just fail anyway. It's the converting ctors that can create interesting ambiguities without proper SFINAE). I had to SFINAE the explicit ones because otherwise they'd be ambiguous with the implicit ones in an explicit context, so far as I could tell. The converting assignment operators seemed unnecessary (and similarly buggy/dangerous) - just rely on the converting ctors to convert to the right type for assignment instead. llvm-svn: 217048
* Finishing touch for the std::error_code transition.Rafael Espindola2014-06-131-2/+3
| | | | | | | | | | | While std::error_code itself seems to work OK in all platforms, there are few annoying differences with regards to the std::errc enumeration. This patch adds a simple llvm enumeration, which will hopefully avoid build breakages in other platforms and surprises as we get more uses of std::error_code. llvm-svn: 210920
* Use std::error_code instead of llvm::error_code.Rafael Espindola2014-06-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea of this patch is to turn llvm/Support/system_error.h into a transitional header that just brings in the erorr_code api to the llvm namespace. I will remove it shortly afterwards. The cases where the general idea needed some tweaking: * std::errc is a namespace in msvc, so we cannot use "using std::errc". I could add an #ifdef, but there were not that many uses, so I just added std:: to them in this patch. * Template specialization had to be moved to the std namespace in this patch set already. * The msvc implementation of default_error_condition doesn't seem to provide the same transformations as we need. Not too surprising since the standard doesn't actually say what "equivalent" means. I fixed the problem by keeping our old mapping and using it at error_code construction time. Despite these shortcomings I think this is still a good thing. Some reasons: * The different implementations of system_error might improve over time. * It removes 925 lines of code from llvm already. * It removes 6313 bytes from the text segment of the clang binary when it is built with gcc and 2816 bytes when building with clang and libstdc++. llvm-svn: 210687
* [C++11] Use 'nullptr'.Craig Topper2014-06-081-4/+4
| | | | llvm-svn: 210442
* [C++11] Remove LLVM_HAS_CXX11_STDLIB now that it is just on.Chandler Carruth2014-03-011-6/+0
| | | | llvm-svn: 202587
* Use LLVM_EXPLICIT instead of a function pointer as bool.Rafael Espindola2014-01-161-1/+3
| | | | llvm-svn: 199437
* Add a unit test for the copy constructor.Rafael Espindola2014-01-091-0/+3
| | | | | | | | I would not normally add tests like these, but the copy constructor is not used at all in our codebase with c++11, so having this tests might prevent breaking the c++03 build again. llvm-svn: 198886
* Use getError and remove the error_code operator.Rafael Espindola2014-01-081-1/+1
| | | | llvm-svn: 198799
* Re-sort all of the includes with ./utils/sort_includes.py so thatChandler Carruth2014-01-071-2/+0
| | | | | | | | | | subsequent changes are easier to review. About to fix some layering issues, and wanted to separate out the necessary churn. Also comment and sink the include of "Windows.h" in three .inc files to match the usage in Memory.inc. llvm-svn: 198685
* Simplify ErrorOr.Rafael Espindola2013-11-051-38/+0
| | | | | | | | | | | | | | | | ErrorOr had quiet a bit of complexity and indirection to be able to hold a user type with the error. That feature is not used anymore. This patch removes it, it will live in svn history if we ever need it again. If we do need it again, IMHO there is one thing that should be done differently: Holding extra info in the error is not a property a function also returning a value or not. The ability to hold extra info should be in the error type and ErrorOr templated over it so that we don't need the funny looking ErrorOr<void>. llvm-svn: 194030
* [Support][ErrorOr] Add support for implicit conversion from error ↵Michael J. Spencer2013-02-281-3/+3
| | | | | | code/condition enums. llvm-svn: 176228
* [Support][ErrorOr] Add support for convertable types.Michael J. Spencer2013-02-061-0/+13
| | | | | | Thanks to Andrew, David, and Aaron for helping fix this. llvm-svn: 174552
* Revert "[Support][ErrorOr] Add support for convertable types."Andrew Trick2013-02-051-11/+0
| | | | | | | | | This reverts commit a33e1fafac7fedb1b080ef07ddf9ad6ddff3a830. This unit test crashes on Darwon. It needs to be temporarily reverted to unblock the test infrastructure. llvm-svn: 174458
* [Support][ErrorOr] Add support for convertable types.Michael J. Spencer2013-02-051-0/+11
| | | | llvm-svn: 174357
* [Support][ErrorOr] Add optimized specialization of ErrorOr<void>.Michael J. Spencer2013-01-231-0/+11
| | | | | | | | ErrorOr<void> represents an operation that returns nothing, but can still fail. It should be used in cases where you need the aditional user data that ErrorOr provides over error_code. llvm-svn: 173209
* ErrorOrTest.cpp: Check existence of EXPECT_DEBUG_DEATH. It is not always ↵NAKAMURA Takumi2013-01-221-0/+2
| | | | | | available. llvm-svn: 173123
* [Support] Make test C++03.Michael J. Spencer2013-01-211-4/+2
| | | | llvm-svn: 173004
* Disable test that fails due to lack of std::true_type in C++03.Benjamin Kramer2013-01-201-0/+2
| | | | | | Michael, can this test be ported to C++03? llvm-svn: 172996
* [Support] Port ErrorOr<T> from lld to C++03.Michael J. Spencer2013-01-201-0/+78
llvm-svn: 172991
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