Inconsistent lambda capture list formatting with trailing return type deduction


Bugzilla Link	PR28590
Status	NEW
Importance	P normal
Reported by	Vittorio Romeo (vittorio.romeo@outlook.com)
Reported on	2016-07-17 13:56:44 -0700
Last modified on	2016-07-17 13:56:44 -0700
Version	3.8
Hardware	PC Linux
CC	djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
Fixed by commit(s)
Attachments	`test_fmt_lambda.cpp` (186 bytes, text/x-c++src)
Blocks
Blocked by
See also

Created attachment 16756 Code example

Consider the following code, formatted by clang-format:

int main() { int x, y;

auto l0 = [x, y](auto z)
{ /* ... */ };

auto l1 = [x, y](auto z) -> int
{ /* ... */ };

auto l2 = [ x, y ](auto z) -> auto {/* ... */};

}

Lambdas with no trailing return type are formatted as expected.
Lambdas with a non-auto trailing return type are formatted as expected.
(!) Lambdas with an auto trailing return type are inconsistently formatted. A space is added in the capture list and line breaks are not respected.

Removing the -> auto or changing auto to int allows the lambda to be formatted as expected.

Quuxplusone / LLVMBugzillaTest