Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2017-10-09T20:38:33+00:00 2017-10-09T20:38:33+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2017-10-09T20:38:33+00:00 urn:sha1:06b2192aa2bb6698c863388c5d085ba5b1f28374 * Preprocessor: fix `undef` and redefinition The logic for `undef` directives was failing to suppress macro expansion when reading the name to un-define, and so it wasn't actually working at all. We didn't notice this because we didn't have a test case, and users hadn't tried it. The logic for `define` had a similar bug, which meant that any attempt to define an already-defined macro would fail with a cryptic error, rather than raising the intended warning. Test cases have been added for both issues, along with the fixes. * fixup: add expected output for tests added