Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2021-02-12T19:31:56+00:00 2021-02-12T19:31:56+00:00 jsmall-nvidia jsmall@nvidia.com 2021-02-12T19:31:56+00:00 urn:sha1:369279e91dde1b056d8d0e3bb83e7ba3f96321af * #include an absolute path didn't work - because paths were taken to always be relative. * WIP: First pass in supporting output of line error information. * Add support for lexing to better be able to indicate SourceLocation information. * Fix lexer usage in DiagnosticSink in C++ extractor. * Update diagnostics tests to have line location info. * Fixed test expected output that now have source location information in them. * Better handling of tab. * Fix test expected results for tabbing change. * DiagnosticLexer -> DiagnosticSink::SourceLocationLexer Added line continuation tests. * Fix typo. * Added String::appendRepeatedChar * Change to rerun tests. Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com> 2020-02-25T16:12:16+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2020-02-25T16:12:16+00:00 urn:sha1:6308a1224672944220a1fee34ae22f70212703a0 This arose when a user tried to specialize the DXR 1.1 `RayQuery` type to a local variable: ```hlsl RAY_FLAG rayFlags = RAY_FLAG_CULL_FRONT_FACING_TRIANGLES | RAY_FLAG_CULL_NON_OPAQUE; RayQuery<rayFlags> query; ``` In this case, we issued an error around `rayFlags` not being a constant as expected, but then we also crashes later on in checking because the `DeclRef` that was being used for the type had a null pointer for the generic argument corresponding to `rayFlags`. The main fix here was thus to add an `ErrorIntVal` case that can be used to represent something that should be an `IntVal` but where there was some kind of error in the input code so that the actual value isn't known to the compiler. A secondary fix here is that we were issuing error messages about expecting a constant for a parameter like `rayFlags` there *twice*, and one of those times was during the `JustChecking` part of overload resolution (when we are not supposed to emit any diagnostics). I fixed that up by allowing the `DiagnosticSink` to be used to be passed down explicitly (and allowing it to be null), while also leaving behind overloaded functions with the old signatures so that all the existing logic can continue to work unmodified.