That's bizarre. Does it still happen with explicit braces?
Just to test, I tried
module Bug where {
x = 5;
y = 6;
};
and GHC rejected because of the trailing ;.
Richard
> On Jan 19, 2021, at 4:35 PM, Alan & Kim Zimmerman <alan.z...@gmail.com> wrote:
>
> I am (still) working on !2418 to bring the API Annotations into the GHC
> ParsedSource, and making good progress.
>
> I am currently making a rough port of ghc-exactprint, to ensure I can get all
> the tests around modifying the AST to work.
>
> One of the last pieces is being able to capture the spacing from the last
> token in the file to the EOF. I guess technically it is the second last
> token.
>
> Empirically (calling getTokenStream), it seems this is always ITsemi. I am
> not sure how this comes about, as the `module` parsing rule in Parser.y ends
> with body or body2, and those both finish with an actual or virtual '}'.
>
> Can I rely on the token before ITEof always being ITsemi?
>
> Alan
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