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b9c8b64947
‘ghc-exactprint’ (or perhaps lexer of GHC itself) does a fairly poor job at associating comments with elements of AST. In many cases the result is not what you'd expect. We ran into insuperable problems with that to the effect that correct comment placement were impossible. The new approach is to exploit the raw position information provided by the GHC lexer, that is, spans attached to AST elements and comments. This allowed us to place comments in output in a very precise and satisfactory fashion.
5 lines
54 B
Haskell
5 lines
54 B
Haskell
-- (1)
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import Bar -- (2)
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import Baz -- (3)
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import Foo
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