Add note about pattern synonyms

2019-10-13 16:50:54 -07:00 · 2019-10-13 16:50:54 -07:00 · 5a01b12d9b
commit 5a01b12d9b
parent 7c75f9b2a8
1 changed files with 1 additions and 0 deletions
--- a/TODO.md
+++ b/TODO.md
@ -8,6 +8,7 @@ DONE -experiment with storing metadata via ItemIds on AST nodes (cf. https://rus
 - standardize on an error type that isn't String
 -implement a visitor pattern for the use of scope_resolver
  - maybe implement this twice: 1) the value-returning, no-default one in the haoyi blogpost,
+  -look at https://gitlab.haskell.org/ghc/ghc/wikis/pattern-synonyms
                                2) the non-value-returning, default one like in rustc (cf. https://github.com/rust-unofficial/patterns/blob/master/patterns/visitor.md)

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