Output the context of a type error with syntax highlighting #1556
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sjakobi
commented
Nov 19, 2019
| @@ -4252,21 +4252,23 @@ data TypeError s a = TypeError | |||
| } | |||
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| instance (Eq a, Pretty s, Pretty a) => Show (TypeError s a) where | |||
| show = Pretty.renderString . Dhall.Pretty.layout . Pretty.pretty | |||
| show = Pretty.renderString . Dhall.Pretty.layout . prettyTypeError | |||
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Sorry, this is actually unrelated – it just allows us to skip unAnnotate which can be expensive for large Docs (which isn't the case here).
dhall/src/Dhall/TypeCheck.hs
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| ) | ||
| where | ||
| prettyKV (key, val) = | ||
| pretty key <> " : " <> Dhall.Util.snipDoc (Dhall.Pretty.prettyExpr val) |
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The change from pretty to prettyExpr is the key bit.
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