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better code comments

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This commit is contained in:
Sébastien Besnier 2020-11-17 16:22:15 +01:00
parent 6f9097da56
commit f9666d6efe
3 changed files with 45 additions and 9 deletions
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8
compiler/parse/src/parser.rs
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@ -1193,14 +1193,6 @@ macro_rules! record {
// We specifically allow space characters inside here, so that
// `{ }` can be successfully parsed as an empty record, and then
// changed by the formatter back into `{}`.
//
// We don't allow newlines or comments in the middle of empty
// roc_collections because those are normally stored in an Expr,
// and there's no Expr in which to store them in an empty collection!
//
// We could change the AST to add extra storage specifically to
// support empty literals containing newlines or comments, but this
// does not seem worth even the tiniest regression in compiler performance.
zero_or_more!($crate::parser::ascii_char(b' ')),
skip_second!(
and!(