0.5 comments #39
0.5 comments #39
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src/syntax/parser.rs
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| fn get_comment<I>(ps: &mut ParserStream<I>) -> Result<ast::Comment> | ||
| #[derive(PartialEq)] | ||
| enum CommentLevel { | ||
| Comment, |
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You should be able to use the Comment = 0, syntax in this enum to avoid the match a few lines below. I think you'll need to add Copy to the enum though to make it work.
src/syntax/parser.rs
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| @@ -152,6 +153,13 @@ where | |||
| { | |||
| let id = get_identifier(ps, true)?; | |||
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| if comment.is_some() { | |||
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Is this outer is_some needed here? It looks like the if let below it serves the same function (and more).
zbraniecki
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src/syntax/parser.rs.orig
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| @@ -0,0 +1,721 @@ | |||
| pub use super::errors::ParserError; | |||
src/syntax/parser.rs
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| @@ -152,6 +143,11 @@ where | |||
| { | |||
| let id = get_private_identifier(ps)?; | |||
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| if let Some(ast::Comment::Comment { .. }) = comment { | |||
| } else if comment.is_some() { | |||
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I don't understand this code. It looks like both if let and else if test if comment is a Some?
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heh, yeah, it's awkward. What I'm trying to test is if the variant of the Comment passed to get_message is actually ast::Comment::Comment and not GroupComment or ResourceComment.
If it's not, then I'm verifying that it's None.
Any ideas how to write it better? :)
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Ahh, I see now, thanks. I might have wrongly suggested to use if let here then. Maybe a match like this?
match comment {
Some(ast::Comment::GroupComment { .. }) => error!(),
Some(ast::Comment::ResourceComment { .. }) => error!(),
_ => ()
}In the future, rust-lang/rfcs#935 will help.
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Built on top of the private msg PR. Need to add tests, but hopefully a good start :)