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Use #[rustc_paren_sugar] as a more extensible way of deciding when

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paren sugar is legal.
This commit is contained in:
Niko Matsakis 2015-01-26 14:39:58 -05:00
parent 80c793c1d3
commit a962bdb3da
9 changed files with 41 additions and 7 deletions
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7
src/librustc/metadata/decoder.rs
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@ -371,6 +371,11 @@ fn parse_unsafety(item_doc: rbml::Doc) -> ast::Unsafety {
}
}
fn parse_paren_sugar(item_doc: rbml::Doc) -> bool {
let paren_sugar_doc = reader::get_doc(item_doc, tag_paren_sugar);
reader::doc_as_u8(paren_sugar_doc) != 0
}
fn parse_polarity(item_doc: rbml::Doc) -> ast::ImplPolarity {
let polarity_doc = reader::get_doc(item_doc, tag_polarity);
if reader::doc_as_u8(polarity_doc) != 0 {
@ -400,8 +405,10 @@ pub fn get_trait_def<'tcx>(cdata: Cmd,
let bounds = trait_def_bounds(item_doc, tcx, cdata);
let unsafety = parse_unsafety(item_doc);
let associated_type_names = parse_associated_type_names(item_doc);
let paren_sugar = parse_paren_sugar(item_doc);
ty::TraitDef {
paren_sugar: paren_sugar,
unsafety: unsafety,
generics: generics,
bounds: bounds,