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Support parenthesized paths Foo(A,B) -> C that expand to Foo<(A,B),C>. These paths also bind anonymous regions (or will, once HRTB is fully working).

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Fixes #18423.
This commit is contained in:
Niko Matsakis 2014-11-03 21:52:52 -05:00
parent 4e352892c8
commit 221edbae38
38 changed files with 841 additions and 264 deletions
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9
src/libsyntax/ext/build.rs
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@ -313,14 +313,15 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
.map(|ident| {
ast::PathSegment {
identifier: ident,
lifetimes: Vec::new(),
types: OwnedSlice::empty(),
parameters: ast::PathParameters::none(),
}
}).collect();
segments.push(ast::PathSegment {
identifier: last_identifier,
lifetimes: lifetimes,
types: OwnedSlice::from_vec(types),
parameters: ast::AngleBracketedParameters(ast::AngleBracketedParameterData {
lifetimes: lifetimes,
types: OwnedSlice::from_vec(types),
})
});
ast::Path {
span: sp,