bjoernager/rust
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Initial implementation of or patterns

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varkor 2018-10-19 15:40:07 +01:00 • committed by Dan Robertson
parent ac60ca0643
commit 1713ac4bf5
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17 changed files with 134 additions and 26 deletions
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10
src/libsyntax/ast.rs
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@ -572,9 +572,10 @@ impl Pat {
match &self.node {
PatKind::Ident(_, _, Some(p)) => p.walk(it),
PatKind::Struct(_, fields, _) => fields.iter().all(|field| field.pat.walk(it)),
PatKind::TupleStruct(_, s) | PatKind::Tuple(s) | PatKind::Slice(s) => {
s.iter().all(|p| p.walk(it))
}
PatKind::TupleStruct(_, s)
| PatKind::Tuple(s)
| PatKind::Slice(s)
| PatKind::Or(s) => s.iter().all(|p| p.walk(it)),
PatKind::Box(s) | PatKind::Ref(s, _) | PatKind::Paren(s) => s.walk(it),
PatKind::Wild
| PatKind::Rest
@ -648,6 +649,9 @@ pub enum PatKind {
/// A tuple struct/variant pattern (`Variant(x, y, .., z)`).
TupleStruct(Path, Vec<P<Pat>>),
/// An or-pattern `A | B | C`.
Or(Vec<P<Pat>>),
/// A possibly qualified path pattern.
/// Unqualified path patterns `A::B::C` can legally refer to variants, structs, constants
/// or associated constants. Qualified path patterns `<A>::B::C`/`<A as Trait>::B::C` can