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Conflict about Some(1|2) in 1.53 #86408
Description
hi when i use rust 1.53 version some code about pattern match below make me confused,and i think this is a bug or a problem that cannot be ignored.
let x = Some(2);
assert!(matches!(x,Some(1 | 2)));//ok x is Some(2)
assert!(matches!(Some(1),Some(1|2)));//ok
assert!(matches!(Some(2),Some(1|2)));//ok
let y = Some(1 | 2);//y is Some(3)
// assert!(matches!(Some(3),Some(1|2)));// error, Some(1|2) =>is Some(1) | Some(2) or Some(3)?
Activity
bugadani commentedon Jun 17, 2021
This isn't new at all: rust-lang/rfcs#2535 (comment)
Since
1|2already had the same ambiguoity, this has been kind of "ignored" as far as I understand, but don't quote me on the reasoning.jonas-schievink commentedon Jun 17, 2021
or-patterns do not function as binary operators. This is working as intended, so closing.