bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

missed one reference to "best"

Browse source
This commit is contained in:
Niko Matsakis 2015-08-21 14:45:25 -04:00
parent 1630c7912f
commit 63eedfcf53
1 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/librustc_data_structures/transitive_relation.rs
View file

@ -93,10 +93,11 @@ impl<T:Debug+PartialEq> TransitiveRelation<T> {
}
}
/// Picks what I am referring to as the "best" upper-bound for `a`
/// and `b`. This is usually the least upper bound, but in cases where
/// there is no single least upper bound, it is the "mutual immediate postdominator",
/// if you imagine a graph where `a < b` means `a -> b`.
/// Picks what I am referring to as the "postdominating"
/// upper-bound for `a` and `b`. This is usually the least upper
/// bound, but in cases where there is no single least upper
/// bound, it is the "mutual immediate postdominator", if you
/// imagine a graph where `a < b` means `a -> b`.
///
/// This function is needed because region inference currently
/// requires that we produce a single "UB", and there is no best