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clarify diagonal arrows

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This commit is contained in:
Niko Matsakis 2015-08-21 10:54:24 -04:00
parent d5b679b23d
commit 36809bf260
1 changed files with 3 additions and 0 deletions
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3
src/librustc_data_structures/transitive_relation.rs
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@ -112,6 +112,7 @@ impl<T:Debug+PartialEq> TransitiveRelation<T> {
/// b -> b1 ---+
///
/// // returns Some(x), which is not LUB (there is none)
/// // diagonal edges run left-to-right
/// a -> a1 -> x
/// \/ ^
/// /\ |
@ -400,6 +401,7 @@ fn mubs_best_choice_scc() {
#[test]
fn bub_crisscross() {
// diagonal edges run left-to-right
// a -> a1 -> x
// \/ ^
// /\ |
@ -419,6 +421,7 @@ fn bub_crisscross() {
#[test]
fn bub_crisscross_more() {
// diagonal edges run left-to-right
// a -> a1 -> a2 -> a3 -> x
// \/ \/ ^
// /\ /\ |