coloring: add `POSetConflictGraph:order`

to factorize the linearization

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/compiler/coloring.nit b/src/compiler/coloring.nit
index b2f4837..4746bc4 100644 (file)
--- a/src/compiler/coloring.nit
+++ b/src/compiler/coloring.nit
@@ -47,11 +47,15 @@ class POSetConflictGraph[E: Object]
 
        var poset: POSet[E]
 
+       # The linearisation order to visit elements in the poset
+       var order: Array[E] is noinit
+
        init do
                extract_core
                extract_border
                extract_crown
                compute_conflicts
+               order = poset.linearize(poset)
        end
 
        # Compute the set of elements forming the core of the poset hierarchy.