model: rename `as_notnullable` to `undecorate`

[nit.git] / src / metrics / rta_metrics.nit

diff --git a/src/metrics/rta_metrics.nit b/src/metrics/rta_metrics.nit
index 1224513..00f9d02 100644 (file)
--- a/src/metrics/rta_metrics.nit
+++ b/src/metrics/rta_metrics.nit
@@ -17,12 +17,10 @@
 # Metrics from RTA
 module rta_metrics
 
-import modelbuilder
 private import rapid_type_analysis
-private import metrics_base
+import metrics_base
 import mmodules_metrics
 import mclasses_metrics
-import frontend
 
 redef class ToolContext
        var rta_metrics_phase: Phase = new RTAMetricsPhase(self, null)
@@ -376,7 +374,7 @@ redef class RapidTypeAnalysis
                super
                tnlc.values.inc(mtype)
 
-               mtype = mtype.as_notnullable
+               mtype = mtype.undecorate
                if mtype isa MClassType then
                        cnlc.values.inc(mtype.mclass)
                end
@@ -387,7 +385,7 @@ end
 
 redef class MType
        private fun signature_depth: Int do
-               var mtype = self.as_notnullable
+               var mtype = self.undecorate
                if not mtype isa MGenericType then return 0
 
                var depth = 0