From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Thu, 17 Nov 2011 23:14:39 +0000 (+0000)
Subject: collapse applications with a Match as head while indexing
X-Git-Tag: make_still_working~2095
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=7c8bd0b1b479f162ba63e0e2eeb27bc2e7d97123;p=helm.git

collapse applications with a Match as head while indexing
---

diff --git a/matitaB/components/ng_refiner/nDiscriminationTree.ml b/matitaB/components/ng_refiner/nDiscriminationTree.ml
index 50c3bd208..531f76428 100644
--- a/matitaB/components/ng_refiner/nDiscriminationTree.ml
+++ b/matitaB/components/ng_refiner/nDiscriminationTree.ml
@@ -65,6 +65,7 @@ let ppelem = function
 let path_string_of t =
   let rec aux arity depth = function
     | NCic.Appl ((NCic.Meta _|NCic.Implicit _)::_) -> [Variable]
+    | NCic.Appl (NCic.Match _::_) -> [Dead]
     | NCic.Appl (NCic.Lambda _ :: _) -> [Variable] (* maybe we should b-reduce *)
     | NCic.Appl [] -> assert false
     | NCic.Appl l when depth > 10 || List.length l > 50 -> [Variable]