From 3ef7797ef6fc605dfafb32523261fe1b023aeecb Mon Sep 17 00:00:00 2001
From: Samuel Mimram <smimram@debian.org>
Date: Fri, 28 Apr 2006 14:59:16 +0000
Subject: Imported Upstream version 8.0pl3+8.1alpha

---
 test-suite/success/refine.v | 68 ++++++++++++++++++++++++++++++++++-----------
 1 file changed, 52 insertions(+), 16 deletions(-)

(limited to 'test-suite/success/refine.v')

diff --git a/test-suite/success/refine.v b/test-suite/success/refine.v
index ad4eed5a..b61cf275 100644
--- a/test-suite/success/refine.v
+++ b/test-suite/success/refine.v
@@ -1,30 +1,66 @@
 
 (* Refine and let-in's *)
 
-Goal (EX x:nat | x=O).
-Refine let y = (plus O O) in ?.
-Exists y; Auto.
+Goal exists x : nat, x = 0.
+ refine (let y := 0 + 0 in _).
+exists y; auto.
 Save test1.
 
-Goal (EX x:nat | x=O).
-Refine let y = (plus O O) in (ex_intro ? ? (plus y y) ?).  
-Auto.
+Goal exists x : nat, x = 0.
+ refine (let y := 0 + 0 in ex_intro _ (y + y) _).  
+auto.
 Save test2.
 
 Goal nat.
-Refine let y = O in (plus O ?).
-Exact (S O).
+ refine (let y := 0 in 0 + _).
+exact 1.
 Save test3.
 
 (* Example submitted by Yves on coqdev *)
 
-Require PolyList.
+Require Import List.
 
-Goal (l:(list nat))l=l.
+Goal forall l : list nat, l = l.
 Proof.
-Refine [l]<[l]l=l>
-       Cases l of
-       | nil => ?
-       | (cons O l0) => ?
-       | (cons (S _) l0) => ?
-       end.
+ refine
+ (fun l =>
+  match l return (l = l) with
+  | nil => _
+  | O :: l0 => _
+  | S _ :: l0 => _
+  end).
+Abort.
+
+(* Submitted by Roland Zumkeller (bug #888) *)
+
+(* The Fix and CoFix rules expect a subgoal even for closed components of the
+   (co-)fixpoint *)
+
+Goal nat -> nat.
+ refine (fix f (n : nat) : nat := S _
+         with pred (n : nat) : nat := n
+         for f).
+exact 0.
+Qed.
+
+(* Submitted by Roland Zumkeller (bug #889) *)
+
+(* The types of metas were in metamap and they were not updated when
+   passing through a binder *)
+
+Goal forall n : nat, nat -> n = 0.
+ refine
+ (fun n => fix f (i : nat) : n = 0 := match i with
+                                      | O => _
+                                      | S _ => _
+                                      end).
+Abort.
+
+(* Submitted by Roland Zumkeller (bug #931) *)
+(* Don't turn dependent evar into metas *)
+
+Goal (forall n : nat, n = 0 -> Prop) -> Prop.
+intro P.
+ refine (P _ _).
+reflexivity.
+Abort.
-- 
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