From 55a5aaa22e9dd92ff1c6aba599b878c384c1a66b Mon Sep 17 00:00:00 2001
From: Enrico Tassi
Date: Mon, 9 Mar 2015 10:43:41 +0100
Subject: Add commands to trace the matching algorithm

---
 mathcomp/ssrtest/explain_match.v | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 mathcomp/ssrtest/explain_match.v

(limited to 'mathcomp/ssrtest')

diff --git a/mathcomp/ssrtest/explain_match.v b/mathcomp/ssrtest/explain_match.v
new file mode 100644
index 0000000..b79453b
--- /dev/null
+++ b/mathcomp/ssrtest/explain_match.v
@@ -0,0 +1,12 @@
+Require Import ssreflect ssrbool ssrnat.
+
+Definition addnAC := (addnA, addnC).
+
+Lemma test x y z : x + y + z =  x + y.
+
+ssrinstancesoftpat (_ + _).
+ssrinstancesofruleL2R addnC.
+ssrinstancesofruleR2L addnA.
+ssrinstancesofruleR2L addnAC.
+Fail ssrinstancesoftpat (_ + _ in RHS). (* Not implemented *)
+Admitted.
\ No newline at end of file
-- 
cgit v1.2.3


From 4d0f111956307c5a134db701fe27f01f8ac50e9d Mon Sep 17 00:00:00 2001
From: Enrico Tassi
Date: Thu, 10 Sep 2015 11:44:11 +0200
Subject: fix: elim/v handles eliminator from Derive Inversion (issue #2)

Also:
- fix elim trying to saturate too much and not raising the expected exn
- fix fill_occ_pattern when occ is {-}, it used to lose the
  instantiation obtained by matching the term
---
 mathcomp/ssrtest/derive_inversion.v | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 mathcomp/ssrtest/derive_inversion.v

(limited to 'mathcomp/ssrtest')

diff --git a/mathcomp/ssrtest/derive_inversion.v b/mathcomp/ssrtest/derive_inversion.v
new file mode 100644
index 0000000..71257d8
--- /dev/null
+++ b/mathcomp/ssrtest/derive_inversion.v
@@ -0,0 +1,19 @@
+Require Import ssreflect ssrbool.
+
+Set Implicit Arguments.
+
+  Inductive wf T : bool -> option T -> Type :=
+  | wf_f : wf false None
+  | wf_t : forall x, wf true (Some x).
+
+  Derive Inversion wf_inv with (forall T b (o : option T), wf b o) Sort Prop.
+
+  Lemma Problem T b (o : option T) :
+    wf b o ->
+    match b with
+    | true  => exists x, o = Some x
+    | false => o = None
+    end.
+  Proof.
+  by case: b; elim/wf_inv=>//;case: o=>// a *; exists a.
+  Qed.
-- 
cgit v1.2.3


From c570d3d8c64d2202b00de7583924515ac1ab54e2 Mon Sep 17 00:00:00 2001
From: Enrico Tassi
Date: Thu, 3 Dec 2015 09:59:11 +0100
Subject: fix: autogen + abstract variables clash

---
 mathcomp/ssrtest/abstract_var2.v | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 mathcomp/ssrtest/abstract_var2.v

(limited to 'mathcomp/ssrtest')

diff --git a/mathcomp/ssrtest/abstract_var2.v b/mathcomp/ssrtest/abstract_var2.v
new file mode 100644
index 0000000..5372c5c
--- /dev/null
+++ b/mathcomp/ssrtest/abstract_var2.v
@@ -0,0 +1,16 @@
+Require Import ssreflect.
+
+Set Implicit Arguments.
+
+Axiom P : nat -> nat -> Prop.
+
+Axiom tr :
+  forall x y z, P x y -> P y z -> P x z.
+
+Lemma test a b c : P a c -> P a b.
+Proof.
+intro H.
+Fail have [: s1 s2] H1 : P a b := @tr _ _ _ s1 s2.
+have [: w s1 s2] H1 : P a b := @tr _ w _ s1 s2.
+Abort.
+
-- 
cgit v1.2.3