From a8b3c907cb2d6da16bdeea10b943552dc9efc0ed Mon Sep 17 00:00:00 2001
From: Emilio Jesus Gallego Arias
Date: Wed, 5 Jun 2019 17:48:46 +0200
Subject: [proof] Move proofs that have an associated constant to `Lemmas`

The main idea of this PR is to distinguish the types of "proof object"
`Proof_global.t` and the type of "proof object associated to a
constant, the new `Lemmas.t`.

This way, we can move the terminator setup to the higher layer in
`vernac`, which is the one that really knows about constants, paving
the way for further simplification and in particular for a unified
handling of constant saving by removal of the control inversion here.

Terminators are now internal to `Lemmas`, as it is the only part of
the code applying them.

As a consequence, proof nesting is now handled by `Lemmas`, and
`Proof_global.t` is just a single `Proof.t` plus some environmental
meta-data.

We are also enable considerable simplification in a future PR, as this
patch makes `Proof.t` and `Proof_global.t` essentially the same, so we
should expect to handle them under a unified interface.
---
 plugins/ltac/rewrite.mli | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'plugins/ltac/rewrite.mli')

diff --git a/plugins/ltac/rewrite.mli b/plugins/ltac/rewrite.mli
index 3ef33c6dc9..a5c3782b30 100644
--- a/plugins/ltac/rewrite.mli
+++ b/plugins/ltac/rewrite.mli
@@ -101,16 +101,16 @@ val add_setoid
   -> Id.t
   -> unit
 
-val add_morphism_interactive : rewrite_attributes -> constr_expr -> Id.t -> Proof_global.t
+val add_morphism_interactive : rewrite_attributes -> constr_expr -> Id.t -> Lemmas.t
 val add_morphism_as_parameter : rewrite_attributes -> constr_expr -> Id.t -> unit
 
 val add_morphism
-  : rewrite_attributes
+  :  rewrite_attributes
   -> local_binder_expr list
   -> constr_expr
   -> constr_expr
   -> Id.t
-  -> Proof_global.t
+  -> Lemmas.t
 
 val get_reflexive_proof : env -> evar_map -> constr -> constr -> evar_map * constr
 
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