diff options
author | Enrico Tassi <Enrico.Tassi@inria.fr> | 2015-10-28 16:46:42 +0100 |
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committer | Maxime Dénès <mail@maximedenes.fr> | 2015-10-28 17:31:53 +0100 |
commit | 908dcd613b12645f3b62bf44c2696b80a0b16940 (patch) | |
tree | e1f6d5b1479f39ff634a47b2fa637e8aab4a0d13 /plugins/funind/functional_principles_types.mli | |
parent | 0a1b046d37761fe47435d5041bb5031e3f7d6613 (diff) |
Avoid type checking private_constants (side_eff) again during Qed (#4357).
Side effects are now an opaque data type, called private_constant, you can
only obtain from safe_typing. When add_constant is called on a
definition_entry that contains private constants, they are either
- inlined in the main proof term but not re-checked
- declared globally without re-checking them
As a safety measure, the opaque data type contains a pointer to the
revstruct (an internal field of safe_env that changes every time a new
constant is added), and such pointer is compared with the current value
store in safe_env when the private_constant is inlined. Only when the
comparison is successful the private_constant is not re-checked. Otherwise
else it is. In short, we accept into the kernel private constant only
when they arrive in the very same order and on top of the very same env
they arrived when we fist checked them.
Note: private_constants produced by workers never pass the safety
measure (the revstruct pointer is an Ephemeron). Sending back the
entire revstruct is possible but: 1. we lack a way to quickly compare
two revstructs, 2. it can be large.
Diffstat (limited to 'plugins/funind/functional_principles_types.mli')
-rw-r--r-- | plugins/funind/functional_principles_types.mli | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/plugins/funind/functional_principles_types.mli b/plugins/funind/functional_principles_types.mli index f6e5578d2..bc082f073 100644 --- a/plugins/funind/functional_principles_types.mli +++ b/plugins/funind/functional_principles_types.mli @@ -1,3 +1,11 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + open Names open Term open Misctypes @@ -29,7 +37,7 @@ val compute_new_princ_type_from_rel : constr array -> sorts array -> exception No_graph_found val make_scheme : Evd.evar_map ref -> - (pconstant*glob_sort) list -> Entries.definition_entry list + (pconstant*glob_sort) list -> Safe_typing.private_constants Entries.definition_entry list val build_scheme : (Id.t*Libnames.reference*glob_sort) list -> unit val build_case_scheme : (Id.t*Libnames.reference*glob_sort) -> unit |