From f5ab2e37b0609d8edb8d65dfae49741442a90657 Mon Sep 17 00:00:00 2001 From: letouzey Date: Tue, 2 Apr 2013 22:08:44 +0000 Subject: Revised infrastructure for lazy loading of opaque proofs Get rid of the LightenLibrary hack : no more last-minute collect of opaque terms and Obj.magic tricks. Instead, we make coqc accumulate the opaque terms as soon as constant_bodies are created outside sections. In these cases, the opaque terms are placed in a special table, and some (DirPath.t * int) are used as indexes in constant_body. In an interactive session, the local opaque terms stay directly stored in the constant_body. The structure of .vo file stays similar : magic number, regular library structure, digest of the first part, array of opaque terms. In addition, we now have a final checksum for checking the integrity of the whole .vo file. The other difference is that lazy_constr aren't changed into int indexes in .vo files, but are now coded as (substitution list * DirPath.t * int). In particular this approach allows to refer to opaque terms from another library. This (and accumulating substitutions in lazy_constr) seems to greatly help decreasing the size of opaque tables : -20% of vo size on the standard library :-). The compilation times are slightly better, but that can be statistic noise. The -force-load-proofs isn't active anymore : it behaves now just like -lazy-load-proofs. The -dont-load-proofs mode has slightly changed : opaque terms aren't seen as axioms anymore, but accessing their bodies will raise an error. Btw, API change : Declareops.body_of_constant now produces directly a constr option instead of a constr_substituted option git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16382 85f007b7-540e-0410-9357-904b9bb8a0f7 --- kernel/declareops.mli | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'kernel/declareops.mli') diff --git a/kernel/declareops.mli b/kernel/declareops.mli index 1616e4639..c4d67ba52 100644 --- a/kernel/declareops.mli +++ b/kernel/declareops.mli @@ -8,7 +8,6 @@ open Declarations open Mod_subst -open Lazyconstr (** Operations concerning types in [Declarations] : [constant_body], [mutual_inductive_body], [module_body] ... *) @@ -18,13 +17,14 @@ open Lazyconstr val subst_const_def : substitution -> constant_def -> constant_def val subst_const_body : substitution -> constant_body -> constant_body -(** Is there a actual body in const_body or const_body_opaque ? *) +(** Is there a actual body in const_body ? *) val constant_has_body : constant_body -> bool -(** Accessing const_body_opaque or const_body *) +(** Accessing const_body, forcing access to opaque proof term if needed. + Only use this function if you know what you're doing. *) -val body_of_constant : constant_body -> constr_substituted option +val body_of_constant : constant_body -> Term.constr option val is_opaque : constant_body -> bool -- cgit v1.2.3