1 (* Copyright (C) 2002, HELM Team.
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4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
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26 let new_meta_of_proof ~proof:(_, metasenv, _, _) =
27 CicMkImplicit.new_meta metasenv
29 let subst_meta_in_proof proof meta term newmetasenv =
30 let uri,metasenv,bo,ty = proof in
31 let subst_in = CicMetaSubst.apply_subst [meta,term] in
33 newmetasenv @ (List.filter (function (m,_,_) -> m <> meta) metasenv)
37 (function i,canonical_context,ty ->
38 let canonical_context' =
41 Some (n,Cic.Decl s) -> Some (n,Cic.Decl (subst_in s))
42 | Some (n,Cic.Def (s,None)) -> Some (n,Cic.Def ((subst_in s),None))
44 | Some (_,Cic.Def (_,Some _)) -> assert false
47 i,canonical_context',(subst_in ty)
50 let bo' = subst_in bo in
51 let newproof = uri,metasenv'',bo',ty in
52 (newproof, metasenv'')
54 (*CSC: commento vecchio *)
55 (* refine_meta_with_brand_new_metasenv meta term subst_in newmetasenv *)
56 (* This (heavy) function must be called when a tactic can instantiate old *)
57 (* metavariables (i.e. existential variables). It substitues the metasenv *)
58 (* of the proof with the result of removing [meta] from the domain of *)
59 (* [newmetasenv]. Then it replaces Cic.Meta [meta] with [term] everywhere *)
60 (* in the current proof. Finally it applies [apply_subst_replacing] to *)
62 (*CSC: A questo punto perche' passare un bo' gia' istantiato, se tanto poi *)
63 (*CSC: ci ripasso sopra apply_subst!!! *)
64 (*CSC: Attenzione! Ora questa funzione applica anche [subst_in] a *)
65 (*CSC: [newmetasenv]. *)
66 let subst_meta_and_metasenv_in_proof proof meta subst_in newmetasenv =
67 let (uri,_,bo,ty) = proof in
68 let bo' = subst_in bo in
71 (fun metasenv_entry i ->
72 match metasenv_entry with
73 (m,canonical_context,ty) when m <> meta ->
74 let canonical_context' =
78 | Some (i,Cic.Decl t) -> Some (i,Cic.Decl (subst_in t))
79 | Some (i,Cic.Def (t,None)) ->
80 Some (i,Cic.Def ((subst_in t),None))
81 | Some (_,Cic.Def (_,Some _)) -> assert false
84 (m,canonical_context',subst_in ty)::i
88 let newproof = uri,metasenv',bo',ty in