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fix tactic ehoare-if #754

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Merged
strub merged 1 commit into from
Mar 25, 2025
Merged

fix tactic ehoare-if #754

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19 changes: 13 additions & 6 deletions src/phl/ecPhlCond.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,16 @@ module Sid = EcIdent.Sid

(* -------------------------------------------------------------------- *)
module LowInternal = struct
let t_gen_cond side e tc =

let t_finalize h h1 h2 =
FApi.t_seqs [t_elim_hyp h;
t_intros_i [h1;h2];
t_apply_hyp h2]

let t_finalize_ehoare h _h1 _h2 tc =
t_apply_hyp h tc

let t_gen_cond ?(t_finalize=t_finalize) side e tc =
let hyps = FApi.tc1_hyps tc in
let fresh = ["&m"; "&m"; "_"; "_"; "_"] in
let fresh = LDecl.fresh_ids hyps fresh in
Expand All @@ -26,10 +35,7 @@ module LowInternal = struct
(EcPhlRCond.t_rcond side b (Zpr.cpos 1))
(FApi.t_seqs
[t_introm; EcPhlSkip.t_skip; t_intros_i [m2;h];
FApi.t_seqs [t_elim_hyp h;
t_intros_i [h1;h2];
t_apply_hyp h2];
t_simplify])
t_finalize h h1 h2; t_simplify])
tc
in
FApi.t_seqsub
Expand All @@ -47,7 +53,8 @@ let t_hoare_cond tc =
let t_ehoare_cond tc =
let hs = tc1_as_ehoareS tc in
let (e,_,_) = fst (tc1_first_if tc hs.ehs_s) in
LowInternal.t_gen_cond None (form_of_expr (EcMemory.memory hs.ehs_m) e) tc
LowInternal.t_gen_cond ~t_finalize:LowInternal.t_finalize_ehoare
None (form_of_expr (EcMemory.memory hs.ehs_m) e) tc

(* -------------------------------------------------------------------- *)
let t_bdhoare_cond tc =
Expand Down