diff options
Diffstat (limited to 'plugins/ssr/ssrelim.ml')
| -rw-r--r-- | plugins/ssr/ssrelim.ml | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/plugins/ssr/ssrelim.ml b/plugins/ssr/ssrelim.ml index 5782a7621..a5d44d925 100644 --- a/plugins/ssr/ssrelim.ml +++ b/plugins/ssr/ssrelim.ml @@ -97,20 +97,18 @@ let subgoals_tys sigma (relctx, concl) = * generalize the equality in case eqid is not None * 4. build the tactic handle intructions and clears as required in ipats and * by eqid *) -let ssrelim ?(ind=ref None) ?(is_case=false) ?ist deps what ?elim eqid elim_intro_tac gl = +let ssrelim ?(ind=ref None) ?(is_case=false) deps what ?elim eqid elim_intro_tac gl = (* some sanity checks *) let oc, orig_clr, occ, c_gen, gl = match what with | `EConstr(_,_,t) when EConstr.isEvar (project gl) t -> anomaly "elim called on a constr evar" - | `EGen _ when ist = None -> - anomaly "no ist and non simple elimination" | `EGen (_, g) when elim = None && is_wildcard g -> errorstrm Pp.(str"Indeterminate pattern and no eliminator") | `EGen ((Some clr,occ), g) when is_wildcard g -> None, clr, occ, None, gl | `EGen ((None, occ), g) when is_wildcard g -> None,[],occ,None,gl | `EGen ((_, occ), p as gen) -> - let _, c, clr,gl = pf_interp_gen (Option.get ist) gl true gen in + let _, c, clr,gl = pf_interp_gen gl true gen in Some c, clr, occ, Some p,gl | `EConstr (clr, occ, c) -> Some c, clr, occ, None,gl in let orig_gl, concl, env = gl, pf_concl gl, pf_env gl in @@ -160,7 +158,7 @@ let ssrelim ?(ind=ref None) ?(is_case=false) ?ist deps what ?elim eqid elim_intr else let c = Option.get oc in let gl, c_ty = pfe_type_of gl c in let pc = match c_gen with - | Some p -> interp_cpattern (Option.get ist) orig_gl p None + | Some p -> interp_cpattern orig_gl p None | _ -> mkTpat gl c in Some(c, c_ty, pc), gl in cty, elim, elimty, elim_args, n_elim_args, elim_is_dep, is_rec, pred, gl @@ -194,7 +192,7 @@ let ssrelim ?(ind=ref None) ?(is_case=false) ?ist deps what ?elim eqid elim_intr pf_saturate ~beta:is_case gl elim ~ty:elimty n_elim_args in let pred = List.assoc pred_id elim_args in let pc = match n_c_args, c_gen with - | 0, Some p -> interp_cpattern (Option.get ist) orig_gl p None + | 0, Some p -> interp_cpattern orig_gl p None | _ -> mkTpat gl c in let cty = Some (c, c_ty, pc) in let elimty = Reductionops.whd_all env (project gl) elimty in @@ -252,8 +250,7 @@ let ssrelim ?(ind=ref None) ?(is_case=false) ?ist deps what ?elim eqid elim_intr let rec loop patterns clr i = function | [],[] -> patterns, clr, gl | ((oclr, occ), t):: deps, inf_t :: inf_deps -> - let ist = match ist with Some x -> x | None -> assert false in - let p = interp_cpattern ist orig_gl t None in + let p = interp_cpattern orig_gl t None in let clr_t = interp_clr (project gl) (oclr,(tag_of_cpattern t,EConstr.of_constr (fst (redex_of_pattern env p)))) in (* if we are the index for the equation we do not clear *) @@ -374,12 +371,14 @@ let ssrelim ?(ind=ref None) ?(is_case=false) ?ist deps what ?elim eqid elim_intr (* the elim tactic, with the eliminator and the predicated we computed *) let elim = project gl, elim in let elim_tac gl = - Tacticals.tclTHENLIST [refine_with ~with_evars:false elim; cleartac clr] gl in - Tacticals.tclTHENLIST [gen_eq_tac; elim_intro_tac ?ist what eqid elim_tac is_rec clr] orig_gl + Tacticals.tclTHENLIST [refine_with ~with_evars:false elim; old_cleartac clr] gl in + Tacticals.tclTHENLIST [gen_eq_tac; elim_intro_tac what eqid elim_tac is_rec clr] orig_gl let no_intro ?ist what eqid elim_tac is_rec clr = elim_tac -let elimtac x = ssrelim ~is_case:false [] (`EConstr ([],None,x)) None no_intro +let elimtac x = + Proofview.V82.tactic ~nf_evars:false + (ssrelim ~is_case:false [] (`EConstr ([],None,x)) None no_intro) let casetac x = ssrelim ~is_case:true [] (`EConstr ([],None,x)) None no_intro let pf_nb_prod gl = nb_prod (project gl) (pf_concl gl) @@ -436,6 +435,9 @@ let perform_injection c gl = let injtac = Tacticals.tclTHEN (introid id) (injectidl2rtac id id_with_ebind) in Tacticals.tclTHENLAST (Proofview.V82.of_tactic (Tactics.apply (EConstr.compose_lam dc cl1))) injtac gl -let ssrscasetac force_inj c gl = - if force_inj || is_injection_case c gl then perform_injection c gl - else casetac c gl +let ssrscase_or_inj_tac c = Proofview.V82.tactic ~nf_evars:false (fun gl -> + if is_injection_case c gl then perform_injection c gl + else casetac c gl) + +let ssrscasetac c = + Proofview.V82.tactic ~nf_evars:false (fun gl -> casetac c gl) |