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-rw-r--r--plugins/ssr/ssrparser.ml419
1 files changed, 14 insertions, 5 deletions
diff --git a/plugins/ssr/ssrparser.ml4 b/plugins/ssr/ssrparser.ml4
index 7a1d06fdc..347a1e4e2 100644
--- a/plugins/ssr/ssrparser.ml4
+++ b/plugins/ssr/ssrparser.ml4
@@ -412,8 +412,8 @@ let pr_docc = function
let pr_ssrdocc _ _ _ = pr_docc
ARGUMENT EXTEND ssrdocc TYPED AS ssrclear option * ssrocc PRINTED BY pr_ssrdocc
-| [ "{" ne_ssrhyp_list(clr) "}" ] -> [ mkclr clr ]
| [ "{" ssrocc(occ) "}" ] -> [ mkocc occ ]
+| [ "{" ssrhyp_list(clr) "}" ] -> [ mkclr clr ]
END
(* Old kinds of terms *)
@@ -578,7 +578,7 @@ let rec map_ipat map_id map_ssrhyp map_ast_closure_term = function
| IPatCase iorpat -> IPatCase (List.map (List.map (map_ipat map_id map_ssrhyp map_ast_closure_term)) iorpat)
| IPatDispatch iorpat -> IPatDispatch (List.map (List.map (map_ipat map_id map_ssrhyp map_ast_closure_term)) iorpat)
| IPatInj iorpat -> IPatInj (List.map (List.map (map_ipat map_id map_ssrhyp map_ast_closure_term)) iorpat)
- | IPatView v -> IPatView (List.map map_ast_closure_term v)
+ | IPatView (clr,v) -> IPatView (clr,List.map map_ast_closure_term v)
| IPatTac _ -> assert false (*internal usage only *)
let wit_ssripatrep = add_genarg "ssripatrep" pr_ipat
@@ -646,7 +646,7 @@ let interp_ipat ist gl =
| IPatInj iorpat -> IPatInj (List.map (List.map interp) iorpat)
| IPatAbstractVars l ->
IPatAbstractVars (List.map get_intro_id (List.map (interp_introid ist gl) l))
- | IPatView l -> IPatView (List.map (fun x -> snd(interp_ast_closure_term ist
+ | IPatView (clr,l) -> IPatView (clr,List.map (fun x -> snd(interp_ast_closure_term ist
gl x)) l)
| (IPatSimpl _ | IPatAnon _ | IPatRewrite _ | IPatNoop) as x -> x
| IPatTac _ -> assert false (*internal usage only *)
@@ -683,11 +683,17 @@ ARGUMENT EXTEND ssripat TYPED AS ssripatrep list PRINTED BY pr_ssripats
(* TODO | [ "+" ] -> [ [IPatAnon Temporary] ] *)
| [ ssrsimpl_ne(sim) ] -> [ [IPatSimpl sim] ]
| [ ssrdocc(occ) "->" ] -> [ match occ with
+ | Some [], _ -> CErrors.user_err ~loc (str"occ_switch expected")
| None, occ -> [IPatRewrite (occ, L2R)]
| Some clr, _ -> [IPatClear clr; IPatRewrite (allocc, L2R)]]
| [ ssrdocc(occ) "<-" ] -> [ match occ with
+ | Some [], _ -> CErrors.user_err ~loc (str"occ_switch expected")
| None, occ -> [IPatRewrite (occ, R2L)]
| Some clr, _ -> [IPatClear clr; IPatRewrite (allocc, R2L)]]
+ | [ ssrdocc(occ) ssrfwdview(v) ] -> [ match occ with
+ | Some [], _ -> [IPatView (true,v)]
+ | Some cl, _ -> check_hyps_uniq [] cl; [IPatClear cl;IPatView (false,v)]
+ | _ -> CErrors.user_err ~loc (str"Only identifiers are allowed here") ]
| [ ssrdocc(occ) ] -> [ match occ with
| Some cl, _ -> check_hyps_uniq [] cl; [IPatClear cl]
| _ -> CErrors.user_err ~loc (str"Only identifiers are allowed here")]
@@ -705,7 +711,7 @@ ARGUMENT EXTEND ssripat TYPED AS ssripatrep list PRINTED BY pr_ssripats
| [ "-/" integer(n) "/=" ] -> [ [IPatNoop;IPatSimpl(SimplCut (n,~-1))] ]
| [ "-/" integer(n) "/" integer (m) "=" ] ->
[ [IPatNoop;IPatSimpl(SimplCut(n,m))] ]
- | [ ssrfwdview(v) ] -> [ [IPatView v] ]
+ | [ ssrfwdview(v) ] -> [ [IPatView (false,v)] ]
| [ "[" ":" ident_list(idl) "]" ] -> [ [IPatAbstractVars idl] ]
| [ "[:" ident_list(idl) "]" ] -> [ [IPatAbstractVars idl] ]
END
@@ -1678,7 +1684,10 @@ let pr_gen (docc, dt) = pr_docc docc ++ pr_cpattern dt
let pr_ssrgen _ _ _ = pr_gen
ARGUMENT EXTEND ssrgen TYPED AS ssrdocc * cpattern PRINTED BY pr_ssrgen
-| [ ssrdocc(docc) cpattern(dt) ] -> [ docc, dt ]
+| [ ssrdocc(docc) cpattern(dt) ] -> [
+ match docc with
+ | Some [], _ -> CErrors.user_err ~loc (str"Clear flag {} not allowed here")
+ | _ -> docc, dt ]
| [ cpattern(dt) ] -> [ nodocc, dt ]
END