diff options
| author |  herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2011-06-18 20:35:32 +0000 |
|---|---|---|
| committer | herbelin <herbelin@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2011-06-18 20:35:32 +0000 |
| commit | 32e18eb2ec0d44e4265f44d2f3f51daa7d67e9c0 (patch) | |
| tree | 7571347858ea69b085ba522ccebf78301b8c1ae1 /tactics/equality.mli | |
| parent | 9d7499dcd4440aca458cb190ed108ae9b3adff17 (diff) | |
Relaxed the constraint introduced in r14190 that froze the existing
evars when rewriting. Use it for autorewrite and subst. Accept evars
instantiation in multi_rewrite so that rewrite alone remains
compatible (it is used in contribs, e.g. Godel, in places where it
does not seem absurd to allow it), but there are no good reason for
it. Comments welcome.
+ addition of some tests for rewriting (one being related to commit 14217)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14222 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'tactics/equality.mli')
| -rw-r--r-- | tactics/equality.mli | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/tactics/equality.mli b/tactics/equality.mli index 2cf4b3027..790594699 100644 --- a/tactics/equality.mli +++ b/tactics/equality.mli @@ -27,6 +27,7 @@ open Ind_tables (*i*) type dep_proof_flag = bool (* true = support rewriting dependent proofs *) +type freeze_evars_flag = bool (* true = don't instantiate existing evars *) type orientation = bool @@ -36,10 +37,10 @@ type conditions = | AllMatches (* Rewrite all matches whose side-conditions are solved *) val general_rewrite_bindings : - orientation -> occurrences -> dep_proof_flag -> + orientation -> occurrences -> freeze_evars_flag -> dep_proof_flag -> ?tac:(tactic * conditions) -> constr with_bindings -> evars_flag -> tactic val general_rewrite : - orientation -> occurrences -> dep_proof_flag -> + orientation -> occurrences -> freeze_evars_flag -> dep_proof_flag -> ?tac:(tactic * conditions) -> constr -> tactic (* Equivalent to [general_rewrite l2r] *) @@ -54,15 +55,16 @@ val register_general_rewrite_clause : val register_is_applied_rewrite_relation : (env -> evar_map -> rel_context -> constr -> constr option) -> unit val general_rewrite_ebindings_clause : identifier option -> - orientation -> occurrences -> dep_proof_flag -> ?tac:(tactic * conditions) -> - constr with_bindings -> evars_flag -> tactic + orientation -> occurrences -> freeze_evars_flag -> dep_proof_flag -> + ?tac:(tactic * conditions) -> constr with_bindings -> evars_flag -> tactic val general_rewrite_bindings_in : - orientation -> occurrences -> dep_proof_flag -> ?tac:(tactic * conditions) -> + orientation -> occurrences -> freeze_evars_flag -> dep_proof_flag -> + ?tac:(tactic * conditions) -> identifier -> constr with_bindings -> evars_flag -> tactic val general_rewrite_in : - orientation -> occurrences -> dep_proof_flag -> ?tac:(tactic * conditions) -> - identifier -> constr -> evars_flag -> tactic + orientation -> occurrences -> freeze_evars_flag -> dep_proof_flag -> + ?tac:(tactic * conditions) -> identifier -> constr -> evars_flag -> tactic val general_multi_rewrite : orientation -> evars_flag -> ?tac:(tactic * conditions) -> constr with_bindings -> clause -> tactic |