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-rw-r--r--pretyping/evarsolve.mli12
1 files changed, 11 insertions, 1 deletions
diff --git a/pretyping/evarsolve.mli b/pretyping/evarsolve.mli
index dfadb4aaea..ce803fe254 100644
--- a/pretyping/evarsolve.mli
+++ b/pretyping/evarsolve.mli
@@ -18,12 +18,22 @@ val of_alias : alias -> EConstr.t
type unify_flags = {
modulo_betaiota : bool;
+ (* Enable beta-iota reductions during unification *)
open_ts : Names.transparent_state;
+ (* Enable delta reduction according to open_ts for open terms *)
closed_ts : Names.transparent_state;
+ (* Enable delta reduction according to closed_ts for closed terms (when calling conversion) *)
subterm_ts : Names.transparent_state;
+ (* Enable delta reduction according to subterm_ts for selection of subterms during higher-order
+ unifications. *)
frozen_evars : Evar.Set.t;
+ (* Frozen evars are treated like rigid variables during unification: they can not be instantiated. *)
allow_K_at_toplevel : bool;
- with_cs : bool}
+ (* During higher-order unifications, allow to produce K-redexes: i.e. to produce
+ an abstraction for an unused argument *)
+ with_cs : bool
+ (* Enable canonical structure resolution during unification *)
+}
type unification_result =
| Success of evar_map