diff options
Diffstat (limited to 'kernel/constant.ml')
| -rw-r--r-- | kernel/constant.ml | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/kernel/constant.ml b/kernel/constant.ml index c93d486fa..dda7274af 100644 --- a/kernel/constant.ml +++ b/kernel/constant.ml @@ -7,13 +7,15 @@ open Generic open Term open Sign -type constant_entry = { - const_entry_body : constr; - const_entry_type : constr option } +type lazy_constant_value = + | Cooked of constr + | Recipe of (unit -> constr) + +type constant_value = lazy_constant_value ref type constant_body = { const_kind : path_kind; - const_body : constr option; + const_body : constant_value option; const_type : typed_type; const_hyps : typed_type signature; const_constraints : constraints; @@ -23,3 +25,12 @@ let is_defined cb = match cb.const_body with Some _ -> true | _ -> false let is_opaque cb = cb.const_opaque + +let cook_constant = function + | { contents = Cooked c } -> c + | { contents = Recipe f } as v -> let c = f () in v := Cooked c; c + +type constant_entry = { + const_entry_body : lazy_constant_value; + const_entry_type : constr option } + |