diff options
Diffstat (limited to 'checker/declarations.ml')
-rw-r--r-- | checker/declarations.ml | 69 |
1 files changed, 53 insertions, 16 deletions
diff --git a/checker/declarations.ml b/checker/declarations.ml index 084b4eb54..890996d10 100644 --- a/checker/declarations.ml +++ b/checker/declarations.ml @@ -478,27 +478,67 @@ let val_cstr_subst = val_substituted val_constr let subst_constr_subst = subst_substituted -type inline = int option (* inlining level, None for no inlining *) +(** Beware! In .vo files, lazy_constr are stored as integers + used as indexes for a separate table. The actual lazy_constr is restored + later, by [Safe_typing.LightenLibrary.load]. This allows us + to use here a different definition of lazy_constr than coqtop: + since the checker will inspect all proofs parts, even opaque + ones, no need to use Lazy.t here *) + +type lazy_constr = constr_substituted +let subst_lazy_constr = subst_substituted +let force_lazy_constr = force_constr +let lazy_constr_from_val c = c +let val_lazy_constr = val_cstr_subst + +(** Inlining level of parameters at functor applications. + This is ignored by the checker. *) + +type inline = int option + +(** A constant can have no body (axiom/parameter), or a + transparent body, or an opaque one *) + +type constant_def = + | Undef of inline + | Def of constr_substituted + | OpaqueDef of lazy_constr + +let val_cst_def = + val_sum "constant_def" 0 + [|[|val_opt val_int|]; [|val_cstr_subst|]; [|val_lazy_constr|]|] + +let subst_constant_def sub = function + | Undef inl -> Undef inl + | Def c -> Def (subst_constr_subst sub c) + | OpaqueDef lc -> OpaqueDef (subst_lazy_constr sub lc) type constant_body = { const_hyps : section_context; (* New: younger hyp at top *) - const_body : constr_substituted option; + const_body : constant_def; const_type : constant_type; const_body_code : to_patch_substituted; - (* const_type_code : Cemitcodes.to_patch; *) - const_constraints : Univ.constraints; - const_opaque : bool; - const_inline : inline } + const_constraints : Univ.constraints } + +let body_of_constant cb = match cb.const_body with + | Undef _ -> None + | Def c -> Some c + | OpaqueDef c -> Some c + +let constant_has_body cb = match cb.const_body with + | Undef _ -> false + | Def _ | OpaqueDef _ -> true + +let is_opaque cb = match cb.const_body with + | OpaqueDef _ -> true + | Def _ | Undef _ -> false let val_cb = val_tuple ~name:"constant_body" [|val_nctxt; - val_opt val_cstr_subst; + val_cst_def; val_cst_type; no_val; - val_cstrs; - val_bool; - val_opt val_int |] - + val_cstrs|] let subst_rel_declaration sub (id,copt,t as x) = let copt' = Option.smartmap (subst_mps sub) copt in @@ -662,13 +702,10 @@ let subst_arity sub = function (* TODO: should be changed to non-coping after Term.subst_mps *) let subst_const_body sub cb = { const_hyps = (assert (cb.const_hyps=[]); []); - const_body = Option.map (subst_constr_subst sub) cb.const_body; + const_body = subst_constant_def sub cb.const_body; const_type = subst_arity sub cb.const_type; const_body_code = (*Cemitcodes.subst_to_patch_subst sub*) cb.const_body_code; - (*const_type_code = Cemitcodes.subst_to_patch sub cb.const_type_code;*) - const_constraints = cb.const_constraints; - const_opaque = cb.const_opaque; - const_inline = cb.const_inline} + const_constraints = cb.const_constraints} let subst_arity sub = function | Monomorphic s -> |