diff options
Diffstat (limited to 'compiler/Extract.ml')
| -rw-r--r-- | compiler/Extract.ml | 181 |
1 files changed, 92 insertions, 89 deletions
diff --git a/compiler/Extract.ml b/compiler/Extract.ml index af0bf98d..1fc8a97f 100644 --- a/compiler/Extract.ml +++ b/compiler/Extract.ml @@ -1880,99 +1880,102 @@ let extract_global_decl_hol4_opaque (meta : Meta.meta) (ctx : extraction_ctx) and {!extract_fun_decl}. *) let extract_global_decl (ctx : extraction_ctx) (fmt : F.formatter) - (global : global_decl) (body : fun_decl) (interface : bool) : unit = + (global : global_decl option) (body : fun_decl) (interface : bool) : unit = let meta = body.meta in sanity_check __FILE__ __LINE__ body.is_global_decl_body meta; sanity_check __FILE__ __LINE__ (body.signature.inputs = []) meta; - - (* Add a break then the name of the corresponding LLBC declaration *) - F.pp_print_break fmt 0 0; - let name = - if !Config.extract_external_name_patterns && not global.is_local then - Some global.llbc_name - else None - in - extract_comment_with_span ctx fmt - [ "[" ^ name_to_string ctx global.llbc_name ^ "]" ] - name global.meta.span; - F.pp_print_space fmt (); - - let decl_name = ctx_get_global meta global.def_id ctx in - let body_name = - ctx_get_function meta - (FromLlbc (Pure.FunId (FRegular global.body_id), None)) - ctx - in - let decl_ty, body_ty = - let ty = body.signature.output in - if body.signature.fwd_info.effect_info.can_fail then - (unwrap_result_ty meta ty, ty) - else (ty, mk_result_ty ty) - in - (* Add the type parameters *) - let ctx, type_params, cg_params, trait_clauses = - ctx_add_generic_params meta global.llbc_name global.llbc_generics - global.generics ctx - in - match body.body with - | None -> - (* No body: only generate a [val x_c : u32] declaration *) - let kind = if interface then Declared else Assumed in - if !backend = HOL4 then - extract_global_decl_hol4_opaque meta ctx fmt decl_name global.generics - decl_ty - else - extract_global_decl_body_gen meta ctx fmt kind decl_name global.generics - type_params cg_params trait_clauses decl_ty None - | Some body -> - (* There is a body *) - (* Generate: [let x_body : result u32 = Return 3] *) - extract_global_decl_body_gen meta ctx fmt SingleNonRec body_name - global.generics type_params cg_params trait_clauses body_ty - (Some (fun fmt -> extract_texpression meta ctx fmt false body.body)); + match global with + | Some global -> ( + (* Add a break then the name of the corresponding LLBC declaration *) F.pp_print_break fmt 0 0; - (* Generate: [let x_c : u32 = eval_global x_body] *) - extract_global_decl_body_gen meta ctx fmt SingleNonRec decl_name - global.generics type_params cg_params trait_clauses decl_ty - (Some - (fun fmt -> - let all_params = - List.concat [ type_params; cg_params; trait_clauses ] - in - let extract_params () = - List.iter - (fun p -> - F.pp_print_space fmt (); - F.pp_print_string fmt p) - all_params - in - let use_brackets = all_params <> [] in - (* Extract the name *) - let before, after = - match !backend with - | FStar | Lean -> - ( (fun () -> - F.pp_print_string fmt "eval_global"; - F.pp_print_space fmt ()), - fun () -> () ) - | Coq -> - ((fun () -> ()), fun () -> F.pp_print_string fmt "%global") - | HOL4 -> - ( (fun () -> - F.pp_print_string fmt "get_return_value"; - F.pp_print_space fmt ()), - fun () -> () ) - in - before (); - if use_brackets then F.pp_print_string fmt "("; - F.pp_print_string fmt body_name; - (* Extract the generic params *) - extract_params (); - if use_brackets then F.pp_print_string fmt ")"; - (* *) - after ())); - (* Add a break to insert lines between declarations *) - F.pp_print_break fmt 0 0 + let name = + if !Config.extract_external_name_patterns && not global.is_local then + Some global.llbc_name + else None + in + extract_comment_with_span ctx fmt + [ "[" ^ name_to_string ctx global.llbc_name ^ "]" ] + name global.meta.span; + F.pp_print_space fmt (); + + let decl_name = ctx_get_global meta global.def_id ctx in + let body_name = + ctx_get_function meta + (FromLlbc (Pure.FunId (FRegular global.body_id), None)) + ctx + in + let decl_ty, body_ty = + let ty = body.signature.output in + if body.signature.fwd_info.effect_info.can_fail then + (unwrap_result_ty meta ty, ty) + else (ty, mk_result_ty ty) + in + (* Add the type parameters *) + let ctx, type_params, cg_params, trait_clauses = + ctx_add_generic_params meta global.llbc_name global.llbc_generics + global.generics ctx + in + match body.body with + | None -> + (* No body: only generate a [val x_c : u32] declaration *) + let kind = if interface then Declared else Assumed in + if !backend = HOL4 then + extract_global_decl_hol4_opaque meta ctx fmt decl_name + global.generics decl_ty + else + extract_global_decl_body_gen meta ctx fmt kind decl_name + global.generics type_params cg_params trait_clauses decl_ty None + | Some body -> + (* There is a body *) + (* Generate: [let x_body : result u32 = Return 3] *) + extract_global_decl_body_gen meta ctx fmt SingleNonRec body_name + global.generics type_params cg_params trait_clauses body_ty + (Some (fun fmt -> extract_texpression meta ctx fmt false body.body)); + F.pp_print_break fmt 0 0; + (* Generate: [let x_c : u32 = eval_global x_body] *) + extract_global_decl_body_gen meta ctx fmt SingleNonRec decl_name + global.generics type_params cg_params trait_clauses decl_ty + (Some + (fun fmt -> + let all_params = + List.concat [ type_params; cg_params; trait_clauses ] + in + let extract_params () = + List.iter + (fun p -> + F.pp_print_space fmt (); + F.pp_print_string fmt p) + all_params + in + let use_brackets = all_params <> [] in + (* Extract the name *) + let before, after = + match !backend with + | FStar | Lean -> + ( (fun () -> + F.pp_print_string fmt "eval_global"; + F.pp_print_space fmt ()), + fun () -> () ) + | Coq -> + ( (fun () -> ()), + fun () -> F.pp_print_string fmt "%global" ) + | HOL4 -> + ( (fun () -> + F.pp_print_string fmt "get_return_value"; + F.pp_print_space fmt ()), + fun () -> () ) + in + before (); + if use_brackets then F.pp_print_string fmt "("; + F.pp_print_string fmt body_name; + (* Extract the generic params *) + extract_params (); + if use_brackets then F.pp_print_string fmt ")"; + (* *) + after ())); + (* Add a break to insert lines between declarations *) + F.pp_print_break fmt 0 0) + | None -> () (** Similar to {!extract_trait_decl_register_names} *) let extract_trait_decl_register_parent_clause_names (ctx : extraction_ctx) |