70 lines
2.9 KiB
Standard ML
70 lines
2.9 KiB
Standard ML
(*
|
|
* Copyright 2014, NICTA
|
|
*
|
|
* This software may be distributed and modified according to the terms of
|
|
* the BSD 2-Clause license. Note that NO WARRANTY is provided.
|
|
* See "LICENSE_BSD2.txt" for details.
|
|
*
|
|
* @TAG(NICTA_BSD)
|
|
*)
|
|
|
|
signature OLD_DEFS=
|
|
sig
|
|
end
|
|
|
|
structure Old_Defs : OLD_DEFS =
|
|
struct
|
|
|
|
fun read ctxt (b, str) =
|
|
Syntax.read_prop ctxt str handle ERROR msg =>
|
|
cat_error msg ("The error(s) above occurred in definition " ^ Binding.print b);
|
|
|
|
fun add_defs ctxt ((unchecked, overloaded), args) thy =
|
|
(legacy_feature "Old 'defs' command -- use 'definition' (with 'overloading') instead";
|
|
thy |>
|
|
(if unchecked then Global_Theory.add_defs_unchecked else Global_Theory.add_defs)
|
|
overloaded
|
|
(map (fn ((b, ax), srcs) => ((b, read ctxt (b, ax)), map (Attrib.attribute_cmd ctxt) srcs)) args));
|
|
|
|
val opt_unchecked_overloaded =
|
|
Scan.optional (@{keyword "("} |-- Parse.!!!
|
|
(((@{keyword "unchecked"} >> K true) --
|
|
Scan.optional (@{keyword "overloaded"} >> K true) false ||
|
|
@{keyword "overloaded"} >> K (false, true)) --| @{keyword ")"})) (false, false);
|
|
|
|
fun syntax_alias global_alias local_alias b name =
|
|
Local_Theory.declaration {syntax = true, pervasive = true} (fn phi =>
|
|
let val b' = Morphism.binding phi b
|
|
in Context.mapping (global_alias b' name) (local_alias b' name) end);
|
|
|
|
val const_alias = syntax_alias Sign.const_alias Proof_Context.const_alias;
|
|
|
|
(* Proof_Context.fact_alias doesn't work here, so we need to play a few tricks to get the right fact name *)
|
|
|
|
val _ =
|
|
Outer_Syntax.command @{command_keyword defs} "define constants"
|
|
(Parse.opt_target -- (opt_unchecked_overloaded --
|
|
Scan.repeat1 (Parse_Spec.thm_name ":" -- Parse.prop >> (fn ((x, y), z) => ((x, z), y))))
|
|
>> (fn (target, (b, args)) => Toplevel.local_theory NONE target (fn lthy =>
|
|
let
|
|
val args' = map (fn ((b, def), x) => ((Binding.suffix_name "__internal__" b, def), x)) args
|
|
val (thms, lthy') = Local_Theory.background_theory_result (add_defs lthy (b, args')) lthy;
|
|
val lthy'' = fold2 (fn ((b, _), _) => fn thm =>
|
|
fn lthy =>
|
|
let val (_, lthy') = Local_Theory.note ((b,[]), [thm]) lthy
|
|
in lthy' end) args thms lthy';
|
|
val lthy''' = Local_Theory.raw_theory (fold (fn thm =>
|
|
Global_Theory.hide_fact true (Thm.derivation_name thm)) thms) lthy''
|
|
in lthy''' end)));
|
|
|
|
|
|
val _ =
|
|
Outer_Syntax.command @{command_keyword consts'} "localized consts declaration"
|
|
(Parse.opt_target -- Scan.repeat1 Parse.const_binding >>
|
|
(fn (target, bs) => Toplevel.local_theory NONE target (fn lthy =>
|
|
fold (fn (b, raw_typ, mixfix) => fn lthy =>
|
|
let val (Const (nm, _), lthy') = Local_Theory.background_theory_result
|
|
(Sign.declare_const lthy ((b, Syntax.read_typ lthy raw_typ), mixfix)) lthy;
|
|
in const_alias b nm lthy' end) bs lthy)))
|
|
end
|