1(* 2 * Copyright 2020, Data61, CSIRO (ABN 41 687 119 230) 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 *) 6 7signature OLD_DEFS= 8sig 9end 10 11structure Old_Defs : OLD_DEFS = 12struct 13 14fun read ctxt (b, str) = 15 Syntax.read_prop ctxt str handle ERROR msg => 16 cat_error msg ("The error(s) above occurred in definition " ^ Binding.print b); 17 18fun add_defs ctxt ((unchecked, overloaded), args) thy = 19 (legacy_feature "Old 'defs' command -- use 'definition' (with 'overloading') instead"; 20 thy |> 21 (if unchecked then Global_Theory.add_defs_unchecked else Global_Theory.add_defs) 22 overloaded 23 (map (fn ((b, ax), srcs) => ((b, read ctxt (b, ax)), map (Attrib.attribute_cmd ctxt) srcs)) args)); 24 25val opt_unchecked_overloaded = 26 Scan.optional (@{keyword "("} |-- Parse.!!! 27 (((@{keyword "unchecked"} >> K true) -- 28 Scan.optional (@{keyword "overloaded"} >> K true) false || 29 @{keyword "overloaded"} >> K (false, true)) --| @{keyword ")"})) (false, false); 30 31fun syntax_alias global_alias local_alias b name = 32 Local_Theory.declaration {syntax = true, pervasive = true} (fn phi => 33 let val b' = Morphism.binding phi b 34 in Context.mapping (global_alias b' name) (local_alias b' name) end); 35 36val const_alias = syntax_alias Sign.const_alias Proof_Context.const_alias; 37 38(* Proof_Context.fact_alias doesn't work here, so we need to play a few tricks to get the right fact name *) 39 40val _ = 41 Outer_Syntax.command @{command_keyword defs} "define constants" 42 (Parse.opt_target -- (opt_unchecked_overloaded -- 43 Scan.repeat1 (Parse_Spec.thm_name ":" -- Parse.prop >> (fn ((x, y), z) => ((x, z), y)))) 44 >> (fn (target, (b, args)) => Toplevel.local_theory NONE target (fn lthy => 45 let 46 val args' = map (fn ((b, def), x) => ((Binding.suffix_name "__internal__" b, def), x)) args 47 val (thms, lthy') = Local_Theory.background_theory_result (add_defs lthy (b, args')) lthy; 48 val lthy'' = fold2 (fn ((b, _), _) => fn thm => 49 fn lthy => 50 let val (_, lthy') = Local_Theory.note ((b,[]), [thm]) lthy 51 in lthy' end) args thms lthy'; 52 val lthy''' = Local_Theory.raw_theory (fold (fn thm => 53 Global_Theory.hide_fact true (Thm.derivation_name thm)) thms) lthy'' 54 in lthy''' end))); 55 56 57val _ = 58 Outer_Syntax.command @{command_keyword consts'} "localized consts declaration" 59 (Parse.opt_target -- Scan.repeat1 Parse.const_binding >> 60 (fn (target, bs) => Toplevel.local_theory NONE target (fn lthy => 61 fold (fn (b, raw_typ, mixfix) => fn lthy => 62 let val (Const (nm, _), lthy') = Local_Theory.background_theory_result 63 (Sign.declare_const lthy ((b, Syntax.read_typ lthy raw_typ), mixfix)) lthy; 64 in const_alias b nm lthy' end) bs lthy))) 65end 66