author | haftmann |
Mon, 22 Oct 2007 16:54:52 +0200 | |
changeset 25146 | c2a41f31cacb |
parent 25121 | fbea3ca04d51 |
child 25150 | 9d8893e9f381 |
permissions | -rw-r--r-- |
20894 | 1 |
(* Title: Pure/Isar/theory_target.ML |
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ID: $Id$ |
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Author: Makarius |
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Common theory/locale/class targets. |
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*) |
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signature THEORY_TARGET = |
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sig |
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val peek: local_theory -> {target: string, is_locale: bool, is_class: bool} |
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val begin: string -> Proof.context -> local_theory |
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val init: string option -> theory -> local_theory |
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val init_cmd: xstring option -> theory -> local_theory |
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end; |
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structure TheoryTarget: THEORY_TARGET = |
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struct |
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(* context data *) |
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datatype target = Target of {target: string, is_locale: bool, is_class: bool}; |
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fun make_target target is_locale is_class = |
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Target {target = target, is_locale = is_locale, is_class = is_class}; |
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structure Data = ProofDataFun |
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( |
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type T = target; |
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fun init _ = make_target "" false false; |
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); |
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val peek = (fn Target args => args) o Data.get; |
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(* pretty *) |
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fun pretty (Target {target, is_locale, is_class}) ctxt = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val target_name = (if is_class then "class " else "locale ") ^ Locale.extern thy target; |
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val fixes = map (fn (x, T) => (x, SOME T, NoSyn)) (#1 (ProofContext.inferred_fixes ctxt)); |
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val assumes = map (fn A => (("", []), [(A, [])])) (map Thm.term_of (Assumption.assms_of ctxt)); |
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val elems = |
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(if null fixes then [] else [Element.Fixes fixes]) @ |
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(if null assumes then [] else [Element.Assumes assumes]); |
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in |
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Pretty.block [Pretty.str "theory", Pretty.brk 1, Pretty.str (Context.theory_name thy)] :: |
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(if target = "" then [] |
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else if null elems then [Pretty.str target_name] |
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else [Pretty.big_list (target_name ^ " =") |
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(map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)]) |
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end; |
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(* target declarations *) |
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fun target_decl add (Target {target, ...}) d lthy = |
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let |
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val d' = Morphism.transform (LocalTheory.target_morphism lthy) d; |
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val d0 = Morphism.form d'; |
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in |
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if target = "" then |
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lthy |
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|> LocalTheory.theory (Context.theory_map d0) |
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|> LocalTheory.target (Context.proof_map d0) |
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else |
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lthy |
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|> LocalTheory.target (add target d') |
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end; |
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val type_syntax = target_decl Locale.add_type_syntax; |
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val term_syntax = target_decl Locale.add_term_syntax; |
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val declaration = target_decl Locale.add_declaration; |
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fun target_naming (Target {target, ...}) lthy = |
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(if target = "" then Sign.naming_of (ProofContext.theory_of lthy) |
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else ProofContext.naming_of (LocalTheory.target_of lthy)) |
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|> NameSpace.qualified_names; |
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fun class_target (Target {target, ...}) f = |
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LocalTheory.raw_theory f #> |
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LocalTheory.target (Class.refresh_syntax target); |
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(* notes *) |
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fun import_export_proof ctxt (name, raw_th) = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val thy_ctxt = ProofContext.init thy; |
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val certT = Thm.ctyp_of thy; |
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val cert = Thm.cterm_of thy; |
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(*export assumes/defines*) |
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val th = Goal.norm_result raw_th; |
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val (defs, th') = LocalDefs.export ctxt thy_ctxt th; |
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val concl_conv = MetaSimplifier.rewrite true defs (Thm.cprop_of th); |
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val assms = map (MetaSimplifier.rewrite_rule defs o Thm.assume) (Assumption.assms_of ctxt); |
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val nprems = Thm.nprems_of th' - Thm.nprems_of th; |
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(*export fixes*) |
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val tfrees = map TFree (Thm.fold_terms Term.add_tfrees th' []); |
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val frees = map Free (Thm.fold_terms Term.add_frees th' []); |
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val (th'' :: vs) = (th' :: map (Drule.mk_term o cert) (map Logic.mk_type tfrees @ frees)) |
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|> Variable.export ctxt thy_ctxt |
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|> Drule.zero_var_indexes_list; |
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(*thm definition*) |
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val result = th'' |
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|> PureThy.name_thm true true "" |
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|> Goal.close_result |
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|> fold PureThy.tag_rule (ContextPosition.properties_of ctxt) |
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|> PureThy.name_thm true true name; |
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(*import fixes*) |
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val (tvars, vars) = |
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chop (length tfrees) (map (Thm.term_of o Drule.dest_term) vs) |
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|>> map Logic.dest_type; |
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val instT = map_filter (fn (TVar v, T) => SOME (v, T) | _ => NONE) (tvars ~~ tfrees); |
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val inst = filter (is_Var o fst) (vars ~~ frees); |
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val cinstT = map (pairself certT o apfst TVar) instT; |
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val cinst = map (pairself (cert o Term.map_types (TermSubst.instantiateT instT))) inst; |
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val result' = Thm.instantiate (cinstT, cinst) result; |
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(*import assumes/defines*) |
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val assm_tac = FIRST' (map (fn assm => Tactic.compose_tac (false, assm, 0)) assms); |
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val result'' = |
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(case SINGLE (Seq.INTERVAL assm_tac 1 nprems) result' of |
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NONE => raise THM ("Failed to re-import result", 0, [result']) |
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| SOME res => LocalDefs.trans_props ctxt [res, Thm.symmetric concl_conv]) |
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|> Goal.norm_result |
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|> PureThy.name_thm false false name; |
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in (result'', result) end; |
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fun notes (Target {target, is_locale, ...}) kind facts lthy = |
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let |
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val thy = ProofContext.theory_of lthy; |
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val full = LocalTheory.full_name lthy; |
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val facts' = facts |
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|> map (fn (a, bs) => (a, PureThy.burrow_fact (PureThy.name_multi (full (fst a))) bs)) |
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|> PureThy.map_facts (import_export_proof lthy); |
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val local_facts = PureThy.map_facts #1 facts' |
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|> Attrib.map_facts (Attrib.attribute_i thy); |
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val target_facts = PureThy.map_facts #1 facts' |
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|> is_locale ? Element.facts_map (Element.morph_ctxt (LocalTheory.target_morphism lthy)); |
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val global_facts = PureThy.map_facts #2 facts' |
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|> Attrib.map_facts (if is_locale then K I else Attrib.attribute_i thy); |
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in |
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lthy |> LocalTheory.theory |
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(Sign.qualified_names |
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#> PureThy.note_thmss_i kind global_facts #> snd |
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#> Sign.restore_naming thy) |
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|> is_locale ? LocalTheory.target (Locale.add_thmss target kind target_facts) |
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20894 | 159 |
|> ProofContext.qualified_names |
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|> ProofContext.note_thmss_i kind local_facts |
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||> ProofContext.restore_naming lthy |
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end; |
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(* declare_const *) |
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fun fork_mixfix (Target {is_locale, is_class, ...}) mx = |
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if not is_locale then (NoSyn, NoSyn, mx) |
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else if not is_class then (NoSyn, mx, NoSyn) |
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else (mx, NoSyn, NoSyn); |
25068 | 171 |
|
25053 | 172 |
fun locale_const (prmode as (mode, _)) pos ((c, mx), rhs) phi = |
24939 | 173 |
let |
174 |
val c' = Morphism.name phi c; |
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175 |
val rhs' = Morphism.term phi rhs; |
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25053 | 176 |
val legacy_arg = (c', Term.close_schematic_term (Logic.legacy_varify rhs')); |
177 |
val arg = (c', Term.close_schematic_term rhs'); |
|
24939 | 178 |
in |
25053 | 179 |
Context.mapping_result |
25121 | 180 |
(Sign.add_abbrev PrintMode.internal pos legacy_arg) |
181 |
(ProofContext.add_abbrev PrintMode.internal pos arg) |
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25053 | 182 |
#-> (fn (lhs' as Const (d, _), _) => |
25022 | 183 |
Type.similar_types (rhs, rhs') ? |
25053 | 184 |
(Context.mapping (Sign.revert_abbrev mode d) (ProofContext.revert_abbrev mode d) #> |
185 |
Morphism.form (ProofContext.target_notation true prmode [(lhs', mx)]))) |
|
24939 | 186 |
end; |
187 |
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fun declare_const (ta as Target {target, is_locale, is_class}) depends ((c, T), mx) lthy = |
24939 | 189 |
let |
25053 | 190 |
val pos = ContextPosition.properties_of lthy; |
24939 | 191 |
val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
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192 |
val U = map #2 xs ---> T; |
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193 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
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194 |
val (const, lthy') = lthy |> LocalTheory.theory_result (Sign.declare_const pos (c, U, mx3)); |
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195 |
val t = Term.list_comb (const, map Free xs); |
24939 | 196 |
in |
197 |
lthy' |
|
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198 |
|> is_locale ? term_syntax ta (locale_const Syntax.mode_default pos ((c, mx2), t)) |
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199 |
|> is_class ? class_target ta (Class.add_logical_const target pos ((c, mx1), t)) |
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200 |
|> LocalDefs.add_def ((c, NoSyn), t) |
24939 | 201 |
end; |
202 |
||
203 |
||
204 |
(* abbrev *) |
|
205 |
||
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206 |
fun abbrev (ta as Target {target, is_locale, is_class}) prmode ((c, mx), t) lthy = |
24939 | 207 |
let |
25053 | 208 |
val pos = ContextPosition.properties_of lthy; |
209 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
|
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210 |
val target_ctxt = LocalTheory.target_of lthy; |
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211 |
|
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212 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
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213 |
val t' = Assumption.export_term lthy target_ctxt t; |
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214 |
val xs = map Free (rev (Variable.add_fixed target_ctxt t' [])); |
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215 |
val u = fold_rev lambda xs t'; |
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216 |
val global_rhs = |
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217 |
singleton (Variable.export_terms (Variable.declare_term u target_ctxt) thy_ctxt) u; |
25146 | 218 |
val class_t = Morphism.term (LocalTheory.target_morphism lthy) t; |
25121 | 219 |
in |
220 |
lthy |> |
|
221 |
(if is_locale then |
|
222 |
LocalTheory.theory_result (Sign.add_abbrev PrintMode.internal pos (c, global_rhs)) |
|
223 |
#-> (fn (lhs, _) => |
|
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224 |
let val lhs' = Term.list_comb (Logic.unvarify lhs, xs) in |
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225 |
term_syntax ta (locale_const prmode pos ((c, mx2), lhs')) #> |
25121 | 226 |
is_class ? |
25146 | 227 |
class_target ta (Class.add_syntactic_const target prmode pos ((c, mx1), class_t)) |
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228 |
end) |
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229 |
else |
25121 | 230 |
LocalTheory.theory |
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231 |
(Sign.add_abbrev (#1 prmode) pos (c, global_rhs) #-> (fn (lhs, _) => |
25121 | 232 |
Sign.notation true prmode [(lhs, mx3)]))) |
233 |
|> ProofContext.add_abbrev PrintMode.internal pos (c, t) |> snd |
|
234 |
|> LocalDefs.fixed_abbrev ((c, NoSyn), t) |
|
24939 | 235 |
end; |
236 |
||
237 |
||
25022 | 238 |
(* define *) |
24939 | 239 |
|
25022 | 240 |
fun define (ta as Target {target, is_locale, is_class}) |
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241 |
kind ((c, mx), ((name, atts), rhs)) lthy = |
24939 | 242 |
let |
24987 | 243 |
val thy = ProofContext.theory_of lthy; |
24939 | 244 |
val thy_ctxt = ProofContext.init thy; |
245 |
||
25022 | 246 |
val name' = Thm.def_name_optional c name; |
24987 | 247 |
val (rhs', rhs_conv) = |
248 |
LocalDefs.export_cterm lthy thy_ctxt (Thm.cterm_of thy rhs) |>> Thm.term_of; |
|
249 |
val xs = Variable.add_fixed (LocalTheory.target_of lthy) rhs' []; |
|
24939 | 250 |
val T = Term.fastype_of rhs; |
251 |
||
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252 |
(*const*) |
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253 |
val ((lhs, local_def), lthy2) = lthy |> declare_const ta (member (op =) xs) ((c, T), mx); |
25022 | 254 |
val (_, lhs') = Logic.dest_equals (Thm.prop_of local_def); |
24939 | 255 |
|
256 |
(*def*) |
|
25022 | 257 |
val (global_def, lthy3) = lthy2 |
24983 | 258 |
|> LocalTheory.theory_result (Thm.add_def false (name', Logic.mk_equals (lhs', rhs'))); |
25022 | 259 |
val def = LocalDefs.trans_terms lthy3 |
260 |
[(*c == global.c xs*) local_def, |
|
261 |
(*global.c xs == rhs'*) global_def, |
|
262 |
(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
|
24939 | 263 |
|
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264 |
(*note*) |
24939 | 265 |
val ([(res_name, [res])], lthy4) = lthy3 |
25022 | 266 |
|> notes ta kind [((name', atts), [([def], [])])]; |
24939 | 267 |
in ((lhs, (res_name, res)), lthy4) end; |
268 |
||
269 |
||
270 |
(* axioms *) |
|
271 |
||
25022 | 272 |
fun axioms ta kind (vars, specs) lthy = |
24939 | 273 |
let |
25022 | 274 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
275 |
val expanded_props = map (Assumption.export_term lthy thy_ctxt) (maps snd specs); |
|
276 |
val xs = fold Term.add_frees expanded_props []; |
|
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277 |
|
25022 | 278 |
(*consts*) |
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279 |
val (consts, lthy') = fold_map (declare_const ta (member (op =) xs)) vars lthy; |
25022 | 280 |
val global_consts = map (Term.dest_Const o Term.head_of o Thm.term_of o Thm.rhs_of o #2) consts; |
281 |
||
282 |
(*axioms*) |
|
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283 |
val hyps = map Thm.term_of (Assumption.assms_of lthy'); |
24939 | 284 |
fun axiom ((name, atts), props) thy = thy |
24983 | 285 |
|> fold_map (Thm.add_axiom hyps) (PureThy.name_multi name props) |
24939 | 286 |
|-> (fn ths => pair ((name, atts), [(ths, [])])); |
287 |
in |
|
24987 | 288 |
lthy' |
25022 | 289 |
|> fold Variable.declare_term expanded_props |
290 |
|> LocalTheory.theory (fold (fn c => Theory.add_deps "" c []) global_consts) |
|
24939 | 291 |
|> LocalTheory.theory_result (fold_map axiom specs) |
25022 | 292 |
|-> notes ta kind |
24987 | 293 |
|>> pair (map #1 consts) |
24939 | 294 |
end; |
295 |
||
296 |
||
20894 | 297 |
(* init and exit *) |
298 |
||
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|
299 |
fun begin target ctxt = |
22353 | 300 |
let |
301 |
val thy = ProofContext.theory_of ctxt; |
|
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302 |
val is_locale = target <> ""; |
25028 | 303 |
val is_class = Class.is_class thy target; |
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304 |
val ta = Target {target = target, is_locale = is_locale, is_class = is_class}; |
22353 | 305 |
in |
306 |
ctxt |
|
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|
307 |
|> Data.put ta |
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308 |
|> is_class ? Class.init target |
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|
309 |
|> LocalTheory.init (NameSpace.base target) |
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310 |
{pretty = pretty ta, |
25022 | 311 |
axioms = axioms ta, |
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312 |
abbrev = abbrev ta, |
25022 | 313 |
define = define ta, |
314 |
notes = notes ta, |
|
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|
315 |
type_syntax = type_syntax ta, |
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|
316 |
term_syntax = term_syntax ta, |
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|
317 |
declaration = declaration ta, |
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|
318 |
target_naming = target_naming ta, |
21804 | 319 |
reinit = fn _ => |
25028 | 320 |
begin target o (if is_locale then Locale.init target else ProofContext.init), |
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321 |
exit = LocalTheory.target_of} |
21747 | 322 |
end; |
20894 | 323 |
|
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324 |
fun init NONE thy = begin "" (ProofContext.init thy) |
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325 |
| init (SOME target) thy = begin target (Locale.init target thy); |
20894 | 326 |
|
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327 |
fun init_cmd (SOME "-") thy = init NONE thy |
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|
328 |
| init_cmd target thy = init (Option.map (Locale.intern thy) target) thy; |
20894 | 329 |
|
330 |
end; |