author | wenzelm |
Thu, 18 Apr 2013 17:07:01 +0200 | |
changeset 51717 | 9e7d1c139569 |
parent 50214 | 67fb9a168d10 |
child 51737 | 718866dda2fa |
permissions | -rw-r--r-- |
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(* Title: HOL/Statespace/state_space.ML |
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Author: Norbert Schirmer, TU Muenchen |
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*) |
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signature STATE_SPACE = |
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sig |
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val distinct_compsN : string |
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val getN : string |
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val putN : string |
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val injectN : string |
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val namespaceN : string |
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val projectN : string |
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val valuetypesN : string |
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val namespace_definition : |
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bstring -> |
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typ -> |
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(xstring, string) Expression.expr * (binding * string option * mixfix) list -> |
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string list -> string list -> theory -> theory |
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val define_statespace : |
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string list -> |
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string -> |
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((string * bool) * (string list * bstring * (string * string) list)) list -> |
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(string * string) list -> theory -> theory |
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val define_statespace_i : |
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string option -> |
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string list -> |
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string -> |
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((string * bool) * (typ list * bstring * (string * string) list)) list -> |
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(string * typ) list -> theory -> theory |
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val statespace_decl : |
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((string list * bstring) * |
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(((string * bool) * (string list * xstring * (bstring * bstring) list)) list * |
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(bstring * string) list)) parser |
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val neq_x_y : Proof.context -> term -> term -> thm option |
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val distinctNameSolver : Simplifier.solver |
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val distinctTree_tac : Proof.context -> int -> tactic |
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val distinct_simproc : Simplifier.simproc |
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val get_comp : Context.generic -> string -> (typ * string) option |
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val get_silent : Context.generic -> bool |
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val set_silent : bool -> Context.generic -> Context.generic |
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val gen_lookup_tr : Proof.context -> term -> string -> term |
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val lookup_swap_tr : Proof.context -> term list -> term |
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val lookup_tr : Proof.context -> term list -> term |
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val lookup_tr' : Proof.context -> term list -> term |
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val gen_update_tr : |
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bool -> Proof.context -> string -> term -> term -> term |
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val update_tr : Proof.context -> term list -> term |
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val update_tr' : Proof.context -> term list -> term |
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end; |
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structure StateSpace : STATE_SPACE = |
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struct |
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(* Names *) |
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val distinct_compsN = "distinct_names" |
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val namespaceN = "_namespace" |
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val valuetypesN = "_valuetypes" |
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val projectN = "project" |
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val injectN = "inject" |
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val getN = "get" |
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val putN = "put" |
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val project_injectL = "StateSpaceLocale.project_inject"; |
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(* Library *) |
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fun fold1 f xs = fold f (tl xs) (hd xs) |
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fun fold1' f [] x = x |
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| fold1' f xs _ = fold1 f xs |
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fun sublist_idx eq xs ys = |
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let |
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fun sublist n xs ys = |
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if is_prefix eq xs ys then SOME n |
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else (case ys of [] => NONE |
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| (y::ys') => sublist (n+1) xs ys') |
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in sublist 0 xs ys end; |
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fun is_sublist eq xs ys = is_some (sublist_idx eq xs ys); |
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fun sorted_subset eq [] ys = true |
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| sorted_subset eq (x::xs) [] = false |
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| sorted_subset eq (x::xs) (y::ys) = if eq (x,y) then sorted_subset eq xs ys |
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else sorted_subset eq (x::xs) ys; |
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type namespace_info = |
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{declinfo: (typ*string) Termtab.table, (* type, name of statespace *) |
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distinctthm: thm Symtab.table, |
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silent: bool |
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}; |
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structure NameSpaceData = Generic_Data |
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( |
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type T = namespace_info; |
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val empty = {declinfo = Termtab.empty, distinctthm = Symtab.empty, silent = false}; |
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val extend = I; |
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fun merge |
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({declinfo=declinfo1, distinctthm=distinctthm1, silent=silent1}, |
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{declinfo=declinfo2, distinctthm=distinctthm2, silent=silent2}) : T = |
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{declinfo = Termtab.merge (K true) (declinfo1, declinfo2), |
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distinctthm = Symtab.merge (K true) (distinctthm1, distinctthm2), |
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silent = silent1 andalso silent2 (* FIXME odd merge *)} |
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); |
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fun make_namespace_data declinfo distinctthm silent = |
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{declinfo=declinfo,distinctthm=distinctthm,silent=silent}; |
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fun delete_declinfo n ctxt = |
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let val {declinfo,distinctthm,silent} = NameSpaceData.get ctxt; |
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in NameSpaceData.put |
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(make_namespace_data (Termtab.delete_safe n declinfo) distinctthm silent) ctxt |
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end; |
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fun update_declinfo (n,v) ctxt = |
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let val {declinfo,distinctthm,silent} = NameSpaceData.get ctxt; |
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in NameSpaceData.put |
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(make_namespace_data (Termtab.update (n,v) declinfo) distinctthm silent) ctxt |
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end; |
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fun set_silent silent ctxt = |
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let val {declinfo,distinctthm,...} = NameSpaceData.get ctxt; |
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in NameSpaceData.put |
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(make_namespace_data declinfo distinctthm silent) ctxt |
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end; |
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val get_silent = #silent o NameSpaceData.get; |
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fun expression_no_pos (expr, fixes) : Expression.expression = |
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(map (fn (name, inst) => ((name, Position.none), inst)) expr, fixes); |
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fun prove_interpretation_in ctxt_tac (name, expr) thy = |
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thy |
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|> Expression.sublocale_cmd I (name, Position.none) (expression_no_pos expr) [] |
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|> Proof.global_terminal_proof |
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((Method.Basic (fn ctxt => SIMPLE_METHOD (ctxt_tac ctxt)), Position.no_range), NONE) |
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|> Proof_Context.theory_of |
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fun add_locale name expr elems thy = |
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thy |
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|> Expression.add_locale I (Binding.name name) (Binding.name name) expr elems |
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|> snd |
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|> Local_Theory.exit; |
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fun add_locale_cmd name expr elems thy = |
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thy |
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|> Expression.add_locale_cmd I (Binding.name name) Binding.empty (expression_no_pos expr) elems |
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|> snd |
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|> Local_Theory.exit; |
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type statespace_info = |
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{args: (string * sort) list, (* type arguments *) |
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parents: (typ list * string * string option list) list, |
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(* type instantiation, state-space name, component renamings *) |
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components: (string * typ) list, |
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types: typ list (* range types of state space *) |
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}; |
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structure StateSpaceData = Generic_Data |
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( |
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type T = statespace_info Symtab.table; |
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val empty = Symtab.empty; |
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val extend = I; |
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fun merge data : T = Symtab.merge (K true) data; |
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); |
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fun add_statespace name args parents components types ctxt = |
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StateSpaceData.put |
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(Symtab.update_new (name, {args=args,parents=parents, |
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components=components,types=types}) (StateSpaceData.get ctxt)) |
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ctxt; |
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fun get_statespace ctxt name = |
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Symtab.lookup (StateSpaceData.get ctxt) name; |
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fun mk_free ctxt name = |
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if Variable.is_fixed ctxt name orelse Variable.is_declared ctxt name |
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then |
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let val n' = Variable.intern_fixed ctxt name |
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in SOME (Free (n', Proof_Context.infer_type ctxt (n', dummyT))) end |
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else NONE |
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fun get_dist_thm ctxt name = Symtab.lookup (#distinctthm (NameSpaceData.get ctxt)) name; |
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fun get_comp ctxt name = |
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Option.mapPartial |
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(Termtab.lookup (#declinfo (NameSpaceData.get ctxt))) |
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(mk_free (Context.proof_of ctxt) name); |
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(*** Tactics ***) |
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fun neq_x_y ctxt x y = |
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(let |
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val dist_thm = the (get_dist_thm (Context.Proof ctxt) (#1 (dest_Free x))); |
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val ctree = cprop_of dist_thm |> Thm.dest_comb |> #2 |> Thm.dest_comb |> #2; |
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val tree = term_of ctree; |
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val x_path = the (DistinctTreeProver.find_tree x tree); |
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val y_path = the (DistinctTreeProver.find_tree y tree); |
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val thm = DistinctTreeProver.distinctTreeProver dist_thm x_path y_path; |
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in SOME thm |
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end handle Option.Option => NONE) |
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fun distinctTree_tac ctxt = SUBGOAL (fn (goal, i) => |
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(case goal of |
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Const (@{const_name Trueprop}, _) $ |
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(Const (@{const_name Not}, _) $ |
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(Const (@{const_name HOL.eq}, _) $ (x as Free _) $ (y as Free _))) => |
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(case neq_x_y ctxt x y of |
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SOME neq => rtac neq i |
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| NONE => no_tac) |
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| _ => no_tac)); |
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val distinctNameSolver = mk_solver "distinctNameSolver" distinctTree_tac; |
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val distinct_simproc = |
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Simplifier.simproc_global @{theory HOL} "StateSpace.distinct_simproc" ["x = y"] |
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(fn ctxt => (fn (Const (@{const_name HOL.eq},_)$(x as Free _)$(y as Free _)) => |
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Option.map (fn neq => DistinctTreeProver.neq_to_eq_False OF [neq]) (neq_x_y ctxt x y) |
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| _ => NONE)); |
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fun interprete_parent name dist_thm_name parent_expr thy = |
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let |
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fun solve_tac ctxt = CSUBGOAL (fn (goal, i) => |
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let |
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val distinct_thm = Proof_Context.get_thm ctxt dist_thm_name; |
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val rule = DistinctTreeProver.distinct_implProver distinct_thm goal; |
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in rtac rule i end); |
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fun tac ctxt = |
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Locale.intro_locales_tac true ctxt [] THEN ALLGOALS (solve_tac ctxt); |
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in |
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thy |> prove_interpretation_in tac (name, parent_expr) |
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end; |
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fun namespace_definition name nameT parent_expr parent_comps new_comps thy = |
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let |
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val all_comps = parent_comps @ new_comps; |
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val vars = (map (fn n => (Binding.name n, NONE, NoSyn)) all_comps); |
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val full_name = Sign.full_bname thy name; |
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val dist_thm_name = distinct_compsN; |
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val dist_thm_full_name = dist_thm_name; |
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fun comps_of_thm thm = prop_of thm |
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|> (fn (_$(_$t)) => DistinctTreeProver.dest_tree t) |> map (fst o dest_Free); |
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fun type_attr phi = Thm.declaration_attribute (fn thm => fn context => |
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(case context of |
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Context.Theory _ => context |
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| Context.Proof ctxt => |
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let |
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val {declinfo,distinctthm=tt,silent} = NameSpaceData.get context; |
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val all_names = comps_of_thm thm; |
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fun upd name tt = |
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(case Symtab.lookup tt name of |
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SOME dthm => if sorted_subset (op =) (comps_of_thm dthm) all_names |
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then Symtab.update (name,thm) tt else tt |
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| NONE => Symtab.update (name,thm) tt) |
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val tt' = tt |> fold upd all_names; |
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val context' = |
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Context_Position.set_visible false ctxt |
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addsimprocs [distinct_simproc] |
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|> Context_Position.restore_visible ctxt |
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|> Context.Proof |
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|> NameSpaceData.put {declinfo=declinfo,distinctthm=tt',silent=silent}; |
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in context' end)); |
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val attr = Attrib.internal type_attr; |
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val assume = |
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((Binding.name dist_thm_name, [attr]), |
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[(HOLogic.Trueprop $ |
|
289 |
(Const (@{const_name all_distinct}, Type (@{type_name tree}, [nameT]) --> HOLogic.boolT) $ |
|
290 |
DistinctTreeProver.mk_tree (fn n => Free (n, nameT)) nameT |
|
291 |
(sort fast_string_ord all_comps)), [])]); |
|
292 |
in |
|
293 |
thy |
|
294 |
|> add_locale name ([], vars) [Element.Assumes [assume]] |
|
295 |
|> Proof_Context.theory_of |
|
296 |
|> interprete_parent name dist_thm_full_name parent_expr |
|
25171 | 297 |
end; |
298 |
||
32651 | 299 |
fun encode_dot x = if x= #"." then #"_" else x; |
25171 | 300 |
|
301 |
fun encode_type (TFree (s, _)) = s |
|
302 |
| encode_type (TVar ((s,i),_)) = "?" ^ s ^ string_of_int i |
|
26478 | 303 |
| encode_type (Type (n,Ts)) = |
25171 | 304 |
let |
305 |
val Ts' = fold1' (fn x => fn y => x ^ "_" ^ y) (map encode_type Ts) ""; |
|
32651 | 306 |
val n' = String.map encode_dot n; |
25171 | 307 |
in if Ts'="" then n' else Ts' ^ "_" ^ n' end; |
308 |
||
309 |
fun project_name T = projectN ^"_"^encode_type T; |
|
310 |
fun inject_name T = injectN ^"_"^encode_type T; |
|
311 |
||
312 |
fun project_free T pT V = Free (project_name T, V --> pT); |
|
313 |
fun inject_free T pT V = Free (inject_name T, pT --> V); |
|
314 |
||
315 |
fun get_name n = getN ^ "_" ^ n; |
|
316 |
fun put_name n = putN ^ "_" ^ n; |
|
317 |
fun get_const n T nT V = Free (get_name n, (nT --> V) --> T); |
|
318 |
fun put_const n T nT V = Free (put_name n, T --> (nT --> V) --> (nT --> V)); |
|
319 |
||
45362 | 320 |
fun lookup_const T nT V = |
321 |
Const (@{const_name StateFun.lookup}, (V --> T) --> nT --> (nT --> V) --> T); |
|
322 |
||
26478 | 323 |
fun update_const T nT V = |
45362 | 324 |
Const (@{const_name StateFun.update}, |
325 |
(V --> T) --> (T --> V) --> nT --> (T --> T) --> (nT --> V) --> (nT --> V)); |
|
25171 | 326 |
|
45362 | 327 |
fun K_const T = Const (@{const_name K_statefun}, T --> T --> T); |
25171 | 328 |
|
329 |
||
330 |
fun add_declaration name decl thy = |
|
331 |
thy |
|
41585
45d7da4e4ccf
added before_exit continuation for named targets (locale, class etc.), e.g. for final check/cleanup as in VC management;
wenzelm
parents:
41472
diff
changeset
|
332 |
|> Named_Target.init I name |
45291
57cd50f98fdc
uniform Local_Theory.declaration with explicit params;
wenzelm
parents:
44121
diff
changeset
|
333 |
|> (fn lthy => Local_Theory.declaration {syntax = false, pervasive = false} (decl lthy) lthy) |
33671 | 334 |
|> Local_Theory.exit_global; |
25171 | 335 |
|
336 |
fun parent_components thy (Ts, pname, renaming) = |
|
337 |
let |
|
338 |
val ctxt = Context.Theory thy; |
|
339 |
fun rename [] xs = xs |
|
340 |
| rename (NONE::rs) (x::xs) = x::rename rs xs |
|
341 |
| rename (SOME r::rs) ((x,T)::xs) = (r,T)::rename rs xs; |
|
45362 | 342 |
val {args, parents, components, ...} = the (Symtab.lookup (StateSpaceData.get ctxt) pname); |
25171 | 343 |
val inst = map fst args ~~ Ts; |
344 |
val subst = Term.map_type_tfree (the o AList.lookup (op =) inst o fst); |
|
26478 | 345 |
val parent_comps = |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
346 |
maps (fn (Ts',n,rs) => parent_components thy (map subst Ts', n, rs)) parents; |
25171 | 347 |
val all_comps = rename renaming (parent_comps @ map (apsnd subst) components); |
348 |
in all_comps end; |
|
349 |
||
43278 | 350 |
fun take_upto i xs = List.take(xs,i) handle General.Subscript => xs; |
25171 | 351 |
|
352 |
fun statespace_definition state_type args name parents parent_comps components thy = |
|
26478 | 353 |
let |
28965 | 354 |
val full_name = Sign.full_bname thy name; |
25171 | 355 |
val all_comps = parent_comps @ components; |
356 |
||
357 |
val components' = map (fn (n,T) => (n,(T,full_name))) components; |
|
26478 | 358 |
val all_comps' = map (fn (n,T) => (n,(T,full_name))) all_comps; |
25171 | 359 |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
360 |
fun parent_expr (prefix, (_, n, rs)) = |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
361 |
(suffix namespaceN n, (prefix, Expression.Positional rs)); |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
362 |
val parents_expr = map parent_expr parents; |
25171 | 363 |
fun distinct_types Ts = |
27276 | 364 |
let val tab = fold (fn T => fn tab => Typtab.update (T,()) tab) Ts Typtab.empty; |
365 |
in map fst (Typtab.dest tab) end; |
|
25171 | 366 |
|
367 |
val Ts = distinct_types (map snd all_comps); |
|
368 |
val arg_names = map fst args; |
|
43324
2b47822868e4
discontinued Name.variant to emphasize that this is old-style / indirect;
wenzelm
parents:
43278
diff
changeset
|
369 |
val valueN = singleton (Name.variant_list arg_names) "'value"; |
2b47822868e4
discontinued Name.variant to emphasize that this is old-style / indirect;
wenzelm
parents:
43278
diff
changeset
|
370 |
val nameN = singleton (Name.variant_list (valueN :: arg_names)) "'name"; |
25171 | 371 |
val valueT = TFree (valueN, Sign.defaultS thy); |
372 |
val nameT = TFree (nameN, Sign.defaultS thy); |
|
373 |
val stateT = nameT --> valueT; |
|
374 |
fun projectT T = valueT --> T; |
|
26478 | 375 |
fun injectT T = T --> valueT; |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
376 |
val locinsts = map (fn T => (project_injectL, |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
377 |
((encode_type T,false),Expression.Positional |
45362 | 378 |
[SOME (Free (project_name T,projectT T)), |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
379 |
SOME (Free ((inject_name T,injectT T)))]))) Ts; |
32952 | 380 |
val locs = maps (fn T => [(Binding.name (project_name T),NONE,NoSyn), |
381 |
(Binding.name (inject_name T),NONE,NoSyn)]) Ts; |
|
382 |
val constrains = maps (fn T => [(project_name T,projectT T),(inject_name T,injectT T)]) Ts; |
|
25171 | 383 |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
384 |
fun interprete_parent_valuetypes (prefix, (Ts, pname, _)) thy = |
25171 | 385 |
let |
26478 | 386 |
val {args,types,...} = |
25171 | 387 |
the (Symtab.lookup (StateSpaceData.get (Context.Theory thy)) pname); |
388 |
val inst = map fst args ~~ Ts; |
|
389 |
val subst = Term.map_type_tfree (the o AList.lookup (op =) inst o fst); |
|
32952 | 390 |
val pars = maps ((fn T => [project_name T,inject_name T]) o subst) types; |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
391 |
|
45362 | 392 |
val expr = ([(suffix valuetypesN name, |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
393 |
(prefix, Expression.Positional (map SOME pars)))],[]); |
29291 | 394 |
in |
30473
e0b66c11e7e4
Assumption.all_prems_of, Assumption.all_assms_of;
wenzelm
parents:
30364
diff
changeset
|
395 |
prove_interpretation_in (ALLGOALS o solve_tac o Assumption.all_prems_of) |
29291 | 396 |
(suffix valuetypesN name, expr) thy |
397 |
end; |
|
25171 | 398 |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
399 |
fun interprete_parent (prefix, (_, pname, rs)) = |
25171 | 400 |
let |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
401 |
val expr = ([(pname, (prefix, Expression.Positional rs))],[]) |
26478 | 402 |
in prove_interpretation_in |
29360 | 403 |
(fn ctxt => Locale.intro_locales_tac false ctxt []) |
25171 | 404 |
(full_name, expr) end; |
405 |
||
406 |
fun declare_declinfo updates lthy phi ctxt = |
|
407 |
let |
|
26478 | 408 |
fun upd_prf ctxt = |
25171 | 409 |
let |
410 |
fun upd (n,v) = |
|
411 |
let |
|
42361 | 412 |
val nT = Proof_Context.infer_type (Local_Theory.target_of lthy) (n, dummyT) |
26478 | 413 |
in Context.proof_map |
414 |
(update_declinfo (Morphism.term phi (Free (n,nT)),v)) |
|
25171 | 415 |
end; |
416 |
in ctxt |> fold upd updates end; |
|
417 |
||
418 |
in Context.mapping I upd_prf ctxt end; |
|
419 |
||
26478 | 420 |
fun string_of_typ T = |
39134
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
wenzelm
parents:
38864
diff
changeset
|
421 |
Print_Mode.setmp [] |
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
wenzelm
parents:
38864
diff
changeset
|
422 |
(Syntax.string_of_typ (Config.put show_sorts true (Syntax.init_pretty_global thy))) T; |
25171 | 423 |
val fixestate = (case state_type of |
424 |
NONE => [] |
|
26478 | 425 |
| SOME s => |
426 |
let |
|
32960
69916a850301
eliminated hard tabulators, guessing at each author's individual tab-width;
wenzelm
parents:
32952
diff
changeset
|
427 |
val fx = Element.Fixes [(Binding.name s,SOME (string_of_typ stateT),NoSyn)]; |
26478 | 428 |
val cs = Element.Constrains |
25171 | 429 |
(map (fn (n,T) => (n,string_of_typ T)) |
430 |
((map (fn (n,_) => (n,nameT)) all_comps) @ |
|
431 |
constrains)) |
|
432 |
in [fx,cs] end |
|
433 |
) |
|
434 |
||
26478 | 435 |
|
436 |
in thy |
|
437 |
|> namespace_definition |
|
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
438 |
(suffix namespaceN name) nameT (parents_expr,[]) |
25171 | 439 |
(map fst parent_comps) (map fst components) |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
440 |
|> Context.theory_map (add_statespace full_name args (map snd parents) components []) |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
441 |
|> add_locale (suffix valuetypesN name) (locinsts,locs) [] |
45362 | 442 |
|> Proof_Context.theory_of |
26478 | 443 |
|> fold interprete_parent_valuetypes parents |
29247
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
444 |
|> add_locale_cmd name |
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
445 |
([(suffix namespaceN full_name ,(("",false),Expression.Named [])), |
95d3a82857e5
adapted statespace module to new locales;
Norbert Schirmer <norbert.schirmer@web.de>
parents:
29064
diff
changeset
|
446 |
(suffix valuetypesN full_name,(("",false),Expression.Named []))],[]) fixestate |
45362 | 447 |
|> Proof_Context.theory_of |
25171 | 448 |
|> fold interprete_parent parents |
38389
d7d915bae307
Named_Target.init: empty string represents theory target
haftmann
parents:
38350
diff
changeset
|
449 |
|> add_declaration full_name (declare_declinfo components') |
25171 | 450 |
end; |
451 |
||
452 |
||
453 |
(* prepare arguments *) |
|
454 |
||
27283 | 455 |
fun read_raw_parent ctxt raw_T = |
42361 | 456 |
(case Proof_Context.read_typ_abbrev ctxt raw_T of |
25171 | 457 |
Type (name, Ts) => (Ts, name) |
27283 | 458 |
| T => error ("Bad parent statespace specification: " ^ Syntax.string_of_typ ctxt T)); |
25171 | 459 |
|
36149 | 460 |
fun read_typ ctxt raw_T env = |
461 |
let |
|
462 |
val ctxt' = fold (Variable.declare_typ o TFree) env ctxt; |
|
463 |
val T = Syntax.read_typ ctxt' raw_T; |
|
45741 | 464 |
val env' = Term.add_tfreesT T env; |
36149 | 465 |
in (T, env') end; |
466 |
||
467 |
fun cert_typ ctxt raw_T env = |
|
468 |
let |
|
42361 | 469 |
val thy = Proof_Context.theory_of ctxt; |
36149 | 470 |
val T = Type.no_tvars (Sign.certify_typ thy raw_T) |
471 |
handle TYPE (msg, _, _) => error msg; |
|
45741 | 472 |
val env' = Term.add_tfreesT T env; |
36149 | 473 |
in (T, env') end; |
474 |
||
25171 | 475 |
fun gen_define_statespace prep_typ state_space args name parents comps thy = |
476 |
let (* - args distinct |
|
477 |
- only args may occur in comps and parent-instantiations |
|
26478 | 478 |
- number of insts must match parent args |
25171 | 479 |
- no duplicate renamings |
480 |
- renaming should occur in namespace |
|
481 |
*) |
|
26478 | 482 |
val _ = writeln ("Defining statespace " ^ quote name ^ " ..."); |
25171 | 483 |
|
42361 | 484 |
val ctxt = Proof_Context.init_global thy; |
27283 | 485 |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
486 |
fun add_parent (prefix, (Ts, pname, rs)) env = |
25171 | 487 |
let |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
488 |
val prefix' = |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
489 |
(case prefix of |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
490 |
("", mandatory) => (pname, mandatory) |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
491 |
| _ => prefix); |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
492 |
|
28965 | 493 |
val full_pname = Sign.full_bname thy pname; |
26478 | 494 |
val {args,components,...} = |
25171 | 495 |
(case get_statespace (Context.Theory thy) full_pname of |
496 |
SOME r => r |
|
497 |
| NONE => error ("Undefined statespace " ^ quote pname)); |
|
498 |
||
499 |
||
27283 | 500 |
val (Ts',env') = fold_map (prep_typ ctxt) Ts env |
26478 | 501 |
handle ERROR msg => cat_error msg |
36149 | 502 |
("The error(s) above occurred in parent statespace specification " |
25171 | 503 |
^ quote pname); |
504 |
val err_insts = if length args <> length Ts' then |
|
505 |
["number of type instantiation(s) does not match arguments of parent statespace " |
|
506 |
^ quote pname] |
|
507 |
else []; |
|
26478 | 508 |
|
25171 | 509 |
val rnames = map fst rs |
510 |
val err_dup_renamings = (case duplicates (op =) rnames of |
|
511 |
[] => [] |
|
512 |
| dups => ["Duplicate renaming(s) for " ^ commas dups]) |
|
513 |
||
514 |
val cnames = map fst components; |
|
36692
54b64d4ad524
farewell to old-style mem infixes -- type inference in situations with mem_int and mem_string should provide enough information to resolve the type of (op =)
haftmann
parents:
36610
diff
changeset
|
515 |
val err_rename_unknowns = (case subtract (op =) cnames rnames of |
25171 | 516 |
[] => [] |
517 |
| rs => ["Unknown components " ^ commas rs]); |
|
26478 | 518 |
|
25171 | 519 |
|
520 |
val rs' = map (AList.lookup (op =) rs o fst) components; |
|
521 |
val errs =err_insts @ err_dup_renamings @ err_rename_unknowns |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
522 |
in |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
523 |
if null errs then ((prefix', (Ts', full_pname, rs')), env') |
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
524 |
else error (cat_lines (errs @ ["in parent statespace " ^ quote pname])) |
25171 | 525 |
end; |
26478 | 526 |
|
25171 | 527 |
val (parents',env) = fold_map add_parent parents []; |
528 |
||
529 |
val err_dup_args = |
|
530 |
(case duplicates (op =) args of |
|
531 |
[] => [] |
|
532 |
| dups => ["Duplicate type argument(s) " ^ commas dups]); |
|
26478 | 533 |
|
25171 | 534 |
|
26478 | 535 |
val err_dup_components = |
25171 | 536 |
(case duplicates (op =) (map fst comps) of |
537 |
[] => [] |
|
538 |
| dups => ["Duplicate state-space components " ^ commas dups]); |
|
539 |
||
540 |
fun prep_comp (n,T) env = |
|
27283 | 541 |
let val (T', env') = prep_typ ctxt T env handle ERROR msg => |
36149 | 542 |
cat_error msg ("The error(s) above occurred in component " ^ quote n) |
25171 | 543 |
in ((n,T'), env') end; |
544 |
||
545 |
val (comps',env') = fold_map prep_comp comps env; |
|
546 |
||
547 |
val err_extra_frees = |
|
548 |
(case subtract (op =) args (map fst env') of |
|
549 |
[] => [] |
|
550 |
| extras => ["Extra free type variable(s) " ^ commas extras]); |
|
551 |
||
552 |
val defaultS = Sign.defaultS thy; |
|
553 |
val args' = map (fn x => (x, AList.lookup (op =) env x |> the_default defaultS)) args; |
|
554 |
||
555 |
||
556 |
fun fst_eq ((x:string,_),(y,_)) = x = y; |
|
26478 | 557 |
fun snd_eq ((_,t:typ),(_,u)) = t = u; |
25171 | 558 |
|
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
559 |
val raw_parent_comps = maps (parent_components thy o snd) parents'; |
26478 | 560 |
fun check_type (n,T) = |
25171 | 561 |
(case distinct (snd_eq) (filter (curry fst_eq (n,T)) raw_parent_comps) of |
562 |
[] => [] |
|
563 |
| [_] => [] |
|
45660 | 564 |
| rs => ["Different types for component " ^ quote n ^ ": " ^ |
32432
64f30bdd3ba1
modernized messages -- eliminated ctyp/cterm operations;
wenzelm
parents:
32194
diff
changeset
|
565 |
commas (map (Syntax.string_of_typ ctxt o snd) rs)]) |
26478 | 566 |
|
32952 | 567 |
val err_dup_types = maps check_type (duplicates fst_eq raw_parent_comps) |
25171 | 568 |
|
569 |
val parent_comps = distinct (fst_eq) raw_parent_comps; |
|
570 |
val all_comps = parent_comps @ comps'; |
|
571 |
val err_comp_in_parent = (case duplicates (op =) (map fst all_comps) of |
|
572 |
[] => [] |
|
45660 | 573 |
| xs => ["Components already defined in parents: " ^ commas_quote xs]); |
25171 | 574 |
val errs = err_dup_args @ err_dup_components @ err_extra_frees @ |
575 |
err_dup_types @ err_comp_in_parent; |
|
26478 | 576 |
in if null errs |
25171 | 577 |
then thy |> statespace_definition state_space args' name parents' parent_comps comps' |
26478 | 578 |
else error (cat_lines errs) |
25171 | 579 |
end |
580 |
handle ERROR msg => cat_error msg ("Failed to define statespace " ^ quote name); |
|
26478 | 581 |
|
36149 | 582 |
val define_statespace = gen_define_statespace read_typ NONE; |
583 |
val define_statespace_i = gen_define_statespace cert_typ; |
|
26478 | 584 |
|
25171 | 585 |
|
45362 | 586 |
|
25171 | 587 |
(*** parse/print - translations ***) |
588 |
||
589 |
local |
|
26478 | 590 |
fun map_get_comp f ctxt (Free (name,_)) = |
591 |
(case (get_comp ctxt name) of |
|
592 |
SOME (T,_) => f T T dummyT |
|
25171 | 593 |
| NONE => (Syntax.free "arbitrary"(*; error "context not ready"*))) |
594 |
| map_get_comp _ _ _ = Syntax.free "arbitrary"; |
|
595 |
||
596 |
val get_comp_projection = map_get_comp project_free; |
|
597 |
val get_comp_injection = map_get_comp inject_free; |
|
598 |
||
599 |
fun name_of (Free (n,_)) = n; |
|
600 |
in |
|
601 |
||
26478 | 602 |
fun gen_lookup_tr ctxt s n = |
45362 | 603 |
(case get_comp (Context.Proof ctxt) n of |
604 |
SOME (T, _) => |
|
605 |
Syntax.const @{const_name StateFun.lookup} $ |
|
606 |
Syntax.free (project_name T) $ Syntax.free n $ s |
|
607 |
| NONE => |
|
608 |
if get_silent (Context.Proof ctxt) |
|
609 |
then Syntax.const @{const_name StateFun.lookup} $ |
|
610 |
Syntax.const @{const_syntax undefined} $ Syntax.free n $ s |
|
45660 | 611 |
else raise TERM ("StateSpace.gen_lookup_tr: component " ^ quote n ^ " not defined", [])); |
25171 | 612 |
|
42052
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
613 |
fun lookup_tr ctxt [s, x] = |
42264 | 614 |
(case Term_Position.strip_positions x of |
42052
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
615 |
Free (n,_) => gen_lookup_tr ctxt s n |
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
616 |
| _ => raise Match); |
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
617 |
|
25171 | 618 |
fun lookup_swap_tr ctxt [Free (n,_),s] = gen_lookup_tr ctxt s n; |
619 |
||
45362 | 620 |
fun lookup_tr' ctxt [_ $ Free (prj, _), n as (_ $ Free (name, _)), s] = |
621 |
(case get_comp (Context.Proof ctxt) name of |
|
622 |
SOME (T, _) => |
|
623 |
if prj = project_name T |
|
624 |
then Syntax.const "_statespace_lookup" $ s $ n |
|
625 |
else raise Match |
|
25171 | 626 |
| NONE => raise Match) |
627 |
| lookup_tr' _ ts = raise Match; |
|
628 |
||
26478 | 629 |
fun gen_update_tr id ctxt n v s = |
25171 | 630 |
let |
45362 | 631 |
fun pname T = if id then @{const_name Fun.id} else project_name T; |
632 |
fun iname T = if id then @{const_name Fun.id} else inject_name T; |
|
633 |
in |
|
634 |
(case get_comp (Context.Proof ctxt) n of |
|
635 |
SOME (T, _) => |
|
636 |
Syntax.const @{const_name StateFun.update} $ |
|
637 |
Syntax.free (pname T) $ Syntax.free (iname T) $ |
|
638 |
Syntax.free n $ (Syntax.const @{const_name K_statefun} $ v) $ s |
|
639 |
| NONE => |
|
640 |
if get_silent (Context.Proof ctxt) then |
|
641 |
Syntax.const @{const_name StateFun.update} $ |
|
642 |
Syntax.const @{const_syntax undefined} $ Syntax.const @{const_syntax undefined} $ |
|
643 |
Syntax.free n $ (Syntax.const @{const_name K_statefun} $ v) $ s |
|
644 |
else raise TERM ("StateSpace.gen_update_tr: component " ^ n ^ " not defined", [])) |
|
25171 | 645 |
end; |
646 |
||
42052
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
647 |
fun update_tr ctxt [s, x, v] = |
42264 | 648 |
(case Term_Position.strip_positions x of |
42052
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
649 |
Free (n, _) => gen_update_tr false ctxt n v s |
34f1d2d81284
statespace syntax: strip positions -- type constraints are unexpected here;
wenzelm
parents:
41585
diff
changeset
|
650 |
| _ => raise Match); |
25171 | 651 |
|
45362 | 652 |
fun update_tr' ctxt |
653 |
[_ $ Free (prj, _), _ $ Free (inj, _), n as (_ $ Free (name, _)), (Const (k, _) $ v), s] = |
|
654 |
if Long_Name.base_name k = Long_Name.base_name @{const_name K_statefun} then |
|
25171 | 655 |
(case get_comp (Context.Proof ctxt) name of |
45362 | 656 |
SOME (T, _) => |
657 |
if inj = inject_name T andalso prj = project_name T then |
|
658 |
Syntax.const "_statespace_update" $ s $ n $ v |
|
659 |
else raise Match |
|
660 |
| NONE => raise Match) |
|
25171 | 661 |
else raise Match |
662 |
| update_tr' _ _ = raise Match; |
|
663 |
||
664 |
end; |
|
665 |
||
666 |
||
667 |
(*** outer syntax *) |
|
668 |
||
45362 | 669 |
local |
670 |
||
25171 | 671 |
val type_insts = |
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36958
diff
changeset
|
672 |
Parse.typ >> single || |
46949 | 673 |
@{keyword "("} |-- Parse.!!! (Parse.list1 Parse.typ --| @{keyword ")"}) |
25171 | 674 |
|
46949 | 675 |
val comp = Parse.name -- (@{keyword "::"} |-- Parse.!!! Parse.typ); |
25171 | 676 |
fun plus1_unless test scan = |
46949 | 677 |
scan ::: Scan.repeat (@{keyword "+"} |-- Scan.unless test (Parse.!!! scan)); |
25171 | 678 |
|
46949 | 679 |
val mapsto = @{keyword "="}; |
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36958
diff
changeset
|
680 |
val rename = Parse.name -- (mapsto |-- Parse.name); |
46949 | 681 |
val renames = Scan.optional (@{keyword "["} |-- Parse.!!! (Parse.list1 rename --| @{keyword "]"})) []; |
25171 | 682 |
|
45362 | 683 |
val parent = |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
684 |
Parse_Spec.locale_prefix false -- |
45362 | 685 |
((type_insts -- Parse.xname) || (Parse.xname >> pair [])) -- renames |
49754
acafcac41690
more explicit namespace prefix for 'statespace' -- duplicate facts;
wenzelm
parents:
48741
diff
changeset
|
686 |
>> (fn ((prefix, (insts, name)), renames) => (prefix, (insts, name, renames))); |
25171 | 687 |
|
45362 | 688 |
in |
25171 | 689 |
|
690 |
val statespace_decl = |
|
45362 | 691 |
Parse.type_args -- Parse.name -- |
46949 | 692 |
(@{keyword "="} |-- |
45362 | 693 |
((Scan.repeat1 comp >> pair []) || |
694 |
(plus1_unless comp parent -- |
|
46949 | 695 |
Scan.optional (@{keyword "+"} |-- Parse.!!! (Scan.repeat1 comp)) []))); |
45362 | 696 |
val _ = |
50214 | 697 |
Outer_Syntax.command @{command_spec "statespace"} "define state-space as locale context" |
45362 | 698 |
(statespace_decl >> (fn ((args, name), (parents, comps)) => |
699 |
Toplevel.theory (define_statespace args name parents comps))); |
|
25171 | 700 |
|
45362 | 701 |
end; |
25171 | 702 |
|
45362 | 703 |
end; |