author | blanchet |
Mon, 06 Dec 2010 13:29:23 +0100 | |
changeset 40996 | 63112be4a469 |
parent 39134 | 917b4b6ba3d2 |
child 42016 | 3b6826b3ed37 |
permissions | -rw-r--r-- |
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(* Title: Pure/theory.ML |
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Author: Lawrence C Paulson and Markus Wenzel |
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Logical theory content: axioms, definitions, and begin/end wrappers. |
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*) |
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removed obsolete SIGN_THEORY -- no name aliases in structure Theory;
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signature THEORY = |
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moved theory stuff (add_defs etc.) here from drule.ML;
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sig |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val eq_thy: theory * theory -> bool |
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val subthy: theory * theory -> bool |
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val assert_super: theory -> theory -> theory |
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val parents_of: theory -> theory list |
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val ancestors_of: theory -> theory list |
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val check_thy: theory -> theory_ref |
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val deref: theory_ref -> theory |
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val merge: theory * theory -> theory |
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val merge_refs: theory_ref * theory_ref -> theory_ref |
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val merge_list: theory list -> theory |
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val checkpoint: theory -> theory |
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val copy: theory -> theory |
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val requires: theory -> string -> string -> unit |
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val axiom_space: theory -> Name_Space.T |
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val axiom_table: theory -> term Symtab.table |
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val axioms_of: theory -> (string * term) list |
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val all_axioms_of: theory -> (string * term) list |
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val defs_of: theory -> Defs.T |
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val at_begin: (theory -> theory option) -> theory -> theory |
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val at_end: (theory -> theory option) -> theory -> theory |
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val begin_theory: string -> theory list -> theory |
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val end_theory: theory -> theory |
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replaced Theory.add_axioms(_i) by more primitive Theory.add_axiom;
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val add_axiom: binding * term -> theory -> theory |
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val add_deps: string -> string * typ -> (string * typ) list -> theory -> theory |
35985
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
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val add_def: bool -> bool -> binding * term -> theory -> theory |
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val add_finals_i: bool -> term list -> theory -> theory |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val add_finals: bool -> string list -> theory -> theory |
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eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
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val specify_const: (binding * typ) * mixfix -> theory -> term * theory |
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end |
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structure Theory: THEORY = |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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struct |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
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(** theory context operations **) |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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|
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val eq_thy = Context.eq_thy; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val subthy = Context.subthy; |
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fun assert_super thy1 thy2 = |
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introduced generic concepts for theory interpretators
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if subthy (thy1, thy2) then thy2 |
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else raise THEORY ("Not a super theory", [thy1, thy2]); |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val parents_of = Context.parents_of; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val ancestors_of = Context.ancestors_of; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
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val check_thy = Context.check_thy; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val deref = Context.deref; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val merge = Context.merge; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val merge_refs = Context.merge_refs; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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fun merge_list [] = raise THEORY ("Empty merge of theories", []) |
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| merge_list (thy :: thys) = Library.foldl merge (thy, thys); |
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val checkpoint = Context.checkpoint_thy; |
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val copy = Context.copy_thy; |
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fun requires thy name what = |
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if exists (fn thy' => Context.theory_name thy' = name) (thy :: ancestors_of thy) then () |
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else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what); |
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(** datatype thy **) |
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type wrapper = (theory -> theory option) * stamp; |
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fun apply_wrappers (wrappers: wrapper list) = |
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perhaps (perhaps_loop (perhaps_apply (map fst wrappers))); |
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datatype thy = Thy of |
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{axioms: term Name_Space.table, |
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defs: Defs.T, |
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wrappers: wrapper list * wrapper list}; |
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fun make_thy (axioms, defs, wrappers) = Thy {axioms = axioms, defs = defs, wrappers = wrappers}; |
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discontinued old TheoryDataFun, but retain Theory_Data_PP with is Pretty.pp argument to merge (still required in exotic situations -- hard to get rid of);
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structure ThyData = Theory_Data_PP |
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( |
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type T = thy; |
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val empty_axioms = Name_Space.empty_table "axiom" : term Name_Space.table; |
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val empty = make_thy (empty_axioms, Defs.empty, ([], [])); |
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fun extend (Thy {axioms = _, defs, wrappers}) = make_thy (empty_axioms, defs, wrappers); |
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fun merge pp (thy1, thy2) = |
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let |
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val Thy {axioms = _, defs = defs1, wrappers = (bgs1, ens1)} = thy1; |
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val Thy {axioms = _, defs = defs2, wrappers = (bgs2, ens2)} = thy2; |
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val axioms' = empty_axioms; |
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val defs' = Defs.merge pp (defs1, defs2); |
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val bgs' = Library.merge (eq_snd op =) (bgs1, bgs2); |
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val ens' = Library.merge (eq_snd op =) (ens1, ens2); |
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in make_thy (axioms', defs', (bgs', ens')) end; |
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); |
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fun rep_theory thy = ThyData.get thy |> (fn Thy args => args); |
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fun map_thy f = ThyData.map (fn (Thy {axioms, defs, wrappers}) => |
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make_thy (f (axioms, defs, wrappers))); |
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fun map_axioms f = map_thy (fn (axioms, defs, wrappers) => (f axioms, defs, wrappers)); |
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fun map_defs f = map_thy (fn (axioms, defs, wrappers) => (axioms, f defs, wrappers)); |
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fun map_wrappers f = map_thy (fn (axioms, defs, wrappers) => (axioms, defs, f wrappers)); |
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(* basic operations *) |
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val axiom_space = #1 o #axioms o rep_theory; |
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val axiom_table = #2 o #axioms o rep_theory; |
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val axioms_of = Symtab.dest o #2 o #axioms o rep_theory; |
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fun all_axioms_of thy = maps axioms_of (thy :: ancestors_of thy); |
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val defs_of = #defs o rep_theory; |
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(* begin/end theory *) |
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val begin_wrappers = rev o #1 o #wrappers o rep_theory; |
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val end_wrappers = rev o #2 o #wrappers o rep_theory; |
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fun at_begin f = map_wrappers (apfst (cons (f, stamp ()))); |
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fun at_end f = map_wrappers (apsnd (cons (f, stamp ()))); |
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fun begin_theory name imports = |
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let |
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val thy = Context.begin_thy Syntax.pp_global name imports; |
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val wrappers = begin_wrappers thy; |
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in |
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thy |
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|> Sign.local_path |
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|> Sign.map_naming (Name_Space.set_theory_name name) |
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|> apply_wrappers wrappers |
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end; |
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fun end_theory thy = |
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thy |> apply_wrappers (end_wrappers thy) |> Context.finish_thy; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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35985
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
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(** primitive specifications **) |
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35985
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(* raw axioms *) |
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fun cert_axm thy (b, raw_tm) = |
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let |
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val t = Sign.cert_prop thy raw_tm |
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handle TYPE (msg, _, _) => error msg |
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| TERM (msg, _) => error msg; |
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val _ = Term.no_dummy_patterns t handle TERM (msg, _) => error msg; |
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disallow sort constraints in primitive Theory.add_axiom/add_def -- handled in Thm.add_axiom/add_def;
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163 |
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val ctxt = Syntax.init_pretty_global thy |
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|> Config.put show_sorts true; |
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val bad_sorts = |
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rev ((fold_types o fold_atyps_sorts) (fn (_, []) => I | (T, _) => insert (op =) T) t []); |
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val _ = null bad_sorts orelse |
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error ("Illegal sort constraints in primitive specification: " ^ |
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commas (map (Syntax.string_of_typ ctxt) bad_sorts)); |
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in |
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(b, Sign.no_vars (Syntax.init_pretty_global thy) t) |
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end handle ERROR msg => |
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disallow sort constraints in primitive Theory.add_axiom/add_def -- handled in Thm.add_axiom/add_def;
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174 |
cat_error msg ("The error(s) above occurred in axiom " ^ quote (Binding.str_of b)); |
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35857
28e73b3e7b6c
replaced Theory.add_axioms(_i) by more primitive Theory.add_axiom;
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176 |
fun add_axiom raw_axm thy = thy |> map_axioms (fn axioms => |
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let |
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replaced Theory.add_axioms(_i) by more primitive Theory.add_axiom;
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val axm = apsnd Logic.varify_global (cert_axm thy raw_axm); |
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val (_, axioms') = Name_Space.define true (Sign.naming_of thy) axm axioms; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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in axioms' end); |
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||
19708
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added add_deps, which actually records dependencies of consts (unlike add_finals);
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183 |
(* dependencies *) |
a508bde37a81
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184 |
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fun dependencies thy unchecked def description lhs rhs = |
19708
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added add_deps, which actually records dependencies of consts (unlike add_finals);
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186 |
let |
39133
70d3915c92f0
pretty printing: prefer regular Proof.context over Pretty.pp, which is mostly for special bootstrap purposes involving theory merge, for example;
wenzelm
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36610
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187 |
val ctxt = Syntax.init_pretty_global thy; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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diff
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188 |
val consts = Sign.consts_of thy; |
19727 | 189 |
fun prep const = |
39133
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pretty printing: prefer regular Proof.context over Pretty.pp, which is mostly for special bootstrap purposes involving theory merge, for example;
wenzelm
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36610
diff
changeset
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190 |
let val Const (c, T) = Sign.no_vars ctxt (Const const) |
35845
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renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
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191 |
in (c, Consts.typargs consts (c, Logic.varifyT_global T)) end; |
19708
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added add_deps, which actually records dependencies of consts (unlike add_finals);
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19700
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192 |
|
a508bde37a81
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193 |
val lhs_vars = Term.add_tfreesT (#2 lhs) []; |
a508bde37a81
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194 |
val rhs_extras = fold (#2 #> Term.fold_atyps (fn TFree v => |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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195 |
if member (op =) lhs_vars v then I else insert (op =) v | _ => I)) rhs []; |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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196 |
val _ = |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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|
197 |
if null rhs_extras then () |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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parents:
19700
diff
changeset
|
198 |
else error ("Specification depends on extra type variables: " ^ |
39133
70d3915c92f0
pretty printing: prefer regular Proof.context over Pretty.pp, which is mostly for special bootstrap purposes involving theory merge, for example;
wenzelm
parents:
36610
diff
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|
199 |
commas_quote (map (Syntax.string_of_typ ctxt o TFree) rhs_extras) ^ |
33701
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200 |
"\nThe error(s) above occurred in " ^ quote description); |
39133
70d3915c92f0
pretty printing: prefer regular Proof.context over Pretty.pp, which is mostly for special bootstrap purposes involving theory merge, for example;
wenzelm
parents:
36610
diff
changeset
|
201 |
in Defs.define (Syntax.pp ctxt) unchecked def description (prep lhs) (map prep rhs) end; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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parents:
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diff
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|
202 |
|
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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diff
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|
203 |
fun add_deps a raw_lhs raw_rhs thy = |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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parents:
19700
diff
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|
204 |
let |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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diff
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|
205 |
val lhs :: rhs = map (dest_Const o Sign.cert_term thy o Const) (raw_lhs :: raw_rhs); |
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
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206 |
val description = if a = "" then #1 lhs ^ " axiom" else a; |
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
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207 |
in thy |> map_defs (dependencies thy false NONE description lhs rhs) end; |
17706 | 208 |
|
33173
b8ca12f6681a
eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
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209 |
fun specify_const decl thy = |
b8ca12f6681a
eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
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parents:
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210 |
let val (t as Const const, thy') = Sign.declare_const decl thy |
28112
691993ef6abe
simplified specify_const: canonical args, global deps;
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211 |
in (t, add_deps "" const [] thy') end; |
25017 | 212 |
|
17706 | 213 |
|
35985
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
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214 |
(* overloading *) |
9280 | 215 |
|
16944 | 216 |
fun check_overloading thy overloaded (c, T) = |
16291 | 217 |
let |
24763 | 218 |
val declT = Sign.the_const_constraint thy c |
219 |
handle TYPE (msg, _, _) => error msg; |
|
35845
e5980f0ad025
renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
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220 |
val T' = Logic.varifyT_global T; |
16944 | 221 |
|
39134
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
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222 |
val ctxt = Syntax.init_pretty_global thy; |
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
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223 |
fun message sorts txt = |
16944 | 224 |
[Pretty.block [Pretty.str "Specification of constant ", |
39134
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
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225 |
Pretty.str c, Pretty.str " ::", Pretty.brk 1, |
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
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226 |
Pretty.quote (Syntax.pretty_typ (Config.put show_sorts sorts ctxt) T)], |
16944 | 227 |
Pretty.str txt] |> Pretty.chunks |> Pretty.string_of; |
16291 | 228 |
in |
16944 | 229 |
if Sign.typ_instance thy (declT, T') then () |
230 |
else if Type.raw_instance (declT, T') then |
|
39134
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turned show_sorts/show_types into proper configuration options;
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231 |
error (message true "imposes additional sort constraints on the constant declaration") |
16944 | 232 |
else if overloaded then () |
39134
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turned show_sorts/show_types into proper configuration options;
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233 |
else warning (message false "is strictly less general than the declared type") |
9280 | 234 |
end; |
235 |
||
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
236 |
|
35985
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
237 |
(* definitional axioms *) |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
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parents:
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diff
changeset
|
238 |
|
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
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parents:
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diff
changeset
|
239 |
local |
16291 | 240 |
|
29581 | 241 |
fun check_def thy unchecked overloaded (b, tm) defs = |
16291 | 242 |
let |
36610
bafd82950e24
renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
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diff
changeset
|
243 |
val ctxt = ProofContext.init_global thy; |
29581 | 244 |
val name = Sign.full_name thy b; |
35988
76ca601c941e
disallow premises in primitive Theory.add_def -- handle in Thm.add_def;
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diff
changeset
|
245 |
val ((lhs, rhs), _) = Primitive_Defs.dest_def ctxt Term.is_Const (K false) (K false) tm |
76ca601c941e
disallow premises in primitive Theory.add_def -- handle in Thm.add_def;
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parents:
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diff
changeset
|
246 |
handle TERM (msg, _) => error msg; |
76ca601c941e
disallow premises in primitive Theory.add_def -- handle in Thm.add_def;
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|
247 |
val lhs_const = Term.dest_Const (Term.head_of lhs); |
16944 | 248 |
val rhs_consts = fold_aterms (fn Const const => insert (op =) const | _ => I) rhs []; |
18943 | 249 |
val _ = check_overloading thy overloaded lhs_const; |
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
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diff
changeset
|
250 |
in defs |> dependencies thy unchecked (SOME name) name lhs_const rhs_consts end |
18678 | 251 |
handle ERROR msg => cat_error msg (Pretty.string_of (Pretty.block |
30218 | 252 |
[Pretty.str ("The error(s) above occurred in definition " ^ quote (Binding.str_of b) ^ ":"), |
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
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parents:
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diff
changeset
|
253 |
Pretty.fbrk, Pretty.quote (Syntax.pretty_term_global thy tm)])); |
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
254 |
|
16291 | 255 |
in |
256 |
||
35985
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
35857
diff
changeset
|
257 |
fun add_def unchecked overloaded raw_axm thy = |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
258 |
let val axm = cert_axm thy raw_axm in |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
259 |
thy |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
260 |
|> map_defs (check_def thy unchecked overloaded axm) |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
261 |
|> add_axiom axm |
0bbf0d2348f9
moved Drule.forall_intr_frees to Thm.forall_intr_frees (in more_thm.ML, which is loaded before pure_thy.ML);
wenzelm
parents:
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diff
changeset
|
262 |
end; |
16291 | 263 |
|
264 |
end; |
|
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
265 |
|
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
266 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
267 |
(* add_finals(_i) *) |
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
268 |
|
16291 | 269 |
local |
270 |
||
17706 | 271 |
fun gen_add_finals prep_term overloaded args thy = |
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
272 |
let |
17706 | 273 |
fun const_of (Const const) = const |
274 |
| const_of (Free _) = error "Attempt to finalize variable (or undeclared constant)" |
|
275 |
| const_of _ = error "Attempt to finalize non-constant term"; |
|
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
276 |
fun specify (c, T) = dependencies thy false NONE (c ^ " axiom") (c, T) []; |
39134
917b4b6ba3d2
turned show_sorts/show_types into proper configuration options;
wenzelm
parents:
39133
diff
changeset
|
277 |
val finalize = specify o tap (check_overloading thy overloaded) o const_of o |
24708 | 278 |
Sign.cert_term thy o prep_term thy; |
17706 | 279 |
in thy |> map_defs (fold finalize args) end; |
16291 | 280 |
|
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
281 |
in |
16291 | 282 |
|
29581 | 283 |
val add_finals_i = gen_add_finals (K I); |
24708 | 284 |
val add_finals = gen_add_finals Syntax.read_term_global; |
16291 | 285 |
|
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
286 |
end; |
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
287 |
|
1526 | 288 |
end; |