src/Pure/Isar/isar_cmd.ML
author wenzelm
Sat Feb 04 21:15:11 2017 +0100 (2017-02-04 ago)
changeset 64986 b81a048960a3
parent 63624 994d1a1105ef
child 67147 dea94b1aabc3
permissions -rw-r--r--
more uniform use of Reconstruct.clean_proof_of;
     1 (*  Title:      Pure/Isar/isar_cmd.ML
     2     Author:     Markus Wenzel, TU Muenchen
     3 
     4 Miscellaneous Isar commands.
     5 *)
     6 
     7 signature ISAR_CMD =
     8 sig
     9   val setup: Input.source -> theory -> theory
    10   val local_setup: Input.source -> Proof.context -> Proof.context
    11   val parse_ast_translation: Input.source -> theory -> theory
    12   val parse_translation: Input.source -> theory -> theory
    13   val print_translation: Input.source -> theory -> theory
    14   val typed_print_translation: Input.source -> theory -> theory
    15   val print_ast_translation: Input.source -> theory -> theory
    16   val translations: (xstring * string) Syntax.trrule list -> theory -> theory
    17   val no_translations: (xstring * string) Syntax.trrule list -> theory -> theory
    18   val oracle: bstring * Position.range -> Input.source -> theory -> theory
    19   val declaration: {syntax: bool, pervasive: bool} -> Input.source -> local_theory -> local_theory
    20   val simproc_setup: string * Position.T -> string list -> Input.source ->
    21     local_theory -> local_theory
    22   val qed: Method.text_range option -> Toplevel.transition -> Toplevel.transition
    23   val terminal_proof: Method.text_range * Method.text_range option ->
    24     Toplevel.transition -> Toplevel.transition
    25   val default_proof: Toplevel.transition -> Toplevel.transition
    26   val immediate_proof: Toplevel.transition -> Toplevel.transition
    27   val done_proof: Toplevel.transition -> Toplevel.transition
    28   val skip_proof: Toplevel.transition -> Toplevel.transition
    29   val ml_diag: bool -> Input.source -> Toplevel.transition -> Toplevel.transition
    30   val diag_state: Proof.context -> Toplevel.state
    31   val diag_goal: Proof.context -> {context: Proof.context, facts: thm list, goal: thm}
    32   val pretty_theorems: bool -> Toplevel.state -> Pretty.T list
    33   val print_stmts: string list * (Facts.ref * Token.src list) list
    34     -> Toplevel.transition -> Toplevel.transition
    35   val print_thms: string list * (Facts.ref * Token.src list) list
    36     -> Toplevel.transition -> Toplevel.transition
    37   val print_prfs: bool -> string list * (Facts.ref * Token.src list) list option
    38     -> Toplevel.transition -> Toplevel.transition
    39   val print_prop: (string list * string) -> Toplevel.transition -> Toplevel.transition
    40   val print_term: (string list * string) -> Toplevel.transition -> Toplevel.transition
    41   val print_type: (string list * (string * string option)) ->
    42     Toplevel.transition -> Toplevel.transition
    43 end;
    44 
    45 structure Isar_Cmd: ISAR_CMD =
    46 struct
    47 
    48 
    49 (** theory declarations **)
    50 
    51 (* generic setup *)
    52 
    53 fun setup source =
    54   ML_Lex.read_source false source
    55   |> ML_Context.expression (Input.range_of source) "setup" "theory -> theory"
    56     "Context.map_theory setup"
    57   |> Context.theory_map;
    58 
    59 fun local_setup source =
    60   ML_Lex.read_source false source
    61   |> ML_Context.expression (Input.range_of source) "local_setup" "local_theory -> local_theory"
    62     "Context.map_proof local_setup"
    63   |> Context.proof_map;
    64 
    65 
    66 (* translation functions *)
    67 
    68 fun parse_ast_translation source =
    69   ML_Lex.read_source false source
    70   |> ML_Context.expression (Input.range_of source) "parse_ast_translation"
    71     "(string * (Proof.context -> Ast.ast list -> Ast.ast)) list"
    72     "Context.map_theory (Sign.parse_ast_translation parse_ast_translation)"
    73   |> Context.theory_map;
    74 
    75 fun parse_translation source =
    76   ML_Lex.read_source false source
    77   |> ML_Context.expression (Input.range_of source) "parse_translation"
    78     "(string * (Proof.context -> term list -> term)) list"
    79     "Context.map_theory (Sign.parse_translation parse_translation)"
    80   |> Context.theory_map;
    81 
    82 fun print_translation source =
    83   ML_Lex.read_source false source
    84   |> ML_Context.expression (Input.range_of source) "print_translation"
    85     "(string * (Proof.context -> term list -> term)) list"
    86     "Context.map_theory (Sign.print_translation print_translation)"
    87   |> Context.theory_map;
    88 
    89 fun typed_print_translation source =
    90   ML_Lex.read_source false source
    91   |> ML_Context.expression (Input.range_of source) "typed_print_translation"
    92     "(string * (Proof.context -> typ -> term list -> term)) list"
    93     "Context.map_theory (Sign.typed_print_translation typed_print_translation)"
    94   |> Context.theory_map;
    95 
    96 fun print_ast_translation source =
    97   ML_Lex.read_source false source
    98   |> ML_Context.expression (Input.range_of source) "print_ast_translation"
    99     "(string * (Proof.context -> Ast.ast list -> Ast.ast)) list"
   100     "Context.map_theory (Sign.print_ast_translation print_ast_translation)"
   101   |> Context.theory_map;
   102 
   103 
   104 (* translation rules *)
   105 
   106 fun read_trrules thy raw_rules =
   107   let
   108     val ctxt = Proof_Context.init_global thy;
   109     val read_root =
   110       #1 o dest_Type o Proof_Context.read_type_name {proper = true, strict = false} ctxt;
   111   in
   112     raw_rules
   113     |> map (Syntax.map_trrule (fn (r, s) => Syntax_Phases.parse_ast_pattern ctxt (read_root r, s)))
   114   end;
   115 
   116 fun translations args thy = Sign.add_trrules (read_trrules thy args) thy;
   117 fun no_translations args thy = Sign.del_trrules (read_trrules thy args) thy;
   118 
   119 
   120 (* oracles *)
   121 
   122 fun oracle (name, range) source =
   123   let
   124     val body_range = Input.range_of source;
   125     val body = ML_Lex.read_source false source;
   126 
   127     val ants =
   128       ML_Lex.read
   129        ("local\n\
   130         \  val binding = " ^ ML_Syntax.make_binding (name, #1 range) ^ ";\n\
   131         \  val") @ ML_Lex.read_set_range body_range "oracle" @ ML_Lex.read "=" @ body @
   132         ML_Lex.read (";\nin\n\
   133         \  val") @ ML_Lex.read_set_range range name @ ML_Lex.read "=\
   134         \ snd (Context.>>> (Context.map_theory_result (Thm.add_oracle (binding, oracle))));\n\
   135         \end;\n";
   136   in
   137     Context.theory_map
   138       (ML_Context.exec (fn () => ML_Context.eval ML_Compiler.flags (#1 body_range) ants))
   139   end;
   140 
   141 
   142 (* declarations *)
   143 
   144 fun declaration {syntax, pervasive} source =
   145   ML_Lex.read_source false source
   146   |> ML_Context.expression (Input.range_of source) "declaration" "Morphism.declaration"
   147     ("Context.map_proof (Local_Theory.declaration {syntax = " ^ Bool.toString syntax ^ ", \
   148       \pervasive = " ^ Bool.toString pervasive ^ "} declaration)")
   149   |> Context.proof_map;
   150 
   151 
   152 (* simprocs *)
   153 
   154 fun simproc_setup name lhss source =
   155   ML_Lex.read_source false source
   156   |> ML_Context.expression (Input.range_of source) "proc"
   157     "Morphism.morphism -> Proof.context -> cterm -> thm option"
   158     ("Context.map_proof (Simplifier.define_simproc_cmd " ^
   159       ML_Syntax.atomic (ML_Syntax.make_binding name) ^
   160       "{lhss = " ^ ML_Syntax.print_strings lhss ^ ", proc = proc})")
   161   |> Context.proof_map;
   162 
   163 
   164 (* local endings *)
   165 
   166 fun local_qed m = Toplevel.proof (Proof.local_qed (m, true));
   167 val local_terminal_proof = Toplevel.proof o Proof.local_future_terminal_proof;
   168 val local_default_proof = Toplevel.proof Proof.local_default_proof;
   169 val local_immediate_proof = Toplevel.proof Proof.local_immediate_proof;
   170 val local_done_proof = Toplevel.proof Proof.local_done_proof;
   171 val local_skip_proof = Toplevel.proof' Proof.local_skip_proof;
   172 
   173 
   174 (* global endings *)
   175 
   176 fun global_qed m = Toplevel.end_proof (K (Proof.global_qed (m, true)));
   177 val global_terminal_proof = Toplevel.end_proof o K o Proof.global_future_terminal_proof;
   178 val global_default_proof = Toplevel.end_proof (K Proof.global_default_proof);
   179 val global_immediate_proof = Toplevel.end_proof (K Proof.global_immediate_proof);
   180 val global_skip_proof = Toplevel.end_proof Proof.global_skip_proof;
   181 val global_done_proof = Toplevel.end_proof (K Proof.global_done_proof);
   182 
   183 
   184 (* common endings *)
   185 
   186 fun qed m = local_qed m o global_qed m;
   187 fun terminal_proof m = local_terminal_proof m o global_terminal_proof m;
   188 val default_proof = local_default_proof o global_default_proof;
   189 val immediate_proof = local_immediate_proof o global_immediate_proof;
   190 val done_proof = local_done_proof o global_done_proof;
   191 val skip_proof = local_skip_proof o global_skip_proof;
   192 
   193 
   194 (* diagnostic ML evaluation *)
   195 
   196 structure Diag_State = Proof_Data
   197 (
   198   type T = Toplevel.state;
   199   fun init _ = Toplevel.toplevel;
   200 );
   201 
   202 fun ml_diag verbose source = Toplevel.keep (fn state =>
   203   let
   204     val opt_ctxt =
   205       try Toplevel.generic_theory_of state
   206       |> Option.map (Context.proof_of #> Diag_State.put state);
   207     val flags = ML_Compiler.verbose verbose ML_Compiler.flags;
   208   in ML_Context.eval_source_in opt_ctxt flags source end);
   209 
   210 val diag_state = Diag_State.get;
   211 val diag_goal = Proof.goal o Toplevel.proof_of o diag_state;
   212 
   213 val _ = Theory.setup
   214   (ML_Antiquotation.value (Binding.qualify true "Isar" @{binding state})
   215     (Scan.succeed "Isar_Cmd.diag_state ML_context") #>
   216    ML_Antiquotation.value (Binding.qualify true "Isar" @{binding goal})
   217     (Scan.succeed "Isar_Cmd.diag_goal ML_context"));
   218 
   219 
   220 (* theorems of theory or proof context *)
   221 
   222 fun pretty_theorems verbose st =
   223   if Toplevel.is_proof st then
   224     Proof_Context.pretty_local_facts verbose (Toplevel.context_of st)
   225   else
   226     let
   227       val ctxt = Toplevel.context_of st;
   228       val prev_thys =
   229         (case Toplevel.previous_context_of st of
   230           SOME prev => [Proof_Context.theory_of prev]
   231         | NONE => Theory.parents_of (Proof_Context.theory_of ctxt));
   232     in Proof_Display.pretty_theorems_diff verbose prev_thys ctxt end;
   233 
   234 
   235 (* print theorems, terms, types etc. *)
   236 
   237 local
   238 
   239 fun string_of_stmts ctxt args =
   240   Attrib.eval_thms ctxt args
   241   |> map (Element.pretty_statement ctxt Thm.theoremK)
   242   |> Pretty.chunks2 |> Pretty.string_of;
   243 
   244 fun string_of_thms ctxt args =
   245   Pretty.string_of (Proof_Context.pretty_fact ctxt ("", Attrib.eval_thms ctxt args));
   246 
   247 fun string_of_prfs full state arg =
   248   Pretty.string_of
   249     (case arg of
   250       NONE =>
   251         let
   252           val {context = ctxt, goal = thm} = Proof.simple_goal (Toplevel.proof_of state);
   253           val prf = Thm.proof_of thm;
   254           val prop = Thm.full_prop_of thm;
   255           val prf' = Proofterm.rewrite_proof_notypes ([], []) prf;
   256         in
   257           Proof_Syntax.pretty_proof ctxt
   258             (if full then Reconstruct.reconstruct_proof ctxt prop prf' else prf')
   259         end
   260     | SOME srcs =>
   261         let
   262           val ctxt = Toplevel.context_of state;
   263           val pretty_proof = Proof_Syntax.pretty_clean_proof_of ctxt full;
   264         in Pretty.chunks (map pretty_proof (Attrib.eval_thms ctxt srcs)) end);
   265 
   266 fun string_of_prop ctxt s =
   267   let
   268     val prop = Syntax.read_prop ctxt s;
   269     val ctxt' = Variable.auto_fixes prop ctxt;
   270   in Pretty.string_of (Pretty.quote (Syntax.pretty_term ctxt' prop)) end;
   271 
   272 fun string_of_term ctxt s =
   273   let
   274     val t = Syntax.read_term ctxt s;
   275     val T = Term.type_of t;
   276     val ctxt' = Variable.auto_fixes t ctxt;
   277   in
   278     Pretty.string_of
   279       (Pretty.block [Pretty.quote (Syntax.pretty_term ctxt' t), Pretty.fbrk,
   280         Pretty.str "::", Pretty.brk 1, Pretty.quote (Syntax.pretty_typ ctxt' T)])
   281   end;
   282 
   283 fun string_of_type ctxt (s, NONE) =
   284       let val T = Syntax.read_typ ctxt s
   285       in Pretty.string_of (Pretty.quote (Syntax.pretty_typ ctxt T)) end
   286   | string_of_type ctxt (s1, SOME s2) =
   287       let
   288         val ctxt' = Config.put show_sorts true ctxt;
   289         val raw_T = Syntax.parse_typ ctxt' s1;
   290         val S = Syntax.read_sort ctxt' s2;
   291         val T =
   292           Syntax.check_term ctxt'
   293             (Logic.mk_type raw_T |> Type.constraint (Term.itselfT (Type_Infer.anyT S)))
   294           |> Logic.dest_type;
   295       in Pretty.string_of (Pretty.quote (Syntax.pretty_typ ctxt' T)) end;
   296 
   297 fun print_item string_of (modes, arg) = Toplevel.keep (fn state =>
   298   Print_Mode.with_modes modes (fn () => writeln (string_of state arg)) ());
   299 
   300 in
   301 
   302 val print_stmts = print_item (string_of_stmts o Toplevel.context_of);
   303 val print_thms = print_item (string_of_thms o Toplevel.context_of);
   304 val print_prfs = print_item o string_of_prfs;
   305 val print_prop = print_item (string_of_prop o Toplevel.context_of);
   306 val print_term = print_item (string_of_term o Toplevel.context_of);
   307 val print_type = print_item (string_of_type o Toplevel.context_of);
   308 
   309 end;
   310 
   311 end;