src/Pure/Isar/code.ML
author wenzelm
Mon, 03 May 2010 14:25:56 +0200
changeset 36610 bafd82950e24
parent 36209 566be5d48090
child 36615 88756a5a92fc
permissions -rw-r--r--
renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     1
(*  Title:      Pure/Isar/code.ML
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     2
    Author:     Florian Haftmann, TU Muenchen
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     3
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
     4
Abstract executable ingredients of theory.  Management of data
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
     5
dependent on executable ingredients as synchronized cache; purged
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
     6
on any change of underlying executable ingredients.
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     7
*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     8
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
     9
signature CODE =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    10
sig
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    11
  (*constants*)
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    12
  val check_const: theory -> term -> string
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    13
  val read_bare_const: theory -> string -> string * typ
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    14
  val read_const: theory -> string -> string
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    15
  val string_of_const: theory -> string -> string
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    16
  val cert_signature: theory -> typ -> typ
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    17
  val read_signature: theory -> string -> typ
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    18
  val const_typ: theory -> string -> typ
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    19
  val subst_signatures: theory -> term -> term
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    20
  val args_number: theory -> string -> int
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    21
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    22
  (*constructor sets*)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    23
  val constrset_of_consts: theory -> (string * typ) list
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    24
    -> string * ((string * sort) list * (string * typ list) list)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    25
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
    26
  (*code equations and certificates*)
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    27
  val mk_eqn: theory -> thm * bool -> thm * bool
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    28
  val mk_eqn_warning: theory -> thm -> (thm * bool) option
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    29
  val mk_eqn_liberal: theory -> thm -> (thm * bool) option
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    30
  val assert_eqn: theory -> thm * bool -> thm * bool
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    31
  val const_typ_eqn: theory -> thm -> string * typ
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
    32
  val expand_eta: theory -> int -> thm -> thm
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
    33
  type cert
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
    34
  val empty_cert: theory -> string -> cert
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
    35
  val cert_of_eqns: theory -> string -> (thm * bool) list -> cert
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
    36
  val constrain_cert: theory -> sort list -> cert -> cert
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
    37
  val typargs_deps_of_cert: theory -> cert -> (string * sort) list * (string * typ list) list
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
    38
  val equations_of_cert: theory -> cert -> ((string * sort) list * typ)
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
    39
    * (((term * string option) list * (term * string option)) * (thm option * bool)) list
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
    40
  val bare_thms_of_cert: theory -> cert -> thm list
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
    41
  val pretty_cert: theory -> cert -> Pretty.T list
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    42
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
    43
  (*executable code*)
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    44
  val add_type: string -> theory -> theory
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    45
  val add_type_cmd: string -> theory -> theory
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    46
  val add_signature: string * typ -> theory -> theory
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
    47
  val add_signature_cmd: string * string -> theory -> theory
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    48
  val add_datatype: (string * typ) list -> theory -> theory
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    49
  val add_datatype_cmd: string list -> theory -> theory
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    50
  val datatype_interpretation:
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    51
    (string * ((string * sort) list * (string * typ list) list)
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    52
      -> theory -> theory) -> theory -> theory
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
    53
  val add_abstype: thm -> theory -> theory
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    54
  val abstype_interpretation:
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    55
    (string * ((string * sort) list * ((string * typ) * (string * thm)))
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
    56
      -> theory -> theory) -> theory -> theory
28368
8437fb395294 clarified function transformator interface
haftmann
parents: 28359
diff changeset
    57
  val add_eqn: thm -> theory -> theory
31088
36a011423fcc clarified terminilogy concerning nbe equations
haftmann
parents: 30928
diff changeset
    58
  val add_nbe_eqn: thm -> theory -> theory
28368
8437fb395294 clarified function transformator interface
haftmann
parents: 28359
diff changeset
    59
  val add_default_eqn: thm -> theory -> theory
28703
aef727ef30e5 cleanup code default attribute
haftmann
parents: 28695
diff changeset
    60
  val add_default_eqn_attribute: attribute
aef727ef30e5 cleanup code default attribute
haftmann
parents: 28695
diff changeset
    61
  val add_default_eqn_attrib: Attrib.src
28368
8437fb395294 clarified function transformator interface
haftmann
parents: 28359
diff changeset
    62
  val del_eqn: thm -> theory -> theory
8437fb395294 clarified function transformator interface
haftmann
parents: 28359
diff changeset
    63
  val del_eqns: string -> theory -> theory
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
    64
  val add_case: thm -> theory -> theory
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
    65
  val add_undefined: string -> theory -> theory
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    66
  val get_type: theory -> string -> ((string * sort) list * (string * typ list) list)
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
    67
  val get_type_of_constr_or_abstr: theory -> string -> (string * bool) option
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
    68
  val is_constr: theory -> string -> bool
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
    69
  val is_abstr: theory -> string -> bool
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
    70
  val get_cert: theory -> ((thm * bool) list -> (thm * bool) list) -> string -> cert
30023
55954f726043 permissive check for pattern discipline in case schemes
haftmann
parents: 29970
diff changeset
    71
  val get_case_scheme: theory -> string -> (int * (int * string list)) option
31890
e943b039f0ac an intermediate step towards a refined translation of cases
haftmann
parents: 31642
diff changeset
    72
  val undefineds: theory -> string list
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    73
  val print_codesetup: theory -> unit
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    74
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    75
  (*infrastructure*)
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
    76
  val set_code_target_attr: (string -> thm -> theory -> theory) -> theory -> theory
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
    77
  val purge_data: theory -> theory
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    78
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    79
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    80
signature CODE_DATA_ARGS =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    81
sig
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    82
  type T
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    83
  val empty: T
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    84
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    85
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    86
signature CODE_DATA =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    87
sig
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    88
  type T
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
    89
  val change: theory -> (T -> T) -> T
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
    90
  val change_yield: theory -> (T -> 'a * T) -> 'a * T
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    91
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    92
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    93
signature PRIVATE_CODE =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    94
sig
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    95
  include CODE
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
    96
  val declare_data: Object.T -> serial
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    97
  val change_data: serial * ('a -> Object.T) * (Object.T -> 'a)
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
    98
    -> theory -> ('a -> 'a) -> 'a
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
    99
  val change_yield_data: serial * ('a -> Object.T) * (Object.T -> 'a)
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   100
    -> theory -> ('a -> 'b * 'a) -> 'b * 'a
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   101
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   102
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   103
structure Code : PRIVATE_CODE =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   104
struct
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   105
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   106
(** auxiliary **)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   107
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   108
(* printing *)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   109
32966
5b21661fe618 indicate CRITICAL nature of various setmp combinators;
wenzelm
parents: 32929
diff changeset
   110
fun string_of_typ thy = setmp_CRITICAL show_sorts true (Syntax.string_of_typ_global thy);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   111
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   112
fun string_of_const thy c = case AxClass.inst_of_param thy c
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   113
 of SOME (c, tyco) => Sign.extern_const thy c ^ " " ^ enclose "[" "]" (Sign.extern_type thy tyco)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   114
  | NONE => Sign.extern_const thy c;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   115
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   116
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   117
(* constants *)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   118
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   119
fun typ_equiv tys = Type.raw_instance tys andalso Type.raw_instance (swap tys);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   120
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   121
fun check_bare_const thy t = case try dest_Const t
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   122
 of SOME c_ty => c_ty
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   123
  | NONE => error ("Not a constant: " ^ Syntax.string_of_term_global thy t);
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   124
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   125
fun check_const thy = AxClass.unoverload_const thy o check_bare_const thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   126
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   127
fun read_bare_const thy = check_bare_const thy o Syntax.read_term_global thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   128
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   129
fun read_const thy = AxClass.unoverload_const thy o read_bare_const thy;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   130
32872
019201eb7e07 variables in type schemes must be renamed simultaneously with variables in equations
haftmann
parents: 32738
diff changeset
   131
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   132
(** data store **)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   133
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   134
(* datatypes *)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   135
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   136
datatype typ_spec = Constructors of (string * typ list) list
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   137
  | Abstractor of (string * typ) * (string * thm);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   138
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   139
fun constructors_of (Constructors cos) = (cos, false)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   140
  | constructors_of (Abstractor ((co, ty), _)) = ([(co, [ty])], true);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   141
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   142
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   143
(* functions *)
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   144
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   145
datatype fun_spec = Default of (thm * bool) list
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   146
  | Eqns of (thm * bool) list
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   147
  | Proj of term * string
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   148
  | Abstr of thm * string;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   149
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   150
val empty_fun_spec = Default [];
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   151
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   152
fun is_default (Default _) = true
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   153
  | is_default _ = false;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   154
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   155
fun associated_abstype (Abstr (_, tyco)) = SOME tyco
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   156
  | associated_abstype _ = NONE;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   157
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   158
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   159
(* executable code data *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   160
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   161
datatype spec = Spec of {
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   162
  history_concluded: bool,
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   163
  signatures: int Symtab.table * typ Symtab.table,
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   164
  functions: ((bool * fun_spec) * (serial * fun_spec) list) Symtab.table
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   165
    (*with explicit history*),
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   166
  types: ((serial * ((string * sort) list * typ_spec)) list) Symtab.table
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   167
    (*with explicit history*),
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   168
  cases: (int * (int * string list)) Symtab.table * unit Symtab.table
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   169
};
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   170
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   171
fun make_spec (history_concluded, ((signatures, functions), (types, cases))) =
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   172
  Spec { history_concluded = history_concluded,
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   173
    signatures = signatures, functions = functions, types = types, cases = cases };
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   174
fun map_spec f (Spec { history_concluded = history_concluded, signatures = signatures,
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   175
  functions = functions, types = types, cases = cases }) =
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   176
  make_spec (f (history_concluded, ((signatures, functions), (types, cases))));
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   177
fun merge_spec (Spec { history_concluded = _, signatures = (tycos1, sigs1), functions = functions1,
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   178
    types = types1, cases = (cases1, undefs1) },
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   179
  Spec { history_concluded = _, signatures = (tycos2, sigs2), functions = functions2,
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   180
    types = types2, cases = (cases2, undefs2) }) =
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   181
  let
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   182
    val signatures = (Symtab.merge (op =) (tycos1, tycos2),
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   183
      Symtab.merge typ_equiv (sigs1, sigs2));
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   184
    fun merge_functions ((_, history1), (_, history2)) =
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   185
      let
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   186
        val raw_history = AList.merge (op = : serial * serial -> bool)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   187
          (K true) (history1, history2);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   188
        val filtered_history = filter_out (is_default o snd) raw_history;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   189
        val history = if null filtered_history
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   190
          then raw_history else filtered_history;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   191
      in ((false, (snd o hd) history), history) end;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   192
    val functions = Symtab.join (K merge_functions) (functions1, functions2);
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   193
    val types = Symtab.join (K (AList.merge (op =) (K true))) (types1, types2);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   194
    val cases = (Symtab.merge (K true) (cases1, cases2),
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   195
      Symtab.merge (K true) (undefs1, undefs2));
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   196
  in make_spec (false, ((signatures, functions), (types, cases))) end;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   197
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   198
fun history_concluded (Spec { history_concluded, ... }) = history_concluded;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   199
fun the_signatures (Spec { signatures, ... }) = signatures;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   200
fun the_functions (Spec { functions, ... }) = functions;
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   201
fun the_types (Spec { types, ... }) = types;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   202
fun the_cases (Spec { cases, ... }) = cases;
32544
e129333b9df0 moved eq handling in nbe into separate oracle
haftmann
parents: 32354
diff changeset
   203
val map_history_concluded = map_spec o apfst;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   204
val map_signatures = map_spec o apsnd o apfst o apfst;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   205
val map_functions = map_spec o apsnd o apfst o apsnd;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   206
val map_typs = map_spec o apsnd o apsnd o apfst;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   207
val map_cases = map_spec o apsnd o apsnd o apsnd;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   208
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   209
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   210
(* data slots dependent on executable code *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   211
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   212
(*private copy avoids potential conflict of table exceptions*)
31971
8c1b845ed105 renamed functor TableFun to Table, and GraphFun to Graph;
wenzelm
parents: 31962
diff changeset
   213
structure Datatab = Table(type key = int val ord = int_ord);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   214
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   215
local
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   216
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
   217
type kind = { empty: Object.T };
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   218
32738
15bb09ca0378 explicit indication of Unsynchronized.ref;
wenzelm
parents: 32662
diff changeset
   219
val kinds = Unsynchronized.ref (Datatab.empty: kind Datatab.table);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   220
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   221
fun invoke f k = case Datatab.lookup (! kinds) k
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   222
 of SOME kind => f kind
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   223
  | NONE => sys_error "Invalid code data identifier";
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   224
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   225
in
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   226
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
   227
fun declare_data empty =
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   228
  let
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   229
    val k = serial ();
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
   230
    val kind = { empty = empty };
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
   231
    val _ = CRITICAL (fn () => Unsynchronized.change kinds (Datatab.update (k, kind)));
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   232
  in k end;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   233
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   234
fun invoke_init k = invoke (fn kind => #empty kind) k;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   235
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   236
end; (*local*)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   237
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   238
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   239
(* theory store *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   240
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   241
local
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   242
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   243
type data = Object.T Datatab.table;
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   244
fun empty_dataref () = Synchronized.var "code data" (NONE : (data * theory_ref) option);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   245
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   246
structure Code_Data = Theory_Data
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   247
(
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   248
  type T = spec * (data * theory_ref) option Synchronized.var;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   249
  val empty = (make_spec (false, (((Symtab.empty, Symtab.empty), Symtab.empty),
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   250
    (Symtab.empty, (Symtab.empty, Symtab.empty)))), empty_dataref ());
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   251
  val extend = I
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   252
  fun merge ((spec1, _), (spec2, _)) =
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   253
    (merge_spec (spec1, spec2), empty_dataref ());
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   254
);
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   255
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   256
in
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   257
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   258
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   259
(* access to executable code *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   260
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   261
val the_exec = fst o Code_Data.get;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   262
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   263
fun map_exec_purge f = Code_Data.map (fn (exec, _) => (f exec, empty_dataref ()));
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   264
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   265
val purge_data = (Code_Data.map o apsnd) (fn _ => empty_dataref ());
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   266
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   267
fun change_fun_spec delete c f = (map_exec_purge o map_functions
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   268
  o (if delete then Symtab.map_entry c else Symtab.map_default (c, ((false, empty_fun_spec), [])))
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   269
    o apfst) (fn (_, spec) => (true, f spec));
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   270
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   271
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   272
(* tackling equation history *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   273
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   274
fun continue_history thy = if (history_concluded o the_exec) thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   275
  then thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   276
    |> (Code_Data.map o apfst o map_history_concluded) (K false)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   277
    |> SOME
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   278
  else NONE;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   279
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   280
fun conclude_history thy = if (history_concluded o the_exec) thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   281
  then NONE
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   282
  else thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   283
    |> (Code_Data.map o apfst)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   284
        ((map_functions o Symtab.map) (fn ((changed, current), history) =>
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   285
          ((false, current),
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   286
            if changed then (serial (), current) :: history else history))
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   287
        #> map_history_concluded (K true))
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   288
    |> SOME;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   289
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   290
val _ = Context.>> (Context.map_theory (Theory.at_begin continue_history #> Theory.at_end conclude_history));
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   291
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   292
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   293
(* access to data dependent on abstract executable code *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   294
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   295
fun change_yield_data (kind, mk, dest) theory f =
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   296
  let
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   297
    val dataref = (snd o Code_Data.get) theory;
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   298
    val (datatab, thy_ref) = case Synchronized.value dataref
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   299
     of SOME (datatab, thy_ref) => if Theory.eq_thy (theory, Theory.deref thy_ref)
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   300
          then (datatab, thy_ref)
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   301
          else (Datatab.empty, Theory.check_thy theory)
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   302
      | NONE => (Datatab.empty, Theory.check_thy theory)
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   303
    val data = case Datatab.lookup datatab kind
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   304
     of SOME data => data
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   305
      | NONE => invoke_init kind;
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   306
    val result as (x, data') = f (dest data);
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   307
    val _ = Synchronized.change dataref
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   308
      ((K o SOME) (Datatab.update (kind, mk data') datatab, thy_ref));
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
   309
  in result end;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   310
34251
cd642bb91f64 code cache only persists on equal theories
haftmann
parents: 34244
diff changeset
   311
fun change_data ops theory f = change_yield_data ops theory (f #> pair ()) |> snd;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   312
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   313
end; (*local*)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   314
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   315
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   316
(** foundation **)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   317
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   318
(* constants *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   319
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   320
fun arity_number thy tyco = case Symtab.lookup ((fst o the_signatures o the_exec) thy) tyco
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   321
 of SOME n => n
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   322
  | NONE => Sign.arity_number thy tyco;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   323
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   324
fun build_tsig thy =
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   325
  let
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   326
    val (tycos, _) = (the_signatures o the_exec) thy;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   327
    val decls = (#types o Type.rep_tsig o Sign.tsig_of) thy
34272
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   328
      |> snd 
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   329
      |> Symtab.fold (fn (tyco, n) =>
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   330
          Symtab.update (tyco, Type.LogicalType n)) tycos;
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   331
  in
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   332
    Type.empty_tsig
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   333
    |> Symtab.fold (fn (tyco, Type.LogicalType n) => Type.add_type Name_Space.default_naming
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   334
        (Binding.qualified_name tyco, n) | _ => I) decls
95df5e6dd41c avoid exporting Type.build_tsig
haftmann
parents: 34251
diff changeset
   335
  end;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   336
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   337
fun cert_signature thy = Logic.varifyT_global o Type.cert_typ (build_tsig thy) o Type.no_tvars;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   338
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   339
fun read_signature thy = cert_signature thy o Type.strip_sorts
36610
bafd82950e24 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
wenzelm
parents: 36209
diff changeset
   340
  o Syntax.parse_typ (ProofContext.init_global thy);
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   341
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   342
fun expand_signature thy = Type.cert_typ_mode Type.mode_syntax (Sign.tsig_of thy);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   343
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   344
fun lookup_typ thy = Symtab.lookup ((snd o the_signatures o the_exec) thy);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   345
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   346
fun const_typ thy c = case lookup_typ thy c
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   347
 of SOME ty => ty
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   348
  | NONE => (Type.strip_sorts o Sign.the_const_type thy) c;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   349
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   350
fun subst_signature thy c ty =
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   351
  let
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   352
    fun mk_subst (Type (tyco, tys1)) (ty2 as Type (tyco2, tys2)) =
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   353
          fold2 mk_subst tys1 tys2
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   354
      | mk_subst ty (TVar (v, sort)) = Vartab.update (v, ([], ty))
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   355
  in case lookup_typ thy c
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   356
   of SOME ty' => Envir.subst_type (mk_subst ty (expand_signature thy ty') Vartab.empty) ty'
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   357
    | NONE => ty
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   358
  end;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   359
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   360
fun subst_signatures thy = map_aterms (fn Const (c, ty) => Const (c, subst_signature thy c ty) | t => t);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   361
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   362
fun args_number thy = length o fst o strip_type o const_typ thy;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   363
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   364
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   365
(* datatypes *)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   366
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   367
fun no_constr thy s (c, ty) = error ("Not a datatype constructor:\n" ^ string_of_const thy c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   368
  ^ " :: " ^ string_of_typ thy ty ^ "\n" ^ enclose "(" ")" s);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   369
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   370
fun ty_sorts thy (c, raw_ty) =
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   371
  let
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   372
    val _ = Thm.cterm_of thy (Const (c, raw_ty));
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   373
    val ty = subst_signature thy c raw_ty;
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   374
    val ty_decl = (Logic.unvarifyT_global o const_typ thy) c;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   375
    fun last_typ c_ty ty =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   376
      let
33531
2c0a4adbcf13 tuned error messages; tuned code
haftmann
parents: 33522
diff changeset
   377
        val tfrees = Term.add_tfreesT ty [];
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   378
        val (tyco, vs) = ((apsnd o map) (dest_TFree) o dest_Type o snd o strip_type) ty
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   379
          handle TYPE _ => no_constr thy "bad type" c_ty
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   380
        val _ = if tyco = "fun" then no_constr thy "bad type" c_ty else ();
33531
2c0a4adbcf13 tuned error messages; tuned code
haftmann
parents: 33522
diff changeset
   381
        val _ = if has_duplicates (eq_fst (op =)) vs
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   382
          then no_constr thy "duplicate type variables in datatype" c_ty else ();
33531
2c0a4adbcf13 tuned error messages; tuned code
haftmann
parents: 33522
diff changeset
   383
        val _ = if length tfrees <> length vs
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   384
          then no_constr thy "type variables missing in datatype" c_ty else ();
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   385
      in (tyco, vs) end;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   386
    val (tyco, _) = last_typ (c, ty) ty_decl;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   387
    val (_, vs) = last_typ (c, ty) ty;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   388
  in ((tyco, map snd vs), (c, (map fst vs, ty))) end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   389
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   390
fun constrset_of_consts thy cs =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   391
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   392
    val _ = map (fn (c, _) => if (is_some o AxClass.class_of_param thy) c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   393
      then error ("Is a class parameter: " ^ string_of_const thy c) else ()) cs;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   394
    fun add ((tyco', sorts'), c) ((tyco, sorts), cs) =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   395
      let
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
   396
        val _ = if (tyco' : string) <> tyco
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   397
          then error "Different type constructors in constructor set"
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   398
          else ();
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   399
        val sorts'' = map2 (curry (Sorts.inter_sort (Sign.classes_of thy))) sorts' sorts
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   400
      in ((tyco, sorts), c :: cs) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   401
    fun inst vs' (c, (vs, ty)) =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   402
      let
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   403
        val the_v = the o AList.lookup (op =) (vs ~~ vs');
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   404
        val ty' = map_atyps (fn TFree (v, _) => TFree (the_v v)) ty;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   405
      in (c, (fst o strip_type) ty') end;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   406
    val c' :: cs' = map (ty_sorts thy) cs;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   407
    val ((tyco, sorts), cs'') = fold add cs' (apsnd single c');
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   408
    val vs = Name.names Name.context Name.aT sorts;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   409
    val cs''' = map (inst vs) cs'';
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   410
  in (tyco, (vs, rev cs''')) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   411
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   412
fun get_type_entry thy tyco = case these (Symtab.lookup ((the_types o the_exec) thy) tyco)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   413
 of (_, entry) :: _ => SOME entry
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   414
  | _ => NONE;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   415
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   416
fun get_type_spec thy tyco = case get_type_entry thy tyco
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   417
 of SOME (vs, spec) => apfst (pair vs) (constructors_of spec)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   418
  | NONE => arity_number thy tyco
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   419
      |> Name.invents Name.context Name.aT
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   420
      |> map (rpair [])
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   421
      |> rpair []
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   422
      |> rpair false;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   423
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   424
fun get_abstype_spec thy tyco = case get_type_entry thy tyco
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   425
 of SOME (vs, Abstractor spec) => (vs, spec)
36122
45f8898fe4cf more accurate pattern match
haftmann
parents: 36112
diff changeset
   426
  | _ => error ("Not an abstract type: " ^ tyco);
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   427
 
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   428
fun get_type thy = fst o get_type_spec thy;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   429
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   430
fun get_type_of_constr_or_abstr thy c =
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   431
  case (snd o strip_type o const_typ thy) c
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   432
   of Type (tyco, _) => let val ((vs, cos), abstract) = get_type_spec thy tyco
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   433
        in if member (op =) (map fst cos) c then SOME (tyco, abstract) else NONE end
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   434
    | _ => NONE;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   435
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   436
fun is_constr thy c = case get_type_of_constr_or_abstr thy c
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   437
 of SOME (_, false) => true
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   438
   | _ => false;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   439
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   440
fun is_abstr thy c = case get_type_of_constr_or_abstr thy c
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   441
 of SOME (_, true) => true
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   442
   | _ => false;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   443
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   444
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   445
(* bare code equations *)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   446
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   447
(* convention for variables:
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   448
    ?x ?'a   for free-floating theorems (e.g. in the data store)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   449
    ?x  'a   for certificates
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   450
     x  'a   for final representation of equations
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   451
*)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   452
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   453
exception BAD_THM of string;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   454
fun bad_thm msg = raise BAD_THM msg;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   455
fun error_thm f thm = f thm handle BAD_THM msg => error msg;
31642
ce68241f711f permissive code attribute; all_eqns
haftmann
parents: 31599
diff changeset
   456
fun warning_thm f thm = SOME (f thm) handle BAD_THM msg => (warning msg; NONE)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   457
fun try_thm f thm = SOME (f thm) handle BAD_THM _ => NONE;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   458
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   459
fun is_linear thm =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   460
  let val (_, args) = (strip_comb o fst o Logic.dest_equals o Thm.plain_prop_of) thm
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   461
  in not (has_duplicates (op =) ((fold o fold_aterms)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   462
    (fn Var (v, _) => cons v | _ => I) args [])) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   463
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   464
fun check_decl_ty thy (c, ty) =
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   465
  let
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   466
    val ty_decl = Sign.the_const_type thy c;
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   467
  in if Sign.typ_equiv thy (Type.strip_sorts ty_decl, Type.strip_sorts ty) then ()
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   468
    else bad_thm ("Type\n" ^ string_of_typ thy ty
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   469
      ^ "\nof constant " ^ quote c
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   470
      ^ "\nis incompatible with declared type\n"
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   471
      ^ string_of_typ thy ty_decl)
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   472
  end; 
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   473
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   474
fun check_eqn thy { allow_nonlinear, allow_consts, allow_pats } thm (lhs, rhs) =
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   475
  let
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   476
    fun bad s = bad_thm (s ^ ":\n" ^ Display.string_of_thm_global thy thm);
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   477
    fun vars_of t = fold_aterms (fn Var (v, _) => insert (op =) v
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   478
      | Free _ => bad "Illegal free variable in equation"
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   479
      | _ => I) t [];
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   480
    fun tvars_of t = fold_term_types (fn _ =>
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   481
      fold_atyps (fn TVar (v, _) => insert (op =) v
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   482
        | TFree _ => bad "Illegal free type variable in equation")) t [];
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   483
    val lhs_vs = vars_of lhs;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   484
    val rhs_vs = vars_of rhs;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   485
    val lhs_tvs = tvars_of lhs;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   486
    val rhs_tvs = tvars_of rhs;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   487
    val _ = if null (subtract (op =) lhs_vs rhs_vs)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   488
      then ()
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   489
      else bad "Free variables on right hand side of equation";
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   490
    val _ = if null (subtract (op =) lhs_tvs rhs_tvs)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   491
      then ()
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   492
      else bad "Free type variables on right hand side of equation";
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   493
    val (head, args) = strip_comb lhs;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   494
    val (c, ty) = case head
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   495
     of Const (c_ty as (_, ty)) => (AxClass.unoverload_const thy c_ty, ty)
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   496
      | _ => bad "Equation not headed by constant";
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   497
    fun check _ (Abs _) = bad "Abstraction on left hand side of equation"
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   498
      | check 0 (Var _) = ()
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   499
      | check _ (Var _) = bad "Variable with application on left hand side of equation"
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   500
      | check n (t1 $ t2) = (check (n+1) t1; check 0 t2)
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   501
      | check n (Const (c_ty as (c, ty))) =
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   502
          if allow_pats then let
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   503
            val c' = AxClass.unoverload_const thy c_ty
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   504
          in if n = (length o fst o strip_type o subst_signature thy c') ty
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   505
            then if allow_consts orelse is_constr thy c'
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   506
              then ()
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   507
              else bad (quote c ^ " is not a constructor, on left hand side of equation")
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   508
            else bad ("Partially applied constant " ^ quote c ^ " on left hand side of equation")
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   509
          end else bad ("Pattern not allowed here, but constant " ^ quote c ^ " encountered on left hand side")
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   510
    val _ = map (check 0) args;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   511
    val _ = if allow_nonlinear orelse is_linear thm then ()
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   512
      else bad "Duplicate variables on left hand side of equation";
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   513
    val _ = if (is_none o AxClass.class_of_param thy) c then ()
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   514
      else bad "Overloaded constant as head in equation";
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   515
    val _ = if not (is_constr thy c) then ()
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   516
      else bad "Constructor as head in equation";
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   517
    val _ = if not (is_abstr thy c) then ()
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   518
      else bad "Abstractor as head in equation";
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   519
    val _ = check_decl_ty thy (c, ty);
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   520
  in () end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   521
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   522
fun gen_assert_eqn thy check_patterns (thm, proper) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   523
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   524
    fun bad s = bad_thm (s ^ ":\n" ^ Display.string_of_thm_global thy thm);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   525
    val (lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   526
      handle TERM _ => bad "Not an equation"
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   527
           | THM _ => bad "Not a proper equation";
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   528
    val _ = check_eqn thy { allow_nonlinear = not proper,
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   529
      allow_consts = not (proper andalso check_patterns), allow_pats = true } thm (lhs, rhs);
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   530
  in (thm, proper) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   531
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   532
fun assert_abs_eqn thy some_tyco thm =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   533
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   534
    fun bad s = bad_thm (s ^ ":\n" ^ Display.string_of_thm_global thy thm);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   535
    val (full_lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   536
      handle TERM _ => bad "Not an equation"
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   537
           | THM _ => bad "Not a proper equation";
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   538
    val (rep, lhs) = dest_comb full_lhs
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   539
      handle TERM _ => bad "Not an abstract equation";
36202
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   540
    val (rep_const, ty) = dest_Const rep;
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   541
    val (tyco, sorts) = ((apsnd o map) (snd o dest_TVar) o dest_Type o domain_type) ty
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   542
      handle TERM _ => bad "Not an abstract equation";
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   543
    val _ = case some_tyco of SOME tyco' => if tyco = tyco' then ()
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   544
          else bad ("Abstract type mismatch:" ^ quote tyco ^ " vs. " ^ quote tyco')
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   545
      | NONE => ();
36202
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   546
    val (vs', (_, (rep', _))) = get_abstype_spec thy tyco;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   547
    val _ = if rep_const = rep' then ()
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   548
      else bad ("Projection mismatch: " ^ quote rep_const ^ " vs. " ^ quote rep');
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   549
    val _ = check_eqn thy { allow_nonlinear = false,
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   550
      allow_consts = false, allow_pats = false } thm (lhs, rhs);
36202
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   551
    val _ = if forall (Sign.subsort thy) (sorts ~~ map snd  vs') then ()
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   552
      else error ("Sort constraints on type arguments are weaker than in abstype certificate.")
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   553
  in (thm, tyco) end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   554
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   555
fun assert_eqn thy = error_thm (gen_assert_eqn thy true);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   556
36610
bafd82950e24 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
wenzelm
parents: 36209
diff changeset
   557
fun meta_rewrite thy = Local_Defs.meta_rewrite_rule (ProofContext.init_global thy);
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   558
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   559
fun mk_eqn thy = error_thm (gen_assert_eqn thy false) o
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   560
  apfst (meta_rewrite thy);
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   561
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   562
fun mk_eqn_warning thy = Option.map (fn (thm, _) => (thm, is_linear thm))
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   563
  o warning_thm (gen_assert_eqn thy false) o rpair false o meta_rewrite thy;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   564
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   565
fun mk_eqn_liberal thy = Option.map (fn (thm, _) => (thm, is_linear thm))
34894
fadbdd350dd1 corrected error messages; tuned
haftmann
parents: 34891
diff changeset
   566
  o try_thm (gen_assert_eqn thy false) o rpair false o meta_rewrite thy;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   567
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   568
fun mk_abs_eqn thy = error_thm (assert_abs_eqn thy NONE) o meta_rewrite thy;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   569
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   570
val head_eqn = dest_Const o fst o strip_comb o fst o Logic.dest_equals o Thm.plain_prop_of;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   571
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
   572
fun const_typ_eqn thy thm =
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   573
  let
32640
ba6531df2c64 corrected order of type variables in code equations; more precise certificate for cases
haftmann
parents: 32544
diff changeset
   574
    val (c, ty) = head_eqn thm;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   575
    val c' = AxClass.unoverload_const thy (c, ty);
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   576
      (*permissive wrt. to overloaded constants!*)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   577
  in (c', ty) end;
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   578
31957
a9742afd403e tuned interface of structure Code
haftmann
parents: 31890
diff changeset
   579
fun const_eqn thy = fst o const_typ_eqn thy;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   580
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   581
fun const_abs_eqn thy = AxClass.unoverload_const thy o dest_Const o fst o strip_comb o snd
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   582
  o dest_comb o fst o Logic.dest_equals o Thm.plain_prop_of;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   583
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   584
fun logical_typscheme thy (c, ty) =
32873
333945c9ac6a tuned handling of type variable names further
haftmann
parents: 32872
diff changeset
   585
  (map dest_TFree (Sign.const_typargs thy (c, ty)), Type.strip_sorts ty);
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   586
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   587
fun typscheme thy (c, ty) = logical_typscheme thy (c, subst_signature thy c ty);
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
   588
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   589
fun mk_proj tyco vs ty abs rep =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   590
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   591
    val ty_abs = Type (tyco, map TFree vs);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   592
    val xarg = Var (("x", 0), ty);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   593
  in Logic.mk_equals (Const (rep, ty_abs --> ty) $ (Const (abs, ty --> ty_abs) $ xarg), xarg) end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   594
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   595
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   596
(* technical transformations of code equations *)
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   597
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   598
fun expand_eta thy k thm =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   599
  let
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   600
    val (lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   601
    val (_, args) = strip_comb lhs;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   602
    val l = if k = ~1
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   603
      then (length o fst o strip_abs) rhs
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   604
      else Int.max (0, k - length args);
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   605
    val (raw_vars, _) = Term.strip_abs_eta l rhs;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   606
    val vars = burrow_fst (Name.variant_list (map (fst o fst) (Term.add_vars lhs [])))
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   607
      raw_vars;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   608
    fun expand (v, ty) thm = Drule.fun_cong_rule thm
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   609
      (Thm.cterm_of thy (Var ((v, 0), ty)));
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   610
  in
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   611
    thm
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   612
    |> fold expand vars
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   613
    |> Conv.fconv_rule Drule.beta_eta_conversion
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   614
  end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   615
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   616
fun same_arity thy thms =
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   617
  let
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   618
    val num_args_of = length o snd o strip_comb o fst o Logic.dest_equals;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   619
    val k = fold (Integer.max o num_args_of o Thm.prop_of) thms 0;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   620
  in map (expand_eta thy k) thms end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   621
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   622
fun mk_desymbolization pre post mk vs =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   623
  let
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   624
    val names = map (pre o fst o fst) vs
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   625
      |> map (Name.desymbolize false)
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   626
      |> Name.variant_list []
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   627
      |> map post;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   628
  in map_filter (fn (((v, i), x), v') =>
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   629
    if v = v' andalso i = 0 then NONE
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   630
    else SOME (((v, i), x), mk ((v', 0), x))) (vs ~~ names)
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   631
  end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   632
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   633
fun desymbolize_tvars thy thms =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   634
  let
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   635
    val tvs = fold (Term.add_tvars o Thm.prop_of) thms [];
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   636
    val tvar_subst = mk_desymbolization (unprefix "'") (prefix "'") TVar tvs;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   637
  in map (Thm.certify_instantiate (tvar_subst, [])) thms end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   638
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   639
fun desymbolize_vars thy thm =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   640
  let
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   641
    val vs = Term.add_vars (Thm.prop_of thm) [];
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   642
    val var_subst = mk_desymbolization I I Var vs;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   643
  in Thm.certify_instantiate ([], var_subst) thm end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   644
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   645
fun canonize_thms thy = desymbolize_tvars thy #> same_arity thy #> map (desymbolize_vars thy);
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   646
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   647
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   648
(* abstype certificates *)
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   649
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   650
fun check_abstype_cert thy proto_thm =
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   651
  let
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   652
    val thm = (AxClass.unoverload thy o meta_rewrite thy) proto_thm;
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   653
    fun bad s = bad_thm (s ^ ":\n" ^ Display.string_of_thm_global thy thm);
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   654
    val (lhs, rhs) = Logic.dest_equals (Thm.plain_prop_of thm)
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   655
      handle TERM _ => bad "Not an equation"
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   656
           | THM _ => bad "Not a proper equation";
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   657
    val ((abs, raw_ty), ((rep, rep_ty), param)) = (apsnd (apfst dest_Const o dest_comb)
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   658
        o apfst dest_Const o dest_comb) lhs
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   659
      handle TERM _ => bad "Not an abstype certificate";
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   660
    val _ = pairself (fn c => if (is_some o AxClass.class_of_param thy) c
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   661
      then error ("Is a class parameter: " ^ string_of_const thy c) else ()) (abs, rep);
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   662
    val _ = check_decl_ty thy (abs, raw_ty);
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   663
    val _ = check_decl_ty thy (rep, rep_ty);
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   664
    val var = (fst o dest_Var) param
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   665
      handle TERM _ => bad "Not an abstype certificate";
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   666
    val _ = if param = rhs then () else bad "Not an abstype certificate";
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   667
    val ((tyco, sorts), (abs, (vs, ty'))) = ty_sorts thy (abs, Logic.unvarifyT_global raw_ty);
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   668
    val ty = domain_type ty';
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   669
    val ty_abs = range_type ty';
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   670
  in (tyco, (vs ~~ sorts, ((abs, ty), (rep, thm)))) end;
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   671
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
   672
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   673
(* code equation certificates *)
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   674
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   675
fun build_head thy (c, ty) =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   676
  Thm.cterm_of thy (Logic.mk_equals (Free ("HEAD", ty), Const (c, ty)));
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   677
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   678
fun get_head thy cert_thm =
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   679
  let
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   680
    val [head] = (#hyps o Thm.crep_thm) cert_thm;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   681
    val (_, Const (c, ty)) = (Logic.dest_equals o Thm.term_of) head;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   682
  in (typscheme thy (c, ty), head) end;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   683
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   684
fun typscheme_projection thy =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   685
  typscheme thy o dest_Const o fst o dest_comb o fst o Logic.dest_equals;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   686
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   687
fun typscheme_abs thy =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   688
  typscheme thy o dest_Const o fst o strip_comb o snd o dest_comb o fst o Logic.dest_equals o Thm.prop_of;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   689
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   690
fun constrain_thm thy vs sorts thm =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   691
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   692
    val mapping = map2 (fn (v, sort) => fn sort' =>
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   693
      (v, Sorts.inter_sort (Sign.classes_of thy) (sort, sort'))) vs sorts;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   694
    val inst = map2 (fn (v, sort) => fn (_, sort') =>
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   695
      (((v, 0), sort), TFree (v, sort'))) vs mapping;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   696
    val subst = (map_types o map_atyps)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   697
      (fn TFree (v, _) => TFree (v, the (AList.lookup (op =) mapping v)));
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   698
  in
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   699
    thm
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   700
    |> Thm.varifyT_global
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   701
    |> Thm.certify_instantiate (inst, [])
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   702
    |> pair subst
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   703
  end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   704
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   705
fun concretify_abs thy tyco abs_thm =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   706
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   707
    val (vs, ((c, _), (_, cert))) = get_abstype_spec thy tyco;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   708
    val lhs = (fst o Logic.dest_equals o Thm.prop_of) abs_thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   709
    val ty = fastype_of lhs;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   710
    val ty_abs = (fastype_of o snd o dest_comb) lhs;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   711
    val abs = Thm.cterm_of thy (Const (c, ty --> ty_abs));
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   712
    val raw_concrete_thm = Drule.transitive_thm OF [Thm.symmetric cert, Thm.combination (Thm.reflexive abs) abs_thm];
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   713
  in (c, (Thm.varifyT_global o zero_var_indexes) raw_concrete_thm) end;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   714
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   715
fun add_rhss_of_eqn thy t =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   716
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   717
    val (args, rhs) = (apfst (snd o strip_comb) o Logic.dest_equals o subst_signatures thy) t;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   718
    fun add_const (Const (c, ty)) = insert (op =) (c, Sign.const_typargs thy (c, ty))
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   719
      | add_const _ = I
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   720
  in fold_aterms add_const t end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   721
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   722
fun dest_eqn thy =
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   723
  apfst (snd o strip_comb) o Logic.dest_equals o subst_signatures thy o Logic.unvarify_global;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   724
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   725
abstype cert = Equations of thm * bool list
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   726
  | Projection of term * string
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   727
  | Abstract of thm * string
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   728
with
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   729
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   730
fun empty_cert thy c = 
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   731
  let
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   732
    val raw_ty = const_typ thy c;
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   733
    val tvars = Term.add_tvar_namesT raw_ty [];
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   734
    val tvars' = case AxClass.class_of_param thy c
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   735
     of SOME class => [TFree (Name.aT, [class])]
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   736
      | NONE => Name.invent_list [] Name.aT (length tvars)
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   737
          |> map (fn v => TFree (v, []));
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   738
    val ty = typ_subst_TVars (tvars ~~ tvars') raw_ty;
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   739
    val chead = build_head thy (c, ty);
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   740
  in Equations (Thm.weaken chead Drule.dummy_thm, []) end;
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   741
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   742
fun cert_of_eqns thy c [] = empty_cert thy c
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   743
  | cert_of_eqns thy c raw_eqns = 
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   744
      let
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   745
        val eqns = burrow_fst (canonize_thms thy) raw_eqns;
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   746
        val _ = map (assert_eqn thy) eqns;
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   747
        val (thms, propers) = split_list eqns;
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   748
        val _ = map (fn thm => if c = const_eqn thy thm then ()
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   749
          else error ("Wrong head of code equation,\nexpected constant "
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   750
            ^ string_of_const thy c ^ "\n" ^ Display.string_of_thm_global thy thm)) thms;
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   751
        fun tvars_of T = rev (Term.add_tvarsT T []);
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   752
        val vss = map (tvars_of o snd o head_eqn) thms;
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   753
        fun inter_sorts vs =
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   754
          fold (curry (Sorts.inter_sort (Sign.classes_of thy)) o snd) vs [];
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   755
        val sorts = map_transpose inter_sorts vss;
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   756
        val vts = Name.names Name.context Name.aT sorts;
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   757
        val thms as thm :: _ =
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   758
          map2 (fn vs => Thm.certify_instantiate (vs ~~ map TFree vts, [])) vss thms;
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   759
        val head_thm = Thm.symmetric (Thm.assume (build_head thy (head_eqn (hd thms))));
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   760
        fun head_conv ct = if can Thm.dest_comb ct
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   761
          then Conv.fun_conv head_conv ct
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   762
          else Conv.rewr_conv head_thm ct;
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   763
        val rewrite_head = Conv.fconv_rule (Conv.arg1_conv head_conv);
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   764
        val cert_thm = Conjunction.intr_balanced (map rewrite_head thms);
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   765
      in Equations (cert_thm, propers) end;
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   766
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   767
fun cert_of_proj thy c tyco =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   768
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   769
    val (vs, ((abs, ty), (rep, cert))) = get_abstype_spec thy tyco;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   770
    val _ = if c = rep then () else
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   771
      error ("Wrong head of projection,\nexpected constant " ^ string_of_const thy rep);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   772
  in Projection (mk_proj tyco vs ty abs rep, tyco) end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   773
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   774
fun cert_of_abs thy tyco c raw_abs_thm =
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   775
  let
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   776
    val abs_thm = singleton (canonize_thms thy) raw_abs_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   777
    val _ = assert_abs_eqn thy (SOME tyco) abs_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   778
    val _ = if c = const_abs_eqn thy abs_thm then ()
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   779
      else error ("Wrong head of abstract code equation,\nexpected constant "
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   780
        ^ string_of_const thy c ^ "\n" ^ Display.string_of_thm_global thy abs_thm);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   781
  in Abstract (Thm.freezeT abs_thm, tyco) end;
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   782
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   783
fun constrain_cert thy sorts (Equations (cert_thm, propers)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   784
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   785
        val ((vs, _), head) = get_head thy cert_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   786
        val (subst, cert_thm') = cert_thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   787
          |> Thm.implies_intr head
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   788
          |> constrain_thm thy vs sorts;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   789
        val head' = Thm.term_of head
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   790
          |> subst
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   791
          |> Thm.cterm_of thy;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   792
        val cert_thm'' = cert_thm'
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   793
          |> Thm.elim_implies (Thm.assume head');
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   794
      in Equations (cert_thm'', propers) end
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   795
  | constrain_cert thy _ (cert as Projection _) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   796
      cert
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   797
  | constrain_cert thy sorts (Abstract (abs_thm, tyco)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   798
      Abstract (snd (constrain_thm thy (fst (typscheme_abs thy abs_thm)) sorts abs_thm), tyco);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   799
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   800
fun typscheme_of_cert thy (Equations (cert_thm, _)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   801
      fst (get_head thy cert_thm)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   802
  | typscheme_of_cert thy (Projection (proj, _)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   803
      typscheme_projection thy proj
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   804
  | typscheme_of_cert thy (Abstract (abs_thm, _)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   805
      typscheme_abs thy abs_thm;
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   806
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   807
fun typargs_deps_of_cert thy (Equations (cert_thm, propers)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   808
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   809
        val vs = (fst o fst) (get_head thy cert_thm);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   810
        val equations = if null propers then [] else
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   811
          Thm.prop_of cert_thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   812
          |> Logic.dest_conjunction_balanced (length propers);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   813
      in (vs, fold (add_rhss_of_eqn thy) equations []) end
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   814
  | typargs_deps_of_cert thy (Projection (t, tyco)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   815
      (fst (typscheme_projection thy t), add_rhss_of_eqn thy t [])
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   816
  | typargs_deps_of_cert thy (Abstract (abs_thm, tyco)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   817
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   818
        val vs = fst (typscheme_abs thy abs_thm);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   819
        val (_, concrete_thm) = concretify_abs thy tyco abs_thm;
36202
43ea1f28fc7c explicit check sorts in abstract certificates; abstractor is part of dependencies
haftmann
parents: 36122
diff changeset
   820
      in (vs, add_rhss_of_eqn thy (map_types Logic.unvarifyT_global (Thm.prop_of concrete_thm)) []) end;
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   821
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   822
fun equations_of_cert thy (cert as Equations (cert_thm, propers)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   823
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   824
        val tyscm = typscheme_of_cert thy cert;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   825
        val thms = if null propers then [] else
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   826
          cert_thm
35624
c4e29a0bb8c1 modernized structure Local_Defs;
wenzelm
parents: 35376
diff changeset
   827
          |> Local_Defs.expand [snd (get_head thy cert_thm)]
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   828
          |> Thm.varifyT_global
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   829
          |> Conjunction.elim_balanced (length propers);
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   830
        fun abstractions (args, rhs) = (map (rpair NONE) args, (rhs, NONE));
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   831
      in (tyscm, map (abstractions o dest_eqn thy o Thm.prop_of) thms ~~ (map SOME thms ~~ propers)) end
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   832
  | equations_of_cert thy (Projection (t, tyco)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   833
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   834
        val (_, ((abs, _), _)) = get_abstype_spec thy tyco;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   835
        val tyscm = typscheme_projection thy t;
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   836
        val t' = map_types Logic.varifyT_global t;
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   837
        fun abstractions (args, rhs) = (map (rpair (SOME abs)) args, (rhs, NONE));
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   838
      in (tyscm, [((abstractions o dest_eqn thy) t', (NONE, true))]) end
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   839
  | equations_of_cert thy (Abstract (abs_thm, tyco)) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   840
      let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   841
        val tyscm = typscheme_abs thy abs_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   842
        val (abs, concrete_thm) = concretify_abs thy tyco abs_thm;
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   843
        fun abstractions (args, rhs) = (map (rpair NONE) args, (rhs, (SOME abs)));
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   844
      in
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   845
        (tyscm, [((abstractions o dest_eqn thy o Thm.prop_of) concrete_thm,
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
   846
          (SOME (Thm.varifyT_global abs_thm), true))])
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   847
      end;
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   848
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   849
fun pretty_cert thy (cert as Equations _) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   850
      (map_filter (Option.map (Display.pretty_thm_global thy o AxClass.overload thy) o fst o snd)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   851
         o snd o equations_of_cert thy) cert
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   852
  | pretty_cert thy (Projection (t, _)) =
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   853
      [Syntax.pretty_term_global thy (map_types Logic.varifyT_global t)]
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   854
  | pretty_cert thy (Abstract (abs_thm, tyco)) =
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   855
      [(Display.pretty_thm_global thy o AxClass.overload thy o Thm.varifyT_global) abs_thm];
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   856
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   857
fun bare_thms_of_cert thy (cert as Equations _) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   858
      (map_filter (fn (_, (some_thm, proper)) => if proper then some_thm else NONE)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   859
        o snd o equations_of_cert thy) cert
35376
212b1dc5212d use abstract code cerficates for bare code theorems
haftmann
parents: 35373
diff changeset
   860
  | bare_thms_of_cert thy (Projection _) = []
212b1dc5212d use abstract code cerficates for bare code theorems
haftmann
parents: 35373
diff changeset
   861
  | bare_thms_of_cert thy (Abstract (abs_thm, tyco)) =
35845
e5980f0ad025 renamed varify/unvarify operations to varify_global/unvarify_global to emphasize that these only work in a global situation;
wenzelm
parents: 35624
diff changeset
   862
      [Thm.varifyT_global (snd (concretify_abs thy tyco abs_thm))];
34895
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   863
19fd499cddff explicit abstract type of code certificates
haftmann
parents: 34894
diff changeset
   864
end;
34891
99b9a6290446 code certificates as integral part of code generation
haftmann
parents: 34874
diff changeset
   865
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   866
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   867
(* code certificate access *)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   868
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   869
fun retrieve_raw thy c =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   870
  Symtab.lookup ((the_functions o the_exec) thy) c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   871
  |> Option.map (snd o fst)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   872
  |> the_default (Default [])
34874
89c230bf8feb added code certificates
haftmann
parents: 34272
diff changeset
   873
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   874
fun get_cert thy f c = case retrieve_raw thy c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   875
 of Default eqns => eqns
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   876
      |> (map o apfst) (Thm.transfer thy)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   877
      |> f
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   878
      |> (map o apfst) (AxClass.unoverload thy)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   879
      |> cert_of_eqns thy c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   880
  | Eqns eqns => eqns
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   881
      |> (map o apfst) (Thm.transfer thy)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   882
      |> f
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   883
      |> (map o apfst) (AxClass.unoverload thy)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   884
      |> cert_of_eqns thy c
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   885
  | Proj (_, tyco) =>
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   886
      cert_of_proj thy c tyco
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   887
  | Abstr (abs_thm, tyco) => abs_thm
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   888
      |> Thm.transfer thy
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   889
      |> AxClass.unoverload thy
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   890
      |> cert_of_abs thy tyco c;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   891
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   892
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   893
(* cases *)
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   894
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   895
fun case_certificate thm =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   896
  let
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   897
    val ((head, raw_case_expr), cases) = (apfst Logic.dest_equals
32640
ba6531df2c64 corrected order of type variables in code equations; more precise certificate for cases
haftmann
parents: 32544
diff changeset
   898
      o apsnd Logic.dest_conjunctions o Logic.dest_implies o Thm.plain_prop_of) thm;
31156
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   899
    val _ = case head of Free _ => true
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   900
      | Var _ => true
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   901
      | _ => raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   902
    val ([(case_var, _)], case_expr) = Term.strip_abs_eta 1 raw_case_expr;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   903
    val (Const (case_const, _), raw_params) = strip_comb case_expr;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   904
    val n = find_index (fn Free (v, _) => v = case_var | _ => false) raw_params;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   905
    val _ = if n = ~1 then raise TERM ("case_cert", []) else ();
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   906
    val params = map (fst o dest_Var) (nth_drop n raw_params);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   907
    fun dest_case t =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   908
      let
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   909
        val (head' $ t_co, rhs) = Logic.dest_equals t;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   910
        val _ = if head' = head then () else raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   911
        val (Const (co, _), args) = strip_comb t_co;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   912
        val (Var (param, _), args') = strip_comb rhs;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   913
        val _ = if args' = args then () else raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   914
      in (param, co) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   915
    fun analyze_cases cases =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   916
      let
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   917
        val co_list = fold (AList.update (op =) o dest_case) cases [];
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   918
      in map (the o AList.lookup (op =) co_list) params end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   919
    fun analyze_let t =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   920
      let
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   921
        val (head' $ arg, Var (param', _) $ arg') = Logic.dest_equals t;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   922
        val _ = if head' = head then () else raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   923
        val _ = if arg' = arg then () else raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   924
        val _ = if [param'] = params then () else raise TERM ("case_cert", []);
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   925
      in [] end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   926
    fun analyze (cases as [let_case]) =
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   927
          (analyze_cases cases handle Bind => analyze_let let_case)
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   928
      | analyze cases = analyze_cases cases;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   929
  in (case_const, (n, analyze cases)) end;
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   930
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   931
fun case_cert thm = case_certificate thm
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   932
  handle Bind => error "bad case certificate"
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   933
       | TERM _ => error "bad case certificate";
90fed3d4430f merged module code_unit.ML into code.ML
haftmann
parents: 31152
diff changeset
   934
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   935
fun get_case_scheme thy = Symtab.lookup ((fst o the_cases o the_exec) thy);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   936
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   937
val undefineds = Symtab.keys o snd o the_cases o the_exec;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   938
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   939
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
   940
(* diagnostic *)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   941
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   942
fun print_codesetup thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   943
  let
36610
bafd82950e24 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
wenzelm
parents: 36209
diff changeset
   944
    val ctxt = ProofContext.init_global thy;
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   945
    val exec = the_exec thy;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   946
    fun pretty_equations const thms =
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   947
      (Pretty.block o Pretty.fbreaks) (
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   948
        Pretty.str (string_of_const thy const) :: map (Display.pretty_thm ctxt) thms
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   949
      );
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   950
    fun pretty_function (const, Default eqns) = pretty_equations const (map fst eqns)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   951
      | pretty_function (const, Eqns eqns) = pretty_equations const (map fst eqns)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   952
      | pretty_function (const, Proj (proj, _)) = Pretty.block
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   953
          [Pretty.str (string_of_const thy const), Pretty.fbrk, Syntax.pretty_term ctxt proj]
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   954
      | pretty_function (const, Abstr (thm, _)) = pretty_equations const [thm];
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   955
    fun pretty_typ (tyco, vs) = Pretty.str
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   956
      (string_of_typ thy (Type (tyco, map TFree vs)));
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   957
    fun pretty_typspec (typ, (cos, abstract)) = if null cos
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   958
      then pretty_typ typ
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   959
      else (Pretty.block o Pretty.breaks) (
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   960
        pretty_typ typ
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   961
        :: Pretty.str "="
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   962
        :: (if abstract then [Pretty.str "(abstract)"] else [])
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   963
        @ separate (Pretty.str "|") (map (fn (c, []) => Pretty.str (string_of_const thy c)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   964
             | (c, tys) =>
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   965
                 (Pretty.block o Pretty.breaks)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   966
                    (Pretty.str (string_of_const thy c)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   967
                      :: Pretty.str "of"
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   968
                      :: map (Pretty.quote o Syntax.pretty_typ_global thy) tys)) cos)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   969
      );
34901
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   970
    fun pretty_case (const, (_, (_, []))) = Pretty.str (string_of_const thy const)
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   971
      | pretty_case (const, (_, (_, cos))) = (Pretty.block o Pretty.breaks) [
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   972
          Pretty.str (string_of_const thy const), Pretty.str "with",
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   973
          (Pretty.block o Pretty.commas o map (Pretty.str o string_of_const thy)) cos];
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   974
    val functions = the_functions exec
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   975
      |> Symtab.dest
28695
f7a06d7284c8 explicit history for equations; tuned
haftmann
parents: 28673
diff changeset
   976
      |> (map o apsnd) (snd o fst)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   977
      |> sort (string_ord o pairself fst);
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
   978
    val datatypes = the_types exec
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   979
      |> Symtab.dest
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   980
      |> map (fn (tyco, (_, (vs, spec)) :: _) =>
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   981
          ((tyco, vs), constructors_of spec))
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   982
      |> sort (string_ord o pairself (fst o fst));
34901
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   983
    val cases = Symtab.dest ((fst o the_cases o the_exec) thy);
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   984
    val undefineds = Symtab.keys ((snd o the_cases o the_exec) thy);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   985
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   986
    (Pretty.writeln o Pretty.chunks) [
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   987
      Pretty.block (
34901
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   988
        Pretty.str "code equations:" :: Pretty.fbrk
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   989
        :: (Pretty.fbreaks o map pretty_function) functions
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   990
      ),
25968
66cfe1d00be0 print postprocessor equations
haftmann
parents: 25597
diff changeset
   991
      Pretty.block (
34901
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   992
        Pretty.str "datatypes:" :: Pretty.fbrk
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
   993
        :: (Pretty.fbreaks o map pretty_typspec) datatypes
34901
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   994
      ),
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   995
      Pretty.block (
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   996
        Pretty.str "cases:" :: Pretty.fbrk
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   997
        :: (Pretty.fbreaks o map pretty_case) cases
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   998
      ),
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
   999
      Pretty.block (
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
  1000
        Pretty.str "undefined:" :: Pretty.fbrk
0d6a2ae86525 printing of cases
haftmann
parents: 34895
diff changeset
  1001
        :: (Pretty.commas o map (Pretty.str o string_of_const thy)) undefineds
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1002
      )
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1003
    ]
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1004
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1005
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1006
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1007
(** declaring executable ingredients **)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1008
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1009
(* constant signatures *)
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1010
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1011
fun add_type tyco thy =
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1012
  case Symtab.lookup ((snd o #types o Type.rep_tsig o Sign.tsig_of) thy) tyco
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1013
   of SOME (Type.Abbreviation (vs, _, _)) =>
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
  1014
          (map_exec_purge o map_signatures o apfst)
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1015
            (Symtab.update (tyco, length vs)) thy
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1016
    | _ => error ("No such type abbreviation: " ^ quote tyco);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1017
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1018
fun add_type_cmd s thy = add_type (Sign.intern_type thy s) thy;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1019
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1020
fun gen_add_signature prep_const prep_signature (raw_c, raw_ty) thy =
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1021
  let
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1022
    val c = prep_const thy raw_c;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1023
    val ty = prep_signature thy raw_ty;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1024
    val ty' = expand_signature thy ty;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1025
    val ty'' = Sign.the_const_type thy c;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1026
    val _ = if typ_equiv (ty', ty'') then () else
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1027
      error ("Illegal constant signature: " ^ Syntax.string_of_typ_global thy ty);
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1028
  in
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1029
    thy
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
  1030
    |> (map_exec_purge o map_signatures o apsnd) (Symtab.update (c, ty))
33940
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1031
  end;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1032
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1033
val add_signature = gen_add_signature (K I) cert_signature;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1034
val add_signature_cmd = gen_add_signature read_const read_signature;
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1035
317933ce3712 crude support for type aliasses and corresponding constant signatures
haftmann
parents: 33756
diff changeset
  1036
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1037
(* code equations *)
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1038
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1039
fun gen_add_eqn default (raw_thm, proper) thy =
33075
f654dafa021e close thm derivations explicitly
haftmann
parents: 33006
diff changeset
  1040
  let
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1041
    val thm = Thm.close_derivation raw_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1042
    val c = const_eqn thy thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1043
    fun add_eqn' true (Default eqns) = Default (eqns @ [(thm, proper)])
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1044
      | add_eqn' _ (Eqns eqns) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1045
          let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1046
            val args_of = snd o strip_comb o map_types Type.strip_sorts
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1047
              o fst o Logic.dest_equals o Thm.plain_prop_of;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1048
            val args = args_of thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1049
            val incr_idx = Logic.incr_indexes ([], Thm.maxidx_of thm + 1);
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1050
            fun matches_args args' = length args <= length args' andalso
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1051
              Pattern.matchess thy (args, (map incr_idx o take (length args)) args');
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1052
            fun drop (thm', proper') = if (proper orelse not proper')
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1053
              andalso matches_args (args_of thm') then 
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1054
                (warning ("Code generator: dropping redundant code equation\n" ^
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1055
                    Display.string_of_thm_global thy thm'); true)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1056
              else false;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1057
          in Eqns ((thm, proper) :: filter_out drop eqns) end
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1058
      | add_eqn' false _ = Eqns [(thm, proper)];
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1059
  in change_fun_spec false c (add_eqn' default) thy end;
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1060
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1061
fun add_eqn thm thy =
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1062
  gen_add_eqn false (mk_eqn thy (thm, true)) thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1063
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1064
fun add_warning_eqn thm thy =
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1065
  case mk_eqn_warning thy thm
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1066
   of SOME eqn => gen_add_eqn false eqn thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1067
    | NONE => thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1068
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1069
fun add_default_eqn thm thy =
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1070
  case mk_eqn_liberal thy thm
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1071
   of SOME eqn => gen_add_eqn true eqn thy
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1072
    | NONE => thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1073
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1074
fun add_nbe_eqn thm thy =
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1075
  gen_add_eqn false (mk_eqn thy (thm, false)) thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1076
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1077
val add_default_eqn_attribute = Thm.declaration_attribute
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1078
  (fn thm => Context.mapping (add_default_eqn thm) I);
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1079
val add_default_eqn_attrib = Attrib.internal (K add_default_eqn_attribute);
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1080
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1081
fun add_abs_eqn raw_thm thy =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1082
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1083
    val (abs_thm, tyco) = (apfst Thm.close_derivation o mk_abs_eqn thy) raw_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1084
    val c = const_abs_eqn thy abs_thm;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1085
  in change_fun_spec false c (K (Abstr (abs_thm, tyco))) thy end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1086
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1087
fun del_eqn thm thy = case mk_eqn_liberal thy thm
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1088
 of SOME (thm, _) => let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1089
        fun del_eqn' (Default eqns) = empty_fun_spec
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1090
          | del_eqn' (Eqns eqns) =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1091
              Eqns (filter_out (fn (thm', _) => Thm.eq_thm_prop (thm, thm')) eqns)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1092
          | del_eqn' spec = spec
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1093
      in change_fun_spec true (const_eqn thy thm) del_eqn' thy end
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1094
  | NONE => thy;
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1095
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1096
fun del_eqns c = change_fun_spec true c (K empty_fun_spec);
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1097
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1098
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1099
(* cases *)
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1100
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1101
fun add_case thm thy =
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1102
  let
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1103
    val (c, (k, case_pats)) = case_cert thm;
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1104
    val _ = case filter_out (is_constr thy) case_pats
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1105
     of [] => ()
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1106
      | cs => error ("Non-constructor(s) in case certificate: " ^ commas (map quote cs));
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1107
    val entry = (1 + Int.max (1, length case_pats), (k, case_pats))
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1108
  in (map_exec_purge o map_cases o apfst) (Symtab.update (c, entry)) thy end;
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1109
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1110
fun add_undefined c thy =
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1111
  (map_exec_purge o map_cases o apsnd) (Symtab.update (c, ())) thy;
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1112
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1113
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1114
(* types *)
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1115
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1116
fun register_type (tyco, vs_spec) thy =
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1117
  let
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1118
    val (old_constrs, some_old_proj) =
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1119
      case these (Symtab.lookup ((the_types o the_exec) thy) tyco)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1120
       of (_, (_, Constructors cos)) :: _ => (map fst cos, NONE)
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
  1121
        | (_, (_, Abstractor ((co, _), (proj, _)))) :: _ => ([co], SOME proj)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1122
        | [] => ([], NONE)
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1123
    val outdated_funs = case some_old_proj
35304
57b6cc52c14c more accurate when registering new types
haftmann
parents: 35299
diff changeset
  1124
     of NONE => old_constrs
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1125
      | SOME old_proj => Symtab.fold
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
  1126
          (fn (c, ((_, spec), _)) =>
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
  1127
            if member (op =) (the_list (associated_abstype spec)) tyco
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1128
            then insert (op =) c else I)
35304
57b6cc52c14c more accurate when registering new types
haftmann
parents: 35299
diff changeset
  1129
            ((the_functions o the_exec) thy) (old_proj :: old_constrs);
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1130
    fun drop_outdated_cases cases = fold Symtab.delete_safe
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1131
      (Symtab.fold (fn (c, (_, (_, cos))) =>
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1132
        if exists (member (op =) old_constrs) cos
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1133
          then insert (op =) c else I) cases []) cases;
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1134
  in
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1135
    thy
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1136
    |> fold del_eqns outdated_funs
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1137
    |> map_exec_purge
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1138
        ((map_typs o Symtab.map_default (tyco, [])) (cons (serial (), vs_spec))
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1139
        #> (map_cases o apfst) drop_outdated_cases)
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1140
  end;
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1141
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1142
fun unoverload_const_typ thy (c, ty) = (AxClass.unoverload_const thy (c, ty), ty);
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1143
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1144
structure Datatype_Interpretation =
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1145
  Interpretation(type T = string * serial val eq = eq_snd (op =) : T * T -> bool);
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1146
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1147
fun datatype_interpretation f = Datatype_Interpretation.interpretation
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1148
  (fn (tyco, _) => fn thy => f (tyco, get_type thy tyco) thy);
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1149
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1150
fun add_datatype proto_constrs thy =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1151
  let
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1152
    val constrs = map (unoverload_const_typ thy) proto_constrs;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1153
    val (tyco, (vs, cos)) = constrset_of_consts thy constrs;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1154
  in
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1155
    thy
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1156
    |> fold (del_eqns o fst) constrs
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1157
    |> register_type (tyco, (vs, Constructors cos))
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1158
    |> Datatype_Interpretation.data (tyco, serial ())
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1159
  end;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1160
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1161
fun add_datatype_cmd raw_constrs thy =
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1162
  add_datatype (map (read_bare_const thy) raw_constrs) thy;
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1163
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1164
structure Abstype_Interpretation =
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1165
  Interpretation(type T = string * serial val eq = eq_snd (op =) : T * T -> bool);
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1166
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1167
fun abstype_interpretation f = Abstype_Interpretation.interpretation
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1168
  (fn (tyco, _) => fn thy => f (tyco, get_abstype_spec thy tyco) thy);
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1169
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1170
fun add_abstype proto_thm thy =
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1171
  let
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1172
    val (tyco, (vs, (abs_ty as (abs, ty), (rep, cert)))) =
36209
566be5d48090 more appropriate representation of valid positions for abstractors; more accurate checking of abstype certificates
haftmann
parents: 36202
diff changeset
  1173
      error_thm (check_abstype_cert thy) proto_thm;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1174
  in
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1175
    thy
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1176
    |> del_eqns abs
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1177
    |> register_type (tyco, (vs, Abstractor (abs_ty, (rep, cert))))
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1178
    |> change_fun_spec false rep ((K o Proj)
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1179
        (map_types Logic.varifyT_global (mk_proj tyco vs ty abs rep), tyco))
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1180
    |> Abstype_Interpretation.data (tyco, serial ())
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1181
  end;
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1182
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1183
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1184
(** infrastructure **)
34244
03f8dcab55f3 code cache without copy; tuned
haftmann
parents: 34184
diff changeset
  1185
32070
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1186
(* c.f. src/HOL/Tools/recfun_codegen.ML *)
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1187
33522
737589bb9bb8 adapted Theory_Data;
wenzelm
parents: 33519
diff changeset
  1188
structure Code_Target_Attr = Theory_Data
737589bb9bb8 adapted Theory_Data;
wenzelm
parents: 33519
diff changeset
  1189
(
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1190
  type T = (string -> thm -> theory -> theory) option;
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1191
  val empty = NONE;
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1192
  val extend = I;
33522
737589bb9bb8 adapted Theory_Data;
wenzelm
parents: 33519
diff changeset
  1193
  fun merge (f1, f2) = if is_some f1 then f1 else f2;
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1194
);
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1195
32070
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1196
fun set_code_target_attr f = Code_Target_Attr.map (K (SOME f));
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1197
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1198
fun code_target_attr prefix thm thy =
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1199
  let
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1200
    val attr = the_default ((K o K) I) (Code_Target_Attr.get thy);
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1201
  in thy |> add_warning_eqn thm |> attr prefix thm end;
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1202
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1203
32070
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1204
(* setup *)
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1205
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1206
val _ = Context.>> (Context.map_theory
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1207
  (let
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1208
    fun mk_attribute f = Thm.declaration_attribute (fn thm => Context.mapping (f thm) I);
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1209
    val code_attribute_parser =
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1210
      Args.del |-- Scan.succeed (mk_attribute del_eqn)
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1211
      || Args.$$$ "nbe" |-- Scan.succeed (mk_attribute add_nbe_eqn)
36112
7fa17a225852 user interface for abstract datatypes is an attribute, not a command
haftmann
parents: 35845
diff changeset
  1212
      || Args.$$$ "abstype" |-- Scan.succeed (mk_attribute add_abstype)
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1213
      || Args.$$$ "abstract" |-- Scan.succeed (mk_attribute add_abs_eqn)
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1214
      || (Args.$$$ "target" |-- Args.colon |-- Args.name >>
32070
c670a31c964c clarified code
haftmann
parents: 31998
diff changeset
  1215
           (mk_attribute o code_target_attr))
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1216
      || Scan.succeed (mk_attribute add_warning_eqn);
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1217
  in
35299
4f4d5bf4ea08 proper distinction of code datatypes and abstypes
haftmann
parents: 35226
diff changeset
  1218
    Datatype_Interpretation.init
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1219
    #> Attrib.setup (Binding.name "code") (Scan.lift code_attribute_parser)
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31971
diff changeset
  1220
        "declare theorems for code generation"
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1221
  end));
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
diff changeset
  1222
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1223
end; (*struct*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1224
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1225
35226
b987b803616d a simple concept for datatype invariants
haftmann
parents: 34901
diff changeset
  1226
(* type-safe interfaces for data dependent on executable code *)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1227
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
  1228
functor Code_Data(Data: CODE_DATA_ARGS): CODE_DATA =
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1229
struct
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1230
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1231
type T = Data.T;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1232
exception Data of T;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1233
fun dest (Data x) = x
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1234
34173
458ced35abb8 reduced code generator cache to the baremost minimum
haftmann
parents: 33977
diff changeset
  1235
val kind = Code.declare_data (Data Data.empty);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1236
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1237
val data_op = (kind, Data, dest);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1238
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1239
val change = Code.change_data data_op;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1240
fun change_yield thy = Code.change_yield_data data_op thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1241
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1242
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
  1243
28143
e5c6c4aac52c different bookkeeping for code equations
haftmann
parents: 28054
diff changeset
  1244
structure Code : CODE = struct open Code; end;