author | wenzelm |
Mon, 04 Jan 2010 23:20:35 +0100 | |
changeset 34259 | 2ba492b8b6e8 |
parent 34245 | 25bd3ed2ac9f |
child 35845 | e5980f0ad025 |
permissions | -rw-r--r-- |
1526 | 1 |
(* Title: Pure/theory.ML |
2 |
Author: Lawrence C Paulson and Markus Wenzel |
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||
28290 | 4 |
Logical theory content: axioms, definitions, and begin/end wrappers. |
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*) |
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|
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removed obsolete SIGN_THEORY -- no name aliases in structure Theory;
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7 |
signature THEORY = |
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
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8 |
sig |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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val eq_thy: theory * theory -> bool |
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val subthy: theory * theory -> bool |
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val assert_super: theory -> theory -> theory |
22684 | 12 |
val parents_of: theory -> theory list |
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val ancestors_of: theory -> theory list |
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24666 | 14 |
val check_thy: theory -> theory_ref |
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val deref: theory_ref -> theory |
|
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val merge: theory * theory -> theory |
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val merge_refs: theory_ref * theory_ref -> theory_ref |
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val merge_list: theory list -> theory |
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16495 | 19 |
val checkpoint: theory -> theory |
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val copy: theory -> theory |
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24666 | 21 |
val requires: theory -> string -> string -> unit |
33095
bbd52d2f8696
renamed NameSpace to Name_Space -- also to emphasize its subtle change in semantics;
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val axiom_space: theory -> Name_Space.T |
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val axiom_table: theory -> term Symtab.table |
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val axioms_of: theory -> (string * term) list |
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val all_axioms_of: theory -> (string * term) list |
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val defs_of: theory -> Defs.T |
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val at_begin: (theory -> theory option) -> theory -> theory |
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val at_end: (theory -> theory option) -> theory -> theory |
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val begin_theory: string -> theory list -> theory |
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val end_theory: theory -> theory |
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val add_axioms_i: (binding * term) list -> theory -> theory |
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Theory.add_axioms/add_defs: replaced old bstring by binding;
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val add_axioms: (binding * string) list -> theory -> theory |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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val add_deps: string -> string * typ -> (string * typ) list -> theory -> theory |
29581 | 34 |
val add_defs_i: bool -> bool -> (binding * term) list -> theory -> theory |
30337
eb189f7e43a1
Theory.add_axioms/add_defs: replaced old bstring by binding;
wenzelm
parents:
30218
diff
changeset
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35 |
val add_defs: bool -> bool -> (binding * string) list -> theory -> theory |
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val add_finals_i: bool -> term list -> theory -> theory |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
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37 |
val add_finals: bool -> string list -> theory -> theory |
33173
b8ca12f6681a
eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
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38 |
val specify_const: (binding * typ) * mixfix -> theory -> term * theory |
16495 | 39 |
end |
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|
24666 | 41 |
structure Theory: THEORY = |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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struct |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
43 |
|
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
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|
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(** theory context operations **) |
16443
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
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46 |
|
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
47 |
val eq_thy = Context.eq_thy; |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
48 |
val subthy = Context.subthy; |
1526 | 49 |
|
24626
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introduced generic concepts for theory interpretators
haftmann
parents:
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50 |
fun assert_super thy1 thy2 = |
85eceef2edc7
introduced generic concepts for theory interpretators
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if subthy (thy1, thy2) then thy2 |
85eceef2edc7
introduced generic concepts for theory interpretators
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else raise THEORY ("Not a super theory", [thy1, thy2]); |
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
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53 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
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|
54 |
val parents_of = Context.parents_of; |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
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55 |
val ancestors_of = Context.ancestors_of; |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
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56 |
|
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replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
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val check_thy = Context.check_thy; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
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|
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val deref = Context.deref; |
24666 | 59 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
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changeset
|
60 |
val merge = Context.merge; |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
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changeset
|
61 |
val merge_refs = Context.merge_refs; |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
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62 |
|
23600 | 63 |
fun merge_list [] = raise THEORY ("Empty merge of theories", []) |
21608 | 64 |
| merge_list (thy :: thys) = Library.foldl merge (thy, thys); |
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||
16495 | 66 |
val checkpoint = Context.checkpoint_thy; |
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val copy = Context.copy_thy; |
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||
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fun requires thy name what = |
29092 | 70 |
if exists (fn thy' => Context.theory_name thy' = name) (thy :: ancestors_of thy) then () |
24666 | 71 |
else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what); |
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25059 | 75 |
(** datatype thy **) |
24666 | 76 |
|
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type wrapper = (theory -> theory option) * stamp; |
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78 |
||
79 |
fun apply_wrappers (wrappers: wrapper list) = |
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25059 | 80 |
perhaps (perhaps_loop (perhaps_apply (map fst wrappers))); |
24666 | 81 |
|
82 |
datatype thy = Thy of |
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33095
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renamed NameSpace to Name_Space -- also to emphasize its subtle change in semantics;
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{axioms: term Name_Space.table, |
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defs: Defs.T, |
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wrappers: wrapper list * wrapper list}; |
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86 |
||
28290 | 87 |
fun make_thy (axioms, defs, wrappers) = Thy {axioms = axioms, defs = defs, wrappers = wrappers}; |
24666 | 88 |
|
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2ba492b8b6e8
discontinued old TheoryDataFun, but retain Theory_Data_PP with is Pretty.pp argument to merge (still required in exotic situations -- hard to get rid of);
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structure ThyData = Theory_Data_PP |
24666 | 90 |
( |
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type T = thy; |
|
33159 | 92 |
val empty_axioms = Name_Space.empty_table "axiom" : term Name_Space.table; |
33096 | 93 |
val empty = make_thy (empty_axioms, Defs.empty, ([], [])); |
24666 | 94 |
|
33096 | 95 |
fun extend (Thy {axioms = _, defs, wrappers}) = make_thy (empty_axioms, defs, wrappers); |
24666 | 96 |
|
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fun merge pp (thy1, thy2) = |
|
98 |
let |
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28290 | 99 |
val Thy {axioms = _, defs = defs1, wrappers = (bgs1, ens1)} = thy1; |
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val Thy {axioms = _, defs = defs2, wrappers = (bgs2, ens2)} = thy2; |
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24666 | 101 |
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33096 | 102 |
val axioms' = empty_axioms; |
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val defs' = Defs.merge pp (defs1, defs2); |
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val bgs' = Library.merge (eq_snd op =) (bgs1, bgs2); |
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val ens' = Library.merge (eq_snd op =) (ens1, ens2); |
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28290 | 106 |
in make_thy (axioms', defs', (bgs', ens')) end; |
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); |
108 |
||
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fun rep_theory thy = ThyData.get thy |> (fn Thy args => args); |
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||
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fun map_thy f = ThyData.map (fn (Thy {axioms, defs, wrappers}) => |
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make_thy (f (axioms, defs, wrappers))); |
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114 |
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fun map_axioms f = map_thy (fn (axioms, defs, wrappers) => (f axioms, defs, wrappers)); |
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fun map_defs f = map_thy (fn (axioms, defs, wrappers) => (axioms, f defs, wrappers)); |
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fun map_wrappers f = map_thy (fn (axioms, defs, wrappers) => (axioms, defs, f wrappers)); |
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(* basic operations *) |
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val axiom_space = #1 o #axioms o rep_theory; |
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val axiom_table = #2 o #axioms o rep_theory; |
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val axioms_of = Symtab.dest o #2 o #axioms o rep_theory; |
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fun all_axioms_of thy = maps axioms_of (thy :: ancestors_of thy); |
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val defs_of = #defs o rep_theory; |
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(* begin/end theory *) |
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val begin_wrappers = rev o #1 o #wrappers o rep_theory; |
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val end_wrappers = rev o #2 o #wrappers o rep_theory; |
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fun at_begin f = map_wrappers (apfst (cons (f, stamp ()))); |
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fun at_end f = map_wrappers (apsnd (cons (f, stamp ()))); |
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fun begin_theory name imports = |
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let |
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26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26668
diff
changeset
|
141 |
val thy = Context.begin_thy Syntax.pp_global name imports; |
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val wrappers = begin_wrappers thy; |
33168 | 143 |
in |
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thy |
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|> Sign.local_path |
|
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|> Sign.map_naming (Name_Space.set_theory_name name) |
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|> apply_wrappers wrappers |
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end; |
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24666 | 149 |
|
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fun end_theory thy = |
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thy |> apply_wrappers (end_wrappers thy) |> Context.finish_thy; |
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152 |
||
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
16369
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changeset
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24666 | 155 |
(** add axioms **) |
3814 | 156 |
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(* prepare axioms *) |
158 |
||
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fun cert_axm thy (b, raw_tm) = |
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let |
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d89327de0b3c
removed redundant Sign.certify_prop, use Sign.cert_prop instead;
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161 |
val t = Sign.cert_prop thy raw_tm |
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handle TYPE (msg, _, _) => error msg |
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| TERM (msg, _) => error msg; |
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in |
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Term.no_dummy_patterns t handle TERM (msg, _) => error msg; |
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(b, Sign.no_vars (Syntax.pp_global thy) t) |
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end; |
1526 | 168 |
|
30337
eb189f7e43a1
Theory.add_axioms/add_defs: replaced old bstring by binding;
wenzelm
parents:
30218
diff
changeset
|
169 |
fun read_axm thy (b, str) = |
eb189f7e43a1
Theory.add_axioms/add_defs: replaced old bstring by binding;
wenzelm
parents:
30218
diff
changeset
|
170 |
cert_axm thy (b, Syntax.read_prop_global thy str) handle ERROR msg => |
33092
c859019d3ac5
eliminated separate stamp -- NameSpace.define/merge etc. ensure uniqueness already;
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|
171 |
cat_error msg ("The error(s) above occurred in axiom " ^ quote (Binding.str_of b)); |
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|
173 |
||
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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changeset
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174 |
(* add_axioms(_i) *) |
1526 | 175 |
|
16291 | 176 |
local |
177 |
||
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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|
178 |
fun gen_add_axioms prep_axm raw_axms thy = thy |> map_axioms (fn axioms => |
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let |
29581 | 180 |
val axms = map (apsnd Logic.varify o prep_axm thy) raw_axms; |
33095
bbd52d2f8696
renamed NameSpace to Name_Space -- also to emphasize its subtle change in semantics;
wenzelm
parents:
33092
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changeset
|
181 |
val axioms' = fold (#2 oo Name_Space.define true (Sign.naming_of thy)) axms axioms; |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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parents:
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diff
changeset
|
182 |
in axioms' end); |
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|
16291 | 184 |
in |
185 |
||
29581 | 186 |
val add_axioms_i = gen_add_axioms cert_axm; |
16291 | 187 |
val add_axioms = gen_add_axioms read_axm; |
188 |
||
189 |
end; |
|
1526 | 190 |
|
191 |
||
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
192 |
|
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
193 |
(** add constant definitions **) |
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
194 |
|
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
195 |
(* dependencies *) |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
196 |
|
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
197 |
fun dependencies thy unchecked def description lhs rhs = |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
198 |
let |
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26668
diff
changeset
|
199 |
val pp = Syntax.pp_global thy; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
200 |
val consts = Sign.consts_of thy; |
19727 | 201 |
fun prep const = |
202 |
let val Const (c, T) = Sign.no_vars pp (Const const) |
|
26631
d6b6c74a8bcf
rep_cterm/rep_thm: no longer dereference theory_ref;
wenzelm
parents:
25059
diff
changeset
|
203 |
in (c, Consts.typargs consts (c, Logic.varifyT T)) end; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
204 |
|
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
205 |
val lhs_vars = Term.add_tfreesT (#2 lhs) []; |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
206 |
val rhs_extras = fold (#2 #> Term.fold_atyps (fn TFree v => |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
207 |
if member (op =) lhs_vars v then I else insert (op =) v | _ => I)) rhs []; |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
208 |
val _ = |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
209 |
if null rhs_extras then () |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
210 |
else error ("Specification depends on extra type variables: " ^ |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
211 |
commas_quote (map (Pretty.string_of_typ pp o TFree) rhs_extras) ^ |
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
212 |
"\nThe error(s) above occurred in " ^ quote description); |
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
213 |
in Defs.define pp unchecked def description (prep lhs) (map prep rhs) end; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
214 |
|
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
215 |
fun add_deps a raw_lhs raw_rhs thy = |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
216 |
let |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
217 |
val lhs :: rhs = map (dest_Const o Sign.cert_term thy o Const) (raw_lhs :: raw_rhs); |
33701
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
218 |
val description = if a = "" then #1 lhs ^ " axiom" else a; |
9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
wenzelm
parents:
33173
diff
changeset
|
219 |
in thy |> map_defs (dependencies thy false NONE description lhs rhs) end; |
17706 | 220 |
|
33173
b8ca12f6681a
eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
wenzelm
parents:
33168
diff
changeset
|
221 |
fun specify_const decl thy = |
b8ca12f6681a
eliminated obsolete tags for types/consts -- now handled via name space, in strongly typed fashion;
wenzelm
parents:
33168
diff
changeset
|
222 |
let val (t as Const const, thy') = Sign.declare_const decl thy |
28112
691993ef6abe
simplified specify_const: canonical args, global deps;
wenzelm
parents:
28017
diff
changeset
|
223 |
in (t, add_deps "" const [] thy') end; |
25017 | 224 |
|
17706 | 225 |
|
16944 | 226 |
(* check_overloading *) |
9280 | 227 |
|
16944 | 228 |
fun check_overloading thy overloaded (c, T) = |
16291 | 229 |
let |
24763 | 230 |
val declT = Sign.the_const_constraint thy c |
231 |
handle TYPE (msg, _, _) => error msg; |
|
19806 | 232 |
val T' = Logic.varifyT T; |
16944 | 233 |
|
234 |
fun message txt = |
|
235 |
[Pretty.block [Pretty.str "Specification of constant ", |
|
26939
1035c89b4c02
moved global pretty/string_of functions from Sign to Syntax;
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236 |
Pretty.str c, Pretty.str " ::", Pretty.brk 1, Pretty.quote (Syntax.pretty_typ_global thy T)], |
16944 | 237 |
Pretty.str txt] |> Pretty.chunks |> Pretty.string_of; |
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in |
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if Sign.typ_instance thy (declT, T') then () |
240 |
else if Type.raw_instance (declT, T') then |
|
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indicate CRITICAL nature of various setmp combinators;
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241 |
error (setmp_CRITICAL show_sorts true |
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message "imposes additional sort constraints on the constant declaration") |
243 |
else if overloaded then () |
|
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else warning (message "is strictly less general than the declared type"); |
|
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(c, T) |
|
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end; |
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||
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248 |
|
16291 | 249 |
(* check_def *) |
250 |
||
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fun check_def thy unchecked overloaded (b, tm) defs = |
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let |
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4ec3f95190bf
dest/cert_def: replaced Pretty.pp by explicit Proof.context;
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253 |
val ctxt = ProofContext.init thy; |
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val name = Sign.full_name thy b; |
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255 |
val (lhs_const, rhs) = Sign.cert_def ctxt tm; |
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val rhs_consts = fold_aterms (fn Const const => insert (op =) const | _ => I) rhs []; |
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val _ = check_overloading thy overloaded lhs_const; |
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9dd1079cec3a
primitive defs: clarified def (axiom name) vs. description;
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changeset
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258 |
in defs |> dependencies thy unchecked (SOME name) name lhs_const rhs_consts end |
18678 | 259 |
handle ERROR msg => cat_error msg (Pretty.string_of (Pretty.block |
30218 | 260 |
[Pretty.str ("The error(s) above occurred in definition " ^ quote (Binding.str_of b) ^ ":"), |
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moved global pretty/string_of functions from Sign to Syntax;
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changeset
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261 |
Pretty.fbrk, Pretty.quote (Syntax.pretty_term_global thy tm)])); |
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262 |
|
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changeset
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263 |
|
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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|
264 |
(* add_defs(_i) *) |
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diff
changeset
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265 |
|
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local |
9320 | 267 |
|
19630 | 268 |
fun gen_add_defs prep_axm unchecked overloaded raw_axms thy = |
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let val axms = map (prep_axm thy) raw_axms in |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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changeset
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270 |
thy |
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|> map_defs (fold (check_def thy unchecked overloaded) axms) |
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|> add_axioms_i axms |
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273 |
end; |
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moved theory stuff (add_defs etc.) here from drule.ML;
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changeset
|
274 |
|
16291 | 275 |
in |
276 |
||
277 |
val add_defs_i = gen_add_defs cert_axm; |
|
278 |
val add_defs = gen_add_defs read_axm; |
|
279 |
||
280 |
end; |
|
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changeset
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281 |
|
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282 |
|
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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283 |
(* add_finals(_i) *) |
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Added support for making constants final, that is, ensuring that no
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284 |
|
16291 | 285 |
local |
286 |
||
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fun gen_add_finals prep_term overloaded args thy = |
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Added support for making constants final, that is, ensuring that no
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changeset
|
288 |
let |
17706 | 289 |
fun const_of (Const const) = const |
290 |
| const_of (Free _) = error "Attempt to finalize variable (or undeclared constant)" |
|
291 |
| const_of _ = error "Attempt to finalize non-constant term"; |
|
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primitive defs: clarified def (axiom name) vs. description;
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parents:
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diff
changeset
|
292 |
fun specify (c, T) = dependencies thy false NONE (c ^ " axiom") (c, T) []; |
24708 | 293 |
val finalize = specify o check_overloading thy overloaded o const_of o |
294 |
Sign.cert_term thy o prep_term thy; |
|
17706 | 295 |
in thy |> map_defs (fold finalize args) end; |
16291 | 296 |
|
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Added support for making constants final, that is, ensuring that no
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parents:
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diff
changeset
|
297 |
in |
16291 | 298 |
|
29581 | 299 |
val add_finals_i = gen_add_finals (K I); |
24708 | 300 |
val add_finals = gen_add_finals Syntax.read_term_global; |
16291 | 301 |
|
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Added support for making constants final, that is, ensuring that no
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parents:
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diff
changeset
|
302 |
end; |
0ee05eef881b
Added support for making constants final, that is, ensuring that no
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parents:
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diff
changeset
|
303 |
|
1526 | 304 |
end; |