author | haftmann |
Tue, 18 Sep 2007 07:46:00 +0200 | |
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parent 24199 | 8be734b5f59f |
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permissions | -rw-r--r-- |
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(* Title: Pure/theory.ML |
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ID: $Id$ |
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Author: Lawrence C Paulson and Markus Wenzel |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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Logical theory content: axioms, definitions, oracles. |
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*) |
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signature BASIC_THEORY = |
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sig |
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val eq_thy: theory * theory -> bool |
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val subthy: theory * theory -> bool |
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end |
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signature THEORY = |
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sig |
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include BASIC_THEORY |
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type theory, theory_ref, exception THEORY and related operations imported from Context;
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include SIGN_THEORY |
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val parents_of: theory -> theory list |
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val ancestors_of: theory -> theory list |
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val begin_theory: string -> theory list -> theory |
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val end_theory: theory -> theory |
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val checkpoint: theory -> theory |
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val copy: theory -> theory |
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val rep_theory: theory -> |
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{axioms: term NameSpace.table, |
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defs: Defs.T, |
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oracles: ((theory * Object.T -> term) * stamp) NameSpace.table} |
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val axiom_space: theory -> NameSpace.T |
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val axiom_table: theory -> term Symtab.table |
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val oracle_space: theory -> NameSpace.T |
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val oracle_table: theory -> ((theory * Object.T -> term) * stamp) 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 check_thy: theory -> theory_ref |
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val deref: theory_ref -> theory |
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val merge: theory * theory -> theory |
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val merge_refs: theory_ref * theory_ref -> theory_ref |
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val merge_list: theory list -> theory |
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val requires: theory -> string -> string -> unit |
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val assert_super: theory -> theory -> theory |
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val cert_axm: theory -> string * term -> string * term |
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val read_axm: theory -> string * string -> string * term |
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val add_axioms: (bstring * string) list -> theory -> theory |
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val add_axioms_i: (bstring * term) list -> theory -> theory |
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val add_deps: string -> string * typ -> (string * typ) list -> theory -> theory |
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val add_defs: bool -> bool -> (bstring * string) list -> theory -> theory |
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val add_defs_i: bool -> bool -> (bstring * term) list -> theory -> theory |
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val add_finals: bool -> string list -> theory -> theory |
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val add_finals_i: bool -> term list -> theory -> theory |
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val add_oracle: bstring * (theory * Object.T -> term) -> theory -> theory |
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end |
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signature THEORY_INTERPRETATOR = |
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sig |
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type T |
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type interpretator = T list -> theory -> theory |
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val add_those: T list -> theory -> theory |
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val all_those: theory -> T list |
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val add_interpretator: interpretator -> theory -> theory |
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val init: theory -> theory |
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end; |
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signature THEORY_INTERPRETATOR_KEY = |
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sig |
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type T |
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val eq: T * T -> bool |
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end; |
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structure Theory = |
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struct |
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(** datatype thy **) |
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datatype thy = Thy of |
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{axioms: term NameSpace.table, |
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defs: Defs.T, |
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oracles: ((theory * Object.T -> term) * stamp) NameSpace.table, |
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consolidate: theory -> theory}; |
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fun make_thy (axioms, defs, oracles, consolidate) = |
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Thy {axioms = axioms, defs = defs, oracles = oracles, consolidate = consolidate}; |
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fun err_dup_axm dup = error ("Duplicate axiom: " ^ quote dup); |
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fun err_dup_ora dup = error ("Duplicate oracle: " ^ quote dup); |
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structure ThyData = TheoryDataFun |
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( |
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type T = thy; |
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val empty = make_thy (NameSpace.empty_table, Defs.empty, NameSpace.empty_table, I); |
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val copy = I; |
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fun extend (Thy {axioms, defs, oracles, consolidate}) = |
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make_thy (NameSpace.empty_table, defs, oracles, consolidate); |
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fun merge pp (thy1, thy2) = |
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let |
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val Thy {axioms = _, defs = defs1, oracles = oracles1, |
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consolidate = consolidate1} = thy1; |
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val Thy {axioms = _, defs = defs2, oracles = oracles2, |
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consolidate = consolidate2} = thy2; |
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val axioms = NameSpace.empty_table; |
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val defs = Defs.merge pp (defs1, defs2); |
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val oracles = NameSpace.merge_tables (eq_snd (op =)) (oracles1, oracles2) |
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handle Symtab.DUP dup => err_dup_ora dup; |
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val consolidate = consolidate1 #> consolidate2; |
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in make_thy (axioms, defs, oracles, consolidate) end; |
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); |
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fun rep_theory thy = ThyData.get thy |> (fn Thy {axioms, defs, oracles, ...} => |
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{axioms = axioms, defs = defs, oracles = oracles}); |
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fun map_thy f = ThyData.map (fn (Thy {axioms, defs, oracles, consolidate}) => |
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make_thy (f (axioms, defs, oracles, consolidate))); |
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fun map_axioms f = map_thy |
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(fn (axioms, defs, oracles, consolidate) => (f axioms, defs, oracles, consolidate)); |
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fun map_defs f = map_thy |
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(fn (axioms, defs, oracles, consolidate) => (axioms, f defs, oracles, consolidate)); |
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fun map_oracles f = map_thy |
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(fn (axioms, defs, oracles, consolidate) => (axioms, defs, f oracles, consolidate)); |
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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 oracle_space = #1 o #oracles o rep_theory; |
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val oracle_table = #2 o #oracles o rep_theory; |
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val axioms_of = Symtab.dest o #2 o #axioms o rep_theory; |
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val defs_of = #defs o rep_theory; |
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fun requires thy name what = |
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if Context.exists_name name thy then () |
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else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what); |
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(* interpretators *) |
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fun add_consolidate f = map_thy |
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(fn (axioms, defs, oracles, consolidate) => (axioms, defs, oracles, consolidate #> f)); |
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fun consolidate thy = |
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let |
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val Thy {consolidate, ...} = ThyData.get thy; |
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in |
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thy |> consolidate |
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end; |
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|
156 |
(** type theory **) |
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|
157 |
|
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|
158 |
(* context operations *) |
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|
159 |
|
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|
160 |
val eq_thy = Context.eq_thy; |
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161 |
val subthy = Context.subthy; |
1526 | 162 |
|
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163 |
fun assert_super thy1 thy2 = |
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164 |
if subthy (thy1, thy2) then thy2 |
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165 |
else raise THEORY ("Not a super theory", [thy1, thy2]); |
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|
166 |
|
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|
167 |
val parents_of = Context.parents_of; |
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|
168 |
val ancestors_of = Context.ancestors_of; |
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|
169 |
|
24137
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|
170 |
val check_thy = Context.check_thy; |
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171 |
val deref = Context.deref; |
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|
172 |
val merge = Context.merge; |
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|
173 |
val merge_refs = Context.merge_refs; |
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|
174 |
|
23600 | 175 |
fun merge_list [] = raise THEORY ("Empty merge of theories", []) |
21608 | 176 |
| merge_list (thy :: thys) = Library.foldl merge (thy, thys); |
177 |
||
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178 |
val begin_theory = Sign.local_path o consolidate oo Context.begin_thy Sign.pp; |
16495 | 179 |
val end_theory = Context.finish_thy; |
180 |
val checkpoint = Context.checkpoint_thy; |
|
181 |
val copy = Context.copy_thy; |
|
182 |
||
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|
183 |
|
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|
184 |
(* signature operations *) |
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|
185 |
|
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|
186 |
structure SignTheory: SIGN_THEORY = Sign; |
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|
187 |
open SignTheory; |
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|
188 |
|
2206 | 189 |
|
3996 | 190 |
|
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|
191 |
(** axioms **) |
1526 | 192 |
|
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193 |
fun all_axioms_of thy = maps axioms_of (thy :: ancestors_of thy); |
16339 | 194 |
|
3814 | 195 |
|
1526 | 196 |
(* prepare axioms *) |
197 |
||
18678 | 198 |
fun err_in_axm msg name = |
199 |
cat_error msg ("The error(s) above occurred in axiom " ^ quote name); |
|
1526 | 200 |
|
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|
201 |
fun cert_axm thy (name, raw_tm) = |
1526 | 202 |
let |
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|
203 |
val (t, T, _) = Sign.certify_prop thy raw_tm |
2979 | 204 |
handle TYPE (msg, _, _) => error msg |
16291 | 205 |
| TERM (msg, _) => error msg; |
1526 | 206 |
in |
9537 | 207 |
Term.no_dummy_patterns t handle TERM (msg, _) => error msg; |
18968
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|
208 |
(name, Sign.no_vars (Sign.pp thy) t) |
9629 | 209 |
end; |
1526 | 210 |
|
22684 | 211 |
fun read_axm thy (name, str) = |
22689 | 212 |
cert_axm thy (name, Sign.read_prop thy str) |
213 |
handle ERROR msg => err_in_axm msg name; |
|
1526 | 214 |
|
215 |
||
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|
216 |
(* add_axioms(_i) *) |
1526 | 217 |
|
16291 | 218 |
local |
219 |
||
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|
220 |
fun gen_add_axioms prep_axm raw_axms thy = thy |> map_axioms (fn axioms => |
1526 | 221 |
let |
16991 | 222 |
val axms = map (apsnd (Compress.term thy o Logic.varify) o prep_axm thy) raw_axms; |
23086 | 223 |
val axioms' = NameSpace.extend_table (Sign.naming_of thy) axms axioms |
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|
224 |
handle Symtab.DUP dup => err_dup_axm dup; |
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|
225 |
in axioms' end); |
1526 | 226 |
|
16291 | 227 |
in |
228 |
||
229 |
val add_axioms = gen_add_axioms read_axm; |
|
230 |
val add_axioms_i = gen_add_axioms cert_axm; |
|
231 |
||
232 |
end; |
|
1526 | 233 |
|
234 |
||
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|
235 |
|
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|
236 |
(** add constant definitions **) |
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|
237 |
|
19708
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|
238 |
(* dependencies *) |
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changeset
|
239 |
|
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changeset
|
240 |
fun dependencies thy unchecked is_def name lhs rhs = |
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changeset
|
241 |
let |
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changeset
|
242 |
val pp = Sign.pp thy; |
a508bde37a81
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parents:
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diff
changeset
|
243 |
val consts = Sign.consts_of thy; |
19727 | 244 |
fun prep const = |
245 |
let val Const (c, T) = Sign.no_vars pp (Const const) |
|
19806 | 246 |
in (c, Consts.typargs consts (c, Compress.typ thy (Logic.varifyT T))) end; |
19708
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parents:
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diff
changeset
|
247 |
|
a508bde37a81
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parents:
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diff
changeset
|
248 |
val lhs_vars = Term.add_tfreesT (#2 lhs) []; |
a508bde37a81
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parents:
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diff
changeset
|
249 |
val rhs_extras = fold (#2 #> Term.fold_atyps (fn TFree v => |
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parents:
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diff
changeset
|
250 |
if member (op =) lhs_vars v then I else insert (op =) v | _ => I)) rhs []; |
a508bde37a81
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parents:
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changeset
|
251 |
val _ = |
a508bde37a81
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parents:
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diff
changeset
|
252 |
if null rhs_extras then () |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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changeset
|
253 |
else error ("Specification depends on extra type variables: " ^ |
a508bde37a81
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parents:
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diff
changeset
|
254 |
commas_quote (map (Pretty.string_of_typ pp o TFree) rhs_extras) ^ |
a508bde37a81
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changeset
|
255 |
"\nThe error(s) above occurred in " ^ quote name); |
24199 | 256 |
in Defs.define pp unchecked is_def name (prep lhs) (map prep rhs) end; |
19708
a508bde37a81
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changeset
|
257 |
|
a508bde37a81
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changeset
|
258 |
fun add_deps a raw_lhs raw_rhs thy = |
a508bde37a81
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changeset
|
259 |
let |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
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diff
changeset
|
260 |
val lhs :: rhs = map (dest_Const o Sign.cert_term thy o Const) (raw_lhs :: raw_rhs); |
a508bde37a81
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wenzelm
parents:
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diff
changeset
|
261 |
val name = if a = "" then (#1 lhs ^ " axiom") else a; |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
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diff
changeset
|
262 |
in thy |> map_defs (dependencies thy false false name lhs rhs) end; |
17706 | 263 |
|
264 |
||
16944 | 265 |
(* check_overloading *) |
9280 | 266 |
|
16944 | 267 |
fun check_overloading thy overloaded (c, T) = |
16291 | 268 |
let |
16944 | 269 |
val declT = |
270 |
(case Sign.const_constraint thy c of |
|
271 |
NONE => error ("Undeclared constant " ^ quote c) |
|
272 |
| SOME declT => declT); |
|
19806 | 273 |
val T' = Logic.varifyT T; |
16944 | 274 |
|
275 |
fun message txt = |
|
276 |
[Pretty.block [Pretty.str "Specification of constant ", |
|
277 |
Pretty.str c, Pretty.str " ::", Pretty.brk 1, Pretty.quote (Sign.pretty_typ thy T)], |
|
278 |
Pretty.str txt] |> Pretty.chunks |> Pretty.string_of; |
|
16291 | 279 |
in |
16944 | 280 |
if Sign.typ_instance thy (declT, T') then () |
281 |
else if Type.raw_instance (declT, T') then |
|
282 |
error (Library.setmp show_sorts true |
|
283 |
message "imposes additional sort constraints on the constant declaration") |
|
284 |
else if overloaded then () |
|
285 |
else warning (message "is strictly less general than the declared type"); |
|
286 |
(c, T) |
|
9280 | 287 |
end; |
288 |
||
3767
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wenzelm
parents:
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diff
changeset
|
289 |
|
16291 | 290 |
(* check_def *) |
291 |
||
19630 | 292 |
fun check_def thy unchecked overloaded (bname, tm) defs = |
16291 | 293 |
let |
17706 | 294 |
val name = Sign.full_name thy bname; |
19693 | 295 |
val (lhs_const, rhs) = Sign.cert_def (Sign.pp thy) tm; |
16944 | 296 |
val rhs_consts = fold_aterms (fn Const const => insert (op =) const | _ => I) rhs []; |
18943 | 297 |
val _ = check_overloading thy overloaded lhs_const; |
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
298 |
in defs |> dependencies thy unchecked true name lhs_const rhs_consts end |
18678 | 299 |
handle ERROR msg => cat_error msg (Pretty.string_of (Pretty.block |
16883 | 300 |
[Pretty.str ("The error(s) above occurred in definition " ^ quote bname ^ ":"), |
19693 | 301 |
Pretty.fbrk, Pretty.quote (Sign.pretty_term thy tm)])); |
3767
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wenzelm
parents:
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diff
changeset
|
302 |
|
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
303 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
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changeset
|
304 |
(* add_defs(_i) *) |
3767
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moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
305 |
|
16291 | 306 |
local |
9320 | 307 |
|
19630 | 308 |
fun gen_add_defs prep_axm unchecked overloaded raw_axms thy = |
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
309 |
let val axms = map (prep_axm thy) raw_axms in |
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
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diff
changeset
|
310 |
thy |
19630 | 311 |
|> map_defs (fold (check_def thy unchecked overloaded) axms) |
9320 | 312 |
|> add_axioms_i axms |
3767
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moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
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diff
changeset
|
313 |
end; |
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
314 |
|
16291 | 315 |
in |
316 |
||
317 |
val add_defs_i = gen_add_defs cert_axm; |
|
318 |
val add_defs = gen_add_defs read_axm; |
|
319 |
||
320 |
end; |
|
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
321 |
|
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset
|
322 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
323 |
(* add_finals(_i) *) |
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
324 |
|
16291 | 325 |
local |
326 |
||
17706 | 327 |
fun gen_add_finals prep_term overloaded args thy = |
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
328 |
let |
17706 | 329 |
fun const_of (Const const) = const |
330 |
| const_of (Free _) = error "Attempt to finalize variable (or undeclared constant)" |
|
331 |
| const_of _ = error "Attempt to finalize non-constant term"; |
|
19708
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
332 |
fun specify (c, T) = dependencies thy false false (c ^ " axiom") (c, T) []; |
a508bde37a81
added add_deps, which actually records dependencies of consts (unlike add_finals);
wenzelm
parents:
19700
diff
changeset
|
333 |
val finalize = specify o check_overloading thy overloaded o const_of o prep_term thy; |
17706 | 334 |
in thy |> map_defs (fold finalize args) end; |
16291 | 335 |
|
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
336 |
in |
16291 | 337 |
|
17706 | 338 |
val add_finals = gen_add_finals Sign.read_term; |
339 |
val add_finals_i = gen_add_finals Sign.cert_term; |
|
16291 | 340 |
|
14223
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
341 |
end; |
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
342 |
|
0ee05eef881b
Added support for making constants final, that is, ensuring that no
skalberg
parents:
14204
diff
changeset
|
343 |
|
3878 | 344 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
345 |
(** add oracle **) |
3814 | 346 |
|
16443
82a116532e3e
type theory, theory_ref, exception THEORY and related operations imported from Context;
wenzelm
parents:
16369
diff
changeset
|
347 |
fun add_oracle (bname, oracle) thy = thy |> map_oracles (fn oracles => |
23086 | 348 |
NameSpace.extend_table (Sign.naming_of thy) [(bname, (oracle, stamp ()))] oracles |
23655
d2d1138e0ddc
replaced exception TableFun/GraphFun.DUPS by TableFun/GraphFun.DUP;
wenzelm
parents:
23600
diff
changeset
|
349 |
handle Symtab.DUP dup => err_dup_ora dup); |
3885 | 350 |
|
1526 | 351 |
end; |
352 |
||
24626
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
353 |
functor TheoryInterpretatorFun(Key: THEORY_INTERPRETATOR_KEY) : THEORY_INTERPRETATOR = |
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
354 |
struct |
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
355 |
|
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
356 |
open Key; |
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
357 |
|
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
358 |
type interpretator = T list -> theory -> theory; |
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
24199
diff
changeset
|
359 |
|
85eceef2edc7
introduced generic concepts for theory interpretators
haftmann
parents:
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fun apply ips x = fold_rev (fn (_, f) => f x) ips; |
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|
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structure InterpretatorData = TheoryDataFun ( |
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type T = ((serial * interpretator) list * T list) * (theory -> theory); |
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val empty = (([], []), I); |
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val extend = I; |
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val copy = I; |
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fun merge pp (((interpretators1, done1), upd1), ((interpretators2, done2), upd2)) = |
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let |
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fun diff (interpretators1 : (serial * interpretator) list, done1) |
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(interpretators2, done2) = let |
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val interpretators = subtract (eq_fst (op =)) interpretators1 interpretators2; |
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val undone = subtract eq done2 done1; |
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in apply interpretators undone end; |
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val interpretators = AList.merge (op =) (K true) (interpretators1, interpretators2); |
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val done = Library.merge eq (done1, done2); |
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val upd_new = diff (interpretators2, done2) (interpretators1, done1) |
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#> diff (interpretators1, done1) (interpretators2, done2); |
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val upd = upd1 #> upd2 #> upd_new; |
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in ((interpretators, done), upd) end; |
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); |
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381 |
|
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fun consolidate thy = |
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let |
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val (_, upd) = InterpretatorData.get thy; |
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in |
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thy |> upd |> (InterpretatorData.map o apsnd) (K I) |
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387 |
end; |
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388 |
|
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val init = Theory.add_consolidate consolidate; |
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390 |
|
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391 |
fun add_those xs thy = |
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392 |
let |
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val ((interpretators, _), _) = InterpretatorData.get thy; |
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394 |
in |
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395 |
thy |
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|> apply interpretators xs |
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|> (InterpretatorData.map o apfst o apsnd) (append xs) |
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398 |
end; |
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|
399 |
|
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val all_those = snd o fst o InterpretatorData.get; |
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401 |
|
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402 |
fun add_interpretator interpretator thy = |
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let |
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404 |
val ((interpretators, xs), _) = InterpretatorData.get thy; |
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405 |
in |
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406 |
thy |
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|> interpretator (rev xs) |
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|> (InterpretatorData.map o apfst o apfst) (cons (serial (), interpretator)) |
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409 |
end; |
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410 |
|
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411 |
end; |
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412 |
|
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413 |
structure Theory: THEORY = Theory; |
3767
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414 |
structure BasicTheory: BASIC_THEORY = Theory; |
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415 |
open BasicTheory; |