author | wenzelm |
Wed, 06 Jul 2005 20:00:24 +0200 | |
changeset 16719 | 5c5eb939f6eb |
parent 16594 | 5d73fbf4eb1e |
child 16894 | 40f80823b451 |
permissions | -rw-r--r-- |
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(* Title: Pure/context.ML |
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ID: $Id$ |
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Author: Markus Wenzel, TU Muenchen |
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Generic theory contexts with unique identity, arbitrarily typed data, |
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development graph and history support. Implicit theory contexts in ML. |
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Generic proof contexts with arbitrarily typed data. |
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*) |
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signature BASIC_CONTEXT = |
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sig |
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type theory |
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type theory_ref |
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exception THEORY of string * theory list |
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val context: theory -> unit |
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val the_context: unit -> theory |
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end; |
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signature CONTEXT = |
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sig |
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include BASIC_CONTEXT |
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exception DATA_FAIL of exn * string |
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(*theory context*) |
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val theory_name: theory -> string |
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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 is_stale: theory -> bool |
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val ProtoPureN: string |
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val PureN: string |
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val CPureN: string |
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val draftN: string |
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val exists_name: string -> theory -> bool |
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val names_of: theory -> string list |
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val pretty_thy: theory -> Pretty.T |
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val string_of_thy: theory -> string |
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val pprint_thy: theory -> pprint_args -> unit |
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val pretty_abbrev_thy: theory -> Pretty.T |
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val str_of_thy: theory -> string |
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val check_thy: theory -> theory |
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val eq_thy: theory * theory -> bool |
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val subthy: theory * theory -> bool |
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val joinable: theory * theory -> bool |
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val merge: theory * theory -> theory (*exception TERM*) |
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val merge_refs: theory_ref * theory_ref -> theory_ref (*exception TERM*) |
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val self_ref: theory -> theory_ref |
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val deref: theory_ref -> theory |
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val copy_thy: theory -> theory |
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val checkpoint_thy: theory -> theory |
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val finish_thy: theory -> theory |
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val theory_data_of: theory -> string list |
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val pre_pure_thy: theory |
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val begin_thy: (theory -> Pretty.pp) -> string -> theory list -> theory |
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(*ML theory context*) |
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val get_context: unit -> theory option |
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val set_context: theory option -> unit |
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val reset_context: unit -> unit |
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val setmp: theory option -> ('a -> 'b) -> 'a -> 'b |
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val pass: theory option -> ('a -> 'b) -> 'a -> 'b * theory option |
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val pass_theory: theory -> ('a -> 'b) -> 'a -> 'b * theory |
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val save: ('a -> 'b) -> 'a -> 'b |
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val >> : (theory -> theory) -> unit |
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val ml_output: (string -> unit) * (string -> unit) |
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val use_mltext: string -> bool -> theory option -> unit |
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val use_mltext_theory: string -> bool -> theory -> theory |
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val use_let: string -> string -> string -> theory -> theory |
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val add_setup: (theory -> theory) list -> unit |
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val setup: unit -> (theory -> theory) list |
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(*proof context*) |
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type proof |
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val theory_of_proof: proof -> theory |
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val init_proof: theory -> proof |
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val proof_data_of: theory -> string list |
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(*generic context*) |
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datatype context = Theory of theory | Proof of proof |
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val theory_of: context -> theory |
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val proof_of: context -> proof |
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end; |
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signature PRIVATE_CONTEXT = |
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sig |
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include CONTEXT |
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structure TheoryData: |
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sig |
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val declare: string -> Object.T -> (Object.T -> Object.T) -> (Object.T -> Object.T) -> |
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(Pretty.pp -> Object.T * Object.T -> Object.T) -> serial |
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val init: serial -> theory -> theory |
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val get: serial -> (Object.T -> 'a) -> theory -> 'a |
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val put: serial -> ('a -> Object.T) -> 'a -> theory -> theory |
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end |
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structure ProofData: |
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sig |
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val declare: string -> (theory -> Object.T) -> serial |
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val init: serial -> theory -> theory |
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val get: serial -> (Object.T -> 'a) -> proof -> 'a |
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val put: serial -> ('a -> Object.T) -> 'a -> proof -> proof |
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end |
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end; |
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structure Context: PRIVATE_CONTEXT = |
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struct |
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(*** theory context ***) |
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(** theory data **) |
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(* data kinds and access methods *) |
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exception DATA_FAIL of exn * string; |
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local |
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type kind = |
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{name: string, |
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empty: Object.T, |
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copy: Object.T -> Object.T, |
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extend: Object.T -> Object.T, |
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merge: Pretty.pp -> Object.T * Object.T -> Object.T}; |
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val kinds = ref (Inttab.empty: kind Inttab.table); |
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fun invoke meth_name meth_fn k = |
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(case Inttab.lookup (! kinds, k) of |
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SOME kind => meth_fn kind |> transform_failure (fn exn => |
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DATA_FAIL (exn, "Theory data method " ^ #name kind ^ "." ^ meth_name ^ " failed")) |
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| NONE => sys_error ("Invalid theory data identifier " ^ string_of_int k)); |
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in |
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fun invoke_name k = invoke "name" (K o #name) k (); |
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fun invoke_empty k = invoke "empty" (K o #empty) k (); |
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val invoke_copy = invoke "copy" #copy; |
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val invoke_extend = invoke "extend" #extend; |
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fun invoke_merge pp = invoke "merge" (fn kind => #merge kind pp); |
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fun declare_theory_data name empty copy extend merge = |
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let |
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val k = serial (); |
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val kind = {name = name, empty = empty, copy = copy, extend = extend, merge = merge}; |
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val _ = conditional (Inttab.exists (equal name o #name o #2) (! kinds)) (fn () => |
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warning ("Duplicate declaration of theory data " ^ quote name)); |
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val _ = kinds := Inttab.update ((k, kind), ! kinds); |
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in k end; |
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val copy_data = Inttab.map' invoke_copy; |
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val extend_data = Inttab.map' invoke_extend; |
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fun merge_data pp = Inttab.join (SOME oo invoke_merge pp) o pairself extend_data; |
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end; |
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(** datatype theory **) |
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datatype theory = |
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Theory of |
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(*identity*) |
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{self: theory ref option, (*dynamic self reference -- follows theory changes*) |
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id: serial * string, (*identifier of this theory*) |
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ids: string Inttab.table, (*identifiers of ancestors*) |
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iids: string Inttab.table} * (*identifiers of intermediate checkpoints*) |
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(*data*) |
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{theory: Object.T Inttab.table, (*theory data record*) |
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proof: unit Inttab.table} * (*proof data kinds*) |
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(*ancestry*) |
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{parents: theory list, (*immediate predecessors*) |
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ancestors: theory list} * (*all predecessors*) |
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(*history*) |
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{name: string, (*prospective name of finished theory*) |
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version: int, (*checkpoint counter*) |
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intermediates: theory list}; (*intermediate checkpoints*) |
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exception THEORY of string * theory list; |
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173 |
|
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fun rep_theory (Theory args) = args; |
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|
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val identity_of = #1 o rep_theory; |
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val data_of = #2 o rep_theory; |
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val ancestry_of = #3 o rep_theory; |
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val history_of = #4 o rep_theory; |
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|
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fun make_identity self id ids iids = {self = self, id = id, ids = ids, iids = iids}; |
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fun make_data theory proof = {theory = theory, proof = proof}; |
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fun make_ancestry parents ancestors = {parents = parents, ancestors = ancestors}; |
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fun make_history name vers ints = {name = name, version = vers, intermediates = ints}; |
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|
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fun map_theory f {theory, proof} = make_data (f theory) proof; |
187 |
fun map_proof f {theory, proof} = make_data theory (f proof); |
|
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||
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val the_self = the o #self o identity_of; |
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val parents_of = #parents o ancestry_of; |
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val ancestors_of = #ancestors o ancestry_of; |
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val theory_name = #name o history_of; |
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193 |
|
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194 |
|
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(* staleness *) |
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|
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fun eq_id ((i: int, _), (j, _)) = (i = j); |
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198 |
|
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fun is_stale |
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(Theory ({self = SOME (ref (Theory ({id = id', ...}, _, _, _))), id, ...}, _, _, _)) = |
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not (eq_id (id, id')) |
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| is_stale (Theory ({self = NONE, ...}, _, _, _)) = true; |
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203 |
|
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fun vitalize (thy as Theory ({self = SOME r, ...}, _, _, _)) = (r := thy; thy) |
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| vitalize (thy as Theory ({self = NONE, id, ids, iids}, data, ancestry, history)) = |
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let |
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val r = ref thy; |
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val thy' = Theory (make_identity (SOME r) id ids iids, data, ancestry, history); |
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in r := thy'; thy' end; |
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211 |
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(* names *) |
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213 |
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val ProtoPureN = "ProtoPure"; |
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val PureN = "Pure"; |
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val CPureN = "CPure"; |
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val draftN = "#"; |
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fun draft_id (_, name) = (name = draftN); |
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val is_draft = draft_id o #id o identity_of; |
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221 |
|
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fun exists_name name (Theory ({id, ids, iids, ...}, _, _, _)) = |
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name = #2 id orelse |
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Inttab.exists (equal name o #2) ids orelse |
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Inttab.exists (equal name o #2) iids; |
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226 |
|
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fun names_of (Theory ({id, ids, iids, ...}, _, _, _)) = |
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rev (#2 id :: Inttab.fold (cons o #2) iids (Inttab.fold (cons o #2) ids [])); |
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229 |
|
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fun pretty_thy thy = |
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Pretty.str_list "{" "}" (names_of thy @ (if is_stale thy then ["!"] else [])); |
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232 |
|
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val string_of_thy = Pretty.string_of o pretty_thy; |
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val pprint_thy = Pretty.pprint o pretty_thy; |
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235 |
|
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fun pretty_abbrev_thy thy = |
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let |
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val names = names_of thy; |
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val n = length names; |
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val abbrev = if n > 5 then "..." :: List.drop (names, n - 5) else names; |
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in Pretty.str_list "{" "}" abbrev end; |
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242 |
|
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val str_of_thy = Pretty.str_of o pretty_abbrev_thy; |
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244 |
|
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245 |
|
16533 | 246 |
(* consistency *) (*exception TERM*) |
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247 |
|
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fun check_thy thy = |
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if is_stale thy then |
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raise TERM ("Stale theory encountered:\n" ^ string_of_thy thy, []) |
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251 |
else thy; |
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252 |
|
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253 |
fun check_ins id ids = |
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if draft_id id orelse is_some (Inttab.lookup (ids, #1 id)) then ids |
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else if Inttab.exists (equal (#2 id) o #2) ids then |
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raise TERM ("Different versions of theory component " ^ quote (#2 id), []) |
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else Inttab.update (id, ids); |
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258 |
|
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259 |
fun check_insert intermediate id (ids, iids) = |
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260 |
let val ids' = check_ins id ids and iids' = check_ins id iids |
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261 |
in if intermediate then (ids, iids') else (ids', iids) end; |
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262 |
|
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263 |
fun check_merge |
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264 |
(Theory ({id = id1, ids = ids1, iids = iids1, ...}, _, _, history1)) |
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265 |
(Theory ({id = id2, ids = ids2, iids = iids2, ...}, _, _, history2)) = |
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266 |
(Inttab.fold check_ins ids2 ids1, Inttab.fold check_ins iids2 iids1) |
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|> check_insert (#version history1 > 0) id1 |
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|> check_insert (#version history2 > 0) id2; |
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269 |
|
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270 |
|
16533 | 271 |
(* equality and inclusion *) |
272 |
||
16719 | 273 |
val eq_thy = eq_id o pairself (#id o identity_of o check_thy); |
16533 | 274 |
|
275 |
fun proper_subthy |
|
16719 | 276 |
(Theory ({id = (i, _), ...}, _, _, _), Theory ({ids, iids, ...}, _, _, _)) = |
277 |
is_some (Inttab.lookup (ids, i)) orelse is_some (Inttab.lookup (iids, i)); |
|
16533 | 278 |
|
279 |
fun subthy thys = eq_thy thys orelse proper_subthy thys; |
|
280 |
||
16594 | 281 |
fun joinable (thy1, thy2) = subthy (thy1, thy2) orelse subthy (thy2, thy1); |
282 |
||
16533 | 283 |
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284 |
(* theory references *) |
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285 |
|
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286 |
(*theory_ref provides a safe way to store dynamic references to a |
16533 | 287 |
theory in external data structures -- a plain theory value would |
288 |
become stale as the self reference moves on*) |
|
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289 |
|
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datatype theory_ref = TheoryRef of theory ref; |
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291 |
|
16719 | 292 |
val self_ref = TheoryRef o the_self o check_thy; |
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fun deref (TheoryRef (ref thy)) = thy; |
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294 |
|
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295 |
|
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(* trivial merge *) (*exception TERM*) |
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297 |
|
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298 |
fun merge (thy1, thy2) = |
16719 | 299 |
if eq_thy (thy1, thy2) then thy1 |
300 |
else if proper_subthy (thy2, thy1) then thy1 |
|
301 |
else if proper_subthy (thy1, thy2) then thy2 |
|
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else (check_merge thy1 thy2; |
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303 |
raise TERM (cat_lines ["Attempt to perform non-trivial merge of theories:", |
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str_of_thy thy1, str_of_thy thy2], [])); |
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305 |
|
16719 | 306 |
fun merge_refs (ref1, ref2) = |
307 |
if ref1 = ref2 then ref1 |
|
308 |
else self_ref (merge (deref ref1, deref ref2)); |
|
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309 |
|
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310 |
|
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311 |
|
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312 |
(** build theories **) |
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313 |
|
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314 |
(* primitives *) |
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315 |
|
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316 |
fun create_thy name self id ids iids data ancestry history = |
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317 |
let |
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318 |
val intermediate = #version history > 0; |
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319 |
val (ids', iids') = check_insert intermediate id (ids, iids); |
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val id' = (serial (), name); |
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|
321 |
val _ = check_insert intermediate id' (ids', iids'); |
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|
322 |
val identity' = make_identity self id' ids' iids'; |
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|
323 |
in vitalize (Theory (identity', data, ancestry, history)) end; |
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|
324 |
|
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|
325 |
fun change_thy name f (thy as Theory ({self, id, ids, iids}, data, ancestry, history)) = |
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|
326 |
let |
16719 | 327 |
val _ = check_thy thy; |
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|
328 |
val (self', data', ancestry') = |
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|
329 |
if is_draft thy then (self, data, ancestry) (*destructive change!*) |
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|
330 |
else if #version history > 0 |
16533 | 331 |
then (NONE, map_theory copy_data data, ancestry) |
332 |
else (NONE, map_theory extend_data data, make_ancestry [thy] (thy :: #ancestors ancestry)); |
|
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|
333 |
val data'' = f data'; |
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|
334 |
in create_thy name self' id ids iids data'' ancestry' history end; |
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|
335 |
|
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|
336 |
fun name_thy name = change_thy name I; |
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|
337 |
val modify_thy = change_thy draftN; |
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|
338 |
val extend_thy = modify_thy I; |
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|
339 |
|
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|
340 |
fun copy_thy (thy as Theory ({id, ids, iids, ...}, data, ancestry, history)) = |
16719 | 341 |
(check_thy thy; |
16533 | 342 |
create_thy draftN NONE id ids iids (map_theory copy_data data) ancestry history); |
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|
343 |
|
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|
344 |
val pre_pure_thy = create_thy draftN NONE (serial (), draftN) Inttab.empty Inttab.empty |
16533 | 345 |
(make_data Inttab.empty Inttab.empty) (make_ancestry [] []) (make_history ProtoPureN 0 []); |
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|
346 |
|
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|
347 |
|
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|
348 |
(* named theory nodes *) |
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|
349 |
|
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|
350 |
fun merge_thys pp (thy1, thy2) = |
16533 | 351 |
if exists_name CPureN thy1 <> exists_name CPureN thy2 then |
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|
352 |
error "Cannot merge Pure and CPure developments" |
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|
353 |
else |
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|
354 |
let |
16489
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|
355 |
val (ids, iids) = check_merge thy1 thy2; |
16533 | 356 |
val data1 = data_of thy1 and data2 = data_of thy2; |
357 |
val data = make_data |
|
358 |
(merge_data (pp thy1) (#theory data1, #theory data2)) |
|
359 |
(Inttab.merge (K true) (#proof data1, #proof data2)); |
|
16489
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|
360 |
val ancestry = make_ancestry [] []; |
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|
361 |
val history = make_history "" 0 []; |
16489
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changeset
|
362 |
in create_thy draftN NONE (serial (), draftN) ids iids data ancestry history end; |
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changeset
|
363 |
|
16533 | 364 |
fun maximal_thys thys = |
365 |
thys |> filter (fn thy => not (exists (fn thy' => proper_subthy (thy, thy')) thys)); |
|
366 |
||
16489
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|
367 |
fun begin_thy pp name imports = |
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|
368 |
if name = draftN then error ("Illegal theory name: " ^ quote draftN) |
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changeset
|
369 |
else |
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|
370 |
let |
16533 | 371 |
val parents = |
16719 | 372 |
maximal_thys (gen_distinct eq_thy (map check_thy imports)); |
16489
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|
373 |
val ancestors = gen_distinct eq_thy (parents @ List.concat (map ancestors_of parents)); |
f66ab8a4e98f
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changeset
|
374 |
val Theory ({id, ids, iids, ...}, data, _, _) = |
f66ab8a4e98f
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|
375 |
(case parents of |
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|
376 |
[] => error "No parent theories" |
16533 | 377 |
| [thy] => extend_thy thy |
378 |
| thy :: thys => Library.foldl (merge_thys pp) (thy, thys)); |
|
16489
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|
379 |
val ancestry = make_ancestry parents ancestors; |
f66ab8a4e98f
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parents:
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diff
changeset
|
380 |
val history = make_history name 0 []; |
f66ab8a4e98f
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changeset
|
381 |
in create_thy draftN NONE id ids iids data ancestry history end; |
16436
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changeset
|
382 |
|
7eb6b6cbd166
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changeset
|
383 |
|
16489
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changeset
|
384 |
(* undoable checkpoints *) |
16436
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changeset
|
385 |
|
16489
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changeset
|
386 |
fun checkpoint_thy thy = |
f66ab8a4e98f
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changeset
|
387 |
if not (is_draft thy) then thy |
16436
7eb6b6cbd166
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parents:
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diff
changeset
|
388 |
else |
7eb6b6cbd166
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parents:
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diff
changeset
|
389 |
let |
16489
f66ab8a4e98f
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parents:
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changeset
|
390 |
val {name, version, intermediates} = history_of thy; |
f66ab8a4e98f
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parents:
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diff
changeset
|
391 |
val thy' as Theory (identity', data', ancestry', _) = |
f66ab8a4e98f
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parents:
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diff
changeset
|
392 |
name_thy (name ^ ":" ^ string_of_int version) thy; |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
393 |
val history' = make_history name (version + 1) (thy' :: intermediates); |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
394 |
in vitalize (Theory (identity', data', ancestry', history')) end; |
f66ab8a4e98f
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wenzelm
parents:
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diff
changeset
|
395 |
|
f66ab8a4e98f
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parents:
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changeset
|
396 |
fun finish_thy thy = |
f66ab8a4e98f
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changeset
|
397 |
let |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
398 |
val {name, version, intermediates} = history_of thy; |
16719 | 399 |
val rs = map (the_self o check_thy) intermediates; |
16489
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wenzelm
parents:
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diff
changeset
|
400 |
val thy' as Theory ({self, id, ids, ...}, data', ancestry', _) = name_thy name thy; |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
401 |
val identity' = make_identity self id ids Inttab.empty; |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
402 |
val history' = make_history name 0 []; |
f66ab8a4e98f
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wenzelm
parents:
16436
diff
changeset
|
403 |
val thy'' = vitalize (Theory (identity', data', ancestry', history')); |
16533 | 404 |
val _ = List.app (fn r => r := thy'') rs; |
405 |
in thy'' end; |
|
16489
f66ab8a4e98f
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parents:
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changeset
|
406 |
|
f66ab8a4e98f
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wenzelm
parents:
16436
diff
changeset
|
407 |
|
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
408 |
(* theory data *) |
16436
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wenzelm
parents:
15801
diff
changeset
|
409 |
|
16533 | 410 |
fun dest_data name_of tab = |
411 |
map name_of (Inttab.keys tab) |
|
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
412 |
|> map (rpair ()) |> Symtab.make_multi |> Symtab.dest |
f66ab8a4e98f
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wenzelm
parents:
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diff
changeset
|
413 |
|> map (apsnd length) |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
414 |
|> map (fn (name, 1) => name | (name, n) => name ^ enclose "[" "]" (string_of_int n)); |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
415 |
|
16533 | 416 |
val theory_data_of = dest_data invoke_name o #theory o data_of; |
417 |
||
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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parents:
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changeset
|
418 |
structure TheoryData = |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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|
419 |
struct |
f66ab8a4e98f
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parents:
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changeset
|
420 |
|
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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changeset
|
421 |
val declare = declare_theory_data; |
f66ab8a4e98f
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wenzelm
parents:
16436
diff
changeset
|
422 |
|
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
423 |
fun get k dest thy = |
16533 | 424 |
(case Inttab.lookup (#theory (data_of thy), k) of |
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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parents:
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changeset
|
425 |
SOME x => (dest x handle Match => |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
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diff
changeset
|
426 |
error ("Failed to access theory data " ^ quote (invoke_name k))) |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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parents:
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diff
changeset
|
427 |
| NONE => error ("Uninitialized theory data " ^ quote (invoke_name k))); |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
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parents:
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diff
changeset
|
428 |
|
16533 | 429 |
fun put k mk x = modify_thy (map_theory (curry Inttab.update (k, mk x))); |
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
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changeset
|
430 |
fun init k = put k I (invoke_empty k); |
f66ab8a4e98f
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wenzelm
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changeset
|
431 |
|
f66ab8a4e98f
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wenzelm
parents:
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diff
changeset
|
432 |
end; |
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
433 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
434 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
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changeset
|
435 |
|
16533 | 436 |
(*** ML theory context ***) |
6185 | 437 |
|
438 |
local |
|
15531 | 439 |
val current_theory = ref (NONE: theory option); |
6185 | 440 |
in |
441 |
fun get_context () = ! current_theory; |
|
442 |
fun set_context opt_thy = current_theory := opt_thy; |
|
6238 | 443 |
fun setmp opt_thy f x = Library.setmp current_theory opt_thy f x; |
6185 | 444 |
end; |
445 |
||
446 |
fun the_context () = |
|
447 |
(case get_context () of |
|
15531 | 448 |
SOME thy => thy |
6185 | 449 |
| _ => error "Unknown theory context"); |
450 |
||
15531 | 451 |
fun context thy = set_context (SOME thy); |
452 |
fun reset_context () = set_context NONE; |
|
6185 | 453 |
|
6310 | 454 |
fun pass opt_thy f x = |
6261 | 455 |
setmp opt_thy (fn x => let val y = f x in (y, get_context ()) end) x; |
456 |
||
6310 | 457 |
fun pass_theory thy f x = |
15531 | 458 |
(case pass (SOME thy) f x of |
459 |
(y, SOME thy') => (y, thy') |
|
460 |
| (_, NONE) => error "Lost theory context in ML"); |
|
6261 | 461 |
|
6238 | 462 |
fun save f x = setmp (get_context ()) f x; |
463 |
||
6185 | 464 |
|
465 |
(* map context *) |
|
466 |
||
467 |
nonfix >>; |
|
15531 | 468 |
fun >> f = set_context (SOME (f (the_context ()))); |
6185 | 469 |
|
470 |
||
8348
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
471 |
(* use ML text *) |
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
472 |
|
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
473 |
val ml_output = (writeln, error_msg); |
14976 | 474 |
|
475 |
fun use_output verb txt = use_text ml_output verb (Symbol.escape txt); |
|
10914 | 476 |
|
10924
92305ae9f460
use_output: proper handling of non-ASCII symbols;
wenzelm
parents:
10914
diff
changeset
|
477 |
fun use_mltext txt verb opt_thy = setmp opt_thy (fn () => use_output verb txt) (); |
92305ae9f460
use_output: proper handling of non-ASCII symbols;
wenzelm
parents:
10914
diff
changeset
|
478 |
fun use_mltext_theory txt verb thy = #2 (pass_theory thy (use_output verb) txt); |
8348
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
479 |
|
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
480 |
fun use_context txt = use_mltext_theory ("Context.>> (" ^ txt ^ ");") false; |
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
481 |
|
9586 | 482 |
fun use_let bind body txt = |
483 |
use_context ("let " ^ bind ^ " = " ^ txt ^ " in\n" ^ body ^ " end"); |
|
8348
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
484 |
|
15801 | 485 |
|
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
486 |
(* delayed theory setup *) |
15801 | 487 |
|
488 |
local |
|
489 |
val setup_fns = ref ([]: (theory -> theory) list); |
|
490 |
in |
|
491 |
fun add_setup fns = setup_fns := ! setup_fns @ fns; |
|
492 |
fun setup () = let val fns = ! setup_fns in setup_fns := []; fns end; |
|
493 |
end; |
|
8348
ebbbfdb35c84
added use_mltext, use_mltext_theory, use_let, use_setup (from isar_thy.ML);
wenzelm
parents:
6310
diff
changeset
|
494 |
|
16533 | 495 |
|
496 |
||
497 |
(*** proof context ***) |
|
498 |
||
499 |
(* datatype proof *) |
|
500 |
||
501 |
datatype proof = Proof of theory * Object.T Inttab.table; |
|
502 |
||
503 |
fun theory_of_proof (Proof (thy, _)) = thy; |
|
504 |
fun data_of_proof (Proof (_, data)) = data; |
|
505 |
fun map_prf f (Proof (thy, data)) = Proof (thy, f data); |
|
506 |
||
507 |
||
508 |
(* proof data kinds *) |
|
509 |
||
510 |
local |
|
511 |
||
512 |
type kind = |
|
513 |
{name: string, |
|
514 |
init: theory -> Object.T}; |
|
515 |
||
516 |
val kinds = ref (Inttab.empty: kind Inttab.table); |
|
517 |
||
518 |
fun invoke meth_name meth_fn k = |
|
519 |
(case Inttab.lookup (! kinds, k) of |
|
520 |
SOME kind => meth_fn kind |> transform_failure (fn exn => |
|
521 |
DATA_FAIL (exn, "Proof data method " ^ #name kind ^ "." ^ meth_name ^ " failed")) |
|
522 |
| NONE => sys_error ("Invalid proof data identifier " ^ string_of_int k)); |
|
523 |
||
524 |
fun invoke_name k = invoke "name" (K o #name) k (); |
|
525 |
val invoke_init = invoke "init" #init; |
|
526 |
||
527 |
in |
|
528 |
||
529 |
val proof_data_of = dest_data invoke_name o #proof o data_of; |
|
530 |
||
531 |
fun init_proof thy = |
|
532 |
Proof (thy, Inttab.map' (fn k => fn _ => invoke_init k thy) (#proof (data_of thy))); |
|
533 |
||
534 |
structure ProofData = |
|
535 |
struct |
|
536 |
||
537 |
fun declare name init = |
|
538 |
let |
|
539 |
val k = serial (); |
|
540 |
val kind = {name = name, init = init}; |
|
541 |
val _ = conditional (Inttab.exists (equal name o #name o #2) (! kinds)) (fn () => |
|
542 |
warning ("Duplicate declaration of proof data " ^ quote name)); |
|
543 |
val _ = kinds := Inttab.update ((k, kind), ! kinds); |
|
544 |
in k end; |
|
545 |
||
546 |
fun init k = modify_thy (map_proof (curry Inttab.update (k, ()))); |
|
547 |
||
548 |
fun get k dest prf = |
|
549 |
(case Inttab.lookup (data_of_proof prf, k) of |
|
550 |
SOME x => (dest x handle Match => |
|
551 |
error ("Failed to access proof data " ^ quote (invoke_name k))) |
|
552 |
| NONE => error ("Uninitialized proof data " ^ quote (invoke_name k))); |
|
553 |
||
554 |
fun put k mk x = map_prf (curry Inttab.update (k, mk x)); |
|
555 |
||
556 |
end; |
|
557 |
||
558 |
end; |
|
559 |
||
560 |
||
561 |
(*** generic context ***) |
|
562 |
||
563 |
datatype context = Theory of theory | Proof of proof; |
|
564 |
||
565 |
fun theory_of (Theory thy) = thy |
|
566 |
| theory_of (Proof prf) = theory_of_proof prf; |
|
567 |
||
568 |
fun proof_of (Theory thy) = init_proof thy |
|
569 |
| proof_of (Proof prf) = prf; |
|
570 |
||
6185 | 571 |
end; |
572 |
||
573 |
structure BasicContext: BASIC_CONTEXT = Context; |
|
574 |
open BasicContext; |
|
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
575 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
576 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
577 |
|
16533 | 578 |
(*** type-safe interfaces for data declarations ***) |
579 |
||
580 |
(** theory data **) |
|
16436
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added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
581 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
582 |
signature THEORY_DATA_ARGS = |
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added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
583 |
sig |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
584 |
val name: string |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
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parents:
15801
diff
changeset
|
585 |
type T |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
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parents:
15801
diff
changeset
|
586 |
val empty: T |
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added type theory: generic theory contexts with unique identity,
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parents:
15801
diff
changeset
|
587 |
val copy: T -> T |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
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parents:
15801
diff
changeset
|
588 |
val extend: T -> T |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
589 |
val merge: Pretty.pp -> T * T -> T |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
590 |
val print: theory -> T -> unit |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
591 |
end; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
592 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
593 |
signature THEORY_DATA = |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
594 |
sig |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
595 |
type T |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
596 |
val init: theory -> theory |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
597 |
val print: theory -> unit |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
598 |
val get: theory -> T |
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
599 |
val get_sg: theory -> T (*obsolete*) |
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
600 |
val put: T -> theory -> theory |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
601 |
val map: (T -> T) -> theory -> theory |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
602 |
end; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
603 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
604 |
functor TheoryDataFun(Data: THEORY_DATA_ARGS): THEORY_DATA = |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
605 |
struct |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
606 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
607 |
structure TheoryData = Context.TheoryData; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
608 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
609 |
type T = Data.T; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
610 |
exception Data of T; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
611 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
612 |
val kind = TheoryData.declare Data.name |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
613 |
(Data Data.empty) |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
614 |
(fn Data x => Data (Data.copy x)) |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
615 |
(fn Data x => Data (Data.extend x)) |
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
616 |
(fn pp => fn (Data x1, Data x2) => Data (Data.merge pp (x1, x2))); |
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
617 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
618 |
val init = TheoryData.init kind; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
619 |
val get = TheoryData.get kind (fn Data x => x); |
16489
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
620 |
val get_sg = get; |
f66ab8a4e98f
improved treatment of intermediate checkpoints: actual copy
wenzelm
parents:
16436
diff
changeset
|
621 |
fun print thy = Data.print thy (get thy); |
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
622 |
val put = TheoryData.put kind Data; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
623 |
fun map f thy = put (f (get thy)) thy; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
624 |
|
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
625 |
end; |
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
626 |
|
16533 | 627 |
|
628 |
||
629 |
(** proof data **) |
|
630 |
||
631 |
signature PROOF_DATA_ARGS = |
|
632 |
sig |
|
633 |
val name: string |
|
634 |
type T |
|
635 |
val init: theory -> T |
|
636 |
val print: Context.proof -> T -> unit |
|
637 |
end; |
|
638 |
||
639 |
signature PROOF_DATA = |
|
640 |
sig |
|
641 |
type T |
|
642 |
val init: theory -> theory |
|
643 |
val print: Context.proof -> unit |
|
644 |
val get: Context.proof -> T |
|
645 |
val put: T -> Context.proof -> Context.proof |
|
646 |
val map: (T -> T) -> Context.proof -> Context.proof |
|
647 |
end; |
|
648 |
||
649 |
functor ProofDataFun(Data: PROOF_DATA_ARGS): PROOF_DATA = |
|
650 |
struct |
|
651 |
||
652 |
structure ProofData = Context.ProofData; |
|
653 |
||
654 |
type T = Data.T; |
|
655 |
exception Data of T; |
|
656 |
||
657 |
val kind = ProofData.declare Data.name (Data o Data.init); |
|
658 |
||
659 |
val init = ProofData.init kind; |
|
660 |
val get = ProofData.get kind (fn Data x => x); |
|
661 |
fun print prf = Data.print prf (get prf); |
|
662 |
val put = ProofData.put kind Data; |
|
663 |
fun map f prf = put (f (get prf)) prf; |
|
664 |
||
665 |
end; |
|
666 |
||
667 |
(*hide private interface*) |
|
16436
7eb6b6cbd166
added type theory: generic theory contexts with unique identity,
wenzelm
parents:
15801
diff
changeset
|
668 |
structure Context: CONTEXT = Context; |