author | wenzelm |
Sat, 02 Apr 2016 23:29:05 +0200 | |
changeset 62826 | eb94e570c1a4 |
parent 61432 | 1502f2410d8b |
child 62969 | 9f394a16c557 |
permissions | -rw-r--r-- |
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(* Title: HOL/Tools/Sledgehammer/sledgehammer_util.ML |
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Author: Jasmin Blanchette, TU Muenchen |
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General-purpose functions used by the Sledgehammer modules. |
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*) |
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signature SLEDGEHAMMER_UTIL = |
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sig |
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val sledgehammerN : string |
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val log2 : real -> real |
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val app_hd : ('a -> 'a) -> 'a list -> 'a list |
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val plural_s : int -> string |
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val serial_commas : string -> string list -> string list |
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val simplify_spaces : string -> string |
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val with_cleanup : ('a -> unit) -> ('a -> 'b) -> 'a -> 'b |
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val time_mult : real -> Time.time -> Time.time |
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val parse_bool_option : bool -> string -> string -> bool option |
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val parse_time : string -> string -> Time.time |
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val subgoal_count : Proof.state -> int |
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val thms_in_proof : int -> (string Symtab.table * string Symtab.table) option -> thm -> |
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string list option |
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val thms_of_name : Proof.context -> string -> thm list |
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val one_day : Time.time |
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val one_year : Time.time |
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val with_vanilla_print_mode : ('a -> 'b) -> 'a -> 'b |
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val hackish_string_of_term : Proof.context -> term -> string |
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val spying : bool -> (unit -> Proof.state * int * string * string) -> unit |
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end; |
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structure Sledgehammer_Util : SLEDGEHAMMER_UTIL = |
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struct |
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open ATP_Util |
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val sledgehammerN = "sledgehammer" |
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val log10_2 = Math.log10 2.0 |
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fun log2 n = Math.log10 n / log10_2 |
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fun app_hd f (x :: xs) = f x :: xs |
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fun plural_s n = if n = 1 then "" else "s" |
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val serial_commas = Try.serial_commas |
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val simplify_spaces = strip_spaces false (K true) |
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fun with_cleanup clean_up f x = |
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Exn.capture f x |
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|> tap (fn _ => clean_up x) |
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|> Exn.release |
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fun time_mult k t = Time.fromMilliseconds (Real.ceil (k * Real.fromInt (Time.toMilliseconds t))) |
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fun parse_bool_option option name s = |
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(case s of |
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"smart" => if option then NONE else raise Option.Option |
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| "false" => SOME false |
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| "true" => SOME true |
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| "" => SOME true |
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| _ => raise Option.Option) |
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handle Option.Option => |
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let val ss = map quote ((option ? cons "smart") ["true", "false"]) in |
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error ("Parameter " ^ quote name ^ " must be assigned " ^ |
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space_implode " " (serial_commas "or" ss) ^ ".") |
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end |
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val has_junk = |
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exists (fn s => not (Symbol.is_digit s) andalso s <> ".") o raw_explode (* FIXME Symbol.explode (?) *) |
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fun parse_time name s = |
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let val secs = if has_junk s then NONE else Real.fromString s in |
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if is_none secs orelse the secs < 0.0 then |
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error ("Parameter " ^ quote name ^ " must be assigned a nonnegative number of seconds \ |
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\(e.g., \"60\", \"0.5\") or \"none\".") |
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else |
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seconds (the secs) |
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end |
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val subgoal_count = Try.subgoal_count |
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exception TOO_MANY of unit |
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(* FIXME: Similar yet different code in "mirabelle.ML". The code here has a few fixes that seem to |
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be missing over there; or maybe the two code portions are not doing the same? *) |
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fun fold_body_thm max_thms outer_name (map_plain_name, map_inclass_name) body = |
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let |
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fun app_thm map_name (_, (name, _, body)) (accum as (num_thms, names)) = |
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let |
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val (anonymous, enter_class) = |
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(* The "name = outer_name" case caters for the uncommon case where the proved theorem |
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occurs in its own proof (e.g., "Transitive_Closure.trancl_into_trancl"). *) |
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if name = "" orelse name = outer_name then (true, false) |
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else if map_inclass_name name = SOME outer_name then (true, true) |
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else (false, false) |
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in |
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if anonymous then |
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(case Future.peek body of |
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SOME (Exn.Res the_body) => |
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app_body (if enter_class then map_inclass_name else map_name) the_body accum |
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| NONE => accum) |
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else |
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(case map_name name of |
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SOME name' => |
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if member (op =) names name' then accum |
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else if num_thms = max_thms then raise TOO_MANY () |
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else (num_thms + 1, name' :: names) |
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| NONE => accum) |
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end |
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and app_body map_name (PBody {thms, ...}) = fold (app_thm map_name) thms |
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in |
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snd (app_body map_plain_name body (0, [])) |
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end |
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|
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fun thms_in_proof max_thms name_tabs th = |
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(case try Thm.proof_body_of th of |
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NONE => NONE |
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| SOME body => |
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let val map_names = (case name_tabs of SOME p => apply2 Symtab.lookup p | NONE => `I SOME) in |
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SOME (fold_body_thm max_thms (Thm.get_name_hint th) map_names (Proofterm.strip_thm body)) |
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handle TOO_MANY () => NONE |
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end) |
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fun thms_of_name ctxt name = |
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let |
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val get = maps (Proof_Context.get_fact ctxt o fst) |
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val keywords = Thy_Header.get_keywords' ctxt |
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in |
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Source.of_string name |
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|> Symbol.source |
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|> Token.source keywords Position.start |
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|> Token.source_proper |
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|> Source.source Token.stopper (Parse.xthms1 >> get) |
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|> Source.exhaust |
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end |
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val one_day = seconds (24.0 * 60.0 * 60.0) |
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val one_year = seconds (365.0 * 24.0 * 60.0 * 60.0) |
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||
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fun with_vanilla_print_mode f x = |
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Print_Mode.setmp (filter (curry (op =) Symbol.xsymbolsN) (print_mode_value ())) f x |
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fun hackish_string_of_term ctxt = |
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(* FIXME: map_aterms (fn Free (s, T) => Free (if Name.is_internal s then "_" else s, T) | t => t) |
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#> *) with_vanilla_print_mode (Syntax.string_of_term ctxt) |
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#> YXML.content_of |
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#> simplify_spaces |
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generate backquotes without markup, since this confuses preplay; bump up spying version identifier;
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val spying_version = "d" |
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|
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fun spying false _ = () |
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| spying true f = |
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let |
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val (state, i, tool, message) = f () |
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val ctxt = Proof.context_of state |
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val goal = Logic.get_goal (Thm.prop_of (#goal (Proof.goal state))) i |
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val hash = String.substring (SHA1.rep (SHA1.digest (hackish_string_of_term ctxt goal)), 0, 12) |
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in |
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File.append (Path.explode "$ISABELLE_HOME_USER/spy_sledgehammer") |
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(spying_version ^ " " ^ timestamp () ^ ": " ^ hash ^ ": " ^ tool ^ ": " ^ message ^ "\n") |
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end |
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end; |