(* Title: HOL/Tools/Quickcheck/exhaustive_generators.ML
Author: Lukas Bulwahn, TU Muenchen
Exhaustive generators for various types.
*)
signature EXHAUSTIVE_GENERATORS =
sig
val compile_generator_expr: Proof.context -> (term * term list) list -> bool -> int list ->
(bool * term list) option * Quickcheck.report option
val compile_generator_exprs: Proof.context -> term list -> (int -> term list option) list
val compile_validator_exprs: Proof.context -> term list -> (int -> bool) list
val put_counterexample:
(unit -> Code_Numeral.natural -> bool -> Code_Numeral.natural -> (bool * term list) option) ->
Proof.context -> Proof.context
val put_counterexample_batch: (unit -> (Code_Numeral.natural -> term list option) list) ->
Proof.context -> Proof.context
val put_validator_batch: (unit -> (Code_Numeral.natural -> bool) list) ->
Proof.context -> Proof.context
exception Counterexample of term list
val smart_quantifier : bool Config.T
val optimise_equality : bool Config.T
val quickcheck_pretty : bool Config.T
val setup_exhaustive_datatype_interpretation : theory -> theory
val setup_bounded_forall_datatype_interpretation : theory -> theory
val instantiate_full_exhaustive_datatype : Old_Datatype_Aux.config -> Old_Datatype_Aux.descr ->
(string * sort) list -> string list -> string -> string list * string list ->
typ list * typ list -> theory -> theory
val instantiate_exhaustive_datatype : Old_Datatype_Aux.config -> Old_Datatype_Aux.descr ->
(string * sort) list -> string list -> string -> string list * string list ->
typ list * typ list -> theory -> theory
end
structure Exhaustive_Generators : EXHAUSTIVE_GENERATORS =
struct
(* basics *)
(** dynamic options **)
val smart_quantifier = Attrib.setup_config_bool @{binding quickcheck_smart_quantifier} (K true)
val optimise_equality = Attrib.setup_config_bool @{binding quickcheck_optimise_equality} (K true)
val fast = Attrib.setup_config_bool @{binding quickcheck_fast} (K false)
val bounded_forall = Attrib.setup_config_bool @{binding quickcheck_bounded_forall} (K false)
val full_support = Attrib.setup_config_bool @{binding quickcheck_full_support} (K true)
val quickcheck_pretty = Attrib.setup_config_bool @{binding quickcheck_pretty} (K true)
(** abstract syntax **)
fun termifyT T = HOLogic.mk_prodT (T, @{typ "unit \<Rightarrow> Code_Evaluation.term"})
val size = @{term "i :: natural"}
val size_pred = @{term "(i :: natural) - 1"}
val size_ge_zero = @{term "(i :: natural) > 0"}
fun mk_none_continuation (x, y) =
let val (T as Type (@{type_name option}, _)) = fastype_of x
in Const (@{const_name Quickcheck_Exhaustive.orelse}, T --> T --> T) $ x $ y end
fun mk_if (b, t, e) =
let val T = fastype_of t
in Const (@{const_name If}, @{typ bool} --> T --> T --> T) $ b $ t $ e end
(* handling inductive datatypes *)
(** constructing generator instances **)
exception FUNCTION_TYPE
exception Counterexample of term list
val resultT = @{typ "(bool * term list) option"}
val exhaustiveN = "exhaustive"
val full_exhaustiveN = "full_exhaustive"
val bounded_forallN = "bounded_forall"
fun fast_exhaustiveT T = (T --> @{typ unit}) --> @{typ natural} --> @{typ unit}
fun exhaustiveT T = (T --> resultT) --> @{typ natural} --> resultT
fun bounded_forallT T = (T --> @{typ bool}) --> @{typ natural} --> @{typ bool}
fun full_exhaustiveT T = (termifyT T --> resultT) --> @{typ natural} --> resultT
fun check_allT T = (termifyT T --> resultT) --> resultT
fun mk_equation_terms generics (descr, vs, Ts) =
let
val (mk_call, mk_aux_call, mk_consexpr, mk_rhs, test_function, exhaustives) = generics
val rhss =
Old_Datatype_Aux.interpret_construction descr vs
{ atyp = mk_call, dtyp = mk_aux_call }
|> (map o apfst) Type
|> map (fn (T, cs) => map (mk_consexpr T) cs)
|> map mk_rhs
val lhss = map2 (fn t => fn T => t $ test_function T $ size) exhaustives Ts
in map (HOLogic.mk_Trueprop o HOLogic.mk_eq) (lhss ~~ rhss) end
fun gen_mk_call c T = (T, fn t => c T $ absdummy T t $ size_pred)
fun gen_mk_aux_call functerms fTs (k, _) (tyco, Ts) =
let
val T = Type (tyco, Ts)
val _ = if not (null fTs) then raise FUNCTION_TYPE else ()
in (T, fn t => nth functerms k $ absdummy T t $ size_pred) end
fun gen_mk_consexpr test_function simpleT (c, xs) =
let
val (Ts, fns) = split_list xs
val constr = Const (c, Ts ---> simpleT)
val bounds = map Bound (((length xs) - 1) downto 0)
val start_term = test_function simpleT $ list_comb (constr, bounds)
in fold_rev (fn f => fn t => f t) fns start_term end
fun mk_equations functerms =
let
fun test_function T = Free ("f", T --> resultT)
val mk_call = gen_mk_call (fn T =>
Const (@{const_name Quickcheck_Exhaustive.exhaustive_class.exhaustive}, exhaustiveT T))
val mk_aux_call = gen_mk_aux_call functerms
val mk_consexpr = gen_mk_consexpr test_function
fun mk_rhs exprs =
mk_if (size_ge_zero, foldr1 mk_none_continuation exprs, Const (@{const_name None}, resultT))
in mk_equation_terms (mk_call, mk_aux_call, mk_consexpr, mk_rhs, test_function, functerms) end
fun mk_bounded_forall_equations functerms =
let
fun test_function T = Free ("P", T --> @{typ bool})
val mk_call = gen_mk_call (fn T =>
Const (@{const_name Quickcheck_Exhaustive.bounded_forall_class.bounded_forall},
bounded_forallT T))
val mk_aux_call = gen_mk_aux_call functerms
val mk_consexpr = gen_mk_consexpr test_function
fun mk_rhs exprs = mk_if (size_ge_zero, foldr1 HOLogic.mk_conj exprs, @{term True})
in mk_equation_terms (mk_call, mk_aux_call, mk_consexpr, mk_rhs, test_function, functerms) end
fun mk_full_equations functerms =
let
fun test_function T = Free ("f", termifyT T --> resultT)
fun case_prod_const T =
HOLogic.case_prod_const (T, @{typ "unit \<Rightarrow> Code_Evaluation.term"}, resultT)
fun mk_call T =
let
val full_exhaustive =
Const (@{const_name Quickcheck_Exhaustive.full_exhaustive_class.full_exhaustive},
full_exhaustiveT T)
in
(T,
fn t =>
full_exhaustive $
(case_prod_const T $ absdummy T (absdummy @{typ "unit \<Rightarrow> Code_Evaluation.term"} t)) $
size_pred)
end
fun mk_aux_call fTs (k, _) (tyco, Ts) =
let
val T = Type (tyco, Ts)
val _ = if not (null fTs) then raise FUNCTION_TYPE else ()
in
(T,
fn t =>
nth functerms k $
(case_prod_const T $ absdummy T (absdummy @{typ "unit \<Rightarrow> Code_Evaluation.term"} t)) $
size_pred)
end
fun mk_consexpr simpleT (c, xs) =
let
val (Ts, fns) = split_list xs
val constr = Const (c, Ts ---> simpleT)
val bounds = map (fn x => Bound (2 * x + 1)) (((length xs) - 1) downto 0)
val Eval_App =
Const (@{const_name Code_Evaluation.App},
HOLogic.termT --> HOLogic.termT --> HOLogic.termT)
val Eval_Const =
Const (@{const_name Code_Evaluation.Const},
HOLogic.literalT --> @{typ typerep} --> HOLogic.termT)
val term =
fold (fn u => fn t => Eval_App $ t $ (u $ @{term "()"}))
bounds (Eval_Const $ HOLogic.mk_literal c $ HOLogic.mk_typerep (Ts ---> simpleT))
val start_term =
test_function simpleT $
(HOLogic.pair_const simpleT @{typ "unit \<Rightarrow> Code_Evaluation.term"} $
(list_comb (constr, bounds)) $ absdummy @{typ unit} term)
in fold_rev (fn f => fn t => f t) fns start_term end
fun mk_rhs exprs =
mk_if (size_ge_zero, foldr1 mk_none_continuation exprs, Const (@{const_name None}, resultT))
in mk_equation_terms (mk_call, mk_aux_call, mk_consexpr, mk_rhs, test_function, functerms) end
(** instantiating generator classes **)
fun contains_recursive_type_under_function_types xs =
exists (fn (_, (_, _, cs)) => cs |> exists (snd #> exists (fn dT =>
(case Old_Datatype_Aux.strip_dtyp dT of (_ :: _, Old_Datatype_Aux.DtRec _) => true | _ => false)))) xs
fun instantiate_datatype (name, constprfx, sort, mk_equations, mk_T, argnames)
config descr vs tycos prfx (names, auxnames) (Ts, Us) thy =
if not (contains_recursive_type_under_function_types descr) then
let
val _ = Old_Datatype_Aux.message config ("Creating " ^ name ^ "...")
val fullnames = map (prefix (constprfx ^ "_")) (names @ auxnames)
in
thy
|> Class.instantiation (tycos, vs, sort)
|> Quickcheck_Common.define_functions
(fn functerms => mk_equations functerms (descr, vs, Ts @ Us), NONE)
prfx argnames fullnames (map mk_T (Ts @ Us))
|> Class.prove_instantiation_exit (fn ctxt => Class.intro_classes_tac ctxt [])
end
else
(Old_Datatype_Aux.message config
("Creation of " ^ name ^ " failed because the datatype is recursive under a function type");
thy)
val instantiate_bounded_forall_datatype =
instantiate_datatype
("bounded universal quantifiers", bounded_forallN, @{sort bounded_forall},
mk_bounded_forall_equations, bounded_forallT, ["P", "i"])
val instantiate_exhaustive_datatype =
instantiate_datatype
("exhaustive generators", exhaustiveN, @{sort exhaustive},
mk_equations, exhaustiveT, ["f", "i"])
val instantiate_full_exhaustive_datatype =
instantiate_datatype
("full exhaustive generators", full_exhaustiveN, @{sort full_exhaustive},
mk_full_equations, full_exhaustiveT, ["f", "i"])
(* building and compiling generator expressions *)
fun mk_let_expr (x, t, e) genuine =
let val (T1, T2) = (fastype_of x, fastype_of (e genuine))
in Const (@{const_name Let}, T1 --> (T1 --> T2) --> T2) $ t $ lambda x (e genuine) end
fun mk_safe_let_expr genuine_only none safe (x, t, e) genuine =
let
val (T1, T2) = (fastype_of x, fastype_of (e genuine))
val if_t = Const (@{const_name If}, @{typ bool} --> T2 --> T2 --> T2)
in
Const (@{const_name Quickcheck_Random.catch_match}, T2 --> T2 --> T2) $
(Const (@{const_name Let}, T1 --> (T1 --> T2) --> T2) $ t $ lambda x (e genuine)) $
(if_t $ genuine_only $ none $ safe false)
end
fun mk_test_term lookup mk_closure mk_if mk_let none_t return ctxt =
let
val cnstrs =
flat (maps
(map (fn (_, (Tname, _, cs)) => map (apsnd (rpair Tname o length)) cs) o #descr o snd)
(Symtab.dest
(BNF_LFP_Compat.get_all (Proof_Context.theory_of ctxt) Quickcheck_Common.compat_prefs)))
fun is_constrt (Const (s, T), ts) =
(case (AList.lookup (op =) cnstrs s, body_type T) of
(SOME (i, Tname), Type (Tname', _)) => length ts = i andalso Tname = Tname'
| _ => false)
| is_constrt _ = false
fun mk_naive_test_term t =
fold_rev mk_closure (map lookup (Term.add_free_names t [])) (mk_if (t, none_t, return) true)
fun mk_test (vars, check) = fold_rev mk_closure (map lookup vars) check
fun mk_smart_test_term' concl bound_vars assms genuine =
let
fun vars_of t = subtract (op =) bound_vars (Term.add_free_names t [])
fun mk_equality_term (lhs, f as Free (x, _)) c (assm, assms) =
if member (op =) (Term.add_free_names lhs bound_vars) x then
c (assm, assms)
else
let
val rec_call = mk_smart_test_term' concl (union (op =) (vars_of assm) bound_vars) assms
fun safe genuine =
the_default I (Option.map mk_closure (try lookup x)) (rec_call genuine)
in
mk_test (remove (op =) x (vars_of assm),
mk_let safe f (try lookup x) lhs
(mk_smart_test_term' concl (union (op =) (vars_of assm) bound_vars) assms) genuine)
end
| mk_equality_term (lhs, t) c (assm, assms) =
if is_constrt (strip_comb t) then
let
val (constr, args) = strip_comb t
val T = fastype_of t
val vars =
map Free
(Variable.variant_frees ctxt (concl :: assms)
(map (fn t => ("x", fastype_of t)) args))
val varnames = map (fst o dest_Free) vars
val dummy_var =
Free (singleton
(Variable.variant_frees ctxt (concl :: assms @ vars)) ("dummy", T))
val new_assms = map HOLogic.mk_eq (vars ~~ args)
val bound_vars' = union (op =) (vars_of lhs) (union (op =) varnames bound_vars)
val cont_t = mk_smart_test_term' concl bound_vars' (new_assms @ assms) genuine
in
mk_test (vars_of lhs,
Case_Translation.make_case ctxt Case_Translation.Quiet Name.context lhs
[(list_comb (constr, vars), cont_t), (dummy_var, none_t)])
end
else c (assm, assms)
fun default (assm, assms) =
mk_test
(vars_of assm,
mk_if (HOLogic.mk_not assm, none_t,
mk_smart_test_term' concl (union (op =) (vars_of assm) bound_vars) assms) genuine)
in
(case assms of
[] => mk_test (vars_of concl, mk_if (concl, none_t, return) genuine)
| assm :: assms =>
if Config.get ctxt optimise_equality then
(case try HOLogic.dest_eq assm of
SOME (lhs, rhs) =>
mk_equality_term (lhs, rhs) (mk_equality_term (rhs, lhs) default) (assm, assms)
| NONE => default (assm, assms))
else default (assm, assms))
end
val mk_smart_test_term =
Quickcheck_Common.strip_imp #> (fn (assms, concl) => mk_smart_test_term' concl [] assms true)
in if Config.get ctxt smart_quantifier then mk_smart_test_term else mk_naive_test_term end
fun mk_fast_generator_expr ctxt (t, eval_terms) =
let
val ctxt' = Variable.auto_fixes t ctxt
val names = Term.add_free_names t []
val frees = map Free (Term.add_frees t [])
fun lookup v = the (AList.lookup (op =) (names ~~ frees) v)
val ([depth_name], _) = Variable.variant_fixes ["depth"] ctxt'
val depth = Free (depth_name, @{typ natural})
fun return _ =
@{term "throw_Counterexample :: term list \<Rightarrow> unit"} $
(HOLogic.mk_list @{typ term}
(map (fn t => HOLogic.mk_term_of (fastype_of t) t) (frees @ eval_terms)))
fun mk_exhaustive_closure (free as Free (_, T)) t =
Const (@{const_name Quickcheck_Exhaustive.fast_exhaustive_class.fast_exhaustive},
fast_exhaustiveT T) $ lambda free t $ depth
val none_t = @{term "()"}
fun mk_safe_if (cond, then_t, else_t) genuine = mk_if (cond, then_t, else_t genuine)
fun mk_let _ def v_opt t e = mk_let_expr (the_default def v_opt, t, e)
val mk_test_term =
mk_test_term lookup mk_exhaustive_closure mk_safe_if mk_let none_t return ctxt
in lambda depth (@{term "catch_Counterexample :: unit => term list option"} $ mk_test_term t) end
fun mk_unknown_term T =
HOLogic.reflect_term (Const (@{const_name Quickcheck_Exhaustive.unknown}, T))
fun mk_safe_term t =
@{term "Quickcheck_Random.catch_match :: term \<Rightarrow> term \<Rightarrow> term"} $
(HOLogic.mk_term_of (fastype_of t) t) $ mk_unknown_term (fastype_of t)
fun mk_return t genuine =
@{term "Some :: bool \<times> term list \<Rightarrow> (bool \<times> term list) option"} $
(HOLogic.pair_const @{typ bool} @{typ "term list"} $
Quickcheck_Common.reflect_bool genuine $ t)
fun mk_generator_expr ctxt (t, eval_terms) =
let
val ctxt' = Variable.auto_fixes t ctxt
val names = Term.add_free_names t []
val frees = map Free (Term.add_frees t [])
fun lookup v = the (AList.lookup (op =) (names ~~ frees) v)
val ([depth_name, genuine_only_name], _) =
Variable.variant_fixes ["depth", "genuine_only"] ctxt'
val depth = Free (depth_name, @{typ natural})
val genuine_only = Free (genuine_only_name, @{typ bool})
val return =
mk_return (HOLogic.mk_list @{typ term}
(map (fn t => HOLogic.mk_term_of (fastype_of t) t) frees @ map mk_safe_term eval_terms))
fun mk_exhaustive_closure (free as Free (_, T)) t =
Const (@{const_name Quickcheck_Exhaustive.exhaustive_class.exhaustive}, exhaustiveT T) $
lambda free t $ depth
val none_t = Const (@{const_name None}, resultT)
val mk_if = Quickcheck_Common.mk_safe_if genuine_only none_t
fun mk_let safe def v_opt t e =
mk_safe_let_expr genuine_only none_t safe (the_default def v_opt, t, e)
val mk_test_term = mk_test_term lookup mk_exhaustive_closure mk_if mk_let none_t return ctxt
in lambda genuine_only (lambda depth (mk_test_term t)) end
fun mk_full_generator_expr ctxt (t, eval_terms) =
let
val thy = Proof_Context.theory_of ctxt
val ctxt' = Variable.auto_fixes t ctxt
val names = Term.add_free_names t []
val frees = map Free (Term.add_frees t [])
val ([depth_name, genuine_only_name], ctxt'') =
Variable.variant_fixes ["depth", "genuine_only"] ctxt'
val (term_names, _) = Variable.variant_fixes (map (prefix "t_") names) ctxt''
val depth = Free (depth_name, @{typ natural})
val genuine_only = Free (genuine_only_name, @{typ bool})
val term_vars = map (fn n => Free (n, @{typ "unit \<Rightarrow> term"})) term_names
fun lookup v = the (AList.lookup (op =) (names ~~ (frees ~~ term_vars)) v)
val return =
mk_return
(HOLogic.mk_list @{typ term}
(map (fn v => v $ @{term "()"}) term_vars @ map mk_safe_term eval_terms))
fun mk_exhaustive_closure (free as Free (_, T), term_var) t =
if Sign.of_sort thy (T, @{sort check_all}) then
Const (@{const_name Quickcheck_Exhaustive.check_all_class.check_all}, check_allT T) $
(HOLogic.case_prod_const (T, @{typ "unit \<Rightarrow> term"}, resultT) $
lambda free (lambda term_var t))
else
Const (@{const_name Quickcheck_Exhaustive.full_exhaustive_class.full_exhaustive},
full_exhaustiveT T) $
(HOLogic.case_prod_const (T, @{typ "unit \<Rightarrow> term"}, resultT) $
lambda free (lambda term_var t)) $ depth
val none_t = Const (@{const_name None}, resultT)
val mk_if = Quickcheck_Common.mk_safe_if genuine_only none_t
fun mk_let safe _ (SOME (v, term_var)) t e =
mk_safe_let_expr genuine_only none_t safe (v, t,
e #> subst_free [(term_var, absdummy @{typ unit} (mk_safe_term t))])
| mk_let safe v NONE t e = mk_safe_let_expr genuine_only none_t safe (v, t, e)
val mk_test_term = mk_test_term lookup mk_exhaustive_closure mk_if mk_let none_t return ctxt
in lambda genuine_only (lambda depth (mk_test_term t)) end
fun mk_parametric_generator_expr mk_generator_expr =
Quickcheck_Common.gen_mk_parametric_generator_expr
((mk_generator_expr,
absdummy @{typ bool} (absdummy @{typ natural} (Const (@{const_name None}, resultT)))),
@{typ bool} --> @{typ natural} --> resultT)
fun mk_validator_expr ctxt t =
let
fun bounded_forallT T = (T --> @{typ bool}) --> @{typ natural} --> @{typ bool}
val ctxt' = Variable.auto_fixes t ctxt
val names = Term.add_free_names t []
val frees = map Free (Term.add_frees t [])
fun lookup v = the (AList.lookup (op =) (names ~~ frees) v)
val ([depth_name], _) = Variable.variant_fixes ["depth"] ctxt'
val depth = Free (depth_name, @{typ natural})
fun mk_bounded_forall (Free (s, T)) t =
Const (@{const_name Quickcheck_Exhaustive.bounded_forall_class.bounded_forall},
bounded_forallT T) $ lambda (Free (s, T)) t $ depth
fun mk_safe_if (cond, then_t, else_t) genuine = mk_if (cond, then_t, else_t genuine)
fun mk_let _ def v_opt t e = mk_let_expr (the_default def v_opt, t, e)
val mk_test_term =
mk_test_term lookup mk_bounded_forall mk_safe_if mk_let @{term True} (K @{term False}) ctxt
in lambda depth (mk_test_term t) end
fun mk_bounded_forall_generator_expr ctxt (t, eval_terms) =
let
val frees = Term.add_free_names t []
val dummy_term =
@{term "Code_Evaluation.Const (STR ''Pure.dummy_pattern'') (Typerep.Typerep (STR ''dummy'') [])"}
val return =
@{term "Some :: term list => term list option"} $
(HOLogic.mk_list @{typ term} (replicate (length frees + length eval_terms) dummy_term))
val wrap = absdummy @{typ bool}
(@{term "If :: bool \<Rightarrow> term list option \<Rightarrow> term list option \<Rightarrow> term list option"} $
Bound 0 $ @{term "None :: term list option"} $ return)
in HOLogic.mk_comp (wrap, mk_validator_expr ctxt t) end
(** generator compiliation **)
structure Data = Proof_Data
(
type T =
(unit -> Code_Numeral.natural -> bool -> Code_Numeral.natural -> (bool * term list) option) *
(unit -> (Code_Numeral.natural -> term list option) list) *
(unit -> (Code_Numeral.natural -> bool) list)
val empty: T =
(fn () => raise Fail "counterexample",
fn () => raise Fail "counterexample_batch",
fn () => raise Fail "validator_batch")
fun init _ = empty
)
val get_counterexample = #1 o Data.get
val get_counterexample_batch = #2 o Data.get
val get_validator_batch = #3 o Data.get
val put_counterexample = Data.map o @{apply 3(1)} o K
val put_counterexample_batch = Data.map o @{apply 3(2)} o K
val put_validator_batch = Data.map o @{apply 3(3)} o K
val target = "Quickcheck"
fun compile_generator_expr_raw ctxt ts =
let
val mk_generator_expr =
if Config.get ctxt fast then mk_fast_generator_expr
else if Config.get ctxt bounded_forall then mk_bounded_forall_generator_expr
else if Config.get ctxt full_support then mk_full_generator_expr else mk_generator_expr
val t' = mk_parametric_generator_expr mk_generator_expr ctxt ts
val compile =
Code_Runtime.dynamic_value_strict
(get_counterexample, put_counterexample, "Exhaustive_Generators.put_counterexample")
ctxt (SOME target)
(fn proc => fn g => fn card => fn genuine_only => fn size =>
g card genuine_only size
|> (Option.map o apsnd o map) proc) t' []
in
fn genuine_only => fn [card, size] =>
rpair NONE (compile card genuine_only size
|> (if Config.get ctxt quickcheck_pretty then
Option.map (apsnd (map Quickcheck_Common.post_process_term)) else I))
end
fun compile_generator_expr ctxt ts =
let val compiled = compile_generator_expr_raw ctxt ts in
fn genuine_only => fn [card, size] =>
compiled genuine_only
[Code_Numeral.natural_of_integer card, Code_Numeral.natural_of_integer size]
end
fun compile_generator_exprs_raw ctxt ts =
let
val ts' = map (fn t => mk_generator_expr ctxt (t, [])) ts
val compiles =
Code_Runtime.dynamic_value_strict
(get_counterexample_batch, put_counterexample_batch,
"Exhaustive_Generators.put_counterexample_batch")
ctxt (SOME target) (fn proc => map (fn g => g #> (Option.map o map) proc))
(HOLogic.mk_list @{typ "natural => term list option"} ts') []
in
map (fn compile => fn size =>
compile size |> (Option.map o map) Quickcheck_Common.post_process_term) compiles
end
fun compile_generator_exprs ctxt ts =
compile_generator_exprs_raw ctxt ts
|> map (fn f => fn size => f (Code_Numeral.natural_of_integer size))
fun compile_validator_exprs_raw ctxt ts =
let val ts' = map (mk_validator_expr ctxt) ts in
Code_Runtime.dynamic_value_strict
(get_validator_batch, put_validator_batch, "Exhaustive_Generators.put_validator_batch")
ctxt (SOME target) (K I) (HOLogic.mk_list @{typ "natural \<Rightarrow> bool"} ts') []
end
fun compile_validator_exprs ctxt ts =
compile_validator_exprs_raw ctxt ts
|> map (fn f => fn size => f (Code_Numeral.natural_of_integer size))
fun size_matters_for thy Ts = not (forall (fn T => Sign.of_sort thy (T, @{sort check_all})) Ts)
val test_goals =
Quickcheck_Common.generator_test_goal_terms
("exhaustive", (size_matters_for, compile_generator_expr))
(* setup *)
val setup_exhaustive_datatype_interpretation =
Quickcheck_Common.datatype_interpretation @{plugin quickcheck_exhaustive}
(@{sort exhaustive}, instantiate_exhaustive_datatype)
val setup_bounded_forall_datatype_interpretation =
BNF_LFP_Compat.interpretation @{plugin quickcheck_bounded_forall} Quickcheck_Common.compat_prefs
(Quickcheck_Common.ensure_sort
(((@{sort type}, @{sort type}), @{sort bounded_forall}),
(fn thy => BNF_LFP_Compat.the_descr thy Quickcheck_Common.compat_prefs,
instantiate_bounded_forall_datatype)))
val active = Attrib.setup_config_bool @{binding quickcheck_exhaustive_active} (K true)
val _ =
Theory.setup
(Quickcheck_Common.datatype_interpretation @{plugin quickcheck_full_exhaustive}
(@{sort full_exhaustive}, instantiate_full_exhaustive_datatype)
#> Context.theory_map (Quickcheck.add_tester ("exhaustive", (active, test_goals)))
#> Context.theory_map (Quickcheck.add_batch_generator ("exhaustive", compile_generator_exprs))
#> Context.theory_map (Quickcheck.add_batch_validator ("exhaustive", compile_validator_exprs)))
end