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(* Title: Tools/code/code_thingol.ML
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ID: $Id$
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Author: Florian Haftmann, TU Muenchen
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Intermediate language ("Thin-gol") representing executable code.
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Representation and translation.
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*)
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infix 8 `%%;
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infix 4 `$;
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infix 4 `$$;
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infixr 3 `|->;
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infixr 3 `|-->;
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signature BASIC_CODE_THINGOL =
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sig
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type vname = string;
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datatype dict =
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DictConst of string * dict list list
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| DictVar of string list * (vname * (int * int));
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datatype itype =
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`%% of string * itype list
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| ITyVar of vname;
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type const = string * (dict list list * itype list (*types of arguments*))
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datatype iterm =
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IConst of const
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| IVar of vname
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| `$ of iterm * iterm
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| `|-> of (vname * itype) * iterm
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| ICase of ((iterm * itype) * (iterm * iterm) list) * iterm;
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(*((term, type), [(selector pattern, body term )]), primitive term)*)
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val `$$ : iterm * iterm list -> iterm;
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val `|--> : (vname * itype) list * iterm -> iterm;
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type typscheme = (vname * sort) list * itype;
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end;
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signature CODE_THINGOL =
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sig
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include BASIC_CODE_THINGOL
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val unfoldl: ('a -> ('a * 'b) option) -> 'a -> 'a * 'b list
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val unfoldr: ('a -> ('b * 'a) option) -> 'a -> 'b list * 'a
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val unfold_fun: itype -> itype list * itype
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val unfold_app: iterm -> iterm * iterm list
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val split_abs: iterm -> (((vname * iterm option) * itype) * iterm) option
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val unfold_abs: iterm -> ((vname * iterm option) * itype) list * iterm
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val split_let: iterm -> (((iterm * itype) * iterm) * iterm) option
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val unfold_let: iterm -> ((iterm * itype) * iterm) list * iterm
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val unfold_const_app: iterm ->
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((string * (dict list list * itype list)) * iterm list) option
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val collapse_let: ((vname * itype) * iterm) * iterm
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-> (iterm * itype) * (iterm * iterm) list
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val eta_expand: int -> (string * (dict list list * itype list)) * iterm list -> iterm
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val contains_dictvar: iterm -> bool
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val locally_monomorphic: iterm -> bool
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val fold_constnames: (string -> 'a -> 'a) -> iterm -> 'a -> 'a
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val fold_varnames: (string -> 'a -> 'a) -> iterm -> 'a -> 'a
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val fold_unbound_varnames: (string -> 'a -> 'a) -> iterm -> 'a -> 'a
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type naming
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val empty_naming: naming
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val lookup_class: naming -> class -> string option
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val lookup_classrel: naming -> class * class -> string option
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val lookup_tyco: naming -> string -> string option
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val lookup_instance: naming -> class * string -> string option
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val lookup_const: naming -> string -> string option
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datatype stmt =
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NoStmt
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| Fun of string * (typscheme * ((iterm list * iterm) * (thm * bool)) list)
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| Datatype of string * ((vname * sort) list * (string * itype list) list)
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| Datatypecons of string * string
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| Class of class * (vname * ((class * string) list * (string * itype) list))
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| Classrel of class * class
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| Classparam of string * class
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| Classinst of (class * (string * (vname * sort) list))
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* ((class * (string * (string * dict list list))) list
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* ((string * const) * (thm * bool)) list)
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type program = stmt Graph.T
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val empty_funs: program -> string list
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val map_terms_bottom_up: (iterm -> iterm) -> iterm -> iterm
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val map_terms_stmt: (iterm -> iterm) -> stmt -> stmt
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val is_cons: program -> string -> bool
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val contr_classparam_typs: program -> string -> itype option list
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val consts_program: theory -> string list -> string list * (naming * program)
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val cached_program: theory -> naming * program
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val eval_conv: theory
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-> (term -> term * (naming -> program -> typscheme * iterm -> string list -> thm))
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-> cterm -> thm
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val eval_term: theory
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-> (term -> term * (naming -> program -> typscheme * iterm -> string list -> 'a))
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-> term -> 'a
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end;
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structure Code_Thingol: CODE_THINGOL =
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struct
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(** auxiliary **)
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fun unfoldl dest x =
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case dest x
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of NONE => (x, [])
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| SOME (x1, x2) =>
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let val (x', xs') = unfoldl dest x1 in (x', xs' @ [x2]) end;
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fun unfoldr dest x =
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case dest x
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of NONE => ([], x)
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| SOME (x1, x2) =>
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let val (xs', x') = unfoldr dest x2 in (x1::xs', x') end;
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(** language core - types, patterns, expressions **)
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type vname = string;
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datatype dict =
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DictConst of string * dict list list
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| DictVar of string list * (vname * (int * int));
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datatype itype =
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`%% of string * itype list
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| ITyVar of vname;
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type const = string * (dict list list * itype list (*types of arguments*))
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datatype iterm =
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IConst of const
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| IVar of vname
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| `$ of iterm * iterm
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| `|-> of (vname * itype) * iterm
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| ICase of ((iterm * itype) * (iterm * iterm) list) * iterm;
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(*see also signature*)
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(*
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variable naming conventions
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bare names:
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variable names v
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class names class
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type constructor names tyco
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datatype names dtco
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const names (general) c (const)
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constructor names co
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class parameter names classparam
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arbitrary name s
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v, c, co, classparam also annotated with types etc.
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constructs:
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sort sort
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type parameters vs
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type ty
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type schemes tysm
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term t
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(term as pattern) p
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instance (class, tyco) inst
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*)
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val op `$$ = Library.foldl (op `$);
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val op `|--> = Library.foldr (op `|->);
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val unfold_app = unfoldl
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(fn op `$ t => SOME t
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| _ => NONE);
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val split_abs =
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(fn (v, ty) `|-> (t as ICase (((IVar w, _), [(p, t')]), _)) =>
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if v = w then SOME (((v, SOME p), ty), t') else SOME (((v, NONE), ty), t)
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| (v, ty) `|-> t => SOME (((v, NONE), ty), t)
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| _ => NONE);
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val unfold_abs = unfoldr split_abs;
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val split_let =
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(fn ICase (((td, ty), [(p, t)]), _) => SOME (((p, ty), td), t)
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| _ => NONE);
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val unfold_let = unfoldr split_let;
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fun unfold_const_app t =
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case unfold_app t
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of (IConst c, ts) => SOME (c, ts)
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| _ => NONE;
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fun fold_aiterms f (t as IConst _) = f t
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| fold_aiterms f (t as IVar _) = f t
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| fold_aiterms f (t1 `$ t2) = fold_aiterms f t1 #> fold_aiterms f t2
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| fold_aiterms f (t as _ `|-> t') = f t #> fold_aiterms f t'
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| fold_aiterms f (ICase (_, t)) = fold_aiterms f t;
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fun fold_constnames f =
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let
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fun add (IConst (c, _)) = f c
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| add _ = I;
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in fold_aiterms add end;
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fun fold_varnames f =
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let
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fun add (IVar v) = f v
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| add ((v, _) `|-> _) = f v
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| add _ = I;
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in fold_aiterms add end;
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fun fold_unbound_varnames f =
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let
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fun add _ (IConst _) = I
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| add vs (IVar v) = if not (member (op =) vs v) then f v else I
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| add vs (t1 `$ t2) = add vs t1 #> add vs t2
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| add vs ((v, _) `|-> t) = add (insert (op =) v vs) t
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| add vs (ICase (_, t)) = add vs t;
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in add [] end;
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fun collapse_let (((v, ty), se), be as ICase (((IVar w, _), ds), _)) =
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let
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fun exists_v t = fold_unbound_varnames (fn w => fn b =>
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b orelse v = w) t false;
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in if v = w andalso forall (fn (t1, t2) =>
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exists_v t1 orelse not (exists_v t2)) ds
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then ((se, ty), ds)
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else ((se, ty), [(IVar v, be)])
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end
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| collapse_let (((v, ty), se), be) =
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((se, ty), [(IVar v, be)])
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fun eta_expand k (c as (_, (_, tys)), ts) =
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let
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val j = length ts;
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val l = k - j;
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val ctxt = (fold o fold_varnames) Name.declare ts Name.context;
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val vs_tys = Name.names ctxt "a" ((curry Library.take l o curry Library.drop j) tys);
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in vs_tys `|--> IConst c `$$ ts @ map (fn (v, _) => IVar v) vs_tys end;
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fun contains_dictvar t =
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let
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fun contains (DictConst (_, dss)) = (fold o fold) contains dss
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| contains (DictVar _) = K true;
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in
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fold_aiterms
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(fn IConst (_, (dss, _)) => (fold o fold) contains dss | _ => I) t false
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end;
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fun locally_monomorphic (IConst _) = false
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| locally_monomorphic (IVar _) = true
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| locally_monomorphic (t `$ _) = locally_monomorphic t
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| locally_monomorphic (_ `|-> t) = locally_monomorphic t
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| locally_monomorphic (ICase ((_, ds), _)) = exists (locally_monomorphic o snd) ds;
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(** namings **)
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(* policies *)
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local
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fun thyname_of thy f x = the (AList.lookup (op =) (f x) Markup.theory_nameN);
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fun thyname_of_class thy =
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thyname_of thy (ProofContext.query_class (ProofContext.init thy));
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fun thyname_of_tyco thy =
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thyname_of thy (Type.the_tags (Sign.tsig_of thy));
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fun thyname_of_instance thy inst = case AxClass.arity_property thy inst Markup.theory_nameN
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of [] => error ("no such instance: " ^ quote (snd inst ^ " :: " ^ fst inst))
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| thyname :: _ => thyname;
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fun thyname_of_const thy c = case AxClass.class_of_param thy c
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of SOME class => thyname_of_class thy class
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| NONE => (case Code.get_datatype_of_constr thy c
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of SOME dtco => thyname_of_tyco thy dtco
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| NONE => thyname_of thy (Consts.the_tags (Sign.consts_of thy)) c);
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fun namify thy get_basename get_thyname name =
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let
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val prefix = get_thyname thy name;
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val base = (Code_Name.purify_base true o get_basename) name;
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in NameSpace.append prefix base end;
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in
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|
275 |
fun namify_class thy = namify thy NameSpace.base thyname_of_class;
|
haftmann@28663
|
276 |
fun namify_classrel thy = namify thy (fn (class1, class2) =>
|
haftmann@28663
|
277 |
NameSpace.base class2 ^ "_" ^ NameSpace.base class1) (fn thy => thyname_of_class thy o fst);
|
haftmann@28663
|
278 |
(*order fits nicely with composed projections*)
|
haftmann@28688
|
279 |
fun namify_tyco thy "fun" = "Pure.fun"
|
haftmann@28688
|
280 |
| namify_tyco thy tyco = namify thy NameSpace.base thyname_of_tyco tyco;
|
haftmann@28663
|
281 |
fun namify_instance thy = namify thy (fn (class, tyco) =>
|
haftmann@28663
|
282 |
NameSpace.base class ^ "_" ^ NameSpace.base tyco) thyname_of_instance;
|
haftmann@28663
|
283 |
fun namify_const thy = namify thy NameSpace.base thyname_of_const;
|
haftmann@28663
|
284 |
|
haftmann@28663
|
285 |
end; (* local *)
|
haftmann@28663
|
286 |
|
haftmann@28663
|
287 |
|
haftmann@28688
|
288 |
(* data *)
|
haftmann@28663
|
289 |
|
haftmann@28663
|
290 |
structure StringPairTab = Code_Name.StringPairTab;
|
haftmann@28663
|
291 |
|
haftmann@28663
|
292 |
datatype naming = Naming of {
|
haftmann@28663
|
293 |
class: class Symtab.table * Name.context,
|
haftmann@28663
|
294 |
classrel: string StringPairTab.table * Name.context,
|
haftmann@28663
|
295 |
tyco: string Symtab.table * Name.context,
|
haftmann@28663
|
296 |
instance: string StringPairTab.table * Name.context,
|
haftmann@28663
|
297 |
const: string Symtab.table * Name.context
|
haftmann@28663
|
298 |
}
|
haftmann@28663
|
299 |
|
haftmann@28663
|
300 |
fun dest_Naming (Naming naming) = naming;
|
haftmann@28663
|
301 |
|
haftmann@28663
|
302 |
val empty_naming = Naming {
|
haftmann@28663
|
303 |
class = (Symtab.empty, Name.context),
|
haftmann@28663
|
304 |
classrel = (StringPairTab.empty, Name.context),
|
haftmann@28663
|
305 |
tyco = (Symtab.empty, Name.context),
|
haftmann@28663
|
306 |
instance = (StringPairTab.empty, Name.context),
|
haftmann@28663
|
307 |
const = (Symtab.empty, Name.context)
|
haftmann@28663
|
308 |
};
|
haftmann@28663
|
309 |
|
haftmann@28663
|
310 |
local
|
haftmann@28663
|
311 |
fun mk_naming (class, classrel, tyco, instance, const) =
|
haftmann@28663
|
312 |
Naming { class = class, classrel = classrel,
|
haftmann@28663
|
313 |
tyco = tyco, instance = instance, const = const };
|
haftmann@28663
|
314 |
fun map_naming f (Naming { class, classrel, tyco, instance, const }) =
|
haftmann@28663
|
315 |
mk_naming (f (class, classrel, tyco, instance, const));
|
haftmann@28663
|
316 |
in
|
haftmann@28663
|
317 |
fun map_class f = map_naming
|
haftmann@28663
|
318 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
319 |
(f class, classrel, tyco, inst, const));
|
haftmann@28663
|
320 |
fun map_classrel f = map_naming
|
haftmann@28663
|
321 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
322 |
(class, f classrel, tyco, inst, const));
|
haftmann@28663
|
323 |
fun map_tyco f = map_naming
|
haftmann@28663
|
324 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
325 |
(class, classrel, f tyco, inst, const));
|
haftmann@28663
|
326 |
fun map_instance f = map_naming
|
haftmann@28663
|
327 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
328 |
(class, classrel, tyco, f inst, const));
|
haftmann@28663
|
329 |
fun map_const f = map_naming
|
haftmann@28663
|
330 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
331 |
(class, classrel, tyco, inst, f const));
|
haftmann@28663
|
332 |
end; (*local*)
|
haftmann@28663
|
333 |
|
haftmann@28663
|
334 |
fun add_variant update (thing, name) (tab, used) =
|
haftmann@28663
|
335 |
let
|
haftmann@28663
|
336 |
val (name', used') = yield_singleton Name.variants name used;
|
haftmann@28663
|
337 |
val tab' = update (thing, name') tab;
|
haftmann@28663
|
338 |
in (tab', used') end;
|
haftmann@28663
|
339 |
|
haftmann@28663
|
340 |
fun declare thy mapp lookup update namify thing =
|
haftmann@28663
|
341 |
mapp (add_variant update (thing, namify thy thing))
|
haftmann@28663
|
342 |
#> `(fn naming => the (lookup naming thing));
|
haftmann@28663
|
343 |
|
haftmann@28688
|
344 |
|
haftmann@28688
|
345 |
(* lookup and declare *)
|
haftmann@28688
|
346 |
|
haftmann@28688
|
347 |
local
|
haftmann@28688
|
348 |
|
haftmann@28688
|
349 |
val suffix_class = "class";
|
haftmann@28688
|
350 |
val suffix_classrel = "classrel"
|
haftmann@28688
|
351 |
val suffix_tyco = "tyco";
|
haftmann@28688
|
352 |
val suffix_instance = "inst";
|
haftmann@28688
|
353 |
val suffix_const = "const";
|
haftmann@28688
|
354 |
|
haftmann@28688
|
355 |
fun add_suffix nsp NONE = NONE
|
haftmann@28688
|
356 |
| add_suffix nsp (SOME name) = SOME (NameSpace.append name nsp);
|
haftmann@28688
|
357 |
|
haftmann@28688
|
358 |
in
|
haftmann@28688
|
359 |
|
haftmann@28663
|
360 |
val lookup_class = add_suffix suffix_class
|
haftmann@28663
|
361 |
oo Symtab.lookup o fst o #class o dest_Naming;
|
haftmann@28663
|
362 |
val lookup_classrel = add_suffix suffix_classrel
|
haftmann@28663
|
363 |
oo StringPairTab.lookup o fst o #classrel o dest_Naming;
|
haftmann@28663
|
364 |
val lookup_tyco = add_suffix suffix_tyco
|
haftmann@28663
|
365 |
oo Symtab.lookup o fst o #tyco o dest_Naming;
|
haftmann@28663
|
366 |
val lookup_instance = add_suffix suffix_instance
|
haftmann@28663
|
367 |
oo StringPairTab.lookup o fst o #instance o dest_Naming;
|
haftmann@28663
|
368 |
val lookup_const = add_suffix suffix_const
|
haftmann@28663
|
369 |
oo Symtab.lookup o fst o #const o dest_Naming;
|
haftmann@28663
|
370 |
|
haftmann@28663
|
371 |
fun declare_class thy = declare thy map_class
|
haftmann@28663
|
372 |
lookup_class Symtab.update_new namify_class;
|
haftmann@28663
|
373 |
fun declare_classrel thy = declare thy map_classrel
|
haftmann@28663
|
374 |
lookup_classrel StringPairTab.update_new namify_classrel;
|
haftmann@28663
|
375 |
fun declare_tyco thy = declare thy map_tyco
|
haftmann@28663
|
376 |
lookup_tyco Symtab.update_new namify_tyco;
|
haftmann@28663
|
377 |
fun declare_instance thy = declare thy map_instance
|
haftmann@28663
|
378 |
lookup_instance StringPairTab.update_new namify_instance;
|
haftmann@28663
|
379 |
fun declare_const thy = declare thy map_const
|
haftmann@28663
|
380 |
lookup_const Symtab.update_new namify_const;
|
haftmann@28663
|
381 |
|
haftmann@28688
|
382 |
val unfold_fun = unfoldr
|
haftmann@28688
|
383 |
(fn "Pure.fun.tyco" `%% [ty1, ty2] => SOME (ty1, ty2)
|
haftmann@28688
|
384 |
| _ => NONE); (*depends on suffix_tyco and namify_tyco!*)
|
haftmann@28688
|
385 |
|
haftmann@28688
|
386 |
end; (* local *)
|
haftmann@28688
|
387 |
|
haftmann@24219
|
388 |
|
haftmann@27103
|
389 |
(** statements, abstract programs **)
|
haftmann@24219
|
390 |
|
haftmann@24219
|
391 |
type typscheme = (vname * sort) list * itype;
|
haftmann@24918
|
392 |
datatype stmt =
|
haftmann@27024
|
393 |
NoStmt
|
haftmann@28663
|
394 |
| Fun of string * (typscheme * ((iterm list * iterm) * (thm * bool)) list)
|
haftmann@28663
|
395 |
| Datatype of string * ((vname * sort) list * (string * itype list) list)
|
haftmann@28663
|
396 |
| Datatypecons of string * string
|
haftmann@28663
|
397 |
| Class of class * (vname * ((class * string) list * (string * itype) list))
|
haftmann@24219
|
398 |
| Classrel of class * class
|
haftmann@28663
|
399 |
| Classparam of string * class
|
haftmann@24219
|
400 |
| Classinst of (class * (string * (vname * sort) list))
|
haftmann@24219
|
401 |
* ((class * (string * (string * dict list list))) list
|
haftmann@28350
|
402 |
* ((string * const) * (thm * bool)) list);
|
haftmann@24219
|
403 |
|
haftmann@27103
|
404 |
type program = stmt Graph.T;
|
haftmann@24219
|
405 |
|
haftmann@27103
|
406 |
fun empty_funs program =
|
haftmann@28663
|
407 |
Graph.fold (fn (name, (Fun (c, (_, [])), _)) => cons c
|
haftmann@27103
|
408 |
| _ => I) program [];
|
haftmann@24219
|
409 |
|
haftmann@27711
|
410 |
fun map_terms_bottom_up f (t as IConst _) = f t
|
haftmann@27711
|
411 |
| map_terms_bottom_up f (t as IVar _) = f t
|
haftmann@27711
|
412 |
| map_terms_bottom_up f (t1 `$ t2) = f
|
haftmann@27711
|
413 |
(map_terms_bottom_up f t1 `$ map_terms_bottom_up f t2)
|
haftmann@27711
|
414 |
| map_terms_bottom_up f ((v, ty) `|-> t) = f
|
haftmann@27711
|
415 |
((v, ty) `|-> map_terms_bottom_up f t)
|
haftmann@27711
|
416 |
| map_terms_bottom_up f (ICase (((t, ty), ps), t0)) = f
|
haftmann@27711
|
417 |
(ICase (((map_terms_bottom_up f t, ty), (map o pairself)
|
haftmann@27711
|
418 |
(map_terms_bottom_up f) ps), map_terms_bottom_up f t0));
|
haftmann@27711
|
419 |
|
haftmann@27711
|
420 |
fun map_terms_stmt f NoStmt = NoStmt
|
haftmann@28663
|
421 |
| map_terms_stmt f (Fun (c, (tysm, eqs))) = Fun (c, (tysm, (map o apfst)
|
haftmann@28663
|
422 |
(fn (ts, t) => (map f ts, f t)) eqs))
|
haftmann@27711
|
423 |
| map_terms_stmt f (stmt as Datatype _) = stmt
|
haftmann@27711
|
424 |
| map_terms_stmt f (stmt as Datatypecons _) = stmt
|
haftmann@27711
|
425 |
| map_terms_stmt f (stmt as Class _) = stmt
|
haftmann@27711
|
426 |
| map_terms_stmt f (stmt as Classrel _) = stmt
|
haftmann@27711
|
427 |
| map_terms_stmt f (stmt as Classparam _) = stmt
|
haftmann@27711
|
428 |
| map_terms_stmt f (Classinst (arity, (superarities, classparms))) =
|
haftmann@27711
|
429 |
Classinst (arity, (superarities, (map o apfst o apsnd) (fn const =>
|
haftmann@27711
|
430 |
case f (IConst const) of IConst const' => const') classparms));
|
haftmann@27711
|
431 |
|
haftmann@27103
|
432 |
fun is_cons program name = case Graph.get_node program name
|
haftmann@24219
|
433 |
of Datatypecons _ => true
|
haftmann@24219
|
434 |
| _ => false;
|
haftmann@24219
|
435 |
|
haftmann@27103
|
436 |
fun contr_classparam_typs program name = case Graph.get_node program name
|
haftmann@28663
|
437 |
of Classparam (_, class) => let
|
haftmann@28663
|
438 |
val Class (_, (_, (_, params))) = Graph.get_node program class;
|
haftmann@25621
|
439 |
val SOME ty = AList.lookup (op =) params name;
|
haftmann@25621
|
440 |
val (tys, res_ty) = unfold_fun ty;
|
haftmann@25621
|
441 |
fun no_tyvar (_ `%% tys) = forall no_tyvar tys
|
haftmann@25621
|
442 |
| no_tyvar (ITyVar _) = false;
|
haftmann@25621
|
443 |
in if no_tyvar res_ty
|
haftmann@25621
|
444 |
then map (fn ty => if no_tyvar ty then NONE else SOME ty) tys
|
haftmann@25621
|
445 |
else []
|
haftmann@25621
|
446 |
end
|
haftmann@25621
|
447 |
| _ => [];
|
haftmann@25621
|
448 |
|
haftmann@24219
|
449 |
|
haftmann@27103
|
450 |
(** translation kernel **)
|
haftmann@24219
|
451 |
|
haftmann@28724
|
452 |
(* generic mechanisms *)
|
haftmann@28724
|
453 |
|
haftmann@28663
|
454 |
fun ensure_stmt lookup declare generate thing (dep, (naming, program)) =
|
haftmann@24219
|
455 |
let
|
haftmann@28706
|
456 |
fun add_dep name = case dep of NONE => I
|
haftmann@28706
|
457 |
| SOME dep => Graph.add_edge (dep, name);
|
haftmann@28706
|
458 |
val (name, naming') = case lookup naming thing
|
haftmann@28706
|
459 |
of SOME name => (name, naming)
|
haftmann@28706
|
460 |
| NONE => declare thing naming;
|
haftmann@28706
|
461 |
in case try (Graph.get_node program) name
|
haftmann@28706
|
462 |
of SOME stmt => program
|
haftmann@28663
|
463 |
|> add_dep name
|
haftmann@28706
|
464 |
|> pair naming'
|
haftmann@28663
|
465 |
|> pair dep
|
haftmann@28663
|
466 |
|> pair name
|
haftmann@28706
|
467 |
| NONE => program
|
haftmann@28706
|
468 |
|> Graph.default_node (name, NoStmt)
|
haftmann@28706
|
469 |
|> add_dep name
|
haftmann@28706
|
470 |
|> pair naming'
|
haftmann@28706
|
471 |
|> curry generate (SOME name)
|
haftmann@28706
|
472 |
||> snd
|
haftmann@28706
|
473 |
|-> (fn stmt => (apsnd o Graph.map_node name) (K stmt))
|
haftmann@28706
|
474 |
|> pair dep
|
haftmann@28706
|
475 |
|> pair name
|
haftmann@24219
|
476 |
end;
|
haftmann@24219
|
477 |
|
haftmann@26972
|
478 |
fun not_wellsorted thy thm ty sort e =
|
haftmann@26972
|
479 |
let
|
haftmann@26972
|
480 |
val err_class = Sorts.class_error (Syntax.pp_global thy) e;
|
haftmann@26972
|
481 |
val err_thm = case thm
|
haftmann@26972
|
482 |
of SOME thm => "\n(in defining equation " ^ Display.string_of_thm thm ^ ")" | NONE => "";
|
haftmann@26972
|
483 |
val err_typ = "Type " ^ Syntax.string_of_typ_global thy ty ^ " not of sort "
|
haftmann@26972
|
484 |
^ Syntax.string_of_sort_global thy sort;
|
haftmann@26972
|
485 |
in error ("Wellsortedness error" ^ err_thm ^ ":\n" ^ err_typ ^ "\n" ^ err_class) end;
|
haftmann@26972
|
486 |
|
haftmann@28724
|
487 |
|
haftmann@28724
|
488 |
(* translation *)
|
haftmann@28724
|
489 |
|
haftmann@26972
|
490 |
fun ensure_class thy (algbr as (_, algebra)) funcgr class =
|
haftmann@24918
|
491 |
let
|
haftmann@28924
|
492 |
val superclasses = (Sorts.minimize_sort algebra o Sorts.super_classes algebra) class;
|
wenzelm@24969
|
493 |
val cs = #params (AxClass.get_info thy class);
|
haftmann@24918
|
494 |
val stmt_class =
|
haftmann@24918
|
495 |
fold_map (fn superclass => ensure_class thy algbr funcgr superclass
|
haftmann@24918
|
496 |
##>> ensure_classrel thy algbr funcgr (class, superclass)) superclasses
|
haftmann@24918
|
497 |
##>> fold_map (fn (c, ty) => ensure_const thy algbr funcgr c
|
haftmann@28688
|
498 |
##>> translate_typ thy algbr funcgr ty) cs
|
haftmann@28663
|
499 |
#>> (fn info => Class (class, (unprefix "'" Name.aT, info)))
|
haftmann@28663
|
500 |
in ensure_stmt lookup_class (declare_class thy) stmt_class class end
|
haftmann@24918
|
501 |
and ensure_classrel thy algbr funcgr (subclass, superclass) =
|
haftmann@24918
|
502 |
let
|
haftmann@24918
|
503 |
val stmt_classrel =
|
haftmann@24918
|
504 |
ensure_class thy algbr funcgr subclass
|
haftmann@24918
|
505 |
##>> ensure_class thy algbr funcgr superclass
|
haftmann@24918
|
506 |
#>> Classrel;
|
haftmann@28663
|
507 |
in ensure_stmt lookup_classrel (declare_classrel thy) stmt_classrel (subclass, superclass) end
|
haftmann@28688
|
508 |
and ensure_tyco thy algbr funcgr tyco =
|
haftmann@28688
|
509 |
let
|
haftmann@28688
|
510 |
val stmt_datatype =
|
haftmann@24918
|
511 |
let
|
haftmann@28688
|
512 |
val (vs, cos) = Code.get_datatype thy tyco;
|
haftmann@28688
|
513 |
in
|
haftmann@28688
|
514 |
fold_map (translate_tyvar_sort thy algbr funcgr) vs
|
haftmann@28688
|
515 |
##>> fold_map (fn (c, tys) =>
|
haftmann@28688
|
516 |
ensure_const thy algbr funcgr c
|
haftmann@28688
|
517 |
##>> fold_map (translate_typ thy algbr funcgr) tys) cos
|
haftmann@28688
|
518 |
#>> (fn info => Datatype (tyco, info))
|
haftmann@28688
|
519 |
end;
|
haftmann@28688
|
520 |
in ensure_stmt lookup_tyco (declare_tyco thy) stmt_datatype tyco end
|
haftmann@28688
|
521 |
and translate_tyvar_sort thy (algbr as (proj_sort, _)) funcgr (v, sort) =
|
haftmann@24918
|
522 |
fold_map (ensure_class thy algbr funcgr) (proj_sort sort)
|
haftmann@24918
|
523 |
#>> (fn sort => (unprefix "'" v, sort))
|
haftmann@28688
|
524 |
and translate_typ thy algbr funcgr (TFree v_sort) =
|
haftmann@28688
|
525 |
translate_tyvar_sort thy algbr funcgr v_sort
|
haftmann@24918
|
526 |
#>> (fn (v, sort) => ITyVar v)
|
haftmann@28688
|
527 |
| translate_typ thy algbr funcgr (Type (tyco, tys)) =
|
haftmann@24918
|
528 |
ensure_tyco thy algbr funcgr tyco
|
haftmann@28688
|
529 |
##>> fold_map (translate_typ thy algbr funcgr) tys
|
haftmann@24918
|
530 |
#>> (fn (tyco, tys) => tyco `%% tys)
|
haftmann@28688
|
531 |
and translate_dicts thy (algbr as (proj_sort, algebra)) funcgr thm (ty, sort) =
|
haftmann@24918
|
532 |
let
|
wenzelm@26939
|
533 |
val pp = Syntax.pp_global thy;
|
haftmann@24918
|
534 |
datatype typarg =
|
haftmann@24918
|
535 |
Global of (class * string) * typarg list list
|
haftmann@24918
|
536 |
| Local of (class * class) list * (string * (int * sort));
|
haftmann@24918
|
537 |
fun class_relation (Global ((_, tyco), yss), _) class =
|
haftmann@24918
|
538 |
Global ((class, tyco), yss)
|
haftmann@24918
|
539 |
| class_relation (Local (classrels, v), subclass) superclass =
|
haftmann@24918
|
540 |
Local ((subclass, superclass) :: classrels, v);
|
haftmann@28924
|
541 |
fun norm_typargs ys =
|
haftmann@28924
|
542 |
let
|
haftmann@28924
|
543 |
val raw_sort = map snd ys;
|
haftmann@28924
|
544 |
val sort = Sorts.minimize_sort algebra raw_sort;
|
haftmann@28924
|
545 |
in
|
haftmann@28924
|
546 |
map_filter (fn (y, class) =>
|
haftmann@28924
|
547 |
if member (op =) sort class then SOME y else NONE) ys
|
haftmann@28924
|
548 |
end;
|
haftmann@24918
|
549 |
fun type_constructor tyco yss class =
|
haftmann@28924
|
550 |
Global ((class, tyco), map norm_typargs yss);
|
haftmann@24918
|
551 |
fun type_variable (TFree (v, sort)) =
|
haftmann@24918
|
552 |
let
|
haftmann@24918
|
553 |
val sort' = proj_sort sort;
|
haftmann@24918
|
554 |
in map_index (fn (n, class) => (Local ([], (v, (n, sort'))), class)) sort' end;
|
haftmann@24918
|
555 |
val typargs = Sorts.of_sort_derivation pp algebra
|
haftmann@24918
|
556 |
{class_relation = class_relation, type_constructor = type_constructor,
|
haftmann@26972
|
557 |
type_variable = type_variable} (ty, proj_sort sort)
|
haftmann@26972
|
558 |
handle Sorts.CLASS_ERROR e => not_wellsorted thy thm ty sort e;
|
haftmann@24918
|
559 |
fun mk_dict (Global (inst, yss)) =
|
haftmann@24918
|
560 |
ensure_inst thy algbr funcgr inst
|
haftmann@24918
|
561 |
##>> (fold_map o fold_map) mk_dict yss
|
haftmann@24918
|
562 |
#>> (fn (inst, dss) => DictConst (inst, dss))
|
haftmann@24918
|
563 |
| mk_dict (Local (classrels, (v, (k, sort)))) =
|
haftmann@24918
|
564 |
fold_map (ensure_classrel thy algbr funcgr) classrels
|
haftmann@24918
|
565 |
#>> (fn classrels => DictVar (classrels, (unprefix "'" v, (k, length sort))))
|
haftmann@27422
|
566 |
in fold_map mk_dict typargs end
|
haftmann@28688
|
567 |
and translate_eq thy algbr funcgr (thm, linear) =
|
haftmann@24918
|
568 |
let
|
haftmann@24918
|
569 |
val (args, rhs) = (apfst (snd o strip_comb) o Logic.dest_equals
|
haftmann@24918
|
570 |
o Logic.unvarify o prop_of) thm;
|
haftmann@24918
|
571 |
in
|
haftmann@28688
|
572 |
fold_map (translate_term thy algbr funcgr (SOME thm)) args
|
haftmann@28688
|
573 |
##>> translate_term thy algbr funcgr (SOME thm) rhs
|
haftmann@28350
|
574 |
#>> rpair (thm, linear)
|
haftmann@24918
|
575 |
end
|
haftmann@26972
|
576 |
and ensure_inst thy (algbr as (_, algebra)) funcgr (class, tyco) =
|
haftmann@24918
|
577 |
let
|
haftmann@28924
|
578 |
val superclasses = (Sorts.minimize_sort algebra o Sorts.super_classes algebra) class;
|
wenzelm@24969
|
579 |
val classparams = these (try (#params o AxClass.get_info thy) class);
|
haftmann@24918
|
580 |
val vs = Name.names Name.context "'a" (Sorts.mg_domain algebra tyco [class]);
|
haftmann@24918
|
581 |
val sorts' = Sorts.mg_domain (Sign.classes_of thy) tyco [class];
|
haftmann@24918
|
582 |
val vs' = map2 (fn (v, sort1) => fn sort2 => (v,
|
haftmann@24918
|
583 |
Sorts.inter_sort (Sign.classes_of thy) (sort1, sort2))) vs sorts';
|
haftmann@24918
|
584 |
val arity_typ = Type (tyco, map TFree vs);
|
haftmann@24918
|
585 |
val arity_typ' = Type (tyco, map (fn (v, sort) => TVar ((v, 0), sort)) vs');
|
haftmann@28688
|
586 |
fun translate_superarity superclass =
|
haftmann@24918
|
587 |
ensure_class thy algbr funcgr superclass
|
haftmann@24918
|
588 |
##>> ensure_classrel thy algbr funcgr (class, superclass)
|
haftmann@28688
|
589 |
##>> translate_dicts thy algbr funcgr NONE (arity_typ, [superclass])
|
haftmann@24918
|
590 |
#>> (fn ((superclass, classrel), [DictConst (inst, dss)]) =>
|
haftmann@24918
|
591 |
(superclass, (classrel, (inst, dss))));
|
haftmann@28688
|
592 |
fun translate_classparam_inst (c, ty) =
|
haftmann@24918
|
593 |
let
|
haftmann@24918
|
594 |
val c_inst = Const (c, map_type_tfree (K arity_typ') ty);
|
haftmann@25597
|
595 |
val thm = AxClass.unoverload_conv thy (Thm.cterm_of thy c_inst);
|
haftmann@24918
|
596 |
val c_ty = (apsnd Logic.unvarifyT o dest_Const o snd
|
haftmann@24918
|
597 |
o Logic.dest_equals o Thm.prop_of) thm;
|
haftmann@24918
|
598 |
in
|
haftmann@24918
|
599 |
ensure_const thy algbr funcgr c
|
haftmann@28688
|
600 |
##>> translate_const thy algbr funcgr (SOME thm) c_ty
|
haftmann@28350
|
601 |
#>> (fn (c, IConst c_inst) => ((c, c_inst), (thm, true)))
|
haftmann@24918
|
602 |
end;
|
haftmann@24918
|
603 |
val stmt_inst =
|
haftmann@24918
|
604 |
ensure_class thy algbr funcgr class
|
haftmann@24918
|
605 |
##>> ensure_tyco thy algbr funcgr tyco
|
haftmann@28688
|
606 |
##>> fold_map (translate_tyvar_sort thy algbr funcgr) vs
|
haftmann@28688
|
607 |
##>> fold_map translate_superarity superclasses
|
haftmann@28688
|
608 |
##>> fold_map translate_classparam_inst classparams
|
haftmann@24918
|
609 |
#>> (fn ((((class, tyco), arity), superarities), classparams) =>
|
haftmann@24918
|
610 |
Classinst ((class, (tyco, arity)), (superarities, classparams)));
|
haftmann@28663
|
611 |
in ensure_stmt lookup_instance (declare_instance thy) stmt_inst (class, tyco) end
|
haftmann@26972
|
612 |
and ensure_const thy algbr funcgr c =
|
haftmann@24918
|
613 |
let
|
haftmann@24918
|
614 |
fun stmt_datatypecons tyco =
|
haftmann@24918
|
615 |
ensure_tyco thy algbr funcgr tyco
|
haftmann@28663
|
616 |
#>> (fn tyco => Datatypecons (c, tyco));
|
haftmann@24918
|
617 |
fun stmt_classparam class =
|
haftmann@24918
|
618 |
ensure_class thy algbr funcgr class
|
haftmann@28663
|
619 |
#>> (fn class => Classparam (c, class));
|
haftmann@28663
|
620 |
fun stmt_fun ((vs, raw_ty), raw_thms) =
|
haftmann@24918
|
621 |
let
|
haftmann@26972
|
622 |
val ty = Logic.unvarifyT raw_ty;
|
haftmann@24918
|
623 |
val thms = if (null o Term.typ_tfrees) ty orelse (null o fst o strip_type) ty
|
haftmann@24918
|
624 |
then raw_thms
|
haftmann@28423
|
625 |
else (map o apfst) (Code_Unit.expand_eta thy 1) raw_thms;
|
haftmann@24918
|
626 |
in
|
haftmann@28688
|
627 |
fold_map (translate_tyvar_sort thy algbr funcgr) vs
|
haftmann@28688
|
628 |
##>> translate_typ thy algbr funcgr ty
|
haftmann@28688
|
629 |
##>> fold_map (translate_eq thy algbr funcgr) thms
|
haftmann@28663
|
630 |
#>> (fn info => Fun (c, info))
|
haftmann@24918
|
631 |
end;
|
haftmann@28663
|
632 |
val stmt_const = case Code.get_datatype_of_constr thy c
|
haftmann@24918
|
633 |
of SOME tyco => stmt_datatypecons tyco
|
haftmann@24918
|
634 |
| NONE => (case AxClass.class_of_param thy c
|
haftmann@24918
|
635 |
of SOME class => stmt_classparam class
|
haftmann@28663
|
636 |
| NONE => stmt_fun (Code_Funcgr.typ funcgr c, Code_Funcgr.eqns funcgr c))
|
haftmann@28663
|
637 |
in ensure_stmt lookup_const (declare_const thy) stmt_const c end
|
haftmann@28688
|
638 |
and translate_term thy algbr funcgr thm (Const (c, ty)) =
|
haftmann@28688
|
639 |
translate_app thy algbr funcgr thm ((c, ty), [])
|
haftmann@28688
|
640 |
| translate_term thy algbr funcgr thm (Free (v, _)) =
|
haftmann@24918
|
641 |
pair (IVar v)
|
haftmann@28688
|
642 |
| translate_term thy algbr funcgr thm (Abs (abs as (_, ty, _))) =
|
haftmann@24918
|
643 |
let
|
haftmann@24918
|
644 |
val (v, t) = Syntax.variant_abs abs;
|
haftmann@24918
|
645 |
in
|
haftmann@28688
|
646 |
translate_typ thy algbr funcgr ty
|
haftmann@28688
|
647 |
##>> translate_term thy algbr funcgr thm t
|
haftmann@24918
|
648 |
#>> (fn (ty, t) => (v, ty) `|-> t)
|
haftmann@24918
|
649 |
end
|
haftmann@28688
|
650 |
| translate_term thy algbr funcgr thm (t as _ $ _) =
|
haftmann@24918
|
651 |
case strip_comb t
|
haftmann@24918
|
652 |
of (Const (c, ty), ts) =>
|
haftmann@28688
|
653 |
translate_app thy algbr funcgr thm ((c, ty), ts)
|
haftmann@24918
|
654 |
| (t', ts) =>
|
haftmann@28688
|
655 |
translate_term thy algbr funcgr thm t'
|
haftmann@28688
|
656 |
##>> fold_map (translate_term thy algbr funcgr thm) ts
|
haftmann@24918
|
657 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@28688
|
658 |
and translate_const thy algbr funcgr thm (c, ty) =
|
haftmann@26972
|
659 |
let
|
haftmann@26972
|
660 |
val tys = Sign.const_typargs thy (c, ty);
|
haftmann@28054
|
661 |
val sorts = (map snd o fst o Code_Funcgr.typ funcgr) c;
|
haftmann@26972
|
662 |
val tys_args = (fst o Term.strip_type) ty;
|
haftmann@26972
|
663 |
in
|
haftmann@26972
|
664 |
ensure_const thy algbr funcgr c
|
haftmann@28688
|
665 |
##>> fold_map (translate_dicts thy algbr funcgr thm) (tys ~~ sorts)
|
haftmann@28688
|
666 |
##>> fold_map (translate_typ thy algbr funcgr) tys_args
|
haftmann@26972
|
667 |
#>> (fn ((c, iss), tys) => IConst (c, (iss, tys)))
|
haftmann@26972
|
668 |
end
|
haftmann@28688
|
669 |
and translate_app_default thy algbr funcgr thm (c_ty, ts) =
|
haftmann@28688
|
670 |
translate_const thy algbr funcgr thm c_ty
|
haftmann@28688
|
671 |
##>> fold_map (translate_term thy algbr funcgr thm) ts
|
haftmann@24918
|
672 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@28688
|
673 |
and translate_case thy algbr funcgr thm n cases (app as ((c, ty), ts)) =
|
haftmann@24918
|
674 |
let
|
haftmann@24918
|
675 |
val (tys, _) =
|
haftmann@24918
|
676 |
(chop (1 + (if null cases then 1 else length cases)) o fst o strip_type) ty;
|
haftmann@24918
|
677 |
val dt = nth ts n;
|
haftmann@24918
|
678 |
val dty = nth tys n;
|
haftmann@24918
|
679 |
fun is_undefined (Const (c, _)) = Code.is_undefined thy c
|
haftmann@24918
|
680 |
| is_undefined _ = false;
|
haftmann@24918
|
681 |
fun mk_case (co, n) t =
|
haftmann@24918
|
682 |
let
|
haftmann@28708
|
683 |
val _ = if (is_some o Code.get_datatype_of_constr thy) co then ()
|
haftmann@28708
|
684 |
else error ("Non-constructor " ^ quote co
|
haftmann@28708
|
685 |
^ " encountered in case pattern"
|
haftmann@28708
|
686 |
^ (case thm of NONE => ""
|
haftmann@28708
|
687 |
| SOME thm => ", in equation\n" ^ Display.string_of_thm thm))
|
haftmann@24918
|
688 |
val (vs, body) = Term.strip_abs_eta n t;
|
haftmann@24918
|
689 |
val selector = list_comb (Const (co, map snd vs ---> dty), map Free vs);
|
haftmann@24918
|
690 |
in if is_undefined body then NONE else SOME (selector, body) end;
|
haftmann@24918
|
691 |
fun mk_ds [] =
|
haftmann@24918
|
692 |
let
|
haftmann@24918
|
693 |
val ([v_ty], body) = Term.strip_abs_eta 1 (the_single (nth_drop n ts))
|
haftmann@24918
|
694 |
in [(Free v_ty, body)] end
|
haftmann@24918
|
695 |
| mk_ds cases = map_filter (uncurry mk_case)
|
haftmann@28054
|
696 |
(AList.make (Code_Unit.no_args thy) cases ~~ nth_drop n ts);
|
haftmann@24918
|
697 |
in
|
haftmann@28688
|
698 |
translate_term thy algbr funcgr thm dt
|
haftmann@28688
|
699 |
##>> translate_typ thy algbr funcgr dty
|
haftmann@28688
|
700 |
##>> fold_map (fn (pat, body) => translate_term thy algbr funcgr thm pat
|
haftmann@28688
|
701 |
##>> translate_term thy algbr funcgr thm body) (mk_ds cases)
|
haftmann@28688
|
702 |
##>> translate_app_default thy algbr funcgr thm app
|
haftmann@24918
|
703 |
#>> (fn (((dt, dty), ds), t0) => ICase (((dt, dty), ds), t0))
|
haftmann@24918
|
704 |
end
|
haftmann@28688
|
705 |
and translate_app thy algbr funcgr thm ((c, ty), ts) = case Code.get_case_data thy c
|
haftmann@24918
|
706 |
of SOME (n, cases) => let val i = 1 + (if null cases then 1 else length cases) in
|
haftmann@24918
|
707 |
if length ts < i then
|
haftmann@24918
|
708 |
let
|
haftmann@24918
|
709 |
val k = length ts;
|
haftmann@24918
|
710 |
val tys = (curry Library.take (i - k) o curry Library.drop k o fst o strip_type) ty;
|
haftmann@24918
|
711 |
val ctxt = (fold o fold_aterms)
|
haftmann@24918
|
712 |
(fn Free (v, _) => Name.declare v | _ => I) ts Name.context;
|
haftmann@24918
|
713 |
val vs = Name.names ctxt "a" tys;
|
haftmann@24918
|
714 |
in
|
haftmann@28688
|
715 |
fold_map (translate_typ thy algbr funcgr) tys
|
haftmann@28688
|
716 |
##>> translate_case thy algbr funcgr thm n cases ((c, ty), ts @ map Free vs)
|
haftmann@24918
|
717 |
#>> (fn (tys, t) => map2 (fn (v, _) => pair v) vs tys `|--> t)
|
haftmann@24918
|
718 |
end
|
haftmann@24918
|
719 |
else if length ts > i then
|
haftmann@28688
|
720 |
translate_case thy algbr funcgr thm n cases ((c, ty), Library.take (i, ts))
|
haftmann@28688
|
721 |
##>> fold_map (translate_term thy algbr funcgr thm) (Library.drop (i, ts))
|
haftmann@24918
|
722 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@24918
|
723 |
else
|
haftmann@28688
|
724 |
translate_case thy algbr funcgr thm n cases ((c, ty), ts)
|
haftmann@24918
|
725 |
end
|
haftmann@28688
|
726 |
| NONE => translate_app_default thy algbr funcgr thm ((c, ty), ts);
|
haftmann@24918
|
727 |
|
haftmann@25969
|
728 |
|
haftmann@27103
|
729 |
(* store *)
|
haftmann@27103
|
730 |
|
haftmann@27103
|
731 |
structure Program = CodeDataFun
|
haftmann@27103
|
732 |
(
|
haftmann@28663
|
733 |
type T = naming * program;
|
haftmann@28663
|
734 |
val empty = (empty_naming, Graph.empty);
|
haftmann@28706
|
735 |
fun purge thy cs (naming, program) =
|
haftmann@27609
|
736 |
let
|
haftmann@28706
|
737 |
val names_delete = cs
|
haftmann@28706
|
738 |
|> map_filter (lookup_const naming)
|
haftmann@28706
|
739 |
|> filter (can (Graph.get_node program))
|
haftmann@28706
|
740 |
|> Graph.all_preds program;
|
haftmann@28706
|
741 |
val program' = Graph.del_nodes names_delete program;
|
haftmann@28706
|
742 |
in (naming, program') end;
|
haftmann@27103
|
743 |
);
|
haftmann@27103
|
744 |
|
haftmann@27103
|
745 |
val cached_program = Program.get;
|
haftmann@27103
|
746 |
|
haftmann@28924
|
747 |
fun invoke_generation thy (algebra, funcgr) f name =
|
haftmann@28663
|
748 |
Program.change_yield thy (fn naming_program => (NONE, naming_program)
|
haftmann@28924
|
749 |
|> f thy algebra funcgr name
|
haftmann@28663
|
750 |
|-> (fn name => fn (_, naming_program) => (name, naming_program)));
|
haftmann@27103
|
751 |
|
haftmann@27103
|
752 |
|
haftmann@27103
|
753 |
(* program generation *)
|
haftmann@27103
|
754 |
|
haftmann@27103
|
755 |
fun consts_program thy cs =
|
haftmann@27103
|
756 |
let
|
haftmann@28663
|
757 |
fun project_consts cs (naming, program) =
|
haftmann@27103
|
758 |
let
|
haftmann@27103
|
759 |
val cs_all = Graph.all_succs program cs;
|
haftmann@28663
|
760 |
in (cs, (naming, Graph.subgraph (member (op =) cs_all) program)) end;
|
haftmann@27103
|
761 |
fun generate_consts thy algebra funcgr =
|
haftmann@27103
|
762 |
fold_map (ensure_const thy algebra funcgr);
|
haftmann@27103
|
763 |
in
|
haftmann@28724
|
764 |
invoke_generation thy (Code_Funcgr.make thy cs) generate_consts cs
|
haftmann@27103
|
765 |
|-> project_consts
|
haftmann@27103
|
766 |
end;
|
haftmann@27103
|
767 |
|
haftmann@27103
|
768 |
|
haftmann@27103
|
769 |
(* value evaluation *)
|
haftmann@25969
|
770 |
|
haftmann@24918
|
771 |
fun ensure_value thy algbr funcgr t =
|
haftmann@24918
|
772 |
let
|
haftmann@24918
|
773 |
val ty = fastype_of t;
|
haftmann@24918
|
774 |
val vs = fold_term_types (K (fold_atyps (insert (eq_fst op =)
|
haftmann@24918
|
775 |
o dest_TFree))) t [];
|
haftmann@24918
|
776 |
val stmt_value =
|
haftmann@28688
|
777 |
fold_map (translate_tyvar_sort thy algbr funcgr) vs
|
haftmann@28688
|
778 |
##>> translate_typ thy algbr funcgr ty
|
haftmann@28688
|
779 |
##>> translate_term thy algbr funcgr NONE t
|
haftmann@28663
|
780 |
#>> (fn ((vs, ty), t) => Fun
|
haftmann@28663
|
781 |
(Term.dummy_patternN, ((vs, ty), [(([], t), (Drule.dummy_thm, true))])));
|
haftmann@28663
|
782 |
fun term_value (dep, (naming, program1)) =
|
haftmann@26011
|
783 |
let
|
haftmann@28663
|
784 |
val Fun (_, ((vs, ty), [(([], t), _)])) =
|
haftmann@28663
|
785 |
Graph.get_node program1 Term.dummy_patternN;
|
haftmann@28663
|
786 |
val deps = Graph.imm_succs program1 Term.dummy_patternN;
|
haftmann@28663
|
787 |
val program2 = Graph.del_nodes [Term.dummy_patternN] program1;
|
haftmann@27103
|
788 |
val deps_all = Graph.all_succs program2 deps;
|
haftmann@27103
|
789 |
val program3 = Graph.subgraph (member (op =) deps_all) program2;
|
haftmann@28663
|
790 |
in (((naming, program3), (((vs, ty), t), deps)), (dep, (naming, program2))) end;
|
haftmann@24918
|
791 |
in
|
haftmann@28663
|
792 |
ensure_stmt ((K o K) NONE) pair stmt_value Term.dummy_patternN
|
haftmann@26011
|
793 |
#> snd
|
haftmann@26011
|
794 |
#> term_value
|
haftmann@24918
|
795 |
end;
|
haftmann@24918
|
796 |
|
haftmann@28724
|
797 |
fun eval thy evaluator t =
|
haftmann@27103
|
798 |
let
|
haftmann@28724
|
799 |
val (t', evaluator'') = evaluator t;
|
haftmann@28924
|
800 |
fun evaluator' algebra funcgr =
|
haftmann@27103
|
801 |
let
|
haftmann@28924
|
802 |
val (((naming, program), (vs_ty_t, deps)), _) =
|
haftmann@28924
|
803 |
invoke_generation thy (algebra, funcgr) ensure_value t';
|
haftmann@28724
|
804 |
in evaluator'' naming program vs_ty_t deps end;
|
haftmann@28724
|
805 |
in (t', evaluator') end
|
haftmann@27103
|
806 |
|
haftmann@28724
|
807 |
fun eval_conv thy = Code_Funcgr.eval_conv thy o eval thy;
|
haftmann@28724
|
808 |
fun eval_term thy = Code_Funcgr.eval_term thy o eval thy;
|
haftmann@27103
|
809 |
|
haftmann@24219
|
810 |
end; (*struct*)
|
haftmann@24219
|
811 |
|
haftmann@24219
|
812 |
|
haftmann@28054
|
813 |
structure Basic_Code_Thingol: BASIC_CODE_THINGOL = Code_Thingol;
|