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(* Title: Tools/code/code_thingol.ML
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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 `$$;
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infixr 3 `|=>;
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infixr 3 `|==>;
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signature BASIC_CODE_THINGOL =
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sig
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type vname = string;
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datatype dict =
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DictConst of string * dict list list
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| DictVar of string list * (vname * (int * int));
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datatype itype =
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`%% of string * itype list
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| ITyVar of vname;
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type const = string * ((itype list * dict list list) * itype list (*types of arguments*))
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datatype iterm =
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IConst of const
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| IVar of vname option
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| `$ of iterm * iterm
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| `|=> of (vname option * itype) * iterm
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| ICase of ((iterm * itype) * (iterm * iterm) list) * iterm;
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(*((term, type), [(selector pattern, body term )]), primitive term)*)
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val `$$ : iterm * iterm list -> iterm;
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val `|==> : (vname option * 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 unfold_abs: iterm -> (vname 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 split_pat_abs: iterm -> ((iterm * itype) * iterm) option
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val unfold_pat_abs: iterm -> (iterm * itype) list * iterm
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val unfold_const_app: iterm -> (const * iterm list) option
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val is_IVar: iterm -> bool
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val eta_expand: int -> const * 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 add_constnames: iterm -> string list -> string list
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val add_tyconames: iterm -> string list -> string list
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val fold_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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val ensure_declared_const: theory -> string -> naming -> string * naming
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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 labelled_name: theory -> program -> string -> string
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val group_stmts: theory -> program
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-> ((string * stmt) list * (string * stmt) list
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* ((string * stmt) list * (string * stmt) list)) list
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val expand_eta: theory -> int -> thm -> thm
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val canonize_thms: theory -> thm list -> thm list
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val read_const_exprs: theory -> string list -> string list * string 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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-> (naming -> program -> ((string * sort) list * typscheme) * iterm -> string list -> cterm -> thm)
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-> cterm -> thm
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val eval: theory -> ((term -> term) -> 'a -> 'a)
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-> (naming -> program -> ((string * sort) list * 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, terms **)
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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 * ((itype list * 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 option
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| `$ of iterm * iterm
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| `|=> of (vname option * 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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fun is_IVar (IVar _) = true
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| is_IVar _ = false;
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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 unfold_abs = unfoldr
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(fn op `|=> t => SOME t
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| _ => NONE);
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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_constexprs f =
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let
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fun fold' (IConst c) = f c
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| fold' (IVar _) = I
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| fold' (t1 `$ t2) = fold' t1 #> fold' t2
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| fold' (_ `|=> t) = fold' t
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| fold' (ICase (((t, _), ds), _)) = fold' t
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#> fold (fn (pat, body) => fold' pat #> fold' body) ds
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in fold' end;
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val add_constnames = fold_constexprs (fn (c, _) => insert (op =) c);
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fun add_tycos (tyco `%% tys) = insert (op =) tyco #> fold add_tycos tys
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| add_tycos (ITyVar _) = I;
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val add_tyconames = fold_constexprs (fn (_, ((tys, _), _)) => fold add_tycos tys);
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fun fold_varnames f =
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let
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fun fold_aux add f =
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let
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fun fold_term _ (IConst _) = I
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| fold_term vs (IVar (SOME v)) = if member (op =) vs v then I else f v
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| fold_term _ (IVar NONE) = I
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| fold_term vs (t1 `$ t2) = fold_term vs t1 #> fold_term vs t2
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| fold_term vs ((SOME v, _) `|=> t) = fold_term (insert (op =) v vs) t
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| fold_term vs ((NONE, _) `|=> t) = fold_term vs t
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| fold_term vs (ICase (((t, _), ds), _)) = fold_term vs t #> fold (fold_case vs) ds
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and fold_case vs (p, t) = fold_term (add p vs) t;
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in fold_term [] end;
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fun add t = fold_aux add (insert (op =)) t;
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in fold_aux add f end;
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fun exists_var t v = fold_varnames (fn w => fn b => v = w orelse b) t false;
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fun split_pat_abs ((NONE, ty) `|=> t) = SOME ((IVar NONE, ty), t)
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| split_pat_abs ((SOME v, ty) `|=> t) = SOME (case t
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of ICase (((IVar (SOME w), _), [(p, t')]), _) =>
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if v = w andalso (exists_var p v orelse not (exists_var t' v))
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then ((p, ty), t')
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else ((IVar (SOME v), ty), t)
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| _ => ((IVar (SOME v), ty), t))
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| split_pat_abs _ = NONE;
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val unfold_pat_abs = unfoldr split_pat_abs;
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fun unfold_abs_eta [] t = ([], t)
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| unfold_abs_eta (_ :: tys) (v_ty `|=> t) =
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let
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val (vs_tys, t') = unfold_abs_eta tys t;
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in (v_ty :: vs_tys, t') end
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| unfold_abs_eta tys t =
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let
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val ctxt = fold_varnames Name.declare t Name.context;
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val vs_tys = (map o apfst) SOME (Name.names ctxt "a" tys);
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in (vs_tys, t `$$ map (IVar o fst) vs_tys) end;
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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 = (map o apfst) SOME
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(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 (IVar o fst) vs_tys end;
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fun contains_dictvar t =
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let
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fun cont_dict (DictConst (_, dss)) = (exists o exists) cont_dict dss
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| cont_dict (DictVar _) = true;
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fun cont_term (IConst (_, ((_, dss), _))) = (exists o exists) cont_dict dss
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| cont_term (IVar _) = false
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| cont_term (t1 `$ t2) = cont_term t1 orelse cont_term t2
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| cont_term (_ `|=> t) = cont_term t
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| cont_term (ICase (_, t)) = cont_term t;
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in cont_term t 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
|
haftmann@28706
|
265 |
| NONE => (case Code.get_datatype_of_constr thy c
|
haftmann@28706
|
266 |
of SOME dtco => thyname_of_tyco thy dtco
|
haftmann@28706
|
267 |
| NONE => thyname_of thy (Consts.the_tags (Sign.consts_of thy)) c);
|
haftmann@31036
|
268 |
fun purify_base "op &" = "and"
|
haftmann@31036
|
269 |
| purify_base "op |" = "or"
|
haftmann@31036
|
270 |
| purify_base "op -->" = "implies"
|
haftmann@31036
|
271 |
| purify_base "op :" = "member"
|
haftmann@31036
|
272 |
| purify_base "op =" = "eq"
|
haftmann@31036
|
273 |
| purify_base "*" = "product"
|
haftmann@31036
|
274 |
| purify_base "+" = "sum"
|
haftmann@31036
|
275 |
| purify_base s = Name.desymbolize false s;
|
haftmann@28663
|
276 |
fun namify thy get_basename get_thyname name =
|
haftmann@28663
|
277 |
let
|
haftmann@28663
|
278 |
val prefix = get_thyname thy name;
|
haftmann@31036
|
279 |
val base = (purify_base o get_basename) name;
|
wenzelm@30364
|
280 |
in Long_Name.append prefix base end;
|
haftmann@28663
|
281 |
in
|
haftmann@28663
|
282 |
|
wenzelm@30364
|
283 |
fun namify_class thy = namify thy Long_Name.base_name thyname_of_class;
|
haftmann@28663
|
284 |
fun namify_classrel thy = namify thy (fn (class1, class2) =>
|
wenzelm@30364
|
285 |
Long_Name.base_name class2 ^ "_" ^ Long_Name.base_name class1) (fn thy => thyname_of_class thy o fst);
|
haftmann@28663
|
286 |
(*order fits nicely with composed projections*)
|
haftmann@28688
|
287 |
fun namify_tyco thy "fun" = "Pure.fun"
|
wenzelm@30364
|
288 |
| namify_tyco thy tyco = namify thy Long_Name.base_name thyname_of_tyco tyco;
|
haftmann@28663
|
289 |
fun namify_instance thy = namify thy (fn (class, tyco) =>
|
wenzelm@30364
|
290 |
Long_Name.base_name class ^ "_" ^ Long_Name.base_name tyco) thyname_of_instance;
|
wenzelm@30364
|
291 |
fun namify_const thy = namify thy Long_Name.base_name thyname_of_const;
|
haftmann@28663
|
292 |
|
haftmann@28663
|
293 |
end; (* local *)
|
haftmann@28663
|
294 |
|
haftmann@28663
|
295 |
|
haftmann@28688
|
296 |
(* data *)
|
haftmann@28663
|
297 |
|
haftmann@28663
|
298 |
datatype naming = Naming of {
|
haftmann@28663
|
299 |
class: class Symtab.table * Name.context,
|
haftmann@30636
|
300 |
classrel: string Symreltab.table * Name.context,
|
haftmann@28663
|
301 |
tyco: string Symtab.table * Name.context,
|
haftmann@30636
|
302 |
instance: string Symreltab.table * Name.context,
|
haftmann@28663
|
303 |
const: string Symtab.table * Name.context
|
haftmann@28663
|
304 |
}
|
haftmann@28663
|
305 |
|
haftmann@28663
|
306 |
fun dest_Naming (Naming naming) = naming;
|
haftmann@28663
|
307 |
|
haftmann@28663
|
308 |
val empty_naming = Naming {
|
haftmann@28663
|
309 |
class = (Symtab.empty, Name.context),
|
haftmann@30636
|
310 |
classrel = (Symreltab.empty, Name.context),
|
haftmann@28663
|
311 |
tyco = (Symtab.empty, Name.context),
|
haftmann@30636
|
312 |
instance = (Symreltab.empty, Name.context),
|
haftmann@28663
|
313 |
const = (Symtab.empty, Name.context)
|
haftmann@28663
|
314 |
};
|
haftmann@28663
|
315 |
|
haftmann@28663
|
316 |
local
|
haftmann@28663
|
317 |
fun mk_naming (class, classrel, tyco, instance, const) =
|
haftmann@28663
|
318 |
Naming { class = class, classrel = classrel,
|
haftmann@28663
|
319 |
tyco = tyco, instance = instance, const = const };
|
haftmann@28663
|
320 |
fun map_naming f (Naming { class, classrel, tyco, instance, const }) =
|
haftmann@28663
|
321 |
mk_naming (f (class, classrel, tyco, instance, const));
|
haftmann@28663
|
322 |
in
|
haftmann@28663
|
323 |
fun map_class f = map_naming
|
haftmann@28663
|
324 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
325 |
(f class, classrel, tyco, inst, const));
|
haftmann@28663
|
326 |
fun map_classrel f = map_naming
|
haftmann@28663
|
327 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
328 |
(class, f classrel, tyco, inst, const));
|
haftmann@28663
|
329 |
fun map_tyco f = map_naming
|
haftmann@28663
|
330 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
331 |
(class, classrel, f tyco, inst, const));
|
haftmann@28663
|
332 |
fun map_instance f = map_naming
|
haftmann@28663
|
333 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
334 |
(class, classrel, tyco, f inst, const));
|
haftmann@28663
|
335 |
fun map_const f = map_naming
|
haftmann@28663
|
336 |
(fn (class, classrel, tyco, inst, const) =>
|
haftmann@28663
|
337 |
(class, classrel, tyco, inst, f const));
|
haftmann@28663
|
338 |
end; (*local*)
|
haftmann@28663
|
339 |
|
haftmann@28663
|
340 |
fun add_variant update (thing, name) (tab, used) =
|
haftmann@28663
|
341 |
let
|
haftmann@28663
|
342 |
val (name', used') = yield_singleton Name.variants name used;
|
haftmann@28663
|
343 |
val tab' = update (thing, name') tab;
|
haftmann@28663
|
344 |
in (tab', used') end;
|
haftmann@28663
|
345 |
|
haftmann@28663
|
346 |
fun declare thy mapp lookup update namify thing =
|
haftmann@28663
|
347 |
mapp (add_variant update (thing, namify thy thing))
|
haftmann@28663
|
348 |
#> `(fn naming => the (lookup naming thing));
|
haftmann@28663
|
349 |
|
haftmann@28688
|
350 |
|
haftmann@28688
|
351 |
(* lookup and declare *)
|
haftmann@28688
|
352 |
|
haftmann@28688
|
353 |
local
|
haftmann@28688
|
354 |
|
haftmann@28688
|
355 |
val suffix_class = "class";
|
haftmann@28688
|
356 |
val suffix_classrel = "classrel"
|
haftmann@28688
|
357 |
val suffix_tyco = "tyco";
|
haftmann@28688
|
358 |
val suffix_instance = "inst";
|
haftmann@28688
|
359 |
val suffix_const = "const";
|
haftmann@28688
|
360 |
|
haftmann@28688
|
361 |
fun add_suffix nsp NONE = NONE
|
wenzelm@30364
|
362 |
| add_suffix nsp (SOME name) = SOME (Long_Name.append name nsp);
|
haftmann@28688
|
363 |
|
haftmann@28688
|
364 |
in
|
haftmann@28688
|
365 |
|
haftmann@28663
|
366 |
val lookup_class = add_suffix suffix_class
|
haftmann@28663
|
367 |
oo Symtab.lookup o fst o #class o dest_Naming;
|
haftmann@28663
|
368 |
val lookup_classrel = add_suffix suffix_classrel
|
haftmann@30636
|
369 |
oo Symreltab.lookup o fst o #classrel o dest_Naming;
|
haftmann@28663
|
370 |
val lookup_tyco = add_suffix suffix_tyco
|
haftmann@28663
|
371 |
oo Symtab.lookup o fst o #tyco o dest_Naming;
|
haftmann@28663
|
372 |
val lookup_instance = add_suffix suffix_instance
|
haftmann@30636
|
373 |
oo Symreltab.lookup o fst o #instance o dest_Naming;
|
haftmann@28663
|
374 |
val lookup_const = add_suffix suffix_const
|
haftmann@28663
|
375 |
oo Symtab.lookup o fst o #const o dest_Naming;
|
haftmann@28663
|
376 |
|
haftmann@28663
|
377 |
fun declare_class thy = declare thy map_class
|
haftmann@28663
|
378 |
lookup_class Symtab.update_new namify_class;
|
haftmann@28663
|
379 |
fun declare_classrel thy = declare thy map_classrel
|
haftmann@30636
|
380 |
lookup_classrel Symreltab.update_new namify_classrel;
|
haftmann@28663
|
381 |
fun declare_tyco thy = declare thy map_tyco
|
haftmann@28663
|
382 |
lookup_tyco Symtab.update_new namify_tyco;
|
haftmann@28663
|
383 |
fun declare_instance thy = declare thy map_instance
|
haftmann@30636
|
384 |
lookup_instance Symreltab.update_new namify_instance;
|
haftmann@28663
|
385 |
fun declare_const thy = declare thy map_const
|
haftmann@28663
|
386 |
lookup_const Symtab.update_new namify_const;
|
haftmann@28663
|
387 |
|
haftmann@31054
|
388 |
fun ensure_declared_const thy const naming =
|
haftmann@31054
|
389 |
case lookup_const naming const
|
haftmann@31054
|
390 |
of SOME const' => (const', naming)
|
haftmann@31054
|
391 |
| NONE => declare_const thy const naming;
|
haftmann@31054
|
392 |
|
haftmann@28688
|
393 |
val unfold_fun = unfoldr
|
haftmann@28688
|
394 |
(fn "Pure.fun.tyco" `%% [ty1, ty2] => SOME (ty1, ty2)
|
haftmann@28688
|
395 |
| _ => NONE); (*depends on suffix_tyco and namify_tyco!*)
|
haftmann@28688
|
396 |
|
haftmann@28688
|
397 |
end; (* local *)
|
haftmann@28688
|
398 |
|
haftmann@24219
|
399 |
|
haftmann@32353
|
400 |
(** technical transformations of code equations **)
|
haftmann@32353
|
401 |
|
haftmann@32353
|
402 |
fun expand_eta thy k thm =
|
haftmann@32353
|
403 |
let
|
haftmann@32353
|
404 |
val (lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm;
|
haftmann@32353
|
405 |
val (head, args) = strip_comb lhs;
|
haftmann@32353
|
406 |
val l = if k = ~1
|
haftmann@32353
|
407 |
then (length o fst o strip_abs) rhs
|
haftmann@32353
|
408 |
else Int.max (0, k - length args);
|
haftmann@32353
|
409 |
val (raw_vars, _) = Term.strip_abs_eta l rhs;
|
haftmann@32353
|
410 |
val vars = burrow_fst (Name.variant_list (map (fst o fst) (Term.add_vars lhs [])))
|
haftmann@32353
|
411 |
raw_vars;
|
haftmann@32353
|
412 |
fun expand (v, ty) thm = Drule.fun_cong_rule thm
|
haftmann@32353
|
413 |
(Thm.cterm_of thy (Var ((v, 0), ty)));
|
haftmann@32353
|
414 |
in
|
haftmann@32353
|
415 |
thm
|
haftmann@32353
|
416 |
|> fold expand vars
|
haftmann@32353
|
417 |
|> Conv.fconv_rule Drule.beta_eta_conversion
|
haftmann@32353
|
418 |
end;
|
haftmann@32353
|
419 |
|
haftmann@32353
|
420 |
fun same_arity thy thms =
|
haftmann@32353
|
421 |
let
|
haftmann@32353
|
422 |
val num_args_of = length o snd o strip_comb o fst o Logic.dest_equals;
|
haftmann@32353
|
423 |
val k = fold (curry Int.max o num_args_of o Thm.prop_of) thms 0;
|
haftmann@32353
|
424 |
in map (expand_eta thy k) thms end;
|
haftmann@32353
|
425 |
|
haftmann@32353
|
426 |
fun mk_desymbolization pre post mk vs =
|
haftmann@32353
|
427 |
let
|
haftmann@32353
|
428 |
val names = map (pre o fst o fst) vs
|
haftmann@32353
|
429 |
|> map (Name.desymbolize false)
|
haftmann@32353
|
430 |
|> Name.variant_list []
|
haftmann@32353
|
431 |
|> map post;
|
haftmann@32353
|
432 |
in map_filter (fn (((v, i), x), v') =>
|
haftmann@32353
|
433 |
if v = v' andalso i = 0 then NONE
|
haftmann@32353
|
434 |
else SOME (((v, i), x), mk ((v', 0), x))) (vs ~~ names)
|
haftmann@32353
|
435 |
end;
|
haftmann@32353
|
436 |
|
haftmann@32353
|
437 |
fun desymbolize_tvars thy thms =
|
haftmann@32353
|
438 |
let
|
haftmann@32353
|
439 |
val tvs = fold (Term.add_tvars o Thm.prop_of) thms [];
|
haftmann@32353
|
440 |
val tvar_subst = mk_desymbolization (unprefix "'") (prefix "'") TVar tvs;
|
haftmann@32353
|
441 |
in map (Thm.certify_instantiate (tvar_subst, [])) thms end;
|
haftmann@32353
|
442 |
|
haftmann@32353
|
443 |
fun desymbolize_vars thy thm =
|
haftmann@32353
|
444 |
let
|
haftmann@32353
|
445 |
val vs = Term.add_vars (Thm.prop_of thm) [];
|
haftmann@32353
|
446 |
val var_subst = mk_desymbolization I I Var vs;
|
haftmann@32353
|
447 |
in Thm.certify_instantiate ([], var_subst) thm end;
|
haftmann@32353
|
448 |
|
haftmann@32928
|
449 |
fun canonize_thms thy = map (Thm.transfer thy)
|
haftmann@32928
|
450 |
#> Code.same_typscheme thy #> desymbolize_tvars thy
|
haftmann@32928
|
451 |
#> same_arity thy #> map (desymbolize_vars thy);
|
haftmann@32353
|
452 |
|
haftmann@32353
|
453 |
|
haftmann@27103
|
454 |
(** statements, abstract programs **)
|
haftmann@24219
|
455 |
|
haftmann@24219
|
456 |
type typscheme = (vname * sort) list * itype;
|
haftmann@24918
|
457 |
datatype stmt =
|
haftmann@27024
|
458 |
NoStmt
|
haftmann@28663
|
459 |
| Fun of string * (typscheme * ((iterm list * iterm) * (thm * bool)) list)
|
haftmann@28663
|
460 |
| Datatype of string * ((vname * sort) list * (string * itype list) list)
|
haftmann@28663
|
461 |
| Datatypecons of string * string
|
haftmann@28663
|
462 |
| Class of class * (vname * ((class * string) list * (string * itype) list))
|
haftmann@24219
|
463 |
| Classrel of class * class
|
haftmann@28663
|
464 |
| Classparam of string * class
|
haftmann@24219
|
465 |
| Classinst of (class * (string * (vname * sort) list))
|
haftmann@24219
|
466 |
* ((class * (string * (string * dict list list))) list
|
haftmann@28350
|
467 |
* ((string * const) * (thm * bool)) list);
|
haftmann@24219
|
468 |
|
haftmann@27103
|
469 |
type program = stmt Graph.T;
|
haftmann@24219
|
470 |
|
haftmann@27103
|
471 |
fun empty_funs program =
|
haftmann@28663
|
472 |
Graph.fold (fn (name, (Fun (c, (_, [])), _)) => cons c
|
haftmann@27103
|
473 |
| _ => I) program [];
|
haftmann@24219
|
474 |
|
haftmann@27711
|
475 |
fun map_terms_bottom_up f (t as IConst _) = f t
|
haftmann@27711
|
476 |
| map_terms_bottom_up f (t as IVar _) = f t
|
haftmann@27711
|
477 |
| map_terms_bottom_up f (t1 `$ t2) = f
|
haftmann@27711
|
478 |
(map_terms_bottom_up f t1 `$ map_terms_bottom_up f t2)
|
haftmann@31724
|
479 |
| map_terms_bottom_up f ((v, ty) `|=> t) = f
|
haftmann@31724
|
480 |
((v, ty) `|=> map_terms_bottom_up f t)
|
haftmann@27711
|
481 |
| map_terms_bottom_up f (ICase (((t, ty), ps), t0)) = f
|
haftmann@27711
|
482 |
(ICase (((map_terms_bottom_up f t, ty), (map o pairself)
|
haftmann@27711
|
483 |
(map_terms_bottom_up f) ps), map_terms_bottom_up f t0));
|
haftmann@27711
|
484 |
|
haftmann@27711
|
485 |
fun map_terms_stmt f NoStmt = NoStmt
|
haftmann@28663
|
486 |
| map_terms_stmt f (Fun (c, (tysm, eqs))) = Fun (c, (tysm, (map o apfst)
|
haftmann@28663
|
487 |
(fn (ts, t) => (map f ts, f t)) eqs))
|
haftmann@27711
|
488 |
| map_terms_stmt f (stmt as Datatype _) = stmt
|
haftmann@27711
|
489 |
| map_terms_stmt f (stmt as Datatypecons _) = stmt
|
haftmann@27711
|
490 |
| map_terms_stmt f (stmt as Class _) = stmt
|
haftmann@27711
|
491 |
| map_terms_stmt f (stmt as Classrel _) = stmt
|
haftmann@27711
|
492 |
| map_terms_stmt f (stmt as Classparam _) = stmt
|
haftmann@27711
|
493 |
| map_terms_stmt f (Classinst (arity, (superarities, classparms))) =
|
haftmann@27711
|
494 |
Classinst (arity, (superarities, (map o apfst o apsnd) (fn const =>
|
haftmann@27711
|
495 |
case f (IConst const) of IConst const' => const') classparms));
|
haftmann@27711
|
496 |
|
haftmann@27103
|
497 |
fun is_cons program name = case Graph.get_node program name
|
haftmann@24219
|
498 |
of Datatypecons _ => true
|
haftmann@24219
|
499 |
| _ => false;
|
haftmann@24219
|
500 |
|
haftmann@27103
|
501 |
fun contr_classparam_typs program name = case Graph.get_node program name
|
haftmann@28663
|
502 |
of Classparam (_, class) => let
|
haftmann@28663
|
503 |
val Class (_, (_, (_, params))) = Graph.get_node program class;
|
haftmann@25621
|
504 |
val SOME ty = AList.lookup (op =) params name;
|
haftmann@25621
|
505 |
val (tys, res_ty) = unfold_fun ty;
|
haftmann@25621
|
506 |
fun no_tyvar (_ `%% tys) = forall no_tyvar tys
|
haftmann@25621
|
507 |
| no_tyvar (ITyVar _) = false;
|
haftmann@25621
|
508 |
in if no_tyvar res_ty
|
haftmann@25621
|
509 |
then map (fn ty => if no_tyvar ty then NONE else SOME ty) tys
|
haftmann@25621
|
510 |
else []
|
haftmann@25621
|
511 |
end
|
haftmann@25621
|
512 |
| _ => [];
|
haftmann@25621
|
513 |
|
haftmann@32895
|
514 |
fun labelled_name thy program name = case Graph.get_node program name
|
haftmann@32895
|
515 |
of Fun (c, _) => quote (Code.string_of_const thy c)
|
haftmann@32895
|
516 |
| Datatype (tyco, _) => "type " ^ quote (Sign.extern_type thy tyco)
|
haftmann@32895
|
517 |
| Datatypecons (c, _) => quote (Code.string_of_const thy c)
|
haftmann@32895
|
518 |
| Class (class, _) => "class " ^ quote (Sign.extern_class thy class)
|
haftmann@32895
|
519 |
| Classrel (sub, super) => let
|
haftmann@32895
|
520 |
val Class (sub, _) = Graph.get_node program sub
|
haftmann@32895
|
521 |
val Class (super, _) = Graph.get_node program super
|
haftmann@32895
|
522 |
in quote (Sign.extern_class thy sub ^ " < " ^ Sign.extern_class thy super) end
|
haftmann@32895
|
523 |
| Classparam (c, _) => quote (Code.string_of_const thy c)
|
haftmann@32895
|
524 |
| Classinst ((class, (tyco, _)), _) => let
|
haftmann@32895
|
525 |
val Class (class, _) = Graph.get_node program class
|
haftmann@32895
|
526 |
val Datatype (tyco, _) = Graph.get_node program tyco
|
haftmann@32895
|
527 |
in quote (Sign.extern_type thy tyco ^ " :: " ^ Sign.extern_class thy class) end
|
haftmann@32895
|
528 |
|
haftmann@32895
|
529 |
fun group_stmts thy program =
|
haftmann@32895
|
530 |
let
|
haftmann@32895
|
531 |
fun is_fun (_, Fun _) = true | is_fun _ = false;
|
haftmann@32895
|
532 |
fun is_datatypecons (_, Datatypecons _) = true | is_datatypecons _ = false;
|
haftmann@32895
|
533 |
fun is_datatype (_, Datatype _) = true | is_datatype _ = false;
|
haftmann@32895
|
534 |
fun is_class (_, Class _) = true | is_class _ = false;
|
haftmann@32895
|
535 |
fun is_classrel (_, Classrel _) = true | is_classrel _ = false;
|
haftmann@32895
|
536 |
fun is_classparam (_, Classparam _) = true | is_classparam _ = false;
|
haftmann@32895
|
537 |
fun is_classinst (_, Classinst _) = true | is_classinst _ = false;
|
haftmann@32895
|
538 |
fun group stmts =
|
haftmann@32895
|
539 |
if forall (is_datatypecons orf is_datatype) stmts
|
haftmann@32895
|
540 |
then (filter is_datatype stmts, [], ([], []))
|
haftmann@32895
|
541 |
else if forall (is_class orf is_classrel orf is_classparam) stmts
|
haftmann@32895
|
542 |
then ([], filter is_class stmts, ([], []))
|
haftmann@32895
|
543 |
else if forall (is_fun orf is_classinst) stmts
|
haftmann@32895
|
544 |
then ([], [], List.partition is_fun stmts)
|
haftmann@32895
|
545 |
else error ("Illegal mutual dependencies: " ^
|
haftmann@32895
|
546 |
(commas o map (labelled_name thy program o fst)) stmts)
|
haftmann@32895
|
547 |
in
|
haftmann@32895
|
548 |
rev (Graph.strong_conn program)
|
haftmann@32895
|
549 |
|> map (AList.make (Graph.get_node program))
|
haftmann@32895
|
550 |
|> map group
|
haftmann@32895
|
551 |
end;
|
haftmann@32895
|
552 |
|
haftmann@24219
|
553 |
|
haftmann@27103
|
554 |
(** translation kernel **)
|
haftmann@24219
|
555 |
|
haftmann@28724
|
556 |
(* generic mechanisms *)
|
haftmann@28724
|
557 |
|
haftmann@28663
|
558 |
fun ensure_stmt lookup declare generate thing (dep, (naming, program)) =
|
haftmann@24219
|
559 |
let
|
haftmann@28706
|
560 |
fun add_dep name = case dep of NONE => I
|
haftmann@28706
|
561 |
| SOME dep => Graph.add_edge (dep, name);
|
haftmann@28706
|
562 |
val (name, naming') = case lookup naming thing
|
haftmann@28706
|
563 |
of SOME name => (name, naming)
|
haftmann@28706
|
564 |
| NONE => declare thing naming;
|
haftmann@28706
|
565 |
in case try (Graph.get_node program) name
|
haftmann@28706
|
566 |
of SOME stmt => program
|
haftmann@28663
|
567 |
|> add_dep name
|
haftmann@28706
|
568 |
|> pair naming'
|
haftmann@28663
|
569 |
|> pair dep
|
haftmann@28663
|
570 |
|> pair name
|
haftmann@28706
|
571 |
| NONE => program
|
haftmann@28706
|
572 |
|> Graph.default_node (name, NoStmt)
|
haftmann@28706
|
573 |
|> add_dep name
|
haftmann@28706
|
574 |
|> pair naming'
|
haftmann@28706
|
575 |
|> curry generate (SOME name)
|
haftmann@28706
|
576 |
||> snd
|
haftmann@28706
|
577 |
|-> (fn stmt => (apsnd o Graph.map_node name) (K stmt))
|
haftmann@28706
|
578 |
|> pair dep
|
haftmann@28706
|
579 |
|> pair name
|
haftmann@24219
|
580 |
end;
|
haftmann@24219
|
581 |
|
haftmann@26972
|
582 |
fun not_wellsorted thy thm ty sort e =
|
haftmann@26972
|
583 |
let
|
haftmann@26972
|
584 |
val err_class = Sorts.class_error (Syntax.pp_global thy) e;
|
haftmann@26972
|
585 |
val err_thm = case thm
|
wenzelm@32111
|
586 |
of SOME thm => "\n(in code equation " ^ Display.string_of_thm_global thy thm ^ ")" | NONE => "";
|
haftmann@26972
|
587 |
val err_typ = "Type " ^ Syntax.string_of_typ_global thy ty ^ " not of sort "
|
haftmann@26972
|
588 |
^ Syntax.string_of_sort_global thy sort;
|
haftmann@26972
|
589 |
in error ("Wellsortedness error" ^ err_thm ^ ":\n" ^ err_typ ^ "\n" ^ err_class) end;
|
haftmann@26972
|
590 |
|
haftmann@28724
|
591 |
|
haftmann@28724
|
592 |
(* translation *)
|
haftmann@28724
|
593 |
|
haftmann@32873
|
594 |
fun ensure_tyco thy algbr eqngr tyco =
|
haftmann@30932
|
595 |
let
|
haftmann@30932
|
596 |
val stmt_datatype =
|
haftmann@30932
|
597 |
let
|
haftmann@30932
|
598 |
val (vs, cos) = Code.get_datatype thy tyco;
|
haftmann@30932
|
599 |
in
|
haftmann@32873
|
600 |
fold_map (translate_tyvar_sort thy algbr eqngr) vs
|
haftmann@30932
|
601 |
##>> fold_map (fn (c, tys) =>
|
haftmann@32873
|
602 |
ensure_const thy algbr eqngr c
|
haftmann@32873
|
603 |
##>> fold_map (translate_typ thy algbr eqngr) tys) cos
|
haftmann@30932
|
604 |
#>> (fn info => Datatype (tyco, info))
|
haftmann@30932
|
605 |
end;
|
haftmann@30932
|
606 |
in ensure_stmt lookup_tyco (declare_tyco thy) stmt_datatype tyco end
|
haftmann@32873
|
607 |
and ensure_const thy algbr eqngr c =
|
haftmann@30932
|
608 |
let
|
haftmann@30932
|
609 |
fun stmt_datatypecons tyco =
|
haftmann@32873
|
610 |
ensure_tyco thy algbr eqngr tyco
|
haftmann@30932
|
611 |
#>> (fn tyco => Datatypecons (c, tyco));
|
haftmann@30932
|
612 |
fun stmt_classparam class =
|
haftmann@32873
|
613 |
ensure_class thy algbr eqngr class
|
haftmann@30932
|
614 |
#>> (fn class => Classparam (c, class));
|
haftmann@32872
|
615 |
fun stmt_fun raw_eqns =
|
haftmann@32872
|
616 |
let
|
haftmann@32928
|
617 |
val eqns = burrow_fst (canonize_thms thy) raw_eqns;
|
haftmann@32873
|
618 |
val (vs, ty) = Code.typscheme_eqns thy c (map fst eqns);
|
haftmann@32872
|
619 |
in
|
haftmann@32873
|
620 |
fold_map (translate_tyvar_sort thy algbr eqngr) vs
|
haftmann@32873
|
621 |
##>> translate_typ thy algbr eqngr ty
|
haftmann@32873
|
622 |
##>> fold_map (translate_eqn thy algbr eqngr) eqns
|
haftmann@32872
|
623 |
#>> (fn info => Fun (c, info))
|
haftmann@32872
|
624 |
end;
|
haftmann@30932
|
625 |
val stmt_const = case Code.get_datatype_of_constr thy c
|
haftmann@30932
|
626 |
of SOME tyco => stmt_datatypecons tyco
|
haftmann@30932
|
627 |
| NONE => (case AxClass.class_of_param thy c
|
haftmann@30932
|
628 |
of SOME class => stmt_classparam class
|
haftmann@32873
|
629 |
| NONE => stmt_fun (Code_Preproc.eqns eqngr c))
|
haftmann@30932
|
630 |
in ensure_stmt lookup_const (declare_const thy) stmt_const c end
|
haftmann@32873
|
631 |
and ensure_class thy (algbr as (_, algebra)) eqngr class =
|
haftmann@24918
|
632 |
let
|
haftmann@28924
|
633 |
val superclasses = (Sorts.minimize_sort algebra o Sorts.super_classes algebra) class;
|
wenzelm@24969
|
634 |
val cs = #params (AxClass.get_info thy class);
|
haftmann@24918
|
635 |
val stmt_class =
|
haftmann@32873
|
636 |
fold_map (fn superclass => ensure_class thy algbr eqngr superclass
|
haftmann@32873
|
637 |
##>> ensure_classrel thy algbr eqngr (class, superclass)) superclasses
|
haftmann@32873
|
638 |
##>> fold_map (fn (c, ty) => ensure_const thy algbr eqngr c
|
haftmann@32873
|
639 |
##>> translate_typ thy algbr eqngr ty) cs
|
haftmann@28663
|
640 |
#>> (fn info => Class (class, (unprefix "'" Name.aT, info)))
|
haftmann@28663
|
641 |
in ensure_stmt lookup_class (declare_class thy) stmt_class class end
|
haftmann@32873
|
642 |
and ensure_classrel thy algbr eqngr (subclass, superclass) =
|
haftmann@24918
|
643 |
let
|
haftmann@24918
|
644 |
val stmt_classrel =
|
haftmann@32873
|
645 |
ensure_class thy algbr eqngr subclass
|
haftmann@32873
|
646 |
##>> ensure_class thy algbr eqngr superclass
|
haftmann@24918
|
647 |
#>> Classrel;
|
haftmann@28663
|
648 |
in ensure_stmt lookup_classrel (declare_classrel thy) stmt_classrel (subclass, superclass) end
|
haftmann@32873
|
649 |
and ensure_inst thy (algbr as (_, algebra)) eqngr (class, tyco) =
|
haftmann@24918
|
650 |
let
|
haftmann@28924
|
651 |
val superclasses = (Sorts.minimize_sort algebra o Sorts.super_classes algebra) class;
|
wenzelm@24969
|
652 |
val classparams = these (try (#params o AxClass.get_info thy) class);
|
haftmann@24918
|
653 |
val vs = Name.names Name.context "'a" (Sorts.mg_domain algebra tyco [class]);
|
haftmann@24918
|
654 |
val sorts' = Sorts.mg_domain (Sign.classes_of thy) tyco [class];
|
haftmann@24918
|
655 |
val vs' = map2 (fn (v, sort1) => fn sort2 => (v,
|
haftmann@24918
|
656 |
Sorts.inter_sort (Sign.classes_of thy) (sort1, sort2))) vs sorts';
|
haftmann@24918
|
657 |
val arity_typ = Type (tyco, map TFree vs);
|
haftmann@24918
|
658 |
val arity_typ' = Type (tyco, map (fn (v, sort) => TVar ((v, 0), sort)) vs');
|
haftmann@28688
|
659 |
fun translate_superarity superclass =
|
haftmann@32873
|
660 |
ensure_class thy algbr eqngr superclass
|
haftmann@32873
|
661 |
##>> ensure_classrel thy algbr eqngr (class, superclass)
|
haftmann@32873
|
662 |
##>> translate_dicts thy algbr eqngr NONE (arity_typ, [superclass])
|
haftmann@24918
|
663 |
#>> (fn ((superclass, classrel), [DictConst (inst, dss)]) =>
|
haftmann@24918
|
664 |
(superclass, (classrel, (inst, dss))));
|
haftmann@28688
|
665 |
fun translate_classparam_inst (c, ty) =
|
haftmann@24918
|
666 |
let
|
haftmann@24918
|
667 |
val c_inst = Const (c, map_type_tfree (K arity_typ') ty);
|
haftmann@25597
|
668 |
val thm = AxClass.unoverload_conv thy (Thm.cterm_of thy c_inst);
|
haftmann@24918
|
669 |
val c_ty = (apsnd Logic.unvarifyT o dest_Const o snd
|
haftmann@24918
|
670 |
o Logic.dest_equals o Thm.prop_of) thm;
|
haftmann@24918
|
671 |
in
|
haftmann@32873
|
672 |
ensure_const thy algbr eqngr c
|
haftmann@32873
|
673 |
##>> translate_const thy algbr eqngr (SOME thm) c_ty
|
haftmann@28350
|
674 |
#>> (fn (c, IConst c_inst) => ((c, c_inst), (thm, true)))
|
haftmann@24918
|
675 |
end;
|
haftmann@24918
|
676 |
val stmt_inst =
|
haftmann@32873
|
677 |
ensure_class thy algbr eqngr class
|
haftmann@32873
|
678 |
##>> ensure_tyco thy algbr eqngr tyco
|
haftmann@32873
|
679 |
##>> fold_map (translate_tyvar_sort thy algbr eqngr) vs
|
haftmann@28688
|
680 |
##>> fold_map translate_superarity superclasses
|
haftmann@28688
|
681 |
##>> fold_map translate_classparam_inst classparams
|
haftmann@24918
|
682 |
#>> (fn ((((class, tyco), arity), superarities), classparams) =>
|
haftmann@24918
|
683 |
Classinst ((class, (tyco, arity)), (superarities, classparams)));
|
haftmann@28663
|
684 |
in ensure_stmt lookup_instance (declare_instance thy) stmt_inst (class, tyco) end
|
haftmann@32873
|
685 |
and translate_typ thy algbr eqngr (TFree (v, _)) =
|
haftmann@30932
|
686 |
pair (ITyVar (unprefix "'" v))
|
haftmann@32873
|
687 |
| translate_typ thy algbr eqngr (Type (tyco, tys)) =
|
haftmann@32873
|
688 |
ensure_tyco thy algbr eqngr tyco
|
haftmann@32873
|
689 |
##>> fold_map (translate_typ thy algbr eqngr) tys
|
haftmann@30932
|
690 |
#>> (fn (tyco, tys) => tyco `%% tys)
|
haftmann@32873
|
691 |
and translate_term thy algbr eqngr thm (Const (c, ty)) =
|
haftmann@32873
|
692 |
translate_app thy algbr eqngr thm ((c, ty), [])
|
haftmann@32873
|
693 |
| translate_term thy algbr eqngr thm (Free (v, _)) =
|
haftmann@31889
|
694 |
pair (IVar (SOME v))
|
haftmann@32873
|
695 |
| translate_term thy algbr eqngr thm (Abs (v, ty, t)) =
|
haftmann@24918
|
696 |
let
|
haftmann@32270
|
697 |
val (v', t') = Syntax.variant_abs (Name.desymbolize false v, ty, t);
|
haftmann@32270
|
698 |
val v'' = if member (op =) (Term.add_free_names t' []) v'
|
haftmann@32270
|
699 |
then SOME v' else NONE
|
haftmann@24918
|
700 |
in
|
haftmann@32873
|
701 |
translate_typ thy algbr eqngr ty
|
haftmann@32873
|
702 |
##>> translate_term thy algbr eqngr thm t'
|
haftmann@32270
|
703 |
#>> (fn (ty, t) => (v'', ty) `|=> t)
|
haftmann@24918
|
704 |
end
|
haftmann@32873
|
705 |
| translate_term thy algbr eqngr thm (t as _ $ _) =
|
haftmann@24918
|
706 |
case strip_comb t
|
haftmann@24918
|
707 |
of (Const (c, ty), ts) =>
|
haftmann@32873
|
708 |
translate_app thy algbr eqngr thm ((c, ty), ts)
|
haftmann@24918
|
709 |
| (t', ts) =>
|
haftmann@32873
|
710 |
translate_term thy algbr eqngr thm t'
|
haftmann@32873
|
711 |
##>> fold_map (translate_term thy algbr eqngr thm) ts
|
haftmann@24918
|
712 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@32873
|
713 |
and translate_eqn thy algbr eqngr (thm, proper) =
|
haftmann@30932
|
714 |
let
|
haftmann@30932
|
715 |
val (args, rhs) = (apfst (snd o strip_comb) o Logic.dest_equals
|
haftmann@30932
|
716 |
o Logic.unvarify o prop_of) thm;
|
haftmann@30932
|
717 |
in
|
haftmann@32873
|
718 |
fold_map (translate_term thy algbr eqngr (SOME thm)) args
|
haftmann@32873
|
719 |
##>> translate_term thy algbr eqngr (SOME thm) rhs
|
haftmann@31088
|
720 |
#>> rpair (thm, proper)
|
haftmann@30932
|
721 |
end
|
haftmann@32873
|
722 |
and translate_const thy algbr eqngr thm (c, ty) =
|
haftmann@26972
|
723 |
let
|
haftmann@26972
|
724 |
val tys = Sign.const_typargs thy (c, ty);
|
haftmann@32873
|
725 |
val sorts = Code_Preproc.sortargs eqngr c;
|
haftmann@26972
|
726 |
val tys_args = (fst o Term.strip_type) ty;
|
haftmann@26972
|
727 |
in
|
haftmann@32873
|
728 |
ensure_const thy algbr eqngr c
|
haftmann@32873
|
729 |
##>> fold_map (translate_typ thy algbr eqngr) tys
|
haftmann@32873
|
730 |
##>> fold_map (translate_dicts thy algbr eqngr thm) (tys ~~ sorts)
|
haftmann@32873
|
731 |
##>> fold_map (translate_typ thy algbr eqngr) tys_args
|
haftmann@31049
|
732 |
#>> (fn (((c, tys), iss), tys_args) => IConst (c, ((tys, iss), tys_args)))
|
haftmann@26972
|
733 |
end
|
haftmann@32873
|
734 |
and translate_app_const thy algbr eqngr thm (c_ty, ts) =
|
haftmann@32873
|
735 |
translate_const thy algbr eqngr thm c_ty
|
haftmann@32873
|
736 |
##>> fold_map (translate_term thy algbr eqngr thm) ts
|
haftmann@24918
|
737 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@32873
|
738 |
and translate_case thy algbr eqngr thm (num_args, (t_pos, case_pats)) (c_ty, ts) =
|
haftmann@24918
|
739 |
let
|
haftmann@31892
|
740 |
fun arg_types num_args ty = (fst o chop num_args o fst o strip_type) ty;
|
haftmann@31892
|
741 |
val tys = arg_types num_args (snd c_ty);
|
haftmann@29889
|
742 |
val ty = nth tys t_pos;
|
haftmann@31957
|
743 |
fun mk_constr c t = let val n = Code.args_number thy c
|
haftmann@31957
|
744 |
in ((c, arg_types n (fastype_of t) ---> ty), n) end;
|
haftmann@31892
|
745 |
val constrs = if null case_pats then []
|
haftmann@31892
|
746 |
else map2 mk_constr case_pats (nth_drop t_pos ts);
|
haftmann@31892
|
747 |
fun casify naming constrs ty ts =
|
haftmann@24918
|
748 |
let
|
haftmann@31934
|
749 |
val undefineds = map_filter (lookup_const naming) (Code.undefineds thy);
|
haftmann@31934
|
750 |
fun collapse_clause vs_map ts body =
|
haftmann@31934
|
751 |
let
|
haftmann@31934
|
752 |
in case body
|
haftmann@31934
|
753 |
of IConst (c, _) => if member (op =) undefineds c
|
haftmann@31934
|
754 |
then []
|
haftmann@31934
|
755 |
else [(ts, body)]
|
haftmann@31934
|
756 |
| ICase (((IVar (SOME v), _), subclauses), _) =>
|
haftmann@31934
|
757 |
if forall (fn (pat', body') => exists_var pat' v
|
haftmann@31934
|
758 |
orelse not (exists_var body' v)) subclauses
|
haftmann@31934
|
759 |
then case AList.lookup (op =) vs_map v
|
haftmann@31934
|
760 |
of SOME i => maps (fn (pat', body') =>
|
haftmann@31934
|
761 |
collapse_clause (AList.delete (op =) v vs_map)
|
haftmann@31934
|
762 |
(nth_map i (K pat') ts) body') subclauses
|
haftmann@31934
|
763 |
| NONE => [(ts, body)]
|
haftmann@31934
|
764 |
else [(ts, body)]
|
haftmann@31934
|
765 |
| _ => [(ts, body)]
|
haftmann@31934
|
766 |
end;
|
haftmann@31934
|
767 |
fun mk_clause mk tys t =
|
haftmann@31934
|
768 |
let
|
haftmann@31934
|
769 |
val (vs, body) = unfold_abs_eta tys t;
|
haftmann@31934
|
770 |
val vs_map = fold_index (fn (i, (SOME v, _)) => cons (v, i) | _ => I) vs [];
|
haftmann@31934
|
771 |
val ts = map (IVar o fst) vs;
|
haftmann@31934
|
772 |
in map mk (collapse_clause vs_map ts body) end;
|
haftmann@31892
|
773 |
val t = nth ts t_pos;
|
haftmann@31892
|
774 |
val ts_clause = nth_drop t_pos ts;
|
haftmann@31934
|
775 |
val clauses = if null case_pats
|
haftmann@31934
|
776 |
then mk_clause (fn ([t], body) => (t, body)) [ty] (the_single ts_clause)
|
haftmann@31934
|
777 |
else maps (fn ((constr as IConst (_, (_, tys)), n), t) =>
|
haftmann@31934
|
778 |
mk_clause (fn (ts, body) => (constr `$$ ts, body)) (curry Library.take n tys) t)
|
haftmann@31934
|
779 |
(constrs ~~ ts_clause);
|
haftmann@31892
|
780 |
in ((t, ty), clauses) end;
|
haftmann@24918
|
781 |
in
|
haftmann@32873
|
782 |
translate_const thy algbr eqngr thm c_ty
|
haftmann@32873
|
783 |
##>> fold_map (fn (constr, n) => translate_const thy algbr eqngr thm constr #>> rpair n) constrs
|
haftmann@32873
|
784 |
##>> translate_typ thy algbr eqngr ty
|
haftmann@32873
|
785 |
##>> fold_map (translate_term thy algbr eqngr thm) ts
|
haftmann@31892
|
786 |
#-> (fn (((t, constrs), ty), ts) =>
|
haftmann@31892
|
787 |
`(fn (_, (naming, _)) => ICase (casify naming constrs ty ts, t `$$ ts)))
|
haftmann@24918
|
788 |
end
|
haftmann@32873
|
789 |
and translate_app_case thy algbr eqngr thm (case_scheme as (num_args, _)) ((c, ty), ts) =
|
haftmann@29910
|
790 |
if length ts < num_args then
|
haftmann@29910
|
791 |
let
|
haftmann@29910
|
792 |
val k = length ts;
|
haftmann@29910
|
793 |
val tys = (curry Library.take (num_args - k) o curry Library.drop k o fst o strip_type) ty;
|
haftmann@29910
|
794 |
val ctxt = (fold o fold_aterms) Term.declare_term_frees ts Name.context;
|
haftmann@29910
|
795 |
val vs = Name.names ctxt "a" tys;
|
haftmann@29910
|
796 |
in
|
haftmann@32873
|
797 |
fold_map (translate_typ thy algbr eqngr) tys
|
haftmann@32873
|
798 |
##>> translate_case thy algbr eqngr thm case_scheme ((c, ty), ts @ map Free vs)
|
haftmann@31888
|
799 |
#>> (fn (tys, t) => map2 (fn (v, _) => pair (SOME v)) vs tys `|==> t)
|
haftmann@29910
|
800 |
end
|
haftmann@29910
|
801 |
else if length ts > num_args then
|
haftmann@32873
|
802 |
translate_case thy algbr eqngr thm case_scheme ((c, ty), Library.take (num_args, ts))
|
haftmann@32873
|
803 |
##>> fold_map (translate_term thy algbr eqngr thm) (Library.drop (num_args, ts))
|
haftmann@29910
|
804 |
#>> (fn (t, ts) => t `$$ ts)
|
haftmann@29910
|
805 |
else
|
haftmann@32873
|
806 |
translate_case thy algbr eqngr thm case_scheme ((c, ty), ts)
|
haftmann@32873
|
807 |
and translate_app thy algbr eqngr thm (c_ty_ts as ((c, _), _)) =
|
haftmann@29910
|
808 |
case Code.get_case_scheme thy c
|
haftmann@32873
|
809 |
of SOME case_scheme => translate_app_case thy algbr eqngr thm case_scheme c_ty_ts
|
haftmann@32873
|
810 |
| NONE => translate_app_const thy algbr eqngr thm c_ty_ts
|
haftmann@32873
|
811 |
and translate_tyvar_sort thy (algbr as (proj_sort, _)) eqngr (v, sort) =
|
haftmann@32873
|
812 |
fold_map (ensure_class thy algbr eqngr) (proj_sort sort)
|
haftmann@30932
|
813 |
#>> (fn sort => (unprefix "'" v, sort))
|
haftmann@32873
|
814 |
and translate_dicts thy (algbr as (proj_sort, algebra)) eqngr thm (ty, sort) =
|
haftmann@30932
|
815 |
let
|
haftmann@30932
|
816 |
datatype typarg =
|
haftmann@30932
|
817 |
Global of (class * string) * typarg list list
|
haftmann@30932
|
818 |
| Local of (class * class) list * (string * (int * sort));
|
haftmann@30932
|
819 |
fun class_relation (Global ((_, tyco), yss), _) class =
|
haftmann@30932
|
820 |
Global ((class, tyco), yss)
|
haftmann@30932
|
821 |
| class_relation (Local (classrels, v), subclass) superclass =
|
haftmann@30932
|
822 |
Local ((subclass, superclass) :: classrels, v);
|
haftmann@30932
|
823 |
fun type_constructor tyco yss class =
|
haftmann@30932
|
824 |
Global ((class, tyco), (map o map) fst yss);
|
haftmann@30932
|
825 |
fun type_variable (TFree (v, sort)) =
|
haftmann@30932
|
826 |
let
|
haftmann@30932
|
827 |
val sort' = proj_sort sort;
|
haftmann@30932
|
828 |
in map_index (fn (n, class) => (Local ([], (v, (n, sort'))), class)) sort' end;
|
wenzelm@32802
|
829 |
val typargs = Sorts.of_sort_derivation algebra
|
haftmann@30932
|
830 |
{class_relation = class_relation, type_constructor = type_constructor,
|
haftmann@30932
|
831 |
type_variable = type_variable} (ty, proj_sort sort)
|
haftmann@30932
|
832 |
handle Sorts.CLASS_ERROR e => not_wellsorted thy thm ty sort e;
|
haftmann@30932
|
833 |
fun mk_dict (Global (inst, yss)) =
|
haftmann@32873
|
834 |
ensure_inst thy algbr eqngr inst
|
haftmann@30932
|
835 |
##>> (fold_map o fold_map) mk_dict yss
|
haftmann@30932
|
836 |
#>> (fn (inst, dss) => DictConst (inst, dss))
|
haftmann@31962
|
837 |
| mk_dict (Local (classrels, (v, (n, sort)))) =
|
haftmann@32873
|
838 |
fold_map (ensure_classrel thy algbr eqngr) classrels
|
haftmann@31962
|
839 |
#>> (fn classrels => DictVar (classrels, (unprefix "'" v, (n, length sort))))
|
haftmann@30932
|
840 |
in fold_map mk_dict typargs end;
|
haftmann@24918
|
841 |
|
haftmann@25969
|
842 |
|
haftmann@27103
|
843 |
(* store *)
|
haftmann@27103
|
844 |
|
haftmann@31962
|
845 |
structure Program = Code_Data_Fun
|
haftmann@27103
|
846 |
(
|
haftmann@28663
|
847 |
type T = naming * program;
|
haftmann@28663
|
848 |
val empty = (empty_naming, Graph.empty);
|
haftmann@28706
|
849 |
fun purge thy cs (naming, program) =
|
haftmann@27609
|
850 |
let
|
haftmann@28706
|
851 |
val names_delete = cs
|
haftmann@28706
|
852 |
|> map_filter (lookup_const naming)
|
haftmann@28706
|
853 |
|> filter (can (Graph.get_node program))
|
haftmann@28706
|
854 |
|> Graph.all_preds program;
|
haftmann@28706
|
855 |
val program' = Graph.del_nodes names_delete program;
|
haftmann@28706
|
856 |
in (naming, program') end;
|
haftmann@27103
|
857 |
);
|
haftmann@27103
|
858 |
|
haftmann@27103
|
859 |
val cached_program = Program.get;
|
haftmann@27103
|
860 |
|
haftmann@32873
|
861 |
fun invoke_generation thy (algebra, eqngr) f name =
|
haftmann@28663
|
862 |
Program.change_yield thy (fn naming_program => (NONE, naming_program)
|
haftmann@32873
|
863 |
|> f thy algebra eqngr name
|
haftmann@28663
|
864 |
|-> (fn name => fn (_, naming_program) => (name, naming_program)));
|
haftmann@27103
|
865 |
|
haftmann@27103
|
866 |
|
haftmann@27103
|
867 |
(* program generation *)
|
haftmann@27103
|
868 |
|
haftmann@27103
|
869 |
fun consts_program thy cs =
|
haftmann@27103
|
870 |
let
|
haftmann@28663
|
871 |
fun project_consts cs (naming, program) =
|
haftmann@27103
|
872 |
let
|
haftmann@27103
|
873 |
val cs_all = Graph.all_succs program cs;
|
haftmann@28663
|
874 |
in (cs, (naming, Graph.subgraph (member (op =) cs_all) program)) end;
|
haftmann@32873
|
875 |
fun generate_consts thy algebra eqngr =
|
haftmann@32873
|
876 |
fold_map (ensure_const thy algebra eqngr);
|
haftmann@27103
|
877 |
in
|
haftmann@31125
|
878 |
invoke_generation thy (Code_Preproc.obtain thy cs []) generate_consts cs
|
haftmann@27103
|
879 |
|-> project_consts
|
haftmann@27103
|
880 |
end;
|
haftmann@27103
|
881 |
|
haftmann@27103
|
882 |
|
haftmann@27103
|
883 |
(* value evaluation *)
|
haftmann@25969
|
884 |
|
haftmann@32873
|
885 |
fun ensure_value thy algbr eqngr t =
|
haftmann@24918
|
886 |
let
|
haftmann@24918
|
887 |
val ty = fastype_of t;
|
haftmann@24918
|
888 |
val vs = fold_term_types (K (fold_atyps (insert (eq_fst op =)
|
haftmann@24918
|
889 |
o dest_TFree))) t [];
|
haftmann@24918
|
890 |
val stmt_value =
|
haftmann@32873
|
891 |
fold_map (translate_tyvar_sort thy algbr eqngr) vs
|
haftmann@32873
|
892 |
##>> translate_typ thy algbr eqngr ty
|
haftmann@32873
|
893 |
##>> translate_term thy algbr eqngr NONE t
|
haftmann@28663
|
894 |
#>> (fn ((vs, ty), t) => Fun
|
haftmann@28663
|
895 |
(Term.dummy_patternN, ((vs, ty), [(([], t), (Drule.dummy_thm, true))])));
|
haftmann@31063
|
896 |
fun term_value (dep, (naming, program1)) =
|
haftmann@26011
|
897 |
let
|
haftmann@30947
|
898 |
val Fun (_, (vs_ty, [(([], t), _)])) =
|
haftmann@28663
|
899 |
Graph.get_node program1 Term.dummy_patternN;
|
haftmann@28663
|
900 |
val deps = Graph.imm_succs program1 Term.dummy_patternN;
|
haftmann@28663
|
901 |
val program2 = Graph.del_nodes [Term.dummy_patternN] program1;
|
haftmann@27103
|
902 |
val deps_all = Graph.all_succs program2 deps;
|
haftmann@27103
|
903 |
val program3 = Graph.subgraph (member (op =) deps_all) program2;
|
haftmann@31063
|
904 |
in (((naming, program3), ((vs_ty, t), deps)), (dep, (naming, program2))) end;
|
haftmann@24918
|
905 |
in
|
haftmann@28663
|
906 |
ensure_stmt ((K o K) NONE) pair stmt_value Term.dummy_patternN
|
haftmann@26011
|
907 |
#> snd
|
haftmann@31063
|
908 |
#> term_value
|
haftmann@24918
|
909 |
end;
|
haftmann@24918
|
910 |
|
haftmann@32873
|
911 |
fun base_evaluator thy evaluator algebra eqngr vs t =
|
haftmann@27103
|
912 |
let
|
haftmann@31063
|
913 |
val (((naming, program), (((vs', ty'), t'), deps)), _) =
|
haftmann@32873
|
914 |
invoke_generation thy (algebra, eqngr) ensure_value t;
|
haftmann@30947
|
915 |
val vs'' = map (fn (v, _) => (v, (the o AList.lookup (op =) vs o prefix "'") v)) vs';
|
haftmann@31063
|
916 |
in evaluator naming program ((vs'', (vs', ty')), t') deps end;
|
haftmann@27103
|
917 |
|
haftmann@32101
|
918 |
fun eval_conv thy = Code_Preproc.eval_conv thy o base_evaluator thy;
|
haftmann@32101
|
919 |
fun eval thy postproc = Code_Preproc.eval thy postproc o base_evaluator thy;
|
haftmann@30942
|
920 |
|
haftmann@30942
|
921 |
|
haftmann@30942
|
922 |
(** diagnostic commands **)
|
haftmann@30942
|
923 |
|
haftmann@31036
|
924 |
fun read_const_exprs thy =
|
haftmann@31036
|
925 |
let
|
haftmann@31036
|
926 |
fun consts_of some_thyname =
|
haftmann@31036
|
927 |
let
|
haftmann@31036
|
928 |
val thy' = case some_thyname
|
haftmann@31036
|
929 |
of SOME thyname => ThyInfo.the_theory thyname thy
|
haftmann@31036
|
930 |
| NONE => thy;
|
haftmann@31036
|
931 |
val cs = Symtab.fold (fn (c, (_, NONE)) => cons c | _ => I)
|
haftmann@31036
|
932 |
((snd o #constants o Consts.dest o #consts o Sign.rep_sg) thy') [];
|
haftmann@31036
|
933 |
fun belongs_here c =
|
haftmann@31036
|
934 |
not (exists (fn thy'' => Sign.declared_const thy'' c) (Theory.parents_of thy'))
|
haftmann@31036
|
935 |
in case some_thyname
|
haftmann@31036
|
936 |
of NONE => cs
|
haftmann@31036
|
937 |
| SOME thyname => filter belongs_here cs
|
haftmann@31036
|
938 |
end;
|
haftmann@31036
|
939 |
fun read_const_expr "*" = ([], consts_of NONE)
|
haftmann@31036
|
940 |
| read_const_expr s = if String.isSuffix ".*" s
|
haftmann@31036
|
941 |
then ([], consts_of (SOME (unsuffix ".*" s)))
|
haftmann@31156
|
942 |
else ([Code.read_const thy s], []);
|
haftmann@31036
|
943 |
in pairself flat o split_list o map read_const_expr end;
|
haftmann@31036
|
944 |
|
haftmann@30942
|
945 |
fun code_depgr thy consts =
|
haftmann@30942
|
946 |
let
|
haftmann@31125
|
947 |
val (_, eqngr) = Code_Preproc.obtain thy consts [];
|
haftmann@30942
|
948 |
val select = Graph.all_succs eqngr consts;
|
haftmann@30942
|
949 |
in
|
haftmann@30942
|
950 |
eqngr
|
haftmann@30942
|
951 |
|> not (null consts) ? Graph.subgraph (member (op =) select)
|
haftmann@30942
|
952 |
|> Graph.map_nodes ((apsnd o map o apfst) (AxClass.overload thy))
|
haftmann@30942
|
953 |
end;
|
haftmann@30942
|
954 |
|
haftmann@31125
|
955 |
fun code_thms thy = Pretty.writeln o Code_Preproc.pretty thy o code_depgr thy;
|
haftmann@30942
|
956 |
|
haftmann@30942
|
957 |
fun code_deps thy consts =
|
haftmann@30942
|
958 |
let
|
haftmann@30942
|
959 |
val eqngr = code_depgr thy consts;
|
haftmann@30942
|
960 |
val constss = Graph.strong_conn eqngr;
|
haftmann@30942
|
961 |
val mapping = Symtab.empty |> fold (fn consts => fold (fn const =>
|
haftmann@30942
|
962 |
Symtab.update (const, consts)) consts) constss;
|
haftmann@30942
|
963 |
fun succs consts = consts
|
haftmann@30942
|
964 |
|> maps (Graph.imm_succs eqngr)
|
haftmann@30942
|
965 |
|> subtract (op =) consts
|
haftmann@30942
|
966 |
|> map (the o Symtab.lookup mapping)
|
haftmann@30942
|
967 |
|> distinct (op =);
|
haftmann@30942
|
968 |
val conn = [] |> fold (fn consts => cons (consts, succs consts)) constss;
|
haftmann@31156
|
969 |
fun namify consts = map (Code.string_of_const thy) consts
|
haftmann@30942
|
970 |
|> commas;
|
haftmann@30942
|
971 |
val prgr = map (fn (consts, constss) =>
|
haftmann@30942
|
972 |
{ name = namify consts, ID = namify consts, dir = "", unfold = true,
|
haftmann@30942
|
973 |
path = "", parents = map namify constss }) conn;
|
haftmann@30942
|
974 |
in Present.display_graph prgr end;
|
haftmann@30942
|
975 |
|
haftmann@30942
|
976 |
local
|
haftmann@30942
|
977 |
|
haftmann@30942
|
978 |
structure P = OuterParse
|
haftmann@30942
|
979 |
and K = OuterKeyword
|
haftmann@30942
|
980 |
|
haftmann@31036
|
981 |
fun code_thms_cmd thy = code_thms thy o op @ o read_const_exprs thy;
|
haftmann@31036
|
982 |
fun code_deps_cmd thy = code_deps thy o op @ o read_const_exprs thy;
|
haftmann@30942
|
983 |
|
haftmann@30942
|
984 |
in
|
haftmann@30942
|
985 |
|
haftmann@30942
|
986 |
val _ =
|
haftmann@30942
|
987 |
OuterSyntax.improper_command "code_thms" "print system of code equations for code" OuterKeyword.diag
|
haftmann@30942
|
988 |
(Scan.repeat P.term_group
|
haftmann@30942
|
989 |
>> (fn cs => Toplevel.no_timing o Toplevel.unknown_theory
|
haftmann@30942
|
990 |
o Toplevel.keep ((fn thy => code_thms_cmd thy cs) o Toplevel.theory_of)));
|
haftmann@30942
|
991 |
|
haftmann@30942
|
992 |
val _ =
|
haftmann@30942
|
993 |
OuterSyntax.improper_command "code_deps" "visualize dependencies of code equations for code" OuterKeyword.diag
|
haftmann@30942
|
994 |
(Scan.repeat P.term_group
|
haftmann@30942
|
995 |
>> (fn cs => Toplevel.no_timing o Toplevel.unknown_theory
|
haftmann@30942
|
996 |
o Toplevel.keep ((fn thy => code_deps_cmd thy cs) o Toplevel.theory_of)));
|
haftmann@30942
|
997 |
|
haftmann@30942
|
998 |
end;
|
haftmann@27103
|
999 |
|
haftmann@24219
|
1000 |
end; (*struct*)
|
haftmann@24219
|
1001 |
|
haftmann@24219
|
1002 |
|
haftmann@28054
|
1003 |
structure Basic_Code_Thingol: BASIC_CODE_THINGOL = Code_Thingol;
|