wenzelm@548
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(* Title: Pure/Syntax/syn_trans.ML
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wenzelm@548
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ID: $Id$
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wenzelm@548
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Author: Tobias Nipkow and Markus Wenzel, TU Muenchen
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wenzelm@548
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wenzelm@548
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Syntax translation functions.
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wenzelm@548
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*)
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wenzelm@548
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wenzelm@548
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signature SYN_TRANS0 =
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wenzelm@2698
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sig
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wenzelm@548
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val eta_contract: bool ref
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nipkow@13762
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val atomic_abs_tr': string * typ * term -> term * term
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wenzelm@548
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val mk_binder_tr: string * string -> string * (term list -> term)
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wenzelm@548
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val mk_binder_tr': string * string -> string * (term list -> term)
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wenzelm@548
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val dependent_tr': string * string -> term list -> term
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wenzelm@8577
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val antiquote_tr: string -> term -> term
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wenzelm@8577
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val quote_tr: string -> term -> term
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wenzelm@5084
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val quote_antiquote_tr: string -> string -> string -> string * (term list -> term)
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wenzelm@8577
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val antiquote_tr': string -> term -> term
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wenzelm@8577
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val quote_tr': string -> term -> term
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wenzelm@5084
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val quote_antiquote_tr': string -> string -> string -> string * (term list -> term)
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wenzelm@2698
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val mark_bound: string -> term
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wenzelm@2698
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val mark_boundT: string * typ -> term
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wenzelm@18958
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val bound_vars: (string * typ) list -> term -> term
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wenzelm@2698
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val variant_abs': string * typ * term -> string * term
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wenzelm@2698
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end;
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wenzelm@548
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wenzelm@548
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signature SYN_TRANS1 =
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wenzelm@2698
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sig
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wenzelm@548
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include SYN_TRANS0
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wenzelm@14647
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val non_typed_tr': (term list -> term) -> bool -> typ -> term list -> term
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wenzelm@14647
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val non_typed_tr'': ('a -> term list -> term) -> 'a -> bool -> typ -> term list -> term
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paulson@1511
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val constrainAbsC: string
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paulson@1511
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val pure_trfuns:
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paulson@1511
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(string * (Ast.ast list -> Ast.ast)) list *
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wenzelm@548
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(string * (term list -> term)) list *
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wenzelm@548
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(string * (term list -> term)) list *
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paulson@1511
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(string * (Ast.ast list -> Ast.ast)) list
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wenzelm@4148
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val pure_trfunsT: (string * (bool -> typ -> term list -> term)) list
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wenzelm@14697
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val struct_trfuns: string list ->
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wenzelm@14697
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(string * (Ast.ast list -> Ast.ast)) list *
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wenzelm@14697
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(string * (term list -> term)) list *
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wenzelm@14697
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(string * (bool -> typ -> term list -> term)) list *
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wenzelm@14697
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(string * (Ast.ast list -> Ast.ast)) list
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wenzelm@2698
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end;
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wenzelm@548
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wenzelm@548
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signature SYN_TRANS =
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wenzelm@2698
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sig
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wenzelm@548
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include SYN_TRANS1
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paulson@1511
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val abs_tr': term -> term
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wenzelm@4148
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val prop_tr': term -> term
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paulson@1511
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val appl_ast_tr': Ast.ast * Ast.ast list -> Ast.ast
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paulson@1511
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val applC_ast_tr': Ast.ast * Ast.ast list -> Ast.ast
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wenzelm@18857
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val pts_to_asts: Context.generic ->
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wenzelm@18857
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(string -> (Context.generic -> Ast.ast list -> Ast.ast) option) ->
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wenzelm@16612
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Parser.parsetree list -> Ast.ast list
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wenzelm@18857
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val asts_to_terms: Context.generic ->
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wenzelm@18857
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(string -> (Context.generic -> term list -> term) option) -> Ast.ast list -> term list
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wenzelm@2698
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end;
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wenzelm@548
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wenzelm@2698
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structure SynTrans: SYN_TRANS =
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struct
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wenzelm@2698
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wenzelm@2698
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(** parse (ast) translations **)
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wenzelm@548
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wenzelm@11491
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(* constify *)
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wenzelm@11491
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wenzelm@11491
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fun constify_ast_tr [Ast.Variable c] = Ast.Constant c
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wenzelm@11491
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| constify_ast_tr asts = raise Ast.AST ("constify_ast_tr", asts);
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wenzelm@11491
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wenzelm@11491
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wenzelm@548
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(* application *)
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wenzelm@548
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wenzelm@5690
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fun appl_ast_tr [f, args] = Ast.Appl (f :: Ast.unfold_ast "_args" args)
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wenzelm@5690
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| appl_ast_tr asts = raise Ast.AST ("appl_ast_tr", asts);
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clasohm@922
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wenzelm@5690
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fun applC_ast_tr [f, args] = Ast.Appl (f :: Ast.unfold_ast "_cargs" args)
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wenzelm@5690
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| applC_ast_tr asts = raise Ast.AST ("applC_ast_tr", asts);
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wenzelm@548
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wenzelm@548
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wenzelm@548
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(* abstraction *)
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wenzelm@548
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wenzelm@17788
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fun idtyp_ast_tr (*"_idtyp"*) [x, ty] = Ast.Appl [Ast.Constant "_constrain", x, ty]
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wenzelm@5690
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| idtyp_ast_tr (*"_idtyp"*) asts = raise Ast.AST ("idtyp_ast_tr", asts);
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wenzelm@548
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wenzelm@17788
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fun idtypdummy_ast_tr (*"_idtypdummy"*) [ty] =
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wenzelm@17788
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Ast.Appl [Ast.Constant "_constrain", Ast.Constant "_idtdummy", ty]
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wenzelm@17788
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| idtypdummy_ast_tr (*"_idtypdummy"*) asts = raise Ast.AST ("idtyp_ast_tr", asts);
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wenzelm@17788
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wenzelm@3691
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fun lambda_ast_tr (*"_lambda"*) [pats, body] =
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wenzelm@5690
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Ast.fold_ast_p "_abs" (Ast.unfold_ast "_pttrns" pats, body)
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wenzelm@5690
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| lambda_ast_tr (*"_lambda"*) asts = raise Ast.AST ("lambda_ast_tr", asts);
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wenzelm@548
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wenzelm@548
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val constrainAbsC = "_constrainAbs";
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wenzelm@548
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wenzelm@17788
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fun abs_tr (*"_abs"*) [Free (x, T), t] = Term.absfree (x, T, t)
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wenzelm@17788
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| abs_tr (*"_abs"*) [Const ("_idtdummy", T), t] = Term.absdummy (T, t)
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wenzelm@17788
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| abs_tr (*"_abs"*) [Const ("_constrain", _) $ Free (x, T) $ tT, t] =
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wenzelm@17788
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Lexicon.const constrainAbsC $ Term.absfree (x, T, t) $ tT
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wenzelm@17788
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| abs_tr (*"_abs"*) [Const ("_constrain", _) $ Const ("_idtdummy", T) $ tT, t] =
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wenzelm@17788
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Lexicon.const constrainAbsC $ Term.absdummy (T, t) $ tT
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wenzelm@3777
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| abs_tr (*"_abs"*) ts = raise TERM ("abs_tr", ts);
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wenzelm@548
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wenzelm@548
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wenzelm@548
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(* binder *)
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wenzelm@548
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wenzelm@548
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fun mk_binder_tr (sy, name) =
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let
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wenzelm@5690
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fun tr (Free (x, T), t) = Lexicon.const name $ Term.absfree (x, T, t)
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wenzelm@17788
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| tr (Const ("_idtdummy", T), t) = Lexicon.const name $ Term.absdummy (T, t)
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wenzelm@17788
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| tr (Const ("_constrain", _) $ Free (x, T) $ tT, t) =
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wenzelm@18342
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Lexicon.const name $ (Lexicon.const constrainAbsC $ Term.absfree (x, T, t) $ tT)
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wenzelm@17788
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| tr (Const ("_constrain", _) $ Const ("_idtdummy", T) $ tT, t) =
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wenzelm@18342
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Lexicon.const name $ (Lexicon.const constrainAbsC $ Term.absdummy (T, t) $ tT)
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wenzelm@548
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| tr (Const ("_idts", _) $ idt $ idts, t) = tr (idt, tr (idts, t))
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wenzelm@3777
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| tr (t1, t2) = raise TERM ("binder_tr", [t1, t2]);
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wenzelm@548
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wenzelm@548
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fun binder_tr (*sy*) [idts, body] = tr (idts, body)
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wenzelm@3777
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| binder_tr (*sy*) ts = raise TERM ("binder_tr", ts);
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wenzelm@16612
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in (sy, binder_tr) end;
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wenzelm@548
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wenzelm@548
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wenzelm@548
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(* meta propositions *)
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wenzelm@548
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wenzelm@17788
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fun aprop_tr (*"_aprop"*) [t] = Lexicon.const "_constrain" $ t $ Lexicon.const "prop"
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wenzelm@3777
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| aprop_tr (*"_aprop"*) ts = raise TERM ("aprop_tr", ts);
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wenzelm@548
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wenzelm@548
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fun ofclass_tr (*"_ofclass"*) [ty, cls] =
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wenzelm@17788
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cls $ (Lexicon.const "_constrain" $ Lexicon.const "TYPE" $
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wenzelm@5690
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(Lexicon.const "itself" $ ty))
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wenzelm@3777
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| ofclass_tr (*"_ofclass"*) ts = raise TERM ("ofclass_tr", ts);
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wenzelm@548
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wenzelm@548
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wenzelm@548
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(* meta implication *)
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wenzelm@548
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wenzelm@16612
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fun bigimpl_ast_tr (*"_bigimpl"*) (asts as [asms, concl]) =
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wenzelm@16612
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let val prems =
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wenzelm@16612
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(case Ast.unfold_ast_p "_asms" asms of
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wenzelm@16612
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(asms', Ast.Appl [Ast.Constant "_asm", asm']) => asms' @ [asm']
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wenzelm@16612
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| _ => raise Ast.AST ("bigimpl_ast_tr", asts))
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wenzelm@16612
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in Ast.fold_ast_p "==>" (prems, concl) end
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schirmer@15421
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| bigimpl_ast_tr (*"_bigimpl"*) asts = raise Ast.AST ("bigimpl_ast_tr", asts);
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schirmer@15421
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wenzelm@548
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wenzelm@4148
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(* type reflection *)
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wenzelm@4148
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wenzelm@4148
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fun type_tr (*"_TYPE"*) [ty] =
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wenzelm@17788
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Lexicon.const "_constrain" $ Lexicon.const "TYPE" $ (Lexicon.const "itself" $ ty)
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wenzelm@4148
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| type_tr (*"_TYPE"*) ts = raise TERM ("type_tr", ts);
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wenzelm@4148
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wenzelm@548
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wenzelm@6761
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(* dddot *)
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wenzelm@6761
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wenzelm@8595
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fun dddot_tr (*"_DDDOT"*) ts = Term.list_comb (Lexicon.var SynExt.dddot_indexname, ts);
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wenzelm@6761
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wenzelm@6761
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wenzelm@5084
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(* quote / antiquote *)
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wenzelm@5084
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wenzelm@8577
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fun antiquote_tr name =
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wenzelm@8577
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let
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wenzelm@8577
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fun tr i ((t as Const (c, _)) $ u) =
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wenzelm@8577
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if c = name then tr i u $ Bound i
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wenzelm@8577
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else tr i t $ tr i u
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wenzelm@8577
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| tr i (t $ u) = tr i t $ tr i u
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wenzelm@8577
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| tr i (Abs (x, T, t)) = Abs (x, T, tr (i + 1) t)
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wenzelm@8577
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| tr _ a = a;
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wenzelm@8577
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in tr 0 end;
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wenzelm@8577
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wenzelm@8577
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fun quote_tr name t = Abs ("s", dummyT, antiquote_tr name (Term.incr_boundvars 1 t));
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wenzelm@8577
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wenzelm@5084
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fun quote_antiquote_tr quoteN antiquoteN name =
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wenzelm@5084
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let
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wenzelm@8577
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fun tr [t] = Lexicon.const name $ quote_tr antiquoteN t
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wenzelm@8577
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| tr ts = raise TERM ("quote_tr", ts);
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wenzelm@8577
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in (quoteN, tr) end;
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wenzelm@5084
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wenzelm@5084
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wenzelm@14697
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(* indexed syntax *)
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wenzelm@12122
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wenzelm@14697
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fun struct_ast_tr (*"_struct"*) [Ast.Appl [Ast.Constant "_index", ast]] = ast
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wenzelm@14697
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| struct_ast_tr (*"_struct"*) asts = Ast.mk_appl (Ast.Constant "_struct") asts;
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wenzelm@14697
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wenzelm@14697
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fun index_ast_tr ast =
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wenzelm@14697
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Ast.mk_appl (Ast.Constant "_index") [Ast.mk_appl (Ast.Constant "_struct") [ast]];
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wenzelm@14697
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wenzelm@14697
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fun indexdefault_ast_tr (*"_indexdefault"*) [] =
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wenzelm@14697
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index_ast_tr (Ast.Constant "_indexdefault")
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wenzelm@14697
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| indexdefault_ast_tr (*"_indexdefault"*) asts =
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wenzelm@14697
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raise Ast.AST ("indexdefault_ast_tr", asts);
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wenzelm@14697
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wenzelm@14697
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fun indexnum_ast_tr (*"_indexnum"*) [ast] =
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wenzelm@14697
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index_ast_tr (Ast.mk_appl (Ast.Constant "_indexnum") [ast])
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wenzelm@14697
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| indexnum_ast_tr (*"_indexnum"*) asts = raise Ast.AST ("indexnum_ast_tr", asts);
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wenzelm@14697
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wenzelm@14697
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fun indexvar_ast_tr (*"_indexvar"*) [] =
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wenzelm@14697
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Ast.mk_appl (Ast.Constant "_index") [Ast.Variable "some_index"]
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wenzelm@14697
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| indexvar_ast_tr (*"_indexvar"*) asts = raise Ast.AST ("indexvar_ast_tr", asts);
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wenzelm@14697
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wenzelm@14697
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fun index_tr (*"_index"*) [t] = t
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wenzelm@14697
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| index_tr (*"_index"*) ts = raise TERM ("index_tr", ts);
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wenzelm@14697
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wenzelm@14697
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wenzelm@14697
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(* implicit structures *)
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wenzelm@14697
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wenzelm@14697
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fun the_struct structs i =
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skalberg@15570
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if 1 <= i andalso i <= length structs then List.nth (structs, i - 1)
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wenzelm@18678
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else raise error ("Illegal reference to implicit structure #" ^ string_of_int i);
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wenzelm@14697
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wenzelm@14697
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fun struct_tr structs (*"_struct"*) [Const ("_indexdefault", _)] =
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wenzelm@14697
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Lexicon.free (the_struct structs 1)
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wenzelm@14697
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| struct_tr structs (*"_struct"*) [t as (Const ("_indexnum", _) $ Const (s, _))] =
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wenzelm@14697
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Lexicon.free (the_struct structs
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skalberg@15531
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(case Lexicon.read_nat s of SOME n => n | NONE => raise TERM ("struct_tr", [t])))
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wenzelm@14697
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| struct_tr _ (*"_struct"*) ts = raise TERM ("struct_tr", ts);
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wenzelm@12122
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wenzelm@12122
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216 |
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wenzelm@5084
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wenzelm@548
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(** print (ast) translations **)
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wenzelm@548
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219 |
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wenzelm@14647
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220 |
(* types *)
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wenzelm@14647
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221 |
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wenzelm@14647
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222 |
fun non_typed_tr' f _ _ ts = f ts;
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wenzelm@14647
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fun non_typed_tr'' f x _ _ ts = f x ts;
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wenzelm@14647
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224 |
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wenzelm@14647
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225 |
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wenzelm@548
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226 |
(* application *)
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wenzelm@548
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227 |
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wenzelm@5690
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228 |
fun appl_ast_tr' (f, []) = raise Ast.AST ("appl_ast_tr'", [f])
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wenzelm@5690
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229 |
| appl_ast_tr' (f, args) = Ast.Appl [Ast.Constant "_appl", f, Ast.fold_ast "_args" args];
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wenzelm@548
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230 |
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wenzelm@5690
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231 |
fun applC_ast_tr' (f, []) = raise Ast.AST ("applC_ast_tr'", [f])
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wenzelm@5690
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232 |
| applC_ast_tr' (f, args) = Ast.Appl [Ast.Constant "_applC", f, Ast.fold_ast "_cargs" args];
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clasohm@922
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233 |
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wenzelm@548
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234 |
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wenzelm@548
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235 |
(* abstraction *)
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wenzelm@548
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236 |
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wenzelm@5690
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237 |
fun mark_boundT x_T = Lexicon.const "_bound" $ Free x_T;
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wenzelm@2698
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238 |
fun mark_bound x = mark_boundT (x, dummyT);
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wenzelm@2698
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239 |
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wenzelm@18958
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240 |
fun bound_vars vars body =
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wenzelm@18958
|
241 |
subst_bounds (map mark_boundT (Term.rename_wrt_term body vars), body);
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wenzelm@18958
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242 |
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wenzelm@548
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243 |
fun strip_abss vars_of body_of tm =
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wenzelm@548
|
244 |
let
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wenzelm@548
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245 |
val vars = vars_of tm;
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wenzelm@548
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246 |
val body = body_of tm;
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wenzelm@548
|
247 |
val rev_new_vars = rename_wrt_term body vars;
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wenzelm@548
|
248 |
in
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wenzelm@2698
|
249 |
(map mark_boundT (rev rev_new_vars),
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wenzelm@2698
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250 |
subst_bounds (map (mark_bound o #1) rev_new_vars, body))
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wenzelm@548
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251 |
end;
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wenzelm@548
|
252 |
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wenzelm@3928
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253 |
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wenzelm@548
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254 |
(*do (partial) eta-contraction before printing*)
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wenzelm@548
|
255 |
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nipkow@1326
|
256 |
val eta_contract = ref true;
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wenzelm@548
|
257 |
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wenzelm@548
|
258 |
fun eta_contr tm =
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wenzelm@548
|
259 |
let
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wenzelm@3928
|
260 |
fun is_aprop (Const ("_aprop", _)) = true
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wenzelm@3928
|
261 |
| is_aprop _ = false;
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wenzelm@3928
|
262 |
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wenzelm@548
|
263 |
fun eta_abs (Abs (a, T, t)) =
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wenzelm@548
|
264 |
(case eta_abs t of
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wenzelm@548
|
265 |
t' as f $ u =>
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wenzelm@548
|
266 |
(case eta_abs u of
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wenzelm@548
|
267 |
Bound 0 =>
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wenzelm@5084
|
268 |
if Term.loose_bvar1 (f, 0) orelse is_aprop f then Abs (a, T, t')
|
wenzelm@3928
|
269 |
else incr_boundvars ~1 f
|
wenzelm@548
|
270 |
| _ => Abs (a, T, t'))
|
wenzelm@548
|
271 |
| t' => Abs (a, T, t'))
|
wenzelm@548
|
272 |
| eta_abs t = t;
|
wenzelm@548
|
273 |
in
|
wenzelm@548
|
274 |
if ! eta_contract then eta_abs tm else tm
|
wenzelm@548
|
275 |
end;
|
wenzelm@548
|
276 |
|
wenzelm@548
|
277 |
|
wenzelm@548
|
278 |
fun abs_tr' tm =
|
skalberg@15570
|
279 |
Library.foldr (fn (x, t) => Lexicon.const "_abs" $ x $ t)
|
wenzelm@548
|
280 |
(strip_abss strip_abs_vars strip_abs_body (eta_contr tm));
|
wenzelm@548
|
281 |
|
wenzelm@14697
|
282 |
fun atomic_abs_tr' (x, T, t) =
|
wenzelm@14697
|
283 |
let val [xT] = rename_wrt_term t [(x, T)]
|
wenzelm@14697
|
284 |
in (mark_boundT xT, subst_bound (mark_bound (fst xT), t)) end;
|
nipkow@13762
|
285 |
|
wenzelm@548
|
286 |
fun abs_ast_tr' (*"_abs"*) asts =
|
wenzelm@5690
|
287 |
(case Ast.unfold_ast_p "_abs" (Ast.Appl (Ast.Constant "_abs" :: asts)) of
|
wenzelm@5690
|
288 |
([], _) => raise Ast.AST ("abs_ast_tr'", asts)
|
wenzelm@5690
|
289 |
| (xs, body) => Ast.Appl [Ast.Constant "_lambda", Ast.fold_ast "_pttrns" xs, body]);
|
wenzelm@548
|
290 |
|
wenzelm@548
|
291 |
|
wenzelm@548
|
292 |
(* binder *)
|
wenzelm@548
|
293 |
|
wenzelm@548
|
294 |
fun mk_binder_tr' (name, sy) =
|
wenzelm@548
|
295 |
let
|
wenzelm@548
|
296 |
fun mk_idts [] = raise Match (*abort translation*)
|
wenzelm@548
|
297 |
| mk_idts [idt] = idt
|
wenzelm@5690
|
298 |
| mk_idts (idt :: idts) = Lexicon.const "_idts" $ idt $ mk_idts idts;
|
wenzelm@548
|
299 |
|
wenzelm@548
|
300 |
fun tr' t =
|
wenzelm@548
|
301 |
let
|
wenzelm@548
|
302 |
val (xs, bd) = strip_abss (strip_qnt_vars name) (strip_qnt_body name) t;
|
wenzelm@5690
|
303 |
in Lexicon.const sy $ mk_idts xs $ bd end;
|
wenzelm@548
|
304 |
|
wenzelm@5690
|
305 |
fun binder_tr' (*name*) (t :: ts) = Term.list_comb (tr' (Lexicon.const name $ t), ts)
|
wenzelm@548
|
306 |
| binder_tr' (*name*) [] = raise Match;
|
wenzelm@548
|
307 |
in
|
wenzelm@548
|
308 |
(name, binder_tr')
|
wenzelm@548
|
309 |
end;
|
wenzelm@548
|
310 |
|
wenzelm@548
|
311 |
|
wenzelm@3691
|
312 |
(* idtyp constraints *)
|
wenzelm@548
|
313 |
|
wenzelm@5690
|
314 |
fun idtyp_ast_tr' a [Ast.Appl [Ast.Constant c, x, ty], xs] =
|
wenzelm@17788
|
315 |
if c = "_constrain" then
|
wenzelm@5690
|
316 |
Ast.Appl [ Ast.Constant a, Ast.Appl [Ast.Constant "_idtyp", x, ty], xs]
|
wenzelm@548
|
317 |
else raise Match
|
wenzelm@3691
|
318 |
| idtyp_ast_tr' _ _ = raise Match;
|
wenzelm@548
|
319 |
|
wenzelm@548
|
320 |
|
wenzelm@548
|
321 |
(* meta propositions *)
|
wenzelm@548
|
322 |
|
wenzelm@4148
|
323 |
fun prop_tr' tm =
|
wenzelm@548
|
324 |
let
|
wenzelm@5690
|
325 |
fun aprop t = Lexicon.const "_aprop" $ t;
|
wenzelm@548
|
326 |
|
wenzelm@2698
|
327 |
fun is_prop Ts t =
|
wenzelm@2698
|
328 |
fastype_of1 (Ts, t) = propT handle TERM _ => false;
|
wenzelm@548
|
329 |
|
wenzelm@548
|
330 |
fun tr' _ (t as Const _) = t
|
wenzelm@18478
|
331 |
| tr' Ts (t as Const ("_bound", _) $ u) =
|
wenzelm@18478
|
332 |
if is_prop Ts u then aprop t else t
|
wenzelm@2698
|
333 |
| tr' _ (t as Free (x, T)) =
|
wenzelm@5690
|
334 |
if T = propT then aprop (Lexicon.free x) else t
|
wenzelm@2698
|
335 |
| tr' _ (t as Var (xi, T)) =
|
wenzelm@5690
|
336 |
if T = propT then aprop (Lexicon.var xi) else t
|
wenzelm@2698
|
337 |
| tr' Ts (t as Bound _) =
|
wenzelm@2698
|
338 |
if is_prop Ts t then aprop t else t
|
wenzelm@2698
|
339 |
| tr' Ts (Abs (x, T, t)) = Abs (x, T, tr' (T :: Ts) t)
|
wenzelm@2698
|
340 |
| tr' Ts (t as t1 $ (t2 as Const ("TYPE", Type ("itself", [T])))) =
|
wenzelm@4148
|
341 |
if is_prop Ts t then Const ("_mk_ofclass", T) $ tr' Ts t1
|
wenzelm@2698
|
342 |
else tr' Ts t1 $ tr' Ts t2
|
wenzelm@2698
|
343 |
| tr' Ts (t as t1 $ t2) =
|
wenzelm@5690
|
344 |
(if is_Const (Term.head_of t) orelse not (is_prop Ts t)
|
wenzelm@2698
|
345 |
then I else aprop) (tr' Ts t1 $ tr' Ts t2);
|
wenzelm@16612
|
346 |
in tr' [] tm end;
|
wenzelm@548
|
347 |
|
wenzelm@4148
|
348 |
fun mk_ofclass_tr' show_sorts (*"_mk_ofclass"*) T [t] =
|
wenzelm@5690
|
349 |
Lexicon.const "_ofclass" $ TypeExt.term_of_typ show_sorts T $ t
|
wenzelm@4148
|
350 |
| mk_ofclass_tr' _ (*"_mk_ofclass"*) T ts = raise TYPE ("mk_ofclass_tr'", [T], ts);
|
wenzelm@2698
|
351 |
|
wenzelm@2698
|
352 |
|
wenzelm@548
|
353 |
(* meta implication *)
|
wenzelm@548
|
354 |
|
wenzelm@548
|
355 |
fun impl_ast_tr' (*"==>"*) asts =
|
wenzelm@10572
|
356 |
if TypeExt.no_brackets () then raise Match
|
wenzelm@10572
|
357 |
else
|
wenzelm@10572
|
358 |
(case Ast.unfold_ast_p "==>" (Ast.Appl (Ast.Constant "==>" :: asts)) of
|
wenzelm@16612
|
359 |
(prems as _ :: _ :: _, concl) =>
|
wenzelm@16612
|
360 |
let
|
wenzelm@16612
|
361 |
val (asms, asm) = split_last prems;
|
wenzelm@16612
|
362 |
val asms' = Ast.fold_ast_p "_asms" (asms, Ast.Appl [Ast.Constant "_asm", asm]);
|
wenzelm@16612
|
363 |
in Ast.Appl [Ast.Constant "_bigimpl", asms', concl] end
|
schirmer@15421
|
364 |
| _ => raise Match);
|
schirmer@15421
|
365 |
|
wenzelm@548
|
366 |
|
wenzelm@4148
|
367 |
(* type reflection *)
|
wenzelm@4148
|
368 |
|
wenzelm@4148
|
369 |
fun type_tr' show_sorts (*"TYPE"*) (Type ("itself", [T])) ts =
|
wenzelm@5690
|
370 |
Term.list_comb (Lexicon.const "_TYPE" $ TypeExt.term_of_typ show_sorts T, ts)
|
wenzelm@4148
|
371 |
| type_tr' _ _ _ = raise Match;
|
wenzelm@4148
|
372 |
|
wenzelm@4148
|
373 |
|
wenzelm@548
|
374 |
(* dependent / nondependent quantifiers *)
|
wenzelm@548
|
375 |
|
wenzelm@2698
|
376 |
fun variant_abs' (x, T, B) =
|
wenzelm@2698
|
377 |
let val x' = variant (add_term_names (B, [])) x in
|
wenzelm@2698
|
378 |
(x', subst_bound (mark_boundT (x', T), B))
|
wenzelm@2698
|
379 |
end;
|
wenzelm@2698
|
380 |
|
wenzelm@548
|
381 |
fun dependent_tr' (q, r) (A :: Abs (x, T, B) :: ts) =
|
wenzelm@5084
|
382 |
if Term.loose_bvar1 (B, 0) then
|
wenzelm@2698
|
383 |
let val (x', B') = variant_abs' (x, dummyT, B);
|
wenzelm@5690
|
384 |
in Term.list_comb (Lexicon.const q $ mark_boundT (x', T) $ A $ B', ts) end
|
wenzelm@5690
|
385 |
else Term.list_comb (Lexicon.const r $ A $ B, ts)
|
wenzelm@548
|
386 |
| dependent_tr' _ _ = raise Match;
|
wenzelm@548
|
387 |
|
wenzelm@548
|
388 |
|
wenzelm@5084
|
389 |
(* quote / antiquote *)
|
wenzelm@5084
|
390 |
|
wenzelm@8577
|
391 |
fun antiquote_tr' name =
|
wenzelm@8577
|
392 |
let
|
wenzelm@8577
|
393 |
fun tr' i (t $ u) =
|
wenzelm@18139
|
394 |
if u aconv Bound i then Lexicon.const name $ tr' i t
|
wenzelm@8577
|
395 |
else tr' i t $ tr' i u
|
wenzelm@8577
|
396 |
| tr' i (Abs (x, T, t)) = Abs (x, T, tr' (i + 1) t)
|
wenzelm@18139
|
397 |
| tr' i a = if a aconv Bound i then raise Match else a;
|
wenzelm@8577
|
398 |
in tr' 0 end;
|
wenzelm@8577
|
399 |
|
wenzelm@8577
|
400 |
fun quote_tr' name (Abs (_, _, t)) = Term.incr_boundvars ~1 (antiquote_tr' name t)
|
wenzelm@8577
|
401 |
| quote_tr' _ _ = raise Match;
|
wenzelm@8577
|
402 |
|
wenzelm@5084
|
403 |
fun quote_antiquote_tr' quoteN antiquoteN name =
|
wenzelm@5084
|
404 |
let
|
wenzelm@8577
|
405 |
fun tr' (t :: ts) = Term.list_comb (Lexicon.const quoteN $ quote_tr' antiquoteN t, ts)
|
wenzelm@8577
|
406 |
| tr' _ = raise Match;
|
wenzelm@8577
|
407 |
in (name, tr') end;
|
wenzelm@5084
|
408 |
|
wenzelm@5084
|
409 |
|
wenzelm@14697
|
410 |
(* indexed syntax *)
|
wenzelm@548
|
411 |
|
wenzelm@14697
|
412 |
fun index_ast_tr' (*"_index"*) [Ast.Appl [Ast.Constant "_struct", ast]] = ast
|
wenzelm@14697
|
413 |
| index_ast_tr' _ = raise Match;
|
wenzelm@14697
|
414 |
|
wenzelm@14697
|
415 |
|
wenzelm@14697
|
416 |
(* implicit structures *)
|
wenzelm@14697
|
417 |
|
wenzelm@14697
|
418 |
fun the_struct' structs s =
|
wenzelm@14697
|
419 |
[(case Lexicon.read_nat s of
|
wenzelm@18678
|
420 |
SOME i => Ast.Variable (the_struct structs i handle ERROR _ => raise Match)
|
skalberg@15531
|
421 |
| NONE => raise Match)] |> Ast.mk_appl (Ast.Constant "_free");
|
wenzelm@14697
|
422 |
|
wenzelm@14697
|
423 |
fun struct_ast_tr' structs (*"_struct"*) [Ast.Constant "_indexdefault"] =
|
wenzelm@14697
|
424 |
the_struct' structs "1"
|
wenzelm@14697
|
425 |
| struct_ast_tr' structs (*"_struct"*) [Ast.Appl [Ast.Constant "_indexnum", Ast.Constant s]] =
|
wenzelm@14697
|
426 |
the_struct' structs s
|
wenzelm@14697
|
427 |
| struct_ast_tr' _ _ = raise Match;
|
wenzelm@14697
|
428 |
|
wenzelm@14697
|
429 |
|
wenzelm@14697
|
430 |
|
wenzelm@14697
|
431 |
(** Pure translations **)
|
wenzelm@548
|
432 |
|
wenzelm@548
|
433 |
val pure_trfuns =
|
wenzelm@11491
|
434 |
([("_constify", constify_ast_tr), ("_appl", appl_ast_tr), ("_applC", applC_ast_tr),
|
wenzelm@17788
|
435 |
("_lambda", lambda_ast_tr), ("_idtyp", idtyp_ast_tr), ("_idtypdummy", idtypdummy_ast_tr),
|
wenzelm@17788
|
436 |
("_bigimpl", bigimpl_ast_tr), ("_indexdefault", indexdefault_ast_tr),
|
wenzelm@17788
|
437 |
("_indexnum", indexnum_ast_tr), ("_indexvar", indexvar_ast_tr), ("_struct", struct_ast_tr)],
|
clasohm@922
|
438 |
[("_abs", abs_tr), ("_aprop", aprop_tr), ("_ofclass", ofclass_tr),
|
wenzelm@17788
|
439 |
("_TYPE", type_tr), ("_DDDOT", dddot_tr),
|
wenzelm@14697
|
440 |
("_index", index_tr)],
|
wenzelm@19127
|
441 |
[],
|
wenzelm@3691
|
442 |
[("_abs", abs_ast_tr'), ("_idts", idtyp_ast_tr' "_idts"),
|
wenzelm@14697
|
443 |
("_pttrns", idtyp_ast_tr' "_pttrns"), ("==>", impl_ast_tr'),
|
wenzelm@14697
|
444 |
("_index", index_ast_tr')]);
|
wenzelm@548
|
445 |
|
wenzelm@2698
|
446 |
val pure_trfunsT =
|
wenzelm@4148
|
447 |
[("_mk_ofclass", mk_ofclass_tr'), ("TYPE", type_tr')];
|
wenzelm@2698
|
448 |
|
wenzelm@14697
|
449 |
fun struct_trfuns structs =
|
wenzelm@14697
|
450 |
([], [("_struct", struct_tr structs)], [], [("_struct", struct_ast_tr' structs)]);
|
wenzelm@14697
|
451 |
|
wenzelm@548
|
452 |
|
wenzelm@548
|
453 |
|
wenzelm@14868
|
454 |
(** pts_to_asts **)
|
wenzelm@548
|
455 |
|
wenzelm@18857
|
456 |
fun pts_to_asts context trf pts =
|
wenzelm@548
|
457 |
let
|
wenzelm@548
|
458 |
fun trans a args =
|
wenzelm@548
|
459 |
(case trf a of
|
skalberg@15531
|
460 |
NONE => Ast.mk_appl (Ast.Constant a) args
|
wenzelm@16612
|
461 |
| SOME f => transform_failure (fn exn =>
|
wenzelm@17364
|
462 |
EXCEPTION (exn, "Error in parse ast translation for " ^ quote a))
|
wenzelm@18857
|
463 |
(fn () => f context args) ());
|
wenzelm@548
|
464 |
|
clasohm@987
|
465 |
(*translate pt bottom-up*)
|
wenzelm@5690
|
466 |
fun ast_of (Parser.Node (a, pts)) = trans a (map ast_of pts)
|
wenzelm@5690
|
467 |
| ast_of (Parser.Tip tok) = Ast.Variable (Lexicon.str_of_token tok);
|
berghofe@14798
|
468 |
|
wenzelm@14868
|
469 |
val exn_results = map (capture ast_of) pts;
|
skalberg@15570
|
470 |
val exns = List.mapPartial get_exn exn_results;
|
skalberg@15570
|
471 |
val results = List.mapPartial get_result exn_results
|
wenzelm@16612
|
472 |
in (case (results, exns) of ([], exn :: _) => raise exn | _ => results) end;
|
wenzelm@548
|
473 |
|
wenzelm@548
|
474 |
|
wenzelm@548
|
475 |
|
berghofe@14798
|
476 |
(** asts_to_terms **)
|
wenzelm@548
|
477 |
|
wenzelm@18857
|
478 |
fun asts_to_terms context trf asts =
|
wenzelm@548
|
479 |
let
|
wenzelm@548
|
480 |
fun trans a args =
|
wenzelm@548
|
481 |
(case trf a of
|
skalberg@15531
|
482 |
NONE => Term.list_comb (Lexicon.const a, args)
|
wenzelm@16612
|
483 |
| SOME f => transform_failure (fn exn =>
|
wenzelm@17364
|
484 |
EXCEPTION (exn, "Error in parse translation for " ^ quote a))
|
wenzelm@18857
|
485 |
(fn () => f context args) ());
|
wenzelm@548
|
486 |
|
wenzelm@5690
|
487 |
fun term_of (Ast.Constant a) = trans a []
|
wenzelm@5690
|
488 |
| term_of (Ast.Variable x) = Lexicon.read_var x
|
wenzelm@5690
|
489 |
| term_of (Ast.Appl (Ast.Constant a :: (asts as _ :: _))) =
|
wenzelm@548
|
490 |
trans a (map term_of asts)
|
wenzelm@5690
|
491 |
| term_of (Ast.Appl (ast :: (asts as _ :: _))) =
|
wenzelm@5690
|
492 |
Term.list_comb (term_of ast, map term_of asts)
|
wenzelm@5690
|
493 |
| term_of (ast as Ast.Appl _) = raise Ast.AST ("ast_to_term: malformed ast", [ast]);
|
berghofe@14798
|
494 |
|
wenzelm@19005
|
495 |
val free_fixed = Term.map_aterms
|
wenzelm@19005
|
496 |
(fn t as Const (c, T) =>
|
wenzelm@19005
|
497 |
(case try (unprefix Lexicon.fixedN) c of
|
wenzelm@19005
|
498 |
NONE => t
|
wenzelm@18342
|
499 |
| SOME x => Free (x, T))
|
wenzelm@19005
|
500 |
| t => t);
|
wenzelm@18342
|
501 |
|
wenzelm@18342
|
502 |
val exn_results = map (capture (term_of #> free_fixed)) asts;
|
skalberg@15570
|
503 |
val exns = List.mapPartial get_exn exn_results;
|
skalberg@15570
|
504 |
val results = List.mapPartial get_result exn_results
|
wenzelm@16612
|
505 |
in (case (results, exns) of ([], exn :: _) => raise exn | _ => results) end;
|
wenzelm@548
|
506 |
|
wenzelm@548
|
507 |
end;
|