src/Pure/sign.ML
author wenzelm
Wed Oct 17 23:16:30 2007 +0200 (2007-10-17)
changeset 25071 6680bebdfc28
parent 25049 ec0547a4fcf0
child 25117 74b279146ecb
permissions -rw-r--r--
removed unused set_policy;
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(*  Title:      Pure/sign.ML
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    ID:         $Id$
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    Author:     Lawrence C Paulson and Markus Wenzel
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Logical signature content: naming conventions, concrete syntax, type
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signature, polymorphic constants.
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*)
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signature SIGN_THEORY =
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sig
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  val add_defsort: string -> theory -> theory
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  val add_defsort_i: sort -> theory -> theory
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  val add_types: (bstring * int * mixfix) list -> theory -> theory
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  val add_typedecls: (bstring * string list * mixfix) list -> theory -> theory
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  val add_nonterminals: bstring list -> theory -> theory
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  val add_tyabbrs: (bstring * string list * string * mixfix) list -> theory -> theory
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  val add_tyabbrs_i: (bstring * string list * typ * mixfix) list -> theory -> theory
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  val add_syntax: (bstring * string * mixfix) list -> theory -> theory
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  val add_syntax_i: (bstring * typ * mixfix) list -> theory -> theory
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  val add_modesyntax: Syntax.mode -> (bstring * string * mixfix) list -> theory -> theory
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  val add_modesyntax_i: Syntax.mode -> (bstring * typ * mixfix) list -> theory -> theory
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  val del_modesyntax: Syntax.mode -> (bstring * string * mixfix) list -> theory -> theory
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  val del_modesyntax_i: Syntax.mode -> (bstring * typ * mixfix) list -> theory -> theory
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  val add_consts: (bstring * string * mixfix) list -> theory -> theory
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  val add_consts_i: (bstring * typ * mixfix) list -> theory -> theory
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  val add_trfuns:
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    (string * (ast list -> ast)) list *
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    (string * (term list -> term)) list *
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    (string * (term list -> term)) list *
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    (string * (ast list -> ast)) list -> theory -> theory
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  val add_trfunsT:
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    (string * (bool -> typ -> term list -> term)) list -> theory -> theory
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  val add_advanced_trfuns:
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    (string * (Proof.context -> ast list -> ast)) list *
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    (string * (Proof.context -> term list -> term)) list *
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    (string * (Proof.context -> term list -> term)) list *
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    (string * (Proof.context -> ast list -> ast)) list -> theory -> theory
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  val add_advanced_trfunsT:
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    (string * (Proof.context -> bool -> typ -> term list -> term)) list -> theory -> theory
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  val add_tokentrfuns:
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    (string * string * (string -> output * int)) list -> theory -> theory
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  val add_mode_tokentrfuns: string -> (string * (string -> output * int)) list
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    -> theory -> theory
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  val add_trrules: (xstring * string) Syntax.trrule list -> theory -> theory
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  val del_trrules: (xstring * string) Syntax.trrule list -> theory -> theory
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  val add_trrules_i: ast Syntax.trrule list -> theory -> theory
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  val del_trrules_i: ast Syntax.trrule list -> theory -> theory
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  val add_path: string -> theory -> theory
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  val parent_path: theory -> theory
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  val root_path: theory -> theory
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  val absolute_path: theory -> theory
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  val local_path: theory -> theory
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  val no_base_names: theory -> theory
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  val qualified_names: theory -> theory
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  val sticky_prefix: string -> theory -> theory
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  val restore_naming: theory -> theory -> theory
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end
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signature SIGN =
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sig
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  val rep_sg: theory ->
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   {naming: NameSpace.naming,
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    syn: Syntax.syntax,
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    tsig: Type.tsig,
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    consts: Consts.T}
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  val naming_of: theory -> NameSpace.naming
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  val base_name: string -> bstring
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  val full_name: theory -> bstring -> string
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  val full_name_path: theory -> string -> bstring -> string
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  val declare_name: theory -> string -> NameSpace.T -> NameSpace.T
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  val syn_of: theory -> Syntax.syntax
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  val tsig_of: theory -> Type.tsig
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  val classes_of: theory -> Sorts.algebra
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  val all_classes: theory -> class list
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  val super_classes: theory -> class -> class list
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  val minimize_sort: theory -> sort -> sort
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  val complete_sort: theory -> sort -> sort
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  val defaultS: theory -> sort
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  val subsort: theory -> sort * sort -> bool
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  val of_sort: theory -> typ * sort -> bool
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  val witness_sorts: theory -> sort list -> sort list -> (typ * sort) list
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  val universal_witness: theory -> (typ * sort) option
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  val all_sorts_nonempty: theory -> bool
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  val is_logtype: theory -> string -> bool
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  val typ_instance: theory -> typ * typ -> bool
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  val typ_equiv: theory -> typ * typ -> bool
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  val typ_match: theory -> typ * typ -> Type.tyenv -> Type.tyenv
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  val typ_unify: theory -> typ * typ -> Type.tyenv * int -> Type.tyenv * int
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  val consts_of: theory -> Consts.T
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  val the_const_constraint: theory -> string -> typ
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  val const_type: theory -> string -> typ option
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  val the_const_type: theory -> string -> typ
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  val declared_tyname: theory -> string -> bool
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  val declared_const: theory -> string -> bool
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  val const_monomorphic: theory -> string -> bool
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  val const_syntax_name: theory -> string -> string
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  val const_typargs: theory -> string * typ -> typ list
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  val const_instance: theory -> string * typ list -> typ
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  val class_space: theory -> NameSpace.T
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  val type_space: theory -> NameSpace.T
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  val const_space: theory -> NameSpace.T
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  val intern_class: theory -> xstring -> string
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  val extern_class: theory -> string -> xstring
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  val intern_type: theory -> xstring -> string
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  val extern_type: theory -> string -> xstring
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  val intern_const: theory -> xstring -> string
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  val extern_const: theory -> string -> xstring
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  val intern_sort: theory -> sort -> sort
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  val extern_sort: theory -> sort -> sort
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  val intern_typ: theory -> typ -> typ
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  val extern_typ: theory -> typ -> typ
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  val intern_term: theory -> term -> term
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  val extern_term: (string -> xstring) -> theory -> term -> term
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  val intern_tycons: theory -> typ -> typ
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  val pretty_term: theory -> term -> Pretty.T
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  val pretty_typ: theory -> typ -> Pretty.T
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  val pretty_sort: theory -> sort -> Pretty.T
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  val string_of_term: theory -> term -> string
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  val string_of_typ: theory -> typ -> string
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  val string_of_sort: theory -> sort -> string
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  val pp: theory -> Pretty.pp
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  val arity_number: theory -> string -> int
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  val arity_sorts: theory -> string -> sort -> sort list
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  val certify_class: theory -> class -> class
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  val certify_sort: theory -> sort -> sort
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  val certify_typ: theory -> typ -> typ
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  val certify_typ_mode: Type.mode -> theory -> typ -> typ
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  val certify': bool -> Pretty.pp -> bool -> Consts.T -> theory -> term -> term * typ * int
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  val certify_term: theory -> term -> term * typ * int
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  val certify_prop: theory -> term -> term * typ * int
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  val cert_term: theory -> term -> term
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  val cert_prop: theory -> term -> term
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  val no_frees: Pretty.pp -> term -> term
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  val no_vars: Pretty.pp -> term -> term
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  val cert_def: Proof.context -> term -> (string * typ) * term
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  val read_class: theory -> xstring -> class
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  val read_arity: theory -> xstring * string list * string -> arity
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  val cert_arity: theory -> arity -> arity
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  val get_sort: theory ->
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    (indexname -> sort option) -> (indexname * sort) list -> indexname -> sort
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  val read_def_typ: theory * (indexname -> sort option) -> string -> typ
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  val read_typ: theory -> string -> typ
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  val read_typ_syntax: theory -> string -> typ
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  val read_typ_abbrev: theory -> string -> typ
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  val read_tyname: theory -> string -> typ
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  val read_const: theory -> string -> term
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  val read_def_terms': Pretty.pp -> (string -> bool) -> Syntax.syntax -> Consts.T ->
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    (string -> string option) -> Proof.context ->
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    (indexname -> typ option) * (indexname -> sort option) ->
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    Name.context -> bool -> (string * typ) list -> term list * (indexname * typ) list
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  val read_def_terms:
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    theory * (indexname -> typ option) * (indexname -> sort option) ->
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    string list -> bool -> (string * typ) list -> term list * (indexname * typ) list
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  val simple_read_term: theory -> typ -> string -> term
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  val read_term: theory -> string -> term
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  val read_prop: theory -> string -> term
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  val declare_const: Markup.property list -> bstring * typ * mixfix -> theory -> term * theory
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  val notation: bool -> Syntax.mode -> (term * mixfix) list -> theory -> theory
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  val add_abbrev: string -> Markup.property list ->
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    bstring * term -> theory -> (term * term) * theory
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  val revert_abbrev: string -> string -> theory -> theory
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  include SIGN_THEORY
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  val add_const_constraint: string * typ option -> theory -> theory
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  val primitive_class: string * class list -> theory -> theory
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  val primitive_classrel: class * class -> theory -> theory
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  val primitive_arity: arity -> theory -> theory
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  val hide_classes: bool -> xstring list -> theory -> theory
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  val hide_classes_i: bool -> string list -> theory -> theory
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  val hide_types: bool -> xstring list -> theory -> theory
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  val hide_types_i: bool -> string list -> theory -> theory
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  val hide_consts: bool -> xstring list -> theory -> theory
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  val hide_consts_i: bool -> string list -> theory -> theory
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  val hide_names: bool -> string * xstring list -> theory -> theory
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  val hide_names_i: bool -> string * string list -> theory -> theory
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end
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structure Sign: SIGN =
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struct
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(** datatype sign **)
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datatype sign = Sign of
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 {naming: NameSpace.naming,     (*common naming conventions*)
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  syn: Syntax.syntax,           (*concrete syntax for terms, types, sorts*)
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  tsig: Type.tsig,              (*order-sorted signature of types*)
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  consts: Consts.T};            (*polymorphic constants*)
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fun make_sign (naming, syn, tsig, consts) =
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  Sign {naming = naming, syn = syn, tsig = tsig, consts = consts};
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structure SignData = TheoryDataFun
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(
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  type T = sign;
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  val copy = I;
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  fun extend (Sign {syn, tsig, consts, ...}) =
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    make_sign (NameSpace.default_naming, syn, tsig, consts);
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  val empty =
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    make_sign (NameSpace.default_naming, Syntax.basic_syn, Type.empty_tsig, Consts.empty);
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  fun merge pp (sign1, sign2) =
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    let
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      val Sign {naming = _, syn = syn1, tsig = tsig1, consts = consts1} = sign1;
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      val Sign {naming = _, syn = syn2, tsig = tsig2, consts = consts2} = sign2;
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      val naming = NameSpace.default_naming;
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      val syn = Syntax.merge_syntaxes syn1 syn2;
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      val tsig = Type.merge_tsigs pp (tsig1, tsig2);
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      val consts = Consts.merge (consts1, consts2);
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    in make_sign (naming, syn, tsig, consts) end;
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);
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fun rep_sg thy = SignData.get thy |> (fn Sign args => args);
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fun map_sign f = SignData.map (fn Sign {naming, syn, tsig, consts} =>
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  make_sign (f (naming, syn, tsig, consts)));
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fun map_naming f = map_sign (fn (naming, syn, tsig, consts) => (f naming, syn, tsig, consts));
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fun map_syn f = map_sign (fn (naming, syn, tsig, consts) => (naming, f syn, tsig, consts));
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fun map_tsig f = map_sign (fn (naming, syn, tsig, consts) => (naming, syn, f tsig, consts));
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fun map_consts f = map_sign (fn (naming, syn, tsig, consts) => (naming, syn, tsig, f consts));
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(* naming *)
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val naming_of = #naming o rep_sg;
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val base_name = NameSpace.base;
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val full_name = NameSpace.full o naming_of;
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fun full_name_path thy elems = NameSpace.full (NameSpace.add_path elems (naming_of thy));
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val declare_name = NameSpace.declare o naming_of;
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(* syntax *)
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val syn_of = #syn o rep_sg;
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(* type signature *)
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val tsig_of = #tsig o rep_sg;
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val classes_of = #2 o #classes o Type.rep_tsig o tsig_of;
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val all_classes = Sorts.all_classes o classes_of;
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val minimal_classes = Sorts.minimal_classes o classes_of;
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val super_classes = Sorts.super_classes o classes_of;
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val minimize_sort = Sorts.minimize_sort o classes_of;
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val complete_sort = Sorts.complete_sort o classes_of;
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val defaultS = Type.defaultS o tsig_of;
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val subsort = Type.subsort o tsig_of;
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val of_sort = Type.of_sort o tsig_of;
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val witness_sorts = Type.witness_sorts o tsig_of;
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val universal_witness = Type.universal_witness o tsig_of;
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val all_sorts_nonempty = is_some o universal_witness;
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val is_logtype = member (op =) o Type.logical_types o tsig_of;
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val typ_instance = Type.typ_instance o tsig_of;
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fun typ_equiv thy (T, U) = typ_instance thy (T, U) andalso typ_instance thy (U, T);
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val typ_match = Type.typ_match o tsig_of;
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val typ_unify = Type.unify o tsig_of;
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(* polymorphic constants *)
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val consts_of = #consts o rep_sg;
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val the_const_constraint = Consts.the_constraint o consts_of;
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val the_const_type = Consts.the_type o consts_of;
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val const_type = try o the_const_type;
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val const_monomorphic = Consts.is_monomorphic o consts_of;
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val const_syntax_name = Consts.syntax_name o consts_of;
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val const_typargs = Consts.typargs o consts_of;
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val const_instance = Consts.instance o consts_of;
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val declared_tyname = Symtab.defined o #2 o #types o Type.rep_tsig o tsig_of;
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val declared_const = can o the_const_constraint;
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(** intern / extern names **)
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val class_space = #1 o #classes o Type.rep_tsig o tsig_of;
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val type_space = #1 o #types o Type.rep_tsig o tsig_of;
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val const_space = Consts.space_of o consts_of;
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val intern_class = NameSpace.intern o class_space;
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val extern_class = NameSpace.extern o class_space;
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val intern_type = NameSpace.intern o type_space;
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val extern_type = NameSpace.extern o type_space;
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val intern_const = NameSpace.intern o const_space;
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val extern_const = NameSpace.extern o const_space;
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val intern_sort = map o intern_class;
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val extern_sort = map o extern_class;
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local
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fun map_typ f g (Type (c, Ts)) = Type (g c, map (map_typ f g) Ts)
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  | map_typ f _ (TFree (x, S)) = TFree (x, map f S)
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  | map_typ f _ (TVar (xi, S)) = TVar (xi, map f S);
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fun map_term f g h (Const (c, T)) = Const (h c, map_typ f g T)
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  | map_term f g _ (Free (x, T)) = Free (x, map_typ f g T)
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  | map_term f g _ (Var (xi, T)) = Var (xi, map_typ f g T)
wenzelm@18892
   304
  | map_term _ _ _ (t as Bound _) = t
wenzelm@18892
   305
  | map_term f g h (Abs (x, T, t)) = Abs (x, map_typ f g T, map_term f g h t)
wenzelm@18892
   306
  | map_term f g h (t $ u) = map_term f g h t $ map_term f g h u;
wenzelm@18892
   307
wenzelm@18994
   308
val add_classesT = Term.fold_atyps
wenzelm@18994
   309
  (fn TFree (_, S) => fold (insert (op =)) S
wenzelm@18994
   310
    | TVar (_, S) => fold (insert (op =)) S
wenzelm@18994
   311
    | _ => I);
wenzelm@18994
   312
wenzelm@18994
   313
fun add_tyconsT (Type (c, Ts)) = insert (op =) c #> fold add_tyconsT Ts
wenzelm@18994
   314
  | add_tyconsT _ = I;
wenzelm@18994
   315
wenzelm@18994
   316
val add_consts = Term.fold_aterms (fn Const (c, _) => insert (op =) c | _ => I);
wenzelm@18994
   317
wenzelm@16337
   318
fun mapping add_names f t =
wenzelm@16337
   319
  let
wenzelm@20664
   320
    fun f' (x: string) = let val y = f x in if x = y then NONE else SOME (x, y) end;
wenzelm@19482
   321
    val tab = map_filter f' (add_names t []);
wenzelm@18941
   322
    fun get x = the_default x (AList.lookup (op =) tab x);
wenzelm@16337
   323
  in get end;
wenzelm@16337
   324
wenzelm@16442
   325
fun typ_mapping f g thy T =
wenzelm@18892
   326
  T |> map_typ
wenzelm@18994
   327
    (mapping add_classesT (f thy) T)
wenzelm@18994
   328
    (mapping add_tyconsT (g thy) T);
wenzelm@14645
   329
wenzelm@16442
   330
fun term_mapping f g h thy t =
wenzelm@18892
   331
  t |> map_term
wenzelm@18994
   332
    (mapping (Term.fold_types add_classesT) (f thy) t)
wenzelm@18994
   333
    (mapping (Term.fold_types add_tyconsT) (g thy) t)
wenzelm@18994
   334
    (mapping add_consts (h thy) t);
wenzelm@16337
   335
wenzelm@16337
   336
in
wenzelm@14645
   337
wenzelm@16368
   338
val intern_typ = typ_mapping intern_class intern_type;
wenzelm@16368
   339
val extern_typ = typ_mapping extern_class extern_type;
wenzelm@16368
   340
val intern_term = term_mapping intern_class intern_type intern_const;
wenzelm@18994
   341
fun extern_term h = term_mapping extern_class extern_type (K h);
wenzelm@16368
   342
val intern_tycons = typ_mapping (K I) intern_type;
wenzelm@16337
   343
wenzelm@16337
   344
end;
wenzelm@14645
   345
wenzelm@14645
   346
wenzelm@14645
   347
wenzelm@4249
   348
(** pretty printing of terms, types etc. **)
wenzelm@3937
   349
wenzelm@24921
   350
val pretty_term = Syntax.pretty_term o ProofContext.init;
wenzelm@24921
   351
val pretty_typ = Syntax.pretty_typ o ProofContext.init;
wenzelm@24921
   352
val pretty_sort = Syntax.pretty_sort o ProofContext.init;
wenzelm@18857
   353
wenzelm@24921
   354
val string_of_term = Syntax.string_of_term o ProofContext.init;
wenzelm@24921
   355
val string_of_typ = Syntax.string_of_typ o ProofContext.init;
wenzelm@24921
   356
val string_of_sort = Syntax.string_of_sort o ProofContext.init;
wenzelm@3937
   357
wenzelm@24921
   358
(*pp operations -- deferred evaluation*)
wenzelm@24921
   359
fun pp thy = Pretty.pp
wenzelm@24921
   360
 (fn x => pretty_term thy x,
wenzelm@24921
   361
  fn x => pretty_typ thy x,
wenzelm@24921
   362
  fn x => pretty_sort thy x,
wenzelm@24921
   363
  fn x => Syntax.pretty_classrel (ProofContext.init thy) x,
wenzelm@24921
   364
  fn x => Syntax.pretty_arity (ProofContext.init thy) x);
wenzelm@14828
   365
wenzelm@3937
   366
wenzelm@3937
   367
wenzelm@16337
   368
(** certify entities **)    (*exception TYPE*)
wenzelm@8898
   369
wenzelm@16337
   370
(* certify wrt. type signature *)
wenzelm@8898
   371
wenzelm@19462
   372
val arity_number = Type.arity_number o tsig_of;
wenzelm@19462
   373
fun arity_sorts thy = Type.arity_sorts (pp thy) (tsig_of thy);
wenzelm@19462
   374
wenzelm@24273
   375
val certify_class         = Type.cert_class o tsig_of;
wenzelm@24273
   376
val certify_sort          = Type.cert_sort o tsig_of;
wenzelm@24273
   377
val certify_typ           = Type.cert_typ o tsig_of;
wenzelm@24273
   378
fun certify_typ_mode mode = Type.cert_typ_mode mode o tsig_of;
wenzelm@10443
   379
wenzelm@4961
   380
wenzelm@18967
   381
(* certify term/prop *)
wenzelm@4961
   382
wenzelm@14987
   383
local
nipkow@1494
   384
wenzelm@16337
   385
fun type_check pp tm =
wenzelm@4961
   386
  let
wenzelm@4961
   387
    fun err_appl why bs t T u U =
wenzelm@4961
   388
      let
wenzelm@10404
   389
        val xs = map Free bs;           (*we do not rename here*)
wenzelm@4961
   390
        val t' = subst_bounds (xs, t);
wenzelm@4961
   391
        val u' = subst_bounds (xs, u);
wenzelm@16337
   392
        val msg = cat_lines
wenzelm@14828
   393
          (TypeInfer.appl_error (Syntax.pp_show_brackets pp) why t' T u' U);
wenzelm@16337
   394
      in raise TYPE (msg, [T, U], [t', u']) end;
wenzelm@4961
   395
wenzelm@4961
   396
    fun typ_of (_, Const (_, T)) = T
wenzelm@4961
   397
      | typ_of (_, Free  (_, T)) = T
wenzelm@4961
   398
      | typ_of (_, Var (_, T)) = T
skalberg@15570
   399
      | typ_of (bs, Bound i) = snd (List.nth (bs, i) handle Subscript =>
wenzelm@4961
   400
          raise TYPE ("Loose bound variable: B." ^ string_of_int i, [], [Bound i]))
wenzelm@4961
   401
      | typ_of (bs, Abs (x, T, body)) = T --> typ_of ((x, T) :: bs, body)
wenzelm@4961
   402
      | typ_of (bs, t $ u) =
wenzelm@4961
   403
          let val T = typ_of (bs, t) and U = typ_of (bs, u) in
wenzelm@4961
   404
            (case T of
wenzelm@4961
   405
              Type ("fun", [T1, T2]) =>
wenzelm@14828
   406
                if T1 = U then T2 else err_appl "Incompatible operand type" bs t T u U
wenzelm@14828
   407
            | _ => err_appl "Operator not of function type" bs t T u U)
wenzelm@4961
   408
          end;
wenzelm@18967
   409
  in typ_of ([], tm) end;
wenzelm@4961
   410
wenzelm@18967
   411
fun err msg = raise TYPE (msg, [], []);
wenzelm@18967
   412
wenzelm@18967
   413
fun check_vars (t $ u) = (check_vars t; check_vars u)
wenzelm@18967
   414
  | check_vars (Abs (_, _, t)) = check_vars t
wenzelm@18967
   415
  | check_vars (Var (xi as (_, i), _)) =
wenzelm@18967
   416
      if i < 0 then err ("Malformed variable: " ^ quote (Term.string_of_vname xi)) else ()
wenzelm@18967
   417
  | check_vars _ = ();
clasohm@0
   418
wenzelm@14987
   419
in
wenzelm@14987
   420
wenzelm@24674
   421
fun certify' prop pp do_expand consts thy tm =
wenzelm@251
   422
  let
wenzelm@18967
   423
    val _ = check_vars tm;
wenzelm@20548
   424
    val tm' = Term.map_types (certify_typ thy) tm;
wenzelm@18967
   425
    val T = type_check pp tm';
wenzelm@18967
   426
    val _ = if prop andalso T <> propT then err "Term not of type prop" else ();
wenzelm@24674
   427
    val tm'' = Consts.certify pp (tsig_of thy) do_expand consts tm';
wenzelm@18967
   428
  in (if tm = tm'' then tm else tm'', T, Term.maxidx_of_term tm'') end;
wenzelm@169
   429
wenzelm@24674
   430
fun certify_term thy = certify' false (pp thy) true (consts_of thy) thy;
wenzelm@24674
   431
fun certify_prop thy = certify' true (pp thy) true (consts_of thy) thy;
wenzelm@18967
   432
wenzelm@24674
   433
fun cert_term_abbrev thy = #1 o certify' false (pp thy) false (consts_of thy) thy;
wenzelm@18967
   434
val cert_term = #1 oo certify_term;
wenzelm@18967
   435
val cert_prop = #1 oo certify_prop;
wenzelm@251
   436
wenzelm@14987
   437
end;
wenzelm@14987
   438
wenzelm@251
   439
wenzelm@18941
   440
(* specifications *)
wenzelm@18941
   441
wenzelm@21741
   442
fun no_variables kind add addT mk mkT pp tm =
wenzelm@21741
   443
  (case (add tm [], addT tm []) of
wenzelm@18941
   444
    ([], []) => tm
wenzelm@21741
   445
  | (frees, tfrees) => error (Pretty.string_of (Pretty.block (Pretty.breaks
wenzelm@21741
   446
      (Pretty.str ("Illegal " ^ kind ^ " variable(s) in term:") ::
wenzelm@21741
   447
       map (Pretty.term pp o mk) frees @ map (Pretty.typ pp o mkT) tfrees)))));
wenzelm@21741
   448
wenzelm@21741
   449
val no_frees = no_variables "free" Term.add_frees Term.add_tfrees Free TFree;
wenzelm@21741
   450
val no_vars = no_variables "schematic" Term.add_vars Term.add_tvars Var TVar;
wenzelm@18941
   451
wenzelm@24981
   452
fun cert_def ctxt tm =
wenzelm@18941
   453
  let val ((lhs, rhs), _) = tm
wenzelm@24981
   454
    |> no_vars (Syntax.pp ctxt)
wenzelm@18941
   455
    |> Logic.strip_imp_concl
wenzelm@24981
   456
    |> PrimitiveDefs.dest_def ctxt Term.is_Const (K false) (K false)
wenzelm@18941
   457
  in (Term.dest_Const (Term.head_of lhs), rhs) end
wenzelm@18941
   458
  handle TERM (msg, _) => error msg;
wenzelm@18941
   459
wenzelm@18941
   460
wenzelm@16337
   461
wenzelm@16442
   462
(** read and certify entities **)    (*exception ERROR*)
wenzelm@16337
   463
wenzelm@24273
   464
(* classes *)
wenzelm@19244
   465
wenzelm@19427
   466
fun read_class thy c = certify_class thy (intern_class thy c)
wenzelm@19427
   467
  handle TYPE (msg, _, _) => error msg;
wenzelm@16337
   468
wenzelm@16337
   469
wenzelm@19244
   470
(* type arities *)
wenzelm@19244
   471
wenzelm@19244
   472
fun prep_arity prep_tycon prep_sort thy (t, Ss, S) =
wenzelm@19244
   473
  let val arity = (prep_tycon thy t, map (prep_sort thy) Ss, prep_sort thy S)
wenzelm@19513
   474
  in Type.add_arity (pp thy) arity (tsig_of thy); arity end;
wenzelm@19244
   475
wenzelm@24707
   476
val read_arity = prep_arity intern_type Syntax.read_sort_global;
wenzelm@19244
   477
val cert_arity = prep_arity (K I) certify_sort;
wenzelm@19244
   478
wenzelm@19244
   479
wenzelm@16337
   480
(* types *)
wenzelm@16337
   481
wenzelm@22765
   482
fun get_sort thy def_sort raw_env =
wenzelm@22696
   483
  let
wenzelm@22765
   484
    val tsig = tsig_of thy;
wenzelm@22765
   485
wenzelm@22696
   486
    fun eq ((xi, S), (xi', S')) =
wenzelm@22696
   487
      Term.eq_ix (xi, xi') andalso Type.eq_sort tsig (S, S');
wenzelm@22696
   488
    val env = distinct eq raw_env;
wenzelm@22696
   489
    val _ = (case duplicates (eq_fst (op =)) env of [] => ()
wenzelm@22696
   490
      | dups => error ("Inconsistent sort constraints for type variable(s) "
wenzelm@22696
   491
          ^ commas_quote (map (Term.string_of_vname' o fst) dups)));
wenzelm@22696
   492
wenzelm@22696
   493
    fun get xi =
wenzelm@22696
   494
      (case (AList.lookup (op =) env xi, def_sort xi) of
wenzelm@22696
   495
        (NONE, NONE) => Type.defaultS tsig
wenzelm@22696
   496
      | (NONE, SOME S) => S
wenzelm@22696
   497
      | (SOME S, NONE) => S
wenzelm@22696
   498
      | (SOME S, SOME S') =>
wenzelm@22696
   499
          if Type.eq_sort tsig (S, S') then S'
wenzelm@22696
   500
          else error ("Sort constraint inconsistent with default for type variable " ^
wenzelm@22696
   501
            quote (Term.string_of_vname' xi)));
wenzelm@22696
   502
  in get end;
wenzelm@22696
   503
wenzelm@16337
   504
local
wenzelm@16337
   505
wenzelm@24273
   506
fun gen_read_typ mode (thy, def_sort) str =
wenzelm@16337
   507
  let
wenzelm@24273
   508
    val ctxt = ProofContext.init thy;
wenzelm@24273
   509
    val syn = syn_of thy;
wenzelm@22696
   510
    val T = intern_tycons thy
wenzelm@24273
   511
      (Syntax.standard_parse_typ ctxt syn (get_sort thy def_sort) (intern_sort thy) str);
wenzelm@24273
   512
  in certify_typ_mode mode thy T handle TYPE (msg, _, _) => error msg end
wenzelm@18678
   513
  handle ERROR msg => cat_error msg ("The error(s) above occurred in type " ^ quote str);
wenzelm@16337
   514
wenzelm@16337
   515
in
wenzelm@16337
   516
wenzelm@16442
   517
fun no_def_sort thy = (thy: theory, K NONE);
wenzelm@16337
   518
wenzelm@24273
   519
val read_def_typ     = gen_read_typ Type.mode_default;
wenzelm@24273
   520
val read_typ         = gen_read_typ Type.mode_default o no_def_sort;
wenzelm@24273
   521
val read_typ_syntax  = gen_read_typ Type.mode_syntax o no_def_sort;
wenzelm@24273
   522
val read_typ_abbrev  = gen_read_typ Type.mode_abbrev o no_def_sort;
wenzelm@16337
   523
wenzelm@16337
   524
end;
wenzelm@16337
   525
wenzelm@16337
   526
wenzelm@16368
   527
(* type and constant names *)
wenzelm@15703
   528
wenzelm@16442
   529
fun read_tyname thy raw_c =
wenzelm@19462
   530
  let val c = intern_type thy raw_c
wenzelm@19462
   531
  in Type (c, replicate (arity_number thy c) dummyT) end;
wenzelm@15703
   532
wenzelm@18967
   533
val read_const = Consts.read_const o consts_of;
wenzelm@15703
   534
wenzelm@15703
   535
wenzelm@251
   536
wenzelm@22696
   537
(* read_def_terms -- read terms and infer types *)    (*exception ERROR*)
wenzelm@251
   538
wenzelm@2979
   539
(*
wenzelm@16337
   540
  def_type: partial map from indexnames to types (constrains Frees and Vars)
wenzelm@16337
   541
  def_sort: partial map from indexnames to sorts (constrains TFrees and TVars)
wenzelm@20155
   542
  used: context of already used type variables
wenzelm@2979
   543
  freeze: if true then generated parameters are turned into TFrees, else TVars
wenzelm@2979
   544
*)
wenzelm@2979
   545
wenzelm@24233
   546
fun read_def_terms'
wenzelm@24233
   547
    pp is_logtype syn consts map_free ctxt (def_type, def_sort) used freeze raw_args =
wenzelm@251
   548
  let
wenzelm@22696
   549
    val thy = ProofContext.theory_of ctxt;
wenzelm@24517
   550
    fun check_typs Ts = map (certify_typ thy) Ts
wenzelm@24517
   551
      handle TYPE (msg, _, _) => error msg;
wenzelm@22696
   552
wenzelm@24485
   553
    fun infer args = TypeInfer.infer_types pp (tsig_of thy) check_typs
wenzelm@24761
   554
        (try (Consts.the_constraint consts)) def_type used ~1 (SOME freeze) args |>> map fst
wenzelm@24233
   555
      handle TYPE (msg, _, _) => error msg;
wenzelm@22696
   556
wenzelm@24370
   557
    fun check T t = Exn.Result (singleton (fst o infer) (t, T))
wenzelm@24370
   558
      handle ERROR msg => Exn.Exn (ERROR msg);
wenzelm@24233
   559
    val map_const = try (#1 o Term.dest_Const o Consts.read_const consts);
wenzelm@24370
   560
    fun read T = Syntax.standard_parse_term pp (check T) (get_sort thy def_sort) map_const map_free
wenzelm@24233
   561
        (intern_tycons thy) (intern_sort thy) ctxt is_logtype syn T;
wenzelm@4249
   562
  in
wenzelm@24233
   563
    raw_args
wenzelm@24233
   564
    |> map (fn (s, raw_T) =>
wenzelm@24233
   565
      let val T = certify_typ thy raw_T handle TYPE (msg, _, _) => error msg
wenzelm@24233
   566
      in (read (#1 (TypeInfer.paramify_dummies T 0)) s, T) end)
wenzelm@24233
   567
    |> infer
wenzelm@4249
   568
  end;
clasohm@623
   569
wenzelm@20230
   570
fun read_def_terms (thy, types, sorts) used freeze sTs =
wenzelm@20230
   571
  let
wenzelm@20230
   572
    val pp = pp thy;
wenzelm@20230
   573
    val consts = consts_of thy;
wenzelm@24674
   574
    val cert_consts = Consts.certify pp (tsig_of thy) true consts;
wenzelm@22765
   575
    fun map_free x = if is_some (types (x, ~1)) then SOME x else NONE;
wenzelm@20230
   576
    val (ts, inst) =
wenzelm@22765
   577
      read_def_terms' pp (is_logtype thy) (syn_of thy) consts map_free
wenzelm@21772
   578
        (ProofContext.init thy) (types, sorts) (Name.make_context used) freeze sTs;
wenzelm@20230
   579
  in (map cert_consts ts, inst) end;
wenzelm@12068
   580
wenzelm@16442
   581
fun simple_read_term thy T s =
wenzelm@16442
   582
  let val ([t], _) = read_def_terms (thy, K NONE, K NONE) [] true [(s, T)]
wenzelm@20230
   583
  in t end handle ERROR msg => cat_error msg ("The error(s) above occurred for term " ^ s);
wenzelm@8802
   584
wenzelm@22709
   585
fun read_term thy = simple_read_term thy dummyT;
wenzelm@16494
   586
fun read_prop thy = simple_read_term thy propT;
wenzelm@16494
   587
wenzelm@8607
   588
wenzelm@2979
   589
wenzelm@16337
   590
(** signature extension functions **)  (*exception ERROR/TYPE*)
wenzelm@386
   591
wenzelm@386
   592
(* add default sort *)
wenzelm@386
   593
wenzelm@16442
   594
fun gen_add_defsort prep_sort s thy =
wenzelm@16442
   595
  thy |> map_tsig (Type.set_defsort (prep_sort thy s));
wenzelm@8898
   596
wenzelm@24707
   597
val add_defsort = gen_add_defsort Syntax.read_sort_global;
wenzelm@16337
   598
val add_defsort_i = gen_add_defsort certify_sort;
wenzelm@386
   599
wenzelm@386
   600
wenzelm@386
   601
(* add type constructors *)
wenzelm@386
   602
wenzelm@16442
   603
fun add_types types thy = thy |> map_sign (fn (naming, syn, tsig, consts) =>
wenzelm@14856
   604
  let
wenzelm@16597
   605
    val syn' = Syntax.extend_type_gram types syn;
wenzelm@16368
   606
    val decls = map (fn (a, n, mx) => (Syntax.type_name a mx, n)) types;
wenzelm@16442
   607
    val tsig' = Type.add_types naming decls tsig;
wenzelm@16442
   608
  in (naming, syn', tsig', consts) end);
wenzelm@16442
   609
wenzelm@16442
   610
fun add_typedecls decls thy =
wenzelm@16442
   611
  let
wenzelm@20664
   612
    fun type_of (a, vs: string list, mx) =
haftmann@18928
   613
      if not (has_duplicates (op =) vs) then (a, length vs, mx)
wenzelm@16442
   614
      else error ("Duplicate parameters in type declaration: " ^ quote a);
wenzelm@16442
   615
  in add_types (map type_of decls) thy end;
wenzelm@16337
   616
wenzelm@16337
   617
wenzelm@16337
   618
(* add nonterminals *)
wenzelm@16337
   619
wenzelm@16442
   620
fun add_nonterminals ns thy = thy |> map_sign (fn (naming, syn, tsig, consts) =>
wenzelm@16337
   621
  let
wenzelm@16597
   622
    val syn' = Syntax.extend_consts ns syn;
wenzelm@16442
   623
    val tsig' = Type.add_nonterminals naming ns tsig;
wenzelm@16442
   624
  in (naming, syn', tsig', consts) end);
wenzelm@386
   625
wenzelm@386
   626
wenzelm@386
   627
(* add type abbreviations *)
wenzelm@386
   628
wenzelm@16442
   629
fun gen_add_tyabbr prep_typ (a, vs, rhs, mx) thy =
wenzelm@16442
   630
  thy |> map_sign (fn (naming, syn, tsig, consts) =>
wenzelm@16337
   631
    let
wenzelm@16597
   632
      val syn' = Syntax.extend_type_gram [(a, length vs, mx)] syn;
wenzelm@16368
   633
      val a' = Syntax.type_name a mx;
wenzelm@24707
   634
      val abbr = (a', vs,
wenzelm@24707
   635
          certify_typ_mode Type.mode_syntax thy (prep_typ (ProofContext.init thy) rhs))
wenzelm@18678
   636
        handle ERROR msg => cat_error msg ("in type abbreviation " ^ quote a');
wenzelm@16442
   637
      val tsig' = Type.add_abbrevs naming [abbr] tsig;
wenzelm@16442
   638
    in (naming, syn', tsig', consts) end);
wenzelm@386
   639
wenzelm@24707
   640
val add_tyabbrs = fold (gen_add_tyabbr Syntax.parse_typ);
wenzelm@24273
   641
val add_tyabbrs_i = fold (gen_add_tyabbr (K I));
wenzelm@14784
   642
wenzelm@14784
   643
wenzelm@16337
   644
(* modify syntax *)
wenzelm@16337
   645
wenzelm@20784
   646
fun gen_syntax change_gram prep_typ mode args thy =
wenzelm@16337
   647
  let
wenzelm@24707
   648
    fun prep (c, T, mx) = (c,
wenzelm@24707
   649
        certify_typ_mode Type.mode_syntax thy (prep_typ (ProofContext.init thy) T), mx)
wenzelm@24273
   650
      handle ERROR msg =>
wenzelm@24273
   651
        cat_error msg ("in syntax declaration " ^ quote (Syntax.const_name c mx));
wenzelm@20784
   652
  in thy |> map_syn (change_gram (is_logtype thy) mode (map prep args)) end;
wenzelm@16337
   653
wenzelm@16337
   654
fun gen_add_syntax x = gen_syntax Syntax.extend_const_gram x;
wenzelm@386
   655
wenzelm@24707
   656
val add_modesyntax = gen_add_syntax Syntax.parse_typ;
wenzelm@24273
   657
val add_modesyntax_i = gen_add_syntax (K I);
wenzelm@24959
   658
val add_syntax = add_modesyntax Syntax.mode_default;
wenzelm@24959
   659
val add_syntax_i = add_modesyntax_i Syntax.mode_default;
wenzelm@24707
   660
val del_modesyntax = gen_syntax Syntax.remove_const_gram Syntax.parse_typ;
wenzelm@24273
   661
val del_modesyntax_i = gen_syntax Syntax.remove_const_gram (K I);
wenzelm@3805
   662
wenzelm@21661
   663
fun const_syntax thy (Const (c, _), mx) = try (Consts.syntax (consts_of thy)) (c, mx)
wenzelm@21206
   664
  | const_syntax _ _ = NONE;
wenzelm@21206
   665
wenzelm@24949
   666
fun notation add mode args thy = thy
wenzelm@24949
   667
  |> (if add then add_modesyntax_i else del_modesyntax_i) mode (map_filter (const_syntax thy) args);
wenzelm@19658
   668
wenzelm@16337
   669
wenzelm@16337
   670
(* add constants *)
wenzelm@386
   671
wenzelm@17995
   672
local
wenzelm@17995
   673
wenzelm@24776
   674
fun gen_add_consts prep_typ authentic tags raw_args thy =
wenzelm@386
   675
  let
wenzelm@24959
   676
    val prepT = Type.no_tvars o Term.no_dummyT o prep_typ thy;
wenzelm@19658
   677
    fun prep (raw_c, raw_T, raw_mx) =
wenzelm@19658
   678
      let
wenzelm@19658
   679
        val (c, mx) = Syntax.const_mixfix raw_c raw_mx;
wenzelm@24959
   680
        val full_c = full_name thy c;
wenzelm@24959
   681
        val c' = if authentic then Syntax.constN ^ full_c else c;
wenzelm@19658
   682
        val T = (prepT raw_T handle TYPE (msg, _, _) => error msg) handle ERROR msg =>
wenzelm@19658
   683
          cat_error msg ("in declaration of constant " ^ quote c);
wenzelm@24959
   684
        val T' = Compress.typ thy (Logic.varifyT T);
wenzelm@24959
   685
      in ((c, T'), (c', T', mx), Const (full_c, T)) end;
wenzelm@16337
   686
    val args = map prep raw_args;
wenzelm@16442
   687
  in
wenzelm@16442
   688
    thy
wenzelm@24776
   689
    |> map_consts (fold (Consts.declare authentic (naming_of thy) tags o #1) args)
wenzelm@19658
   690
    |> add_syntax_i (map #2 args)
wenzelm@24959
   691
    |> pair (map #3 args)
wenzelm@16442
   692
  end;
wenzelm@386
   693
wenzelm@17995
   694
in
wenzelm@17995
   695
wenzelm@24959
   696
val add_consts = snd oo gen_add_consts read_typ false [];
wenzelm@24959
   697
val add_consts_i = snd oo gen_add_consts certify_typ false [];
wenzelm@24959
   698
wenzelm@24959
   699
fun declare_const tags arg = gen_add_consts certify_typ true tags [arg] #>> the_single;
wenzelm@386
   700
wenzelm@17995
   701
end;
wenzelm@17995
   702
wenzelm@386
   703
wenzelm@25049
   704
(* abbreviations *)
wenzelm@18941
   705
wenzelm@24776
   706
fun add_abbrev mode tags (c, raw_t) thy =
wenzelm@18941
   707
  let
wenzelm@21741
   708
    val pp = pp thy;
wenzelm@25049
   709
    val prep_tm = Compress.term thy o no_frees pp o Term.no_dummy_patterns o cert_term_abbrev thy;
wenzelm@19806
   710
    val t = (prep_tm raw_t handle TYPE (msg, _, _) => error msg | TERM (msg, _) => error msg)
wenzelm@19366
   711
      handle ERROR msg => cat_error msg ("in constant abbreviation " ^ quote c);
wenzelm@21696
   712
    val (res, consts') = consts_of thy
wenzelm@24776
   713
      |> Consts.abbreviate pp (tsig_of thy) (naming_of thy) mode tags (c, t);
wenzelm@25049
   714
  in (res, thy |> map_consts (K consts')) end;
wenzelm@25049
   715
wenzelm@25049
   716
fun revert_abbrev mode c = map_consts (Consts.revert_abbrev mode c);
wenzelm@18941
   717
wenzelm@18941
   718
wenzelm@16941
   719
(* add constraints *)
wenzelm@16941
   720
wenzelm@24761
   721
fun add_const_constraint (c, opt_T) thy =
wenzelm@16941
   722
  let
wenzelm@19099
   723
    fun prepT raw_T =
wenzelm@24761
   724
      let val T = Logic.varifyT (Type.no_tvars (Term.no_dummyT (certify_typ thy raw_T)))
wenzelm@19099
   725
      in cert_term thy (Const (c, T)); T end
wenzelm@16941
   726
      handle TYPE (msg, _, _) => error msg;
wenzelm@19099
   727
  in thy |> map_consts (Consts.constrain (c, Option.map prepT opt_T)) end;
wenzelm@16941
   728
wenzelm@16941
   729
wenzelm@19513
   730
(* primitive classes and arities *)
wenzelm@386
   731
wenzelm@19513
   732
fun primitive_class (bclass, classes) thy =
wenzelm@16442
   733
  thy |> map_sign (fn (naming, syn, tsig, consts) =>
wenzelm@16337
   734
    let
wenzelm@16597
   735
      val syn' = Syntax.extend_consts [bclass] syn;
wenzelm@19513
   736
      val tsig' = Type.add_class (pp thy) naming (bclass, classes) tsig;
wenzelm@16442
   737
    in (naming, syn', tsig', consts) end)
wenzelm@19391
   738
  |> add_consts_i [(Logic.const_of_class bclass, Term.a_itselfT --> propT, NoSyn)];
wenzelm@3791
   739
wenzelm@19513
   740
fun primitive_classrel arg thy = thy |> map_tsig (Type.add_classrel (pp thy) arg);
wenzelm@19513
   741
fun primitive_arity arg thy = thy |> map_tsig (Type.add_arity (pp thy) arg);
wenzelm@421
   742
wenzelm@421
   743
wenzelm@14645
   744
(* add translation functions *)
wenzelm@14645
   745
wenzelm@15746
   746
local
wenzelm@15746
   747
wenzelm@15746
   748
fun mk trs = map Syntax.mk_trfun trs;
wenzelm@15746
   749
wenzelm@16597
   750
fun gen_add_trfuns ext non_typed (atrs, trs, tr's, atr's) =
wenzelm@16597
   751
  map_syn (ext (mk atrs, mk trs, mk (map (apsnd non_typed) tr's), mk atr's));
wenzelm@14645
   752
wenzelm@16597
   753
fun gen_add_trfunsT ext tr's = map_syn (ext ([], [], mk tr's, []));
wenzelm@14645
   754
wenzelm@15746
   755
in
wenzelm@15746
   756
wenzelm@16597
   757
val add_trfuns = gen_add_trfuns Syntax.extend_trfuns Syntax.non_typed_tr';
wenzelm@16597
   758
val add_trfunsT = gen_add_trfunsT Syntax.extend_trfuns;
wenzelm@16597
   759
val add_advanced_trfuns = gen_add_trfuns Syntax.extend_advanced_trfuns Syntax.non_typed_tr'';
wenzelm@16597
   760
val add_advanced_trfunsT = gen_add_trfunsT Syntax.extend_advanced_trfuns;
wenzelm@14645
   761
wenzelm@15746
   762
end;
wenzelm@15746
   763
wenzelm@16597
   764
val add_tokentrfuns = map_syn o Syntax.extend_tokentrfuns;
wenzelm@16442
   765
fun add_mode_tokentrfuns m = add_tokentrfuns o map (fn (s, f) => (m, s, f));
wenzelm@14645
   766
wenzelm@14645
   767
wenzelm@19258
   768
(* translation rules *)
wenzelm@4619
   769
wenzelm@19258
   770
fun gen_trrules f args thy = thy |> map_syn (fn syn =>
wenzelm@16442
   771
  let val rules = map (Syntax.map_trrule (apfst (intern_type thy))) args
wenzelm@21772
   772
  in f (ProofContext.init thy) (is_logtype thy) syn rules syn end);
wenzelm@8725
   773
wenzelm@19258
   774
val add_trrules = gen_trrules Syntax.extend_trrules;
wenzelm@19258
   775
val del_trrules = gen_trrules Syntax.remove_trrules;
wenzelm@16597
   776
val add_trrules_i = map_syn o Syntax.extend_trrules_i;
wenzelm@19258
   777
val del_trrules_i = map_syn o Syntax.remove_trrules_i;
wenzelm@386
   778
wenzelm@386
   779
wenzelm@16337
   780
(* modify naming *)
wenzelm@6546
   781
wenzelm@19054
   782
val add_path        = map_naming o NameSpace.add_path;
wenzelm@19054
   783
val no_base_names   = map_naming NameSpace.no_base_names;
wenzelm@19054
   784
val qualified_names = map_naming NameSpace.qualified_names;
wenzelm@19054
   785
val sticky_prefix   = map_naming o NameSpace.sticky_prefix;
wenzelm@19054
   786
val restore_naming  = map_naming o K o naming_of;
wenzelm@6546
   787
wenzelm@19013
   788
val parent_path   = add_path "..";
wenzelm@19013
   789
val root_path     = add_path "/";
wenzelm@19013
   790
val absolute_path = add_path "//";
wenzelm@16442
   791
wenzelm@16442
   792
fun local_path thy = thy |> root_path |> add_path (Context.theory_name thy);
wenzelm@16442
   793
wenzelm@6546
   794
wenzelm@16337
   795
(* hide names *)
wenzelm@386
   796
wenzelm@16442
   797
fun hide_classes b xs thy = thy |> map_tsig (Type.hide_classes b (map (intern_class thy) xs));
wenzelm@16368
   798
val hide_classes_i = map_tsig oo Type.hide_classes;
wenzelm@16442
   799
fun hide_types b xs thy = thy |> map_tsig (Type.hide_types b (map (intern_type thy) xs));
wenzelm@16368
   800
val hide_types_i = map_tsig oo Type.hide_types;
wenzelm@18062
   801
fun hide_consts b xs thy = thy |> map_consts (fold (Consts.hide b o intern_const thy) xs);
wenzelm@18062
   802
val hide_consts_i = map_consts oo (fold o Consts.hide);
wenzelm@386
   803
wenzelm@17343
   804
local
wenzelm@17343
   805
wenzelm@17343
   806
val kinds =
wenzelm@17343
   807
 [("class", (intern_class, can o certify_class, hide_classes_i)),
wenzelm@17343
   808
  ("type", (intern_type, declared_tyname, hide_types_i)),
wenzelm@17343
   809
  ("const", (intern_const, declared_const, hide_consts_i))];
wenzelm@17343
   810
wenzelm@17343
   811
fun gen_hide int b (kind, xnames) thy =
wenzelm@17343
   812
  (case AList.lookup (op =) kinds kind of
wenzelm@17343
   813
    SOME (intern, check, hide) =>
wenzelm@17343
   814
      let
wenzelm@17343
   815
        val names = if int then map (intern thy) xnames else xnames;
wenzelm@17343
   816
        val bads = filter_out (check thy) names;
wenzelm@17343
   817
      in
wenzelm@17343
   818
        if null bads then hide b names thy
wenzelm@17343
   819
        else error ("Attempt to hide undeclared item(s): " ^ commas_quote bads)
wenzelm@17343
   820
      end
wenzelm@17343
   821
  | NONE => error ("Bad name space specification: " ^ quote kind));
wenzelm@17343
   822
wenzelm@17343
   823
in
wenzelm@17343
   824
wenzelm@17343
   825
val hide_names = gen_hide true;
wenzelm@17343
   826
val hide_names_i = gen_hide false;
wenzelm@17343
   827
clasohm@0
   828
end;
wenzelm@17343
   829
wenzelm@17343
   830
end;