simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
added command 'print_ML_antiquotations';
(* Title: Pure/ML/ml_antiquote.ML
Author: Makarius
Common ML antiquotations.
*)
signature ML_ANTIQUOTE =
sig
val variant: string -> Proof.context -> string * Proof.context
val inline: binding -> string context_parser -> theory -> theory
val value: binding -> string context_parser -> theory -> theory
end;
structure ML_Antiquote: ML_ANTIQUOTE =
struct
(** generic tools **)
(* ML names *)
val init_context = ML_Syntax.reserved |> Name.declare "ML_context";
structure Names = Proof_Data
(
type T = Name.context;
fun init _ = init_context;
);
fun variant a ctxt =
let
val names = Names.get ctxt;
val (b, names') = Name.variant (Name.desymbolize false a) names;
val ctxt' = Names.put names' ctxt;
in (b, ctxt') end;
(* specific antiquotations *)
fun inline name scan =
ML_Context.antiquotation name scan (fn _ => fn s => fn ctxt => (K ("", s), ctxt));
fun value name scan =
ML_Context.antiquotation name scan (fn _ => fn s => fn ctxt =>
let
val (a, ctxt') = variant (Binding.name_of name) ctxt;
val env = "val " ^ a ^ " = " ^ s ^ ";\n";
val body = "Isabelle." ^ a;
in (K (env, body), ctxt') end);
(** misc antiquotations **)
val _ = Theory.setup
(inline (Binding.name "assert")
(Scan.succeed "(fn b => if b then () else raise General.Fail \"Assertion failed\")") #>
inline (Binding.name "make_string") (Scan.succeed ml_make_string) #>
value (Binding.name "option") (Scan.lift (Parse.position Args.name) >> (fn (name, pos) =>
(Options.default_typ name handle ERROR msg => error (msg ^ Position.here pos);
ML_Syntax.print_string name))) #>
value (Binding.name "binding")
(Scan.lift (Parse.position Args.name) >> ML_Syntax.make_binding) #>
value (Binding.name "theory")
(Args.context -- Scan.lift (Parse.position Args.name) >> (fn (ctxt, (name, pos)) =>
(Context_Position.report ctxt pos
(Theory.get_markup (Context.get_theory (Proof_Context.theory_of ctxt) name));
"Context.get_theory (Proof_Context.theory_of ML_context) " ^ ML_Syntax.print_string name))
|| Scan.succeed "Proof_Context.theory_of ML_context") #>
value (Binding.name "theory_context")
(Args.context -- Scan.lift (Parse.position Args.name) >> (fn (ctxt, (name, pos)) =>
(Context_Position.report ctxt pos
(Theory.get_markup (Context.get_theory (Proof_Context.theory_of ctxt) name));
"Proof_Context.get_global (Proof_Context.theory_of ML_context) " ^
ML_Syntax.print_string name))) #>
inline (Binding.name "context") (Scan.succeed "Isabelle.ML_context") #>
inline (Binding.name "typ") (Args.typ >> (ML_Syntax.atomic o ML_Syntax.print_typ)) #>
inline (Binding.name "term") (Args.term >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
inline (Binding.name "prop") (Args.prop >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
value (Binding.name "ctyp") (Args.typ >> (fn T =>
"Thm.ctyp_of (Proof_Context.theory_of ML_context) " ^
ML_Syntax.atomic (ML_Syntax.print_typ T))) #>
value (Binding.name "cterm") (Args.term >> (fn t =>
"Thm.cterm_of (Proof_Context.theory_of ML_context) " ^
ML_Syntax.atomic (ML_Syntax.print_term t))) #>
value (Binding.name "cprop") (Args.prop >> (fn t =>
"Thm.cterm_of (Proof_Context.theory_of ML_context) " ^
ML_Syntax.atomic (ML_Syntax.print_term t))) #>
value (Binding.name "cpat")
(Args.context --
Scan.lift Args.name_inner_syntax >> uncurry Proof_Context.read_term_pattern >> (fn t =>
"Thm.cterm_of (Proof_Context.theory_of ML_context) " ^
ML_Syntax.atomic (ML_Syntax.print_term t))));
(* type classes *)
fun class syn = Args.context -- Scan.lift Args.name_inner_syntax >> (fn (ctxt, s) =>
Proof_Context.read_class ctxt s
|> syn ? Lexicon.mark_class
|> ML_Syntax.print_string);
val _ = Theory.setup
(inline (Binding.name "class") (class false) #>
inline (Binding.name "class_syntax") (class true) #>
inline (Binding.name "sort")
(Args.context -- Scan.lift Args.name_inner_syntax >> (fn (ctxt, s) =>
ML_Syntax.atomic (ML_Syntax.print_sort (Syntax.read_sort ctxt s)))));
(* type constructors *)
fun type_name kind check = Args.context -- Scan.lift (Parse.position Args.name_inner_syntax)
>> (fn (ctxt, (s, pos)) =>
let
val Type (c, _) = Proof_Context.read_type_name {proper = true, strict = false} ctxt s;
val decl = Type.the_decl (Proof_Context.tsig_of ctxt) (c, pos);
val res =
(case try check (c, decl) of
SOME res => res
| NONE => error ("Not a " ^ kind ^ ": " ^ quote c ^ Position.here pos));
in ML_Syntax.print_string res end);
val _ = Theory.setup
(inline (Binding.name "type_name")
(type_name "logical type" (fn (c, Type.LogicalType _) => c)) #>
inline (Binding.name "type_abbrev")
(type_name "type abbreviation" (fn (c, Type.Abbreviation _) => c)) #>
inline (Binding.name "nonterminal")
(type_name "nonterminal" (fn (c, Type.Nonterminal) => c)) #>
inline (Binding.name "type_syntax")
(type_name "type" (fn (c, _) => Lexicon.mark_type c)));
(* constants *)
fun const_name check = Args.context -- Scan.lift (Parse.position Args.name_inner_syntax)
>> (fn (ctxt, (s, pos)) =>
let
val Const (c, _) = Proof_Context.read_const {proper = true, strict = false} ctxt s;
val res = check (Proof_Context.consts_of ctxt, c)
handle TYPE (msg, _, _) => error (msg ^ Position.here pos);
in ML_Syntax.print_string res end);
val _ = Theory.setup
(inline (Binding.name "const_name")
(const_name (fn (consts, c) => (Consts.the_const consts c; c))) #>
inline (Binding.name "const_abbrev")
(const_name (fn (consts, c) => (Consts.the_abbreviation consts c; c))) #>
inline (Binding.name "const_syntax")
(const_name (fn (_, c) => Lexicon.mark_const c)) #>
inline (Binding.name "syntax_const")
(Args.context -- Scan.lift (Parse.position Args.name) >> (fn (ctxt, (c, pos)) =>
if is_some (Syntax.lookup_const (Proof_Context.syn_of ctxt) c)
then ML_Syntax.print_string c
else error ("Unknown syntax const: " ^ quote c ^ Position.here pos))) #>
inline (Binding.name "const")
(Args.context -- Scan.lift Args.name_inner_syntax -- Scan.optional
(Scan.lift (Args.$$$ "(") |-- Parse.enum1' "," Args.typ --| Scan.lift (Args.$$$ ")")) []
>> (fn ((ctxt, raw_c), Ts) =>
let
val Const (c, _) =
Proof_Context.read_const {proper = true, strict = true} ctxt raw_c;
val consts = Proof_Context.consts_of ctxt;
val n = length (Consts.typargs consts (c, Consts.type_scheme consts c));
val _ = length Ts <> n andalso
error ("Constant requires " ^ string_of_int n ^ " type argument(s): " ^
quote c ^ enclose "(" ")" (commas (replicate n "_")));
val const = Const (c, Consts.instance consts (c, Ts));
in ML_Syntax.atomic (ML_Syntax.print_term const) end)));
(* outer syntax *)
fun with_keyword f =
Args.theory -- Scan.lift (Parse.position Parse.string) >> (fn (thy, (name, pos)) =>
(f ((name, Thy_Header.the_keyword thy name), pos)
handle ERROR msg => error (msg ^ Position.here pos)));
val _ = Theory.setup
(value (Binding.name "keyword")
(with_keyword
(fn ((name, NONE), _) => "Parse.$$$ " ^ ML_Syntax.print_string name
| ((name, SOME _), pos) =>
error ("Expected minor keyword " ^ quote name ^ Position.here pos))) #>
value (Binding.name "command_spec")
(with_keyword
(fn ((name, SOME kind), pos) =>
"Keyword.command_spec " ^ ML_Syntax.atomic
((ML_Syntax.print_pair
(ML_Syntax.print_pair ML_Syntax.print_string
(ML_Syntax.print_pair
(ML_Syntax.print_pair ML_Syntax.print_string
(ML_Syntax.print_list ML_Syntax.print_string))
(ML_Syntax.print_list ML_Syntax.print_string)))
ML_Syntax.print_position) ((name, kind), pos))
| ((name, NONE), pos) =>
error ("Expected command keyword " ^ quote name ^ Position.here pos))));
end;