--- a/src/Pure/Tools/codegen_names.ML Sat Feb 10 09:26:23 2007 +0100
+++ b/src/Pure/Tools/codegen_names.ML Sat Feb 10 09:26:24 2007 +0100
@@ -3,12 +3,20 @@
Author: Florian Haftmann, TU Muenchen
Naming policies for code generation: prefixing any name by corresponding theory name,
-conversion to alphanumeric representation, name space identifier.
+conversion to alphanumeric representation.
Mappings are incrementally cached.
*)
signature CODEGEN_NAMES =
sig
+ val purify_var: string -> string
+ val purify_tvar: string -> string
+ val check_modulename: string -> string
+ type var_ctxt;
+ val make_vars: string list -> var_ctxt;
+ val intro_vars: string list -> var_ctxt -> var_ctxt;
+ val lookup_var: var_ctxt -> string -> string;
+
type tyco = string
type const = string
val class: theory -> class -> class
@@ -22,15 +30,6 @@
val const: theory -> CodegenConsts.const -> const
val const_rev: theory -> const -> CodegenConsts.const option
val labelled_name: theory -> string -> string
-
- val check_modulename: string -> string
- val purify_var: string -> string
- val purify_tvar: string -> string
-
- type var_ctxt;
- val make_vars: string list -> var_ctxt;
- val intro_vars: string list -> var_ctxt -> var_ctxt;
- val lookup_var: var_ctxt -> string -> string;
end;
structure CodegenNames: CODEGEN_NAMES =
@@ -76,6 +75,76 @@
val purify_upper = explode #> nth_map 0 Symbol.to_ascii_upper #> implode;
+fun purify_var "" = "x"
+ | purify_var v = (purify_name #> purify_lower) v;
+
+fun purify_tvar "" = "'a"
+ | purify_tvar v =
+ (unprefix "'" #> explode #> filter Symbol.is_ascii_letter #> cons "'" #> implode) v;
+
+fun check_modulename mn =
+ let
+ val mns = NameSpace.explode mn;
+ val mns' = map purify_upper mns;
+ in
+ if mns' = mns then mn else error ("Invalid module name: " ^ quote mn ^ "\n"
+ ^ "perhaps try " ^ quote (NameSpace.implode mns'))
+ end;
+
+
+(** variable name contexts **)
+
+type var_ctxt = string Symtab.table * Name.context;
+
+fun make_vars names = (fold (fn name => Symtab.update_new (name, name)) names Symtab.empty,
+ Name.make_context names);
+
+fun intro_vars names (namemap, namectxt) =
+ let
+ val (names', namectxt') = Name.variants names namectxt;
+ val namemap' = fold2 (curry Symtab.update) names names' namemap;
+ in (namemap', namectxt') end;
+
+fun lookup_var (namemap, _) name = case Symtab.lookup namemap name
+ of SOME name' => name'
+ | NONE => error ("Invalid name in context: " ^ quote name);
+
+
+(** identifier categories **)
+
+val idf_class = "class";
+val idf_classrel = "clsrel"
+val idf_tyco = "tyco";
+val idf_instance = "inst";
+val idf_const = "const";
+
+fun string_of_classrel (class, superclass) = class ^ " < " ^ superclass;
+fun string_of_instance (class, tyco) = tyco ^ " :: " ^ class;
+
+fun add_idf nsp name =
+ NameSpace.append name nsp;
+
+fun dest_idf nsp name =
+ if NameSpace.base name = nsp
+ then SOME (NameSpace.qualifier name)
+ else NONE;
+
+local
+
+val name_mapping = [
+ (idf_class, "class"),
+ (idf_classrel, "subclass relation"),
+ (idf_tyco, "type constructor"),
+ (idf_instance, "instance"),
+ (idf_const, "constant")
+]
+
+in
+
+val category_of = the o AList.lookup (op =) name_mapping o NameSpace.base;
+
+end;
+
(** global names (identifiers) **)
@@ -133,7 +202,7 @@
(fn (class, classrel, tyco, inst, const) => (class, f classrel, tyco, inst, const));
fun map_tyco f = map_names
(fn (class, classrel, tyco, inst, const) => (class, classrel, f tyco, inst, const));
- fun map_inst f = map_names
+ fun map_instance f = map_names
(fn (class, classrel, tyco, inst, const) => (class, classrel, tyco, f inst, const));
fun map_const f = map_names
(fn (class, classrel, tyco, inst, const) => (class, classrel, tyco, inst, f const));
@@ -178,14 +247,14 @@
(* backward lookup *)
-fun rev thy get_tabs errname name =
+fun rev thy get_tabs name =
let
val names_ref = CodeName.get thy
val (Names names) = ! names_ref;
val tab = (snd o get_tabs) names;
in case Symtab.lookup tab name
of SOME x => x
- | NONE => error ("No such " ^ errname ^ ": " ^ quote name)
+ | NONE => error ("No such " ^ category_of name ^ ": " ^ quote name)
end;
@@ -208,7 +277,8 @@
fun thyname_of_classrel thy =
thyname_of thy (fn thy => fn (class1, class2) => Sign.subsort thy ([class1], [class2]))
- (fn (class1, class2) => "thyname_of_classrel: no such classrel: " ^ quote class1 ^ " in " ^ quote class2);
+ (fn (class1, class2) => "thyname_of_classrel: no such subclass relation: "
+ ^ (quote o string_of_classrel) (class1, class2));
fun thyname_of_tyco thy =
thyname_of thy Sign.declared_tyname
@@ -219,7 +289,8 @@
fun test_instance thy (class, tyco) =
can (Sorts.mg_domain (Sign.classes_of thy) tyco) [class]
in thyname_of thy test_instance
- (fn (class, tyco) => "thyname_of_instance: no such instance: " ^ quote class ^ ", " ^ quote tyco)
+ (fn (class, tyco) => "thyname_of_instance: no such instance: "
+ ^ (quote o string_of_instance) (class, tyco))
end;
fun thyname_of_const thy =
@@ -274,110 +345,63 @@
in NameSpace.implode (prefix @ [space_implode "_" base]) end;
-(* shallow name spaces *)
-
-val nsp_class = "class";
-val nsp_classrel = "clsrel"
-val nsp_tyco = "tyco";
-val nsp_inst = "inst";
-val nsp_const = "const";
-
-val nsp_mapping = [
- (nsp_class, "class"),
- (nsp_classrel, "class relation"),
- (nsp_tyco, "type constructor"),
- (nsp_inst, "instance"),
- (nsp_const, "constant")
-]
-
-fun add_nsp nsp name =
- NameSpace.append name nsp
-
-fun dest_nsp nsp name =
- if NameSpace.base name = nsp
- then SOME (NameSpace.qualifier name)
- else NONE;
-
-
(* external interfaces *)
fun class thy =
get thy #class Symtab.lookup map_class Symtab.update class_policy
- #> add_nsp nsp_class;
+ #> add_idf idf_class;
fun classrel thy =
get thy #classrel StringPairTab.lookup map_classrel StringPairTab.update classrel_policy
- #> add_nsp nsp_classrel;
+ #> add_idf idf_classrel;
fun tyco thy =
get thy #tyco Symtab.lookup map_tyco Symtab.update tyco_policy
- #> add_nsp nsp_tyco;
+ #> add_idf idf_tyco;
fun instance thy =
- get thy #instance StringPairTab.lookup map_inst StringPairTab.update instance_policy
- #> add_nsp nsp_inst;
+ get thy #instance StringPairTab.lookup map_instance StringPairTab.update instance_policy
+ #> add_idf idf_instance;
fun const thy =
CodegenConsts.norm thy
#> get thy #const Consttab.lookup map_const Consttab.update const_policy
- #> add_nsp nsp_const;
+ #> add_idf idf_const;
fun class_rev thy =
- dest_nsp nsp_class
- #> Option.map (rev thy #class "class");
+ dest_idf idf_class
+ #> Option.map (rev thy #class);
fun classrel_rev thy =
- dest_nsp nsp_classrel
- #> Option.map (rev thy #classrel "class relation");
+ dest_idf idf_classrel
+ #> Option.map (rev thy #classrel);
fun tyco_rev thy =
- dest_nsp nsp_tyco
- #> Option.map (rev thy #tyco "type constructor");
+ dest_idf idf_tyco
+ #> Option.map (rev thy #tyco);
fun instance_rev thy =
- dest_nsp nsp_inst
- #> Option.map (rev thy #instance "instance");
+ dest_idf idf_instance
+ #> Option.map (rev thy #instance);
fun const_rev thy =
- dest_nsp nsp_const
- #> Option.map (rev thy #const "constant");
+ dest_idf idf_const
+ #> Option.map (rev thy #const);
+
+local
-fun labelled_name thy name =
+val f_mapping = [
+ (idf_class, class_rev),
+ (idf_classrel, Option.map string_of_classrel oo classrel_rev),
+ (idf_tyco, tyco_rev),
+ (idf_instance, Option.map string_of_instance oo instance_rev),
+ (idf_const, fn thy => Option.map (CodegenConsts.string_of_const thy) o const_rev thy)
+];
+
+in
+
+fun labelled_name thy idf =
let
- val nam = NameSpace.qualifier name;
- val nsp = NameSpace.base name;
- in case AList.lookup (op =) nsp_mapping nsp
- of SOME msg => msg ^ " " ^ quote nam
- | NONE => error ("Illegal shallow name space: " ^ quote nsp)
+ val category = category_of idf;
+ val name = NameSpace.qualifier idf;
+ val f = (the o AList.lookup (op =) f_mapping o NameSpace.base) idf
+ in case f thy idf
+ of SOME thing => category ^ " " ^ quote thing
+ | NONE => error ("Unknown name: " ^ quote name)
end;
-
-(** variable and module names **)
-
-fun purify_var "" = "x"
- | purify_var v = (purify_name #> purify_lower) v;
-
-fun purify_tvar "" = "'a"
- | purify_tvar v =
- (unprefix "'" #> explode #> filter Symbol.is_ascii_letter #> cons "'" #> implode) v;
-
-fun check_modulename mn =
- let
- val mns = NameSpace.explode mn;
- val mns' = map purify_upper mns;
- in
- if mns' = mns then mn else error ("Invalid module name: " ^ quote mn ^ "\n"
- ^ "perhaps try " ^ quote (NameSpace.implode mns'))
- end;
-
-
-(** variable name contexts **)
-
-type var_ctxt = string Symtab.table * Name.context;
-
-fun make_vars names = (fold (fn name => Symtab.update_new (name, name)) names Symtab.empty,
- Name.make_context names);
-
-fun intro_vars names (namemap, namectxt) =
- let
- val (names', namectxt') = Name.variants names namectxt;
- val namemap' = fold2 (curry Symtab.update) names names' namemap;
- in (namemap', namectxt') end;
-
-fun lookup_var (namemap, _) name = case Symtab.lookup namemap name
- of SOME name' => name'
- | NONE => error ("Invalid name in context: " ^ quote name);
+end;
end;