%% =====================================================================
%% This library is free software; you can redistribute it and/or modify
%% it under the terms of the GNU Lesser General Public License as
%% published by the Free Software Foundation; either version 2 of the
%% License, or (at your option) any later version.
%%
%% This library is distributed in the hope that it will be useful, but
%% WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%% Lesser General Public License for more details.
%%
%% You should have received a copy of the GNU Lesser General Public
%% License along with this library; if not, write to the Free Software
%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
%% USA
%%
%% $Id$
%%
%% @private
%% @copyright 2001-2003 Richard Carlsson
%% @author Richard Carlsson <[email protected]>
%% @see edoc
%% @end
%% =====================================================================
%% @doc Datatype representation for EDoc.
-module(edoc_types).
-export([is_predefined/1, to_ref/1, to_xml/2, to_label/1, arg_names/1,
set_arg_names/2, arg_descs/1, range_desc/1]).
%% @headerfile "edoc_types.hrl"
-include("edoc_types.hrl").
-include("xmerl.hrl").
is_predefined(any) -> true;
is_predefined(atom) -> true;
is_predefined(binary) -> true;
is_predefined(bool) -> true;
is_predefined(char) -> true;
is_predefined(cons) -> true;
is_predefined(deep_string) -> true;
is_predefined(float) -> true;
is_predefined(function) -> true;
is_predefined(integer) -> true;
is_predefined(list) -> true;
is_predefined(nil) -> true;
is_predefined(none) -> true;
is_predefined(number) -> true;
is_predefined(pid) -> true;
is_predefined(port) -> true;
is_predefined(reference) -> true;
is_predefined(string) -> true;
is_predefined(term) -> true;
is_predefined(tuple) -> true;
is_predefined(_) -> false.
to_ref(#t_typedef{name = N}) ->
to_ref(N);
to_ref(#t_def{name = N}) ->
to_ref(N);
to_ref(#t_type{name = N}) ->
to_ref(N);
to_ref(#t_name{module = [], name = N}) ->
edoc_refs:type(N);
to_ref(#t_name{app = [], module = M, name = N}) ->
edoc_refs:type(M, N);
to_ref(#t_name{app = A, module = M, name = N}) ->
edoc_refs:type(A, M, N).
to_label(N) ->
edoc_refs:to_label(to_ref(N)).
get_uri(Name, Env) ->
edoc_refs:get_uri(to_ref(Name), Env).
to_xml(#t_var{name = N}, _Env) ->
{typevar, [{name, atom_to_list(N)}], []};
to_xml(#t_name{module = [], name = N}, _Env) ->
{erlangName, [{name, atom_to_list(N)}], []};
to_xml(#t_name{app = [], module = M, name = N}, _Env) ->
{erlangName, [{module, atom_to_list(M)},
{name, atom_to_list(N)}], []};
to_xml(#t_name{app = A, module = M, name = N}, _Env) ->
{erlangName, [{app, atom_to_list(A)},
{module, atom_to_list(M)},
{name, atom_to_list(N)}], []};
to_xml(#t_type{name = N, args = As}, Env) ->
Predef = case N of
#t_name{module = [], name = T} ->
is_predefined(T);
_ ->
false
end,
HRef = case Predef of
true -> [];
false -> [{href, get_uri(N, Env)}]
end,
{abstype, HRef, [to_xml(N, Env) | map(fun wrap_utype/2, As, Env)]};
to_xml(#t_fun{args = As, range = T}, Env) ->
{'fun', [{argtypes, map(fun wrap_utype/2, As, Env)},
wrap_utype(T, Env)]};
to_xml(#t_tuple{types = Ts}, Env) ->
{tuple, map(fun wrap_utype/2, Ts, Env)};
to_xml(#t_list{type = T}, Env) ->
{list, [wrap_utype(T, Env)]};
to_xml(#t_nil{}, _Env) ->
nil;
to_xml(#t_atom{val = V}, _Env) ->
{atom, [{value, io_lib:write(V)}], []};
to_xml(#t_integer{val = V}, _Env) ->
{integer, [{value, integer_to_list(V)}], []};
to_xml(#t_float{val = V}, _Env) ->
{float, [{value, io_lib:write(V)}], []};
to_xml(#t_union{types = Ts}, Env) ->
{union, map(fun wrap_type/2, Ts, Env)};
to_xml(#t_record{name = N = #t_atom{}, fields = Fs}, Env) ->
{record, [to_xml(N, Env) | map(fun to_xml/2, Fs, Env)]};
to_xml(#t_field{name = N = #t_atom{}, type = T}, Env) ->
{field, [to_xml(N, Env), wrap_type(T, Env)]};
to_xml(#t_def{name = N = #t_var{}, type = T}, Env) ->
{localdef, [to_xml(N, Env), wrap_type(T, Env)]};
to_xml(#t_def{name = N, type = T}, Env) ->
{localdef, [{label, to_label(N)}],
[to_xml(N, Env), wrap_type(T, Env)]};
to_xml(#t_spec{name = N, type = T, defs = Ds}, Env) ->
{typespec, [to_xml(N, Env), wrap_utype(T, Env)
| map(fun to_xml/2, Ds, Env)]};
to_xml(#t_typedef{name = N, args = As, type = undefined, defs = Ds},
Env) ->
{typedef, [to_xml(N, Env),
{argtypes, map(fun wrap_utype/2, As, Env)}
| map(fun to_xml/2, Ds, Env)]};
to_xml(#t_typedef{name = N, args = As, type = T, defs = Ds}, Env) ->
{typedef, [to_xml(N, Env),
{argtypes, map(fun wrap_utype/2, As, Env)},
wrap_type(T, Env)
| map(fun to_xml/2, Ds, Env)]};
to_xml(#t_throws{type = T, defs = Ds}, Env) ->
{throws, [wrap_type(T, Env)
| map(fun to_xml/2, Ds, Env)]}.
wrap_type(T, Env) ->
{type, [to_xml(T, Env)]}.
wrap_utype(T, Env) ->
E = to_xml(T, Env),
case arg_name(T) of
'_' -> {type, [E]};
A -> {type, [{name, atom_to_list(A)}], [E]}
end.
map(F, Xs, Env) ->
[F(X, Env) || X <- Xs].
is_name(A) when is_atom(A) -> true;
is_name(_) -> false.
is_desc(A) when is_list(A) -> true;
is_desc(_) -> false.
arg_name(T) ->
find(?t_ann(T), fun is_name/1, '_').
arg_names(S) ->
arg_anns(S, fun is_name/1, '_').
arg_descs(S) ->
arg_anns(S, fun is_desc/1, "").
range_desc(#t_spec{type = #t_fun{range = T}}) ->
find(?t_ann(T), fun is_desc/1, "").
arg_anns(#t_spec{type = #t_fun{args = As}}, F, Def) ->
[find(?t_ann(A), F, Def) || A <- As].
find([A| As], F, Def) ->
case F(A) of
true -> A;
false -> find(As, F, Def)
end;
find([], _, Def) -> Def.
set_arg_names(S, Ns) ->
set_arg_anns(S, Ns, fun is_name/1).
%% set_arg_descs(S, Ns) ->
%% set_arg_anns(S, Ns, fun is_desc/1).
set_arg_anns(#t_spec{type = #t_fun{args = As}=T}=S, Ns, F) ->
Zip = fun (A, N) ->
?set_t_ann(A, update(?t_ann(A), N, F))
end,
S#t_spec{type = T#t_fun{args = lists:zipwith(Zip, As, Ns)}}.
update([A| As], N, F) ->
case F(A) of
true -> [N | As];
false -> [A| update(As, N, F)]
end;
update([], N, _) -> [N].
