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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(ic_enum_java).
+
+-include("icforms.hrl").
+-include("ic.hrl").
+-include("ic_debug.hrl").
+%%-----------------------------------------------------------------
+%% External exports
+%%-----------------------------------------------------------------
+-export([gen/3]).
+
+%%-----------------------------------------------------------------
+%% Internal exports
+%%-----------------------------------------------------------------
+-export([]).
+
+%%-----------------------------------------------------------------
+%% External functions
+%%-----------------------------------------------------------------
+
+%%-----------------------------------------------------------------
+%% Func: gen/3
+%%-----------------------------------------------------------------
+gen(G, N, X) when is_record(X, enum) ->
+ %%?PRINTDEBUG2("enum: ~p", [X]),
+ EnumName = ic_forms:get_java_id(X),
+ N2 = ["_" ++ EnumName |N],
+ ic_jbe:gen(G, N2, ic_forms:get_body(X)),
+
+ emit_enum_class(G, N, X, EnumName),
+ emit_holder_class(G, N, X, EnumName),
+ emit_helper_class(G, N, X, EnumName);
+gen(_G, _N, _X) ->
+ ok.
+
+
+%%-----------------------------------------------------------------
+%% Internal functions
+%%-----------------------------------------------------------------
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_class/4
+%%-----------------------------------------------------------------
+emit_enum_class(G, N, X, EnumName) ->
+ {Fd, _} = ic_file:open_java_file(G, N, EnumName),
+
+ EList = enum_member_name_list(G, N, X),
+ %%?PRINTDEBUG2("EList: ~p", [EList]),
+ ic_codegen:emit(Fd, ["final public class ",EnumName," {\n\n"
+
+ " // instance variables\n"]),
+
+ emit_enum_member_int_values_initialization(G, N, X, Fd, EList),
+ emit_enum_public_instance_variables(G, N, X, Fd, EnumName, EList),
+
+ ic_codegen:emit(Fd, [" private int _value;\n\n"
+
+ " // constructors\n"
+ " private ",EnumName,"(int __value) {\n"
+ " _value = __value;\n"
+ " }\n\n"
+
+ " // methods\n"
+ " public int value() {\n"
+ " return _value;\n"
+ " }\n"]),
+
+ emit_enum_from_int_function(G, N, X, Fd, EnumName, EList),
+
+ ic_codegen:emit(Fd, "\n}\n"),
+ file:close(Fd).
+
+%%-----------------------------------------------------------------
+%% Func: emit_holder_class/4
+%%-----------------------------------------------------------------
+emit_holder_class(G, N, _X, EnumName) ->
+ EName = string:concat(EnumName, "Holder"),
+ {Fd, _} = ic_file:open_java_file(G, N, EName),
+
+ ic_codegen:emit(Fd, ["final public class ",EnumName,"Holder {\n\n"
+
+ " // instance variables\n"
+ " public ",EnumName," value;\n\n"
+
+ " // constructors\n"
+ " public ",EnumName,"Holder() {}\n\n"
+
+ " public ",EnumName,"Holder(",EnumName," initial) {\n"
+ " value = initial;\n"
+ " }\n\n"
+
+ " // methods\n"
+ " public void _marshal(",?ERLANGPACKAGE,"OtpOutputStream out) throws java.lang.Exception {\n"
+ " ",EnumName,"Helper.marshal(out, value);\n"
+ " }\n\n"
+
+ " public void _unmarshal(",?ERLANGPACKAGE,"OtpInputStream in) throws java.lang.Exception {\n"
+ " value = ",EnumName,"Helper.unmarshal(in);\n"
+ " }\n\n"
+ "}\n"]),
+ file:close(Fd).
+
+
+%%-----------------------------------------------------------------
+%% Func: emit_helper_class/4
+%%-----------------------------------------------------------------
+emit_helper_class(G, N, X, EnumName) ->
+ EName = string:concat(EnumName, "Helper"),
+ WEList = enum_member_atom_list(G, N, X),
+ {Fd, _} = ic_file:open_java_file(G, N, EName),
+
+ ic_codegen:emit(Fd, ["public class ",EnumName,"Helper {\n\n"
+
+ " // constructors\n"
+ " private ",EnumName,"Helper() {}\n\n"
+
+ " // methods\n"
+
+ " public static void marshal(",?ERLANGPACKAGE,"OtpOutputStream _out, ",EnumName," _value)\n"
+ " throws java.lang.Exception {\n\n"]),
+
+ emit_enum_write_function(G, N, X, Fd, EnumName),
+
+ ic_codegen:emit(Fd, [" }\n\n"
+
+ " public static ",EnumName," unmarshal(",?ERLANGPACKAGE,"OtpInputStream _in)\n"
+ " throws java.lang.Exception {\n\n"]),
+
+ emit_enum_read_function(G, N, X, Fd, EnumName),
+
+ ic_codegen:emit(Fd, "\n }\n\n"),
+
+ emit_enum_private_member_variables(Fd, WEList),
+
+ ic_codegen:emit(Fd, ["\n // Get integer value of enum from string\n"
+ " private static int _getIntFromName(String name) throws java.lang.Exception {\n"
+ " for(int i = 0; i < _memberCount; i++) {\n"
+ " if (name.equals(_members[i]))\n"
+ " return i;\n"
+ " }\n"
+ " throw new java.lang.Exception(\"\");\n"
+ " }\n\n"
+
+ " public static String id() {\n"
+ " return \"",ictk:get_IR_ID(G, N, X),"\";\n"
+ " }\n\n"
+
+ " public static String name() {\n"
+ " return \"",EnumName,"\";\n"
+ " }\n\n"]),
+
+ ic_jbe:emit_type_function(G, N, X, Fd),
+
+ ic_codegen:emit(Fd, [" public static void insert(",?ICPACKAGE,"Any _any, ",EnumName," _this)\n"
+ " throws java.lang.Exception {\n\n"
+
+ " ",?ERLANGPACKAGE,"OtpOutputStream _os = \n"
+ " new ",?ERLANGPACKAGE,"OtpOutputStream();\n\n"
+
+ " _any.type(type());\n"
+ " marshal(_os, _this);\n"
+ " _any.insert_Streamable(_os);\n"
+ " }\n\n"
+
+ " public static ",EnumName," extract(",?ICPACKAGE,"Any _any)\n"
+ " throws java.lang.Exception {\n\n"
+
+ " return unmarshal(_any.extract_Streamable());\n"
+ " }\n\n"
+
+ "}\n"]),
+ file:close(Fd).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_public_instance_variables/6
+%%-----------------------------------------------------------------
+emit_enum_public_instance_variables(_G, _N, _X, _Fd, _EnumName, []) ->
+ ok;
+emit_enum_public_instance_variables(G, N, X, Fd, EnumName, [Enumerator |EList]) ->
+ ic_codegen:emit(Fd, [" public static final ",EnumName," ",Enumerator," = new ",EnumName,"(_",Enumerator,");\n"]),
+ emit_enum_public_instance_variables(G, N, X, Fd, EnumName, EList).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_member_int_values_initialization/5
+%%-----------------------------------------------------------------
+emit_enum_member_int_values_initialization(G, N, X, Fd, EList) ->
+ InitString = emit_enum_member_int_values_initialization_1(G, N, X, Fd, EList, 0),
+ ic_codegen:emit(Fd, [" public static final int ",InitString,";\n"]).
+
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_member_int_values_initialization_1/6
+%%-----------------------------------------------------------------
+emit_enum_member_int_values_initialization_1(_G, _N, _X, _Fd, [Enumerator], Num) ->
+ " _" ++ Enumerator ++ " = " ++ ic_util:to_list(Num);
+emit_enum_member_int_values_initialization_1(G, N, X, Fd, [Enumerator |EList], Num) ->
+ Spaces = if
+ Num == 0 ->
+ "";
+ true ->
+ " "
+ end,
+ Spaces ++ "_" ++ Enumerator ++ " = " ++ ic_util:to_list(Num) ++ ",\n" ++
+ emit_enum_member_int_values_initialization_1(G, N, X, Fd, EList, Num + 1).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_from_int_function/6
+%%-----------------------------------------------------------------
+emit_enum_from_int_function(_G, _N, _X, Fd, EnumName, EList) ->
+ ic_codegen:emit(Fd,
+ [" public static final ",EnumName," from_int(int __value) throws java.lang.Exception {\n"
+ " switch (__value) {\n"]),
+ emit_enum_from_int_function_switchbody(Fd, EList),
+ ic_codegen:emit(Fd, [" }\n"
+ " }\n"]).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_from_int_function_switchbody/2
+%%-----------------------------------------------------------------
+emit_enum_from_int_function_switchbody(Fd, []) ->
+ ic_codegen:emit(Fd, [" default:\n"
+ " throw new java.lang.Exception(\"\");\n"]);
+emit_enum_from_int_function_switchbody(Fd, [Enumerator |EList]) ->
+ ic_codegen:emit(Fd, [" case _",Enumerator,":\n"
+ " return ",Enumerator,";\n"]),
+ emit_enum_from_int_function_switchbody(Fd, EList).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_private_member_variables/2
+%%-----------------------------------------------------------------
+emit_enum_private_member_variables(Fd, EList) ->
+ ic_codegen:emit(Fd, [" private static final int _memberCount = ",integer_to_list(length(EList)),";\n"
+ " private static String[] _members = {\n"]),
+ emit_enum_private_member_variables_1(Fd, EList),
+ ic_codegen:emit(Fd, " };\n").
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_private_member_variables_1/2
+%%-----------------------------------------------------------------
+emit_enum_private_member_variables_1(Fd, [Enumerator]) ->
+ ic_codegen:emit(Fd, [" \"",Enumerator,"\"\n"]);
+emit_enum_private_member_variables_1(Fd, [Enumerator |EList]) ->
+ ic_codegen:emit(Fd, [" \"",Enumerator,"\",\n"]),
+ emit_enum_private_member_variables_1(Fd, EList).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_read_function/5
+%%-----------------------------------------------------------------
+emit_enum_read_function(_G, _N, _X, Fd, EnumName) ->
+ ic_codegen:emit(Fd, [" return ",EnumName,".from_int(_getIntFromName(_in.read_atom()));"]).
+
+%%-----------------------------------------------------------------
+%% Func: emit_enum_write_function/5
+%%-----------------------------------------------------------------
+emit_enum_write_function(_G, _N, _X, Fd, _EnumName) ->
+ ic_codegen:emit(Fd, " _out.write_atom(_members[_value.value()]);\n").
+
+
+%%-----------------------------------------------------------------
+%% Func: enum_member_name_list/3
+%%
+%% Note: The names generated are checked for name coalition
+%% with java keywords. If so the name is always prefixed
+%% by "_"
+%%-----------------------------------------------------------------
+enum_member_name_list(_G, _N, X) ->
+ lists:map(
+ fun(Enumerator) ->
+ ic_forms:get_java_id(Enumerator)
+ end,
+ ic_forms:get_body(X)).
+
+%%-----------------------------------------------------------------
+%% Func: enum_member_atom_list/3
+%%
+%% Note : Similar to the emit_member_list/3 but does not
+%% solves name coalitions with java keywords.
+%% Used for wire encoding only
+%%-----------------------------------------------------------------
+enum_member_atom_list(_G, _N, X) ->
+ lists:map(
+ fun(Enumerator) ->
+ ic_forms:get_id2(Enumerator)
+ end,
+ ic_forms:get_body(X)).
+
+
+
+
+
+
+
+
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