%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2010. 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(fun_SUITE).
-export([all/1,
test1/1,overwritten_fun/1,otp_7202/1,bif_fun/1]).
-include("test_server.hrl").
all(suite) ->
test_lib:recompile(?MODULE),
[test1,overwritten_fun,otp_7202,bif_fun].
%%% The help functions below are copied from emulator:bs_construct_SUITE.
-define(T(B, L), {B, ??B, L}).
l1() ->
[
?T((begin A = 3, F = fun(A) -> 1; (_) -> 2 end, F(2) end), 1),
?T((begin G = fun(1=0) -> ok end, {'EXIT',_} = (catch G(2)), ok end), ok)
].
test1(suite) -> [];
test1(Config) when is_list(Config) ->
?line lists:foreach(fun one_test/1, eval_list(l1(), [])),
ok.
evaluate(Str, Vars) ->
{ok,Tokens,_} =
erl_scan:string(Str ++ " . "),
{ok, [Expr]} = erl_parse:parse_exprs(Tokens),
case erl_eval:expr(Expr, Vars) of
{value, Result, _} ->
Result
end.
eval_list([], _Vars) ->
[];
eval_list([{C_bin, Str, Bytes} | Rest], Vars) ->
case catch evaluate(Str, Vars) of
{'EXIT', Error} ->
io:format("Evaluation error: ~p, ~p, ~p~n", [Str, Vars, Error]),
exit(Error);
E_bin ->
[{C_bin, E_bin, Str, Bytes} | eval_list(Rest, Vars)]
end.
one_test({C, E, Str, Correct}) ->
io:format(" ~s, ~p~n", [Str, Correct]),
if
C == Correct ->
ok;
true ->
io:format("ERROR: Compiled: ~p. Expected ~p. Got ~p.~n",
[Str, Correct, C]),
test_server:fail(comp)
end,
if
E == Correct ->
ok;
true ->
io:format("ERROR: Interpreted: ~p. Expected ~p. Got ~p.~n",
[Str, Correct, E]),
test_server:fail(comp)
end.
-record(b, {c}).
%% OTP-7102. (Thanks to Simon Cornish.)
overwritten_fun(Config) when is_list(Config) ->
?line {a2,a} = overwritten_fun_1(a),
?line {a2,{b,c}} = overwritten_fun_1(#b{c=c}),
?line one = overwritten_fun_1(#b{c=[]}),
ok.
overwritten_fun_1(A) ->
F = fun() ->
{ok, A}
end,
if A#b.c == [] ->
one;
true ->
case F() of
{ok, A2} ->
{a2, A2};
_ ->
three
end
end.
%% OTP-7202. The liveness calculation for the make_fun2 instruction was wrong.
otp_7202(Config) when is_list(Config) ->
otp_7202().
otp_7202() ->
List = [a],
Error = case otp_7202_func() of
no_value -> true;
{ok, V} -> V
end,
lists:foreach(fun(_E) ->
case Error of
true ->
ok;
false ->
ok
end
end, List).
otp_7202_func() ->
no_value.
bif_fun(Config) when is_list(Config) ->
?line F = fun abs/1,
?line 5 = F(-5),
ok.
