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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1998-2009. 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(erl_eval_SUITE).
+-export([all/1]).
+
+-export([guard_1/1, guard_2/1,
+ match_pattern/1,
+ match_bin/1,
+ string_plusplus/1,
+ pattern_expr/1,
+ guard_3/1, guard_4/1,
+ lc/1,
+ simple_cases/1,
+ unary_plus/1,
+ apply_atom/1,
+ otp_5269/1,
+ otp_6539/1,
+ otp_6543/1,
+ otp_6787/1,
+ otp_6977/1,
+ otp_7550/1,
+ otp_8133/1,
+ funs/1,
+ try_catch/1,
+ eval_expr_5/1]).
+
+%%
+%% Define to run outside of test server
+%%
+%%-define(STANDALONE,1).
+
+-import(lists,[concat/1, sort/1]).
+
+-export([count_down/2, count_down_fun/0, do_apply/2,
+ local_func/3, local_func_value/2]).
+
+-ifdef(STANDALONE).
+-define(config(A,B),config(A,B)).
+-export([config/2]).
+-define(line, noop, ).
+config(priv_dir,_) ->
+ ".".
+-else.
+-include("test_server.hrl").
+-export([init_per_testcase/2, fin_per_testcase/2]).
+% Default timetrap timeout (set in init_per_testcase).
+-define(default_timeout, ?t:minutes(1)).
+init_per_testcase(_Case, Config) ->
+ ?line Dog = ?t:timetrap(?default_timeout),
+ [{watchdog, Dog} | Config].
+fin_per_testcase(_Case, Config) ->
+ Dog = ?config(watchdog, Config),
+ test_server:timetrap_cancel(Dog),
+ ok.
+-endif.
+
+all(doc) ->
+ ["Test cases for the 'erl_eval' module."];
+all(suite) ->
+ [guard_1, guard_2, match_pattern, string_plusplus, pattern_expr,
+ match_bin, guard_3, guard_4,
+ lc, simple_cases, unary_plus, apply_atom, otp_5269, otp_6539, otp_6543,
+ otp_6787, otp_6977, otp_7550, otp_8133, funs, try_catch, eval_expr_5].
+
+guard_1(doc) ->
+ ["(OTP-2405)"];
+guard_1(suite) ->
+ [];
+guard_1(Config) when is_list(Config) ->
+ ?line {ok,Tokens ,_} =
+ erl_scan:string("if a+4 == 4 -> yes; true -> no end. "),
+ ?line {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ ?line no = guard_1_compiled(),
+ ?line {value, no, []} = erl_eval:expr(Expr, []),
+ ok.
+
+guard_1_compiled() ->
+ if a+4 == 4 -> yes; true -> no end.
+
+guard_2(doc) ->
+ ["Similar to guard_1, but type-correct"];
+guard_2(suite) ->
+ [];
+guard_2(Config) when is_list(Config) ->
+ ?line {ok,Tokens ,_} =
+ erl_scan:string("if 6+4 == 4 -> yes; true -> no end. "),
+ ?line {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ ?line no = guard_2_compiled(),
+ ?line {value, no, []} = erl_eval:expr(Expr, []),
+ ok.
+
+guard_2_compiled() ->
+ if 6+4 == 4 -> yes; true -> no end.
+
+string_plusplus(doc) ->
+ ["OTP-3069: syntactic sugar string ++ ..."];
+string_plusplus(suite) ->
+ [];
+string_plusplus(Config) when is_list(Config) ->
+ ?line check(fun() -> case "abc" of "ab" ++ L -> L end end,
+ "case \"abc\" of \"ab\" ++ L -> L end. ",
+ "c"),
+ ?line check(fun() -> case "abcde" of "ab" ++ "cd" ++ L -> L end end,
+ "case \"abcde\" of \"ab\" ++ \"cd\" ++ L -> L end. ",
+ "e"),
+ ?line check(fun() -> case "abc" of [97, 98] ++ L -> L end end,
+ "case \"abc\" of [97, 98] ++ L -> L end. ",
+ "c"),
+ ok.
+
+match_pattern(doc) ->
+ ["OTP-2983: match operator in pattern"];
+match_pattern(suite) ->
+ [];
+match_pattern(Config) when is_list(Config) ->
+ ?line check(fun() -> case {a, b} of {a, _X}=Y -> {x,Y} end end,
+ "case {a, b} of {a, X}=Y -> {x,Y} end. ",
+ {x, {a, b}}),
+ ?line check(fun() -> case {a, b} of Y={a, _X} -> {x,Y} end end,
+ "case {a, b} of Y={a, X} -> {x,Y} end. ",
+ {x, {a, b}}),
+ ?line check(fun() -> case {a, b} of Y={a, _X}=Z -> {Z,Y} end end,
+ "case {a, b} of Y={a, X}=Z -> {Z,Y} end. ",
+ {{a, b}, {a, b}}),
+ ?line check(fun() -> A = 4, B = 28, <<13:(A+(X=B))>>, X end,
+ "begin A = 4, B = 28, <<13:(A+(X=B))>>, X end.",
+ 28),
+ ok.
+
+match_bin(doc) ->
+ ["binary match problems"];
+match_bin(suite) ->
+ [];
+match_bin(Config) when is_list(Config) ->
+ ?line check(fun() -> <<"abc">> = <<"abc">> end,
+ "<<\"abc\">> = <<\"abc\">>. ",
+ <<"abc">>),
+ ?line check(fun() ->
+ <<Size,B:Size/binary,Rest/binary>> = <<2,"AB","CD">>,
+ {Size,B,Rest}
+ end,
+ "begin <<Size,B:Size/binary,Rest/binary>> = <<2,\"AB\",\"CD\">>, "
+ "{Size,B,Rest} end. ",
+ {2,<<"AB">>,<<"CD">>}),
+ ok.
+
+pattern_expr(doc) ->
+ ["OTP-3144: compile-time expressions in pattern"];
+pattern_expr(suite) ->
+ [];
+pattern_expr(Config) when is_list(Config) ->
+ ?line check(fun() -> case 4 of 2+2 -> ok end end,
+ "case 4 of 2+2 -> ok end. ",
+ ok),
+ ?line check(fun() -> case 2 of +2 -> ok end end,
+ "case 2 of +2 -> ok end. ",
+ ok),
+ ok.
+
+guard_3(doc) ->
+ ["OTP-4518."];
+guard_3(suite) ->
+ [];
+guard_3(Config) when is_list(Config) ->
+ ?line check(fun() -> if false -> false; true -> true end end,
+ "if false -> false; true -> true end.",
+ true),
+ ?line check(fun() -> if <<"hej">> == <<"hopp">> -> true;
+ true -> false end end,
+ "begin if <<\"hej\">> == <<\"hopp\">> -> true;
+ true -> false end end.",
+ false),
+ ?line check(fun() -> if <<"hej">> == <<"hej">> -> true;
+ true -> false end end,
+ "begin if <<\"hej\">> == <<\"hej\">> -> true;
+ true -> false end end.",
+ true),
+ ok.
+
+guard_4(doc) ->
+ ["OTP-4885."];
+guard_4(suite) ->
+ [];
+guard_4(Config) when is_list(Config) ->
+ ?line check(fun() -> if {erlang,'+'}(3,a) -> true ; true -> false end end,
+ "if {erlang,'+'}(3,a) -> true ; true -> false end.",
+ false),
+ ?line check(fun() -> if {erlang,is_integer}(3) -> true ; true -> false end
+ end,
+ "if {erlang,is_integer}(3) -> true ; true -> false end.",
+ true),
+ ?line check(fun() -> [X || X <- [1,2,3], erlang:is_integer(X)] end,
+ "[X || X <- [1,2,3], erlang:is_integer(X)].",
+ [1,2,3]),
+ ?line check(fun() -> if is_atom(is_integer(a)) -> true ; true -> false end
+ end,
+ "if is_atom(is_integer(a)) -> true ; true -> false end.",
+ true),
+ ?line check(fun() -> if {erlang,is_atom}({erlang,is_integer}(a)) -> true;
+ true -> false end end,
+ "if {erlang,is_atom}({erlang,is_integer}(a)) -> true; "
+ "true -> false end.",
+ true),
+ ?line check(fun() -> if is_atom(3+a) -> true ; true -> false end end,
+ "if is_atom(3+a) -> true ; true -> false end.",
+ false),
+ ?line check(fun() -> if erlang:is_atom(3+a) -> true ; true -> false end
+ end,
+ "if erlang:is_atom(3+a) -> true ; true -> false end.",
+ false),
+ ok.
+
+
+lc(doc) ->
+ ["OTP-4518."];
+lc(suite) ->
+ [];
+lc(Config) when is_list(Config) ->
+ ?line check(fun() -> X = 32, [X || X <- [1,2,3]] end,
+ "begin X = 32, [X || X <- [1,2,3]] end.",
+ [1,2,3]),
+ ?line check(fun() -> X = 32,
+ [X || <<X:X>> <- [<<1:32>>,<<2:32>>,<<3:8>>]] end,
+ %% "binsize variable" ^
+ "begin X = 32,
+ [X || <<X:X>> <- [<<1:32>>,<<2:32>>,<<3:8>>]] end.",
+ [1,2]),
+ ?line check(fun() -> Y = 13,[X || {X,Y} <- [{1,2}]] end,
+ "begin Y = 13,[X || {X,Y} <- [{1,2}]] end.",
+ [1]),
+ ?line error_check("begin [A || X <- [{1,2}], 1 == A] end.",
+ {unbound_var,'A'}),
+ ?line error_check("begin X = 32,
+ [{Y,W} || X <- [1,2,32,Y=4], Z <- [1,2,W=3]] end.",
+ {unbound_var,'Y'}),
+ ?line error_check("begin X = 32,<<A:B>> = <<100:X>> end.",
+ {unbound_var,'B'}),
+ ?line check(fun() -> [X || X <- [1,2,3,4], not (X < 2)] end,
+ "begin [X || X <- [1,2,3,4], not (X < 2)] end.",
+ [2,3,4]),
+ ?line check(fun() -> [X || X <- [true,false], X] end,
+ "[X || X <- [true,false], X].", [true]),
+ ok.
+
+simple_cases(doc) ->
+ ["Simple cases, just to cover some code."];
+simple_cases(suite) ->
+ [];
+simple_cases(Config) when is_list(Config) ->
+ ?line check(fun() -> A = $C end, "A = $C.", $C),
+ %% ?line check(fun() -> A = 3.14 end, "A = 3.14.", 3.14),
+ ?line check(fun() -> self() ! a, A = receive a -> true end end,
+ "begin self() ! a, A = receive a -> true end end.",
+ true),
+ ?line check(fun() -> c:flush(), self() ! a, self() ! b, self() ! c,
+ receive b -> b end,
+ {messages, [a,c]} =
+ erlang:process_info(self(), messages),
+ c:flush() end,
+ "begin c:flush(), self() ! a, self() ! b, self() ! c,"
+ "receive b -> b end,"
+ "{messages, [a,c]} ="
+ " erlang:process_info(self(), messages), c:flush() end.",
+ ok),
+ ?line check(fun() -> self() ! a, A = receive a -> true
+ after 0 -> false end end,
+ "begin self() ! a, A = receive a -> true"
+ " after 0 -> false end end.",
+ true),
+ ?line check(fun() -> c:flush(), self() ! a, self() ! b, self() ! c,
+ receive b -> b after 0 -> true end,
+ {messages, [a,c]} =
+ erlang:process_info(self(), messages),
+ c:flush() end,
+ "begin c:flush(), self() ! a, self() ! b, self() ! c,"
+ "receive b -> b after 0 -> true end,"
+ "{messages, [a,c]} ="
+ " erlang:process_info(self(), messages), c:flush() end.",
+ ok),
+ ?line check(fun() -> receive _ -> true after 10 -> false end end,
+ "receive _ -> true after 10 -> false end.",
+ false),
+ ?line check(fun() -> F = fun(A) -> A end, true = 3 == F(3) end,
+ "begin F = fun(A) -> A end, true = 3 == F(3) end.",
+ true),
+ ?line check(fun() -> F = fun(A) -> A end, true = 3 == apply(F, [3]) end,
+ "begin F = fun(A) -> A end, true = 3 == apply(F,[3]) end.",
+ true),
+ ?line check(fun() -> catch throw(a) end, "catch throw(a).", a),
+ ?line check(fun() -> catch a end, "catch a.", a),
+ ?line check(fun() -> 4 == 3 end, "4 == 3.", false),
+ ?line check(fun() -> not true end, "not true.", false),
+ ?line check(fun() -> -3 end, "-3.", -3),
+
+ ?line error_check("3.0 = 4.0.", {badmatch,4.0}),
+ ?line check(fun() -> <<(3.0+2.0):32/float>> = <<5.0:32/float>> end,
+ "<<(3.0+2.0):32/float>> = <<5.0:32/float>>.",
+ <<5.0:32/float>>),
+
+ ?line check(fun() -> false andalso kludd end, "false andalso kludd.",
+ false),
+ ?line check(fun() -> true andalso true end, "true andalso true.",
+ true),
+ ?line check(fun() -> true andalso false end, "true andalso false.",
+ false),
+ ?line check(fun() -> true andalso kludd end, "true andalso kludd.",
+ kludd),
+ ?line error_check("kladd andalso kludd.", {badarg,kladd}),
+
+ ?line check(fun() -> if false andalso kludd -> a; true -> b end end,
+ "if false andalso kludd -> a; true -> b end.",
+ b),
+ ?line check(fun() -> if true andalso true -> a; true -> b end end,
+ "if true andalso true -> a; true -> b end.",
+ a),
+ ?line check(fun() -> if true andalso false -> a; true -> b end end,
+ "if true andalso false -> a; true -> b end.",
+ b),
+
+ ?line check(fun() -> true orelse kludd end,
+ "true orelse kludd.", true),
+ ?line check(fun() -> false orelse false end,
+ "false orelse false.", false),
+ ?line check(fun() -> false orelse true end,
+ "false orelse true.", true),
+ ?line check(fun() -> false orelse kludd end,
+ "false orelse kludd.", kludd),
+ ?line error_check("kladd orelse kludd.", {badarg,kladd}),
+ ?line error_check("[X || X <- [1,2,3], begin 1 end].",{bad_filter,1}),
+ ?line error_check("[X || X <- a].",{bad_generator,a}),
+
+ ?line check(fun() -> if true orelse kludd -> a; true -> b end end,
+ "if true orelse kludd -> a; true -> b end.", a),
+ ?line check(fun() -> if false orelse false -> a; true -> b end end,
+ "if false orelse false -> a; true -> b end.", b),
+ ?line check(fun() -> if false orelse true -> a; true -> b end end,
+ "if false orelse true -> a; true -> b end.", a),
+
+ ?line check(fun() -> [X || X <- [1,2,3], X+2] end,
+ "[X || X <- [1,2,3], X+2].", []),
+
+ ?line check(fun() -> [X || X <- [1,2,3], [X] == [X || X <- [2]]] end,
+ "[X || X <- [1,2,3], [X] == [X || X <- [2]]].",
+ [2]),
+ ?line check(fun() -> F = fun(1) -> ett; (2) -> zwei end,
+ ett = F(1), zwei = F(2) end,
+ "begin F = fun(1) -> ett; (2) -> zwei end,
+ ett = F(1), zwei = F(2) end.",
+ zwei),
+ ?line check(fun() -> F = fun(X) when X == 1 -> ett;
+ (X) when X == 2 -> zwei end,
+ ett = F(1), zwei = F(2) end,
+ "begin F = fun(X) when X == 1 -> ett;
+ (X) when X == 2 -> zwei end,
+ ett = F(1), zwei = F(2) end.",
+ zwei),
+ ?line error_check("begin F = fun(1) -> ett end, zwei = F(2) end.",
+ function_clause),
+ ?line check(fun() -> if length([1]) == 1 -> yes;
+ true -> no end end,
+ "if length([1]) == 1 -> yes;
+ true -> no end.",
+ yes),
+ ?line check(fun() -> if is_integer(3) -> true; true -> false end end,
+ "if is_integer(3) -> true; true -> false end.", true),
+ ?line check(fun() -> if integer(3) -> true; true -> false end end,
+ "if integer(3) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_float(3) -> true; true -> false end end,
+ "if is_float(3) -> true; true -> false end.", false),
+ ?line check(fun() -> if float(3) -> true; true -> false end end,
+ "if float(3) -> true; true -> false end.", false),
+ ?line check(fun() -> if is_number(3) -> true; true -> false end end,
+ "if is_number(3) -> true; true -> false end.", true),
+ ?line check(fun() -> if number(3) -> true; true -> false end end,
+ "if number(3) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_atom(a) -> true; true -> false end end,
+ "if is_atom(a) -> true; true -> false end.", true),
+ ?line check(fun() -> if atom(a) -> true; true -> false end end,
+ "if atom(a) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_list([]) -> true; true -> false end end,
+ "if is_list([]) -> true; true -> false end.", true),
+ ?line check(fun() -> if list([]) -> true; true -> false end end,
+ "if list([]) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_tuple({}) -> true; true -> false end end,
+ "if is_tuple({}) -> true; true -> false end.", true),
+ ?line check(fun() -> if tuple({}) -> true; true -> false end end,
+ "if tuple({}) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_pid(self()) -> true; true -> false end end,
+ "if is_pid(self()) -> true; true -> false end.", true),
+ ?line check(fun() -> if pid(self()) -> true; true -> false end end,
+ "if pid(self()) -> true; true -> false end.", true),
+ ?line check(fun() -> R = make_ref(), if is_reference(R) -> true;
+ true -> false end end,
+ "begin R = make_ref(), if is_reference(R) -> true;"
+ "true -> false end end.", true),
+ ?line check(fun() -> R = make_ref(), if reference(R) -> true;
+ true -> false end end,
+ "begin R = make_ref(), if reference(R) -> true;"
+ "true -> false end end.", true),
+ ?line check(fun() -> if is_port(a) -> true; true -> false end end,
+ "if is_port(a) -> true; true -> false end.", false),
+ ?line check(fun() -> if port(a) -> true; true -> false end end,
+ "if port(a) -> true; true -> false end.", false),
+ ?line check(fun() -> if is_function(a) -> true; true -> false end end,
+ "if is_function(a) -> true; true -> false end.", false),
+ ?line check(fun() -> if function(a) -> true; true -> false end end,
+ "if function(a) -> true; true -> false end.", false),
+ ?line check(fun() -> if is_binary(<<>>) -> true; true -> false end end,
+ "if is_binary(<<>>) -> true; true -> false end.", true),
+ ?line check(fun() -> if binary(<<>>) -> true; true -> false end end,
+ "if binary(<<>>) -> true; true -> false end.", true),
+ ?line check(fun() -> if is_integer(a) == true -> yes;
+ true -> no end end,
+ "if is_integer(a) == true -> yes;
+ true -> no end.",
+ no),
+ ?line check(fun() -> if [] -> true; true -> false end end,
+ "if [] -> true; true -> false end.", false),
+ ?line error_check("if lists:member(1,[1]) -> true; true -> false end.",
+ illegal_guard_expr),
+ ?line error_check("if false -> true end.", if_clause),
+ ?line check(fun() -> if a+b -> true; true -> false end end,
+ "if a + b -> true; true -> false end.", false),
+ ?line check(fun() -> if + b -> true; true -> false end end,
+ "if + b -> true; true -> false end.", false),
+ ?line error_check("case foo of bar -> true end.", {case_clause,foo}),
+ ?line error_check("case 4 of 2+a -> true; _ -> false end.",
+ illegal_pattern),
+ ?line error_check("case 4 of +a -> true; _ -> false end.",
+ illegal_pattern),
+ ?line check(fun() -> case a of
+ X when X == b -> one;
+ X when X == a -> two
+ end end,
+ "begin case a of
+ X when X == b -> one;
+ X when X == a -> two
+ end end.", two),
+ ?line error_check("3 = 4.", {badmatch,4}),
+ ?line error_check("a = 3.", {badmatch,3}),
+ %% ?line error_check("3.1 = 2.7.",{badmatch,2.7}),
+ ?line error_check("$c = 4.", {badmatch,4}),
+ ?line check(fun() -> $c = $c end, "$c = $c.", $c),
+ ?line check(fun() -> _ = bar end, "_ = bar.", bar),
+ ?line check(fun() -> A = 14, A = 14 end,
+ "begin A = 14, A = 14 end.", 14),
+ ?line error_check("begin A = 14, A = 16 end.", {badmatch,16}),
+ ?line error_check("\"hej\" = \"san\".", {badmatch,"san"}),
+ ?line check(fun() -> "hej" = "hej" end,
+ "\"hej\" = \"hej\".", "hej"),
+ ?line error_check("[] = [a].", {badmatch,[a]}),
+ ?line check(fun() -> [] = [] end, "[] = [].", []),
+ ?line error_check("[a] = [].", {badmatch,[]}),
+ ?line error_check("{a,b} = 34.", {badmatch,34}),
+ ?line check(fun() -> <<X:7>> = <<8:7>>, X end,
+ "begin <<X:7>> = <<8:7>>, X end.", 8),
+ ?line error_check("<<34:32>> = \"hej\".", {badmatch,"hej"}),
+ ?line check(fun() -> trunc((1 * 3 div 3 + 4 - 3) / 1) rem 2 end,
+ "begin trunc((1 * 3 div 3 + 4 - 3) / 1) rem 2 end.", 0),
+ ?line check(fun() -> (2#101 band 2#10101) bor (2#110 bxor 2#010) end,
+ "(2#101 band 2#10101) bor (2#110 bxor 2#010).", 5),
+ ?line check(fun() -> (2#1 bsl 4) + (2#10000 bsr 3) end,
+ "(2#1 bsl 4) + (2#10000 bsr 3).", 18),
+ ?line check(fun() -> ((1<3) and ((1 =:= 2) or (1 =/= 2))) xor (1=<2) end,
+ "((1<3) and ((1 =:= 2) or (1 =/= 2))) xor (1=<2).", false),
+ ?line check(fun() -> (a /= b) or (2 > 4) or (3 >= 3) end,
+ "(a /= b) or (2 > 4) or (3 >= 3).", true),
+ ?line check(fun() -> "hej" ++ "san" =/= "hejsan" -- "san" end,
+ "\"hej\" ++ \"san\" =/= \"hejsan\" -- \"san\".", true),
+ ?line check(fun() -> (bnot 1) < -0 end, "(bnot (+1)) < -0.", true),
+ ok.
+
+unary_plus(doc) ->
+ ["OTP-4929. Unary plus rejects non-numbers."];
+unary_plus(suite) ->
+ [];
+unary_plus(Config) when is_list(Config) ->
+ ?line check(fun() -> F = fun(X) -> + X end,
+ true = -1 == F(-1) end,
+ "begin F = fun(X) -> + X end,"
+ " true = -1 == F(-1) end.", true, ['F'], none, none),
+ ?line error_check("+a.", badarith),
+ ok.
+
+apply_atom(doc) ->
+ ["OTP-5064. Can no longer apply atoms."];
+apply_atom(suite) ->
+ [];
+apply_atom(Config) when is_list(Config) ->
+ ?line error_check("[X || X <- [[1],[2]],
+ begin L = length, L(X) =:= 1 end].",
+ {badfun,length}),
+ ok.
+
+otp_5269(doc) ->
+ ["OTP-5269. Bugs in the bit syntax."];
+otp_5269(suite) ->
+ [];
+otp_5269(Config) when is_list(Config) ->
+ ?line check(fun() -> L = 8,
+ F = fun(<<A:L,B:A>>) -> B end,
+ F(<<16:8, 7:16>>)
+ end,
+ "begin
+ L = 8, F = fun(<<A:L,B:A>>) -> B end, F(<<16:8, 7:16>>)
+ end.",
+ 7),
+ ?line check(fun() -> L = 8,
+ F = fun(<<L:L,B:L>>) -> B end,
+ F(<<16:8, 7:16>>)
+ end,
+ "begin
+ L = 8, F = fun(<<L:L,B:L>>) -> B end, F(<<16:8, 7:16>>)
+ end.",
+ 7),
+ ?line check(fun() -> L = 8, <<A:L,B:A>> = <<16:8, 7:16>>, B end,
+ "begin L = 8, <<A:L,B:A>> = <<16:8, 7:16>>, B end.",
+ 7),
+ ?line error_check("begin L = 8, <<L:L,B:L>> = <<16:8, 7:16>> end.",
+ {badmatch,<<16:8,7:16>>}),
+
+ ?line error_check("begin <<L:16,L:L>> = <<16:16,8:16>>, L end.",
+ {badmatch, <<16:16,8:16>>}),
+ ?line check(fun() -> U = 8, (fun(<<U:U>>) -> U end)(<<32:8>>) end,
+ "begin U = 8, (fun(<<U:U>>) -> U end)(<<32:8>>) end.",
+ 32),
+ ?line check(fun() -> U = 8, [U || <<U:U>> <- [<<32:8>>]] end,
+ "begin U = 8, [U || <<U:U>> <- [<<32:8>>]] end.",
+ [32]),
+ ?line error_check("(fun({3,<<A:32,A:32>>}) -> a end)
+ ({3,<<17:32,19:32>>}).",
+ function_clause),
+ ?line check(fun() -> [X || <<A:8,
+ B:A>> <- [<<16:8,19:16>>],
+ <<X:8>> <- [<<B:8>>]] end,
+ "[X || <<A:8,
+ B:A>> <- [<<16:8,19:16>>],
+ <<X:8>> <- [<<B:8>>]].",
+ [19]),
+ ok.
+
+otp_6539(doc) ->
+ ["OTP-6539. try/catch bugs."];
+otp_6539(suite) ->
+ [];
+otp_6539(Config) when is_list(Config) ->
+ ?line check(fun() ->
+ F = fun(A,B) ->
+ try A+B
+ catch _:_ -> dontthinkso
+ end
+ end,
+ lists:zipwith(F, [1,2], [2,3])
+ end,
+ "begin
+ F = fun(A,B) ->
+ try A+B
+ catch _:_ -> dontthinkso
+ end
+ end,
+ lists:zipwith(F, [1,2], [2,3])
+ end.",
+ [3, 5]),
+ ok.
+
+otp_6543(doc) ->
+ ["OTP-6543. bitlevel binaries."];
+otp_6543(suite) ->
+ [];
+otp_6543(Config) when is_list(Config) ->
+ ?line check(fun() ->
+ << <<X>> || <<X>> <- [1,2,3] >>
+ end,
+ "<< <<X>> || <<X>> <- [1,2,3] >>.",
+ <<>>),
+ ?line check(fun() ->
+ << <<X>> || X <- [1,2,3] >>
+ end,
+ "<< <<X>> || X <- [1,2,3] >>.",
+ <<1,2,3>>),
+ ?line check(fun() ->
+ << <<X:8>> || <<X:2>> <= <<"hej">> >>
+ end,
+ "<< <<X:8>> || <<X:2>> <= <<\"hej\">> >>.",
+ <<1,2,2,0,1,2,1,1,1,2,2,2>>),
+ ?line check(fun() ->
+ << <<X:8>> ||
+ <<65,X:4>> <= <<65,7:4,65,3:4,66,8:4>> >>
+ end,
+ "<< <<X:8>> ||
+ <<65,X:4>> <= <<65,7:4,65,3:4,66,8:4>> >>.",
+ <<7,3>>),
+ ?line check(fun() -> <<34:18/big>> end,
+ "<<34:18/big>>.",
+ <<0,8,2:2>>),
+ ?line check(fun() -> <<34:18/big-unit:2>> end,
+ "<<34:18/big-unit:2>>.",
+ <<0,0,0,2,2:4>>),
+ ?line check(fun() -> <<34:18/little>> end,
+ "<<34:18/little>>.",
+ <<34,0,0:2>>),
+ ?line case eval_string("<<34:18/native>>.") of
+ <<0,8,2:2>> -> ok;
+ <<34,0,0:2>> -> ok
+ end,
+ ?line check(fun() -> <<34:18/big-signed>> end,
+ "<<34:18/big-signed>>.",
+ <<0,8,2:2>>),
+ ?line check(fun() -> <<34:18/little-signed>> end,
+ "<<34:18/little-signed>>.",
+ <<34,0,0:2>>),
+ ?line case eval_string("<<34:18/native-signed>>.") of
+ <<0,8,2:2>> -> ok;
+ <<34,0,0:2>> -> ok
+ end,
+ ?line check(fun() -> <<34:18/big-unsigned>> end,
+ "<<34:18/big-unsigned>>.",
+ <<0,8,2:2>>),
+ ?line check(fun() -> <<34:18/little-unsigned>> end,
+ "<<34:18/little-unsigned>>.",
+ <<34,0,0:2>>),
+ ?line case eval_string("<<34:18/native-unsigned>>.") of
+ <<0,8,2:2>> -> ok;
+ <<34,0,0:2>> -> ok
+ end,
+ ?line check(fun() -> <<3.14:32/float-big>> end,
+ "<<3.14:32/float-big>>.",
+ <<64,72,245,195>>),
+ ?line check(fun() -> <<3.14:32/float-little>> end,
+ "<<3.14:32/float-little>>.",
+ <<195,245,72,64>>),
+ ?line case eval_string("<<3.14:32/float-native>>.") of
+ <<64,72,245,195>> -> ok;
+ <<195,245,72,64>> -> ok
+ end,
+ ?line error_check("<<(<<17,3:2>>)/binary>>.", badarg),
+ ?line check(fun() -> <<(<<17,3:2>>)/bitstring>> end,
+ "<<(<<17,3:2>>)/bitstring>>.",
+ <<17,3:2>>),
+ ?line check(fun() -> <<(<<17,3:2>>):10/bitstring>> end,
+ "<<(<<17,3:2>>):10/bitstring>>.",
+ <<17,3:2>>),
+ ?line check(fun() -> <<<<344:17>>/binary-unit:17>> end,
+ "<<<<344:17>>/binary-unit:17>>.",
+ <<344:17>>),
+
+ ?line check(fun() -> <<X:18/big>> = <<34:18/big>>, X end,
+ "begin <<X:18/big>> = <<34:18/big>>, X end.",
+ 34),
+ ?line check(fun() -> <<X:18/big-unit:2>> = <<34:18/big-unit:2>>, X end,
+ "begin <<X:18/big-unit:2>> = <<34:18/big-unit:2>>, X end.",
+ 34),
+ ?line check(fun() -> <<X:18/little>> = <<34:18/little>>, X end,
+ "begin <<X:18/little>> = <<34:18/little>>, X end.",
+ 34),
+ ?line check(fun() -> <<X:18/native>> = <<34:18/native>>, X end,
+ "begin <<X:18/native>> = <<34:18/native>>, X end.",
+ 34),
+ ?line check(fun() -> <<X:18/big-signed>> = <<34:18/big-signed>>, X end,
+ "begin <<X:18/big-signed>> = <<34:18/big-signed>>, X end.",
+ 34),
+ ?line check(fun() -> <<X:18/little-signed>> = <<34:18/little-signed>>,
+ X end,
+ "begin <<X:18/little-signed>> = <<34:18/little-signed>>,
+ X end.",
+ 34),
+ ?line check(fun() -> <<X:18/native-signed>> = <<34:18/native-signed>>,
+ X end,
+ "begin <<X:18/native-signed>> = <<34:18/native-signed>>,
+ X end.",
+ 34),
+ ?line check(fun() -> <<X:18/big-unsigned>> = <<34:18/big-unsigned>>,
+ X end,
+ "begin <<X:18/big-unsigned>> = <<34:18/big-unsigned>>,
+ X end.",
+ 34),
+ ?line check(fun() ->
+ <<X:18/little-unsigned>> = <<34:18/little-unsigned>>,
+ X end,
+ "begin <<X:18/little-unsigned>> = <<34:18/little-unsigned>>,
+ X end.",
+ 34),
+ ?line check(fun() ->
+ <<X:18/native-unsigned>> = <<34:18/native-unsigned>>,
+ X end,
+ "begin <<X:18/native-unsigned>> = <<34:18/native-unsigned>>,
+ X end.",
+ 34),
+ ?line check(fun() -> <<X:32/float-big>> = <<2.0:32/float-big>>, X end,
+ "begin <<X:32/float-big>> = <<2.0:32/float-big>>,
+ X end.",
+ 2.0),
+ ?line check(fun() -> <<X:32/float-little>> = <<2.0:32/float-little>>,
+ X end,
+ "begin <<X:32/float-little>> = <<2.0:32/float-little>>,
+ X end.",
+ 2.0),
+ ?line check(fun() -> <<X:32/float-native>> = <<2.0:32/float-native>>,
+ X end,
+ "begin <<X:32/float-native>> = <<2.0:32/float-native>>,
+ X end.",
+ 2.0),
+
+ ?line check(
+ fun() ->
+ [X || <<"hej",X:8>> <= <<"hej",8,"san",9,"hej",17,"hej">>]
+ end,
+ "[X || <<\"hej\",X:8>> <=
+ <<\"hej\",8,\"san\",9,\"hej\",17,\"hej\">>].",
+ [8,17]),
+ ?line check(
+ fun() ->
+ L = 8, << <<B:32>> || <<L:L,B:L>> <= <<16:8, 7:16>> >>
+ end,
+ "begin L = 8, << <<B:32>> || <<L:L,B:L>> <= <<16:8, 7:16>> >>
+ end.",
+ <<0,0,0,7>>),
+ %% Test the Value part of a binary segment.
+ %% "Old" bugs have been fixed (partial_eval is called on Value).
+ ?line check(fun() -> [ 3 || <<17/float>> <= <<17.0/float>>] end,
+ "[ 3 || <<17/float>> <= <<17.0/float>>].",
+ [3]),
+ ?line check(fun() -> [ 3 || <<17/float>> <- [<<17.0/float>>]] end,
+ "[ 3 || <<17/float>> <- [<<17.0/float>>]].",
+ [3]),
+ ?line check(fun() -> [ X || <<17/float,X:3>> <= <<17.0/float,2:3>>] end,
+ "[ X || <<17/float,X:3>> <= <<17.0/float,2:3>>].",
+ [2]),
+ ?line check(fun() ->
+ [ foo || <<(1 bsl 1023)/float>> <= <<(1 bsl 1023)/float>>]
+ end,
+ "[ foo || <<(1 bsl 1023)/float>> <= <<(1 bsl 1023)/float>>].",
+ [foo]),
+ ?line check(fun() ->
+ [ foo || <<(1 bsl 1023)/float>> <- [<<(1 bsl 1023)/float>>]]
+ end,
+ "[ foo || <<(1 bsl 1023)/float>> <- [<<(1 bsl 1023)/float>>]].",
+ [foo]),
+ ?line error_check("[ foo || <<(1 bsl 1024)/float>> <-
+ [<<(1 bsl 1024)/float>>]].",
+ badarg),
+ ?line check(fun() ->
+ [ foo || <<(1 bsl 1024)/float>> <- [<<(1 bsl 1023)/float>>]]
+ end,
+ "[ foo || <<(1 bsl 1024)/float>> <-
+ [<<(1 bsl 1023)/float>>]].",
+ []),
+ ?line check(fun() ->
+ [ foo || <<(1 bsl 1024)/float>> <= <<(1 bsl 1023)/float>>]
+ end,
+ "[ foo || <<(1 bsl 1024)/float>> <=
+ <<(1 bsl 1023)/float>>].",
+ []),
+ ?line check(fun() ->
+ L = 8,
+ [{L,B} || <<L:L,B:L/float>> <= <<32:8,7:32/float>>]
+ end,
+ "begin L = 8,
+ [{L,B} || <<L:L,B:L/float>> <= <<32:8,7:32/float>>]
+ end.",
+ [{32,7.0}]),
+ ?line check(fun() ->
+ L = 8,
+ [{L,B} || <<L:L,B:L/float>> <- [<<32:8,7:32/float>>]]
+ end,
+ "begin L = 8,
+ [{L,B} || <<L:L,B:L/float>> <- [<<32:8,7:32/float>>]]
+ end.",
+ [{32,7.0}]),
+ ?line check(fun() ->
+ [foo || <<"s">> <= <<"st">>]
+ end,
+ "[foo || <<\"s\">> <= <<\"st\">>].",
+ [foo]),
+ ?line check(fun() -> <<_:32>> = <<17:32>> end,
+ "<<_:32>> = <<17:32>>.",
+ <<17:32>>),
+ ?line check(fun() -> [foo || <<_:32>> <= <<17:32,20:32>>] end,
+ "[foo || <<_:32>> <= <<17:32,20:32>>].",
+ [foo,foo]),
+
+ ?line check(fun() -> << <<X:32>> || X <- [1,2,3], X > 1 >> end,
+ "<< <<X:32>> || X <- [1,2,3], X > 1 >>.",
+ <<0,0,0,2,0,0,0,3>>),
+ ?line error_check("[X || <<X>> <= [a,b]].",{bad_generator,[a,b]}),
+ ok.
+
+otp_6787(doc) ->
+ ["OTP-6787. bitlevel binaries."];
+otp_6787(suite) ->
+ [];
+otp_6787(Config) when is_list(Config) ->
+ ?line check(
+ fun() -> <<16:(1024*1024)>> = <<16:(1024*1024)>> end,
+ "<<16:(1024*1024)>> = <<16:(1024*1024)>>.",
+ <<16:1048576>>),
+ ok.
+
+otp_6977(doc) ->
+ ["OTP-6977. ++ bug."];
+otp_6977(suite) ->
+ [];
+otp_6977(Config) when is_list(Config) ->
+ ?line check(
+ fun() -> (fun([$X] ++ _) -> ok end)("X") end,
+ "(fun([$X] ++ _) -> ok end)(\"X\").",
+ ok),
+ ok.
+
+otp_7550(doc) ->
+ ["OTP-7550. Support for UTF-8, UTF-16, UTF-32."];
+otp_7550(Config) when is_list(Config) ->
+
+ %% UTF-8.
+ ?line check(
+ fun() -> <<65>> = <<65/utf8>> end,
+ "<<65>> = <<65/utf8>>.",
+ <<65>>),
+ ?line check(
+ fun() -> <<350/utf8>> = <<197,158>> end,
+ "<<350/utf8>> = <<197,158>>.",
+ <<197,158>>),
+ ?line check(
+ fun() -> <<$b,$j,$\303,$\266,$r,$n>> = <<"bj\366rn"/utf8>> end,
+ "<<$b,$j,$\303,$\266,$r,$n>> = <<\"bj\366rn\"/utf8>>.",
+ <<$b,$j,$\303,$\266,$r,$n>>),
+
+ %% UTF-16.
+ ?line check(
+ fun() -> <<0,65>> = <<65/utf16>> end,
+ "<<0,65>> = <<65/utf16>>.",
+ <<0,65>>),
+ ?line check(
+ fun() -> <<16#D8,16#08,16#DF,16#45>> = <<16#12345/utf16>> end,
+ "<<16#D8,16#08,16#DF,16#45>> = <<16#12345/utf16>>.",
+ <<16#D8,16#08,16#DF,16#45>>),
+ ?line check(
+ fun() -> <<16#08,16#D8,16#45,16#DF>> = <<16#12345/little-utf16>> end,
+ "<<16#08,16#D8,16#45,16#DF>> = <<16#12345/little-utf16>>.",
+ <<16#08,16#D8,16#45,16#DF>>),
+
+ ?line check(
+ fun() -> <<350/utf16>> = <<1,94>> end,
+ "<<350/utf16>> = <<1,94>>.",
+ <<1,94>>),
+ ?line check(
+ fun() -> <<350/little-utf16>> = <<94,1>> end,
+ "<<350/little-utf16>> = <<94,1>>.",
+ <<94,1>>),
+ ?line check(
+ fun() -> <<16#12345/utf16>> = <<16#D8,16#08,16#DF,16#45>> end,
+ "<<16#12345/utf16>> = <<16#D8,16#08,16#DF,16#45>>.",
+ <<16#D8,16#08,16#DF,16#45>>),
+ ?line check(
+ fun() -> <<16#12345/little-utf16>> = <<16#08,16#D8,16#45,16#DF>> end,
+ "<<16#12345/little-utf16>> = <<16#08,16#D8,16#45,16#DF>>.",
+ <<16#08,16#D8,16#45,16#DF>>),
+
+ %% UTF-32.
+ ?line check(
+ fun() -> <<16#12345/utf32>> = <<16#0,16#01,16#23,16#45>> end,
+ "<<16#12345/utf32>> = <<16#0,16#01,16#23,16#45>>.",
+ <<16#0,16#01,16#23,16#45>>),
+ ?line check(
+ fun() -> <<16#0,16#01,16#23,16#45>> = <<16#12345/utf32>> end,
+ "<<16#0,16#01,16#23,16#45>> = <<16#12345/utf32>>.",
+ <<16#0,16#01,16#23,16#45>>),
+ ?line check(
+ fun() -> <<16#12345/little-utf32>> = <<16#45,16#23,16#01,16#00>> end,
+ "<<16#12345/little-utf32>> = <<16#45,16#23,16#01,16#00>>.",
+ <<16#45,16#23,16#01,16#00>>),
+ ?line check(
+ fun() -> <<16#12345/little-utf32>> end,
+ "<<16#12345/little-utf32>>.",
+ <<16#45,16#23,16#01,16#00>>),
+
+ %% Mixed.
+ ?line check(
+ fun() -> <<16#41,16#12345/utf32,16#0391:16,16#2E:8>> end,
+ "<<16#41,16#12345/utf32,16#0391:16,16#2E:8>>.",
+ <<16#41,16#00,16#01,16#23,16#45,16#03,16#91,16#2E>>),
+ ok.
+
+
+otp_8133(doc) ->
+ ["OTP-8133. Bit comprehension bug."];
+otp_8133(suite) ->
+ [];
+otp_8133(Config) when is_list(Config) ->
+ ?line check(
+ fun() ->
+ E = fun(N) ->
+ if
+ is_integer(N) -> <<N/integer>>;
+ true -> throw(foo)
+ end
+ end,
+ try << << (E(V))/binary >> || V <- [1,2,3,a] >>
+ catch foo -> ok
+ end
+ end,
+ "begin
+ E = fun(N) ->
+ if is_integer(N) -> <<N/integer>>;
+ true -> throw(foo)
+ end
+ end,
+ try << << (E(V))/binary >> || V <- [1,2,3,a] >>
+ catch foo -> ok
+ end
+ end.",
+ ok),
+ ?line check(
+ fun() ->
+ E = fun(N) ->
+ if
+ is_integer(N) -> <<N/integer>>;
+ true -> erlang:error(foo)
+ end
+ end,
+ try << << (E(V))/binary >> || V <- [1,2,3,a] >>
+ catch error:foo -> ok
+ end
+ end,
+ "begin
+ E = fun(N) ->
+ if is_integer(N) -> <<N/integer>>;
+ true -> erlang:error(foo)
+ end
+ end,
+ try << << (E(V))/binary >> || V <- [1,2,3,a] >>
+ catch error:foo -> ok
+ end
+ end.",
+ ok),
+ ok.
+
+funs(doc) ->
+ ["Simple cases, just to cover some code."];
+funs(suite) ->
+ [];
+funs(Config) when is_list(Config) ->
+ do_funs(none, none),
+ do_funs(lfh(), none),
+ do_funs(lfh(), efh()),
+
+ ?line error_check("nix:foo().", {access_not_allowed,nix}, lfh(), efh()),
+ ?line error_check("bar().", undef, none, none),
+
+ ?line check(fun() -> F1 = fun(F,N) -> ?MODULE:count_down(F, N) end,
+ F1(F1, 1000) end,
+ "begin F1 = fun(F,N) -> count_down(F, N) end,"
+ "F1(F1,1000) end.",
+ 0, ['F1'], lfh(), none),
+
+ ?line check(fun() -> F1 = fun(F,N) -> ?MODULE:count_down(F, N) end,
+ F1(F1, 1000) end,
+ "begin F1 = fun(F,N) -> count_down(F, N) end,"
+ "F1(F1,1000) end.",
+ 0, ['F1'], lfh_value(), none),
+
+ ?line check(fun() -> F1 = fun(F,N) -> ?MODULE:count_down(F, N) end,
+ F1(F1, 1000) end,
+ "begin F1 = fun(F,N) -> count_down(F, N) end,"
+ "F1(F1,1000) end.",
+ 0, ['F1'], lfh_value_extra(), none),
+
+ ?line check(fun() -> F1 = fun(F,N) -> ?MODULE:count_down(F, N) end,
+ F1(F1, 1000) end,
+ "begin F1 = fun(F,N) -> count_down(F, N) end,"
+ "F1(F1,1000) end.",
+ 0, ['F1'], {?MODULE,local_func_value}, none),
+ %% This is not documented, and only for backward compatibility (good!).
+ B0 = erl_eval:new_bindings(),
+ ?line check(fun() -> is_function(?MODULE:count_down_fun()) end,
+ "begin is_function(count_down_fun()) end.",
+ true, [], {?MODULE,local_func,[B0]},none),
+
+ EF = fun({timer,sleep}, As) when length(As) == 1 -> exit({got_it,sleep});
+ ({M,F}, As) -> apply(M, F, As)
+ end,
+ EFH = {value, EF},
+ ?line error_check("apply(timer, sleep, [1]).", got_it, none, EFH),
+ ?line error_check("begin F = fun(T) -> timer:sleep(T) end,F(1) end.",
+ got_it, none, EFH),
+ ?line error_check("fun c/1.", undef),
+ ?line error_check("fun a:b/0().", undef),
+
+ MaxArgs = 20,
+ ?line [true] =
+ lists:usort([run_many_args(SAs) || SAs <- many_args(MaxArgs)]),
+ ?line {'EXIT',{{argument_limit,_},_}} =
+ (catch run_many_args(many_args1(MaxArgs+1))),
+ ok.
+
+run_many_args({S, As}) ->
+ apply(eval_string(S), As) =:= As.
+
+many_args(N) ->
+ [many_args1(I) || I <- lists:seq(1, N)].
+
+many_args1(N) ->
+ F = fun(L, P) ->
+ tl(lists:flatten([","++P++integer_to_list(E) || E <- L]))
+ end,
+ L = lists:seq(1, N),
+ T = F(L, "V"),
+ S = lists:flatten(io_lib:format("fun(~s) -> [~s] end.", [T, T])),
+ {S, L}.
+
+do_funs(LFH, EFH) ->
+ %% LFH is not really used by these examples...
+
+ %% These tests do not prove that tail recursive functions really
+ %% work (that the process does not grow); one should also run them
+ %% manually with 1000 replaced by 1000000.
+
+ M = atom_to_list(?MODULE),
+ ?line check(fun() -> F1 = fun(F,N) -> ?MODULE:count_down(F, N) end,
+ F1(F1, 1000) end,
+ concat(["begin F1 = fun(F,N) -> ", M,
+ ":count_down(F, N) end, F1(F1,1000) end."]),
+ 0, ['F1'], LFH, EFH),
+ ?line check(fun() -> F1 = fun(F,N) -> apply(?MODULE,count_down,[F,N])
+ end, F1(F1, 1000) end,
+ concat(["begin F1 = fun(F,N) -> apply(", M,
+ ",count_down,[F, N]) end, F1(F1,1000) end."]),
+ 0, ['F1'], LFH, EFH),
+ ?line check(fun() -> F1 = fun(F,N) -> {?MODULE,count_down}(F,N)
+ end, F1(F1, 1000) end,
+ concat(["begin F1 = fun(F,N) -> {", M,
+ ",count_down}(F, N) end, F1(F1,1000) end."]),
+ 0, ['F1'], LFH, EFH),
+ ?line check(fun() -> F = fun(F,N) when N > 0 -> apply(F,[F,N-1]);
+ (_F,0) -> ok end,
+ F(F, 1000)
+ end,
+ "begin F = fun(F,N) when N > 0 -> apply(F,[F,N-1]);"
+ "(_F,0) -> ok end,"
+ "F(F, 1000) end.",
+ ok, ['F'], LFH, EFH),
+ ?line check(fun() -> F = fun(F,N) when N > 0 ->
+ apply(erlang,apply,[F,[F,N-1]]);
+ (_F,0) -> ok end,
+ F(F, 1000)
+ end,
+ "begin F = fun(F,N) when N > 0 ->"
+ "apply(erlang,apply,[F,[F,N-1]]);"
+ "(_F,0) -> ok end,"
+ "F(F, 1000) end.",
+ ok, ['F'], LFH, EFH),
+ ?line check(fun() -> F = count_down_fun(),
+ SF = fun(SF, F1, N) -> F(SF, F1, N) end,
+ SF(SF, F, 1000) end,
+ concat(["begin F = ", M, ":count_down_fun(),"
+ "SF = fun(SF, F1, N) -> F(SF, F1, N) end,"
+ "SF(SF, F, 1000) end."]),
+ ok, ['F','SF'], LFH, EFH),
+
+
+ ?line check(fun() -> F = fun(X) -> A = 1+X, {X,A} end,
+ true = {2,3} == F(2) end,
+ "begin F = fun(X) -> A = 1+X, {X,A} end,
+ true = {2,3} == F(2) end.", true, ['F'], LFH, EFH),
+ ?line check(fun() -> F = fun(X) -> {erlang,'+'}(X,2) end,
+ true = 3 == F(1) end,
+ "begin F = fun(X) -> {erlang,'+'}(X,2) end,"
+ " true = 3 == F(1) end.", true, ['F'],
+ LFH, EFH),
+ ?line check(fun() -> F = fun(X) -> byte_size(X) end,
+ ?MODULE:do_apply(F,<<"hej">>) end,
+ concat(["begin F = fun(X) -> size(X) end,",
+ M,":do_apply(F,<<\"hej\">>) end."]),
+ 3, ['F'], LFH, EFH),
+
+ ?line check(fun() -> F1 = fun(X, Z) -> {X,Z} end,
+ Z = 5,
+ F2 = fun(X, Y) -> F1(Z,{X,Y}) end,
+ F3 = fun(X, Y) -> {a,F1(Z,{X,Y})} end,
+ {5,{x,y}} = F2(x,y),
+ {a,{5,{y,x}}} = F3(y,x),
+ {5,{5,y}} = F2(Z,y),
+ true = {5,{x,5}} == F2(x,Z) end,
+ "begin F1 = fun(X, Z) -> {X,Z} end,
+ Z = 5,
+ F2 = fun(X, Y) -> F1(Z,{X,Y}) end,
+ F3 = fun(X, Y) -> {a,F1(Z,{X,Y})} end,
+ {5,{x,y}} = F2(x,y),
+ {a,{5,{y,x}}} = F3(y,x),
+ {5,{5,y}} = F2(Z,y),
+ true = {5,{x,5}} == F2(x,Z) end.",
+ true, ['F1','Z','F2','F3'], LFH, EFH),
+ ?line check(fun() -> F = fun(X) -> byte_size(X) end,
+ F2 = fun(Y) -> F(Y) end,
+ ?MODULE:do_apply(F2,<<"hej">>) end,
+ concat(["begin F = fun(X) -> size(X) end,",
+ "F2 = fun(Y) -> F(Y) end,",
+ M,":do_apply(F2,<<\"hej\">>) end."]),
+ 3, ['F','F2'], LFH, EFH),
+ ?line check(fun() -> Z = 5, F = fun(X) -> {Z,X} end,
+ F2 = fun(Z) -> F(Z) end, F2(3) end,
+ "begin Z = 5, F = fun(X) -> {Z,X} end,
+ F2 = fun(Z) -> F(Z) end, F2(3) end.",
+ {5,3},['F','F2','Z'], LFH, EFH),
+ ?line check(fun() -> F = fun(Z) -> Z end,
+ F2 = fun(X) -> F(X), Z = {X,X}, Z end,
+ {1,1} = F2(1), Z = 7, Z end,
+ "begin F = fun(Z) -> Z end,
+ F2 = fun(X) -> F(X), Z = {X,X}, Z end,
+ {1,1} = F2(1), Z = 7, Z end.", 7, ['F','F2','Z'],
+ LFH, EFH),
+ ?line check(fun() -> F = fun(F, N) -> [?MODULE:count_down(F,N) || X <-[1]]
+ end, F(F,2) end,
+ concat(["begin F = fun(F, N) -> [", M,
+ ":count_down(F,N) || X <-[1]] end, F(F,2) end."]),
+ [[[0]]], ['F'], LFH, EFH),
+
+ %% Tests for a bug found by the Dialyzer - used to crash.
+ ?line check(fun() -> Pmod = erl_eval_helper:new(42), Pmod:add(5) end,
+ "begin Pmod = erl_eval_helper:new(42), Pmod:add(5) end.",
+ 47,
+ ['Pmod'], LFH, EFH),
+ ?line check(fun() -> Pmod = erl_eval_helper:new(42), B = Pmod:add(7), B end,
+ "begin Pmod = erl_eval_helper:new(42), B = Pmod:add(7), B end.",
+ 49,
+ ['B','Pmod'], LFH, EFH),
+
+ ok.
+
+count_down(F, N) when N > 0 ->
+ F(F, N-1);
+count_down(_F, N) ->
+ N.
+
+count_down_fun() ->
+ fun(SF,F,N) when N > 0 -> SF(SF,F,N-1);
+ (_SF,_F,_N) -> ok
+ end.
+
+do_apply(F, V) ->
+ F(V).
+
+lfh() ->
+ {eval, fun(F, As, Bs) -> local_func(F, As, Bs) end}.
+
+local_func(F, As0, Bs0) when is_atom(F) ->
+ {As,Bs} = erl_eval:expr_list(As0, Bs0, {eval,lfh()}),
+ case erlang:function_exported(?MODULE, F, length(As)) of
+ true ->
+ {value,apply(?MODULE, F, As),Bs};
+ false ->
+ {value,apply(shell_default, F, As),Bs}
+ end.
+
+lfh_value_extra() ->
+ %% Not documented.
+ {value, fun(F, As) -> local_func_value(F, As) end, []}.
+
+lfh_value() ->
+ {value, fun(F, As) -> local_func_value(F, As) end}.
+
+local_func_value(F, As) when is_atom(F) ->
+ case erlang:function_exported(?MODULE, F, length(As)) of
+ true ->
+ apply(?MODULE, F, As);
+ false ->
+ apply(shell_default, F, As)
+ end.
+
+efh() ->
+ {value, fun(F, As) -> external_func(F, As) end}.
+
+external_func({M,_}, _As) when M == nix ->
+ exit({{access_not_allowed,M},[mfa]});
+external_func(F, As) when is_function(F) ->
+ apply(F, As);
+external_func({M,F}, As) ->
+ apply(M, F, As).
+
+
+
+try_catch(doc) ->
+ ["Test try-of-catch-after-end statement"];
+try_catch(suite) ->
+ [];
+try_catch(Config) when is_list(Config) ->
+ %% Match in of with catch
+ ?line check(fun() -> try 1 of 1 -> 2 catch _:_ -> 3 end end,
+ "try 1 of 1 -> 2 catch _:_ -> 3 end.", 2),
+ ?line check(fun() -> try 1 of 1 -> 2; 3 -> 4 catch _:_ -> 5 end end,
+ "try 1 of 1 -> 2; 3 -> 4 catch _:_ -> 5 end.", 2),
+ ?line check(fun() -> try 3 of 1 -> 2; 3 -> 4 catch _:_ -> 5 end end,
+ "try 3 of 1 -> 2; 3 -> 4 catch _:_ -> 5 end.", 4),
+ %% Just after
+ ?line check(fun () -> X = try 1 after put(try_catch, 2) end,
+ {X,get(try_catch)} end,
+ "begin X = try 1 after put(try_catch, 2) end, "
+ "{X,get(try_catch)} end.", {1,2}),
+ %% Match in of with after
+ ?line check(fun() -> X = try 1 of 1 -> 2 after put(try_catch, 3) end,
+ {X,get(try_catch)} end,
+ "begin X = try 1 of 1 -> 2 after put(try_catch, 3) end, "
+ "{X,get(try_catch)} end.", {2,3}),
+ ?line check(fun() -> X = try 1 of 1 -> 2; 3 -> 4
+ after put(try_catch, 5) end,
+ {X,get(try_catch)} end,
+ "begin X = try 1 of 1 -> 2; 3 -> 4 "
+ " after put(try_catch, 5) end, "
+ " {X,get(try_catch)} end.", {2,5}),
+ ?line check(fun() -> X = try 3 of 1 -> 2; 3 -> 4
+ after put(try_catch, 5) end,
+ {X,get(try_catch)} end,
+ "begin X = try 3 of 1 -> 2; 3 -> 4 "
+ " after put(try_catch, 5) end, "
+ " {X,get(try_catch)} end.", {4,5}),
+ %% Nomatch in of
+ ?line error_check("try 1 of 2 -> 3 catch _:_ -> 4 end.",
+ {try_clause,1}),
+ %% Nomatch in of with after
+ ?line check(fun () -> {'EXIT',{{try_clause,1},_}} =
+ begin catch try 1 of 2 -> 3
+ after put(try_catch, 4) end end,
+ get(try_catch) end,
+ "begin {'EXIT',{{try_clause,1},_}} = "
+ " begin catch try 1 of 2 -> 3 "
+ " after put(try_catch, 4) end end, "
+ " get(try_catch) end. ", 4),
+ %% Exception in try
+ ?line check(fun () -> try 1=2 catch error:{badmatch,2} -> 3 end end,
+ "try 1=2 catch error:{badmatch,2} -> 3 end.", 3),
+ ?line check(fun () -> try 1=2 of 3 -> 4
+ catch error:{badmatch,2} -> 5 end end,
+ "try 1=2 of 3 -> 4 "
+ "catch error:{badmatch,2} -> 5 end.", 5),
+ %% Exception in try with after
+ ?line check(fun () -> X = try 1=2
+ catch error:{badmatch,2} -> 3
+ after put(try_catch, 4) end,
+ {X,get(try_catch)} end,
+ "begin X = try 1=2 "
+ " catch error:{badmatch,2} -> 3 "
+ " after put(try_catch, 4) end, "
+ " {X,get(try_catch)} end. ", {3,4}),
+ ?line check(fun () -> X = try 1=2 of 3 -> 4
+ catch error:{badmatch,2} -> 5
+ after put(try_catch, 6) end,
+ {X,get(try_catch)} end,
+ "begin X = try 1=2 of 3 -> 4"
+ " catch error:{badmatch,2} -> 5 "
+ " after put(try_catch, 6) end, "
+ " {X,get(try_catch)} end. ", {5,6}),
+ %% Uncaught exception
+ ?line error_check("try 1=2 catch error:undefined -> 3 end. ",
+ {badmatch,2}),
+ ?line error_check("try 1=2 of 3 -> 4 catch error:undefined -> 5 end. ",
+ {badmatch,2}),
+ %% Uncaught exception with after
+ ?line check(fun () -> {'EXIT',{{badmatch,2},_}} =
+ begin catch try 1=2
+ after put(try_catch, 3) end end,
+ get(try_catch) end,
+ "begin {'EXIT',{{badmatch,2},_}} = "
+ " begin catch try 1=2 "
+ " after put(try_catch, 3) end end, "
+ " get(try_catch) end. ", 3),
+ ?line check(fun () -> {'EXIT',{{badmatch,2},_}} =
+ begin catch try 1=2 of 3 -> 4
+ after put(try_catch, 5) end end,
+ get(try_catch) end,
+ "begin {'EXIT',{{badmatch,2},_}} = "
+ " begin catch try 1=2 of 3 -> 4"
+ " after put(try_catch, 5) end end, "
+ " get(try_catch) end. ", 5),
+ ?line check(fun () -> {'EXIT',{{badmatch,2},_}} =
+ begin catch try 1=2 catch error:undefined -> 3
+ after put(try_catch, 4) end end,
+ get(try_catch) end,
+ "begin {'EXIT',{{badmatch,2},_}} = "
+ " begin catch try 1=2 catch error:undefined -> 3 "
+ " after put(try_catch, 4) end end, "
+ " get(try_catch) end. ", 4),
+ ?line check(fun () -> {'EXIT',{{badmatch,2},_}} =
+ begin catch try 1=2 of 3 -> 4
+ catch error:undefined -> 5
+ after put(try_catch, 6) end end,
+ get(try_catch) end,
+ "begin {'EXIT',{{badmatch,2},_}} = "
+ " begin catch try 1=2 of 3 -> 4 "
+ " catch error:undefined -> 5 "
+ " after put(try_catch, 6) end end, "
+ " get(try_catch) end. ", 6),
+ ok.
+
+
+eval_expr_5(doc) ->
+ ["(OTP-7933)"];
+eval_expr_5(suite) ->
+ [];
+eval_expr_5(Config) when is_list(Config) ->
+ ?line {ok,Tokens ,_} =
+ erl_scan:string("if a+4 == 4 -> yes; true -> no end. "),
+ ?line {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ ?line {value, no, []} = erl_eval:expr(Expr, [], none, none, none),
+ ?line no = erl_eval:expr(Expr, [], none, none, value),
+ try
+ erl_eval:expr(Expr, [], none, none, 4711),
+ ?line function_clause = should_never_reach_here
+ catch
+ error:function_clause ->
+ ok
+ end.
+
+%% Check the string in different contexts: as is; in fun; from compiled code.
+check(F, String, Result) ->
+ check1(F, String, Result),
+ FunString = concat(["fun() -> ", no_final_dot(String), " end(). "]),
+ check1(F, FunString, Result),
+ CompileString = concat(["hd(lists:map(fun(_) -> ", no_final_dot(String),
+ " end, [foo])). "]),
+ check1(F, CompileString, Result).
+
+check1(F, String, Result) ->
+ Result = F(),
+ case catch parse_and_run(String) of
+ {value, Result, _} ->
+ ok;
+ Other ->
+ test_server:fail({eval, Other, Result})
+ end.
+
+check(F, String, Result, BoundVars, LFH, EFH) ->
+ Result = F(),
+ case catch parse_and_run(String, LFH, EFH) of
+ {value, Result, Bs} ->
+ %% We just assume that Bs is an orddict...
+ Keys = orddict:fetch_keys(Bs),
+ case sort(BoundVars) == Keys of
+ true ->
+ ok;
+ false ->
+ test_server:fail({check, BoundVars, Keys})
+ end,
+ ok;
+ Other ->
+ test_server:fail({check, Other, Result})
+ end.
+
+error_check(String, Result) ->
+ case catch parse_and_run(String) of
+ {'EXIT', {Result,_}} ->
+ ok;
+ Other ->
+ test_server:fail({eval, Other, Result})
+ end.
+
+error_check(String, Result, LFH, EFH) ->
+ case catch parse_and_run(String, LFH, EFH) of
+ {'EXIT', {Result,_}} ->
+ ok;
+ Other ->
+ test_server:fail({eval, Other, Result})
+ end.
+
+eval_string(String) ->
+ {value, Result, _} = parse_and_run(String),
+ Result.
+
+parse_and_run(String) ->
+ {ok,Tokens,_} = erl_scan:string(String),
+ {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ erl_eval:expr(Expr, []).
+
+parse_and_run(String, LFH, EFH) ->
+ {ok,Tokens,_} = erl_scan:string(String),
+ {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ erl_eval:expr(Expr, [], LFH, EFH).
+
+no_final_dot(S) ->
+ case lists:reverse(S) of
+ " ." ++ R -> lists:reverse(R);
+ "." ++ R -> lists:reverse(R);
+ _ -> S
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 21:52:11 +0000