1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2009. 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(core_fold_SUITE).
-export([all/1,
t_element/1,setelement/1,t_length/1,append/1,t_apply/1,bifs/1,
eq/1,nested_call_in_case/1,coverage/1]).
-export([foo/0,foo/1,foo/2,foo/3]).
-include("test_server.hrl").
all(suite) ->
test_lib:recompile(?MODULE),
[t_element,setelement,t_length,append,t_apply,bifs,
eq,nested_call_in_case,coverage].
t_element(Config) when is_list(Config) ->
X = make_ref(),
?line X = id(element(1, {X,y,z})),
?line b = id(element(2, {a,b,c,d})),
%% No optimization, but should work.
Tuple = id({x,y,z}),
Pos = id(3),
?line x = id(element(1, Tuple)),
?line c = id(element(Pos, {a,b,c,d})),
?line X = id(element(Pos, {a,b,X,d})),
?line z = id(element(Pos, Tuple)),
%% Calls that will fail.
?line {'EXIT',{badarg,_}} = (catch element(5, {a,b,c,d})),
?line {'EXIT',{badarg,_}} = (catch element(5, {a,b,X,d})),
?line {'EXIT',{badarg,_}} = (catch element(5.0, {a,b,X,d})),
case id({a,b,c}) of
{_,_,_}=Tup ->
?line {'EXIT',{badarg,_}} = (catch element(4, Tup))
end,
ok.
setelement(Config) when is_list(Config) ->
X = id(b),
New = id([1,2,3]),
?line {y,b,c} = id(setelement(1, {a,b,c}, y)),
?line {y,b,c} = id(setelement(1, {a,X,c}, y)),
?line {a,y,c} = id(setelement(2, {a,X,c}, y)),
?line {a,[1,2,3],c} = id(setelement(2, {a,b,c}, New)),
?line {a,[1,2,3],c} = id(setelement(2, {a,X,c}, New)),
?line {a,b,[1,2,3]} = id(setelement(3, {a,b,c}, New)),
?line {a,b,[1,2,3]} = id(setelement(3, {a,X,c}, New)),
?line {'EXIT',{badarg,_}} = (catch setelement_crash({a,b,c,d,e,f})),
?line error = setelement_crash_2({a,b,c,d,e,f}, <<42>>),
ok.
setelement_crash(Tuple) ->
%% Used to crash the compiler because sys_core_dsetel did not notice that
%% X1 was used in bit syntax construction.
X1 = setelement(5, Tuple, new),
X2 = setelement(3, X1, new),
{X2,<<X1>>}.
setelement_crash_2(Tuple, Bin) ->
%% Used to crash the compiler because sys_core_dsetel did not notice that
%% X1 was used as a size field in bit syntax matching.
X1 = setelement(5, Tuple, new),
X2 = setelement(3, X1, new),
case Bin of
<<42:X1>> -> X2;
_ -> error
end.
t_length(Config) when is_list(Config) ->
Blurf = id({blurf,a,b}),
Tail = id([42,43,44,45]),
?line 0 = id(length([])),
?line 1 = id(length([x])),
?line 2 = id(length([x,Blurf])),
?line 4 = id(length([x,Blurf,a,b])),
%% No or partial optimization.
?line 4 = length(Tail),
?line 5 = id(length([x|Tail])),
%% Will fail.
?line {'EXIT',{badarg,_}} = (catch id(length([a,b|c]))),
?line {'EXIT',{badarg,_}} = (catch id(length([a,Blurf|c]))),
?line {'EXIT',{badarg,_}} = (catch id(length(atom))),
ok.
-define(APPEND(A, B), (fun(Res) ->
Res = lists:append(A, B),
Res = erlang:append(A, B),
Res = erlang:'++'(A, B)
end)(A++B)).
append(Config) when is_list(Config) ->
A = id(0),
?line [a,b,c,d,e,f,g,h,i,j,k] = id(?APPEND([a,b,c,d,e,f],[g,h,i,j,k])),
?line [a,b,c,d,e] = id(?APPEND([a,b,c],id([d,e]))),
?line [0,1,2,3,4,5,6] = id(?APPEND([A,1,2,3],[4,5,6])),
?line {'EXIT',{badarg,_}} = (catch id(?APPEND([A|blurf],[4,5,6]))),
ok.
t_apply(Config) when is_list(Config) ->
?line ok = apply(?MODULE, foo, []),
?line 4 = apply(?MODULE, foo, [3]),
?line 7 = apply(?MODULE, foo, [3,4]),
?line 12 = apply(?MODULE, foo, [id(8),4]),
?line 21 = apply(?MODULE, foo, [8,id(9),4]),
?line 20 = apply(?MODULE, foo, [8,8,id(4)]),
?line 24 = apply(?MODULE, foo, [id(10),10,4]),
M = id(?MODULE),
?line ok = apply(M, foo, []),
?line 4 = apply(M, foo, [3]),
?line 16.0 = apply(M, foo, [12.0,4]),
%% Will fail.
?line {'EXIT',{badarg,_}} = (catch apply([a,b,c], foo, [])),
?line {'EXIT',{badarg,_}} = (catch apply(42, foo, [])),
?line {'EXIT',{badarg,_}} = (catch apply(?MODULE, 45, [xx])),
?line {'EXIT',{badarg,_}} = (catch apply(?MODULE, foo, {a,b})),
?line {'EXIT',{badarg,_}} = (catch apply(M, M, [1009|10010])),
?line {'EXIT',{badarg,_}} = (catch apply(?MODULE, foo, [10000|9999])),
?line {'EXIT',{badarg,_}} = (catch apply(?MODULE, foo, a)),
ok.
foo() ->
ok.
foo(A) ->
A+1.
foo(A, B) ->
A + B.
foo(A, B, C) ->
A + B + C.
bifs(Config) when is_list(Config) ->
?line <<1,2,3,4>> = id(list_to_binary([1,2,3,4])),
ok.
-define(CMP_SAME(A0, B), (fun(A) -> true = A == B, false = A /= B end)(id(A0))).
-define(CMP_DIFF(A0, B), (fun(A) -> false = A == B, true = A /= B end)(id(A0))).
eq(Config) when is_list(Config) ->
?line ?CMP_SAME([a,b,c], [a,b,c]),
?line ?CMP_SAME([42.0], [42.0]),
?line ?CMP_SAME([42], [42]),
?line ?CMP_SAME([42.0], [42]),
?line ?CMP_DIFF(a, [a]),
?line ?CMP_DIFF(a, {1,2,3}),
ok.
%% OTP-7117.
nested_call_in_case(Config) when is_list(Config) ->
?line PrivDir = ?config(priv_dir, Config),
?line Dir = filename:dirname(code:which(?MODULE)),
?line Core = filename:join(Dir, "nested_call_in_case"),
?line Opts = [from_core,{outdir,PrivDir}|test_lib:opt_opts(?MODULE)],
?line io:format("~p", [Opts]),
?line {ok,Mod} = c:c(Core, Opts),
?line yes = Mod:a([1,2,3], 2),
?line no = Mod:a([1,2,3], 4),
?line {'EXIT',_} = (catch Mod:a(not_a_list, 42)),
ok.
coverage(Config) when is_list(Config) ->
?line {'EXIT',{{case_clause,{a,b,c}},_}} =
(catch cover_will_match_list_type({a,b,c})),
?line {'EXIT',{{case_clause,{a,b,c,d}},_}} =
(catch cover_will_match_list_type({a,b,c,d})),
?line a = cover_remove_non_vars_alias({a,b,c}),
?line error = cover_will_match_lit_list(),
%% Make sure that we don't attempt to make literals
%% out of pids. (Putting a pid into a #c_literal{}
%% would crash later compiler passes.)
case list_to_pid("<0.42.0>") of
Pid when is_pid(Pid) -> ok
end,
ok.
cover_will_match_list_type(A) ->
case A of
{a,_,_} -> %Set type of A to {a,_,_}.
case A of
{a,_,_,_} -> ok %Compare type and pattern.
end
end.
%% Make sure the remove_non_vars/4 can handle aliases in the type argument.
cover_remove_non_vars_alias(X) ->
case X of
{a=Y,_,_} -> %Set type of A to {a=Y,_,_}.
case X of
{_,_,_} -> %Compare type and pattern.
Y
end
end.
cover_will_match_lit_list() ->
case {1,2,3} of %Literal case expression.
{_,$A,$A} -> %Pattern that does not match.
ok;
_ ->
error
end.
id(I) -> I.
|
