/
autoincrement.t
213 lines (173 loc) · 4.95 KB
/
autoincrement.t
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
use Test;
# Tests for auto-increment and auto-decrement operators
# originally from Perl 5, by way of t/operators/auto.t
plan 54;
#L<S03/Autoincrement precedence>
my $base = 10000;
my $x = 10000;
is(0 + ++$x - 1, $base, '0 + ++$x - 1');
is(0 + $x-- - 1, $base, '0 + $x-- - 1');
is(1 * $x, $base, '1 * $x');
is(0 + $x-- - 0, $base, '0 + $x-- - 0');
is(1 + $x, $base, '1 + $x');
is(1 + $x++, $base, '1 + $x++');
is(0 + $x, $base, '0 + $x');
is(0 + --$x + 1, $base, '0 + --$x + 1');
is(0 + ++$x + 0, $base, '0 + ++$x + 0');
is($x, $base, '$x');
my @x;
@x[0] = 10000;
is(0 + ++@x[0] - 1, $base, '0 + ++@x[0] - 1');
is(0 + @x[0]-- - 1, $base, '0 + @x[0]-- - 1');
is(1 * @x[0], $base, '1 * @x[0]');
is(0 + @x[0]-- - 0, $base, '0 + @x[0]-- - 0');
is(1 + @x[0], $base, '1 + @x[0]');
is(1 + @x[0]++, $base, '1 + @x[0]++');
is(0 + @x[0], $base, '0 + @x[0]');
is(0 + ++@x[0] - 1, $base, '0 + ++@x[0] - 1');
is(0 + --@x[0] + 0, $base, '0 + --@x[0] + 0');
is(@x[0], $base, '@x[0]');
my %z;
%z{0} = 10000;
is(0 + ++%z{0} - 1, $base, '0 + ++%z{0} - 1');
is(0 + %z{0}-- - 1, $base, '0 + %z{0}-- - 1');
is(1 * %z{0}, $base, '1 * %z{0}');
is(0 + %z{0}-- - 0, $base, '0 + %z{0}-- - 0');
is(1 + %z{0}, $base, '1 + %z{0}');
is(1 + %z{0}++, $base, '1 + %z{0}++');
is(0 + %z{0}, $base, '0 + %z{0}');
is(0 + ++%z{0} - 1, $base, '0 + ++%z{0} - 1');
is(0 + --%z{0} + 0, $base, '0 + --%z{0} + 0');
is(%z{0}, $base, '%z{0}');
# Increment of a Str
#L<S03/Autoincrement precedence/Increment of a>
# XXX: these need to be re-examined and extended per changes to S03.
# Also, see the thread at
# http://www.nntp.perl.org/group/perl.perl6.compiler/2007/06/msg1598.html
# which prompted many of the changes to Str autoincrement/autodecrement.
{
# These are the ranges specified in S03.
# They might be handy for some DDT later.
my @rangechar = (
[ 'A', 'Z' ],
[ 'a', 'z' ],
[ "\x[391]", "\x[3a9]" ],
[ "\x[3b1]", "\x[3c9]" ],
[ "\x[5d0]", "\x[5ea]" ],
[ '0', '9' ],
[ "\x[660]", "\x[669]" ],
[ "\x[966]", "\x[96f]" ],
[ "\x[9e6]", "\x[9ef]" ],
[ "\x[a66]", "\x[a6f]" ],
[ "\x[ae6]", "\x[aef]" ],
[ "\x[b66]", "\x[b6f]" ],
);
}
{
my $x;
$x = "123.456";
#?pugs todo
is( ++$x, "124.456", "'123.456'++ is '124.456' (NOT 123.457)" );
$x = "124.456";
is( --$x, "123.456", "'124.456'-- is '123.456'" );
}
{
my $x;
$x = "/tmp/pix000.jpg";
#?pugs todo
is( ++$x, "/tmp/pix001.jpg", "'/tmp/pix000.jpg'++ is '/tmp/pix001.jpg'" );
$x = "/tmp/pix001.jpg";
#?pugs todo
is( --$x, "/tmp/pix000.jpg", "'/tmp/pix001.jpg'-- is '/tmp/pix000.jpg'" );
}
{
my $x;
# EBCDIC check (i and j not contiguous)
$x = "zi";
is( ++$x, "zj", "'zi'++ is 'zj'" );
$x = "zj";
#?pugs todo
is( --$x, "zi", "'zj'-- is 'zi'" );
$x = "zr";
# EBCDIC check (r and s not contiguous)
is( ++$x, "zs", "'zr'++ is 'zs'" );
$x = "zs";
#?pugs todo
is( --$x, "zr", "'zs'-- is 'zr'" );
}
#?niecza skip "Failure NYI"
#?pugs skip "Failure NYI"
{
my $foo;
$foo = 'A00';
ok(--$foo ~~ Failure, "Decrement of 'A00' should fail");
# TODO: Check that the Failure is "Decrement out of range" and not
# some other unrelated error (for the fail tests above).
}
{
my $foo;
$foo = "\x[3a1]";
#?rakudo todo 'weird ranges'
#?pugs todo 'weird ranges'
is( ++$foo, "\x[3a3]", 'there is no \\x[3a2]' );
}
{
my $foo = "K\x[3c9]";
#?rakudo todo 'weird ranges'
#?pugs todo 'weird ranges'
is( ++$foo, "L\x[3b1]", "increment 'K\x[3c9]'" );
}
{
my $x;
is ++$x, 1, 'Can autoincrement a Mu variable (prefix)';
my $y;
$y++;
is $y, 1, 'Can autoincrement a Mu variable (postfix)';
}
#?pugs skip "todo"
#?DOES 2
{
class Incrementor {
has $.value;
method succ() {
Incrementor.new( value => $.value + 42);
}
}
my $o = Incrementor.new( value => 0 );
$o++;
is $o.value, 42, 'Overriding succ catches postfix increment';
++$o;
is $o.value, 84, 'Overriding succ catches prefix increment';
}
#?pugs skip "todo"
#?DOES 2
{
class Decrementor {
has $.value;
method pred() {
Decrementor.new( value => $.value - 42);
}
}
my $o = Decrementor.new( value => 100 );
$o--;
is $o.value, 58, 'Overriding pred catches postfix decrement';
--$o;
is $o.value, 16, 'Overriding pred catches prefix decrement';
}
#?pugs skip "todo"
#?DOES 6
{
# L<S03/Autoincrement precedence/Increment of a>
my $x = "b";
is $x.succ, 'c', '.succ for Str';
is $x.pred, 'a', '.pred for Str';
my $y = 1;
is $y.succ, 2, '.succ for Int';
is $y.pred, 0, '.pred for Int';
my $z = Num.new();
is $z.succ, 1 , '.succ for Num';
is $z.pred, -1, '.pred for Num'
}
# RT #63644
eval_dies_ok 'my $a; $a++ ++;', 'parse error for "$a++ ++"';
# vim: ft=perl6