-
Notifications
You must be signed in to change notification settings - Fork 135
/
substr-rw.t
160 lines (120 loc) · 4.46 KB
/
substr-rw.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
use v6;
use Test;
plan 40;
{
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string");
{
my $r = substr-rw($str, 0, 5);
is($r, "gloop", '$r referent is eq to the substr-rwing');
$r = "boing";
#?rakudo todo 'NYI'
is($str, "boing ding", "assignment to reference modifies original");
is($r, "boing", '$r is consistent');
my $o = substr-rw($str, 3, 2);
#?rakudo 3 todo 'NYI'
is($o, "ng", "other ref to other lvalue");
$r = "foo";
is($str, "foo ding", "lvalue ref size varies but still works");
is($o, " d", "other lvalue wiggled around");
}
}
{ # as lvalue, should work
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string");
};
{ # as lvalue, using :=, should work
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string");
my $r := substr-rw($str, 0, 5);
is($r, "gloop", 'bound $r is eq to the substr-rwing');
$r = "boing";
is($str, "boing ding", "assignment to bound var modifies original");
is($r, "boing", 'bound $r is consistent');
my $o := substr-rw($str, 3, 2);
is($o, "ng", "other bound var to other lvalue");
$r = "foo";
is($str, "foo ding", "lvalue ref size varies but still works");
is($o, " d", "other lvalue wiggled around");
};
{
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string (substr-rw(Int, Int)).");
{
my $r = \substr-rw($str, 0, 5);
ok(WHAT($r).gist, '$r is a reference (substr-rw(Int, Int)).');
is($$r, "gloop", '$r referent is eq to the substr-rwing (substr-rw(Int, Int)).');
$$r = "boing";
#?rakudo todo 'NYI'
is($str, "boing ding", "assignment to reference modifies original (substr-rw(Int, Int)).");
is($$r, "boing", '$r is consistent (substr-rw(Int, Int)).');
my $o = \substr-rw($str, 3, 2);
#?rakudo 3 todo 'NYI'
is($$o, "ng", "other ref to other lvalue (substr-rw(Int, Int)).");
$$r = "foo";
is($str, "foo ding", "lvalue ref size varies but still works (substr-rw(Int, Int)).");
is($$o, " d", "other lvalue wiggled around (substr-rw(Int, Int)).");
}
}
{ # as lvalue, should work
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string (substr-rw(Int, Int)).");
};
{ # as lvalue, using :=, should work
my $str = "gorch ding";
substr-rw($str, 0, 5) = "gloop";
is($str, "gloop ding", "lvalue assignment modified original string (substr-rw(Int, Int)).");
my $r := substr-rw($str, 0, 5);
is($r, "gloop", 'bound $r is eq to the substr-rwing (substr-rw(Int, Int)).');
$r = "boing";
is($str, "boing ding", "assignment to bound var modifies original (substr-rw(Int, Int)).");
is($r, "boing", 'bound $r is consistent (substr-rw(Int, Int)).');
my $o := substr-rw($str, 3, 2);
is($o, "ng", "other bound var to other lvalue (substr-rw(Int, Int)).");
$r = "foo";
is($str, "foo ding", "lvalue ref size varies but still works (substr-rw(Int, Int)).");
is($o, " d", "other lvalue wiggled around (substr-rw(Int, Int)).");
};
{
my $str = 'foo';
$str.substr-rw(2,1) = 'x';
is($str, 'fox', 'method form of substr-rw works');
};
{ # ranges
my $str = 'foo';
substr-rw($str, 2..2) = 'x';
is($str, 'fox', 'substr-rw with a Range should work');
substr-rw($str, 1..2) = 'at';
is($str, 'fat', 'Str.substr-rw with a Range should work');
substr-rw($str, 0..^1) = 'h';
is($str, 'hat', 'Str.substr-rw with a Range should work');
substr-rw($str, 0^..1) = 'o';
is($str, 'hot', 'Str.substr-rw with a Range should work');
substr-rw($str, 0^..^1) = 'o';
is($str, 'hoot', 'Str.substr-rw with a Range should work');
}
# RT #114526
{
my $str = 'ab';
substr-rw($str, 0, 3) = '/';
is "--$str--", '--/--',
'substr-rw handles end positions that are out of range';
}
# RT #125402
{
my $s = 'foobar';
$s.substr-rw(3, 3) = 1;
is $s, 'foo1', 'assigning a non-string coerces';
}
# RT #127782
{
my $s = '.' x 4 ~ 'a';
$s.substr-rw(1,1) = '';
is $s, '...a', '.substr-rw on a string constructed with `x` operator';
}
# vim: ft=perl6