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8868edaf CR |
1 | # This program is free software: you can redistribute it and/or modify |
2 | # it under the terms of the GNU General Public License as published by | |
3 | # the Free Software Foundation, either version 3 of the License, or | |
4 | # (at your option) any later version. | |
5 | # | |
6 | # This program is distributed in the hope that it will be useful, | |
7 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | # GNU General Public License for more details. | |
10 | # | |
11 | # You should have received a copy of the GNU General Public License | |
12 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
13 | # | |
ac50fbac CR |
14 | function f1 |
15 | { | |
16 | typeset -n v=$1 | |
17 | ||
18 | v=inside | |
19 | } | |
20 | ||
21 | v=global | |
22 | f1 v | |
23 | echo $v | |
24 | ||
25 | unset v | |
26 | unset -f f1 | |
27 | ||
28 | function foo | |
29 | { | |
30 | typeset x=one | |
31 | ||
32 | typeset -n y=$1 | |
33 | y=two | |
34 | echo inside: $x | |
35 | } | |
36 | ||
37 | foo x | |
38 | echo outside: $x | |
39 | ||
40 | function foo2 | |
41 | { | |
42 | typeset -n x=$1 | |
43 | ||
44 | x=foo | |
45 | } | |
46 | ||
47 | foo2 x | |
48 | echo $x | |
49 | ||
50 | unset -f foo | |
51 | function foo { typeset -n v=$1; v=local; } | |
52 | ||
53 | v=global | |
54 | foo v | |
55 | echo $v | |
56 | ||
57 | unset v | |
58 | ||
59 | # invalid self reference at global scope | |
60 | typeset -n v=v | |
61 | ||
62 | # can we catch a circular self-reference? | |
63 | typeset -n v=w | |
64 | typeset -n w=x | |
65 | typeset -n x=v | |
66 | ||
67 | x=4 | |
68 | echo x = $x | |
69 | ||
70 | unset -n v w x | |
a0c0a00f CR |
71 | |
72 | # can we keep local variables invisible when we add nameref attribute? | |
73 | function f { typeset x; typeset -n x; x=y; } | |
74 | f |