mirror of https://github.com/n-hys/bash.git
75 lines
1.3 KiB
Plaintext
75 lines
1.3 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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function f1
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{
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typeset -n v=$1
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v=inside
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}
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v=global
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f1 v
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echo $v
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unset v
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unset -f f1
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function foo
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{
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typeset x=one
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typeset -n y=$1
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y=two
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echo inside: $x
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}
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foo x
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echo outside: $x
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function foo2
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{
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typeset -n x=$1
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x=foo
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}
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foo2 x
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echo $x
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unset -f foo
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function foo { typeset -n v=$1; v=local; }
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v=global
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foo v
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echo $v
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unset v
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# invalid self reference at global scope
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typeset -n v=v
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# can we catch a circular self-reference?
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typeset -n v=w
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typeset -n w=x
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typeset -n x=v
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x=4
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echo x = $x
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unset -n v w x
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# can we keep local variables invisible when we add nameref attribute?
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function f { typeset x; typeset -n x; x=y; }
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f
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