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Diffstat (limited to 'contrib/perl5/t/op/local.t')
| -rwxr-xr-x | contrib/perl5/t/op/local.t | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/contrib/perl5/t/op/local.t b/contrib/perl5/t/op/local.t new file mode 100755 index 000000000000..2f674d103bfe --- /dev/null +++ b/contrib/perl5/t/op/local.t @@ -0,0 +1,200 @@ +#!./perl + +# $RCSfile: local.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:04 $ + +print "1..58\n"; + +# XXX known to leak scalars +$ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3; + +sub foo { + local($a, $b) = @_; + local($c, $d); + $c = "ok 3\n"; + $d = "ok 4\n"; + { local($a,$c) = ("ok 9\n", "ok 10\n"); ($x, $y) = ($a, $c); } + print $a, $b; + $c . $d; +} + +$a = "ok 5\n"; +$b = "ok 6\n"; +$c = "ok 7\n"; +$d = "ok 8\n"; + +print &foo("ok 1\n","ok 2\n"); + +print $a,$b,$c,$d,$x,$y; + +# same thing, only with arrays and associative arrays + +sub foo2 { + local($a, @b) = @_; + local(@c, %d); + @c = "ok 13\n"; + $d{''} = "ok 14\n"; + { local($a,@c) = ("ok 19\n", "ok 20\n"); ($x, $y) = ($a, @c); } + print $a, @b; + $c[0] . $d{''}; +} + +$a = "ok 15\n"; +@b = "ok 16\n"; +@c = "ok 17\n"; +$d{''} = "ok 18\n"; + +print &foo2("ok 11\n","ok 12\n"); + +print $a,@b,@c,%d,$x,$y; + +eval 'local($$e)'; +print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 21\n"; + +eval 'local(@$e)'; +print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 22\n"; + +eval 'local(%$e)'; +print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 23\n"; + +# Array and hash elements + +@a = ('a', 'b', 'c'); +{ + local($a[1]) = 'foo'; + local($a[2]) = $a[2]; + print +($a[1] eq 'foo') ? "" : "not ", "ok 24\n"; + print +($a[2] eq 'c') ? "" : "not ", "ok 25\n"; + undef @a; +} +print +($a[1] eq 'b') ? "" : "not ", "ok 26\n"; +print +($a[2] eq 'c') ? "" : "not ", "ok 27\n"; +print +(!defined $a[0]) ? "" : "not ", "ok 28\n"; + +@a = ('a', 'b', 'c'); +{ + local($a[1]) = "X"; + shift @a; +} +print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 29\n"; + +%h = ('a' => 1, 'b' => 2, 'c' => 3); +{ + local($h{'a'}) = 'foo'; + local($h{'b'}) = $h{'b'}; + print +($h{'a'} eq 'foo') ? "" : "not ", "ok 30\n"; + print +($h{'b'} == 2) ? "" : "not ", "ok 31\n"; + local($h{'c'}); + delete $h{'c'}; +} +print +($h{'a'} == 1) ? "" : "not ", "ok 32\n"; +print +($h{'b'} == 2) ? "" : "not ", "ok 33\n"; +print +($h{'c'} == 3) ? "" : "not ", "ok 34\n"; + +# check for scope leakage +$a = 'outer'; +if (1) { local $a = 'inner' } +print +($a eq 'outer') ? "" : "not ", "ok 35\n"; + +# see if localization works when scope unwinds +local $m = 5; +eval { + for $m (6) { + local $m = 7; + die "bye"; + } +}; +print $m == 5 ? "" : "not ", "ok 36\n"; + +# see if localization works on tied arrays +{ + package TA; + sub TIEARRAY { bless [], $_[0] } + sub STORE { print "# STORE [@_]\n"; $_[0]->[$_[1]] = $_[2] } + sub FETCH { my $v = $_[0]->[$_[1]]; print "# FETCH [@_=$v]\n"; $v } + sub CLEAR { print "# CLEAR [@_]\n"; @{$_[0]} = (); } + sub FETCHSIZE { scalar(@{$_[0]}) } + sub SHIFT { shift (@{$_[0]}) } + sub EXTEND {} +} + +tie @a, 'TA'; +@a = ('a', 'b', 'c'); +{ + local($a[1]) = 'foo'; + local($a[2]) = $a[2]; + print +($a[1] eq 'foo') ? "" : "not ", "ok 37\n"; + print +($a[2] eq 'c') ? "" : "not ", "ok 38\n"; + @a = (); +} +print +($a[1] eq 'b') ? "" : "not ", "ok 39\n"; +print +($a[2] eq 'c') ? "" : "not ", "ok 40\n"; +print +(!defined $a[0]) ? "" : "not ", "ok 41\n"; + +{ + package TH; + sub TIEHASH { bless {}, $_[0] } + sub STORE { print "# STORE [@_]\n"; $_[0]->{$_[1]} = $_[2] } + sub FETCH { my $v = $_[0]->{$_[1]}; print "# FETCH [@_=$v]\n"; $v } + sub DELETE { print "# DELETE [@_]\n"; delete $_[0]->{$_[1]}; } + sub CLEAR { print "# CLEAR [@_]\n"; %{$_[0]} = (); } +} + +# see if localization works on tied hashes +tie %h, 'TH'; +%h = ('a' => 1, 'b' => 2, 'c' => 3); + +{ + local($h{'a'}) = 'foo'; + local($h{'b'}) = $h{'b'}; + print +($h{'a'} eq 'foo') ? "" : "not ", "ok 42\n"; + print +($h{'b'} == 2) ? "" : "not ", "ok 43\n"; + local($h{'c'}); + delete $h{'c'}; +} +print +($h{'a'} == 1) ? "" : "not ", "ok 44\n"; +print +($h{'b'} == 2) ? "" : "not ", "ok 45\n"; +print +($h{'c'} == 3) ? "" : "not ", "ok 46\n"; + +@a = ('a', 'b', 'c'); +{ + local($a[1]) = "X"; + shift @a; +} +print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 47\n"; + +# now try the same for %SIG + +$SIG{TERM} = 'foo'; +$SIG{INT} = \&foo; +$SIG{__WARN__} = $SIG{INT}; +{ + local($SIG{TERM}) = $SIG{TERM}; + local($SIG{INT}) = $SIG{INT}; + local($SIG{__WARN__}) = $SIG{__WARN__}; + print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 48\n"; + print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 49\n"; + print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 50\n"; + local($SIG{INT}); + delete $SIG{__WARN__}; +} +print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 51\n"; +print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 52\n"; +print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 53\n"; + +# and for %ENV + +$ENV{_X_} = 'a'; +$ENV{_Y_} = 'b'; +$ENV{_Z_} = 'c'; +{ + local($ENV{_X_}) = 'foo'; + local($ENV{_Y_}) = $ENV{_Y_}; + print +($ENV{_X_} eq 'foo') ? "" : "not ", "ok 54\n"; + print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 55\n"; + local($ENV{_Z_}); + delete $ENV{_Z_}; +} +print +($ENV{_X_} eq 'a') ? "" : "not ", "ok 56\n"; +print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 57\n"; +print +($ENV{_Z_} eq 'c') ? "" : "not ", "ok 58\n"; + |