#!./perl
-# $RCSfile: local.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:04 $
-
-print "1..58\n";
+print "1..75\n";
sub foo {
local($a, $b) = @_;
eval 'local($$e)';
print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 21\n";
-eval 'local(@$e)';
+eval '$e = []; local(@$e)';
print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 22\n";
-eval 'local(%$e)';
+eval '$e = {}; local(%$e)';
print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 23\n";
# Array and hash elements
sub TIEHASH { bless {}, $_[0] }
sub STORE { print "# STORE [@_]\n"; $_[0]->{$_[1]} = $_[2] }
sub FETCH { my $v = $_[0]->{$_[1]}; print "# FETCH [@_=$v]\n"; $v }
+ sub EXISTS { print "# EXISTS [@_]\n"; exists $_[0]->{$_[1]}; }
sub DELETE { print "# DELETE [@_]\n"; delete $_[0]->{$_[1]}; }
sub CLEAR { print "# CLEAR [@_]\n"; %{$_[0]} = (); }
}
{
local($h{'a'}) = 'foo';
local($h{'b'}) = $h{'b'};
+ local($h{'y'});
+ local($h{'z'}) = 33;
print +($h{'a'} eq 'foo') ? "" : "not ", "ok 42\n";
print +($h{'b'} == 2) ? "" : "not ", "ok 43\n";
local($h{'c'});
$ENV{_Y_} = 'b';
$ENV{_Z_} = 'c';
{
+ local($ENV{_A_});
+ local($ENV{_B_}) = 'foo';
local($ENV{_X_}) = 'foo';
local($ENV{_Y_}) = $ENV{_Y_};
print +($ENV{_X_} eq 'foo') ? "" : "not ", "ok 54\n";
print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 57\n";
print +($ENV{_Z_} eq 'c') ? "" : "not ", "ok 58\n";
+# does implicit localization in foreach skip magic?
+
+$_ = "ok 59,ok 60,";
+my $iter = 0;
+while (/(o.+?),/gc) {
+ print "$1\n";
+ foreach (1..1) { $iter++ }
+ if ($iter > 2) { print "not ok 60\n"; last; }
+}
+
+{
+ package UnderScore;
+ sub TIESCALAR { bless \my $self, shift }
+ sub FETCH { die "read \$_ forbidden" }
+ sub STORE { die "write \$_ forbidden" }
+ tie $_, __PACKAGE__;
+ my $t = 61;
+ my @tests = (
+ "Nesting" => sub { print '#'; for (1..3) { print }
+ print "\n" }, 1,
+ "Reading" => sub { print }, 0,
+ "Matching" => sub { $x = /badness/ }, 0,
+ "Concat" => sub { $_ .= "a" }, 0,
+ "Chop" => sub { chop }, 0,
+ "Filetest" => sub { -x }, 0,
+ "Assignment" => sub { $_ = "Bad" }, 0,
+ # XXX whether next one should fail is debatable
+ "Local \$_" => sub { local $_ = 'ok?'; print }, 0,
+ "for local" => sub { for("#ok?\n"){ print } }, 1,
+ );
+ while ( ($name, $code, $ok) = splice(@tests, 0, 3) ) {
+ print "# Testing $name\n";
+ eval { &$code };
+ print(($ok xor $@) ? "ok $t\n" : "not ok $t\n");
+ ++$t;
+ }
+ untie $_;
+}
+
+{
+ # BUG 20001205.22
+ my %x;
+ $x{a} = 1;
+ { local $x{b} = 1; }
+ print "not " if exists $x{b};
+ print "ok 70\n";
+ { local @x{c,d,e}; }
+ print "not " if exists $x{c};
+ print "ok 71\n";
+}
+
+# these tests should be physically located after tests 46 and 58,
+# but are here instead to avoid renumbering everything.
+
+# local() should preserve the existenceness of tied hashes and %ENV
+print "not " if exists $h{'y'}; print "ok 72\n";
+print "not " if exists $h{'z'}; print "ok 73\n";
+print "not " if exists $ENV{_A_}; print "ok 74\n";
+print "not " if exists $ENV{_B_}; print "ok 75\n";