qw(
"" stringify
-0+ numify) # Order of arguments unsignificant
+0+ numify) # Order of arguments insignificant
);
sub new {
package main;
-our $test = 0;
$| = 1;
-use Test::More tests=>498;
-
-sub test {
- $test++;
- if (@_ > 1) {
- my $comment = "";
- $comment = " # " . $_ [2] if @_ > 2;
- if ($_[0] eq $_[1]) {
- print "ok $test$comment\n";
- return 1;
- } else {
- $comment .= ": '$_[0]' ne '$_[1]'";
- print "not ok $test$comment\n";
- return 0;
- }
- } else {
- if (shift) {
- print "ok $test\n";
- return 1;
- } else {
- print "not ok $test\n";
- return 0;
- }
- }
-}
+use Test::More tests => 556;
+
$a = new Oscalar "087";
$b= "$a";
-# All test numbers in comments are off by 1.
-# So much for hard-wiring them in :-) To fix this:
-test(1); # 1
-
-test ($b eq $a); # 2
-test ($b eq "087"); # 3
-test (ref $a eq "Oscalar"); # 4
-test ($a eq $a); # 5
-test ($a eq "087"); # 6
+is($b, $a);
+is($b, "087");
+is(ref $a, "Oscalar");
+is($a, $a);
+is($a, "087");
$c = $a + 7;
-test (ref $c eq "Oscalar"); # 7
-test (!($c eq $a)); # 8
-test ($c eq "94"); # 9
+is(ref $c, "Oscalar");
+isnt($c, $a);
+is($c, "94");
$b=$a;
-test (ref $a eq "Oscalar"); # 10
+is(ref $a, "Oscalar");
$b++;
-test (ref $b eq "Oscalar"); # 11
-test ( $a eq "087"); # 12
-test ( $b eq "88"); # 13
-test (ref $a eq "Oscalar"); # 14
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
$c=$b;
$c-=$a;
-test (ref $c eq "Oscalar"); # 15
-test ( $a eq "087"); # 16
-test ( $c eq "1"); # 17
-test (ref $a eq "Oscalar"); # 18
+is(ref $c, "Oscalar");
+is($a, "087");
+is($c, "1");
+is(ref $a, "Oscalar");
$b=1;
$b+=$a;
-test (ref $b eq "Oscalar"); # 19
-test ( $a eq "087"); # 20
-test ( $b eq "88"); # 21
-test (ref $a eq "Oscalar"); # 22
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
eval q[ package Oscalar; use overload ('++' => sub { $ {$_[0]}++;$_[0] } ) ];
$b=$a;
-test (ref $a eq "Oscalar"); # 23
+is(ref $a, "Oscalar");
$b++;
-test (ref $b eq "Oscalar"); # 24
-test ( $a eq "087"); # 25
-test ( $b eq "88"); # 26
-test (ref $a eq "Oscalar"); # 27
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
package Oscalar;
$dummy=bless \$dummy; # Now cache of method should be reloaded
$b=$a;
$b++;
-test (ref $b eq "Oscalar"); # 28
-test ( $a eq "087"); # 29
-test ( $b eq "88"); # 30
-test (ref $a eq "Oscalar"); # 31
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
undef $b; # Destroying updates tables too...
$b=$a;
-test (ref $a eq "Oscalar"); # 32
+is(ref $a, "Oscalar");
$b++;
-test (ref $b eq "Oscalar"); # 33
-test ( $a eq "087"); # 34
-test ( $b eq "88"); # 35
-test (ref $a eq "Oscalar"); # 36
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
package Oscalar;
$dummy=bless \$dummy; # Now cache of method should be reloaded
$b++;
-test (ref $b eq "Oscalar"); # 37
-test ( $a eq "087"); # 38
-test ( $b eq "90"); # 39
-test (ref $a eq "Oscalar"); # 40
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "90");
+is(ref $a, "Oscalar");
$b=$a;
$b++;
-test (ref $b eq "Oscalar"); # 41
-test ( $a eq "087"); # 42
-test ( $b eq "89"); # 43
-test (ref $a eq "Oscalar"); # 44
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "89");
+is(ref $a, "Oscalar");
-test ($b? 1:0); # 45
+ok($b? 1:0);
eval q[ package Oscalar; use overload ('=' => sub {$main::copies++;
package Oscalar;
$b=new Oscalar "$a";
-test (ref $b eq "Oscalar"); # 46
-test ( $a eq "087"); # 47
-test ( $b eq "087"); # 48
-test (ref $a eq "Oscalar"); # 49
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "087");
+is(ref $a, "Oscalar");
$b++;
-test (ref $b eq "Oscalar"); # 50
-test ( $a eq "087"); # 51
-test ( $b eq "89"); # 52
-test (ref $a eq "Oscalar"); # 53
-test ($copies == 0); # 54
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "89");
+is(ref $a, "Oscalar");
+is($copies, undef);
$b+=1;
-test (ref $b eq "Oscalar"); # 55
-test ( $a eq "087"); # 56
-test ( $b eq "90"); # 57
-test (ref $a eq "Oscalar"); # 58
-test ($copies == 0); # 59
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "90");
+is(ref $a, "Oscalar");
+is($copies, undef);
$b=$a;
$b+=1;
-test (ref $b eq "Oscalar"); # 60
-test ( $a eq "087"); # 61
-test ( $b eq "88"); # 62
-test (ref $a eq "Oscalar"); # 63
-test ($copies == 0); # 64
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "88");
+is(ref $a, "Oscalar");
+is($copies, undef);
$b=$a;
$b++;
-test (ref $b eq "Oscalar") || print ref $b,"=ref(b)\n"; # 65
-test ( $a eq "087"); # 66
-test ( $b eq "89"); # 67
-test (ref $a eq "Oscalar"); # 68
-test ($copies == 1); # 69
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "89");
+is(ref $a, "Oscalar");
+is($copies, 1);
eval q[package Oscalar; use overload ('+=' => sub {$ {$_[0]} += 3*$_[1];
$_[0] } ) ];
$b=$a;
$b+=1;
-test (ref $b eq "Oscalar"); # 70
-test ( $a eq "087"); # 71
-test ( $b eq "90"); # 72
-test (ref $a eq "Oscalar"); # 73
-test ($copies == 2); # 74
+is(ref $b, "Oscalar");
+is($a, "087");
+is($b, "90");
+is(ref $a, "Oscalar");
+is($copies, 2);
$b+=$b;
-test (ref $b eq "Oscalar"); # 75
-test ( $b eq "360"); # 76
-test ($copies == 2); # 77
+is(ref $b, "Oscalar");
+is($b, "360");
+is($copies, 2);
$b=-$b;
-test (ref $b eq "Oscalar"); # 78
-test ( $b eq "-360"); # 79
-test ($copies == 2); # 80
+is(ref $b, "Oscalar");
+is($b, "-360");
+is($copies, 2);
$b=abs($b);
-test (ref $b eq "Oscalar"); # 81
-test ( $b eq "360"); # 82
-test ($copies == 2); # 83
+is(ref $b, "Oscalar");
+is($b, "360");
+is($copies, 2);
$b=abs($b);
-test (ref $b eq "Oscalar"); # 84
-test ( $b eq "360"); # 85
-test ($copies == 2); # 86
+is(ref $b, "Oscalar");
+is($b, "360");
+is($copies, 2);
eval q[package Oscalar;
use overload ('x' => sub {new Oscalar ( $_[2] ? "_.$_[1]._" x $ {$_[0]}
$a=new Oscalar "yy";
$a x= 3;
-test ($a eq "_.yy.__.yy.__.yy._"); # 87
+is($a, "_.yy.__.yy.__.yy._");
eval q[package Oscalar;
use overload ('.' => sub {new Oscalar ( $_[2] ?
$a=new Oscalar "xx";
-test ("b${a}c" eq "_._.b.__.xx._.__.c._"); # 88
+is("b${a}c", "_._.b.__.xx._.__.c._");
# Check inheritance of overloading;
{
}
$aI = new OscalarI "$a";
-test (ref $aI eq "OscalarI"); # 89
-test ("$aI" eq "xx"); # 90
-test ($aI eq "xx"); # 91
-test ("b${aI}c" eq "_._.b.__.xx._.__.c._"); # 92
+is(ref $aI, "OscalarI");
+is("$aI", "xx");
+is($aI, "xx");
+is("b${aI}c", "_._.b.__.xx._.__.c._");
# Here we test blessing to a package updates hash
eval "package Oscalar; no overload '.'";
-test ("b${a}" eq "_.b.__.xx._"); # 93
+is("b${a}", "_.b.__.xx._");
$x="1";
bless \$x, Oscalar;
-test ("b${a}c" eq "bxxc"); # 94
+is("b${a}c", "bxxc");
new Oscalar 1;
-test ("b${a}c" eq "bxxc"); # 95
+is("b${a}c", "bxxc");
# Negative overloading:
$na = eval { ~$a };
-test($@ =~ /no method found/); # 96
+like($@, qr/no method found/);
# Check AUTOLOADING:
eval "package Oscalar; sub comple; use overload '~' => 'comple'";
$na = eval { ~$a }; # Hash was not updated
-test($@ =~ /no method found/); # 97
+like($@, qr/no method found/);
bless \$x, Oscalar;
$na = eval { ~$a }; # Hash updated
warn "`$na', $@" if $@;
-test !$@; # 98
-test($na eq '_!_xx_!_'); # 99
+ok !$@;
+is($na, '_!_xx_!_');
$na = 0;
-{
- my $Test = Test::Builder->new;
- $Test->current_test(99);
-}
$na = eval { ~$aI }; # Hash was not updated
like($@, qr/no method found/);
}, 'deref';
# Hash:
my @cont = sort %$deref;
- if ("\t" eq "\011") { # ascii
+ if ("\t" eq "\011") { # ASCII
is("@cont", '23 5 fake foo');
}
- else { # ebcdic alpha-numeric sort order
+ else { # EBCDIC alpha-numeric sort order
is("@cont", 'fake foo 23 5');
}
my @keys = sort keys %$deref;
main::is("$int_x", 1054);
}
-# make sure that we don't inifinitely recurse
+# make sure that we don't infinitely recurse
{
my $c = 0;
package Recurse;
like(overload::StrVal(sub{1}), qr/^CODE\(0x[0-9a-f]+\)$/);
like(overload::StrVal(\*GLOB), qr/^GLOB\(0x[0-9a-f]+\)$/);
like(overload::StrVal(\$o), qr/^REF\(0x[0-9a-f]+\)$/);
- like(overload::StrVal(qr/a/), qr/^Regexp=SCALAR\(0x[0-9a-f]+\)$/);
+ like(overload::StrVal(qr/a/), qr/^Regexp=REGEXP\(0x[0-9a-f]+\)$/);
like(overload::StrVal($o), qr/^perl31793=ARRAY\(0x[0-9a-f]+\)$/);
like(overload::StrVal($of), qr/^perl31793_fb=ARRAY\(0x[0-9a-f]+\)$/);
like(overload::StrVal($no), qr/^no_overload=ARRAY\(0x[0-9a-f]+\)$/);
}
-# These are all check that overloaded values rather than reference addressess
+# These are all check that overloaded values rather than reference addresses
# are what is getting tested.
my ($two, $one, $un, $deux) = map {new Numify $_} 2, 1, 1, 2;
my ($ein, $zwei) = (1, 2);
BEGIN { overload::constant integer => sub { 23 } }
is(eval "17", $twenty_three);
}
+
+{
+ package Sklorsh;
+ use overload
+ bool => sub { shift->is_cool };
+
+ sub is_cool {
+ $_[0]->{name} eq 'cool';
+ }
+
+ sub delete {
+ undef %{$_[0]};
+ bless $_[0], 'Brap';
+ return 1;
+ }
+
+ sub delete_with_self {
+ my $self = shift;
+ undef %$self;
+ bless $self, 'Brap';
+ return 1;
+ }
+
+ package Brap;
+
+ 1;
+
+ package main;
+
+ my $obj;
+ $obj = bless {name => 'cool'}, 'Sklorsh';
+ $obj->delete;
+ ok(eval {if ($obj) {1}; 1}, $@ || 'reblessed into nonexistent namespace');
+
+ $obj = bless {name => 'cool'}, 'Sklorsh';
+ $obj->delete_with_self;
+ ok (eval {if ($obj) {1}; 1}, $@);
+
+ my $a = $b = {name => 'hot'};
+ bless $b, 'Sklorsh';
+ is(ref $a, 'Sklorsh');
+ is(ref $b, 'Sklorsh');
+ ok(!$b, "Expect overloaded boolean");
+ ok(!$a, "Expect overloaded boolean");
+}
+{
+ use Scalar::Util 'weaken';
+
+ package Shklitza;
+ use overload '""' => sub {"CLiK KLAK"};
+
+ package Ksshfwoom;
+
+ package main;
+
+ my ($obj, $ref);
+ $obj = bless do {my $a; \$a}, 'Shklitza';
+ $ref = $obj;
+
+ is ($obj, "CLiK KLAK");
+ is ($ref, "CLiK KLAK");
+
+ weaken $ref;
+ is ($ref, "CLiK KLAK");
+
+ bless $obj, 'Ksshfwoom';
+
+ like ($obj, qr/^Ksshfwoom=/);
+ like ($ref, qr/^Ksshfwoom=/);
+
+ undef $obj;
+ is ($ref, undef);
+}
+
+{
+ package bit;
+ # bit operations have overloadable assignment variants too
+
+ sub new { bless \$_[1], $_[0] }
+
+ use overload
+ "&=" => sub { bit->new($_[0]->val . ' & ' . $_[1]->val) },
+ "^=" => sub { bit->new($_[0]->val . ' ^ ' . $_[1]->val) },
+ "|" => sub { bit->new($_[0]->val . ' | ' . $_[1]->val) }, # |= by fallback
+ ;
+
+ sub val { ${$_[0]} }
+
+ package main;
+
+ my $a = bit->new(my $va = 'a');
+ my $b = bit->new(my $vb = 'b');
+
+ $a &= $b;
+ is($a->val, 'a & b', "overloaded &= works");
+
+ my $c = bit->new(my $vc = 'c');
+
+ $b ^= $c;
+ is($b->val, 'b ^ c', "overloaded ^= works");
+
+ my $d = bit->new(my $vd = 'd');
+
+ $c |= $d;
+ is($c->val, 'c | d', "overloaded |= (by fallback) works");
+}
+
+{
+ # comparison operators with nomethod
+ my $warning = "";
+ my $method;
+
+ package nomethod_false;
+ use overload nomethod => sub { $method = 'nomethod'; 0 };
+
+ package nomethod_true;
+ use overload nomethod => sub { $method= 'nomethod'; 'true' };
+
+ package main;
+ local $^W = 1;
+ local $SIG{__WARN__} = sub { $warning = $_[0] };
+
+ my $f = bless [], 'nomethod_false';
+ ($warning, $method) = ("", "");
+ is($f eq 'whatever', 0, 'nomethod makes eq return 0');
+ is($method, 'nomethod');
+
+ my $t = bless [], 'nomethod_true';
+ ($warning, $method) = ("", "");
+ is($t eq 'whatever', 'true', 'nomethod makes eq return "true"');
+ is($method, 'nomethod');
+ is($warning, "", 'nomethod eq need not return number');
+
+ eval q{
+ package nomethod_false;
+ use overload cmp => sub { $method = 'cmp'; 0 };
+ };
+ $f = bless [], 'nomethod_false';
+ ($warning, $method) = ("", "");
+ ok($f eq 'whatever', 'eq falls back to cmp (nomethod not called)');
+ is($method, 'cmp');
+
+ eval q{
+ package nomethod_true;
+ use overload cmp => sub { $method = 'cmp'; 'true' };
+ };
+ $t = bless [], 'nomethod_true';
+ ($warning, $method) = ("", "");
+ ok($t eq 'whatever', 'eq falls back to cmp (nomethod not called)');
+ is($method, 'cmp');
+ like($warning, qr/isn't numeric/, 'cmp should return number');
+
+}
+
+{
+ # Subtle bug pre 5.10, as a side effect of the overloading flag being
+ # stored on the reference rather than the referent. Despite the fact that
+ # objects can only be accessed via references (even internally), the
+ # referent actually knows that it's blessed, not the references. So taking
+ # a new, unrelated, reference to it gives an object. However, the
+ # overloading-or-not flag was on the reference prior to 5.10, and taking
+ # a new reference didn't (use to) copy it.
+
+ package kayo;
+
+ use overload '""' => sub {${$_[0]}};
+
+ sub Pie {
+ return "$_[0], $_[1]";
+ }
+
+ package main;
+
+ my $class = 'kayo';
+ my $string = 'bam';
+ my $crunch_eth = bless \$string, $class;
+
+ is("$crunch_eth", $string);
+ is ($crunch_eth->Pie("Meat"), "$string, Meat");
+
+ my $wham_eth = \$string;
+
+ is("$wham_eth", $string,
+ 'This reference did not have overloading in 5.8.8 and earlier');
+ is ($crunch_eth->Pie("Apple"), "$string, Apple");
+
+ my $class = ref $wham_eth;
+ $class =~ s/=.*//;
+
+ # Bless it back into its own class!
+ bless $wham_eth, $class;
+
+ is("$wham_eth", $string);
+ is ($crunch_eth->Pie("Blackbird"), "$string, Blackbird");
+}
+
+{
+ package numify_int;
+ use overload "0+" => sub { $_[0][0] += 1; 42 };
+ package numify_self;
+ use overload "0+" => sub { $_[0][0]++; $_[0] };
+ package numify_other;
+ use overload "0+" => sub { $_[0][0]++; $_[0][1] = bless [], 'numify_int' };
+ package numify_by_fallback;
+ use overload fallback => 1;
+
+ package main;
+ my $o = bless [], 'numify_int';
+ is(int($o), 42, 'numifies to integer');
+ is($o->[0], 1, 'int() numifies only once');
+
+ my $aref = [];
+ my $num_val = int($aref);
+ my $r = bless $aref, 'numify_self';
+ is(int($r), $num_val, 'numifies to self');
+ is($r->[0], 1, 'int() numifies once when returning self');
+
+ my $s = bless [], 'numify_other';
+ is(int($s), 42, 'numifies to numification of other object');
+ is($s->[0], 1, 'int() numifies once when returning other object');
+ is($s->[1][0], 1, 'returned object numifies too');
+
+ my $m = bless $aref, 'numify_by_fallback';
+ is(int($m), $num_val, 'numifies to usual reference value');
+ is(abs($m), $num_val, 'numifies to usual reference value');
+ is(-$m, -$num_val, 'numifies to usual reference value');
+ is(0+$m, $num_val, 'numifies to usual reference value');
+ is($m+0, $num_val, 'numifies to usual reference value');
+ is($m+$m, 2*$num_val, 'numifies to usual reference value');
+ is(0-$m, -$num_val, 'numifies to usual reference value');
+ is(1*$m, $num_val, 'numifies to usual reference value');
+ is($m/1, $num_val, 'numifies to usual reference value');
+ is($m%100, $num_val%100, 'numifies to usual reference value');
+ is($m**1, $num_val, 'numifies to usual reference value');
+
+ is(abs($aref), $num_val, 'abs() of ref');
+ is(-$aref, -$num_val, 'negative of ref');
+ is(0+$aref, $num_val, 'ref addition');
+ is($aref+0, $num_val, 'ref addition');
+ is($aref+$aref, 2*$num_val, 'ref addition');
+ is(0-$aref, -$num_val, 'subtraction of ref');
+ is(1*$aref, $num_val, 'multiplicaton of ref');
+ is($aref/1, $num_val, 'division of ref');
+ is($aref%100, $num_val%100, 'modulo of ref');
+ is($aref**1, $num_val, 'exponentiation of ref');
+}
+
+# EOF
projects / p5sagit/p5-mst-13.2.git / blobdiff