Rename ext/Compress/Zlib to ext/Compress-Zlib

[p5sagit/p5-mst-13.2.git] / lib / overload.t

diff --git a/lib/overload.t b/lib/overload.t
index 9b17923..1f9bc1b 100644 (file)
--- a/lib/overload.t
+++ b/lib/overload.t
@@ -47,7 +47,7 @@ sub numify { 0 + "${$_[0]}" } # Not needed, additional overhead
 package main;
 
 $| = 1;
-use Test::More tests => 535;
+use Test::More tests => 577;
 
 
 $a = new Oscalar "087";
@@ -361,6 +361,13 @@ is(($aII << 3), '_<<_087_<<_');
 }
 is($int, 9);
 is($out, 1024);
+is($int, 9);
+{
+  BEGIN { overload::constant 'integer' => sub {$int++; shift()+1}; }
+  eval q{$out = 42};
+}
+is($int, 10);
+is($out, 43);
 
 $foo = 'foo';
 $foo1 = 'f\'o\\o';
@@ -1125,7 +1132,7 @@ like ($@, qr/zap/);
     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\(0x[0-9a-f]+\)$/);
@@ -1225,6 +1232,46 @@ foreach my $op (qw(<=> == != < <= > >=)) {
     ok(!$b, "Expect overloaded boolean");
     ok(!$a, "Expect overloaded boolean");
 }
+
+{
+    package Flrbbbbb;
+    use overload
+       bool     => sub { shift->{truth} eq 'yes' },
+       '0+'     => sub { shift->{truth} eq 'yes' ? '1' : '0' },
+       '!'      => sub { shift->{truth} eq 'no' },
+       fallback => 1;
+
+    sub new { my $class = shift; bless { truth => shift }, $class }
+
+    package main;
+
+    my $yes = Flrbbbbb->new('yes');
+    my $x;
+    $x = 1 if $yes;                    is($x, 1);
+    $x = 2 unless $yes;                        is($x, 1);
+    $x = 3 if !$yes;                   is($x, 1);
+    $x = 4 unless !$yes;               is($x, 4);
+
+    my $no = Flrbbbbb->new('no');
+    $x = 0;
+    $x = 1 if $no;                     is($x, 0);
+    $x = 2 unless $no;                 is($x, 2);
+    $x = 3 if !$no;                    is($x, 3);
+    $x = 4 unless !$no;                        is($x, 3);
+
+    $x = 0;
+    $x = 1 if !$no && $yes;            is($x, 1);
+    $x = 2 unless !$no && $yes;                is($x, 1);
+    $x = 3 if $no || !$yes;            is($x, 1);
+    $x = 4 unless $no || !$yes;                is($x, 4);
+
+    $x = 0;
+    $x = 1 if !$no || !$yes;           is($x, 1);
+    $x = 2 unless !$no || !$yes;       is($x, 1);
+    $x = 3 if !$no && !$yes;           is($x, 1);
+    $x = 4 unless !$no && !$yes;       is($x, 4);
+}
+
 {
     use Scalar::Util 'weaken';
 
@@ -1383,6 +1430,8 @@ foreach my $op (qw(<=> == != < <= > >=)) {
     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';
@@ -1390,7 +1439,7 @@ foreach my $op (qw(<=> == != < <= > >=)) {
     is($o->[0], 1, 'int() numifies only once');
 
     my $aref = [];
-    my $num_val = 0 + $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');
@@ -1399,4 +1448,46 @@ foreach my $op (qw(<=> == != < <= > >=)) {
     is(int($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, $num_val, 'exponentiation of ref');
+}
+
+{
+    package CopyConstructorFallback;
+    use overload
+        '++'        => sub { "$_[0]"; $_[0] },
+        fallback    => 1;
+    sub new { bless {} => shift }
+
+    package main;
+
+    my $o = CopyConstructorFallback->new;
+    my $x = $o++; # would segfault
+    my $y = ++$o;
+    is($x, $o, "copy constructor falls back to assignment (postinc)");
+    is($y, $o, "copy constructor falls back to assignment (preinc)");
 }
+
+# EOF