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

diff --git a/lib/overload.t b/lib/overload.t
index cf49eac..0798a91 100644 (file)
--- a/lib/overload.t
+++ b/lib/overload.t
@@ -41,7 +41,7 @@ sub numify { 0 + "${$_[0]}" } # Not needed, additional overhead
 
 package main;
 
-$test = 0;
+our $test = 0;
 $| = 1;
 print "1..",&last,"\n";
 
@@ -1064,7 +1064,26 @@ package main;
 
 
 my $utfvar = new utf8_o 200.2.1;
-test("$utfvar" eq 200.2.1); # 223
+test("$utfvar" eq 200.2.1); # 223 - stringify
+test("a$utfvar" eq "a".200.2.1); # 224 - overload via sv_2pv_flags
+
+# 225..227 -- more %{} tests.  Hangs in 5.6.0, okay in later releases.
+# Basically this example implements strong encapsulation: if Hderef::import()
+# were to eval the overload code in the caller's namespace, the privatisation
+# would be quite transparent.
+package Hderef;
+use overload '%{}' => sub { (caller(0))[0] eq 'Foo' ? $_[0] : die "zap" };
+package Foo;
+@Foo::ISA = 'Hderef';
+sub new { bless {}, shift }
+sub xet { @_ == 2 ? $_[0]->{$_[1]} :
+         @_ == 3 ? ($_[0]->{$_[1]} = $_[2]) : undef }
+package main;
+my $a = Foo->new;
+$a->xet('b', 42);
+print $a->xet('b') == 42 ? "ok 225\n" : "not ok 225\n";
+print defined eval { $a->{b} } ? "not ok 226\n" : "ok 226\n";
+print $@ =~ /zap/ ? "ok 227\n" : "not ok 227\n";
 
 # Last test is:
-sub last {223}
+sub last {227}