6 use Test::More tests => (13 + 5 + 4) * 2 + 1 + 3 + 11;
8 use Scope::Upper qw<uplevel HERE UP>;
13 my ($code, $exp_in, $desc) = @_;
15 local $Test::Builder::Level = ($Test::Builder::Level || 0) + 1;
17 my $exp_out = [ 'A', map("X$_", @$exp_in), 'Z' ];
21 @ret_in = &uplevel($code, HERE);
22 is_deeply \@ret_in, $exp_in, "$desc: inside";
26 is_deeply \@ret_out, $exp_out, "$desc: outside";
31 check { return } [ ], 'empty explicit return';
33 check { () } [ ], 'empty implicit return';
35 check { return 1 } [ 1 ], 'one const scalar explicit return';
37 check { 2 } [ 2 ], 'one const scalar implicit return';
41 check { return $x } [ 3 ], 'one lexical scalar explicit return';
46 check { $x } [ 4 ], 'one lexical scalar implicit return';
51 check { return $x } [ 3 ], 'one global scalar explicit return';
56 check { $x } [ 4 ], 'one global scalar implicit return';
59 check { return 1 .. 5 } [ 1 .. 5 ], 'five const scalar explicit return';
61 check { 6 .. 10 } [ 6 .. 10 ], 'five const scalar implicit return';
63 check { 'a' .. 'z' } [ 'a' .. 'z' ], '26 const scalar implicit return';
65 check { [ qw<A B C> ] } [ [ qw<A B C> ] ],'one array reference implicit return';
68 my ($ret) = check { $cb } [ $cb ], 'one anonymous sub implicit return';
69 is $ret->(), $cb->(), 'anonymous sub returned by uplevel still works';
71 for my $run (1 .. 3) {
78 is $cb->(), 124, "near closure returned by uplevel still works";
84 my $desc = 'one scalar explict return between two others, without args';
86 my @ret = (1, uplevel(sub { return 2 }), 3);
87 is_deeply \@ret, [ 1 .. 3 ], "$desc: inside";
90 is_deeply \@ret, [ qw<X Y> ], "$desc: outside";
94 my $desc = 'one scalar implict return between two others, without args';
96 my @ret = (4, uplevel(sub { 5 }), 6);
97 is_deeply \@ret, [ 4 .. 6 ], "$desc: inside";
100 is_deeply \@ret, [ qw<X Y> ], "$desc: outside";
104 my $desc = 'one scalar explict return between two others, with args';
106 my @ret = (1, uplevel(sub { return 2 }, 7 .. 9, HERE), 3);
107 is_deeply \@ret, [ 1 .. 3 ], "$desc: inside";
110 is_deeply \@ret, [ qw<X Y> ], "$desc: outside";
114 my $desc = 'one scalar implict return between two others, with args';
116 my @ret = (4, uplevel(sub { 5 }, 7 .. 9, HERE), 6);
117 is_deeply \@ret, [ 4 .. 6 ], "$desc: inside";
120 is_deeply \@ret, [ qw<X Y> ], "$desc: outside";
124 my $desc = 'complex chain of calls';
126 sub one { "<", two("{", @_, "}"), ">" }
127 sub two { "(", three("[", @_, "]"), ")" }
128 sub three { (uplevel { "A", "B", four(@_) } @_, UP), "Z" }
130 is_deeply \@_, [ qw|[ { * } ]| ], "$desc: inside";
135 is_deeply \@ret, [ qw|< ( A B [ { * } ] Z ) >| ], "$desc: outside";
141 package Scope::Upper::TestMagic;
144 my ($class, $cb) = @_;
145 bless { cb => $cb }, $class;
148 sub FETCH { $_[0]->{cb}->(@_) }
150 sub STORE { die "Read only magic scalar" }
154 tie my $mg, 'Scope::Upper::TestMagic', sub { $$ };
155 check { return $mg } [ $$ ], 'one magical scalar explicit return';
156 check { $mg } [ $$ ], 'one magical scalar implicit return';
158 tie my $mg2, 'Scope::Upper::TestMagic', sub { $mg };
159 check { return $mg2 } [ $$ ], 'one double magical scalar explicit return';
160 check { $mg2 } [ $$ ], 'one double magical scalar implicit return';
166 package Scope::Upper::TestTimelyDestruction;
169 my ($class, $flag) = @_;
171 bless { flag => $flag }, $class;
183 my $z = Scope::Upper::TestTimelyDestruction->new(\$destroyed);
184 is $destroyed, 0, 'destruction 1: not yet 1';
186 is $destroyed, 0, 'destruction 1: not yet 2';
188 }, do { is $destroyed, 0, 'destruction 1: not yet 3'; () }
190 is $destroyed, 1, 'destruction 1: destroyed 1';
192 is $destroyed, 1, 'destruction 1: destroyed 2';
196 skip 'This fails even with a plain subroutine call on 5.8.x' => 6
201 my $z = Scope::Upper::TestTimelyDestruction->new(\$destroyed);
202 is $destroyed, 0, 'destruction 2: not yet 1';
204 is $destroyed, 0, 'destruction 2: not yet 2';
206 is $destroyed, 0, 'destruction 2: not yet 3';
208 }), do { is $destroyed, 0, 'destruction 2: not yet 4'; () }
210 is $destroyed, 0, 'destruction 2: not yet 5';
212 is $destroyed, 1, 'destruction 2: destroyed';