-#!./perl
+#!./perl -w
-# $RCSfile: do.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:45 $
+require './test.pl';
+use strict;
+no warnings 'void';
sub foo1
{
- print $_[0];
+ ok($_[0], 'in foo1');
'value';
}
sub foo2
{
shift;
- print $_[0];
- $x = 'value';
+ ok($_[0], 'in foo2');
+ my $x = 'value';
$x;
}
-print "1..15\n";
+my $result;
+$_[0] = 0;
+{
+ no warnings 'deprecated';
+ $result = do foo1(1);
+}
-$_[0] = "not ok 1\n";
-$result = do foo1("ok 1\n");
-print "#2\t:$result: eq :value:\n";
-if ($result eq 'value') { print "ok 2\n"; } else { print "not ok 2\n"; }
-if ($_[0] eq "not ok 1\n") { print "ok 3\n"; } else { print "not ok 3\n"; }
+is($result, 'value', 'do &sub and proper @_ handling');
+cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
-$_[0] = "not ok 4\n";
-$result = do foo2("not ok 4\n","ok 4\n","not ok 4\n");
-print "#5\t:$result: eq :value:\n";
-if ($result eq 'value') { print "ok 5\n"; } else { print "not ok 5\n"; }
-if ($_[0] eq "not ok 4\n") { print "ok 6\n"; } else { print "not ok 6\n"; }
+$_[0] = 0;
+{
+ no warnings 'deprecated';
+ $result = do foo2(0,1,0);
+}
+is($result, 'value', 'do &sub and proper @_ handling');
+cmp_ok($_[0], '==', 0, 'do &sub and proper @_ handling');
-$result = do{print "ok 7\n"; 'value';};
-print "#8\t:$result: eq :value:\n";
-if ($result eq 'value') { print "ok 8\n"; } else { print "not ok 8\n"; }
+my $called;
+$result = do{ ++$called; 'value';};
+is($called, 1, 'do block called');
+is($result, 'value', 'do block returns correct value');
+my @blathered;
sub blather {
- print @_;
+ push @blathered, $_ foreach @_;
+}
+
+{
+ no warnings 'deprecated';
+ do blather("ayep","sho nuff");
+ is("@blathered", "ayep sho nuff", 'blathered called with list');
+}
+@blathered = ();
+
+my @x = ("jeepers", "okydoke");
+my @y = ("uhhuh", "yeppers");
+{
+ no warnings 'deprecated';
+ do blather(@x,"noofie",@y);
+ is("@blathered", "@x noofie @y", 'blathered called with arrays too');
+}
+
+unshift @INC, '.';
+
+my $file16 = tempfile();
+if (open my $do, '>', $file16) {
+ print $do "isnt(wantarray, undef, 'do in scalar context');\n";
+ print $do "cmp_ok(wantarray, '==', 0, 'do in scalar context');\n";
+ close $do or die "Could not close: $!";
+}
+
+my $a = do $file16; die $@ if $@;
+
+my $file17 = tempfile();
+if (open my $do, '>', $file17) {
+ print $do "isnt(wantarray, undef, 'do in list context');\n";
+ print $do "cmp_ok(wantarray, '!=', 0, 'do in list context');\n";
+ close $do or die "Could not close: $!";
+}
+
+my @a = do $file17; die $@ if $@;
+
+my $file18 = tempfile();
+if (open my $do, '>', $file18) {
+ print $do "is(wantarray, undef, 'do in void context');\n";
+ close $do or die "Could not close: $!";
+}
+
+do $file18; die $@ if $@;
+
+# bug ID 20010920.007
+eval qq{ do qq(a file that does not exist); };
+is($@, '', "do on a non-existing file, first try");
+
+eval qq{ do uc qq(a file that does not exist); };
+is($@, '', "do on a non-existing file, second try");
+
+# 6 must be interpreted as a file name here
+$! = 0;
+my $do6 = do 6;
+my $errno = $1;
+is($do6, undef, 'do 6 must be interpreted as a filename');
+isnt($!, 0, 'and should set $!');
+
+# [perl #19545]
+my ($u, @t);
+{
+ no warnings 'uninitialized';
+ push @t, ($u = (do {} . "This should be pushed."));
+}
+is($#t, 0, "empty do result value" );
+
+my $zok = '';
+my $owww = do { 1 if $zok };
+is($owww, '', 'last is unless');
+$owww = do { 2 unless not $zok };
+is($owww, 1, 'last is if not');
+
+$zok = 'swish';
+$owww = do { 3 unless $zok };
+is($owww, 'swish', 'last is unless');
+$owww = do { 4 if not $zok };
+is($owww, '', 'last is if not');
+
+# [perl #38809]
+@a = (7);
+my $x = sub { do { return do { @a } }; 2 }->();
+is($x, 1, 'return do { } receives caller scalar context');
+@x = sub { do { return do { @a } }; 2 }->();
+is("@x", "7", 'return do { } receives caller list context');
+
+@a = (7, 8);
+$x = sub { do { return do { 1; @a } }; 3 }->();
+is($x, 2, 'return do { ; } receives caller scalar context');
+@x = sub { do { return do { 1; @a } }; 3 }->();
+is("@x", "7 8", 'return do { ; } receives caller list context');
+
+my @b = (11 .. 15);
+$x = sub { do { return do { 1; @a, @b } }; 3 }->();
+is($x, 5, 'return do { ; , } receives caller scalar context');
+@x = sub { do { return do { 1; @a, @b } }; 3 }->();
+is("@x", "7 8 11 12 13 14 15", 'return do { ; , } receives caller list context');
+
+$x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
+is($x, 5, 'return do { ; }, do { ; } receives caller scalar context');
+@x = sub { do { return do { 1; @a }, do { 2; @b } }; 3 }->();
+is("@x", "7 8 11 12 13 14 15", 'return do { ; }, do { ; } receives caller list context');
+
+@a = (7, 8, 9);
+$x = sub { do { do { 1; return @a } }; 4 }->();
+is($x, 3, 'do { return } receives caller scalar context');
+@x = sub { do { do { 1; return @a } }; 4 }->();
+is("@x", "7 8 9", 'do { return } receives caller list context');
+
+@a = (7, 8, 9, 10);
+$x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
+is($x, 4, 'return do { do { ; } } receives caller scalar context');
+@x = sub { do { return do { 1; do { 2; @a } } }; 5 }->();
+is("@x", "7 8 9 10", 'return do { do { ; } } receives caller list context');
+
+# More tests about context propagation below return()
+@a = (11, 12);
+@b = (21, 22, 23);
+
+my $test_code = sub {
+ my ($x, $y) = @_;
+ if ($x) {
+ return $y ? do { my $z; @a } : do { my $z; @b };
+ } else {
+ return (
+ do { my $z; @a },
+ (do { my$z; @b }) x $y
+ );
+ }
+ 'xxx';
+};
+
+$x = $test_code->(1, 1);
+is($x, 2, 'return $y ? do { } : do { } - scalar context 1');
+$x = $test_code->(1, 0);
+is($x, 3, 'return $y ? do { } : do { } - scalar context 2');
+@x = $test_code->(1, 1);
+is("@x", '11 12', 'return $y ? do { } : do { } - list context 1');
+@x = $test_code->(1, 0);
+is("@x", '21 22 23', 'return $y ? do { } : do { } - list context 2');
+
+$x = $test_code->(0, 0);
+is($x, "", 'return (do { }, (do { }) x ...) - scalar context 1');
+$x = $test_code->(0, 1);
+is($x, 3, 'return (do { }, (do { }) x ...) - scalar context 2');
+@x = $test_code->(0, 0);
+is("@x", '11 12', 'return (do { }, (do { }) x ...) - list context 1');
+@x = $test_code->(0, 1);
+is("@x", '11 12 21 22 23', 'return (do { }, (do { }) x ...) - list context 2');
+
+$test_code = sub {
+ my ($x, $y) = @_;
+ if ($x) {
+ return do {
+ if ($y == 0) {
+ my $z;
+ @a;
+ } elsif ($y == 1) {
+ my $z;
+ @b;
+ } else {
+ my $z;
+ (wantarray ? reverse(@a) : '99');
+ }
+ };
+ }
+ 'xxx';
+};
+
+$x = $test_code->(1, 0);
+is($x, 2, 'return do { if () { } elsif () { } else { } } - scalar 1');
+$x = $test_code->(1, 1);
+is($x, 3, 'return do { if () { } elsif () { } else { } } - scalar 2');
+$x = $test_code->(1, 2);
+is($x, 99, 'return do { if () { } elsif () { } else { } } - scalar 3');
+@x = $test_code->(1, 0);
+is("@x", '11 12', 'return do { if () { } elsif () { } else { } } - list 1');
+@x = $test_code->(1, 1);
+is("@x", '21 22 23', 'return do { if () { } elsif () { } else { } } - list 2');
+@x = $test_code->(1, 2);
+is("@x", '12 11', 'return do { if () { } elsif () { } else { } } - list 3');
+
+# Do blocks created by constant folding
+# [perl #68108]
+$x = sub { if (1) { 20 } }->();
+is($x, 20, 'if (1) { $x } receives caller scalar context');
+
+@a = (21 .. 23);
+$x = sub { if (1) { @a } }->();
+is($x, 3, 'if (1) { @a } receives caller scalar context');
+@x = sub { if (1) { @a } }->();
+is("@x", "21 22 23", 'if (1) { @a } receives caller list context');
+
+$x = sub { if (1) { 0; 20 } }->();
+is($x, 20, 'if (1) { ...; $x } receives caller scalar context');
+
+@a = (24 .. 27);
+$x = sub { if (1) { 0; @a } }->();
+is($x, 4, 'if (1) { ...; @a } receives caller scalar context');
+@x = sub { if (1) { 0; @a } }->();
+is("@x", "24 25 26 27", 'if (1) { ...; @a } receives caller list context');
+
+$x = sub { if (1) { 0; 20 } else{} }->();
+is($x, 20, 'if (1) { ...; $x } else{} receives caller scalar context');
+
+@a = (24 .. 27);
+$x = sub { if (1) { 0; @a } else{} }->();
+is($x, 4, 'if (1) { ...; @a } else{} receives caller scalar context');
+@x = sub { if (1) { 0; @a } else{} }->();
+is("@x", "24 25 26 27", 'if (1) { ...; @a } else{} receives caller list context');
+
+$x = sub { if (0){} else { 0; 20 } }->();
+is($x, 20, 'if (0){} else { ...; $x } receives caller scalar context');
+
+@a = (24 .. 27);
+$x = sub { if (0){} else { 0; @a } }->();
+is($x, 4, 'if (0){} else { ...; @a } receives caller scalar context');
+@x = sub { if (0){} else { 0; @a } }->();
+is("@x", "24 25 26 27", 'if (0){} else { ...; @a } receives caller list context');
+
+# [rt.cpan.org #72767] do "string" should not propagate warning hints
+SKIP: {
+ skip_if_miniperl("no in-memory files under miniperl", 1);
+
+ my $code = '42; 1';
+ # Based on Eval::WithLexicals::_eval_do
+ local @INC = (sub {
+ if ($_[1] eq '/eval_do') {
+ open my $fh, '<', \$code;
+ $fh;
+ } else {
+ ();
+ }
+ }, @INC);
+ local $^W;
+ use warnings;
+ my $w;
+ local $SIG{__WARN__} = sub { warn shift; ++$w };
+ do '/eval_do' or die $@;
+ is($w, undef, 'do STRING does not propagate warning hints');
}
-do blather("ok 9\n","ok 10\n");
-@x = ("ok 11\n", "ok 12\n");
-@y = ("ok 14\n", "ok 15\n");
-do blather(@x,"ok 13\n",@y);
+done_testing();
https://perl5.git.perl.org / perl5.git / blobdiff