| 1 | #!./perl -w |
| 2 | |
| 3 | chdir 't' if -d 't'; |
| 4 | @INC = '../lib'; |
| 5 | require './test.pl'; |
| 6 | use strict; |
| 7 | |
| 8 | $|=1; |
| 9 | |
| 10 | run_multiple_progs('', \*DATA); |
| 11 | |
| 12 | foreach my $code ('sub;', 'sub ($) ;', '{ $x = sub }', 'sub ($) && 1') { |
| 13 | eval $code; |
| 14 | like($@, qr/^Illegal declaration of anonymous subroutine at/, |
| 15 | "'$code' is illegal"); |
| 16 | } |
| 17 | |
| 18 | { |
| 19 | local $::TODO; |
| 20 | $::TODO = 'RT #17589 not completely resolved'; |
| 21 | # Here's a patch. It makes "sub;" and similar report an error immediately |
| 22 | # from the lexer. However the solution is not complete, it doesn't |
| 23 | # handle the case "sub ($) : lvalue;" (marked as a TODO test), because |
| 24 | # it's handled by the lexer in separate tokens, hence more difficult to |
| 25 | # work out. |
| 26 | my $code = 'sub ($) : lvalue;'; |
| 27 | eval $code; |
| 28 | like($@, qr/^Illegal declaration of anonymous subroutine at/, |
| 29 | "'$code' is illegal"); |
| 30 | } |
| 31 | |
| 32 | eval "sub #foo\n{print 1}"; |
| 33 | is($@, ''); |
| 34 | |
| 35 | done_testing(); |
| 36 | |
| 37 | __END__ |
| 38 | sub X { |
| 39 | my $n = "ok 1\n"; |
| 40 | sub { print $n }; |
| 41 | } |
| 42 | my $x = X(); |
| 43 | undef &X; |
| 44 | $x->(); |
| 45 | EXPECT |
| 46 | ok 1 |
| 47 | ######## |
| 48 | sub X { |
| 49 | my $n = "ok 1\n"; |
| 50 | sub { |
| 51 | my $dummy = $n; # eval can't close on $n without internal reference |
| 52 | eval 'print $n'; |
| 53 | die $@ if $@; |
| 54 | }; |
| 55 | } |
| 56 | my $x = X(); |
| 57 | undef &X; |
| 58 | $x->(); |
| 59 | EXPECT |
| 60 | ok 1 |
| 61 | ######## |
| 62 | sub X { |
| 63 | my $n = "ok 1\n"; |
| 64 | eval 'sub { print $n }'; |
| 65 | } |
| 66 | my $x = X(); |
| 67 | die $@ if $@; |
| 68 | undef &X; |
| 69 | $x->(); |
| 70 | EXPECT |
| 71 | ok 1 |
| 72 | ######## |
| 73 | sub X; |
| 74 | sub X { |
| 75 | my $n = "ok 1\n"; |
| 76 | eval 'sub Y { my $p = shift; $p->() }'; |
| 77 | die $@ if $@; |
| 78 | Y(sub { print $n }); |
| 79 | } |
| 80 | X(); |
| 81 | EXPECT |
| 82 | ok 1 |
| 83 | ######## |
| 84 | print sub { return "ok 1\n" } -> (); |
| 85 | EXPECT |
| 86 | ok 1 |
| 87 | ######## |
| 88 | # [perl #71154] undef &$code makes $code->() die with: Not a CODE reference |
| 89 | undef &{$x=sub{}}; |
| 90 | $x->(); |
| 91 | EXPECT |
| 92 | Undefined subroutine called at - line 3. |