Skip to content

Fatalization of goto LABEL construct #23782

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: blead
Choose a base branch
from
+294 −359
Open

Fatalization of goto LABEL construct #23782

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions pod/perldiag.pod
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7923,6 +7923,10 @@ For speed and efficiency reasons, Perl internally does not do full
reference-counting of iterated items, hence deleting such an item in the
middle of an iteration causes Perl to see a freed value.

=item Use of "goto" to jump into a construct is no longer permitted

(F) More TO COME.

=item Use of /g modifier is meaningless in split

(W regexp) You used the /g modifier on the pattern for a C<split>
Expand Down
5 changes: 1 addition & 4 deletions pp_ctl.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3685,10 +3685,7 @@ PP(pp_goto)
}

if (into_construct)
deprecate_fatal_in(WARN_DEPRECATED__GOTO_CONSTRUCT,
"5.42",
"Use of \"goto\" to jump into a construct");

croak("Use of \"goto\" to jump into a construct is no longer permitted");

if (do_dump) {
#ifdef VMS
Expand Down
37 changes: 1 addition & 36 deletions t/comp/package_block.t
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
#!./perl

print "1..7\n";
print "1..5\n";

$main::result = "";
eval q{
Expand Down Expand Up @@ -55,38 +55,3 @@ eval q{
$main::result .= "f(".__LINE__.")";
};
print $main::result eq "a(2)b(4)c(6)d(8)e(10)f(12)" ? "ok 5\n" : "not ok 5\n";

$main::result = "";
$main::warning = "";
$SIG{__WARN__} = sub { $main::warning .= $_[0]; };
eval q{
$main::result .= "a(".__PACKAGE__."/".eval("__PACKAGE__").")";
goto l0;
$main::result .= "b(".__PACKAGE__."/".eval("__PACKAGE__").")";
package Foo {
$main::result .= "c(".__PACKAGE__."/".eval("__PACKAGE__").")";
l0:
$main::result .= "d(".__PACKAGE__."/".eval("__PACKAGE__").")";
goto l1;
$main::result .= "e(".__PACKAGE__."/".eval("__PACKAGE__").")";
}
$main::result .= "f(".__PACKAGE__."/".eval("__PACKAGE__").")";
l1:
$main::result .= "g(".__PACKAGE__."/".eval("__PACKAGE__").")";
goto l2;
$main::result .= "h(".__PACKAGE__."/".eval("__PACKAGE__").")";
package Bar {
l2:
$main::result .= "i(".__PACKAGE__."/".eval("__PACKAGE__").")";
}
$main::result .= "j(".__PACKAGE__."/".eval("__PACKAGE__").")";
};
print $main::result eq
"a(main/main)d(Foo/Foo)g(main/main)i(Bar/Bar)j(main/main)" ?
"ok 6\n" : "not ok 6\n";
print $main::warning =~ /\A
Use\ of\ "goto"\ [^\n]*\ line\ 3\.\n
Use\ of\ "goto"\ [^\n]*\ line\ 15\.\n
\z/x ? "ok 7\n" : "not ok 7\n";

1;
Loading
Loading