diff options
Diffstat (limited to 'pod/perlfunc.pod')
| -rw-r--r-- | pod/perlfunc.pod | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod index 4562b2c905..9428a4d67a 100644 --- a/pod/perlfunc.pod +++ b/pod/perlfunc.pod @@ -2929,7 +2929,12 @@ The author of Perl has never felt the need to use this form of C<goto> does not offer named loops combined with loop control. Perl does, and this replaces most structured uses of C<goto> in other languages.) -The C<goto-EXPR> form expects a label name, whose scope will be resolved +The C<goto-EXPR> form expects to evaluate C<EXPR> to a code reference or +a label name. If it evaluates to a code reference, it will be handled +like C<goto-&NAME>, below. This is especially useful for implementing +tail recursion via C<goto __SUB__>. + +If the expression evaluates to a label name, its scope will be resolved dynamically. This allows for computed C<goto>s per FORTRAN, but isn't necessarily recommended if you're optimizing for maintainability: |