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| -rw-r--r-- | pod/perlobj.pod | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/pod/perlobj.pod b/pod/perlobj.pod index b0592ffc6d..5b6adbabd4 100644 --- a/pod/perlobj.pod +++ b/pod/perlobj.pod @@ -313,6 +313,19 @@ The right side of the arrow typically is the method name, but a simple scalar variable containing either the method name or a subroutine reference can also be used. +If the right side of the arrow is a scalar containing a reference +to a subroutine, then this is equivalent to calling the referenced +subroutine directly with the class name or object on the left side +of the arrow as its first argument. No lookup is done and there is +no requirement that the subroutine be defined in any package related +to the class name or object on the left side of the arrow. + +For example, the following calls to $display are equivalent: + + my $display = sub { my $self = shift; ... }; + $fred->$display("Height", "Weight"); + $display->($fred, "Height", "Weight"); + =head2 Indirect Object Syntax X<indirect object syntax> X<invocation, indirect> X<indirect> |