Author: larry
Date: Tue May 29 12:03:39 2007
New Revision: 14406
Modified:
doc/trunk/design/syn/S12.pod
Log:
Allow closures as indirect methods as suggested by blazer++
Modified: doc/trunk/design/syn/S12.pod
==============================================================================
--- doc/trunk/design/syn/S12.pod (original)
+++ doc/trunk/design/syn/S12.pod Tue May 29 12:03:39 2007
@@ -12,9 +12,9 @@
Maintainer: Larry Wall <[EMAIL PROTECTED]>
Date: 27 Oct 2004
- Last Modified: 21 May 2007
+ Last Modified: 29 May 2007
Number: 12
- Version: 52
+ Version: 53
=head1 Overview
@@ -222,6 +222,18 @@
$obj.$methodname(1,2,3)
+The variable may contain either the name of a method or a closure
+object. In the latter case the closure is called with the object
+as its first argument, so that a closure may be used to abstract a
+"navigational" path through a data structure without specifying the
+root of the path till later.
+
+ $locator = -> $root, $x, $y { $root.<foo>[$x]<bar>{$y}[3] }
+ $obj.$locator(42,"baz") # $obj<foo>[42]<bar><baz>[3]
+
+ $locator = { .<here> }
+ $obj.$locator # $obj<here>
+
The method name may also be quoted with either single or double quotes:
$obj."$methodname"(1,2,3) # same as previous
