From: Vincent Pit Date: Sun, 4 Jan 2009 15:53:28 +0000 (+0100) Subject: This is 0.03 X-Git-Tag: v0.03^0 X-Git-Url: http://git.vpit.fr/?a=commitdiff_plain;h=c8549c2d49ee305498c19318c51dc6540dba8b3f;p=perl%2Fmodules%2FScope-Upper.git This is 0.03 --- diff --git a/Changes b/Changes index e872d83..cfa7084 100644 --- a/Changes +++ b/Changes @@ -1,5 +1,11 @@ Revision history for Scope-Upper +0.03 2009-01-04 15:55 UTC + + Add : localize_delete(), that localize array/hash elements in upper + scopes. + + Fix : Segfault when localizing array elements with an invalid negative + index. + 0.02 2008-12-28 18:40 UTC + Doc : Clarifications and improvements. + Fix : Missing compatibility macros. diff --git a/META.yml b/META.yml index 12989c5..79953f5 100644 --- a/META.yml +++ b/META.yml @@ -1,6 +1,6 @@ --- #YAML:1.0 name: Scope-Upper -version: 0.02 +version: 0.03 abstract: Act on upper scopes. author: - Vincent Pit diff --git a/README b/README index 5e2fb7e..499ba67 100644 --- a/README +++ b/README @@ -2,12 +2,12 @@ NAME Scope::Upper - Act on upper scopes. VERSION - Version 0.02 + Version 0.03 SYNOPSIS package X; - use Scope::Upper qw/reap localize localize_elem/; + use Scope::Upper qw/reap localize localize_elem localize_delete/; sub desc { shift->{desc} } @@ -28,13 +28,15 @@ SYNOPSIS my $x = do { no strict 'refs'; ${$pkg.'::x'} }; # Get the $x in the scope CORE::warn($x->desc . ': ' . join('', @_)); } => 1; + + localize_delete '@ARGV', $#ARGV => 1; # delete last @ARGV element } package Y; { X::set_tag('pie'); - # $x is now a X object + # $x is now a X object, and @ARGV has one element less warn 'what'; # warns "pie: what at ..." ... } # "pie: done" is printed @@ -42,7 +44,8 @@ SYNOPSIS DESCRIPTION This module lets you defer actions that will take place when the control flow returns into an upper scope. Currently, you can hook an upper scope - end, or localize variables and array/hash values in higher contexts. + end, or localize variables, array/hash values or deletions of elements + in higher contexts. FUNCTIONS "reap $callback, $level" @@ -84,13 +87,28 @@ FUNCTIONS is ; otherwise it's inferred from the sigil. $key is either an array index or a hash key, depending of which kind of variable you localize. + "localize_delete $what, $key, $level" + Similiar to "localize", but for deleting variables or array/hash + elements. $what can be: + + * A glob, in which case $key is ignored and the call is equivalent to + "local *x". + + * A string beginning with '@' or '%', for which the call is equivalent + to respectiveley "local $a[$key]; delete $a[$key]" and "local + $h{$key}; delete $h{$key}". + + * A string beginning with '&', which more or less does "undef &func" + in the upper scope. It's actually more powerful, as &func won't even + "exists" anymore. $key is ignored. + "TOPLEVEL" Returns the level that currently represents the highest scope. EXPORT - The functions "reap", "localize", "localize_elem" and "TOPLEVEL" are - only exported on request, either individually or by the tags ':funcs' - and ':all'. + The functions "reap", "localize", "localize_elem", "localize_delete" and + "TOPLEVEL" are only exported on request, either individually or by the + tags ':funcs' and ':all'. CAVEATS Be careful that local variables are restored in the reverse order in @@ -149,7 +167,7 @@ ACKNOWLEDGEMENTS Inspired by Ricardo Signes. COPYRIGHT & LICENSE - Copyright 2008 Vincent Pit, all rights reserved. + Copyright 2008-2009 Vincent Pit, all rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. diff --git a/lib/Scope/Upper.pm b/lib/Scope/Upper.pm index e5f22c9..345176a 100644 --- a/lib/Scope/Upper.pm +++ b/lib/Scope/Upper.pm @@ -9,13 +9,13 @@ Scope::Upper - Act on upper scopes. =head1 VERSION -Version 0.02 +Version 0.03 =cut our $VERSION; BEGIN { - $VERSION = '0.02'; + $VERSION = '0.03'; } =head1 SYNOPSIS