X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FVariable%2FMagic.pm;h=fd2c0ef6b3b73e7b3f3e186626a9b1fe9c0f211a;hb=800e9f939f181af9766c3a3024ac9f57b9799510;hp=141d966ab9f90ebe443deee6ba6dab8be1c3f2f5;hpb=cc99f7f4711b525f7d3b7c4480528b480eac0a48;p=perl%2Fmodules%2FVariable-Magic.git

diff --git a/lib/Variable/Magic.pm b/lib/Variable/Magic.pm
index 141d966..fd2c0ef 100644
--- a/lib/Variable/Magic.pm
+++ b/lib/Variable/Magic.pm
@@ -25,8 +25,10 @@ BEGIN {
     use Variable::Magic qw<wizard cast VMG_OP_INFO_NAME>;
 
     { # A variable tracer
-     my $wiz = wizard set  => sub { print "now set to ${$_[0]}!\n" },
-                      free => sub { print "destroyed!\n" };
+     my $wiz = wizard(
+      set  => sub { print "now set to ${$_[0]}!\n" },
+      free => sub { print "destroyed!\n" },
+     );
 
      my $a = 1;
      cast $a, $wiz;
@@ -34,15 +36,17 @@ BEGIN {
     }               # "destroyed!"
 
     { # A hash with a default value
-     my $wiz = wizard data     => sub { $_[1] },
-                      fetch    => sub { $_[2] = $_[1] unless exists $_[0]->{$_[2]}; () },
-                      store    => sub { print "key $_[2] stored in $_[-1]\n" },
-                      copy_key => 1,
-                      op_info  => VMG_OP_INFO_NAME;
+     my $wiz = wizard(
+      data     => sub { $_[1] },
+      fetch    => sub { $_[2] = $_[1] unless exists $_[0]->{$_[2]}; () },
+      store    => sub { print "key $_[2] stored in $_[-1]\n" },
+      copy_key => 1,
+      op_info  => VMG_OP_INFO_NAME,
+     );
 
      my %h = (_default => 0, apple => 2);
      cast %h, $wiz, '_default';
-     print $h{banana}, "\n"; # "0", because the 'banana' key doesn't exist in %h
+     print $h{banana}, "\n"; # "0" (there is no 'banana' key in %h)
      $h{pear} = 1;           # "key pear stored in helem"
     }
 
@@ -206,20 +210,24 @@ BEGIN {
 
 =head2 C<wizard>
 
-    wizard data     => sub { ... },
-           get      => sub { my ($ref, $data [, $op]) = @_; ... },
-           set      => sub { my ($ref, $data [, $op]) = @_; ... },
-           len      => sub { my ($ref, $data, $len [, $op]) = @_; ... ; return $newlen; },
-           clear    => sub { my ($ref, $data [, $op]) = @_; ... },
-           free     => sub { my ($ref, $data [, $op]) = @_, ... },
-           copy     => sub { my ($ref, $data, $key, $elt [, $op]) = @_; ... },
-           local    => sub { my ($ref, $data [, $op]) = @_; ... },
-           fetch    => sub { my ($ref, $data, $key [, $op]) = @_; ... },
-           store    => sub { my ($ref, $data, $key [, $op]) = @_; ... },
-           exists   => sub { my ($ref, $data, $key [, $op]) = @_; ... },
-           delete   => sub { my ($ref, $data, $key [, $op]) = @_; ... },
-           copy_key => $bool,
-           op_info  => [ 0 | VMG_OP_INFO_NAME | VMG_OP_INFO_OBJECT ]
+    wizard(
+     data     => sub { ... },
+     get      => sub { my ($ref, $data [, $op]) = @_; ... },
+     set      => sub { my ($ref, $data [, $op]) = @_; ... },
+     len      => sub {
+      my ($ref, $data, $len [, $op]) = @_; ... ; return $newlen
+     },
+     clear    => sub { my ($ref, $data [, $op]) = @_; ... },
+     free     => sub { my ($ref, $data [, $op]) = @_, ... },
+     copy     => sub { my ($ref, $data, $key, $elt [, $op]) = @_; ... },
+     local    => sub { my ($ref, $data [, $op]) = @_; ... },
+     fetch    => sub { my ($ref, $data, $key [, $op]) = @_; ... },
+     store    => sub { my ($ref, $data, $key [, $op]) = @_; ... },
+     exists   => sub { my ($ref, $data, $key [, $op]) = @_; ... },
+     delete   => sub { my ($ref, $data, $key [, $op]) = @_; ... },
+     copy_key => $bool,
+     op_info  => [ 0 | VMG_OP_INFO_NAME | VMG_OP_INFO_OBJECT ],
+    )
 
 This function creates a 'wizard', an opaque type that holds the magic information.
 It takes a list of keys / values as argument, whose keys can be :
@@ -287,9 +295,11 @@ Note that C<free> callbacks are I<never> called during global destruction, as th
 Here's a simple usage example :
 
     # A simple scalar tracer
-    my $wiz = wizard get  => sub { print STDERR "got ${$_[0]}\n" },
-                     set  => sub { print STDERR "set to ${$_[0]}\n" },
-                     free => sub { print STDERR "${$_[0]} was deleted\n" }
+    my $wiz = wizard(
+     get  => sub { print STDERR "got ${$_[0]}\n" },
+     set  => sub { print STDERR "set to ${$_[0]}\n" },
+     free => sub { print STDERR "${$_[0]} was deleted\n" },
+    );
 
 =cut
 
@@ -301,7 +311,7 @@ sub wizard {
 
  my %opts = @_;
 
- my @keys = qw<data op_info get set len clear free>;
+ my @keys = qw<op_info data get set len clear free>;
  push @keys, 'copy'  if MGf_COPY;
  push @keys, 'dup'   if MGf_DUP;
  push @keys, 'local' if MGf_LOCAL;
@@ -450,7 +460,7 @@ It is similar to using inside-out objects, but without the drawback of having to
       unless (defined $data) {
        $data = \(my $slot);
        &cast($var, $wiz, $slot)
-                        or die "Couldn't cast UserData magic onto the variable";
+                 or die "Couldn't cast UserData magic onto the variable";
       }
       $$data;
      }