Add docs for changes

[catagits/Catalyst-Runtime.git] / lib / Catalyst / Exception.pm

diff --git a/lib/Catalyst/Exception.pm b/lib/Catalyst/Exception.pm
index 2af5ed0..c8d5547 100644 (file)
--- a/lib/Catalyst/Exception.pm
+++ b/lib/Catalyst/Exception.pm
@@ -35,19 +35,43 @@ Throws a fatal exception.
 =cut
 
 has message => (
-    is  => 'ro',
-    isa => 'Str',
+    is      => 'ro',
+    isa     => 'Str',
+    default => sub { $! || '' },
 );
 
-sub throw {
-    my $class  = shift;
-    my %params = @_ == 1 ? ( error => $_[0] ) : @_;
+use overload
+    q{""}    => \&as_string,
+    fallback => 1;
+
+sub as_string {
+    my ($self) = @_;
+    return $self->message;
+}
+
+around BUILDARGS => sub {
+    my ($next, $class, @args) = @_;
+    if (@args == 1 && !ref $args[0]) {
+        @args = (message => $args[0]);
+    }
 
-    my $message = $params{message} || $params{error} || $! || '';
+    my $args = $class->$next(@args);
+    $args->{message} ||= $args->{error}
+        if exists $args->{error};
 
+    return $args;
+};
+
+sub throw {
+    my $class = shift;
+    my $error = $class->new(@_);
     local $Carp::CarpLevel = 1;
+    croak $error;
+}
 
-    croak($message);
+sub rethrow {
+    my ($self) = @_;
+    croak $self;
 }
 
 =head2 meta