Add Exception::Interface and Exception::Basic. Make ::Base, ::Go and ::Detach use...

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

diff --git a/lib/Catalyst/Exception/Basic.pm b/lib/Catalyst/Exception/Basic.pm
new file mode 100644 (file)
index 0000000..7d963e8
--- /dev/null
+++ b/lib/Catalyst/Exception/Basic.pm
@@ -0,0 +1,49 @@
+package Catalyst::Exception::Basic;
+
+use Moose::Role;
+use Carp;
+use namespace::clean -except => 'meta';
+
+with 'Catalyst::Exception::Interface';
+
+has message => (
+    is      => 'ro',
+    isa     => 'Str',
+    default => sub { $! || '' },
+);
+
+use overload
+    q{""}    => \&as_string,
+    fallback => 1;
+
+sub as_string {
+    my ($self) = @_;
+    return $self->message;
+}
+
+around BUILDARGS => sub {
+    my ($next, $class, @args) = @_;
+    if (@args == 1 && !ref $args[0]) {
+        @args = (message => $args[0]);
+    }
+
+    my $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 $error;
+}
+
+sub rethrow {
+    my ($self) = @_;
+    croak $self;
+}
+
+1;