sub _dispatch {
my ($self, $env, @match) = @_;
while (my $try = shift @match) {
+
+ return $try if ref($try) eq 'ARRAY';
if (ref($try) eq 'HASH') {
$env = { %$env, %$try };
next;
- } elsif (ref($try) eq 'ARRAY') {
- return $try;
}
+
my @result = $self->_to_try($try, \@match)->($env, @match);
next unless @result and defined($result[0]);
- if (ref($result[0]) eq 'ARRAY') {
- if (@{$result[0]} == 1 and ref($result[0][0]) eq 'CODE') {
- return $result[0][0];
- }
- return $result[0];
- } elsif (blessed($result[0]) && $result[0]->isa('Plack::Middleware')) {
- die "Multiple results but first one is a middleware ($result[0])"
- if @result > 1;
- # middleware needs to uplevel exactly once to wrap the rest of the
- # level it was created for - next elsif unwraps it
- return { MAGIC_MIDDLEWARE_KEY, $result[0] };
- my $mw = $result[0];
- } elsif (
- ref($result[0]) eq 'HASH'
- and my $mw = $result[0]->{+MAGIC_MIDDLEWARE_KEY}
- ) {
- $mw->app(sub { $self->_dispatch($_[0], @match) });
- return $mw->to_app->($env);
- } elsif (blessed($result[0]) && !$result[0]->can('to_app')) {
- return $result[0];
- } else {
- # make a copy so we don't screw with it assigning further up
- my $env = $env;
- unshift @match, sub { $self->_dispatch($env, @result) };
- }
+
+ my $first = $result[0];
+
+ return $self->_unpack_array_match( $first )
+ if ref($first) eq 'ARRAY';
+
+ return $self->_prepare_middleware( $first, \@result )
+ if blessed($first) && $first->isa('Plack::Middleware');
+
+ return $self->_unwrap_middleware( $first, \@match, $env )
+ if ref($first) eq 'HASH' and $first->{+MAGIC_MIDDLEWARE_KEY};
+
+ return $first
+ if blessed($first) && !$first->can('to_app');
+
+ # make a copy so we don't screw with it assigning further up
+ my $env = $env;
+ unshift @match, sub { $self->_dispatch($env, @result) };
}
+
return;
}
+sub _unpack_array_match {
+ my ( $self, $match ) = @_;
+ return $match->[0] if @{$match} == 1 and ref($match->[0]) eq 'CODE';
+ return $match;
+}
+
+sub _prepare_middleware {
+ my ( $self, $match, $results ) = @_;
+ die "Multiple results but first one is a middleware ($match)"
+ if @{$results} > 1;
+ # middleware needs to uplevel exactly once to wrap the rest of the
+ # level it was created for - next elsif unwraps it
+ return { MAGIC_MIDDLEWARE_KEY, $match };
+}
+
+sub _unwrap_middleware {
+ my ( $self, $first, $match, $env ) = @_;
+
+ my $mw = $first->{+MAGIC_MIDDLEWARE_KEY};
+
+ $mw->app(sub { $self->_dispatch($_[0], @{$match}) });
+
+ return $mw->to_app->($env);
+}
+
sub _to_try {
my ($self, $try, $more) = @_;
if (ref($try) eq 'CODE') {