with 'Web::Dispatch::ToApp';
-has app => (is => 'ro', required => 1);
+has dispatch_app => (
+ is => 'lazy', builder => sub { shift->dispatch_object->to_app }
+);
+has dispatch_object => (is => 'ro', required => 0, weak_ref => 1);
has parser_class => (
is => 'ro', default => quote_sub q{ 'Web::Dispatch::Parser' }
);
has node_class => (
is => 'ro', default => quote_sub q{ 'Web::Dispatch::Node' }
);
-has node_args => (is => 'ro', default => quote_sub q{ {} });
has _parser => (is => 'lazy');
+after BUILDARGS => sub {
+ my ( $self, %args ) = @_;
+ die "Either dispatch_app or dispatch_object need to be supplied."
+ if !$args{dispatch_app} and !$args{dispatch_object}
+};
+
sub _build__parser {
my ($self) = @_;
$self->parser_class->new;
sub call {
my ($self, $env) = @_;
- $self->_dispatch($env, $self->app);
+ my $res = $self->_dispatch($env, $self->dispatch_app);
+ return $res->[0] if ref($res) eq 'ARRAY' and @{$res} == 1 and ref($res->[0]) eq 'CODE';
+ return $res;
}
sub _dispatch {
return $try if ref($try) eq 'ARRAY';
if (ref($try) eq 'HASH') {
- $env = { %$env, %$try };
+ $env = { 'Web::Dispatch.original_env' => $env, %$env, %$try };
next;
}
my $first = $result[0];
- if (my $res = $self->_have_result( $first, \@result, \@match, $env )) {
+ if (my $res = $self->_have_result($first, \@result, \@match, $env)) {
return $res;
}
}
sub _have_result {
- my ( $self, $first, $result, $match, $env ) = @_;
+ my ($self, $first, $result, $match, $env) = @_;
- if ( ref($first) eq 'ARRAY' ) {
- return $self->_unpack_array_match( $first );
+ if (ref($first) eq 'ARRAY') {
+ return $first;
}
- elsif ( blessed($first) && $first->isa('Plack::Middleware') ) {
- return $self->_uplevel_middleware( $first, $result );
+ elsif (blessed($first) && $first->isa('Plack::Middleware')) {
+ return $self->_uplevel_middleware($first, $result);
}
- elsif ( ref($first) eq 'HASH' and $first->{+MAGIC_MIDDLEWARE_KEY} ) {
- return $self->_redispatch_with_middleware( $first, $match, $env );
+ elsif (ref($first) eq 'HASH' and $first->{+MAGIC_MIDDLEWARE_KEY}) {
+ return $self->_redispatch_with_middleware($first, $match, $env);
}
- elsif ( blessed($first) && !$first->can('to_app') ) {
+ elsif (
+ blessed($first) &&
+ not($first->can('to_app')) &&
+ not($first->isa('Web::Dispatch::Matcher'))
+ ) {
return $first;
}
-
return;
}
-sub _unpack_array_match {
- my ( $self, $match ) = @_;
- return $match->[0] if @{$match} == 1 and ref($match->[0]) eq 'CODE';
- return $match;
-}
-
sub _uplevel_middleware {
- my ( $self, $match, $results ) = @_;
+ my ($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
}
sub _redispatch_with_middleware {
- my ( $self, $first, $match, $env ) = @_;
+ my ($self, $first, $match, $env) = @_;
my $mw = $first->{+MAGIC_MIDDLEWARE_KEY};
sub _to_try {
my ($self, $try, $more) = @_;
+
+ # sub (<spec>) {} becomes a dispatcher
+ # sub {} is a PSGI app and can be returned as is
+ # '<spec>' => sub {} becomes a dispatcher
+ # $obj isa WD:Predicates::Matcher => sub { ... } - become a dispatcher
+ # $obj w/to_app method is a Plack::App-like thing - call it to get a PSGI app
+ #
+
if (ref($try) eq 'CODE') {
if (defined(my $proto = prototype($try))) {
- $self->_construct_node( match=> $proto, run => $try )->to_app;
+ $self->_construct_node(match => $proto, run => $try);
} else {
$try
}
- } elsif (!ref($try) and ref($more->[0]) eq 'CODE') {
- $self->_construct_node( match => $try, run => shift(@$more) )->to_app;
+ } elsif (!ref($try)
+ and (ref($more->[0]) eq 'CODE'
+ or (!ref($more->[0]) and $self->dispatch_object
+ and $self->dispatch_object->can($more->[0])))
+ ) {
+ $self->_construct_node(match => $try, run => shift(@$more));
+ } elsif (
+ (blessed($try) && $try->isa('Web::Dispatch::Matcher'))
+ and (ref($more->[0]) eq 'CODE')
+ ) {
+ $self->_construct_node(match => $try, run => shift(@$more));
} elsif (blessed($try) && $try->can('to_app')) {
$try->to_app;
} else {
sub _construct_node {
my ($self, %args) = @_;
- $args{match} = $self->_parser->parse( $args{match} );
- $self->node_class->new({ %{$self->node_args}, %args });
+ $args{match} = $self->_parser->parse($args{match}) if !ref $args{match};
+ if ( my $obj = $self->dispatch_object) {
+ # if possible, call dispatchers as methods of the app object
+ my $dispatch_sub = $args{run};
+ $args{run} = sub { $obj->$dispatch_sub(@_) };
+ }
+ $self->node_class->new(\%args)->to_app;
}
1;