use Scalar::Util directly

[gitmo/Mouse.git] / lib / Mouse / TypeRegistry.pm

diff --git a/lib/Mouse/TypeRegistry.pm b/lib/Mouse/TypeRegistry.pm
index c1f4d36..7045382 100644 (file)
--- a/lib/Mouse/TypeRegistry.pm
+++ b/lib/Mouse/TypeRegistry.pm
@@ -4,20 +4,17 @@ use strict;
 use warnings;
 
 use Carp ();
-use Mouse::Util qw/blessed looks_like_number openhandle/;
+use Scalar::Util qw/blessed looks_like_number openhandle/;
 
-my $SUBTYPE = +{};
-my $COERCE = +{};
+my %SUBTYPE;
+my %COERCE;
+my %COERCE_KEYS;
 
+#find_type_constraint register_type_constraint
 sub import {
     my $class  = shift;
     my %args   = @_;
-    my $caller = caller(0);
-
-    if (defined $args{'-export'} && ref($args{'-export'}) eq 'ARRAY') {
-        no strict 'refs';
-        *{"$caller\::import"} = sub { _import(@_) };
-    }
+    my $caller = $args{callee} || caller(0);
 
     no strict 'refs';
     *{"$caller\::as"}          = \&_as;
@@ -47,42 +44,79 @@ sub _via (&) {
     $_[0]
 }
 
-sub _import {
-    my($class, @types) = @_;
-    return unless exists $SUBTYPE->{$class} && exists $COERCE->{$class};
-    my $pkg = caller(1);
-    return unless @types;
-    copy_types($class, $pkg, @types);
+my $optimized_constraints;
+my $optimized_constraints_base;
+{
+    no warnings 'uninitialized';
+    %SUBTYPE = (
+        Any        => sub { 1 },
+        Item       => sub { 1 },
+        Bool       => sub {
+            !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0'
+        },
+        Undef      => sub { !defined($_) },
+        Defined    => sub { defined($_) },
+        Value      => sub { defined($_) && !ref($_) },
+        Num        => sub { !ref($_) && looks_like_number($_) },
+        Int        => sub { defined($_) && !ref($_) && /^-?[0-9]+$/ },
+        Str        => sub { defined($_) && !ref($_) },
+        ClassName  => sub { Mouse::is_class_loaded($_) },
+        Ref        => sub { ref($_) },
+
+        ScalarRef  => sub { ref($_) eq 'SCALAR' },
+        ArrayRef   => sub { ref($_) eq 'ARRAY'  },
+        HashRef    => sub { ref($_) eq 'HASH'   },
+        CodeRef    => sub { ref($_) eq 'CODE'   },
+        RegexpRef  => sub { ref($_) eq 'Regexp' },
+        GlobRef    => sub { ref($_) eq 'GLOB'   },
+
+        FileHandle => sub {
+                ref($_) eq 'GLOB'
+                && openhandle($_)
+            or
+                blessed($_)
+                && $_->isa("IO::Handle")
+            },
+
+        Object     => sub { blessed($_) && blessed($_) ne 'Regexp' },
+    );
+
+    sub optimized_constraints { \%SUBTYPE }
+    my @SUBTYPE_KEYS = keys %SUBTYPE;
+    sub list_all_builtin_type_constraints { @SUBTYPE_KEYS }
 }
 
 sub _subtype {
     my $pkg = caller(0);
     my($name, %conf) = @_;
-    if (my $type = $SUBTYPE->{$name}) {
+    if (my $type = $SUBTYPE{$name}) {
         Carp::croak "The type constraint '$name' has already been created, cannot be created again in $pkg";
     };
     my $as = $conf{as};
-    my $stuff = $conf{where} || optimized_constraints()->{$as};
+    my $stuff = $conf{where} || $SUBTYPE{$as};
 
-    $SUBTYPE->{$name} = $stuff;
+    $SUBTYPE{$name} = $stuff;
 }
 
 sub _coerce {
     my($name, %conf) = @_;
 
     Carp::croak "Cannot find type '$name', perhaps you forgot to load it."
-        unless optimized_constraints()->{$name};
+        unless $SUBTYPE{$name};
 
-    my $subtypes = optimized_constraints();
-    $COERCE->{$name} ||= {};
+    unless ($COERCE{$name}) {
+        $COERCE{$name}      = {};
+        $COERCE_KEYS{$name} = [];
+    }
     while (my($type, $code) = each %conf) {
         Carp::croak "A coercion action already exists for '$type'"
-            if $COERCE->{$name}->{$type};
+            if $COERCE{$name}->{$type};
 
         Carp::croak "Could not find the type constraint ($type) to coerce from"
-            unless $subtypes->{$type};
+            unless $SUBTYPE{$type};
 
-        $COERCE->{$name}->{$type} = $code;
+        push @{ $COERCE_KEYS{$name} }, $type;
+        $COERCE{$name}->{$type} = $code;
     }
 }
 
@@ -109,60 +143,22 @@ sub _role_type {
 }
 
 sub typecast_constraints {
-    my($class, $pkg, $type, $value) = @_;
-    return $value unless $COERCE->{$type};
-
-    my $optimized_constraints = optimized_constraints();
-    for my $coerce_type (keys %{ $COERCE->{$type} }) {
-        local $_ = $value;
-        if ($optimized_constraints->{$coerce_type}->()) {
-            local $_ = $value;
-            return $COERCE->{$type}->{$coerce_type}->();
+    my($class, $pkg, $type_constraint, $types, $value) = @_;
+
+    local $_;
+    for my $type (ref($types) eq 'ARRAY' ? @{ $types } : ( $types )) {
+        next unless $COERCE{$type};
+        for my $coerce_type (@{ $COERCE_KEYS{$type}}) {
+            $_ = $value;
+            next unless $SUBTYPE{$coerce_type}->();
+            $_ = $value;
+            $_ = $COERCE{$type}->{$coerce_type}->();
+            return $_ if $type_constraint->();
         }
     }
-
     return $value;
 }
 
-{
-    no warnings 'uninitialized';
-    my $optimized_constraints = {
-        Any        => sub { 1 },
-        Item       => sub { 1 },
-        Bool       => sub {
-            !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0'
-        },
-        Undef      => sub { !defined($_) },
-        Defined    => sub { defined($_) },
-        Value      => sub { defined($_) && !ref($_) },
-        Num        => sub { !ref($_) && looks_like_number($_) },
-        Int        => sub { defined($_) && !ref($_) && /^-?[0-9]+$/ },
-        Str        => sub { defined($_) && !ref($_) },
-        ClassName  => sub { Mouse::is_class_loaded($_) },
-        Ref        => sub { ref($_) },
-
-        ScalarRef  => sub { ref($_) eq 'SCALAR' },
-        ArrayRef   => sub { ref($_) eq 'ARRAY'  },
-        HashRef    => sub { ref($_) eq 'HASH'   },
-        CodeRef    => sub { ref($_) eq 'CODE'   },
-        RegexpRef  => sub { ref($_) eq 'Regexp' },
-        GlobRef    => sub { ref($_) eq 'GLOB'   },
-
-        FileHandle => sub {
-                ref($_) eq 'GLOB'
-                && openhandle($_)
-            or
-                blessed($_)
-                && $_->isa("IO::Handle")
-        },
-
-        Object     => sub { blessed($_) && blessed($_) ne 'Regexp' },
-    };
-    sub optimized_constraints {
-        return { %{ $SUBTYPE }, %{ $optimized_constraints } };
-    }
-}
-
 1;
 
 __END__