X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FMethod%2FAccessor.pm;h=d66425fe2d1ed894993ffaf814b83b8f4e649632;hp=b05e2672966b3e2cc00f2398a67d3cebf9e330d0;hb=59afef985b4a8c91e505715d75457b35656e4013;hpb=6872b0aba5332f4262894551ab1c4dacc29d9b0e diff --git a/lib/Mouse/Meta/Method/Accessor.pm b/lib/Mouse/Meta/Method/Accessor.pm old mode 100755 new mode 100644 index b05e267..d66425f --- a/lib/Mouse/Meta/Method/Accessor.pm +++ b/lib/Mouse/Meta/Method/Accessor.pm @@ -1,13 +1,15 @@ package Mouse::Meta::Method::Accessor; -use Mouse::Util; # enables strict and warnings +use Mouse::Util qw(:meta); # enables strict and warnings + +use constant _MOUSE_DEBUG => $ENV{MOUSE_DEBUG} ? 1 : 0; sub _inline_slot{ my(undef, $self_var, $attr_name) = @_; return sprintf '%s->{q{%s}}', $self_var, $attr_name; } -sub _generate_accessor{ - my ($method_class, $attribute, $class, $type) = @_; +sub _generate_accessor_any{ + my($method_class, $type, $attribute, $class) = @_; my $name = $attribute->name; my $default = $attribute->default; @@ -16,29 +18,31 @@ sub _generate_accessor{ my $trigger = $attribute->trigger; my $is_weak = $attribute->is_weak_ref; my $should_deref = $attribute->should_auto_deref; - my $should_coerce = (defined($constraint) && $constraint->has_coercion && $attribute->should_coerce); + my $should_coerce = (defined($constraint) + && $constraint->has_coercion + && $attribute->should_coerce); - my $compiled_type_constraint = defined($constraint) ? $constraint->_compiled_type_constraint : undef; + my $compiled_type_constraint = defined($constraint) + ? $constraint->_compiled_type_constraint + : undef; my $self = '$_[0]'; my $slot = $method_class->_inline_slot($self, $name);; - $type ||= 'accessor'; - - my $accessor = sprintf(qq{#line 1 "%s for %s (%s)"\n}, $type, $name, __FILE__) + my $accessor = sprintf(qq{package %s;\n#line 1 "%s-accessor for %s (%s)"\n}, $class->name, $type, $name, __FILE__) . "sub {\n"; - if ($type eq 'accessor' || $type eq 'writer') { - if($type eq 'accessor'){ - $accessor .= + if ($type eq 'rw' || $type eq 'wo') { + if($type eq 'rw'){ + $accessor .= 'if (scalar(@_) >= 2) {' . "\n"; } else{ # writer - $accessor .= - 'if(@_ < 2){ Carp::confess("Not enough arguments for the writer of '.$name.'") }'. + $accessor .= + 'if(@_ < 2){ Carp::confess("Not enough arguments for the writer of $name") }'. '{' . "\n"; } - + my $value = '$_[1]'; if (defined $constraint) { @@ -48,10 +52,10 @@ sub _generate_accessor{ 'my $val = $constraint->coerce('.$value.');'; $value = '$val'; } - $accessor .= + $accessor .= "\n". '$compiled_type_constraint->('.$value.') or - $attribute->verify_type_constraint_error($name, '.$value.', $constraint);' . "\n"; + $attribute->_throw_type_constraint_error('.$value.', $constraint);' . "\n"; } # if there's nothing left to do for the attribute we can return during @@ -70,14 +74,14 @@ sub _generate_accessor{ $accessor .= "}\n"; } - elsif($type eq 'reader') { - $accessor .= 'Carp::confess("Cannot assign a value to a read-only accessor") if scalar(@_) >= 2;' . "\n"; + elsif($type eq 'ro') { + $accessor .= 'Carp::confess("Cannot assign a value to a read-only accessor of $name") if scalar(@_) >= 2;' . "\n"; } else{ $class->throw_error("Unknown accessor type '$type'"); } - if ($attribute->is_lazy) { + if ($attribute->is_lazy and $type ne 'wo') { my $value; if (defined $builder){ @@ -90,20 +94,23 @@ sub _generate_accessor{ $value = '$default'; } + $accessor .= "els" if $type eq 'rw'; $accessor .= "if(!exists $slot){\n"; if($should_coerce){ $accessor .= "$slot = \$constraint->coerce($value)"; } elsif(defined $constraint){ $accessor .= "my \$tmp = $value;\n"; - $accessor .= "\$compiled_type_constraint->(\$tmp)"; - $accessor .= " || \$attribute->verify_type_constraint_error(\$name, \$tmp, \$constraint);\n"; + $accessor .= " || \$attribute->_throw_type_constraint_error(\$tmp, \$constraint);\n"; $accessor .= "$slot = \$tmp;\n"; } else{ $accessor .= "$slot = $value;\n"; } + if ($is_weak) { + $accessor .= "Scalar::Util::weaken($slot) if ref $slot;\n"; + } $accessor .= "}\n"; } @@ -121,7 +128,7 @@ sub _generate_accessor{ $accessor .= "return $slot;\n}\n"; - #print "# class ", $class->name, "\n", $accessor, "\n"; + warn $accessor if _MOUSE_DEBUG; my $code; my $e = do{ local $@; @@ -133,19 +140,27 @@ sub _generate_accessor{ return $code; } -sub _generate_reader{ - my $class = shift; - return $class->_generate_accessor(@_, 'reader'); +sub _generate_accessor{ + #my($self, $attribute, $metaclass) = @_; + my $self = shift; + return $self->_generate_accessor_any(rw => @_); } -sub _generate_writer{ - my $class = shift; - return $class->_generate_accessor(@_, 'writer'); +sub _generate_reader { + #my($self, $attribute, $metaclass) = @_; + my $self = shift; + return $self->_generate_accessor_any(ro => @_); } +sub _generate_writer { + #my($self, $attribute, $metaclass) = @_; + my $self = shift; + return $self->_generate_accessor_any(wo => @_); +} sub _generate_predicate { - my (undef, $attribute, $class) = @_; + #my($self, $attribute, $metaclass) = @_; + my(undef, $attribute) = @_; my $slot = $attribute->name; return sub{ @@ -154,11 +169,11 @@ sub _generate_predicate { } sub _generate_clearer { - my (undef, $attribute, $class) = @_; + #my($self, $attribute, $metaclass) = @_; + my(undef, $attribute) = @_; my $slot = $attribute->name; - - return sub{ + return sub{ delete $_[0]->{$slot}; }; } @@ -172,7 +187,7 @@ Mouse::Meta::Method::Accessor - A Mouse method generator for accessors =head1 VERSION -This document describes Mouse version 0.40_05 +This document describes Mouse version 0.84 =head1 SEE ALSO