load overload.pm explicitly for overload::StrVal

[gitmo/Moo.git] / lib / Method / Generate / Accessor.pm

diff --git a/lib/Method/Generate/Accessor.pm b/lib/Method/Generate/Accessor.pm
index 01acab8..0918912 100644 (file)
--- a/lib/Method/Generate/Accessor.pm
+++ b/lib/Method/Generate/Accessor.pm
@@ -5,6 +5,8 @@ use Moo::_Utils;
 use base qw(Moo::Object);
 use Sub::Quote;
 use B 'perlstring';
+use Scalar::Util 'blessed';
+use overload ();
 BEGIN {
   our $CAN_HAZ_XS =
     !$ENV{MOO_XS_DISABLE}
@@ -43,16 +45,16 @@ sub generate_method {
   if (($spec->{trigger}||0) eq 1) {
     $spec->{trigger} = quote_sub('shift->_trigger_'.$name.'(@_)');
   }
-  if (exists $spec->{default}) {
-    my $default = $spec->{default};
-    unless (ref $default) {
-      die "Invalid default $default";
-    }
-    if (ref $default ne 'CODE') {
-      unless (eval { \&$default }) {
-        die "Invalid default $default";
-      }
-    }
+
+  for my $setting (qw( default coerce )) {
+    next if !exists $spec->{$setting};
+    my $value = $spec->{$setting};
+    my $invalid = "Invalid $setting '" . overload::StrVal($value)
+      . "' for $into->$name - not a coderef";
+    die "$invalid or code-convertible object"
+      unless ref $value and (ref $value eq 'CODE' or blessed($value));
+    die "$invalid and could not be converted to a coderef: $@"
+      if !eval { \&$value };
   }
 
   my %methods;