defined? on metaclass hierarchy elements does not appear to search fully
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Key: JRUBY-4479
URL: http://jira.codehaus.org/browse/JRUBY-4479
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.5
Reporter: Charles Oliver Nutter
Here's an example with a constant... there may be other cases, though methods
appear to work:
{noformat}
class Foo
BLAH = 1
class << self
def has_blah
defined? self::BLAH
end
end
end
class Bar < Foo; end
p Bar.has_blah
p defined? Bar.has_blah
{noformat}
Should output "constant" followed by "method", but instead does nil and
"method" on JRuby.
This prevents the session library from working due to the hierarchy of
AbstractSession subclasses and the way it locates the "default_prog" on a
per-class basis:
{noformat}
...
class << self
def default_prog
return @default_prog if defined? @default_prog and @default_prog
if defined? self::DEFAULT_PROG
return @default_prog = self::DEFAULT_PROG
else
@default_prog = ENV["SESSION_#{ self }_PROG"]
end
nil
end
...
{noformat}
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