When to_ary from yield does not return an array we ClassCast
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Key: JRUBY-5950
URL: https://jira.codehaus.org/browse/JRUBY-5950
Project: JRuby
Issue Type: Bug
Components: Interpreter
Affects Versions: JRuby 1.6.3
Reporter: Thomas E Enebo
{noformat}
jruby -e 'class Foo; def to_ary; Foo.new; end; end; def foo(a); yield a; end;
foo(Foo.new) { |a, b| p a, b }' ArgsUtil.java:86:in
`convertToRubyArrayWithCoerce': java.lang.ClassCastException:
org.jruby.RubyObject cannot be cast to org.jruby.RubyArray from ArgsUtil.java:69
{noformat}
This should give an error like:
{noformat}
ruby -e 'class Foo; def to_ary; Foo.new; end; end; def foo(a); yield a; end;
foo(Foo.new) { |a, b| p a, b }'
-e:1: Foo#to_ary should return Array (TypeError)
{noformat}
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