[GROOVY-4038] Closure meta class respondsTo(closure, "doCall") does not work

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.7, 1.5.8
• Fix Version/s: 1.7.2, 1.8-beta-1
• Environment: Only tested for Groovy 1.5.7 and 1.5.8 since i am unable to compile the project with groovy 1.8.0
• Assignee: Roshan Dawrani
• Reporter: Joscha Drechsler
• Created: 04/Feb/10 06:42
• Updated: 07/Apr/10 23:45
• Resolved: 03/Mar/10 10:48

Description

When running the following code:

Closure test =

{String x -> println x}

;
println test.metaClass.respondsTo(test, "doCall");

The resulting output is: []

Which is incorrect, since the MOP for respondsTo(Object, String) states:
[...] if the implementing MetaClass responds to a method with the given name regardless of arguments.
But the Closure does respond to doCall(String), which can easily be verified using this code:

println test.metaClass.respondsTo(test, "doCall", "Hello");

which will output something similar to: [public MyClass$_myMethod_closure1.doCall(java.lang.String)]
which tells us, that the closure does respond to doCall(String).

Hence, this meta method, and all other meta methods named doCall - regardless of their parameters - aswell, should also be included in the list returned by respondsTo(Object,String).