paolo di tommaso created GROOVY-11211:
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Summary: Unexpected invocation of getter method
Key: GROOVY-11211
URL: https://issues.apache.org/jira/browse/GROOVY-11211
Project: Groovy
Issue Type: Bug
Components: groovy-runtime
Affects Versions: 4.0.15
Reporter: paolo di tommaso
The map `get` method is invoked unexpectedly while resolving a closure
delegate.
To replicate the issue consider the following custom Map object in which both
`get` and `invokeMethod` methods are overridden:
{code:java}
class Context implements Map<String,Object> {
@Delegate private Map<String,Object> target
Context(Map<String,Object> target) { this.target = target }
@Override
Object get(Object name) {
if( target.containsKey(name) )
return target.get(name)
throw new Exception('Missing key: ' + name)
}
@Override
Object invokeMethod(String name, Object args) {
if( name == 'foo' )
return 'OK'
else
super.invokeMethod(name, args)
}
}
{code}
Then, a closure tries to invoke the `foo` method via a context delegate, as
shown below:
{code:java}
def closure = { it -> foo() }
closure.delegate = new Context([:])
closure.setResolveStrategy(Closure.DELEGATE_ONLY)
assert closure.call() == 'OK' {code}
The `OK` string should be returned by the closure because `foo` method should
be resolved via the `invokeMethod` method.
However, the above snippet fails with the following message:
{code:java}
java.lang.Exception: Missing key: foo {code}
This code works as expected with Groovy 3.x
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