Scott Murphy Heiberg created GROOVY-12522:
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Summary: super.name() and super.name miss an extension method that
the class overrides
Key: GROOVY-12522
URL: https://issues.apache.org/jira/browse/GROOVY-12522
Project: Groovy
Issue Type: Bug
Components: groovy-runtime
Affects Versions: 6.0.0
Reporter: Scott Murphy Heiberg
When a class declares its own version of an extension method of its superclass,
{{super.name()}} and {{super.name}} in dynamic Groovy and under
{{@TypeChecked}} do not find the superclass's extension method:
{code:groovy}
class Numbers extends ArrayList<Integer> {
Numbers() { super([1, 2, 3]) }
Integer first() { -1 }
def test() { super.first() }
}
class Bean {
Map getProperties() { [:] }
def test() { super.properties.containsKey('class') }
}
class Text extends File {
Text(String path) { super(path) }
String getText() { 'own' }
def test() { [super.getText(), super.text] }
}
assert new Numbers().test() == 1 // fails: MissingMethodException: No signature
of method: first for class: java.util.ArrayList
assert new Bean().test() // fails: MissingPropertyException: No such
property: properties for class: Bean
def file = File.createTempFile('text', '.txt')
file.text = 'content'
assert new Text(file.path).test() == ['content', 'content'] // fails:
NullPointerException: charsetName
{code}
{{super.getText()}} calls {{getText(File, String charset)}} with a null
charset, the only {{getText}} left for {{super}}. Without the class's own
method, all three work. Under {{@CompileStatic}} these calls work, but
{{super.text += 'x'}} compiles to a dynamic property access and fails the same
way. Seen in 4.0.33, 5.0.8, 6.0.0 and master.
For {{super}}, a method the class declares is replaced by the MOP method
{{super$2$name}} of the superclass method it overrides, or dropped when there
is none. An extension method has no MOP method, so the class's method is
dropped, and the extension method it replaced in the method index is not
restored.
Expected: {{super.name()}} and {{super.name}} call the superclass's extension
method, as they do when the class does not declare the method.
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