Scott Murphy Heiberg created GROOVY-12514:
---------------------------------------------
Summary: Qualified this naming the current class (N.this inside N)
is rejected
Key: GROOVY-12514
URL: https://issues.apache.org/jira/browse/GROOVY-12514
Project: Groovy
Issue Type: Bug
Components: Compiler, Static Type Checker
Affects Versions: 6.0.0
Reporter: Scott Murphy Heiberg
{{N.this}} inside class {{N}} is {{this}}. The type checker rejects it when
{{N}} is a nested class:
{code:groovy}
@groovy.transform.CompileStatic
class Box {
static class N {
String id = 'n'
String test() { N.this.id }
}
}
new Box.N().test()
{code}
{code}
[Static type checking] - No such property: this for Class or static property
for class: Box$N
{code}
Dynamic Groovy returns {{n}}, and javac accepts the same code ({{return
N.this.id;}}). The same error is reported under {{@TypeChecked}}, for an inner
(non-static) class {{N}}, for {{N.this.pm()}} and {{N.this.id = 'w'}}, and
inside a closure or lambda in {{N}}. {{N.this}} inside an anonymous class
created in {{N}} already works, because {{N}} is an outer class there.
For a top-level class the compiler rejects it in every mode, dynamic Groovy
included:
{code:groovy}
class Top {
String id = 't'
String test() { Top.this.id }
}
new Top().test()
{code}
{code}
The usage of 'Class.this' and 'Class.super' is only allowed in nested/inner
classes.
{code}
javac accepts it and prints {{t}}. Seen in 5.0.8, 6.0.0 and master.
Expected: {{C.this}} naming the class that contains the code means {{this}}, in
every mode, except in a static context, where it stays an error.
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