[
https://issues.apache.org/jira/browse/GROOVY-9996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stefanos Chaliasos updated GROOVY-9996:
---------------------------------------
Component/s: Static Type Checker
Static compilation
> Cannot infer correct type argument when using subtyping
> -------------------------------------------------------
>
> Key: GROOVY-9996
> URL: https://issues.apache.org/jira/browse/GROOVY-9996
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation, Static Type Checker
> Reporter: Stefanos Chaliasos
> Assignee: Eric Milles
> Priority: Major
> Fix For: 3.0.8, 4.0.0-alpha-3
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> I have the following Groovy program.
> {code:groovy}
> @groovy.transform.CompileStatic
> public class Main {
> public static void main(String[] args) {
> Foo foo = new Bar()
> def x = new A<>(foo)
> bar(x)
> }
> public static void bar(A<Foo> f) {}
> }
> class A<T> {
> T f;
> public A(T f) {
> this.f = f;
> }
> }
> class Foo {}
> class Bar extends Foo {}
> {code}
> h2. Actual Behavior
> The program does not compile, and I get the following error.
> {code:java}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> Main.groovy: 6: [Static type checking] - Cannot call Main#bar(A <Foo>) with
> arguments [A <Bar>]
> @ line 6, column 5.
> bar(x)
> ^
> 1 error
> {code}
> h2. Expected Behavior
> Compile successfully.
> h2. Affected Version
> This should be a regression. The program compiles with 3.0.7 and
> 4.0.0-alpha-2, but fails with the compiler from Master (commit:
> e69c874e1a6a3cdeb236bad6a6faa061a30c88ca).
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
