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https://issues.apache.org/jira/browse/GROOVY-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17643037#comment-17643037
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Eric Milles edited comment on GROOVY-7859 at 12/4/22 4:23 PM:
--------------------------------------------------------------
For pointer or reference, the following is current behavior:
{code:groovy}
@groovy.transform.TypeChecked
void test7859() {
def x = 'abc'.&bar // STC: Cannot find matching method java.lang.String#bar
x = String.&length // instance method closure that requires String as first
argument
x = String.&size // instance extension method closure that requires String as
first argument
}
{code}
was (Author: emilles):
For pointer or reference, the following is current behavior:
{code:groovy}
@groovy.transform.CompileStatic
void test7859() {
def x = 'abc'.&bar // STC: Cannot find matching method java.lang.String#bar
x = String.&length // instance method closure that requires String as first
argument
x = String.&size // instance extension method closure that requires String as
first argument
}
{code}
> Erroneous method pointer expressions pass STC
> ---------------------------------------------
>
> Key: GROOVY-7859
> URL: https://issues.apache.org/jira/browse/GROOVY-7859
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Affects Versions: 2.4.7
> Reporter: Shil Sinha
> Assignee: Shil Sinha
> Priority: Major
> Fix For: 3.0.14, 4.0.7
>
>
> Method pointer expressions are not type checked (with STC enabled). The
> following example should not compile for a number of reasons:
> {code}
> @groovy.transform.TypeChecked
> void test() {
> def x = 'abc'.&bar //bar is not a String method
> x() // groovy.lang.MissingMethodException
> x = String.&length //length is a non-static method
> x() // java.lang.IllegalArgumentException: object is not an instance of
> declaring class
> x = String.&size //size is a non-static extension method
> x() // java.lang.ClassCastException: java.lang.Class cannot be cast to
> java.lang.String
> }
> test()
> {code}
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