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https://issues.apache.org/jira/browse/GROOVY-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16204662#comment-16204662
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Eric Milles edited comment on GROOVY-7859 at 10/14/17 3:19 PM:
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I also found that {{String.&toLowerCase}} (for example) is not usable.
{code}
assert ['ABC','XYZ'].collect(String.&toLowerCase) == ['abc','xyz']
groovy.lang.MissingMethodException: No signature of method:
java.lang.String.toLowerCase() is applicable for argument types:
(java.lang.String) values: [ABC]
Possible solutions: toLowerCase(), toLowerCase(java.util.Locale),
toUpperCase(), toUpperCase(java.util.Locale)
at Script1.run(Script1.groovy:1)
{code}
Should I file a separate bug report for this?
was (Author: emilles):
I also found that {{String.&toLowerCase}} (for example) is not usable. It
results in:
{code}
assert ['ABC','XYZ'].collect(String.&toLowerCase) == ['abc','xyz']
groovy.lang.MissingMethodException: No signature of method:
java.lang.String.toLowerCase() is applicable for argument types:
(java.lang.String) values: [ABC]
Possible solutions: toLowerCase(), toLowerCase(java.util.Locale),
toUpperCase(), toUpperCase(java.util.Locale)
at Script1.run(Script1.groovy:1)
{code}
Should I file a separate bug report for this?
> 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
>
> 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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