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https://issues.apache.org/jira/browse/GROOVY-9131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Sun updated GROOVY-9131:
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Fix Version/s: 3.0.0-beta-2
> Extension method support for native method references
> -----------------------------------------------------
>
> Key: GROOVY-9131
> URL: https://issues.apache.org/jira/browse/GROOVY-9131
> Project: Groovy
> Issue Type: Improvement
> Reporter: Paul King
> Assignee: Daniel Sun
> Priority: Major
> Fix For: 3.0.0-beta-2
>
>
> The following two method reference statements compile and execute
> successfully with and without @CS (and with CS produce the correct native
> bytecode):
> {code}
> assert 'Hi'.transform(String::length) == 2 // transform is JDK12
> assert 'Hi'.transform(StringGroovyMethods::size) == 2
> {code}
> This statement (using the extension method from StringGroovyMethods) works
> for dynamic Groovy:
> {code}
> assert 'Hi'.transform(String::size) == 2
> {code}
> But for static Groovy fails compilation with:
> {noformat}
> 1 compilation error:
> org.codehaus.groovy.syntax.RuntimeParserException: Failed to find the
> expected method[size(java.lang.String)] in the type[java.lang.String]
> {noformat}
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