Paul King created GROOVY-9132:
---------------------------------
Summary: Improve type inference for method reference
Key: GROOVY-9132
URL: https://issues.apache.org/jira/browse/GROOVY-9132
Project: Groovy
Issue Type: Improvement
Reporter: Paul King
Compiling this code:
{code}
assert 'Hi'.transform(String::length) * 3 == 6 // transform is JDK12
{code}
with type checking gives:
{noformat}
[Static type checking] - Cannot find matching method
java.lang.Object#multiply(int). Please check if the declared type is correct
and if the method exists.
{noformat}
We can close as duplicate if this overlaps with an existing issue. It might not
be anything to do with method references but an existing limitation in the type
checker around supporting generics. For reference, the definition of
{{transform}} is:
{code}
public <R> R transform​(Function<? super String,​? extends R> f)
{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
