[GROOVY-8493] Native lambdas with @CompileStatic at method level

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0-alpha-3
• Fix Version/s: 3.0.0-alpha-2, 2.6.0-alpha-4
• Assignee: Daniel Sun
• Reporter: Paul King
• Created: 06/Mar/18 05:02
• Updated: 26/Jul/18 04:46
• Resolved: 08/Mar/18 11:36

Description

This code:

import groovy.transform.CompileStatic
import java.util.stream.Collectors

@CompileStatic
class Main {
    static void main(String[] args) {
        assert [2, 3, 4] == [1, 2, 3].stream().map(e -> e.plus 1).collect(Collectors.toList())
    }
}

works and produces a native lambda with the following bytecode within it's doCall method:

INVOKESTATIC org/codehaus/groovy/runtime/dgmimpl/NumberNumberPlus.plus (Ljava/lang/Number;Ljava/lang/Number;)Ljava/lang/Number;

but moving the @compileStatic to the main method only, results in the following error:

java.lang.NoSuchMethodError: java.lang.Number.plus(Ljava/lang/Number;)Ljava/lang/Number;

and the following bytecode in the doCall method:

INVOKESTATIC java/lang/Number.plus (Ljava/lang/Number;)Ljava/lang/Number;