[GROOVY-6005] GPars collection methods don't work with @CompileStatic

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.1.1
• Component/s: GroovyScriptEngine
• Labels: compilestatic gpars
• Environment: using Gpars 1.0 and groovy 2.1.1
• Assignee: Cédric Champeau
• Reporter: Ryan Gardner
• Created: 19/Feb/13 06:36
• Updated: 19/Mar/13 05:11
• Resolved: 19/Feb/13 08:42

Description

When attempting to use both @CompileStatic and GPars (either GParsPool or GParsExecutorPool) there is a compile time error.

The following sample code:

Example test case showing a few examples that should work

import groovy.transform.CompileStatic
import groovyx.gpars.GParsExecutorsPool

import java.util.concurrent.ForkJoinPool

@CompileStatic
class GParsStatic {
    def foo = ["foo", "bar", "blarg", "doo", "woop", "bliz"]

    ForkJoinPool forkJoinPool = new ForkJoinPool()

    void testEachParallel() {
        GParsExecutorsPool.withExistingPool(forkJoinPool) {
            foo.eachParallel { String entry ->
                println("${entry}")
            }
        }
    }
    void testEachWithIndexParallel() {
        GParsExecutorsPool.withExistingPool(forkJoinPool) {
            foo.eachWithIndexParallel { String entry, int i ->
                println("${entry} at index ${i}")
            }
        }
    }

}

produces the errors:

Groovyc: [Static type checking] - Cannot find matching method java.lang.Object#eachParallel(groovy.lang.Closure). Please check if the declared type is right and if the method exists.
Groovyc: [Static type checking] - Cannot find matching method java.lang.Object#eachWithIndexParallel(groovy.lang.Closure). Please check if the declared type is right and if the method exists.

Since this is a compile-time error, I haven't created a junit test for it (I do have a simple spock test, if it helps

"simple spock test that calls the methods that should work"

import spock.lang.Specification


class GParsStaticSpec extends Specification{
    def "test that method runs"() {
    setup:
        GparsStaticCompile gparsStaticCompile = new GparsStaticCompile()
    when:
        gparsStaticCompile.testEachWithIndexParallel()
        gparsStaticCompile.testEachParallel()
    then:
        notThrown(Exception)
    }
}

If the

{monospaced}@CompileStatic{monospaced}

is removed, the class compiles and the methods run properly.