lambda modoki at java.

build.gradle

apply plugin: 'java'
 
group = 'modoki'
 
repositories {
  mavenCentral()
  mavenLocal()
}
 
dependencies {
  compile 'com.google.guava:guava:16.0.1'
  compile 'com.github.buzztaiki:jenova:1.0-SNAPSHOT'
  compile 'org.projectlombok:lombok:1.12.6'
}
 
compileJava.options.compilerArgs = [
  '-processor', [
    'com.github.buzztaiki.jenova.AnnotationProcessor',
    'lombok.core.AnnotationProcessor'
  ].join(',')
]
 
task run(type: JavaExec) {
  classpath = sourceSets.main.runtimeClasspath
  main = 'Modoki'
}

Modoki.java

import com.github.buzztaiki.jenova.Jenova;
import com.github.buzztaiki.jenova.Lambda;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import java.util.Arrays;
import lombok.experimental.ExtensionMethod;

@Jenova({
    @Lambda(name="fn", type=Function.class),
    @Lambda(name="pred", type=Predicate.class)
})
@ExtensionMethod(Iterables.class)
public class Modoki {
    public static void main(String[] args) throws Exception {
        Iterable<Integer> l = Arrays.asList(1, 2, 3);
        System.out.println(
            l.filter(new pred<Integer>(){{return _1 > 1;}})
            .transform(new fn<Integer, Integer>(){{return _1 * 2;}})
        );
    }
}

% gradle --daemon --quiet run
[4, 6]

https://github.com/buzztaiki/jenova