groovy1059_bug.groovy

来自「Groovy动态语言 运行在JVM中的动态语言 可以方便的处理业务逻辑变化大的业」· GROOVY 代码 · 共 54 行

package groovy.bugs

/**
 * TODO: GROOVY-1059
 *
 *    Accessible to a closure attribute of an abject with the operator ".@".
 *    For examples, all of the expressions
 *
 *            object.@closure()
 *            [e-mail]()
 *            [e-mail]()
 *            (object.@closure)()
 *
 *    have the same meaning.
 *
 * @author  John Wilson
 * @author  Pilho Kim
 */

class Groovy1059_Bug extends GroovyTestCase {

    void testClosureAsAttribute() {
        def x = new Groovy1059Foo()

        println( x.say() )
        println( (x.@say)() )
        println( x.@say() )  // TODO: Groovy-1059 should work
        println( [e-mail]() )
        println( [e-mail]() )
        println( x.@say2() )

        assert "I am a Method" == x.say()
        assert "I am a Method" == x.@say2()
        assert "I am a Closure" == (x.@say)()
        assert "I am a Closure" == x.@say()
        assert x.@say() == (x.@say)()
        assert x.@say() == [e-mail]()
        assert x.@say() == [e-mail]()
        assert x.@say() != x.say()
        assert x.@say2() == x.say()
    }

}

class Groovy1059Foo {

    def public say = { it -> return "I am a Closure" }
    def public say2 = this.&say

    public Object say() {
       return "I am a Method"
    }
}