將關閉範圍設置爲調用方法

Question

是否可以將Groovy關閉範圍設置爲調用方法？請參見下面的示例代碼：

class TestClass { 

    def testMethod() { 
    def i = 42 

    def closure = testClosure() 
    closure.resolveStrategy = Closure.DELEGATE_FIRST 
    closure.delegate = this.&testMethod 
    closure() // Should print 42. 
    } 

    def testMethod2() { 
    def i = 43 

    def closure = testClosure() 
    closure.resolveStrategy = Closure.DELEGATE_FIRST 
    closure.delegate = this.&testMethod2 
    closure() // Should print 43. 
    } 

    def testClosure = { 
    println i // I get a MissingPropertyException: No such property i 
    } 
} 

def test = new TestClass() 
test.testMethod() 
test.testMethod2() 

Answer 1

沒有，但你可以移動i在同一範圍內關閉：

class TestClass { 

    def i 

    def testMethod() { 
    i = 42 
    testClosure() // Should print 42. 
    } 

    def testMethod2() { 
    i = 43 
    testClosure() // Should print 43. 
    } 

    def testClosure = { 
    println i // I get a MissingPropertyException: No such property i 
    } 
} 

def test = new TestClass() 
test.testMethod() 
test.testMethod2()