带有映射的Groovy多重赋值

我在为映射中的值执行多重赋值语句时遇到问题

def map = [a:1,b:2]
(map.a, map.b) = [3,4]

这会引发一个异常：

expecting ')', found ',' at line: 2, column: 7

但是，这样做很好：

def a = 1
def b = 2
(a, b) = [3,4]

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它不支持这一点

---

事实上，如果你作弊并使用：

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哇，这是一个巧妙的解决办法。那会有用的，伊戈尔！

currently only simple variables may be the target of multiple assignment expressions, e.g.if you have a person class with firstname and lastname fields, you can't currently do this:

(p.firstname, p.lastname) = "My name".split()

Map map = [a: 1, b:2]

map.with {
    (a, b) = [3, 4]
}

assert map.a == 3
assert map.b == 4