Perl6 hyper » 操作符不像地图那样工作 [英] Perl6 hyper » operator doesn't work like map

问题描述

据我所知，超级运算符 » 是 map() 的快捷方式.为什么以下返回两个不同的结果并且在第二个示例中 .sum 似乎没有应用?

As far as I undertand it, the hyper operator » is a shortcut for map(). Why does the following return two different results and in the second example .sum seems not to be applied?

say ([1,2], [2, 2], [3, 3]).map({.sum});
# (3 4 6)
say ([1,2], [2, 2], [3, 3])».sum;
# ([1 2] [2 2] [3 3])

推荐答案

Hyperops 递归下降到子列表中.他们也是自动线程 (NYI) 的候选者，这意味着他们的操作是无序的.

Hyperops descend recursively into sublists. Also they are candidates for autothreading (NYI) what means their operations are out of order.

还有一个错误已通过 https://github.com/rakudo/rakudo 修正/commit/c8c27e93d618bdea7de3784575d867d9e7a2f6cb .

Also there was a bug that is corrected with https://github.com/rakudo/rakudo/commit/c8c27e93d618bdea7de3784575d867d9e7a2f6cb .

say ([1,2], [2, 2], [3, 3])».sum;
# (3 4 6)

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