组内协作（group）自动生成

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数据来自 entelechy help <name> --json。下方的详细描述保留源码中的英文原文。

简述

只能在 group 模式的 Kernel 中使用：组内各 lane 交换数据、同步。

方法

返回	函数	需要能力
T	exchange (value: T, lane: Int)	—
Int	lane ()	—

方法说明

exchange

exchange(value: T, lane: Int) -> T

What lane lane of the group (wrapped into it, so lane() + 1 and -1 go round) holds as value at this exchange. Every lane of the group meets there, so an exchange stands under no branch, loop count or until that turns on what a lane holds alone (its lane, its element, what it reads or was handed): what the whole group holds (params, literals, the domain) may steer one. Group only, from its body.

只能在 Kernel 主体中调用

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lane

lane() -> Int

This element’s place in its group, from 0 to the group’s size less one: element() % the size.

只能在 Kernel 主体中调用

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