chapel - 是否可以在记录中为泛型类型声明 LinkedList 字段？

Question

是否可以在 Chapel 记录中为泛型类型声明 LinkedList 字段？

我想我想做的是:

  record LIST {
    var itm: LinkedList(?t);
  };

其中链表元素类型 ?t声明记录时未知，但是:

./Structs.chpl:87: internal error: RES-CAL-NFO-0078 chpl version 1.19.0
Note: This source location is a guess.

Internal errors indicate a bug in the Chapel compiler ("It's us, not you"),
and we're sorry for the hassle.  We would appreciate your reporting this bug --
please see https://chapel-lang.org/bugs.html for instructions.  In the meantime,
the filename + line number above may be useful in working around the issue.

非常感谢!

Answer 1

为此，您可以制作 LIST类型泛型。

record LIST {
  type T;
  var itm: LinkedList(T);
}

var lst: LIST(int);

writeln(lst.type:string);
writeln(lst.itm.type:string);

产生...

LIST(int(64))
LinkedList(int(64))

lst所有字段的具体类型必须在声明时知道 lst .我们制造 LIST在类型上记录泛型 T ，然后使用此类型信息实例化字段 itm .

见: https://chapel-lang.org/docs/primers/genericClasses.html