[英]module name is shadowing global name used in binding
tl;dr: How to change the following binding to be able to write Intl.DateTimeFormat.make()
instead of Intl_.DateTimeFormat.make()
? tl; dr:如何更改以下绑定以能够编写
Intl.DateTimeFormat.make()
而不是Intl_.DateTimeFormat.make()
?
type dateTimeFormat;
[@bs.deriving abstract]
type formatOptions = {
[@bs.optional]
weekday: string,
[@bs.optional]
day: string,
[@bs.optional]
month: string,
};
module Intl_ {
module DateTimeFormat {
module Impl {
type t;
};
[@bs.new] external make: unit => Impl.t = "Intl.DateTimeFormat";
[@bs.send] external format: (Impl.t, Js.Date.t) => string = "";
};
}
Intl_.DateTimeFormat.make()
->Intl_.DateTimeFormat.format(Js.Date.make())
->Js.log;
The issue问题
Without the underscore, this would compile to:如果没有下划线,这将编译为:
var Impl = /* module */[];
var DateTimeFormat = /* module */[/* Impl */Impl];
var Intl = /* module */[/* DateTimeFormat */DateTimeFormat];
console.log(new Intl.DateTimeFormat().format(new Date()));
exports.Intl = Intl;
The issue is that var Intl = ...
shadows the global Intl
, and thus breaks new Intl.DateTimeFormat()
.问题是
var Intl = ...
new Intl.DateTimeFormat()
了全局Intl
,从而破坏了new Intl.DateTimeFormat()
。
First of all, I'd consider this a bug in BuckleScript.首先,我认为这是 BuckleScript 中的一个错误。 This problem was most recently brought up in issue #3268 and partially resolved in this commit , but it still leaves a lot of names unreserved.
这个问题最近在问题 #3268 中提出并在此提交中部分解决,但它仍然留下了很多未保留的名称。 You should consider bringing this up there or in a new issue.
您应该考虑在那里或在新问题中提出这一点。
In the meantime, you can work around this by fully qualifying the name.同时,您可以通过完全限定名称来解决此问题。
Intl
isn't actually a global object, but attached to the global object, which in the context of a web page is window
. Intl
实际上不是一个全局对象,而是附着在全局对象,这在网页的背景是window
。 But since JavaScript will look for names on the global object when it's not found in the local environment, it looks very much like a global name.但是由于 JavaScript 会在本地环境中找不到时在全局对象上查找名称,因此它看起来非常像一个全局名称。
So if you change make
to:因此,如果您将
make
更改为:
[@bs.new] external make: unit => Impl.t = "window.Intl.DateTimeFormat";
it should work fine.它应该可以正常工作。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.