doc: Error for "." and ".." specifiers differs from documented Resolver Algorithm

• Version: ✍️

16.7.0

• Platform: ✍️

Linux penguin 5.4.119-14945-gafc97d54f809 #1 SMP PREEMPT Tue Aug 10 21:49:04 PDT 2021 x86_64 GNU/Linux

• Subsystem: ✍️

module

Location

Affected URL(s):

• https://nodejs.org/api/esm.html#esm_resolver_algorithm_specification

Description

I'm not sure if this is a bug with the ESM resolver or with the docs but basically if we do:

import foo from ".";

Then Node throws a ERR_UNSUPPORTED_DIR_IMPORT error, based on a reading of the Resolver Algorithm I expected this to be ERR_INVALID_MODULE_SPECIFIER.

As CommonJS already treats require(".") and require("..") as directory imports the current behaviour in Node is probably the best, so the docs should be updated to reflect it. This would involve changing ESM_RESOLVE step 3 to:

• Otherwise, if specifier starts with "/", "./" or "../", or specifier equals "." or ".." then

Although if the current documented behaviour is the intended behaviour then the error needs updating.

从链接的 esm.html 部分中的 ESM Resolver Algorithm 规范开始，将第 3 步与对 "." 和 ".." 观察到的 import 行为进行比较。确认预期的是文档中的算法还是运行时行为，然后更新文档，使算法与报告的错误一致；当文档中的结果与 Node 的行为一致时，该 issue 即完成。