url: URLPattern.exec() does not preserve capture group declaration order

Version

latest main branch

Platform

7.1.4-arch1-1

Subsystem

url

What steps will reproduce the bug?

  const assert = require('node:assert');
  const { URLPattern } = require('node:url');

  const pattern = new URLPattern({
    pathname: '/:one/:two/:three',
  });

  const result = pattern.exec('https://example.com/a/b/c');

  console.log(Object.entries(result.pathname.groups));

How often does it reproduce? Is there a required condition?

Every

What is the expected behavior? Why is that the expected behavior?

  [
    ['one', 'a'],
    ['two', 'b'],
    ['three', 'c'],
  ]

URLPattern.exec() may expose named capture groups in an order different from their declaration order.

The captured values remain accessible by name, but the incorrect property insertion order is observable through Object.keys(), Object.values(), Object.entries(), object spread, and JSON serialization.

What do you see instead?

  [
    ['three', 'c'],
    ['two', 'b'],
    ['one', 'a'],
  ]

Additional information

No response

まず node:url の URLPattern.exec() を使って再現を実行し、結果の pathname.groups オブジェクトを調べます。名前付きグループがどのように挿入されるかを特定するため、URLPattern の実装とそのテストを追跡します；完了の条件は、グループが宣言順に現れ、名前によるアクセスも可能なままになっており、その例に対するリグレッションカバレッジがあることです。