Update enhanced-resolve 5.20.1 → 5.21.0 (minor) (#19998)

Here is everything you need to know about this update. Please take a
good look at what changed and the test results before merging this pull
request.

### What changed?




#### ✳️ enhanced-resolve (5.20.1 → 5.21.0) ·
[Repo](https://github.com/webpack/enhanced-resolve) ·
[Changelog](https://github.com/webpack/enhanced-resolve/blob/main/CHANGELOG.md)



<details>
<summary>Release Notes</summary>
<h4><a
href="https://github.com/webpack/enhanced-resolve/releases/tag/v5.21.0">5.21.0</a></h4>

<blockquote><h3 dir="auto">Minor Changes</h3>
<ul dir="auto">
<li>
<p dir="auto">Added promise API and support to resolve without <code
class="notranslate">context</code> and <code
class="notranslate">resolveContext</code>. (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/520">#520</a>)</p>
</li>
<li>
<p dir="auto">Add <code
class="notranslate">extensionAliasForExports</code> option. When <code
class="notranslate">true</code>, <code
class="notranslate">extensionAlias</code> also applies to paths resolved
through the <code class="notranslate">package.json</code> <code
class="notranslate">exports</code> field. Off by default to match
Node.js; opt in for full TypeScript-resolver parity with packages that
ship <code class="notranslate">.ts</code> sources alongside the compiled
<code class="notranslate">.js</code> they declare in <code
class="notranslate">exports</code>. (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/554">#554</a>)</p>
</li>
</ul>
<h3 dir="auto">Patch Changes</h3>
<ul dir="auto">
<li>
<p dir="auto">Properly handle DOS device paths (<code
class="notranslate">\\?\…</code> and <code
class="notranslate">\\.\…</code>). (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/551">#551</a>)</p>
</li>
<li>
<p dir="auto">Prevent fallback to parent node_modules when the <code
class="notranslate">exports</code> field target file is not found. (by
<a href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/495">#495</a>)</p>
</li>
<li>
<p dir="auto">Imports field spec deviation: non-relative targets (e.g.
<code class="notranslate">"#a": "#b"</code>) no longer re-enter imports
resolution, aligning with the Node.js ESM spec where <code
class="notranslate">PACKAGE_IMPORTS_RESOLVE</code> does not recursively
resolve <code class="notranslate">#</code> specifiers. (by <a
href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a> in
<a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/503">#503</a>)</p>
<p dir="auto">Previously <code class="notranslate">{ "#a": "#b", "#b":
"./the.js" }</code> would chain-resolve <code
class="notranslate">#a</code> to <code
class="notranslate">./the.js</code>; now it correctly fails, matching
Node.js behavior.</p>
</li>
<li>
<p dir="auto">Move <code class="notranslate">cachedJoin</code>/<code
class="notranslate">cachedDirname</code>/<code
class="notranslate">createCachedBasename</code> caches from module-level
globals to per-Resolver instances. This prevents unbounded memory growth
in long-running processes — when a Resolver is garbage collected, its
join/dirname/basename caches are released with it. (by <a
href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a> in
<a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/507">#507</a>)</p>
</li>
<li>
<p dir="auto">Fixed when <code class="notranslate">tsconfig: true</code>
is used (default config file) and no <code
class="notranslate">tsconfig.json</code> exists. (by <a
href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a> in
<a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/502">#502</a>)</p>
</li>
<li>
<p dir="auto">Apply the <code class="notranslate">extensionAlias</code>
option to the <code class="notranslate">imports</code> field to be align
with typescript resolution. (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/549">#549</a>)</p>
</li>
<li>
<p dir="auto">Improved performance of the many plugins. (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/529">#529</a>)</p>
</li>
<li>
<p dir="auto">Replace the <code
class="notranslate">Set&lt;string&gt;</code>-based resolver stack with a
singly-linked <code class="notranslate">StackEntry</code> class that
exposes a Set-compatible API. (by <a
href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a> in
<a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/526">#526</a>)</p>
<p dir="auto">Each <code class="notranslate">doResolve</code> call now
prepends a single linked-list node instead of cloning the entire Set,
making stack push O(1) in time and memory. Recursion detection walks the
linked list (O(n)), but because the stack is typically shallow this is
much cheaper than cloning a Set per call.</p>
</li>
<li>
<p dir="auto">Cache the result of <code
class="notranslate">stripJsonComments</code> + <code
class="notranslate">JSON.parse</code> in <code
class="notranslate">readJson</code> using a <code
class="notranslate">WeakMap</code> keyed by the raw file buffer. This
avoids redundant comment-stripping and JSON parsing on every resolve
call that reads tsconfig.json files (via <code
class="notranslate">stripComments: true</code>), improving
TsconfigPathsPlugin warm performance by ~20-35% depending on the depth
of the <code class="notranslate">extends</code> chain. (by <a
href="https://bounce.depfu.com/github.com/xiaoxiaojx">@xiaoxiaojx</a> in
<a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/524">#524</a>)</p>
</li>
<li>
<p dir="auto">Avoid OOM in CachedInputFileSystem when duration is
Infinity. (by <a
href="https://bounce.depfu.com/github.com/alexander-akait">@alexander-akait</a>
in <a
href="https://bounce.depfu.com/github.com/webpack/enhanced-resolve/pull/527">#527</a>)</p>
</li>
</ul></blockquote>
<p><em>Does any of this look wrong? <a
href="https://depfu.com/packages/npm/enhanced-resolve/feedback">Please
let us know.</a></em></p>
</details>

<details>
<summary>Commits</summary>
<p><a
href="https://github.com/webpack/enhanced-resolve/compare/ebc67d38969e8abe6789a51968380fa721fea778...35035ca158f1c8ada86fcf1653f319cbce669200">See
the full diff on Github</a>. The new version differs by more commits
than we can show here.</p>
</details>












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packages/@tailwindcss-cli/package.json

@@ -32,7 +32,7 @@
     "@parcel/watcher": "^2.5.1",
     "@tailwindcss/node": "workspace:*",
     "@tailwindcss/oxide": "workspace:*",
-    "enhanced-resolve": "^5.20.1",
+    "enhanced-resolve": "^5.21.0",
     "mri": "^1.2.0",
     "picocolors": "^1.1.1",
     "tailwindcss": "workspace:*"

packages/@tailwindcss-node/package.json

@@ -38,7 +38,7 @@
   },
   "dependencies": {
     "@jridgewell/remapping": "^2.3.5",
-    "enhanced-resolve": "^5.20.1",
+    "enhanced-resolve": "^5.21.0",
     "jiti": "^2.6.1",
     "lightningcss": "catalog:",
     "magic-string": "^0.30.21",

packages/@tailwindcss-standalone/package.json

@@ -30,7 +30,7 @@
     "@tailwindcss/forms": "^0.5.11",
     "@tailwindcss/typography": "^0.5.19",
     "detect-libc": "1.0.3",
-    "enhanced-resolve": "^5.20.1",
+    "enhanced-resolve": "^5.21.0",
     "tailwindcss": "workspace:*"
   },
   "__notes": "These binary packages must be included so Bun can build the CLI for all supported platforms. We also rely on Lightning CSS and Parcel being patched so Bun can statically analyze the executables.",

packages/@tailwindcss-upgrade/package.json

@@ -30,7 +30,7 @@
     "@tailwindcss/node": "workspace:*",
     "@tailwindcss/oxide": "workspace:*",
     "dedent": "1.7.2",
-    "enhanced-resolve": "^5.20.1",
+    "enhanced-resolve": "^5.21.0",
     "globby": "^16.2.0",
     "jiti": "^2.6.1",
     "mri": "^1.2.0",