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fix(slot-fallback): fix hiding fallback slot content issue when the slotted element is a text node #5496

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yigityuce
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@yigityuce yigityuce commented Mar 15, 2024

What is the current behavior?

When a text node is provided to the scoped component as a slot, the slot fallback content does not become hidden.

Reproduction repo: https://github.com/yigityuce/stencil-v4-sc-slot-fallback-with-textnode/commits/master/

GitHub Issue Number: #5335

What is the new behavior?

Fixes the issue

Documentation

Does this introduce a breaking change?

  • Yes
  • No

Testing

Other information

@yigityuce yigityuce requested a review from a team as a code owner March 15, 2024 21:31
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github-actions bot commented Mar 15, 2024

--strictNullChecks error report

Typechecking with --strictNullChecks resulted in 1137 errors on this branch.

That's the same number of errors on main, so at least we're not creating new ones!

reports and statistics

Our most error-prone files
Path Error Count
src/dev-server/index.ts 37
src/dev-server/server-process.ts 32
src/compiler/prerender/prerender-main.ts 22
src/runtime/client-hydrate.ts 20
src/testing/puppeteer/puppeteer-element.ts 20
src/screenshot/connector-base.ts 19
src/runtime/vdom/vdom-render.ts 17
src/dev-server/request-handler.ts 15
src/compiler/prerender/prerender-optimize.ts 14
src/compiler/sys/stencil-sys.ts 14
src/sys/node/node-sys.ts 14
src/compiler/prerender/prerender-queue.ts 13
src/compiler/sys/in-memory-fs.ts 13
src/runtime/connected-callback.ts 13
src/runtime/set-value.ts 13
src/compiler/output-targets/output-www.ts 12
src/compiler/transformers/test/parse-vdom.spec.ts 12
src/compiler/transformers/transform-utils.ts 12
src/compiler/transpile/transpile-module.ts 12
src/mock-doc/test/attribute.spec.ts 12
Our most common errors
Typescript Error Code Count
TS2322 361
TS2345 344
TS18048 204
TS18047 82
TS2722 37
TS2532 24
TS2531 21
TS2454 14
TS2790 11
TS2352 9
TS2769 8
TS2538 8
TS2416 7
TS2493 3
TS18046 2
TS2684 1
TS2430 1

Unused exports report

There are 14 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!

Unused exports
File Line Identifier
src/runtime/bootstrap-lazy.ts 21 setNonce
src/screenshot/screenshot-fs.ts 18 readScreenshotData
src/testing/testing-utils.ts 198 withSilentWarn
src/utils/index.ts 145 CUSTOM
src/utils/index.ts 269 normalize
src/utils/index.ts 7 escapeRegExpSpecialCharacters
src/compiler/app-core/app-data.ts 25 BUILD
src/compiler/app-core/app-data.ts 115 Env
src/compiler/app-core/app-data.ts 117 NAMESPACE
src/compiler/fs-watch/fs-watch-rebuild.ts 123 updateCacheFromRebuild
src/compiler/types/validate-primary-package-output-target.ts 61 satisfies
src/compiler/types/validate-primary-package-output-target.ts 61 Record
src/testing/puppeteer/puppeteer-declarations.ts 485 WaitForEventOptions
src/compiler/sys/fetch/write-fetch-success.ts 7 writeFetchSuccessSync

@yigityuce yigityuce mentioned this pull request Mar 15, 2024
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github-actions bot commented Mar 15, 2024

PR built and packed!

Download the tarball here: https://github.com/ionic-team/stencil/actions/runs/8787416896/artifacts/1436300591

If your browser saves files to ~/Downloads you can install it like so:

unzip -d ~/Downloads ~/Downloads/stencil-core-4.16.0-dev.1713802750.af57dae.tgz.zip && npm install ~/Downloads/stencil-core-4.16.0-dev.1713802750.af57dae.tgz

@rwaskiewicz rwaskiewicz added the Resolution: Refine This PR is marked for Jira refinement. We're not working on it - we're talking it through. label Mar 18, 2024
@christian-bromann christian-bromann self-assigned this Apr 1, 2024
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@yigityuce I tried to apply the changes in the reproduction case and ran into this:

demo-bug

I don't think this is intentional, right?

@yigityuce
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yigityuce commented Apr 3, 2024

Hey @christian-bromann

No, definitely shouldn't be like this. Could you pls share your env with me somehow, since I tried the fix by creating a local build and I don't see your case with the configuration below:

stencil-slot-textnode-1

export const config: Config = {
  namespace: 'stencil-v4-sc-slot-fallback-with-textnode',
  extras: {
    experimentalSlotFixes: true,
    experimentalScopedSlotChanges: true,
  },
};

@yigityuce I tried to apply the changes in the reproduction case and ran into this:

demo-bug demo-bug

I don't think this is intentional, right?

@yigityuce
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@christian-bromann any update?

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any update?

Unfortunately not yet. I will have a response for you early next week.

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@yigityuce Hey 👋 so here are my steps to reproduce my finding:

  • clone the reproduction case: git clone https://github.com/yigityuce/stencil-v4-sc-slot-fallback-with-textnode.git
  • apply the changes of the PR to node_modules/@stencil/core/internal/client/index.js in line 1636
  • start the dev server npm start

Can you confirm you see the same behavior?

@yigityuce
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hey @christian-bromann

I tried but unfortunately I cannot reproduce, here are the steps below that I am following. Could you pls try in that way?

git clone https://github.com/yigityuce/stencil.git
cd stencil
git checkout fix/textnode-slot-fallback
npm run clean && npm run build && npm pack

cd ..
git clone https://github.com/yigityuce/stencil-v4-sc-slot-fallback-with-textnode.git
cd stencil-v4-sc-slot-fallback-with-textnode
npm uninstall @stencil/core
npm i ../stencil/stencil-core-{xyz}.tgz.zip
npm run start

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@yigityuce sorry, my bad. It appears that NODE_TYPE is being replaced by the compiler with its actual value and isn't defined copying the changes over. Anyway I was able to now confirm that given changes will fix observed behavior.

Before:
failing

After:
fixed

Before we give this to the team, can we make some updates to the test?

test/wdio/slot-fallback-with-textnode/cmp.test.tsx Outdated Show resolved Hide resolved
test/wdio/slot-fallback-with-textnode/cmp.test.tsx Outdated Show resolved Hide resolved
test/wdio/slot-fallback-with-textnode/cmp.test.tsx Outdated Show resolved Hide resolved
test/wdio/slot-fallback-with-textnode/cmp.test.tsx Outdated Show resolved Hide resolved
test/wdio/slot-fallback-with-textnode/cmp.test.tsx Outdated Show resolved Hide resolved
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@christian-bromann all resolved!

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LGTM 👍

I will have someone from the @ionic-team/stencil team take another look at it.

Thanks!

@christian-bromann christian-bromann added this pull request to the merge queue Apr 22, 2024
Merged via the queue into ionic-team:main with commit 29c69c4 Apr 22, 2024
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Released in Stencil ♨️ v4.17.0

@yigityuce thanks for your contribution!

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