History

Rich Harris 6fb7b4d265 chore: refactor scheduling (#17805 ) This simplifies the scheduling logic and will likely improve performance in some cases. Previously, there was a global `queued_root_effects` array, and we would cycle through the batch flushing logic as long as it was non-empty. This was a very loosey-goosey approach that was appropriate in the pre-async world, but has gradually become a source of confusion. Now, effects are scheduled within the context of a specific batch. The lifecycle is more rigorous and debuggable. This opens the door to explorations of alternative approaches, such as only scheduling effects when we call `batch.flush()`, which _may_ be better than the eager status quo. The layout of the `Batch` class is extremely chaotic — public/private/static fields/methods are all jumbled up together — and I would like to get a grip of it. In the interests of minimising diff noise that ought to be a follow-up rather than part of this PR. ### Before submitting the PR, please make sure you do the following - [x] It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: https://github.com/sveltejs/rfcs - [x] Prefix your PR title with `feat:`, `fix:`, `chore:`, or `docs:`. - [x] This message body should clearly illustrate what problems it solves. - [ ] Ideally, include a test that fails without this PR but passes with it. - [x] If this PR changes code within `packages/svelte/src`, add a changeset (`npx changeset`). ### Tests and linting - [x] Run the tests with `pnpm test` and lint the project with `pnpm lint` --------- Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>		6 months ago
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README.md	chore: setup changesets (#8668 )	3 years ago
config.json	chore: enter changeset prerelease mode	3 years ago
html-contenteditable-fix.md	fix: clean up externally-added DOM nodes in {@html} on re-render (#17853 )	6 months ago
nasty-friends-crash.md	fix: handle asnyc updates within pending boundary (#17873 )	6 months ago
ninety-kings-attend.md	perf: avoid re-traversing the effect tree after `$:` assignments (#17848 )	6 months ago
slick-bars-train.md	chore: refactor scheduling (#17805 )	6 months ago

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