chore(deps): update dependency svelte to v5.57.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
svelte (source)	5.55.9 → 5.57.0

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Release Notes

sveltejs/svelte (svelte)

v5.57.0

Compare Source

Minor Changes

• feat: export RenderOutput, SyncRenderOutput, Csp and Sha256Source from svelte/server (#​18648)

• feat: add has function to createContext (#​18472)

• feat: support defaultValue on <select> (#​18591)

• feat: add getOrInsert/getOrInsertComputed to SvelteMap (#​18728)

Patch Changes

• fix: block template store subscriptions on the promise that assigns the store (#​18582)

• fix: route $derived teardown errors through invoke_error_boundary (#​18486)

• fix: track SvelteDate snapshots in reactions (#​18700)

• fix: remove <svelte:head> anchors on unmount (#​18697)

• fix: warn on undeclared shorthand event handlers on <svelte:window>, <svelte:document> and <svelte:body> (#​18480)

• perf: reuse the cached value in the <option>/<select> value guard (#​18713)

• fix: prevent malformed AST output for <select> with static value attribute (#​18449)

• fix: apply ownership mutation ignores to binding assignments (#​18718)

• fix: prevent onoutroend from firing twice when compilerOptions.hmr is true (#​18655)

• fix: preserve whitespace after inline elements when printing (#​18685)

• perf: fold SSR block-open markers into the branch's first push (#​18712)

• fix: run onDestroy callbacks when a server render throws (#​18585)

• fix: report derived_invalid_export for export let x = $derived(...) in runes mode (#​18692)

• fix: never apply class hash to elements inside <svelte:head> (#​18160)

• fix: keep defaultChecked on hydrated radio inputs with spread attributes (#​18701)

• fix: accept onfocusin/onfocusout in a11y_mouse_events_have_key_events (#​18689)

• perf: O(n²)→O(n) Map lookups for legacy $: reactive statement ordering (#​18602)

• fix: distinct memoizer on style/class directives (#​18466)

• fix: measure nested transitions before applying their starting styles (#​18647)

• fix: don't turn component instances stored in $state into state proxies (#​18646)

• perf: emit $.only_child for elements with a single child (#​18717)

• fix: omit bind:focused from SSR output (it has no HTML attribute) (#​18724)

• fix: more robust rendering of Svelte custom element slots (#​18710)

• perf: optimize simple object destructuring in @const tags (#​18390)

• fix: properly apply static textarea value attribute during CSR (#​18727)

• fix: end a restored reaction context at the end of its synchronous segment (#​18694)

• fix: keep the dependencies of a reaction that throws, so deriveds it read are neither leaked nor stuck in their error (#​18703)

• fix: don't resurrect outroing elements when an ancestor block is paused and resumed (#​18431)

• perf: use $.comment() for single-comment templates (#​18714)

• chore: move @types/trusted-types to devDependencies (#​18730)

• perf: store setters cache as Set instead of Array (#​18251)

• fix: transform derived assignments and select function bindings correctly during server-side rendering (#​18669)

• fix: keep boolean attributes with an empty string value when rendering attribute objects on the server (#​18721)

• fix: sync SvelteURL port signal when the protocol setter clears the port (#​18705)

• fix: block declaration tags and {@const} on async values read inside closures (#​18533)

• fix: avoid css tree-shaking for exported Snippet (#​18540)

• perf: treat <img loading> as a static element again (#​18711)

• fix: prevent selectedcontent mutation from changing the selected option (#​18495)

• fix: avoid NaN keyframe values in slide transition for elements without a layout box (#​18430)

• fix: preserve line feed character references in attribute values (#​18691)

• fix: decode uppercase-X hex numeric character references (&#X...;) (#​18708)

• chore: clarify when $effect.pre runs relative to DOM updates (#​18534)

• fix: scope SSR boundary failed snippets to their boundary (#​18593)

v5.56.10

Compare Source

Patch Changes

• fix: preserve CSS escape sequences when printing selectors (#​18667)

• fix: parse :nth-child(2n of.foo) where of is not followed by whitespace (#​18611)

• fix: transform expressions inside labeled statements during server compilation (#​18617)

• docs: clarify that context lookup includes the current component and all ancestors (#​18581)

• fix: apply CSS custom properties with falsy values on components (#​18634)

• fix: correctly print {#await ... catch x} et al (#​18645)

• fix: ignore comments of Program node during migration script (#​18656)

• fix: reliably resolve append_style to its correct root (#​18614)

• fix: clean up removed capture event handlers from spread attributes (#​18618)

• fix: don't corrupt renderer type during SSR's legacy bind: retry loop (#​18616)

• fix: treat concise arrow function bodies as implicit returns when calculating blockers (#​18613)

• fix: give effect teardowns the value from before the first write in a flush (#​18620)

• fix: avoid double-calling a derived reference when destructuring $derived of another $derived during server-side rendering (#​18668)

• fix: preserve namespaces in CSS type selectors (#​18678)

• fix: increment private state fields through a non-this receiver (#​18622)

• chore: deduplicate client and server context helpers (#​18580)

• fix: release last_propagated_event after event propagation settles so it no longer retains the last event's target subtree (#​18569)

• fix: allow custom elements to receive async values as props (#​18661)

• fix: strip comments from inline style values in linear time (#​18553)

• fix: prevent declaration comments from breaking server derived references (#​18641)

• perf: make async blocker analysis scale linearly with the number of top-level references (#​18549)

• fix: preserve short-circuiting for logical assignments to private state fields (#​18594)

v5.56.9

Compare Source

Patch Changes

• fix: skip controlled each fast path while another batch is pending (#​18625)

• fix: better whitespace handling inside printer (#​18638)

• fix: don't duplicate comments in attributes (#​18636)

• fix: preserve CSS comments in the AST printer (#​18637)

v5.56.8

Compare Source

Patch Changes

• fix: call onerror and provide a working reset when hydrating a failed boundary (#​18556)

• fix: preserve select selection when spread attributes omit value (#​18561)

v5.56.7

Compare Source

Patch Changes

• chore: provide indent option for print (#​18474)

v5.56.6

Compare Source

Patch Changes

• perf: skip unnecessary blocker analysis when compiling components without top-level await (#​18548)

• fix: rerun derived that had an abort controller on reconnection (#​18551)

v5.56.5

Compare Source

Patch Changes

• chore: drop dead code that make TSGO fail (#​18496)

• fix: don't (re)connect deriveds when read inside branch/root effects (#​18527)

• fix: skip unnecessary derived effect in earlier batch (#​18525)

• fix: avoid declaration tag warning in event handlers (#​18500)

• fix: abort deriveds own AbortSignal when it disconnects (#​18400)

• fix: ensure $state.eager() is correctly transormed for SSR output (#​18530)

• fix: correctly transform declaration tags during SSR (#​18492)

• fix: transform computed keys in keyed {#each} destructuring patterns (#​18521)

• fix: chain preprocessor sourcemaps with an empty sources[0] instead of dropping them (#​18518)

• fix: clear previous_task reference after abort in Tween to prevent memory leak on interrupted tweens (#​18541)

• fix: don't treat declaration tags as parts inside each blocks (#​18507)

v5.56.4

Compare Source

Patch Changes

• fix: include wrapping parentheses in {@const} declarator end position (#​18436)

• fix: always unset reactivity context after restoring it (#​18453)

• fix: don't notify searchParams subscribers when the URL changes without affecting the search string (#​18425)

• fix: strip ? from optional parameters in <script lang="ts"> so generated JavaScript is valid (#​18448)

v5.56.3

Compare Source

Patch Changes

• fix: ignore errors that occur in destroyed effects (#​18384)

• fix: type BigInts in $state.snapshot(...) return values (#​18388)

v5.56.2

Compare Source

Patch Changes

• fix: properly track effect end node for async sibling component (#​18371)

• fix: prevent false-positive reactivity loss warning (#​18373)

• chore: bump esrap dependency (#​18372)

• fix: ignore declaration tags for animation directive (#​18366)

• fix: reject pending async deriveds on discard (#​18308)

v5.56.1

Compare Source

Patch Changes

• fix: error at compile time on duplicate snippet/declaration tag definitions (#​18351)

• fix: parse declaration tag contents more robustly (#​18353)

• fix: correctly transform references to earlier declarators in a declaration tag (e.g. {let a = $state(0), b = $derived(a * 2)}) (#​18348)

• fix: avoid spurious state_referenced_locally warnings for $derived declarations in declaration tags (#​18348)

• fix: tolerate whitespace before let/const in declaration tags (#​18348)

• fix: prevent infinite loop when a tag's expression ends with a trailing / at the end of the input (#​18350)

• fix: more robust parsing of declaration tags with regards to type (#​18330)

• fix: preserve newlines in spread input values when the type attribute is applied after value (#​18345)

• fix: update SvelteURLSearchParams when setting duplicate keys to the same joined value (#​18336)

• fix: check references for blockers on server, too (#​18352)

v5.56.0

Compare Source

Minor Changes

• feat: allow declarations in the template (#​18282)

Patch Changes

• perf: use createElement instead of createElementNS for HTML elements (#​18262)

• perf: store current_sources as a Set for O(1) membership checks (#​18278)

• perf: deduplicate identical hoisted templates within a component (#​18320)

• perf: hoist rest_props exclude list as a module-scope Set (#​18252)

v5.55.10

Compare Source

Patch Changes

• fix: unlink errored and otherwise finished batch (#​18264)

• perf: walk composedPath() directly in delegated event propagation (#​18268)

• fix: transfer effects when merging batches (#​18254)

• fix: allow $derived(await ...) in disconnected effect roots (#​18273)

• fix: remove temporary raw-text hydration markers (#​18269)

• fix: propagate async @const blockers through closure references so template expressions like {(() => host)()} correctly wait for the awaited value (#​18309)

• fix: properly unlink batches (#​18298)

• fix: settle discarded batch (#​18290)

• fix: declare let: directives before {@const} declarations on slotted elements (#​18271)

• fix: resume outro-ed branches if they were kept around (#​18291)

• fix: avoid waterfall-warning when async resolves to same value (#​18297)

• fix: correctly coordinate component-level effects inside async blocks (#​18260)

• fix: make unnecessary commit work less likely (#​18263)

• chore: add tag name to a11y_click_events_have_key_events warning (#​18272)

• fix: catch rejected promises while merging/committing (#​18266)

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✅ Benchmark passed

Query time (limit 35s) over 7 runs.

Stage	Median	Mean	Stddev
Read	0.88s	0.95s	0.14s
Parse	132.9s	133.56s	2.58s
Query	34.18s	34.34s	0.56s