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fix: unstate object in Svelte 5 dev mode #12095

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fix: unstate object in Svelte 5 dev mode #12095

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f077d2f
fix: unstate object in Svelte 5 dev mode
dummdidumm Apr 9, 2024
7b546dc
Update packages/kit/src/runtime/client/client.js
dummdidumm Apr 10, 2024
33c944b
Update packages/kit/src/runtime/client/client.js
dummdidumm Apr 10, 2024
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5 changes: 5 additions & 0 deletions .changeset/nasty-lamps-develop.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@sveltejs/kit": patch
---

fix: unstate object in Svelte 5 dev mode before checking serializability
27 changes: 20 additions & 7 deletions packages/kit/src/runtime/client/client.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import { BROWSER, DEV } from 'esm-env';
import { onMount, tick } from 'svelte';
import * as svelte from 'svelte';
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import {
add_data_suffix,
decode_params,
Expand Down Expand Up @@ -45,6 +45,9 @@ import { HttpError, Redirect, SvelteKitError } from '../control.js';
import { INVALIDATED_PARAM, TRAILING_SLASH_PARAM, validate_depends } from '../shared.js';
import { get_message, get_status } from '../../utils/error.js';
import { writable } from 'svelte/store';
import { VERSION } from 'svelte/compiler';
Comment on lines 47 to +48

@benmccann benmccann Apr 10, 2024

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I'd put these two lines up with the other svelte import just to keep things a little organized


const is_svelte_5 = VERSION.startsWith('5.');
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let errored = false;

Expand Down Expand Up @@ -1413,7 +1416,7 @@ async function navigate({
const { activeElement } = document;

// need to render the DOM before we can scroll to the rendered elements and do focus management
await tick();
await svelte.tick();

// we reset scroll before dealing with focus, to avoid a flash of unscrolled content
const scroll = popped ? popped.scroll : noscroll ? scroll_state() : null;
Expand Down Expand Up @@ -1627,7 +1630,7 @@ function handle_error(error, event) {
* @param {T} callback
*/
function add_navigation_callback(callbacks, callback) {
onMount(() => {
svelte.onMount(() => {
callbacks.push(callback);

return () => {
Expand Down Expand Up @@ -1861,7 +1864,12 @@ export function pushState(url, state) {
if (DEV) {
try {
// use `devalue.stringify` as a convenient way to ensure we exclude values that can't be properly rehydrated, such as custom class instances
devalue.stringify(state);
devalue.stringify(
is_svelte_5
? // @ts-expect-error
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svelte.unstate(state)
: state
);
} catch (error) {
// @ts-expect-error
throw new Error(`Could not serialize state${error.path}`);
Expand Down Expand Up @@ -1901,7 +1909,12 @@ export function replaceState(url, state) {
if (DEV) {
try {
// use `devalue.stringify` as a convenient way to ensure we exclude values that can't be properly rehydrated, such as custom class instances
devalue.stringify(state);
devalue.stringify(
is_svelte_5
? // @ts-expect-error
svelte.unstate(state)
: state
);
} catch (error) {
// @ts-expect-error
throw new Error(`Could not serialize state${error.path}`);
Expand Down Expand Up @@ -1955,7 +1968,7 @@ export async function applyAction(result) {

root.$set(navigation_result.props);

tick().then(reset_focus);
svelte.tick().then(reset_focus);
}
} else if (result.type === 'redirect') {
_goto(result.location, { invalidateAll: true }, 0);
Expand All @@ -1969,7 +1982,7 @@ export async function applyAction(result) {
});

// ...so that setting the `form` prop takes effect and isn't ignored
await tick();
await svelte.tick();
root.$set({ form: result.data });

if (result.type === 'success') {
Expand Down