fix: preserve SSR context when block expressions contain await

[Rich-Harris]

We don't worry about preserving context for ordinary expressions ({await x}) because nothing comes after them. But we do need to preserve context for things like if blocks, because they can contain calls (to push, push_element etc) that need to be able to attach to the correct context.

This fixes it. Going to self-merge to unblock SvelteKit async SSR exploration

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🦋 Changeset detected

Latest commit: b414de0

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-svelte-16791-svelte.vercel.app/

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Playground

pnpm add https://pkg.pr.new/svelte@16791

[wiesson]

Since this PR, I get "Error: Could not get the request store." on every SSR render with remote functions - not sure if I need to adapt sth. More interesting, it happens on dev, not prod

usage

getMembers is a remote function/query

let members = $derived(getMembers({ organizationId, teamId, searchQuery, suspended }));

error:

Error: Could not get the request store. This is an internal error.
    at get_request_store (file:path-to-project/node_modules/.pnpm/@[email protected]_@[email protected]_@[email protected]_svelte_023f488ff8fb3407a93984b212a90d71/node_modules/@sveltejs/kit/src/exports/internal/event.js:48:9)
    at wrapper (../../node_modules/.pnpm/@[email protected]_@[email protected]_@[email protected]_svelte_023f488ff8fb3407a93984b212a90d71/node_modules/@sveltejs/kit/src/runtime/app/server/remote/query.js:73:45)
    at /Users/wiese/Dev/tm/tourvy-app-main/apps/tourvy/src/lib/components/features/members/members-list.svelte:22:35
    at Renderer.child (../../node_modules/.pnpm/[email protected]/node_modules/svelte/src/internal/server/renderer.js:112:18)
    at Renderer.component (../../node_modules/.pnpm/[email protected]/node_modules/svelte/src/internal/server/renderer.js:137:22)
    at Members_list (src/lib/components/features/members/members-list.svelte:21:14)
    at eval (src/routes/(app)/[teamSlug]/members/+page.svelte:22:37)
    at Renderer.child (../../node_modules/.pnpm/[email protected]/node_modules/svelte/src/internal/server/renderer.js:112:18)
    at Renderer.component (../../node_modules/.pnpm/[email protected]/node_modules/svelte/src/internal/server/renderer.js:137:22)
    at _page (src/routes/(app)/[teamSlug]/members/+page.svelte:17:14)

// edit: I can't say since when it's happening, I need to debug a little further.

[Antonio-Bennett]

@wiesson pretty sure you're encountering this issue. TLDR - If you're using Sveltekit Async SSR isn't supported yet

[wiesson]

Ok, I'll just wait