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Update packages/svelte/src/internal/client/reactivity/sources.js

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pull/18127/head
Simon H 23 hours ago committed by GitHub
parent 1e5aa2fe1f
commit 57b892e033
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1 changed files with 3 additions and 1 deletions
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packages/svelte/src/internal/client/reactivity/sources.js
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@ -361,7 +361,9 @@ function mark_reactions(signal, status, updated_during_traversal) {
count_deps += length; count_deps += length;
// Activate the `seen` Set if we think from the unusually high number of deps that // Activate the `seen` Set if we think from the unusually high number of deps that
// there might be cycles in the graph, to avoid repeated lookups for reactions // there might be cycles in the graph, to avoid repeated lookups for reactions
if (count_deps > 1000000 && seen === null) seen = new Set(); // Example: https://github.com/sveltejs/svelte/issues/16658 has a graph with one source
// reaching ~10000 distinct deriveds/effects each, resulting in 65 million walks through repeated visits.
if (count_deps > 100000 && seen === null) seen = new Set();
if (seen !== null) { if (seen !== null) {
if (seen.has(signal)) return; if (seen.has(signal)) return;

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