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Avoid creating a new array inside doResolve. #427

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Jul 17, 2024
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Avoid creating a new array inside doResolve. #427

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6 changes: 5 additions & 1 deletion lib/Resolver.js
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Original file line number Diff line number Diff line change
Expand Up @@ -692,7 +692,11 @@ class Resolver {
}
newStack.add(stackEntry);
} else {
newStack = new Set([stackEntry]);
// creating a set with new Set([item])
// allocates a new array that has to be garbage collected
// this is an EXTREMELY hot path, so let's avoid it
newStack = new Set();
newStack.add(stackEntry);
}
this.hooks.resolveStep.call(hook, request);

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