The current rendering/hydration implementation leads to an early Maximum call stack size exceeded
#17659
Maximum call stack size exceededDevelopment PR
This reduces if block nesting similar to how we did it in #15250 (which got lost during the await feature introduction): If the if expression doesn't contain an await expression or is not dependent on a blocker that is not already resolved, then we can avoid creating a separate $.if() statement. The one trade-off is that we'll do re-invocations for all the conditions leading up to the condition that matches. Therefore non-simple if expressions are wrapper in $.derived to avoid excessive recomputations.
closes #17659 (~320 markers in prod mode possible now; less in dev because of our "wrap this component with devtime info" method) helps with #15200
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Issue
Describe the bug
I’m encountering a Maximum call stack size exceeded error at a relatively shallow component nesting depth.
The issue became worse starting with [email protected]; before that, it only resulted in a hydration warning.
Reproduction
(42) (600+) Vue (600+) Real world component
Logs
System Info
System:
OS: Linux 6.12 cpe:/o:nixos:nixos:25.11 25.11 (Xantusia)
CPU: (12) x64 Intel(R) Core(TM) i5-10400F CPU @ 2.90GHz
Memory: 2.36 GB / 15.56 GB
Container: Yes
Shell: 5.3.3 - /run/current-system/sw/bin/bash
Binaries:
Node: 24.11.1 - /nix/store/4l88l3qm9qbvizwfy32rfjpzz2nh1x4j-nodejs-24.11.1/bin/node
npm: 11.6.2 - /nix/store/4l88l3qm9qbvizwfy32rfjpzz2nh1x4j-nodejs-24.11.1/bin/npm
pnpm: 10.26.1 - /nix/store/0mkcl4bgin1q6r1g0zyj3drynpa300ir-pnpm-10.26.1/bin/pnpm
Browsers:
Brave Browser: 144.1.86.146
npmPackages:
svelte: catalog: => 5.48.0Severity
annoyance
Info
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