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⚡ Bolt: Cache WasmJs localStorage manifest in memory#32

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bolt/wasmjs-localstorage-cache-15164248686762740693
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⚡ Bolt: Cache WasmJs localStorage manifest in memory#32
himattm wants to merge 1 commit intomainfrom
bolt/wasmjs-localstorage-cache-15164248686762740693

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@himattm himattm commented Apr 23, 2026

💡 What: Caches the parsed JSON manifest in memory using by lazy for LocalStorageThemeCache. Added .jules/bolt.md entry.
🎯 Why: JSON parsing in Kotlin Multiplatform for WasmJs targets carries significant overhead. Parsing the same JSON manifest from localStorage repeatedly causes a measurable performance bottleneck.
📊 Impact: Reduces redundant localStorage reads and JSON deserialization entirely for repeated manifest accesses.
🔬 Measurement: Verify tests run properly (./gradlew :halogen-engine:wasmJsTest). Memory accesses are now O(1) in-memory lookups instead of I/O + deserialization.


PR created automatically by Jules for task 15164248686762740693 started by @himattm

💡 What: Caches the parsed JSON manifest in memory using `by lazy` for `LocalStorageThemeCache`. Added `.jules/bolt.md` entry.
🎯 Why: JSON parsing in Kotlin Multiplatform for WasmJs targets carries significant overhead. Parsing the same JSON manifest from localStorage repeatedly causes a measurable performance bottleneck.
📊 Impact: Reduces redundant localStorage reads and JSON deserialization entirely for repeated manifest accesses.
🔬 Measurement: Verify tests run properly (`./gradlew :halogen-engine:wasmJsTest`). Memory accesses are now O(1) in-memory lookups instead of I/O + deserialization.

Co-authored-by: himattm <6266621+himattm@users.noreply.github.com>
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himattm commented May 7, 2026

Closing as superseded by #35, which is the latest cleaned LocalStorageThemeCache manifest-cache optimization merged to main. Keeping one canonical implementation avoids merging multiple generated variants of the same change.

@himattm himattm closed this May 7, 2026
@himattm himattm deleted the bolt/wasmjs-localstorage-cache-15164248686762740693 branch May 7, 2026 13:24
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Closing as superseded by #35, which is the latest cleaned LocalStorageThemeCache manifest-cache optimization merged to main. Keeping one canonical implementation avoids merging multiple generated variants of the same change.

Understood. Acknowledging that this work is now superseded by #35 and stopping work on this task.

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