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improved annotation caching and error range handling for highlighting

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This commit is contained in:
Sergey Chernov 2025-12-03 16:27:05 +01:00
parent c63d643469
commit a3b8dbd9d8
1 changed files with 6 additions and 2 deletions
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8
lyng-idea/src/main/kotlin/net/sergeych/lyng/idea/annotators/LyngExternalAnnotator.kt
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@ -54,7 +54,9 @@ class LyngExternalAnnotator : ExternalAnnotator<LyngExternalAnnotator.Input, Lyn
override fun collectInformation(file: PsiFile): Input? {
val doc: Document = file.viewProvider.document ?: return null
val prev = file.getUserData(CACHE_KEY)?.spans
val cached = file.getUserData(CACHE_KEY)
// Fast fix (1): reuse cached spans only if they were computed for the same modification stamp
val prev = if (cached != null && cached.modStamp == doc.modificationStamp) cached.spans else null
return Input(doc.text, doc.modificationStamp, prev)
}
@ -76,9 +78,11 @@ class LyngExternalAnnotator : ExternalAnnotator<LyngExternalAnnotator.Input, Lyn
val off = try { source.offsetOf(e.pos) } catch (_: Throwable) { -1 }
val start0 = off.coerceIn(0, text.length.coerceAtLeast(0))
val (start, end) = expandErrorRange(text, start0)
// Fast fix (5): clear cached highlighting after the error start position
val trimmed = collectedInfo.previousSpans?.filter { it.end <= start } ?: emptyList()
return Result(
collectedInfo.modStamp,
collectedInfo.previousSpans ?: emptyList(),
trimmed,
Error(start, end, e.errorMessage)
)
}