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workaround for IDEA's issue that throws an exception when using union() on a LocalSearchScope with no elements (EA-82063 - AIOOBE: GlobalSearchScope.union)

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This commit is contained in:
Dmitry Jemerov
2016-08-09 20:32:22 +02:00
parent 180f70b573
commit f08a7f14e0
2 changed files with 12 additions and 1 deletions
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idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/ideaExtensions/KotlinReferencesSearcher.kt
+2 -1
View File
@@ -36,6 +36,7 @@ import org.jetbrains.kotlin.idea.references.KtSimpleNameReference
import org.jetbrains.kotlin.idea.search.KOTLIN_NAMED_ARGUMENT_SEARCH_CONTEXT
import org.jetbrains.kotlin.idea.search.allScope
import org.jetbrains.kotlin.idea.search.effectiveSearchScope
import org.jetbrains.kotlin.idea.search.unionSafe
import org.jetbrains.kotlin.idea.search.usagesSearch.dataClassComponentFunction
import org.jetbrains.kotlin.idea.search.usagesSearch.getClassNameForCompanionObject
import org.jetbrains.kotlin.idea.search.usagesSearch.getSpecialNamesToSearch
@@ -80,7 +81,7 @@ class KotlinReferencesSearcher : QueryExecutorBase<PsiReference, ReferencesSearc
val effectiveSearchScope = runReadAction {
val elements = if (unwrappedElement is KtDeclaration) unwrappedElement.toLightElements() else listOf(unwrappedElement)
elements.fold(queryParameters.effectiveSearchScope) { scope, e -> scope.union(queryParameters.effectiveSearchScope(e)) }
elements.fold(queryParameters.effectiveSearchScope) { scope, e -> scope.unionSafe(queryParameters.effectiveSearchScope(e)) }
}
val refFilter: (PsiReference) -> Boolean = when {
idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/searchUtil.kt
+10
View File
@@ -32,6 +32,16 @@ infix fun SearchScope.or(otherScope: SearchScope): SearchScope = union(otherScop
operator fun SearchScope.minus(otherScope: GlobalSearchScope): SearchScope = this and !otherScope
operator fun GlobalSearchScope.not(): GlobalSearchScope = GlobalSearchScope.notScope(this)
fun SearchScope.unionSafe(other: SearchScope): SearchScope {
if (this is LocalSearchScope && this.scope.isEmpty()) {
return other
}
if (other is LocalSearchScope && other.scope.isEmpty()) {
return this
}
return this.union(other)
}
fun Project.allScope(): GlobalSearchScope = GlobalSearchScope.allScope(this)
fun Project.projectScope(): GlobalSearchScope = GlobalSearchScope.projectScope(this)