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[FIR] Prevent potential exponent complexity in isValidTypeParameterFromOuterDeclaration

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This commit is contained in:
Ivan Kochurkin
2021-11-20 16:23:34 +03:00
committed by TeamCityServer
parent 3beb447e85
commit aff885bcd1
1 changed files with 6 additions and 0 deletions
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compiler/fir/semantics/src/org/jetbrains/kotlin/fir/resolve/DeclarationUtils.kt
+6
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@@ -41,7 +41,13 @@ fun isValidTypeParameterFromOuterDeclaration(
return true // Extra check is required because of classDeclaration will be resolved later return true // Extra check is required because of classDeclaration will be resolved later
} }
val visited = mutableSetOf<FirDeclaration>()
fun containsTypeParameter(currentDeclaration: FirDeclaration?): Boolean { fun containsTypeParameter(currentDeclaration: FirDeclaration?): Boolean {
if (currentDeclaration == null || !visited.add(currentDeclaration)) {
return false
}
if (currentDeclaration is FirTypeParameterRefsOwner) { if (currentDeclaration is FirTypeParameterRefsOwner) {
if (currentDeclaration.typeParameters.any { it.symbol == typeParameterSymbol }) { if (currentDeclaration.typeParameters.any { it.symbol == typeParameterSymbol }) {
return true return true