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[FIR] Unwrap substitution overrides for multiple default values

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Otherwise, duplicate diagnostics may be reported on
subtypes of the type that actually declares the
problematic override.
This commit is contained in:
Nikolay Lunyak
2023-09-18 13:18:01 +03:00
committed by Space Team
parent 76fa812949
commit 2801db0e59
3 changed files with 6 additions and 17 deletions
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compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirMultipleDefaultsInheritedFromSupertypesChecker.kt
+5 -2
View File
@@ -20,16 +20,19 @@ import org.jetbrains.kotlin.fir.isSubstitutionOverride
import org.jetbrains.kotlin.fir.scopes.processAllFunctions
import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirValueParameterSymbol
import org.jetbrains.kotlin.fir.unwrapSubstitutionOverrides
import org.jetbrains.kotlin.name.Name
object FirMultipleDefaultsInheritedFromSupertypesChecker : FirRegularClassChecker() {
override fun check(declaration: FirRegularClass, context: CheckerContext, reporter: DiagnosticReporter) {
declaration.unsubstitutedScope(context).processAllFunctions {
if (it.containingClassLookupTag() != declaration.symbol.toLookupTag()) {
val originalIfSubstitutionOverride = it.unwrapSubstitutionOverrides()
if (originalIfSubstitutionOverride.containingClassLookupTag() != declaration.symbol.toLookupTag()) {
return@processAllFunctions
}
checkFunction(declaration, it, context, reporter)
checkFunction(declaration, originalIfSubstitutionOverride, context, reporter)
}
}