[FIR2IR] Add more clear exception about absent setter (see KT-42496)

2020-10-07 09:31:07 +03:00
parent aa4a042612
commit e49f881e7f
1 changed files with 2 additions and 1 deletions
@@ -146,7 +146,8 @@ private fun FirCallableSymbol<*>.toSymbol(declarationStorage: Fir2IrDeclarationS
            val delegateSymbol = if (preferGetter) {
                syntheticProperty.getter.delegate.symbol
            } else {
-                syntheticProperty.setter!!.delegate.symbol
+                syntheticProperty.setter?.delegate?.symbol
+                    ?: throw AssertionError("Written synthetic property must have a setter")
            }
            delegateSymbol.deepestMatchingOverriddenSymbol().toSymbol(declarationStorage, preferGetter)
        } ?: declarationStorage.getIrPropertySymbol(this)