From dfbe92344fe42bd9807e2492d357e68354a81bc8 Mon Sep 17 00:00:00 2001
From: Mikhael Bogdanov <mikhael.bogdanov@jetbrains.com>
Date: Tue, 9 Jan 2018 14:35:50 +0100
Subject: [PATCH] Skip setter accessors for val

---
 .../kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt    | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt
index 5db69e1173b..0de6e7aa255 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/SyntheticAccessorLowering.kt
@@ -197,7 +197,10 @@ class SyntheticAccessorLowering(val context: JvmBackendContext) : FileLoweringPa
             val accessorOwner = (accessor as FunctionDescriptor).containingDeclaration as ClassOrPackageFragmentDescriptor
             val body = IrBlockBodyImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET)
             val isConstructor = accessor.calleeDescriptor is ConstructorDescriptor
-            val accessorForIr = accessorToIrAccessor(isConstructor, accessor, context, accessor.calleeDescriptor as FunctionDescriptor, accessorOwner)
+            val accessorForIr = accessorToIrAccessor(
+                isConstructor, accessor, context,
+                accessor.calleeDescriptor as? FunctionDescriptor ?: return,
+                accessorOwner)
             val syntheticFunction = IrFunctionImpl(
                     UNDEFINED_OFFSET, UNDEFINED_OFFSET, JvmLoweredDeclarationOrigin.SYNTHETIC_ACCESSOR,
                     accessorForIr, body