From ac507e721cd448342e0dc5732f2d651f4553e9a6 Mon Sep 17 00:00:00 2001
From: Mikhail Zarechenskiy <mikhail.zarechenskiy@jetbrains.com>
Date: Mon, 3 Jul 2017 20:48:39 +0300
Subject: [PATCH] [NI] Do not add non-dynamic candidates when there is dynamic
 extension

---
 .../calls/model/KotlinResolverContext.kt        | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/model/KotlinResolverContext.kt b/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/model/KotlinResolverContext.kt
index bbfc3b7e479..52e7cf192b0 100644
--- a/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/model/KotlinResolverContext.kt
+++ b/compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/model/KotlinResolverContext.kt
@@ -22,13 +22,12 @@ import org.jetbrains.kotlin.resolve.calls.components.*
 import org.jetbrains.kotlin.resolve.calls.inference.components.ConstraintInjector
 import org.jetbrains.kotlin.resolve.calls.inference.components.ResultTypeResolver
 import org.jetbrains.kotlin.resolve.calls.tasks.ExplicitReceiverKind
-import org.jetbrains.kotlin.resolve.calls.tower.CandidateFactory
-import org.jetbrains.kotlin.resolve.calls.tower.CandidateWithBoundDispatchReceiver
-import org.jetbrains.kotlin.resolve.calls.tower.HiddenDescriptor
-import org.jetbrains.kotlin.resolve.calls.tower.ImplicitScopeTower
+import org.jetbrains.kotlin.resolve.calls.tower.*
+import org.jetbrains.kotlin.resolve.descriptorUtil.hasDynamicExtensionAnnotation
 import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValueWithSmartCastInfo
 import org.jetbrains.kotlin.types.ErrorUtils
 import org.jetbrains.kotlin.types.TypeSubstitutor
+import org.jetbrains.kotlin.types.isDynamic
 
 
 class KotlinCallContext(
@@ -82,6 +81,16 @@ class SimpleCandidateFactory(val callContext: KotlinCallContext, val kotlinCall:
             candidateDiagnostics.add(HiddenDescriptor)
         }
 
+        if (extensionReceiver != null) {
+            val parameterIsDynamic = towerCandidate.descriptor.extensionReceiverParameter!!.value.type.isDynamic()
+            val argumentIsDynamic = extensionReceiver.receiverValue.type.isDynamic()
+
+            if (parameterIsDynamic != argumentIsDynamic ||
+                (parameterIsDynamic && !towerCandidate.descriptor.hasDynamicExtensionAnnotation())) {
+                candidateDiagnostics.add(HiddenExtensionRelatedToDynamicTypes)
+            }
+        }
+
         return SimpleKotlinResolutionCandidate(callContext, kotlinCall, explicitReceiverKind, dispatchArgumentReceiver, extensionArgumentReceiver,
                                                towerCandidate.descriptor, null, candidateDiagnostics)
     }