Adapt changes in IDE after moving SAM adapters to synthetic scope

The main change is that now to get static sam adapters one should do it using synthetic scopes and static scope of container

compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt

@@ -180,6 +180,9 @@ class JavaSyntheticPropertiesScope(storageManager: StorageManager, private val l
     override fun getSyntheticStaticFunctions(scope: ResolutionScope, name: Name, location: LookupLocation): Collection<FunctionDescriptor>
             = emptyList()
 
+    override fun getSyntheticStaticFunctions(scope: ResolutionScope): Collection<FunctionDescriptor>
+            = emptyList()
+
     private fun collectSyntheticPropertiesByName(result: SmartList<PropertyDescriptor>?, type: TypeConstructor, name: Name, processedTypes: MutableSet<TypeConstructor>?, location: LookupLocation): SmartList<PropertyDescriptor>? {
         if (processedTypes != null && !processedTypes.add(type)) return result
 

compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/SamAdapterFunctionsScope.kt

@@ -122,6 +122,10 @@ class SamAdapterFunctionsScope(
         return scope.getContributedFunctions(name, location).mapNotNull { samAdapterForStaticFunction(it) }
     }
 
+    override fun getSyntheticStaticFunctions(scope: ResolutionScope): Collection<FunctionDescriptor> {
+        return scope.getContributedDescriptors(DescriptorKindFilter.FUNCTIONS).mapNotNull { samAdapterForStaticFunction(it) }
+    }
+
     private class MyFunctionDescriptor(
             containingDeclaration: DeclarationDescriptor,
             original: SimpleFunctionDescriptor?,

core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/SyntheticScopes.kt

@@ -26,11 +26,11 @@ import org.jetbrains.kotlin.types.KotlinType
 interface SyntheticScope {
     fun getSyntheticExtensionProperties(receiverTypes: Collection<KotlinType>, name: Name, location: LookupLocation): Collection<PropertyDescriptor>
     fun getSyntheticMemberFunctions(receiverTypes: Collection<KotlinType>, name: Name, location: LookupLocation): Collection<FunctionDescriptor>
-
     fun getSyntheticStaticFunctions(scope: ResolutionScope, name: Name, location: LookupLocation): Collection<FunctionDescriptor>
 
     fun getSyntheticExtensionProperties(receiverTypes: Collection<KotlinType>): Collection<PropertyDescriptor>
     fun getSyntheticMemberFunctions(receiverTypes: Collection<KotlinType>): Collection<FunctionDescriptor>
+    fun getSyntheticStaticFunctions(scope: ResolutionScope): Collection<FunctionDescriptor>
 }
 
 interface SyntheticScopes {
@@ -56,3 +56,6 @@ fun SyntheticScopes.collectSyntheticExtensionProperties(receiverTypes: Collectio
 
 fun SyntheticScopes.collectSyntheticMemberFunctions(receiverTypes: Collection<KotlinType>)
         = scopes.flatMap { it.getSyntheticMemberFunctions(receiverTypes) }
+
+fun SyntheticScopes.collectSyntheticStaticFunctions(scope: ResolutionScope)
+        = scopes.flatMap { it.getSyntheticStaticFunctions(scope) }

idea/ide-common/src/org/jetbrains/kotlin/idea/codeInsight/ReferenceVariantsHelper.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2016 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,6 +37,7 @@ import org.jetbrains.kotlin.resolve.descriptorUtil.isExtension
 import org.jetbrains.kotlin.resolve.isHiddenInResolution
 import org.jetbrains.kotlin.resolve.scopes.*
 import org.jetbrains.kotlin.resolve.scopes.receivers.ClassQualifier
+import org.jetbrains.kotlin.resolve.scopes.utils.collectAllFromMeAndParent
 import org.jetbrains.kotlin.resolve.scopes.utils.collectDescriptorsFiltered
 import org.jetbrains.kotlin.resolve.scopes.utils.memberScopeAsImportingScope
 import org.jetbrains.kotlin.synthetic.SyntheticJavaPropertyDescriptor
@@ -181,10 +182,11 @@ class ReferenceVariantsHelper(
 
         val descriptors = LinkedHashSet<DeclarationDescriptor>()
 
+        val filterWithoutExtensions = kindFilter exclude DescriptorKindExclude.Extensions
         if (receiverExpression != null) {
             val qualifier = bindingContext[BindingContext.QUALIFIER, receiverExpression]
             if (qualifier != null) {
-                descriptors.addAll(qualifier.staticScope.getDescriptorsFiltered(kindFilter exclude DescriptorKindExclude.Extensions, nameFilter))
+                descriptors.addAll(qualifier.staticScope.collectStaticMembers(resolutionFacade, filterWithoutExtensions, nameFilter))
             }
 
             val explicitReceiverTypes = if (useReceiverType != null) {
@@ -202,7 +204,10 @@ class ReferenceVariantsHelper(
             descriptors.processAll(implicitReceiverTypes, implicitReceiverTypes, resolutionScope, callType, kindFilter, nameFilter)
 
             // add non-instance members
-            descriptors.addAll(resolutionScope.collectDescriptorsFiltered(kindFilter exclude DescriptorKindExclude.Extensions, nameFilter))
+            descriptors.addAll(resolutionScope.collectDescriptorsFiltered(filterWithoutExtensions, nameFilter))
+            descriptors.addAll(resolutionScope.collectAllFromMeAndParent { scope ->
+                scope.collectSyntheticStaticMembers(resolutionFacade, kindFilter, nameFilter)
+            })
         }
 
         if (callType == CallType.SUPER_MEMBERS) { // we need to unwrap fake overrides in case of "super." because ShadowedDeclarationsFilter does not work correctly
@@ -222,7 +227,7 @@ class ReferenceVariantsHelper(
     ): Collection<DeclarationDescriptor> {
         if (receiverExpression != null) {
             val qualifier = bindingContext[BindingContext.QUALIFIER, receiverExpression] ?: return emptyList()
-            return qualifier.staticScope.getDescriptorsFiltered(kindFilter, nameFilter)
+            return qualifier.staticScope.collectStaticMembers(resolutionFacade, kindFilter, nameFilter)
         }
         else {
             val scope = contextElement.getResolutionScope(bindingContext, resolutionFacade)
@@ -261,7 +266,7 @@ class ReferenceVariantsHelper(
                 explicitReceiverTypes
                         .map { (it.constructor.declarationDescriptor as? ClassDescriptor)?.staticScope }
                         .filterNotNull()
-                        .flatMapTo(descriptors) { scope -> scope.getDescriptorsFiltered(kindFilter, nameFilter) }
+                        .flatMapTo(descriptors) { it.collectStaticMembers(resolutionFacade, kindFilter, nameFilter) }
             }
         }
         else {
@@ -278,7 +283,7 @@ class ReferenceVariantsHelper(
     ): Collection<DeclarationDescriptor> {
         if (receiverExpression != null) {
             val qualifier = bindingContext[BindingContext.QUALIFIER, receiverExpression] ?: return emptyList()
-            val staticDescriptors = qualifier.staticScope.getDescriptorsFiltered(kindFilter, nameFilter)
+            val staticDescriptors = qualifier.staticScope.collectStaticMembers(resolutionFacade, kindFilter, nameFilter)
 
             val objectDescriptor = (qualifier as? ClassQualifier)?.descriptor?.takeIf { it.kind == ClassKind.OBJECT } ?: return staticDescriptors
 
@@ -394,3 +399,20 @@ class ReferenceVariantsHelper(
         }
     }
 }
+
+private fun MemberScope.collectStaticMembers(
+        resolutionFacade: ResolutionFacade,
+        kindFilter: DescriptorKindFilter,
+        nameFilter: (Name) -> Boolean
+): Collection<DeclarationDescriptor> {
+    return getDescriptorsFiltered(kindFilter, nameFilter) + collectSyntheticStaticMembers(resolutionFacade, kindFilter, nameFilter)
+}
+
+fun ResolutionScope.collectSyntheticStaticMembers(
+        resolutionFacade: ResolutionFacade,
+        kindFilter: DescriptorKindFilter,
+        nameFilter: (Name) -> Boolean
+): List<FunctionDescriptor> {
+    val syntheticScopes = resolutionFacade.getFrontendService(SyntheticScopes::class.java)
+    return syntheticScopes.collectSyntheticStaticFunctions(this).filter { kindFilter.accepts(it) && nameFilter(it.name) }
+}

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/StaticMembersCompletion.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
+import org.jetbrains.kotlin.idea.codeInsight.collectSyntheticStaticMembers
 import org.jetbrains.kotlin.idea.core.KotlinIndicesHelper
 import org.jetbrains.kotlin.idea.core.targetDescriptors
 import org.jetbrains.kotlin.idea.resolve.ResolutionFacade
@@ -76,9 +77,14 @@ class StaticMembersCompletion(
                 .toSet()
 
         val result = ArrayList<DeclarationDescriptor>()
+
+        val kindFilter = DescriptorKindFilter.CALLABLES exclude DescriptorKindExclude.Extensions
+        val nameFilter = prefixMatcher.asNameFilter()
         for (container in containers) {
             val memberScope = if (container.kind == ClassKind.OBJECT) container.unsubstitutedMemberScope else container.staticScope
-            val members = memberScope.getDescriptorsFiltered(DescriptorKindFilter.CALLABLES exclude DescriptorKindExclude.Extensions, prefixMatcher.asNameFilter())
+            val members =
+                    memberScope.getDescriptorsFiltered(kindFilter, nameFilter) +
+                    memberScope.collectSyntheticStaticMembers(resolutionFacade, kindFilter, nameFilter)
             members.filterTo(result) { it is CallableDescriptor && it !in alreadyAdded }
         }
         return result

idea/idea-core/src/org/jetbrains/kotlin/idea/core/KotlinIndicesHelper.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2016 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,6 +46,8 @@ import org.jetbrains.kotlin.psi.psiUtil.contains
 import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.isHiddenInResolution
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
+import org.jetbrains.kotlin.resolve.scopes.SyntheticScopes
+import org.jetbrains.kotlin.resolve.scopes.collectSyntheticStaticFunctions
 import org.jetbrains.kotlin.types.KotlinType
 import java.lang.reflect.Field
 import java.lang.reflect.Modifier
@@ -441,7 +443,8 @@ class KotlinIndicesHelper(
                     processor(descriptor)
 
                     // SAM-adapter
-                    container.staticScope.getContributedFunctions(descriptor.name, NoLookupLocation.FROM_IDE)
+                    val syntheticScopes = resolutionFacade.getFrontendService(SyntheticScopes::class.java)
+                    syntheticScopes.collectSyntheticStaticFunctions(container.staticScope, descriptor.name, NoLookupLocation.FROM_IDE)
                             .filterIsInstance<SamAdapterDescriptor<*>>()
                             .firstOrNull { it.baseDescriptorForSynthetic.original == descriptor.original }
                             ?.let { processor(it) }

idea/src/org/jetbrains/kotlin/idea/inspections/RedundantSamConstructorInspection.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,6 +45,7 @@ import org.jetbrains.kotlin.resolve.calls.util.DelegatingCall
 import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 import org.jetbrains.kotlin.resolve.scopes.SyntheticScopes
 import org.jetbrains.kotlin.resolve.scopes.collectSyntheticMemberFunctions
+import org.jetbrains.kotlin.resolve.scopes.collectSyntheticStaticFunctions
 import org.jetbrains.kotlin.synthetic.SamAdapterExtensionFunctionDescriptor
 import org.jetbrains.kotlin.types.TypeUtils
 import org.jetbrains.kotlin.utils.keysToMapExceptNulls
@@ -181,9 +182,10 @@ class RedundantSamConstructorInspection : AbstractKotlinInspection() {
             val originalFunctionDescriptor = functionResolvedCall.resultingDescriptor.original as? FunctionDescriptor ?: return emptyList()
             val containingClass = originalFunctionDescriptor.containingDeclaration as? ClassDescriptor ?: return emptyList()
 
+            val syntheticScopes = functionCall.getResolutionFacade().getFrontendService(SyntheticScopes::class.java)
+
             // SAM adapters for static functions
-            val contributedFunctions = containingClass.staticScope.getContributedFunctions(
+            val contributedFunctions = syntheticScopes.collectSyntheticStaticFunctions(containingClass.staticScope)
-                    functionResolvedCall.resultingDescriptor.name, NoLookupLocation.FROM_IDE)
             for (staticFunWithSameName in contributedFunctions) {
                 if (staticFunWithSameName is SamAdapterDescriptor<*>) {
                     if (isSamAdapterSuitableForCall(staticFunWithSameName, originalFunctionDescriptor, samConstructorCallArgumentMap.size)) {
@@ -193,7 +195,6 @@ class RedundantSamConstructorInspection : AbstractKotlinInspection() {
             }
 
             // SAM adapters for member functions
-            val syntheticScopes = functionCall.getResolutionFacade().getFrontendService(SyntheticScopes::class.java)
             val syntheticExtensions = syntheticScopes.collectSyntheticMemberFunctions(
                     listOf(containingClass.defaultType),
                     functionResolvedCall.resultingDescriptor.name,

idea/src/org/jetbrains/kotlin/idea/parameterInfo/KotlinFunctionParameterInfoHandler.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.idea.core.OptionalParametersHelper
 import org.jetbrains.kotlin.idea.core.resolveCandidates
 import org.jetbrains.kotlin.idea.resolve.ResolutionFacade
 import org.jetbrains.kotlin.lexer.KtTokens
+import org.jetbrains.kotlin.load.java.descriptors.SamAdapterDescriptor
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.allChildren
 import org.jetbrains.kotlin.psi.psiUtil.parents
@@ -390,6 +391,13 @@ abstract class KotlinParameterInfoWithCallHandlerBase<TArgumentList : KtElement,
     // we should not compare descriptors directly because partial resolve is involved
     private fun descriptorsEqual(descriptor1: FunctionDescriptor, descriptor2: FunctionDescriptor): Boolean {
         if (descriptor1.original == descriptor2.original) return true
+        val isSamDescriptor1 = descriptor1 is SamAdapterDescriptor<*>
+        val isSamDescriptor2 = descriptor2 is SamAdapterDescriptor<*>
+
+        // Previously it worked because of different order
+        // If descriptor1 is SamAdapter and descriptor2 isn't, this function shouldn't return `true` because of equal declaration
+        if (isSamDescriptor1 xor isSamDescriptor2) return false
+
         val declaration1 = DescriptorToSourceUtils.descriptorToDeclaration(descriptor1) ?: return false
         val declaration2 = DescriptorToSourceUtils.descriptorToDeclaration(descriptor2)
         return declaration1 == declaration2