All operator usages are searched with new searcher

compiler/frontend/src/org/jetbrains/kotlin/resolve/DelegatedPropertyResolver.java

@@ -58,9 +58,8 @@ import static org.jetbrains.kotlin.types.TypeUtils.NO_EXPECTED_TYPE;
 import static org.jetbrains.kotlin.types.TypeUtils.noExpectedType;
 import static org.jetbrains.kotlin.types.expressions.ExpressionTypingUtils.createFakeExpressionOfType;
 
+//TODO: check for 'operator' modifier!
 public class DelegatedPropertyResolver {
-    public static final Name PROPERTY_DELEGATED_FUNCTION_NAME = Name.identifier("propertyDelegated");
-
     private final KotlinBuiltIns builtIns;
     private final FakeCallResolver fakeCallResolver;
     private final ExpressionTypingServices expressionTypingServices;
@@ -198,7 +197,7 @@ public class DelegatedPropertyResolver {
         ExpressionReceiver receiver = ExpressionReceiver.Companion.create(delegateExpression, delegateType, trace.getBindingContext());
 
         Pair<Call, OverloadResolutionResults<FunctionDescriptor>> resolutionResult =
-                fakeCallResolver.makeAndResolveFakeCallInContext(receiver, context, arguments, PROPERTY_DELEGATED_FUNCTION_NAME, delegateExpression);
+                fakeCallResolver.makeAndResolveFakeCallInContext(receiver, context, arguments, OperatorNameConventions.PROPERTY_DELEGATED, delegateExpression);
 
         Call call = resolutionResult.getFirst();
         OverloadResolutionResults<FunctionDescriptor> functionResults = resolutionResult.getSecond();

core/descriptors/src/org/jetbrains/kotlin/util/OperatorNameConventions.kt

@@ -59,6 +59,8 @@ object OperatorNameConventions {
     @JvmField val COROUTINE_HANDLE_RESULT = Name.identifier("handleResult")
     @JvmField val COROUTINE_HANDLE_EXCEPTION = Name.identifier("handleException")
 
+    @JvmField val PROPERTY_DELEGATED = Name.identifier("propertyDelegated")
+
     // If you add new unary, binary or assignment operators, add it to OperatorConventions as well
 
     @JvmField

core/descriptors/src/org/jetbrains/kotlin/util/modifierChecks.kt

@@ -46,6 +46,7 @@ import org.jetbrains.kotlin.util.OperatorNameConventions.INC
 import org.jetbrains.kotlin.util.OperatorNameConventions.INVOKE
 import org.jetbrains.kotlin.util.OperatorNameConventions.ITERATOR
 import org.jetbrains.kotlin.util.OperatorNameConventions.NEXT
+import org.jetbrains.kotlin.util.OperatorNameConventions.PROPERTY_DELEGATED
 import org.jetbrains.kotlin.util.OperatorNameConventions.RANGE_TO
 import org.jetbrains.kotlin.util.OperatorNameConventions.SET
 import org.jetbrains.kotlin.util.OperatorNameConventions.SET_VALUE
@@ -215,7 +216,8 @@ object OperatorChecks : AbstractModifierChecks() {
                 ?: ensure(valueParameters[0].type.isThrowable()) {
                     "First parameter should be 'Throwable'"
                 }
-            }
+            },
+            Checks(PROPERTY_DELEGATED, Member, ValueParameterCountCheck.Equals(1)) //TODO: more checks required!
     )
 
     private fun FunctionDescriptor.checkHandleSecondParameter(): String? {

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/KotlinIndexers.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.idea.search
 
+import com.google.common.collect.ImmutableSet
 import com.intellij.lexer.Lexer
 import com.intellij.psi.TokenType
 import com.intellij.psi.impl.cache.impl.BaseFilterLexer
@@ -26,14 +27,27 @@ import com.intellij.psi.impl.cache.impl.todo.LexerBasedTodoIndexer
 import com.intellij.psi.search.UsageSearchContext
 import com.intellij.psi.tree.IElementType
 import com.intellij.psi.tree.TokenSet
-import org.jetbrains.kotlin.idea.search.usagesSearch.ALL_SEARCHABLE_OPERATIONS
 import org.jetbrains.kotlin.kdoc.lexer.KDocTokens
 import org.jetbrains.kotlin.lexer.KotlinLexer
+import org.jetbrains.kotlin.lexer.KtToken
 import org.jetbrains.kotlin.lexer.KtTokens
+import org.jetbrains.kotlin.types.expressions.OperatorConventions
 import java.util.*
 
 val KOTLIN_NAMED_ARGUMENT_SEARCH_CONTEXT: Short = 0x20
 
+private val ALL_SEARCHABLE_OPERATIONS: ImmutableSet<KtToken> = ImmutableSet
+        .builder<KtToken>()
+        .addAll(OperatorConventions.UNARY_OPERATION_NAMES.keys)
+        .addAll(OperatorConventions.BINARY_OPERATION_NAMES.keys)
+        .addAll(OperatorConventions.ASSIGNMENT_OPERATIONS.keys)
+        .addAll(OperatorConventions.COMPARISON_OPERATIONS)
+        .addAll(OperatorConventions.EQUALS_OPERATIONS)
+        .addAll(OperatorConventions.IN_OPERATIONS)
+        .add(KtTokens.LBRACKET)
+        .add(KtTokens.BY_KEYWORD)
+        .build()
+
 class KotlinFilterLexer(private val occurrenceConsumer: OccurrenceConsumer): BaseFilterLexer(KotlinLexer(), occurrenceConsumer) {
     private val codeTokens = TokenSet.orSet(
             TokenSet.create(*ALL_SEARCHABLE_OPERATIONS.toTypedArray()),

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/ideaExtensions/KotlinReferencesSearcher.kt

@@ -39,13 +39,11 @@ import org.jetbrains.kotlin.idea.search.unionSafe
 import org.jetbrains.kotlin.idea.search.usagesSearch.OperatorReferenceSearcher
 import org.jetbrains.kotlin.idea.search.usagesSearch.dataClassComponentFunction
 import org.jetbrains.kotlin.idea.search.usagesSearch.getClassNameForCompanionObject
-import org.jetbrains.kotlin.idea.search.usagesSearch.getSpecialNamesToSearch
 import org.jetbrains.kotlin.idea.stubindex.KotlinSourceFilterScope
 import org.jetbrains.kotlin.idea.util.application.runReadAction
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.getStrictParentOfType
 import org.jetbrains.kotlin.psi.psiUtil.parents
-import org.jetbrains.kotlin.utils.singletonOrEmptyList
 import java.util.*
 
 data class KotlinReferencesSearchOptions(val acceptCallableOverrides: Boolean = false,
@@ -94,9 +92,6 @@ class KotlinReferencesSearcher : QueryExecutorBase<PsiReference, ReferencesSearc
 
             val unwrappedElement = element.namedUnwrappedElement ?: return
 
-            val specialSymbols = unwrappedElement.getSpecialNamesToSearch(kotlinOptions)
-            val words = (specialSymbols?.first ?: emptyList()) + unwrappedElement.getClassNameForCompanionObject().singletonOrEmptyList()
-
             val elements = if (unwrappedElement is KtDeclaration) unwrappedElement.toLightElements() else listOf(unwrappedElement)
             val effectiveSearchScope = elements.fold(queryParameters.effectiveSearchScope) { scope, e ->
                 scope.unionSafe(queryParameters.effectiveSearchScope(e))
@@ -104,7 +99,6 @@ class KotlinReferencesSearcher : QueryExecutorBase<PsiReference, ReferencesSearc
 
             val refFilter: (PsiReference) -> Boolean = when {
                 unwrappedElement is KtParameter -> ({ ref: PsiReference -> !ref.isNamedArgumentReference()/* they are processed later*/ })
-                specialSymbols != null -> { ref -> ref.javaClass == specialSymbols.second }
                 else -> ({true})
             }
 
@@ -117,9 +111,12 @@ class KotlinReferencesSearcher : QueryExecutorBase<PsiReference, ReferencesSearc
                             name, effectiveSearchScope, UsageSearchContext.IN_CODE, true, unwrappedElement, resultProcessor)
                 }
             }
-            words.forEach { word ->
+
+
+            val classNameForCompanionObject = unwrappedElement.getClassNameForCompanionObject()
+            if (classNameForCompanionObject != null) {
                 queryParameters.optimizer.searchWord(
-                        word, effectiveSearchScope, UsageSearchContext.ANY, true, unwrappedElement, resultProcessor)
+                        classNameForCompanionObject, effectiveSearchScope, UsageSearchContext.ANY, true, unwrappedElement, resultProcessor)
             }
 
             if (unwrappedElement is KtParameter && kotlinOptions.searchNamedArguments) {

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/usagesSearch/ExpressionsOfTypeProcessor.kt

@@ -31,11 +31,9 @@ import com.intellij.util.Processor
 import org.jetbrains.annotations.TestOnly
 import org.jetbrains.kotlin.KtNodeTypes
 import org.jetbrains.kotlin.asJava.classes.KtLightClass
-import org.jetbrains.kotlin.asJava.elements.KtLightMethod
 import org.jetbrains.kotlin.asJava.toLightClass
 import org.jetbrains.kotlin.caches.resolve.KotlinCacheService
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
-import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.diagnostics.DiagnosticUtils
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.idea.KotlinLanguage
@@ -53,9 +51,7 @@ import org.jetbrains.kotlin.idea.util.FuzzyType
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
 import org.jetbrains.kotlin.idea.util.application.runReadAction
 import org.jetbrains.kotlin.kdoc.psi.impl.KDocName
-import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.load.java.sam.SingleAbstractMethodUtils
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.*
 import org.jetbrains.kotlin.resolve.jvm.platform.JvmPlatform
@@ -207,11 +203,6 @@ class ExpressionsOfTypeProcessor(
     }
 
     private fun addCallableDeclarationToProcess(declaration: PsiElement, scope: SearchScope, processMethod: (PsiReference) -> Boolean) {
-        if (declaration.isOperatorExpensiveToSearch()) { // cancel all tasks and use plain search
-            downShiftToPlainSearch()
-            return
-        }
-
         data class ProcessCallableUsagesTask(val declaration: PsiElement, val processMethod: (PsiReference) -> Boolean) : Task {
             override fun perform() {
                 testLog?.add("Searched references to ${logPresentation(declaration)} in non-Java files")
@@ -661,25 +652,6 @@ class ExpressionsOfTypeProcessor(
 
     private fun PsiModifierListOwner.isLocal() = parents.any { it is PsiCodeBlock }
 
-    private fun PsiElement.isOperatorExpensiveToSearch(): Boolean {
-        when (this) {
-            is KtFunction -> {
-                val isOperator = hasModifier(KtTokens.OPERATOR_KEYWORD)
-                                  || hasModifier(KtTokens.OVERRIDE_KEYWORD) && (resolveToDescriptorIfAny() as? FunctionDescriptor)?.isOperator == true
-                val name = name
-                return isOperator && name != null && Name.isValidIdentifier(name) && Name.identifier(name).getOperationSymbolsToSearch() != null
-            }
-
-            is KtLightMethod -> {
-                return kotlinOrigin?.isOperatorExpensiveToSearch() == true
-            }
-
-            else -> {
-                return false
-            }
-        }
-    }
-
     private fun KotlinType.containsTypeOrDerivedInside(type: FuzzyType): Boolean {
         return type.checkIsSuperTypeOf(this) != null || arguments.any { it.type.containsTypeOrDerivedInside(type) }
     }

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/usagesSearch/OperatorReferenceSearcher.kt

@@ -183,7 +183,7 @@ abstract class OperatorReferenceSearcher<TReferenceElement : KtElement>(
                 name == OperatorNameConventions.ITERATOR ->
                     return IteratorOperatorReferenceSearcher(declaration, searchScope, consumer, optimizer, options)
 
-                name == OperatorNameConventions.GET_VALUE || name == OperatorNameConventions.SET_VALUE ->
+                name == OperatorNameConventions.GET_VALUE || name == OperatorNameConventions.SET_VALUE || name == OperatorNameConventions.PROPERTY_DELEGATED ->
                     return PropertyDelegationOperatorReferenceSearcher(declaration, searchScope, consumer, optimizer, options)
 
                 else ->

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/usagesSearch/conventions.kt

@@ -1,45 +0,0 @@
-/*
- * Copyright 2010-2015 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.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.idea.search.usagesSearch
-
-import com.google.common.collect.ImmutableSet
-import org.jetbrains.kotlin.idea.references.KtPropertyDelegationMethodsReference
-import org.jetbrains.kotlin.lexer.KtToken
-import org.jetbrains.kotlin.lexer.KtTokens
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.resolve.DelegatedPropertyResolver
-import org.jetbrains.kotlin.types.expressions.OperatorConventions.*
-
-val ALL_SEARCHABLE_OPERATIONS: ImmutableSet<KtToken> = ImmutableSet
-        .builder<KtToken>()
-        .addAll(UNARY_OPERATION_NAMES.keys)
-        .addAll(BINARY_OPERATION_NAMES.keys)
-        .addAll(ASSIGNMENT_OPERATIONS.keys)
-        .addAll(COMPARISON_OPERATIONS)
-        .addAll(EQUALS_OPERATIONS)
-        .addAll(IN_OPERATIONS)
-        .add(KtTokens.LBRACKET)
-        .add(KtTokens.BY_KEYWORD)
-        .build()
-
-fun Name.getOperationSymbolsToSearch(): Pair<Set<KtToken>, Class<*>>? {
-    when (this) {
-        DelegatedPropertyResolver.PROPERTY_DELEGATED_FUNCTION_NAME -> return setOf(KtTokens.BY_KEYWORD) to KtPropertyDelegationMethodsReference::class.java
-    }
-
-    return null
-}

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/usagesSearch/searchHelpers.kt

@@ -22,9 +22,6 @@ import org.jetbrains.kotlin.asJava.LightClassUtil.PropertyAccessorsPsiMethods
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
-import org.jetbrains.kotlin.idea.search.ideaExtensions.KotlinReferencesSearchOptions
-import org.jetbrains.kotlin.lexer.KtSingleValueToken
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.getNonStrictParentOfType
 import org.jetbrains.kotlin.resolve.BindingContext
@@ -63,18 +60,6 @@ fun PsiNamedElement.getClassNameForCompanionObject(): String? {
     }
 }
 
-fun PsiNamedElement.getSpecialNamesToSearch(options: KotlinReferencesSearchOptions): Pair<List<String>, Class<*>>? {
-    val name = name
-    when {
-        name == null || !Name.isValidIdentifier(name) -> return null
-
-        else -> {
-            val operationSymbolsToSearch = Name.identifier(name).getOperationSymbolsToSearch() ?: return null
-            return operationSymbolsToSearch.first.map { (it as KtSingleValueToken).value } to operationSymbolsToSearch.second
-        }
-    }
-}
-
 fun KtParameter.dataClassComponentFunction(): FunctionDescriptor? {
     if (!hasValOrVar()) return null
 

idea/src/org/jetbrains/kotlin/idea/search/ideaExtensions/KotlinConventionMethodReferencesSearcher.kt

@@ -18,39 +18,19 @@ package org.jetbrains.kotlin.idea.search.ideaExtensions
 
 import com.intellij.openapi.application.QueryExecutorBase
 import com.intellij.psi.PsiReference
-import com.intellij.psi.search.UsageSearchContext
 import com.intellij.psi.search.searches.MethodReferencesSearch
 import com.intellij.util.Processor
-import org.jetbrains.kotlin.idea.search.restrictToKotlinSources
 import org.jetbrains.kotlin.idea.search.usagesSearch.OperatorReferenceSearcher
-import org.jetbrains.kotlin.idea.search.usagesSearch.getOperationSymbolsToSearch
-import org.jetbrains.kotlin.idea.util.application.runReadAction
-import org.jetbrains.kotlin.lexer.KtSingleValueToken
-import org.jetbrains.kotlin.name.Name
 
 class KotlinConventionMethodReferencesSearcher() : QueryExecutorBase<PsiReference, MethodReferencesSearch.SearchParameters>(true) {
     override fun processQuery(queryParameters: MethodReferencesSearch.SearchParameters, consumer: Processor<PsiReference>) {
-        val method = queryParameters.method
-        val name = runReadAction { method.name }
-        if (!Name.isValidIdentifier(name)) return
-        val identifier = Name.identifier(name)
-
         val operatorSearcher = OperatorReferenceSearcher.create(
-                method, queryParameters.effectiveSearchScope, consumer, queryParameters.optimizer, KotlinReferencesSearchOptions(acceptCallableOverrides = true))
-        if (operatorSearcher != null) {
-            operatorSearcher.run()
-        }
-        else {
-            val operationSymbolsToSearch = identifier.getOperationSymbolsToSearch() ?: return
-            val wordsToSearch = operationSymbolsToSearch.first.map { (it as KtSingleValueToken).value }
-            val resultProcessor = KotlinRequestResultProcessor(method,
-                                                               filter = { ref -> ref.javaClass == operationSymbolsToSearch.second })
-
-            wordsToSearch.forEach { word ->
-                queryParameters.optimizer.searchWord(word, queryParameters.effectiveSearchScope.restrictToKotlinSources(),
-                                                     UsageSearchContext.IN_CODE, true, method,
-                                                     resultProcessor)
-            }
-        }
+                queryParameters.method,
+                queryParameters.effectiveSearchScope,
+                consumer,
+                queryParameters.optimizer,
+                KotlinReferencesSearchOptions(acceptCallableOverrides = true)
+        )
+        operatorSearcher?.run()
     }
 }

idea/testData/findUsages/kotlin/conventions/propertyDelegatedFunction.0.kt

@@ -9,7 +9,7 @@ class Delegate() {
     operator fun setValue(thisRef: Any?, property: KProperty<*>, value: String) {
     }
 
-    fun <caret>propertyDelegated(property: KProperty<*>) {
+    operator fun <caret>propertyDelegated(property: KProperty<*>) {
     }
 }
 

idea/testData/findUsages/kotlin/conventions/propertyDelegatedFunction.log

@@ -0,0 +1,4 @@
+Resolved by Delegate()
+Searched references to Delegate
+Used plain search of Delegate.propertyDelegated(property: KProperty<*>) in LocalSearchScope:
+    CLASS:Delegate