IDE: Don't do any resolution in AddExclExclExclFix (i.e., in

isAvailable and in invoke) by moving computation of element to modify
to before instantiation (i.e., to the factories or equivalent).

This lets us to move it to idea-frontend-independent and re-use it FIR.

idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/quickfix/AddExclExclCallFix.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.idea.quickfix
+
+import com.intellij.codeInsight.FileModificationService
+import com.intellij.codeInsight.intention.LowPriorityAction
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.project.Project
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.idea.KotlinBundle
+import org.jetbrains.kotlin.psi.KtCallableReferenceExpression
+import org.jetbrains.kotlin.psi.KtFile
+import org.jetbrains.kotlin.psi.KtPsiFactory
+import org.jetbrains.kotlin.psi.createExpressionByPattern
+
+class AddExclExclCallFix(psiElement: PsiElement, val fixImplicitReceiver: Boolean = false) : ExclExclCallFix(psiElement),
+    LowPriorityAction {
+
+    override fun getText() = KotlinBundle.message("fix.introduce.non.null.assertion")
+
+    override fun invoke(project: Project, editor: Editor?, file: KtFile) {
+        if (!FileModificationService.getInstance().prepareFileForWrite(file)) return
+
+        val modifiedExpression = element ?: return
+        val psiFactory = KtPsiFactory(project)
+        val exclExclExpression = if (fixImplicitReceiver) {
+            if (modifiedExpression is KtCallableReferenceExpression) {
+                psiFactory.createExpressionByPattern("this!!::$0", modifiedExpression.callableReference)
+            } else {
+                psiFactory.createExpressionByPattern("this!!.$0", modifiedExpression)
+            }
+        } else {
+            psiFactory.createExpressionByPattern("$0!!", modifiedExpression)
+        }
+        modifiedExpression.replace(exclExclExpression)
+    }
+}

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

@@ -22,7 +22,7 @@ import com.intellij.codeInspection.ui.MultipleCheckboxOptionsPanel
 import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.intentions.SpecifyTypeExplicitlyIntention
 import org.jetbrains.kotlin.idea.intentions.isFlexibleRecursive
-import org.jetbrains.kotlin.idea.quickfix.AddExclExclCallFix
+import org.jetbrains.kotlin.idea.quickfix.getAddExclExclCallFix
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.psi.KtCallableDeclaration
 import org.jetbrains.kotlin.psi.psiUtil.getNextSiblingIgnoringWhitespaceAndComments
@@ -58,7 +58,7 @@ class HasPlatformTypeInspection(
             if (expression != null &&
                 (!reportPlatformArguments || !TypeUtils.makeNotNullable(type).isFlexibleRecursive())
             ) {
-                return listOf(IntentionWrapper(AddExclExclCallFix(expression), element.containingFile))
+                return listOfNotNull(getAddExclExclCallFix(expression)?.let { IntentionWrapper(it, element.containingFile) })
             }
         }
 

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

@@ -20,7 +20,7 @@ import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.caches.resolve.getResolutionFacade
 import org.jetbrains.kotlin.idea.project.languageVersionSettings
-import org.jetbrains.kotlin.idea.quickfix.AddExclExclCallFix
+import org.jetbrains.kotlin.idea.quickfix.getAddExclExclCallFix
 import org.jetbrains.kotlin.idea.resolve.getDataFlowValueFactory
 import org.jetbrains.kotlin.psi.KtCallExpression
 import org.jetbrains.kotlin.psi.KtDotQualifiedExpression
@@ -78,14 +78,16 @@ class PlatformExtensionReceiverOfInlineInspection : AbstractKotlinInspection() {
                 val stableNullability = context.getDataFlowInfoBefore(receiverExpression).getStableNullability(dataFlow)
                 if (!stableNullability.canBeNull()) return
 
+                getAddExclExclCallFix(receiverExpression)?.let {
                     holder.registerProblem(
                         receiverExpression,
                         KotlinBundle.message("call.of.inline.function.with.nullable.extension.receiver.can.provoke.npe.in.kotlin.1.2"),
                         ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
-                    IntentionWrapper(AddExclExclCallFix(receiverExpression), receiverExpression.containingKtFile)
+                        IntentionWrapper(it, receiverExpression.containingKtFile)
                     )
                 }
             }
+        }
 
     override fun createOptionsPanel() = OptionsPanel(this)
 

idea/src/org/jetbrains/kotlin/idea/quickfix/AddExclExclCallFix.kt

@@ -5,11 +5,7 @@
 
 package org.jetbrains.kotlin.idea.quickfix
 
-import com.intellij.codeInsight.FileModificationService
 import com.intellij.codeInsight.intention.IntentionAction
-import com.intellij.codeInsight.intention.LowPriorityAction
-import com.intellij.openapi.editor.Editor
-import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiElement
 import com.intellij.psi.impl.source.tree.LeafPsiElement
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
@@ -18,7 +14,6 @@ import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
 import org.jetbrains.kotlin.diagnostics.Diagnostic
 import org.jetbrains.kotlin.diagnostics.Errors
 import org.jetbrains.kotlin.diagnostics.Errors.UNSAFE_CALL
-import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.caches.resolve.findModuleDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.getResolutionFacade
@@ -38,52 +33,24 @@ import org.jetbrains.kotlin.util.OperatorNameConventions
 import org.jetbrains.kotlin.util.isValidOperator
 import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
-class AddExclExclCallFix(psiElement: PsiElement, val checkImplicitReceivers: Boolean = true) : ExclExclCallFix(psiElement),
+fun getAddExclExclCallFix(element: PsiElement?, checkImplicitReceivers: Boolean = false): AddExclExclCallFix? {
-    LowPriorityAction {
+    fun KtExpression?.asFix(implicitReceiver: Boolean = false) = this?.let { AddExclExclCallFix(it, implicitReceiver) }
 
-    override fun getText() = KotlinBundle.message("fix.introduce.non.null.assertion")
-
-    override fun isAvailable(project: Project, editor: Editor?, file: KtFile): Boolean =
-        getExpressionForIntroduceCall() != null
-
-    override fun invoke(project: Project, editor: Editor?, file: KtFile) {
-        if (!FileModificationService.getInstance().prepareFileForWrite(file)) return
-
-        val expr = getExpressionForIntroduceCall() ?: return
-        val modifiedExpression = expr.expression
-        val psiFactory = KtPsiFactory(project)
-        val exclExclExpression = if (expr.implicitReceiver) {
-            if (modifiedExpression is KtCallableReferenceExpression) {
-                psiFactory.createExpressionByPattern("this!!::$0", modifiedExpression.callableReference)
-            } else {
-                psiFactory.createExpressionByPattern("this!!.$0", modifiedExpression)
-            }
-        } else {
-            psiFactory.createExpressionByPattern("$0!!", modifiedExpression)
-        }
-        modifiedExpression.replace(exclExclExpression)
-    }
-
-    private class ExpressionForCall(val expression: KtExpression, val implicitReceiver: Boolean)
-
-    private fun KtExpression?.expressionForCall(implicitReceiver: Boolean = false) = this?.let { ExpressionForCall(it, implicitReceiver) }
-
-    private fun getExpressionForIntroduceCall(): ExpressionForCall? {
     val psiElement = element ?: return null
     if ((psiElement as? KtExpression).isNullExpression()) {
         return null
     }
     if (psiElement is LeafPsiElement && psiElement.elementType == KtTokens.DOT) {
-            return (psiElement.prevSibling as? KtExpression).expressionForCall()
+        return (psiElement.prevSibling as? KtExpression).asFix()
     }
     return when (psiElement) {
-            is KtArrayAccessExpression -> psiElement.expressionForCall()
+        is KtArrayAccessExpression -> psiElement.asFix()
         is KtOperationReferenceExpression -> {
             when (val parent = psiElement.parent) {
-                    is KtUnaryExpression -> parent.baseExpression.expressionForCall()
+                is KtUnaryExpression -> parent.baseExpression.asFix()
                 is KtBinaryExpression -> {
                     val receiver = if (KtPsiUtil.isInOrNotInOperation(parent)) parent.right else parent.left
-                        receiver.expressionForCall()
+                    receiver.asFix()
                 }
                 else -> null
             }
@@ -93,7 +60,7 @@ class AddExclExclCallFix(psiElement: PsiElement, val checkImplicitReceivers: Boo
             val context = psiElement.analyze()
             if (checkImplicitReceivers && psiElement.getResolvedCall(context)?.getImplicitReceiverValue() is ExtensionReceiver) {
                 val expressionToReplace = parent as? KtCallExpression ?: parent as? KtCallableReferenceExpression ?: psiElement
-                    expressionToReplace.expressionForCall(implicitReceiver = true)
+                expressionToReplace.asFix(implicitReceiver = true)
             } else {
                 val targetElement = parent.safeAs<KtCallableReferenceExpression>()?.receiverExpression ?: psiElement
                 context[BindingContext.EXPRESSION_TYPE_INFO, targetElement]?.let {
@@ -108,21 +75,20 @@ class AddExclExclCallFix(psiElement: PsiElement, val checkImplicitReceivers: Boo
                         if (!nullability.canBeNonNull()) return null
                     }
                 }
-                    targetElement.expressionForCall()
+                targetElement.asFix()
             }
         }
         else -> null
     }
 }
 
-    companion object : KotlinSingleIntentionActionFactory() {
+object UnsafeCallExclExclFixFactory : KotlinSingleIntentionActionFactory() {
-        override fun createAction(diagnostic: Diagnostic): IntentionAction {
+    override fun createAction(diagnostic: Diagnostic): IntentionAction? {
         val psiElement = diagnostic.psiElement
         if (diagnostic.factory == UNSAFE_CALL && psiElement is KtArrayAccessExpression) {
-                psiElement.arrayExpression?.let { return AddExclExclCallFix(it) }
+            psiElement.arrayExpression?.let { return getAddExclExclCallFix(it) }
-            }
-            return AddExclExclCallFix(psiElement)
         }
+        return getAddExclExclCallFix(psiElement, checkImplicitReceivers = true)
     }
 }
 
@@ -141,7 +107,7 @@ object SmartCastImpossibleExclExclFixFactory : KotlinSingleIntentionActionFactor
         val nullableExpectedType = TypeUtils.makeNullable(expectedType)
         if (!type.isSubtypeOf(nullableExpectedType)) return null
 
-        return AddExclExclCallFix(element, checkImplicitReceivers = false)
+        return getAddExclExclCallFix(element)
     }
 }
 
@@ -174,6 +140,6 @@ object MissingIteratorExclExclFixFactory : KotlinSingleIntentionActionFactory()
             else -> return null
         }
 
-        return AddExclExclCallFix(element, checkImplicitReceivers = false)
+        return getAddExclExclCallFix(element)
     }
 }

idea/src/org/jetbrains/kotlin/idea/quickfix/QuickFixFactoryForTypeMismatchError.kt

@@ -166,7 +166,7 @@ class QuickFixFactoryForTypeMismatchError : KotlinIntentionActionsFactory() {
             val nullableExpected = expectedType.makeNullable()
             if (expressionType.isSubtypeOf(nullableExpected)) {
                 val targetExpression = diagnosticElement.getTopMostQualifiedForSelectorIfAny()
-                actions.add(AddExclExclCallFix(targetExpression, checkImplicitReceivers = false))
+                getAddExclExclCallFix(targetExpression)?.let { actions.add(it) }
                 if (expectedType.isBoolean()) {
                     actions.add(AddEqEqTrueFix(targetExpression))
                 }

idea/src/org/jetbrains/kotlin/idea/quickfix/QuickFixRegistrar.kt

@@ -262,9 +262,9 @@ class QuickFixRegistrar : QuickFixContributor {
         UNSAFE_OPERATOR_CALL.registerFactory(WrapWithSafeLetCallFix.UnsafeFactory)
         TYPE_MISMATCH.registerFactory(WrapWithSafeLetCallFix.TypeMismatchFactory)
 
-        UNSAFE_CALL.registerFactory(AddExclExclCallFix)
+        UNSAFE_CALL.registerFactory(UnsafeCallExclExclFixFactory)
-        UNSAFE_INFIX_CALL.registerFactory(AddExclExclCallFix)
+        UNSAFE_INFIX_CALL.registerFactory(UnsafeCallExclExclFixFactory)
-        UNSAFE_OPERATOR_CALL.registerFactory(AddExclExclCallFix)
+        UNSAFE_OPERATOR_CALL.registerFactory(UnsafeCallExclExclFixFactory)
         UNNECESSARY_NOT_NULL_ASSERTION.registerFactory(RemoveExclExclCallFix)
         UNSAFE_INFIX_CALL.registerFactory(ReplaceInfixOrOperatorCallFix)
         UNSAFE_OPERATOR_CALL.registerFactory(ReplaceInfixOrOperatorCallFix)

idea/testData/quickfix/allowResolveInWriteAction.txt

@@ -20,9 +20,7 @@ org.jetbrains.kotlin.idea.intentions.MoveMemberToCompanionObjectIntention
 org.jetbrains.kotlin.idea.intentions.MovePropertyToConstructorIntention
 org.jetbrains.kotlin.idea.intentions.SpecifyTypeExplicitlyIntention
 org.jetbrains.kotlin.idea.quickfix.AddAnnotationTargetFix
-org.jetbrains.kotlin.idea.quickfix.AddExclExclCallFix
 org.jetbrains.kotlin.idea.quickfix.AddFunctionToSupertypeFix
-org.jetbrains.kotlin.idea.quickfix.AddModifierFix
 org.jetbrains.kotlin.idea.quickfix.AddNameToArgumentFix
 org.jetbrains.kotlin.idea.quickfix.AddPropertyToSupertypeFix
 org.jetbrains.kotlin.idea.quickfix.AddStartProjectionsForInnerClass

nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/J2kPostProcessor.kt

@@ -101,13 +101,13 @@ private val errorsFixingDiagnosticBasedPostProcessingGroup =
         },
 
         diagnosticBasedProcessing(
-            addExclExclFactoryNoImplicitReceiver(AddExclExclCallFix),
+            UnsafeCallExclExclFixFactory,
             Errors.UNSAFE_CALL,
             Errors.UNSAFE_INFIX_CALL,
             Errors.UNSAFE_OPERATOR_CALL
         ),
         diagnosticBasedProcessing(
-            addExclExclFactoryNoImplicitReceiver(MissingIteratorExclExclFixFactory),
+            MissingIteratorExclExclFixFactory,
             Errors.ITERATOR_ON_NULLABLE
         ),
         diagnosticBasedProcessing(

nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/diagnosticBasedPostProcessing.kt

@@ -5,15 +5,12 @@
 
 package org.jetbrains.kotlin.nj2k.postProcessing
 
-import com.intellij.codeInsight.intention.IntentionAction
 import com.intellij.openapi.editor.RangeMarker
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.caches.resolve.KotlinCacheService
 import org.jetbrains.kotlin.diagnostics.Diagnostic
 import org.jetbrains.kotlin.diagnostics.DiagnosticFactory
 import org.jetbrains.kotlin.idea.core.util.range
-import org.jetbrains.kotlin.idea.quickfix.AddExclExclCallFix
-import org.jetbrains.kotlin.idea.quickfix.KotlinSingleIntentionActionFactory
 import org.jetbrains.kotlin.idea.quickfix.QuickFixFactory
 import org.jetbrains.kotlin.idea.resolve.ResolutionFacade
 import org.jetbrains.kotlin.idea.util.application.runReadAction
@@ -22,7 +19,6 @@ import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.psiUtil.elementsInRange
 import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics
-import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 class DiagnosticBasedPostProcessingGroup(diagnosticBasedProcessings: List<DiagnosticBasedProcessing>) : FileBasedPostProcessing() {
     constructor(vararg diagnosticBasedProcessings: DiagnosticBasedProcessing) : this(diagnosticBasedProcessings.toList())
@@ -97,14 +93,3 @@ fun diagnosticBasedProcessing(fixFactory: QuickFixFactory, vararg diagnosticFact
             }
         }
     }
-
-fun addExclExclFactoryNoImplicitReceiver(initialFactory: KotlinSingleIntentionActionFactory) =
-    object : KotlinSingleIntentionActionFactory() {
-        override fun createAction(diagnostic: Diagnostic): IntentionAction? =
-            initialFactory.createActions(diagnostic).singleOrNull()
-                ?.safeAs<AddExclExclCallFix>()
-                ?.let {
-                    AddExclExclCallFix(diagnostic.psiElement, checkImplicitReceivers = false)
-                }
-    }
-