Respect explicit api mode state when generating actual declarations

#KT-44067 Fixed

idea/idea-core/src/org/jetbrains/kotlin/idea/core/overrideImplement/OverrideMemberChooserObject.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * 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.
  */
 
@@ -12,6 +12,9 @@ import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiDocCommentOwner
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.config.AnalysisFlag
+import org.jetbrains.kotlin.config.AnalysisFlags
+import org.jetbrains.kotlin.config.ExplicitApiMode
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptorIfAny
 import org.jetbrains.kotlin.idea.codeInsight.DescriptorToSourceUtilsIde
@@ -21,9 +24,11 @@ import org.jetbrains.kotlin.idea.core.overrideImplement.BodyType.*
 import org.jetbrains.kotlin.idea.core.util.DescriptorMemberChooserObject
 import org.jetbrains.kotlin.idea.j2k.IdeaDocCommentConverter
 import org.jetbrains.kotlin.idea.kdoc.KDocElementFactory
+import org.jetbrains.kotlin.idea.project.getLanguageVersionSettings
 import org.jetbrains.kotlin.idea.util.IdeDescriptorRenderers
 import org.jetbrains.kotlin.idea.util.approximateFlexibleTypes
 import org.jetbrains.kotlin.idea.util.expectedDescriptors
+import org.jetbrains.kotlin.idea.util.module
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.findDocComment.findDocComment
@@ -36,6 +41,8 @@ import org.jetbrains.kotlin.renderer.DescriptorRendererModifier.*
 import org.jetbrains.kotlin.renderer.OverrideRenderingPolicy
 import org.jetbrains.kotlin.renderer.render
 import org.jetbrains.kotlin.resolve.checkers.ExperimentalUsageChecker
+import org.jetbrains.kotlin.resolve.checkers.ExplicitApiDeclarationChecker
+import org.jetbrains.kotlin.resolve.checkers.explicitApiEnabled
 import org.jetbrains.kotlin.resolve.descriptorUtil.setSingleOverridden
 import org.jetbrains.kotlin.util.findCallableMemberBySignature
 
@@ -133,6 +140,12 @@ fun OverrideMemberChooserObject.generateMember(
                 renderPrimaryConstructorParametersAsProperties = true
             }
         }
+
+        if (MemberGenerateMode.OVERRIDE != mode &&
+            project.getLanguageVersionSettings(targetClass?.module).explicitApiEnabled
+        ) {
+            if (!ExplicitApiDeclarationChecker.explicitVisibilityIsNotRequired(this@generateMember.descriptor)) renderDefaultVisibility = true
+        }
     }
 
     if (preferConstructorParameter && descriptor is PropertyDescriptor) {

idea/testData/multiModuleQuickFix/createActualExplicitApi/class/header/header.kt

@@ -0,0 +1,16 @@
+// "Create actual class for module testModule_JVM (JVM)" "true"
+// COMPILER_ARGUMENTS: -Xexplicit-api=strict
+
+public expect class <caret>My {
+    public fun foo(param: String): Int
+
+    public fun String.bar(y: Double): Boolean
+
+    public fun baz(): Unit
+
+    public constructor(flag: Boolean)
+
+    public val isGood: Boolean
+
+    public var status: Int
+}

idea/testData/multiModuleQuickFix/createActualExplicitApi/class/header/header.kt.after

@@ -0,0 +1,16 @@
+// "Create actual class for module testModule_JVM (JVM)" "true"
+// COMPILER_ARGUMENTS: -Xexplicit-api=strict
+
+public expect class My {
+    public fun foo(param: String): Int
+
+    public fun String.bar(y: Double): Boolean
+
+    public fun baz(): Unit
+
+    public constructor(flag: Boolean)
+
+    public val isGood: Boolean
+
+    public var status: Int
+}

idea/testData/multiModuleQuickFix/createActualExplicitApi/class/jvm/My.kt

@@ -0,0 +1 @@
+// My: to be implemented

idea/testData/multiModuleQuickFix/createActualExplicitApi/class/jvm/My.kt.after

@@ -0,0 +1,24 @@
+// My: to be implemented
+public actual class My {
+    public actual fun foo(param: String): Int {
+        TODO("Not yet implemented")
+    }
+
+    public actual fun String.bar(y: Double): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    public actual fun baz() {
+    }
+
+    public actual constructor(flag: Boolean) {
+        TODO("Not yet implemented")
+    }
+
+    public actual val isGood: Boolean
+        get() = TODO("Not yet implemented")
+    public actual var status: Int
+        get() = TODO("Not yet implemented")
+        set(value) {}
+
+}

idea/testData/multiModuleQuickFix/createActualExplicitApi/function/header/header.kt

@@ -0,0 +1,4 @@
+// "Create actual function for module testModule_JVM (JVM)" "true"
+// COMPILER_ARGUMENTS: -Xexplicit-api=strict
+
+public expect fun <caret>foo(arg: Int): String

idea/testData/multiModuleQuickFix/createActualExplicitApi/function/header/header.kt.after

@@ -0,0 +1,4 @@
+// "Create actual function for module testModule_JVM (JVM)" "true"
+// COMPILER_ARGUMENTS: -Xexplicit-api=strict
+
+public expect fun foo(arg: Int): String

idea/testData/multiModuleQuickFix/createActualExplicitApi/function/jvm/foo.kt

@@ -0,0 +1 @@
+// foo: to be implemented

idea/testData/multiModuleQuickFix/createActualExplicitApi/function/jvm/foo.kt.after

@@ -0,0 +1,4 @@
+// foo: to be implemented
+public actual fun foo(arg: Int): String {
+    TODO("Not yet implemented")
+}

idea/tests/org/jetbrains/kotlin/idea/quickfix/AbstractQuickFixMultiModuleTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * 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.
  */
 
@@ -14,10 +14,7 @@ import junit.framework.TestCase
 import org.jetbrains.kotlin.idea.inspections.findExistingEditor
 import org.jetbrains.kotlin.idea.multiplatform.setupMppProjectFromDirStructure
 import org.jetbrains.kotlin.idea.stubs.AbstractMultiModuleTest
-import org.jetbrains.kotlin.idea.test.DirectiveBasedActionUtils
+import org.jetbrains.kotlin.idea.test.*
-import org.jetbrains.kotlin.idea.test.PluginTestCaseBase
-import org.jetbrains.kotlin.idea.test.allKotlinFiles
-import org.jetbrains.kotlin.idea.test.findFileWithCaret
 import org.jetbrains.kotlin.idea.util.application.executeCommand
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.test.InTextDirectivesUtils
@@ -32,7 +29,10 @@ abstract class AbstractQuickFixMultiModuleTest : AbstractMultiModuleTest(), Quic
 
     fun doTest(dirPath: String) {
         setupMppProjectFromDirStructure(File(dirPath))
-        doQuickFixTest(dirPath)
+        val directiveFileText = project.findFileWithCaret().text
+        withCustomCompilerOptions(directiveFileText, project, module) {
+            doQuickFixTest(dirPath)
+        }
     }
 
     private fun doQuickFixTest(dirPath: String) {

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixMultiModuleTestGenerated.java

@@ -517,6 +517,29 @@ public class QuickFixMultiModuleTestGenerated extends AbstractQuickFixMultiModul
         }
     }
 
+    @TestMetadata("idea/testData/multiModuleQuickFix/createActualExplicitApi")
+    @TestDataPath("$PROJECT_ROOT")
+    @RunWith(JUnit3RunnerWithInners.class)
+    public static class CreateActualExplicitApi extends AbstractQuickFixMultiModuleTest {
+        private void runTest(String testDataFilePath) throws Exception {
+            KotlinTestUtils.runTest(this::doTest, this, testDataFilePath);
+        }
+
+        public void testAllFilesPresentInCreateActualExplicitApi() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("idea/testData/multiModuleQuickFix/createActualExplicitApi"), Pattern.compile("^([^\\.]+)$"), null, true);
+        }
+
+        @TestMetadata("class")
+        public void testClass() throws Exception {
+            runTest("idea/testData/multiModuleQuickFix/createActualExplicitApi/class/");
+        }
+
+        @TestMetadata("function")
+        public void testFunction() throws Exception {
+            runTest("idea/testData/multiModuleQuickFix/createActualExplicitApi/function/");
+        }
+    }
+
     @TestMetadata("idea/testData/multiModuleQuickFix/createExpect")
     @TestDataPath("$PROJECT_ROOT")
     @RunWith(JUnit3RunnerWithInners.class)