Drop 'OBJECT$' field deprecated in M11

compiler/backend/src/org/jetbrains/kotlin/codegen/FieldInfo.java

@@ -20,7 +20,6 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.builtins.CompanionObjectMapping;
 import org.jetbrains.kotlin.codegen.state.JetTypeMapper;
 import org.jetbrains.kotlin.descriptors.ClassDescriptor;
-import org.jetbrains.kotlin.descriptors.ClassifierDescriptor;
 import org.jetbrains.kotlin.load.java.JvmAbi;
 import org.jetbrains.kotlin.resolve.DescriptorUtils;
 import org.jetbrains.org.objectweb.asm.Type;
@@ -46,18 +45,6 @@ public class FieldInfo {
         }
     }
 
-    @SuppressWarnings("deprecation")
-    @NotNull
-    public static FieldInfo deprecatedFieldForCompanionObject(@NotNull ClassDescriptor companionObject, @NotNull JetTypeMapper typeMapper) {
-        assert DescriptorUtils.isCompanionObject(companionObject) : "Not a companion object: " + companionObject;
-        return new FieldInfo(
-                typeMapper.mapType((ClassifierDescriptor) companionObject.getContainingDeclaration()),
-                typeMapper.mapType(companionObject),
-                JvmAbi.DEPRECATED_COMPANION_OBJECT_FIELD,
-                true
-        );
-    }
-
     @NotNull
     public static FieldInfo createForHiddenField(@NotNull Type owner, @NotNull Type fieldType, @NotNull String fieldName) {
         return new FieldInfo(owner, fieldType, fieldName, false);

compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java

@@ -43,7 +43,6 @@ import org.jetbrains.kotlin.load.java.JvmAbi;
 import org.jetbrains.kotlin.load.java.JvmAnnotationNames;
 import org.jetbrains.kotlin.load.java.JvmAnnotationNames.KotlinClass;
 import org.jetbrains.kotlin.load.java.descriptors.JavaCallableMemberDescriptor;
-import org.jetbrains.kotlin.name.FqName;
 import org.jetbrains.kotlin.name.Name;
 import org.jetbrains.kotlin.psi.*;
 import org.jetbrains.kotlin.resolve.BindingContext;
@@ -1008,12 +1007,6 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
         StackValue.Field field = StackValue.singleton(companionObjectDescriptor, typeMapper);
         v.newField(OtherOrigin(companionObject), ACC_PUBLIC | ACC_STATIC | ACC_FINAL, field.name, field.type.getDescriptor(), null, null);
 
-        StackValue.Field deprecatedField = StackValue.deprecatedCompanionObjectAccessor(companionObjectDescriptor, typeMapper);
-        FieldVisitor fv = v.newField(OtherOrigin(companionObject), ACC_PUBLIC | ACC_STATIC | ACC_FINAL | ACC_DEPRECATED,
-                                     deprecatedField.name, deprecatedField.type.getDescriptor(), null, null);
-
-        fv.visitAnnotation(asmDescByFqNameWithoutInnerClasses(new FqName("java.lang.Deprecated")), true).visitEnd();
-
         if (state.getClassBuilderMode() != ClassBuilderMode.FULL) return;
 
         if (!isCompanionObjectWithBackingFieldsInOuter(companionObjectDescriptor)) {
@@ -1074,7 +1067,6 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
         codegen.v.dup();
         StackValue instance = StackValue.onStack(typeMapper.mapClass(companionObject));
         StackValue.singleton(companionObject, typeMapper).store(instance, codegen.v, true);
-        StackValue.deprecatedCompanionObjectAccessor(companionObject, typeMapper).store(instance, codegen.v, true);
     }
 
     private void generatePrimaryConstructor(final DelegationFieldsInfo delegationFieldsInfo) {

compiler/backend/src/org/jetbrains/kotlin/codegen/StackValue.java

@@ -552,10 +552,6 @@ public abstract class StackValue {
         return field(FieldInfo.createForSingleton(classDescriptor, typeMapper));
     }
 
-    public static Field deprecatedCompanionObjectAccessor(ClassDescriptor classDescriptor, JetTypeMapper typeMapper) {
-        return field(FieldInfo.deprecatedFieldForCompanionObject(classDescriptor, typeMapper));
-    }
-
     public static StackValue operation(Type type, Function1<InstructionAdapter, Unit> lambda) {
         return new OperationStackValue(type, lambda);
     }

compiler/light-classes/src/org/jetbrains/kotlin/asJava/LightClassUtil.java

@@ -154,9 +154,8 @@ public class LightClassUtil {
         PsiClass outerPsiClass = getWrappingClass(companionObject);
         if (outerPsiClass != null) {
             for (PsiField fieldOfParent : outerPsiClass.getFields()) {
-                if (!(fieldOfParent instanceof KotlinLightElement)) continue;
+                if ((fieldOfParent instanceof KotlinLightElement) &&
-                if (((KotlinLightElement<?, ?>) fieldOfParent).getOrigin() == companionObject &&
+                    ((KotlinLightElement<?, ?>) fieldOfParent).getOrigin() == companionObject) {
-                    fieldOfParent.getName().equals(companionObject.getName())) { // TODO this check is relevant while light class has deprecated OBJECT$ field
                     return fieldOfParent;
                 }
             }

compiler/testData/asJava/lightClasses/nullabilityAnnotations/ClassObjectField.java

@@ -3,11 +3,6 @@ public final class ClassObjectField {
     public static final java.lang.String x = "";
     private static final java.lang.String y = "";
     public static final ClassObjectField.Companion Companion;
-    /**
-     * @deprecated
-     */
-    @java.lang.Deprecated
-    public static final ClassObjectField.Companion OBJECT$;
 
     public ClassObjectField() { /* compiled code */ }
 

compiler/testData/asJava/lightClasses/nullabilityAnnotations/TraitClassObjectField.java

@@ -1,10 +1,5 @@
 public interface TraitClassObjectField {
     TraitClassObjectField.Companion Companion;
-    /**
-     * @deprecated
-     */
-    @java.lang.Deprecated
-    TraitClassObjectField.Companion OBJECT$;
     @org.jetbrains.annotations.Nullable
     java.lang.String x = "";
 

compiler/testData/codegen/boxWithJava/classObjectAccessor/J.java

@@ -1,5 +1,5 @@
 public class J {
     public static int f() {
-       return A.Companion.getI1() + A.OBJECT$.getI2() + B.Named.getI1() + B.OBJECT$.getI2();
+       return A.Companion.getI1() + A.Companion.getI2() + B.Named.getI1() + B.Named.getI2();
     }
 }

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObject.kt

@@ -3,9 +3,3 @@ class C {
 
     val <!REDECLARATION!>Companion<!> = C
 }
-
-class D {
-    companion <!CONFLICTING_JVM_DECLARATIONS!>object<!> {}
-
-    <!CONFLICTING_JVM_DECLARATIONS!>val `OBJECT$`<!> = D
-}

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObject.txt

@@ -14,18 +14,3 @@ internal final class C {
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
 }
-
-internal final class D {
-    public constructor D()
-    internal final val `OBJECT$`: D.Companion
-    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
-    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
-
-    public companion object Companion {
-        private constructor Companion()
-        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
-        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
-        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
-    }
-}

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedFieldObject.kt

@@ -11,11 +11,3 @@ class C {
     }
 
 }
-
-class D {
-    companion <!CONFLICTING_JVM_DECLARATIONS!>object<!> {
-        <!CONFLICTING_JVM_DECLARATIONS!>val `OBJECT$`<!> = this
-    }
-
-    val `OBJECT$` = D
-}

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedFieldObject.txt

@@ -29,19 +29,3 @@ internal final class C {
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
 }
-
-internal final class D {
-    public constructor D()
-    internal final val `OBJECT$`: D.Companion
-    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
-    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
-    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
-
-    public companion object Companion {
-        private constructor Companion()
-        internal final val `OBJECT$`: D.Companion
-        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
-        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
-        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
-    }
-}

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java

@@ -45,10 +45,6 @@ public final class JvmAbi {
     public static final String KOTLIN_PACKAGE_FIELD_NAME = "$kotlinPackage";
     public static final ClassId REFLECTION_FACTORY_IMPL = ClassId.topLevel(new FqName("kotlin.reflect.jvm.internal.ReflectionFactoryImpl"));
 
-    //TODO: To be removed after kotlin M11
-    @Deprecated
-    public static final String DEPRECATED_COMPANION_OBJECT_FIELD = "OBJECT$";
-
     @NotNull
     public static String getSyntheticMethodNameForAnnotatedProperty(@NotNull Name propertyName) {
         return propertyName.asString() + ANNOTATED_PROPERTY_METHOD_NAME_SUFFIX;

idea/idea-completion/testData/injava/ClassObjectField.java

@@ -5,4 +5,3 @@ public class Testing {
 }
 
 // EXIST: Companion
-// EXIST: OBJECT$

idea/testData/checker/duplicateJvmSignature/fields/classObjectCopiedFieldObject.kt

@@ -11,11 +11,3 @@ class C {
     }
 
 }
-
-class D {
-    companion <error>object A</error> {
-        <error>val `OBJECT$`</error> = this
-    }
-
-    val `OBJECT$` = D
-}

idea/testData/resolve/referenceInJava/DeprecatedClassObjectField.java

@@ -1,7 +0,0 @@
-public class ClassObjectField {
-    public static void foo() {
-        k.ClassWithClassObject.OB<caret>JECT$.f();
-    }
-}
-
-// REF: companion object of (k).ClassWithClassObject

idea/tests/org/jetbrains/kotlin/idea/javaFacade/JetJavaFacadeTest.java

@@ -27,7 +27,6 @@ import org.jetbrains.kotlin.asJava.LightClassUtil;
 import org.jetbrains.kotlin.idea.test.JetLightCodeInsightFixtureTestCase;
 import org.jetbrains.kotlin.idea.test.JetLightProjectDescriptor;
 import org.jetbrains.kotlin.idea.test.PluginTestCaseBase;
-import org.jetbrains.kotlin.load.java.JvmAbi;
 import org.jetbrains.kotlin.name.SpecialNames;
 import org.jetbrains.kotlin.psi.*;
 
@@ -199,14 +198,6 @@ public class JetJavaFacadeTest extends JetLightCodeInsightFixtureTestCase {
         assertTrue(instance.hasModifierProperty(PsiModifier.STATIC));
         assertTrue(instance.hasModifierProperty(PsiModifier.FINAL));
 
-        PsiField deprecatedAccessor = theClass.findFieldByName(JvmAbi.DEPRECATED_COMPANION_OBJECT_FIELD, false);
-        assertNotNull(deprecatedAccessor);
-        assertEquals("foo.TheClass." + defaultCompanionObjectName, deprecatedAccessor.getType().getCanonicalText());
-        assertTrue(deprecatedAccessor.hasModifierProperty(PsiModifier.PUBLIC));
-        assertTrue(deprecatedAccessor.hasModifierProperty(PsiModifier.STATIC));
-        assertTrue(deprecatedAccessor.hasModifierProperty(PsiModifier.FINAL));
-        assertTrue(deprecatedAccessor.isDeprecated());
-
         PsiMethod[] methods = classObjectClass.findMethodsByName("getOut", false);
 
         assertEquals("java.io.PrintStream", methods[0].getReturnType().getCanonicalText());

idea/tests/org/jetbrains/kotlin/idea/resolve/ReferenceResolveInJavaTestGenerated.java

@@ -77,12 +77,6 @@ public class ReferenceResolveInJavaTestGenerated extends AbstractReferenceResolv
         doTest(fileName);
     }
 
-    @TestMetadata("DeprecatedClassObjectField.java")
-    public void testDeprecatedClassObjectField() throws Exception {
-        String fileName = JetTestUtils.navigationMetadata("idea/testData/resolve/referenceInJava/DeprecatedClassObjectField.java");
-        doTest(fileName);
-    }
-
     @TestMetadata("EnumEntry.java")
     public void testEnumEntry() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/resolve/referenceInJava/EnumEntry.java");

libraries/tools/kotlin-annotation-processing/src/test/resources/parse/nestedClasses/annotations.txt

@@ -6,5 +6,3 @@ m 1 0/SomeClass$Companion access$init$0
 c 0 0/SomeClass$SomeInnerObject
 c 0 0/SomeClass$InnerClass
 c 0 0/SomeClass$NestedClass
-a java.lang.Deprecated 2
-f 2 0/SomeClass OBJECT$

libraries/tools/kotlin-annotation-processing/src/test/resources/parse/nestedClasses/parsed.txt

@@ -1,4 +1,3 @@
-java.lang.Deprecated org.test.SomeClass OBJECT$
 javax.inject.Named org.test.SomeClass.Companion
 javax.inject.Named org.test.SomeClass.InnerClass
 javax.inject.Named org.test.SomeClass.NestedClass

libraries/tools/kotlin-annotation-processing/src/test/resources/parse/platformStatic/annotations.txt

@@ -5,7 +5,5 @@ a kotlin.inline 1
 m 1 0/SomeClass$Companion a
 a org.jetbrains.annotations.NotNull 2
 m 2 0/SomeClass$Companion access$init$0
-a java.lang.Deprecated 3
-f 3 0/SomeClass OBJECT$
 m 0 0/SomeClass a
 m 1 0/SomeClass a

libraries/tools/kotlin-annotation-processing/src/test/resources/parse/platformStatic/parsed.txt

@@ -1,4 +1,3 @@
-java.lang.Deprecated org.test.SomeClass OBJECT$
 kotlin.inline org.test.SomeClass.Companion a
 kotlin.platform.platformStatic org.test.SomeClass.Companion a
 org.jetbrains.annotations.NotNull org.test.SomeClass.Companion access$init$0

plugins/annotation-collector/testData/collectToFile/nestedClasses/annotations.txt

@@ -5,4 +5,3 @@ c 0 0/SomeClass$SomeInnerObject
 c 0 0/SomeClass$InnerClass
 c 0 0/SomeClass$InnerClass$InnerClassInInnerClass
 c 0 0/SomeClass$NestedClass
-f 0 0/SomeClass OBJECT$

plugins/annotation-collector/testData/collectToFile/platformStatic/annotations.txt

@@ -3,7 +3,5 @@ p org.test 0
 m 0 0/SomeClass$Companion a
 a kotlin.inline 1
 m 1 0/SomeClass$Companion a
-a java.lang.Deprecated 2
-f 2 0/SomeClass OBJECT$
 m 0 0/SomeClass a
 m 1 0/SomeClass a