Support visibility for protected static members

#KT-2999 Fixed

compiler/android-tests/tests/org/jetbrains/jet/compiler/android/SpecialFiles.java

@@ -102,7 +102,7 @@ public class SpecialFiles {
         excludedFiles.add("forwardTypeParameter.jet"); // Commented
         excludedFiles.add("kt259.jet"); // Commented
         excludedFiles.add("classObjectMethod.jet"); // Commented
-        
+
         excludedFiles.add("inRangeConditionsInWhen.jet"); // Commented
         excludedFiles.add("kt1592.kt"); // Codegen don't execute blackBoxFile() on it
 
@@ -115,7 +115,6 @@ public class SpecialFiles {
         excludedFiles.add("kt684.jet"); // StackOverflow with StringBuilder (escape())
 
         excludedFiles.add("kt344.jet"); // Bug KT-2251
-        excludedFiles.add("kt529.kt");  // Bug
 
         excludedFiles.add("noClassObjectForJavaClass.kt");
 
@@ -125,6 +124,20 @@ public class SpecialFiles {
 
         excludedFiles.add("nestedInPackage.kt"); // Custom packages are not supported
         excludedFiles.add("importNestedClass.kt"); // Won't work when moved to another package
+
+        excludedFiles.add("protectedStaticClass.kt");                       // Java
+        excludedFiles.add("protectedStaticClass2.kt");                      // Java
+        excludedFiles.add("protectedStaticFun.kt");                         // Java
+        excludedFiles.add("protectedStaticFunCallInConstructor.kt");        // Java
+        excludedFiles.add("protectedStaticFunClassObject.kt");              // Java
+        excludedFiles.add("protectedStaticFunGenericClass.kt");             // Java
+        excludedFiles.add("protectedStaticFunNestedStaticClass.kt");        // Java
+        excludedFiles.add("protectedStaticFunNestedStaticClass2.kt");       // Java
+        excludedFiles.add("protectedStaticFunNestedStaticGenericClass.kt"); // Java
+        excludedFiles.add("protectedStaticFunNotDirectSuperClass.kt");      // Java
+        excludedFiles.add("protectedStaticFunObject.kt");                   // Java
+        excludedFiles.add("protectedStaticProperty.kt");                    // Java
+
     }
 
     private SpecialFiles() {

compiler/backend/src/org/jetbrains/jet/codegen/AsmUtil.java

@@ -68,6 +68,7 @@ public class AsmUtil {
     private static final Map<Visibility, Integer> visibilityToAccessFlag = ImmutableMap.<Visibility, Integer>builder()
             .put(Visibilities.PRIVATE, ACC_PRIVATE)
             .put(Visibilities.PROTECTED, ACC_PROTECTED)
+            .put(JavaDescriptorResolver.PROTECTED_STATIC_VISIBILITY, ACC_PROTECTED)
             .put(Visibilities.PUBLIC, ACC_PUBLIC)
             .put(Visibilities.INTERNAL, ACC_PUBLIC)
             .put(Visibilities.LOCAL, NO_FLAG_LOCAL)

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/DescriptorResolverUtils.java

@@ -84,11 +84,20 @@ public final class DescriptorResolverUtils {
                 return Visibilities.INTERNAL;
             }
         }
-        return modifierListOwner.hasModifierProperty(PsiModifier.PUBLIC) ? Visibilities.PUBLIC :
-               (modifierListOwner.hasModifierProperty(PsiModifier.PRIVATE) ? Visibilities.PRIVATE :
-                (modifierListOwner.hasModifierProperty(PsiModifier.PROTECTED) ? Visibilities.PROTECTED :
-                 //Visibilities.PUBLIC));
-                 JavaDescriptorResolver.PACKAGE_VISIBILITY));
+
+        if (modifierListOwner.hasModifierProperty(PsiModifier.PUBLIC)) {
+            return Visibilities.PUBLIC;
+        }
+        if (modifierListOwner.hasModifierProperty(PsiModifier.PRIVATE)) {
+            return Visibilities.PRIVATE;
+        }
+        if (modifierListOwner.hasModifierProperty(PsiModifier.PROTECTED)) {
+            if (modifierListOwner.hasModifierProperty(PsiModifier.STATIC)) {
+                return JavaDescriptorResolver.PROTECTED_STATIC_VISIBILITY;
+            }
+            return Visibilities.PROTECTED;
+        }
+        return JavaDescriptorResolver.PACKAGE_VISIBILITY;
     }
 
     @Nullable

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaDescriptorResolver.java

@@ -55,6 +55,35 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
         }
     };
 
+    public static final Visibility PROTECTED_STATIC_VISIBILITY = new Visibility("protected_static", false) {
+        @Override
+        protected boolean isVisible(@NotNull DeclarationDescriptorWithVisibility what, @NotNull DeclarationDescriptor from) {
+            ClassDescriptor fromClass = DescriptorUtils.getParentOfType(from, ClassDescriptor.class, false);
+            if (fromClass == null) return false;
+
+            ClassDescriptor whatClass;
+            // protected static class
+            if (what instanceof ClassDescriptor) {
+                DeclarationDescriptor containingDeclaration = what.getContainingDeclaration();
+                assert containingDeclaration instanceof ClassDescriptor : "Only static nested classes can have protected_static visibility";
+                whatClass = (ClassDescriptor) containingDeclaration;
+            }
+            // protected static function or property
+            else {
+                DeclarationDescriptor whatDeclarationDescriptor = what.getContainingDeclaration();
+                assert whatDeclarationDescriptor instanceof NamespaceDescriptor : "Only static declarations can have protected_static visibility";
+                whatClass = DescriptorUtils.getClassForCorrespondingJavaNamespace((NamespaceDescriptor) whatDeclarationDescriptor);
+            }
+
+            assert whatClass != null : "Couldn't find ClassDescriptor for protected static member " + what;
+
+            if (DescriptorUtils.isSubclass(fromClass, whatClass)) {
+                return true;
+            }
+            return isVisible(what, fromClass.getContainingDeclaration());
+        }
+    };
+
     private JavaPropertyResolver propertiesResolver;
     private JavaClassResolver classResolver;
     private JavaConstructorResolver constructorResolver;

compiler/frontend/src/org/jetbrains/jet/lang/resolve/DescriptorUtils.java

@@ -23,17 +23,13 @@ import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
 import org.jetbrains.jet.lang.psi.JetElement;
 import org.jetbrains.jet.lang.psi.JetFunction;
-import org.jetbrains.jet.lang.psi.JetPsiUtil;
 import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstant;
 import org.jetbrains.jet.lang.resolve.name.FqName;
 import org.jetbrains.jet.lang.resolve.name.FqNameUnsafe;
 import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
 import org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverValue;
-import org.jetbrains.jet.lang.types.DescriptorSubstitutor;
-import org.jetbrains.jet.lang.types.JetType;
-import org.jetbrains.jet.lang.types.TypeUtils;
-import org.jetbrains.jet.lang.types.Variance;
+import org.jetbrains.jet.lang.types.*;
 import org.jetbrains.jet.lang.types.checker.JetTypeChecker;
 import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
 
@@ -444,4 +440,32 @@ public class DescriptorUtils {
         DeclarationDescriptor containingDeclaration = scope.getContainingDeclaration();
         return getParentOfType(containingDeclaration, ClassDescriptor.class, false);
     }
+
+    @Nullable
+    public static ClassDescriptor getClassForCorrespondingJavaNamespace(@NotNull NamespaceDescriptor correspondingNamespace) {
+        NamespaceDescriptorParent containingDeclaration = correspondingNamespace.getContainingDeclaration();
+        if (!(containingDeclaration instanceof NamespaceDescriptor)) {
+            return null;
+        }
+
+        NamespaceDescriptor namespaceDescriptor = (NamespaceDescriptor) containingDeclaration;
+
+        ClassifierDescriptor classDescriptor = namespaceDescriptor.getMemberScope().getClassifier(correspondingNamespace.getName());
+        if (classDescriptor != null && classDescriptor instanceof ClassDescriptor) {
+            return (ClassDescriptor) classDescriptor;
+        }
+
+        ClassDescriptor classDescriptorForOuterClass = getClassForCorrespondingJavaNamespace(namespaceDescriptor);
+        if (classDescriptorForOuterClass == null) {
+            return null;
+        }
+
+        ClassifierDescriptor innerClassDescriptor =
+                classDescriptorForOuterClass.getUnsubstitutedInnerClassesScope().getClassifier(correspondingNamespace.getName());
+        if (innerClassDescriptor instanceof ClassDescriptor) {
+            return (ClassDescriptor) innerClassDescriptor;
+        }
+        return null;
+    }
+
 }

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass.java

@@ -0,0 +1,10 @@
+import java.lang.String;
+
+public class protectedStaticClass {
+    protected static class Inner {
+        public Inner() {}
+        public String foo() {
+            return "OK";
+        }
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticClass() {
+    fun test(): String {
+        return protectedStaticClass.Inner().foo()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass2.java

@@ -0,0 +1,14 @@
+import java.lang.String;
+
+public class protectedStaticClass2 {
+    public static class A {
+        protected static class B {
+            public B() {
+            }
+
+            public String foo() {
+                return "OK";
+            }
+        }
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass2.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticClass2.A() {
+    fun test(): String {
+        return protectedStaticClass2.A.B().foo()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFun.java

@@ -0,0 +1,5 @@
+public class protectedStaticFun {
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFun.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticFun() {
+    fun test(): String {
+        return protectedStaticFun.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunCallInConstructor.java

@@ -0,0 +1,14 @@
+import java.lang.String;
+
+public class protectedStaticFunCallInConstructor {
+
+    protected final String protectedProperty;
+
+    public protectedStaticFunCallInConstructor(String str) {
+        protectedProperty = str;
+    }
+
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunCallInConstructor.kt

@@ -0,0 +1,9 @@
+class A: protectedStaticFunCallInConstructor(protectedStaticFunCallInConstructor.protectedFun()) {
+  fun test(): String {
+    return protectedProperty!!
+  }
+}
+
+fun box(): String {
+  return A().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunClassObject.java

@@ -0,0 +1,6 @@
+public class protectedStaticFunClassObject {
+
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunClassObject.kt

@@ -0,0 +1,11 @@
+class A {
+  class object: protectedStaticFunClassObject() {
+    fun test(): String {
+      return protectedStaticFunClassObject.protectedFun()!!
+    }
+  }
+}
+
+fun box(): String {
+  return A.test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunGenericClass.java

@@ -0,0 +1,5 @@
+public class protectedStaticFunGenericClass<T> {
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunGenericClass.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticFunGenericClass<String>() {
+    fun test(): String {
+        return protectedStaticFunGenericClass.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass.java

@@ -0,0 +1,7 @@
+public class protectedStaticFunNestedStaticClass {
+    public static class Inner {
+        protected static String protectedFun() {
+            return "OK";
+        }
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticFunNestedStaticClass.Inner() {
+    fun test(): String {
+        return protectedStaticFunNestedStaticClass.Inner.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass2.java

@@ -0,0 +1,9 @@
+public class protectedStaticFunNestedStaticClass2 {
+    public static class A {
+        public static class B {
+            protected static String protectedFun() {
+                return "OK";
+            }
+        }
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass2.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticFunNestedStaticClass2.A.B() {
+    fun test(): String {
+        return protectedStaticFunNestedStaticClass2.A.B.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticGenericClass.java

@@ -0,0 +1,7 @@
+public class protectedStaticFunNestedStaticGenericClass<T> {
+    public static class Inner<S> {
+        protected static String protectedFun() {
+            return "OK";
+        }
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticGenericClass.kt

@@ -0,0 +1,9 @@
+class Derived(): protectedStaticFunNestedStaticGenericClass<String>.Inner<String>() {
+    fun test(): String {
+        return protectedStaticFunNestedStaticGenericClass.Inner.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNotDirectSuperClass.java

@@ -0,0 +1,5 @@
+public class protectedStaticFunNotDirectSuperClass {
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNotDirectSuperClass.kt

@@ -0,0 +1,12 @@
+open class A : protectedStaticFunNotDirectSuperClass() {}
+
+class Derived(): A() {
+    fun test(): String {
+        return protectedStaticFunNotDirectSuperClass.protectedFun()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}
+

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunObject.java

@@ -0,0 +1,6 @@
+public class protectedStaticFunObject {
+
+    protected static String protectedFun() {
+        return "OK";
+    }
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunObject.kt

@@ -0,0 +1,9 @@
+object A: protectedStaticFunObject() {
+  fun test(): String {
+    return protectedStaticFunObject.protectedFun()!!
+  }
+}
+
+fun box(): String {
+  return A.test()
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticProperty.java

@@ -0,0 +1,3 @@
+public class protectedStaticProperty {
+    protected static final String protectedProperty = "OK";
+}

compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticProperty.kt

@@ -0,0 +1,10 @@
+class Derived(): protectedStaticProperty() {
+    fun test(): String {
+        return protectedStaticProperty.protectedProperty!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}
+

compiler/tests/org/jetbrains/jet/codegen/CodegenTestCase.java

@@ -285,6 +285,10 @@ public abstract class CodegenTestCase extends UsefulTestCase {
         }
     }
 
+    protected void blackBoxFileWithJavaByFullPath(@NotNull String ktFile) throws Exception {
+        blackBoxFileWithJava(ktFile.substring("compiler/testData/codegen/".length()), false);
+    }
+
     protected void blackBoxFileWithJava(@NotNull String ktFile) throws Exception {
         blackBoxFileWithJava(ktFile, false);
     }

compiler/tests/org/jetbrains/jet/codegen/generated/VisibilityGenWithJavaTestGenerated.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2010-2012 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.jet.codegen.generated;
+
+import junit.framework.Assert;
+import junit.framework.Test;
+import junit.framework.TestSuite;
+
+import java.io.File;
+import org.jetbrains.jet.JetTestUtils;
+import org.jetbrains.jet.test.InnerTestClasses;
+import org.jetbrains.jet.test.TestMetadata;
+
+import org.jetbrains.jet.codegen.generated.AbstractCodegenTest;
+
+/** This class is generated by {@link org.jetbrains.jet.generators.tests.GenerateTests}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("compiler/testData/codegen/visibility/withJava/protected_static")
+public class VisibilityGenWithJavaTestGenerated extends AbstractCodegenTest {
+    public void testAllFilesPresentInProtected_static() throws Exception {
+        JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.GenerateTests", new File("compiler/testData/codegen/visibility/withJava/protected_static"), "kt", true);
+    }
+    
+    @TestMetadata("protectedStaticClass.kt")
+    public void testProtectedStaticClass() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass.kt");
+    }
+    
+    @TestMetadata("protectedStaticClass2.kt")
+    public void testProtectedStaticClass2() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticClass2.kt");
+    }
+    
+    @TestMetadata("protectedStaticFun.kt")
+    public void testProtectedStaticFun() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFun.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunCallInConstructor.kt")
+    public void testProtectedStaticFunCallInConstructor() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunCallInConstructor.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunClassObject.kt")
+    public void testProtectedStaticFunClassObject() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunClassObject.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunGenericClass.kt")
+    public void testProtectedStaticFunGenericClass() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunGenericClass.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunNestedStaticClass.kt")
+    public void testProtectedStaticFunNestedStaticClass() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunNestedStaticClass2.kt")
+    public void testProtectedStaticFunNestedStaticClass2() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticClass2.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunNestedStaticGenericClass.kt")
+    public void testProtectedStaticFunNestedStaticGenericClass() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNestedStaticGenericClass.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunNotDirectSuperClass.kt")
+    public void testProtectedStaticFunNotDirectSuperClass() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunNotDirectSuperClass.kt");
+    }
+    
+    @TestMetadata("protectedStaticFunObject.kt")
+    public void testProtectedStaticFunObject() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticFunObject.kt");
+    }
+    
+    @TestMetadata("protectedStaticProperty.kt")
+    public void testProtectedStaticProperty() throws Exception {
+        blackBoxFileWithJavaByFullPath("compiler/testData/codegen/visibility/withJava/protected_static/protectedStaticProperty.kt");
+    }
+    
+}

generators/org/jetbrains/jet/generators/tests/GenerateTests.java

@@ -95,6 +95,13 @@ public class GenerateTests {
                 testModel("compiler/testData/codegen/multiDecl", "blackBoxFileByFullPath")
         );
 
+        generateTest(
+                "compiler/tests/",
+                "VisibilityGenWithJavaTestGenerated",
+                AbstractCodegenTest.class,
+                testModel("compiler/testData/codegen/visibility/withJava/protected_static", "blackBoxFileWithJavaByFullPath")
+        );
+
         generateTest(
                 "compiler/tests/",
                 "WriteFlagsTestGenerated",