Refactoring of repeatable on retention SOURCE check (correct additional checker usage)

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

@@ -185,7 +185,7 @@ public abstract class AnnotationCodegen {
     private void generateTargetAnnotation(@NotNull ClassDescriptor classDescriptor, @NotNull Set<String> annotationDescriptorsAlreadyPresent) {
         String descriptor = Type.getType(Target.class).getDescriptor();
         if (!annotationDescriptorsAlreadyPresent.add(descriptor)) return;
-        Set<KotlinTarget> targets = AnnotationChecker.INSTANCE$.possibleTargetSet(classDescriptor);
+        Set<KotlinTarget> targets = AnnotationChecker.Companion.possibleTargetSet(classDescriptor);
         Set<ElementType> javaTargets;
         if (targets == null) {
             javaTargets = getJavaTargetList(classDescriptor);

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/platform/JvmPlatformConfigurator.kt

@@ -82,7 +82,7 @@ public object JvmPlatformConfigurator : PlatformConfigurator(
 
         additionalSymbolUsageValidators = listOf(),
 
-        additionalAnnotationChecker = RepeatableAnnotationChecker
+        additionalAnnotationCheckers = listOf(RepeatableAnnotationChecker)
 ) {
 
     override fun configure(container: StorageComponentContainer) {

compiler/frontend/src/org/jetbrains/kotlin/resolve/AnnotationChecker.kt

@@ -29,9 +29,7 @@ import org.jetbrains.kotlin.descriptors.annotations.KotlinTarget
 import org.jetbrains.kotlin.resolve.descriptorUtil.isRepeatableAnnotation
 import org.jetbrains.kotlin.descriptors.annotations.KotlinTarget.*
 
-public object AnnotationChecker {
+public class AnnotationChecker(private val additionalCheckers: Iterable<AdditionalAnnotationChecker>) {
-
-    public var additionalChecker: AdditionalAnnotationChecker? = null
 
     public fun check(annotated: JetAnnotated, trace: BindingTrace, descriptor: ClassDescriptor? = null) {
         if (annotated is JetTypeParameter) return // TODO: support type parameter annotations
@@ -71,7 +69,23 @@ public object AnnotationChecker {
                 trace.report(Errors.REPEATED_ANNOTATION.on(entry));
             }
         }
-        additionalChecker?.checkEntries(entries, actualTargets, trace)
+        additionalCheckers.forEach { it.checkEntries(entries, actualTargets, trace) }
+    }
+
+    private fun checkAnnotationEntry(entry: JetAnnotationEntry, actualTargets: List<KotlinTarget>, trace: BindingTrace) {
+        val possibleTargets = possibleTargetSet(entry, trace)
+        if (actualTargets.any { it in possibleTargets }) return
+        trace.report(Errors.WRONG_ANNOTATION_TARGET.on(entry, actualTargets.firstOrNull()?.description ?: "unidentified target"))
+    }
+
+    companion object {
+
+        private fun possibleTargetSet(entry: JetAnnotationEntry, trace: BindingTrace): Set<KotlinTarget> {
+            val descriptor = trace.get(BindingContext.ANNOTATION, entry) ?: return KotlinTarget.DEFAULT_TARGET_SET
+            // For descriptor with error type, all targets are considered as possible
+            if (descriptor.type.isError) return KotlinTarget.ALL_TARGET_SET
+            val classDescriptor = TypeUtils.getClassDescriptor(descriptor.type) ?: return KotlinTarget.DEFAULT_TARGET_SET
+            return possibleTargetSet(classDescriptor) ?: KotlinTarget.DEFAULT_TARGET_SET
         }
 
         public fun possibleTargetSet(classDescriptor: ClassDescriptor): Set<KotlinTarget>? {
@@ -84,20 +98,6 @@ public object AnnotationChecker {
             }.filterNotNull().toSet()
         }
 
-    private fun possibleTargetSet(entry: JetAnnotationEntry, trace: BindingTrace): Set<KotlinTarget> {
-        val descriptor = trace.get(BindingContext.ANNOTATION, entry) ?: return KotlinTarget.DEFAULT_TARGET_SET
-        // For descriptor with error type, all targets are considered as possible
-        if (descriptor.type.isError) return KotlinTarget.ALL_TARGET_SET
-        val classDescriptor = TypeUtils.getClassDescriptor(descriptor.type) ?: return KotlinTarget.DEFAULT_TARGET_SET
-        return possibleTargetSet(classDescriptor) ?: KotlinTarget.DEFAULT_TARGET_SET
-    }
-
-    private fun checkAnnotationEntry(entry: JetAnnotationEntry, actualTargets: List<KotlinTarget>, trace: BindingTrace) {
-        val possibleTargets = possibleTargetSet(entry, trace)
-        if (actualTargets.any { it in possibleTargets }) return
-        trace.report(Errors.WRONG_ANNOTATION_TARGET.on(entry, actualTargets.firstOrNull()?.description ?: "unidentified target"))
-    }
-
         public fun getActualTargetList(annotated: JetElement, descriptor: ClassDescriptor?): List<KotlinTarget> {
             return when (annotated) {
                 is JetClassOrObject -> descriptor?.let { KotlinTarget.classActualTargets(it) } ?: listOf(CLASSIFIER)
@@ -133,6 +133,7 @@ public object AnnotationChecker {
                 else -> listOf()
             }
         }
+    }
 }
 
 public interface AdditionalAnnotationChecker {

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

@@ -54,7 +54,7 @@ import static org.jetbrains.kotlin.types.TypeUtils.NO_EXPECTED_TYPE;
 
 public class BodyResolver {
     @NotNull private final ScriptBodyResolver scriptBodyResolverResolver;
-    @NotNull private final ModifiersChecker modifiersChecker;
+    @NotNull private final AnnotationChecker annotationChecker;
     @NotNull private final ExpressionTypingServices expressionTypingServices;
     @NotNull private final CallResolver callResolver;
     @NotNull private final ObservableBindingTrace trace;
@@ -78,7 +78,7 @@ public class BodyResolver {
             @NotNull ScriptBodyResolver scriptBodyResolverResolver,
             @NotNull BindingTrace trace,
             @NotNull ValueParameterResolver valueParameterResolver,
-            @NotNull ModifiersChecker modifiersChecker
+            @NotNull AnnotationChecker annotationChecker
     ) {
         this.annotationResolver = annotationResolver;
         this.bodyResolveCache = bodyResolveCache;
@@ -89,7 +89,7 @@ public class BodyResolver {
         this.expressionTypingServices = expressionTypingServices;
         this.functionAnalyzerExtension = functionAnalyzerExtension;
         this.scriptBodyResolverResolver = scriptBodyResolverResolver;
-        this.modifiersChecker = modifiersChecker;
+        this.annotationChecker = annotationChecker;
         this.trace = new ObservableBindingTrace(trace);
         this.valueParameterResolver = valueParameterResolver;
     }
@@ -507,7 +507,7 @@ public class BodyResolver {
     }
 
     private void processModifiersOnInitializer(@NotNull JetModifierListOwner owner, @NotNull JetScope scope) {
-        AnnotationChecker.INSTANCE$.check(owner, trace, null);
+        annotationChecker.check(owner, trace, null);
         ModifierCheckerCore.INSTANCE$.check(owner, trace, null);
         JetModifierList modifierList = owner.getModifierList();
         if (modifierList == null) return;

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

@@ -47,21 +47,24 @@ public class DeclarationsChecker {
     @NotNull private final BindingTrace trace;
     @NotNull private final ModifiersChecker.ModifiersCheckingProcedure modifiersChecker;
     @NotNull private final DescriptorResolver descriptorResolver;
+    @NotNull private final AnnotationChecker annotationChecker;
 
     public DeclarationsChecker(
             @NotNull DescriptorResolver descriptorResolver,
             @NotNull ModifiersChecker modifiersChecker,
+            @NotNull AnnotationChecker annotationChecker,
             @NotNull BindingTrace trace
     ) {
         this.descriptorResolver = descriptorResolver;
         this.modifiersChecker = modifiersChecker.withTrace(trace);
+        this.annotationChecker = annotationChecker;
         this.trace = trace;
     }
 
     public void process(@NotNull BodiesResolveContext bodiesResolveContext) {
         for (JetFile file : bodiesResolveContext.getFiles()) {
             checkModifiersAndAnnotationsInPackageDirective(file);
-            AnnotationChecker.INSTANCE$.check(file, trace, null);
+            annotationChecker.check(file, trace, null);
         }
 
         Map<JetClassOrObject, ClassDescriptorWithResolutionScopes> classes = bodiesResolveContext.getDeclaredClasses();
@@ -133,7 +136,7 @@ public class DeclarationsChecker {
                 }
             }
         }
-        AnnotationChecker.INSTANCE$.check(packageDirective, trace, null);
+        annotationChecker.check(packageDirective, trace, null);
         ModifierCheckerCore.INSTANCE$.check(packageDirective, trace, null);
     }
 
@@ -279,7 +282,7 @@ public class DeclarationsChecker {
             if (typeParameter != null) {
                 DescriptorResolver.checkConflictingUpperBounds(trace, typeParameter, jetTypeParameter);
             }
-            AnnotationChecker.INSTANCE$.check(jetTypeParameter, trace, null);
+            annotationChecker.check(jetTypeParameter, trace, null);
         }
     }
 

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

@@ -192,7 +192,7 @@ public class ModifiersChecker {
             checkPlatformNameApplicability(descriptor);
             runDeclarationCheckers(modifierListOwner, descriptor);
             ClassDescriptor classDescriptor = descriptor instanceof ClassDescriptor ? (ClassDescriptor) descriptor : null;
-            AnnotationChecker.INSTANCE$.check(modifierListOwner, trace, classDescriptor);
+            annotationChecker.check(modifierListOwner, trace, classDescriptor);
         }
 
         public void checkModifiersForLocalDeclaration(
@@ -201,7 +201,7 @@ public class ModifiersChecker {
         ) {
             checkPlatformNameApplicability(descriptor);
             runDeclarationCheckers(modifierListOwner, descriptor);
-            AnnotationChecker.INSTANCE$.check(modifierListOwner, trace,
+            annotationChecker.check(modifierListOwner, trace,
                                               descriptor instanceof ClassDescriptor ? (ClassDescriptor) descriptor : null);
             ModifierCheckerCore.INSTANCE$.check(modifierListOwner, trace, descriptor);
         }
@@ -285,10 +285,14 @@ public class ModifiersChecker {
         }
     }
 
+    @NotNull
+    private final AnnotationChecker annotationChecker;
+
     @NotNull
     private final Iterable<DeclarationChecker> declarationCheckers;
 
-    public ModifiersChecker(@NotNull Iterable<DeclarationChecker> declarationCheckers) {
+    public ModifiersChecker(@NotNull AnnotationChecker annotationChecker, @NotNull Iterable<DeclarationChecker> declarationCheckers) {
+        this.annotationChecker = annotationChecker;
         this.declarationCheckers = declarationCheckers;
     }
 

compiler/frontend/src/org/jetbrains/kotlin/resolve/TargetPlatform.kt

@@ -33,7 +33,7 @@ public abstract class TargetPlatform(
     public abstract val platformConfigurator: PlatformConfigurator
 
     public object Default : TargetPlatform("Default") {
-        override val platformConfigurator = PlatformConfigurator(DynamicTypesSettings(), listOf(), listOf(), listOf(), listOf())
+        override val platformConfigurator = PlatformConfigurator(DynamicTypesSettings(), listOf(), listOf(), listOf(), listOf(), listOf())
     }
 }
 
@@ -49,7 +49,7 @@ public open class PlatformConfigurator(
         additionalCallCheckers: List<CallChecker>,
         additionalTypeCheckers: List<AdditionalTypeChecker>,
         additionalSymbolUsageValidators: List<SymbolUsageValidator>,
-        private val additionalAnnotationChecker: AdditionalAnnotationChecker? = null
+        private val additionalAnnotationCheckers: List<AdditionalAnnotationChecker>
 ) {
 
     private val declarationCheckers: List<DeclarationChecker> = DEFAULT_DECLARATION_CHECKERS + additionalDeclarationCheckers
@@ -64,7 +64,7 @@ public open class PlatformConfigurator(
             callCheckers.forEach { useInstance(it) }
             typeCheckers.forEach { useInstance(it) }
             useInstance(symbolUsageValidator)
+            additionalAnnotationCheckers.forEach { useInstance(it) }
         }
-        AnnotationChecker.additionalChecker = additionalAnnotationChecker
     }
 }

compiler/frontend/src/org/jetbrains/kotlin/types/expressions/ExpressionTypingServices.java

@@ -49,14 +49,17 @@ public class ExpressionTypingServices {
     private final ExpressionTypingFacade expressionTypingFacade;
     private final ExpressionTypingComponents expressionTypingComponents;
 
+    @NotNull AnnotationChecker annotationChecker;
     @NotNull private final StatementFilter statementFilter;
 
     public ExpressionTypingServices(
             @NotNull ExpressionTypingComponents components,
+            @NotNull AnnotationChecker annotationChecker,
             @NotNull StatementFilter statementFilter,
             @NotNull ExpressionTypingVisitorDispatcher.ForDeclarations facade
     ) {
         this.expressionTypingComponents = components;
+        this.annotationChecker = annotationChecker;
         this.statementFilter = statementFilter;
         this.expressionTypingFacade = facade;
     }
@@ -227,7 +230,8 @@ public class ExpressionTypingServices {
             return TypeInfoFactoryPackage.createTypeInfo(expressionTypingComponents.builtIns.getUnitType(), context);
         }
 
-        ExpressionTypingInternals blockLevelVisitor = new ExpressionTypingVisitorDispatcher.ForBlock(expressionTypingComponents, scope);
+        ExpressionTypingInternals blockLevelVisitor = new ExpressionTypingVisitorDispatcher.ForBlock(
+                expressionTypingComponents, annotationChecker, scope);
         ExpressionTypingContext newContext = context.replaceScope(scope).replaceExpectedType(NO_EXPECTED_TYPE);
 
         JetTypeInfo result = TypeInfoFactoryPackage.noTypeInfo(context);
@@ -260,7 +264,7 @@ public class ExpressionTypingServices {
                 newContext = newContext.replaceDataFlowInfo(newDataFlowInfo);
                 // We take current data flow info if jump there is not possible
             }
-            blockLevelVisitor = new ExpressionTypingVisitorDispatcher.ForBlock(expressionTypingComponents, scope);
+            blockLevelVisitor = new ExpressionTypingVisitorDispatcher.ForBlock(expressionTypingComponents, annotationChecker, scope);
         }
         return result.replaceJumpOutPossible(jumpOutPossible).replaceJumpFlowInfo(beforeJumpInfo);
     }

compiler/frontend/src/org/jetbrains/kotlin/types/expressions/ExpressionTypingVisitorDispatcher.java

@@ -46,8 +46,8 @@ public abstract class ExpressionTypingVisitorDispatcher extends JetVisitor<JetTy
     private static final Logger LOG = Logger.getInstance(ExpressionTypingVisitor.class);
 
     public static class ForDeclarations extends ExpressionTypingVisitorDispatcher {
-        public ForDeclarations(@NotNull ExpressionTypingComponents components) {
+        public ForDeclarations(@NotNull ExpressionTypingComponents components, @NotNull AnnotationChecker annotationChecker) {
-            super(components);
+            super(components, annotationChecker);
         }
 
         @Override
@@ -64,9 +64,10 @@ public abstract class ExpressionTypingVisitorDispatcher extends JetVisitor<JetTy
 
         public ForBlock(
                 @NotNull ExpressionTypingComponents components,
+                @NotNull AnnotationChecker annotationChecker,
                 @NotNull WritableScope writableScope
         ) {
-            super(components);
+            super(components, annotationChecker);
             this.visitorForBlock = new ExpressionTypingVisitorForStatements(
                     this, writableScope, basic, controlStructures, patterns, functions
             );
@@ -79,15 +80,18 @@ public abstract class ExpressionTypingVisitorDispatcher extends JetVisitor<JetTy
     }
 
     private final ExpressionTypingComponents components;
+    @NotNull private final AnnotationChecker annotationChecker;
     protected final BasicExpressionTypingVisitor basic;
     protected final FunctionsTypingVisitor functions;
     protected final ControlStructureTypingVisitor controlStructures;
     protected final PatternMatchingTypingVisitor patterns;
 
     private ExpressionTypingVisitorDispatcher(
-            @NotNull ExpressionTypingComponents components
+            @NotNull ExpressionTypingComponents components,
+            @NotNull AnnotationChecker annotationChecker
     ) {
         this.components = components;
+        this.annotationChecker = annotationChecker;
         this.basic = new BasicExpressionTypingVisitor(this);
         this.controlStructures = new ControlStructureTypingVisitor(this);
         this.patterns = new PatternMatchingTypingVisitor(this);
@@ -128,7 +132,7 @@ public abstract class ExpressionTypingVisitorDispatcher extends JetVisitor<JetTy
     @NotNull
     public final JetTypeInfo getTypeInfo(@NotNull JetExpression expression, ExpressionTypingContext context) {
         JetTypeInfo result = getTypeInfo(expression, context, this);
-        AnnotationChecker.INSTANCE$.checkExpression(expression, context.trace);
+        annotationChecker.checkExpression(expression, context.trace);
         return result;
     }
 

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/JsPlatformConfigurator.kt

@@ -27,7 +27,8 @@ public object JsPlatformConfigurator : PlatformConfigurator(
         additionalDeclarationCheckers = listOf(NativeInvokeChecker(), NativeGetterChecker(), NativeSetterChecker(), ClassDeclarationChecker()),
         additionalCallCheckers = listOf(),
         additionalTypeCheckers = listOf(),
-        additionalSymbolUsageValidators = listOf()
+        additionalSymbolUsageValidators = listOf(),
+        additionalAnnotationCheckers = listOf()
 ) {
     override fun configure(container: StorageComponentContainer) {
         super.configure(container)