JavaDescriptorSignatureResolver

2012-06-17 00:27:20 +04:00
parent e01b0a3713
commit 9ddbe4a414
4 changed files with 401 additions and 302 deletions
@@ -27,6 +27,7 @@ import org.jetbrains.jet.lang.resolve.java.CompilerDependencies;
 import org.jetbrains.jet.lang.resolve.java.CompilerSpecialMode;
 import com.intellij.openapi.project.Project;
 import org.jetbrains.jet.lang.resolve.java.JavaTypeTransformer;
+import org.jetbrains.jet.lang.resolve.java.JavaDescriptorSignatureResolver;
 import org.jetbrains.jet.lang.resolve.NamespaceFactoryImpl;
 import org.jetbrains.jet.lang.resolve.java.CompilerDependencies;
 import com.intellij.openapi.project.Project;
@@ -46,6 +47,7 @@ public class InjectorForJavaSemanticServices {
    private CompilerSpecialMode compilerSpecialMode;
    private final Project project;
    private JavaTypeTransformer javaTypeTransformer;
+    private JavaDescriptorSignatureResolver javaDescriptorSignatureResolver;
    private NamespaceFactoryImpl namespaceFactory;

    public InjectorForJavaSemanticServices(
@@ -62,6 +64,7 @@ public class InjectorForJavaSemanticServices {
        this.compilerSpecialMode = compilerDependencies.getCompilerSpecialMode();
        this.project = project;
        this.javaTypeTransformer = new JavaTypeTransformer();
+        this.javaDescriptorSignatureResolver = new JavaDescriptorSignatureResolver();
        this.namespaceFactory = new NamespaceFactoryImpl();

        this.javaSemanticServices.setDescriptorResolver(javaDescriptorResolver);
@@ -69,6 +72,7 @@ public class InjectorForJavaSemanticServices {
        this.javaSemanticServices.setTrace(bindingTrace);
        this.javaSemanticServices.setTypeTransformer(javaTypeTransformer);

+        this.javaDescriptorResolver.setJavaDescriptorSignatureResolver(javaDescriptorSignatureResolver);
        this.javaDescriptorResolver.setNamespaceFactory(namespaceFactory);
        this.javaDescriptorResolver.setProject(project);
        this.javaDescriptorResolver.setPsiClassFinder(psiClassFinderForJvm);
@@ -85,6 +89,9 @@ public class InjectorForJavaSemanticServices {
        javaTypeTransformer.setJavaSemanticServices(javaSemanticServices);
        javaTypeTransformer.setResolver(javaDescriptorResolver);

+        javaDescriptorSignatureResolver.setJavaDescriptorResolver(javaDescriptorResolver);
+        javaDescriptorSignatureResolver.setJavaSemanticServices(javaSemanticServices);
+
        namespaceFactory.setConfiguration(javaBridgeConfiguration);
        namespaceFactory.setModuleDescriptor(moduleDescriptor);
        namespaceFactory.setTrace(bindingTrace);
@@ -49,6 +49,7 @@ import org.jetbrains.jet.lang.resolve.TypeHierarchyResolver;
 import org.jetbrains.jet.lang.resolve.ScriptBodyResolver;
 import org.jetbrains.jet.lang.resolve.java.JavaSemanticServices;
 import org.jetbrains.jet.lang.resolve.java.JavaTypeTransformer;
+import org.jetbrains.jet.lang.resolve.java.JavaDescriptorSignatureResolver;
 import com.intellij.openapi.project.Project;
 import org.jetbrains.jet.lang.resolve.TopDownAnalysisParameters;
 import org.jetbrains.jet.lang.resolve.BindingTrace;
@@ -92,6 +93,7 @@ public class InjectorForTopDownAnalyzerForJvm {
    private ScriptBodyResolver scriptBodyResolver;
    private JavaSemanticServices javaSemanticServices;
    private JavaTypeTransformer javaTypeTransformer;
+    private JavaDescriptorSignatureResolver javaDescriptorSignatureResolver;

    public InjectorForTopDownAnalyzerForJvm(
        @NotNull Project project,
@@ -132,6 +134,7 @@ public class InjectorForTopDownAnalyzerForJvm {
        this.scriptBodyResolver = new ScriptBodyResolver();
        this.javaSemanticServices = new JavaSemanticServices();
        this.javaTypeTransformer = new JavaTypeTransformer();
+        this.javaDescriptorSignatureResolver = new JavaDescriptorSignatureResolver();

        this.topDownAnalyzer.setBodyResolver(bodyResolver);
        this.topDownAnalyzer.setContext(topDownAnalysisContext);
@@ -169,6 +172,7 @@ public class InjectorForTopDownAnalyzerForJvm {
        this.javaBridgeConfiguration.setMode(compilerSpecialMode);
        this.javaBridgeConfiguration.setProject(project);

+        javaDescriptorResolver.setJavaDescriptorSignatureResolver(javaDescriptorSignatureResolver);
        javaDescriptorResolver.setNamespaceFactory(namespaceFactory);
        javaDescriptorResolver.setProject(project);
        javaDescriptorResolver.setPsiClassFinder(psiClassFinderForJvm);
@@ -246,6 +250,9 @@ public class InjectorForTopDownAnalyzerForJvm {
        javaTypeTransformer.setJavaSemanticServices(javaSemanticServices);
        javaTypeTransformer.setResolver(javaDescriptorResolver);

+        javaDescriptorSignatureResolver.setJavaDescriptorResolver(javaDescriptorResolver);
+        javaDescriptorSignatureResolver.setJavaSemanticServices(javaSemanticServices);
+
        javaBridgeConfiguration.init();

        psiClassFinderForJvm.initialize();
@@ -77,40 +77,6 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        }
    };

-    private enum TypeParameterDescriptorOrigin {
-        JAVA,
-        KOTLIN,
-    }
-
-    public static class TypeParameterDescriptorInitialization {
-        @NotNull
-        private final TypeParameterDescriptorOrigin origin;
-        @NotNull
-        final TypeParameterDescriptorImpl descriptor;
-        final PsiTypeParameter psiTypeParameter;
-        @Nullable
-        private final List<JetType> upperBoundsForKotlin;
-        @Nullable
-        private final List<JetType> lowerBoundsForKotlin;
-
-        private TypeParameterDescriptorInitialization(@NotNull TypeParameterDescriptorImpl descriptor, @NotNull PsiTypeParameter psiTypeParameter) {
-            this.origin = TypeParameterDescriptorOrigin.JAVA;
-            this.descriptor = descriptor;
-            this.psiTypeParameter = psiTypeParameter;
-            this.upperBoundsForKotlin = null;
-            this.lowerBoundsForKotlin = null;
-        }
-
-        private TypeParameterDescriptorInitialization(@NotNull TypeParameterDescriptorImpl descriptor, @NotNull PsiTypeParameter psiTypeParameter,
-                List<JetType> upperBoundsForKotlin, List<JetType> lowerBoundsForKotlin) {
-            this.origin = TypeParameterDescriptorOrigin.KOTLIN;
-            this.descriptor = descriptor;
-            this.psiTypeParameter = psiTypeParameter;
-            this.upperBoundsForKotlin = upperBoundsForKotlin;
-            this.lowerBoundsForKotlin = lowerBoundsForKotlin;
-        }
-    }
-

    static abstract class ResolverScopeData {
        @Nullable
@@ -185,7 +151,7 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes

    /** Class with instance members */
    static class ResolverBinaryClassData extends ResolverScopeData {
-        private final ClassDescriptorFromJvmBytecode classDescriptor;
+        final ClassDescriptorFromJvmBytecode classDescriptor;

        ResolverBinaryClassData(@NotNull PsiClass psiClass, @NotNull FqName fqName, @NotNull ClassDescriptorFromJvmBytecode classDescriptor) {
            super(psiClass, null, fqName, false, classDescriptor);
@@ -199,7 +165,7 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes

        static final ResolverBinaryClassData NEGATIVE = new ResolverBinaryClassData(true);

-        List<TypeParameterDescriptorInitialization> typeParameters;
+        List<JavaDescriptorSignatureResolver.TypeParameterDescriptorInitialization> typeParameters;

        @NotNull
        public ClassDescriptor getClassDescriptor() {
@@ -247,6 +213,7 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
    private NamespaceFactory namespaceFactory;
    private BindingTrace trace;
    private PsiClassFinder psiClassFinder;
+    private JavaDescriptorSignatureResolver javaDescriptorSignatureResolver;

    @Inject
    public void setProject(Project project) {
@@ -273,6 +240,10 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        this.psiClassFinder = psiClassFinder;
    }

+    @Inject
+    public void setJavaDescriptorSignatureResolver(JavaDescriptorSignatureResolver javaDescriptorSignatureResolver) {
+        this.javaDescriptorSignatureResolver = javaDescriptorSignatureResolver;
+    }


    @Nullable
@@ -371,10 +342,10 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes

        List<JetType> supertypes = new ArrayList<JetType>();

-        classData.typeParameters = createUninitializedClassTypeParameters(psiClass, classData);
+        classData.typeParameters = javaDescriptorSignatureResolver.createUninitializedClassTypeParameters(psiClass, classData);
        
        List<TypeParameterDescriptor> typeParameters = new ArrayList<TypeParameterDescriptor>();
-        for (TypeParameterDescriptorInitialization typeParameter : classData.typeParameters) {
+        for (JavaDescriptorSignatureResolver.TypeParameterDescriptorInitialization typeParameter : classData.typeParameters) {
            typeParameters.add(typeParameter.descriptor);
        }
        
@@ -394,7 +365,7 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        classData.classDescriptor.createTypeConstructor();
        classData.classDescriptor.setScopeForMemberLookup(new JavaClassMembersScope(semanticServices, classData));

-        initializeTypeParameters(classData.typeParameters, classData.classDescriptor, "class " + psiClass.getQualifiedName());
+        javaDescriptorSignatureResolver.initializeTypeParameters(classData.typeParameters, classData.classDescriptor, "class " + psiClass.getQualifiedName());

        // TODO: ugly hack: tests crash if initializeTypeParameters called with class containing proper supertypes
        supertypes.addAll(getSupertypes(new PsiClassWrapper(psiClass), classData, classData.getTypeParameters()));
@@ -576,166 +547,13 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        return classData.classDescriptor;
    }

-    private List<TypeParameterDescriptorInitialization> createUninitializedClassTypeParameters(PsiClass psiClass, ResolverBinaryClassData classData) {
-        JetClassAnnotation jetClassAnnotation = JetClassAnnotation.get(psiClass);
-
-        if (jetClassAnnotation.signature().length() > 0) {
-            return resolveClassTypeParametersFromJetSignature(
-                    jetClassAnnotation.signature(), psiClass, classData.classDescriptor);
-        }
-
-        return makeUninitializedTypeParameters(classData.classDescriptor, psiClass.getTypeParameters());
-    }
-
-    @NotNull
-    private PsiTypeParameter getPsiTypeParameterByName(PsiTypeParameterListOwner clazz, String name) {
-        for (PsiTypeParameter typeParameter : clazz.getTypeParameters()) {
-            if (typeParameter.getName().equals(name)) {
-                return typeParameter; 
-            }
-        }
-        throw new IllegalStateException("PsiTypeParameter '" + name + "' is not found");
-    }
-
-
-    private boolean isJavaLangObject(JetType type) {
+    static boolean isJavaLangObject(JetType type) {
        ClassifierDescriptor classifierDescriptor = type.getConstructor().getDeclarationDescriptor();
        return classifierDescriptor instanceof ClassDescriptor &&
               DescriptorUtils.getFQName(classifierDescriptor).equalsTo(JdkNames.JL_OBJECT.getFqName());
    }


-    private abstract class JetSignatureTypeParameterVisitor extends JetSignatureExceptionsAdapter {
-
-        @NotNull
-        private final PsiTypeParameterListOwner psiOwner;
-        @NotNull
-        private final String name;
-        @NotNull
-        private final TypeVariableResolver typeVariableResolver;
-        @NotNull
-        private final TypeParameterDescriptorImpl typeParameterDescriptor;
-
-        protected JetSignatureTypeParameterVisitor(PsiTypeParameterListOwner psiOwner,
-                String name, TypeVariableResolver typeVariableResolver, TypeParameterDescriptorImpl typeParameterDescriptor)
-        {
-            if (name.isEmpty()) {
-                throw new IllegalStateException();
-            }
-
-            this.psiOwner = psiOwner;
-            this.name = name;
-            this.typeVariableResolver = typeVariableResolver;
-            this.typeParameterDescriptor = typeParameterDescriptor;
-        }
-
-        List<JetType> upperBounds = new ArrayList<JetType>();
-        List<JetType> lowerBounds = new ArrayList<JetType>();
-        
-        @Override
-        public JetSignatureVisitor visitClassBound() {
-            return new JetTypeJetSignatureReader(semanticServices, JetStandardLibrary.getInstance(), typeVariableResolver) {
-                @Override
-                protected void done(@NotNull JetType jetType) {
-                    if (isJavaLangObject(jetType)) {
-                        return;
-                    }
-                    upperBounds.add(jetType);
-                }
-            };
-        }
-
-        @Override
-        public JetSignatureVisitor visitInterfaceBound() {
-            return new JetTypeJetSignatureReader(semanticServices, JetStandardLibrary.getInstance(), typeVariableResolver) {
-                @Override
-                protected void done(@NotNull JetType jetType) {
-                    upperBounds.add(jetType);
-                }
-            };
-        }
-
-        @Override
-        public void visitFormalTypeParameterEnd() {
-            PsiTypeParameter psiTypeParameter = getPsiTypeParameterByName(psiOwner, name);
-            TypeParameterDescriptorInitialization typeParameterDescriptorInitialization = new TypeParameterDescriptorInitialization(typeParameterDescriptor, psiTypeParameter, upperBounds, lowerBounds);
-            done(typeParameterDescriptorInitialization);
-        }
-        
-        protected abstract void done(@NotNull TypeParameterDescriptorInitialization typeParameterDescriptor);
-    }
-
-    private class JetSignatureTypeParametersVisitor extends JetSignatureExceptionsAdapter {
-        @NotNull
-        private final DeclarationDescriptor containingDeclaration;
-        @NotNull
-        private final PsiTypeParameterListOwner psiOwner;
-
-        private final List<TypeParameterDescriptor> previousTypeParameters = new ArrayList<TypeParameterDescriptor>();
-        // note changes state in this method
-        private final TypeVariableResolver typeVariableResolver;
-
-
-        private JetSignatureTypeParametersVisitor(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameterListOwner psiOwner, @NotNull String context) {
-            this.containingDeclaration = containingDeclaration;
-            this.psiOwner = psiOwner;
-
-            this.typeVariableResolver = TypeVariableResolvers.typeVariableResolverFromTypeParameters(
-                    previousTypeParameters,
-                    containingDeclaration,
-                    context);
-        }
-
-        private int formalTypeParameterIndex = 0;
-
-
-        List<TypeParameterDescriptorInitialization> r = new ArrayList<TypeParameterDescriptorInitialization>();
-
-        @Override
-        public JetSignatureVisitor visitFormalTypeParameter(final String name, final TypeInfoVariance variance, boolean reified) {
-            TypeParameterDescriptorImpl typeParameter = TypeParameterDescriptorImpl.createForFurtherModification(
-                    containingDeclaration,
-                    Collections.<AnnotationDescriptor>emptyList(), // TODO: wrong
-                    reified,
-                    JetSignatureUtils.translateVariance(variance),
-                    Name.identifier(name),
-                    formalTypeParameterIndex++);
-
-            previousTypeParameters.add(typeParameter);
-
-            return new JetSignatureTypeParameterVisitor(psiOwner, name, typeVariableResolver, typeParameter) {
-                @Override
-                protected void done(@NotNull TypeParameterDescriptorInitialization typeParameterDescriptor) {
-                    r.add(typeParameterDescriptor);
-                    previousTypeParameters.add(typeParameterDescriptor.descriptor);
-                }
-            };
-        }
-    }
-
-    /**
-     * @see #resolveMethodTypeParametersFromJetSignature(String, com.intellij.psi.PsiMethod, org.jetbrains.jet.lang.descriptors.DeclarationDescriptor)
-     */
-    private List<TypeParameterDescriptorInitialization> resolveClassTypeParametersFromJetSignature(String jetSignature,
-            final PsiClass clazz, final ClassDescriptor classDescriptor) {
-        String context = "class " + clazz.getQualifiedName();
-        JetSignatureTypeParametersVisitor jetSignatureTypeParametersVisitor = new JetSignatureTypeParametersVisitor(classDescriptor, clazz, context) {
-            @Override
-            public JetSignatureVisitor visitSuperclass() {
-                // TODO
-                return new JetSignatureAdapter();
-            }
-
-            @Override
-            public JetSignatureVisitor visitInterface() {
-                // TODO
-                return new JetSignatureAdapter();
-            }
-        };
-        new JetSignatureReader(jetSignature).accept(jetSignatureTypeParametersVisitor);
-        return jetSignatureTypeParametersVisitor.r;
-    }
-
    @NotNull
    private ClassOrNamespaceDescriptor resolveParentDescriptor(@NotNull PsiClass psiClass) {
        FqName fqName = new FqName(psiClass.getQualifiedName());
@@ -757,75 +575,6 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        return ns;
    }

-    private List<TypeParameterDescriptorInitialization> makeUninitializedTypeParameters(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameter[] typeParameters) {
-        List<TypeParameterDescriptorInitialization> result = Lists.newArrayList();
-        for (PsiTypeParameter typeParameter : typeParameters) {
-            TypeParameterDescriptorInitialization typeParameterDescriptor = makeUninitializedTypeParameter(containingDeclaration, typeParameter);
-            result.add(typeParameterDescriptor);
-        }
-        return result;
-    }
-
-    @NotNull
-    private TypeParameterDescriptorInitialization makeUninitializedTypeParameter(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameter psiTypeParameter) {
-        TypeParameterDescriptorImpl typeParameterDescriptor = TypeParameterDescriptorImpl.createForFurtherModification(
-                containingDeclaration,
-                Collections.<AnnotationDescriptor>emptyList(), // TODO
-                false,
-                Variance.INVARIANT,
-                Name.identifier(psiTypeParameter.getName()),
-                psiTypeParameter.getIndex()
-        );
-        return new TypeParameterDescriptorInitialization(typeParameterDescriptor, psiTypeParameter);
-    }
-
-    private void initializeTypeParameter(TypeParameterDescriptorInitialization typeParameter, TypeVariableResolver typeVariableByPsiResolver) {
-        TypeParameterDescriptorImpl typeParameterDescriptor = typeParameter.descriptor;
-        if (typeParameter.origin == TypeParameterDescriptorOrigin.KOTLIN) {
-            List<?> upperBounds = typeParameter.upperBoundsForKotlin;
-            if (upperBounds.size() == 0){
-                typeParameterDescriptor.addUpperBound(JetStandardClasses.getNullableAnyType());
-            }
-            else {
-                for (JetType upperBound : typeParameter.upperBoundsForKotlin) {
-                    typeParameterDescriptor.addUpperBound(upperBound);
-                }
-            }
-
-            // TODO: lower bounds
-        }
-        else {
-            PsiClassType[] referencedTypes = typeParameter.psiTypeParameter.getExtendsList().getReferencedTypes();
-            if (referencedTypes.length == 0){
-                typeParameterDescriptor.addUpperBound(JetStandardClasses.getNullableAnyType());
-            }
-            else if (referencedTypes.length == 1) {
-                typeParameterDescriptor.addUpperBound(semanticServices.getTypeTransformer().transformToType(referencedTypes[0], JavaTypeTransformer.TypeUsage.UPPER_BOUND, typeVariableByPsiResolver));
-            }
-            else {
-                for (PsiClassType referencedType : referencedTypes) {
-                    typeParameterDescriptor.addUpperBound(semanticServices.getTypeTransformer().transformToType(referencedType, JavaTypeTransformer.TypeUsage.UPPER_BOUND, typeVariableByPsiResolver));
-                }
-            }
-        }
-        typeParameterDescriptor.setInitialized();
-    }
-
-    private void initializeTypeParameters(List<TypeParameterDescriptorInitialization> typeParametersInitialization, @NotNull DeclarationDescriptor typeParametersOwner, @NotNull String context) {
-        List<TypeParameterDescriptor> prevTypeParameters = new ArrayList<TypeParameterDescriptor>();
-
-        List<TypeParameterDescriptor> typeParameters = Lists.newArrayList();
-        for (TypeParameterDescriptorInitialization typeParameterDescriptor : typeParametersInitialization) {
-            typeParameters.add(typeParameterDescriptor.descriptor);
-        }
-
-        for (TypeParameterDescriptorInitialization psiTypeParameter : typeParametersInitialization) {
-            prevTypeParameters.add(psiTypeParameter.descriptor);
-            initializeTypeParameter(psiTypeParameter,
-                    TypeVariableResolvers.typeVariableResolverFromTypeParameters(typeParameters, typeParametersOwner, context));
-        }
-    }
-
    private Collection<JetType> getSupertypes(PsiClassWrapper psiClass, ResolverBinaryClassData classData, List<TypeParameterDescriptor> typeParameters) {
        ClassDescriptor classDescriptor = classData.classDescriptor;

@@ -1365,14 +1114,14 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
                PsiMethodWrapper method = (PsiMethodWrapper) members.setter.getMember();

                if (anyMember == members.setter) {
-                    typeParameters = resolveMethodTypeParameters(method, propertyDescriptor);
+                    typeParameters = javaDescriptorSignatureResolver.resolveMethodTypeParameters(method, propertyDescriptor);
                }
            }
            if (members.getter != null) {
                PsiMethodWrapper method = (PsiMethodWrapper) members.getter.getMember();

                if (anyMember == members.getter) {
-                    typeParameters = resolveMethodTypeParameters(method, propertyDescriptor);
+                    typeParameters = javaDescriptorSignatureResolver.resolveMethodTypeParameters(method, propertyDescriptor);
                }
            }

@@ -1587,7 +1336,7 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes

        String context = "method " + method.getName() + " in class " + psiClass.getQualifiedName();

-        List<TypeParameterDescriptor> methodTypeParameters = resolveMethodTypeParameters(method, functionDescriptorImpl);
+        List<TypeParameterDescriptor> methodTypeParameters = javaDescriptorSignatureResolver.resolveMethodTypeParameters(method, functionDescriptorImpl);

        TypeVariableResolver methodTypeVariableResolver = TypeVariableResolvers.typeVariableResolverFromTypeParameters(methodTypeParameters, functionDescriptorImpl, context);

@@ -1792,43 +1541,6 @@ public class JavaDescriptorResolver implements DependencyClassByQualifiedNameRes
        }
    }

-    private List<TypeParameterDescriptor> resolveMethodTypeParameters(
-            @NotNull PsiMethodWrapper method,
-            @NotNull DeclarationDescriptor functionDescriptor) {
-
-        List<TypeParameterDescriptorInitialization> typeParametersIntialization;
-        if (method.getJetMethod().typeParameters().length() > 0) {
-            typeParametersIntialization = resolveMethodTypeParametersFromJetSignature(
-                    method.getJetMethod().typeParameters(), method.getPsiMethod(), functionDescriptor);
-        }
-        else {
-            typeParametersIntialization = makeUninitializedTypeParameters(functionDescriptor, method.getPsiMethod().getTypeParameters());
-        }
-
-        String context = "method " + method.getName() + " in class " + method.getPsiMethod().getContainingClass().getQualifiedName();
-        initializeTypeParameters(typeParametersIntialization, functionDescriptor, context);
-        
-        List<TypeParameterDescriptor> typeParameters = Lists.newArrayListWithCapacity(typeParametersIntialization.size());
-        
-        for (TypeParameterDescriptorInitialization tpdi : typeParametersIntialization) {
-            typeParameters.add(tpdi.descriptor);
-        }
-        
-        return typeParameters;
-    }
-
-    /**
-     * @see #resolveClassTypeParametersFromJetSignature(String, com.intellij.psi.PsiClass, org.jetbrains.jet.lang.descriptors.ClassDescriptor)
-     */
-    private List<TypeParameterDescriptorInitialization> resolveMethodTypeParametersFromJetSignature(String jetSignature,
-            final PsiMethod method, final DeclarationDescriptor functionDescriptor)
-    {
-        String context = "method " + method.getName() + " in class " + method.getContainingClass().getQualifiedName();
-        JetSignatureTypeParametersVisitor jetSignatureTypeParametersVisitor = new JetSignatureTypeParametersVisitor(functionDescriptor, method, context);
-        new JetSignatureReader(jetSignature).acceptFormalTypeParametersOnly(jetSignatureTypeParametersVisitor);
-        return jetSignatureTypeParametersVisitor.r;
-    }
-
    private JetType makeReturnType(PsiType returnType, PsiMethodWrapper method,
            @NotNull TypeVariableResolver typeVariableResolver) {

@@ -0,0 +1,373 @@
+/*
+ * 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.lang.resolve.java;
+
+import com.google.common.collect.Lists;
+import com.intellij.psi.PsiClass;
+import com.intellij.psi.PsiClassType;
+import com.intellij.psi.PsiMethod;
+import com.intellij.psi.PsiTypeParameter;
+import com.intellij.psi.PsiTypeParameterListOwner;
+import jet.typeinfo.TypeInfoVariance;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
+import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
+import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor;
+import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptorImpl;
+import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
+import org.jetbrains.jet.lang.resolve.java.kt.JetClassAnnotation;
+import org.jetbrains.jet.lang.resolve.name.Name;
+import org.jetbrains.jet.lang.types.JetType;
+import org.jetbrains.jet.lang.types.Variance;
+import org.jetbrains.jet.lang.types.lang.JetStandardClasses;
+import org.jetbrains.jet.lang.types.lang.JetStandardLibrary;
+import org.jetbrains.jet.rt.signature.JetSignatureAdapter;
+import org.jetbrains.jet.rt.signature.JetSignatureExceptionsAdapter;
+import org.jetbrains.jet.rt.signature.JetSignatureReader;
+import org.jetbrains.jet.rt.signature.JetSignatureVisitor;
+
+import javax.inject.Inject;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author Stepan Koltsov
+ */
+public class JavaDescriptorSignatureResolver {
+
+    @NotNull
+    private JavaDescriptorResolver javaDescriptorResolver;
+    @NotNull
+    private JavaSemanticServices semanticServices;
+
+    @Inject
+    public void setJavaDescriptorResolver(@NotNull JavaDescriptorResolver javaDescriptorResolver) {
+        this.javaDescriptorResolver = javaDescriptorResolver;
+    }
+
+    @Inject
+    public void setJavaSemanticServices(@NotNull JavaSemanticServices javaSemanticServices) {
+        this.semanticServices = javaSemanticServices;
+    }
+
+
+
+    private enum TypeParameterDescriptorOrigin {
+        JAVA,
+        KOTLIN,
+    }
+
+    public static class TypeParameterDescriptorInitialization {
+        @NotNull
+        private final TypeParameterDescriptorOrigin origin;
+        @NotNull
+        final TypeParameterDescriptorImpl descriptor;
+        final PsiTypeParameter psiTypeParameter;
+        @Nullable
+        private final List<JetType> upperBoundsForKotlin;
+        @Nullable
+        private final List<JetType> lowerBoundsForKotlin;
+
+        private TypeParameterDescriptorInitialization(@NotNull TypeParameterDescriptorImpl descriptor, @NotNull PsiTypeParameter psiTypeParameter) {
+            this.origin = TypeParameterDescriptorOrigin.JAVA;
+            this.descriptor = descriptor;
+            this.psiTypeParameter = psiTypeParameter;
+            this.upperBoundsForKotlin = null;
+            this.lowerBoundsForKotlin = null;
+        }
+
+        private TypeParameterDescriptorInitialization(@NotNull TypeParameterDescriptorImpl descriptor, @NotNull PsiTypeParameter psiTypeParameter,
+                List<JetType> upperBoundsForKotlin, List<JetType> lowerBoundsForKotlin) {
+            this.origin = TypeParameterDescriptorOrigin.KOTLIN;
+            this.descriptor = descriptor;
+            this.psiTypeParameter = psiTypeParameter;
+            this.upperBoundsForKotlin = upperBoundsForKotlin;
+            this.lowerBoundsForKotlin = lowerBoundsForKotlin;
+        }
+    }
+
+
+
+    @NotNull
+    private static PsiTypeParameter getPsiTypeParameterByName(PsiTypeParameterListOwner clazz, String name) {
+        for (PsiTypeParameter typeParameter : clazz.getTypeParameters()) {
+            if (typeParameter.getName().equals(name)) {
+                return typeParameter;
+            }
+        }
+        throw new IllegalStateException("PsiTypeParameter '" + name + "' is not found");
+    }
+
+
+
+    private abstract class JetSignatureTypeParameterVisitor extends JetSignatureExceptionsAdapter {
+
+        @NotNull
+        private final PsiTypeParameterListOwner psiOwner;
+        @NotNull
+        private final String name;
+        @NotNull
+        private final TypeVariableResolver typeVariableResolver;
+        @NotNull
+        private final TypeParameterDescriptorImpl typeParameterDescriptor;
+
+        protected JetSignatureTypeParameterVisitor(PsiTypeParameterListOwner psiOwner,
+                String name, TypeVariableResolver typeVariableResolver, TypeParameterDescriptorImpl typeParameterDescriptor)
+        {
+            if (name.isEmpty()) {
+                throw new IllegalStateException();
+            }
+
+            this.psiOwner = psiOwner;
+            this.name = name;
+            this.typeVariableResolver = typeVariableResolver;
+            this.typeParameterDescriptor = typeParameterDescriptor;
+        }
+
+        List<JetType> upperBounds = new ArrayList<JetType>();
+        List<JetType> lowerBounds = new ArrayList<JetType>();
+
+        @Override
+        public JetSignatureVisitor visitClassBound() {
+            return new JetTypeJetSignatureReader(semanticServices, JetStandardLibrary.getInstance(), typeVariableResolver) {
+                @Override
+                protected void done(@NotNull JetType jetType) {
+                    if (JavaDescriptorResolver.isJavaLangObject(jetType)) {
+                        return;
+                    }
+                    upperBounds.add(jetType);
+                }
+            };
+        }
+
+        @Override
+        public JetSignatureVisitor visitInterfaceBound() {
+            return new JetTypeJetSignatureReader(semanticServices, JetStandardLibrary.getInstance(), typeVariableResolver) {
+                @Override
+                protected void done(@NotNull JetType jetType) {
+                    upperBounds.add(jetType);
+                }
+            };
+        }
+
+        @Override
+        public void visitFormalTypeParameterEnd() {
+            PsiTypeParameter psiTypeParameter = getPsiTypeParameterByName(psiOwner, name);
+            TypeParameterDescriptorInitialization typeParameterDescriptorInitialization = new TypeParameterDescriptorInitialization(typeParameterDescriptor, psiTypeParameter, upperBounds, lowerBounds);
+            done(typeParameterDescriptorInitialization);
+        }
+
+        protected abstract void done(@NotNull TypeParameterDescriptorInitialization typeParameterDescriptor);
+    }
+
+    private class JetSignatureTypeParametersVisitor extends JetSignatureExceptionsAdapter {
+        @NotNull
+        private final DeclarationDescriptor containingDeclaration;
+        @NotNull
+        private final PsiTypeParameterListOwner psiOwner;
+
+        private final List<TypeParameterDescriptor> previousTypeParameters = new ArrayList<TypeParameterDescriptor>();
+        // note changes state in this method
+        private final TypeVariableResolver typeVariableResolver;
+
+
+        private JetSignatureTypeParametersVisitor(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameterListOwner psiOwner, @NotNull String context) {
+            this.containingDeclaration = containingDeclaration;
+            this.psiOwner = psiOwner;
+
+            this.typeVariableResolver = TypeVariableResolvers.typeVariableResolverFromTypeParameters(
+                    previousTypeParameters,
+                    containingDeclaration,
+                    context);
+        }
+
+        private int formalTypeParameterIndex = 0;
+
+
+        List<TypeParameterDescriptorInitialization> r = new ArrayList<TypeParameterDescriptorInitialization>();
+
+        @Override
+        public JetSignatureVisitor visitFormalTypeParameter(final String name, final TypeInfoVariance variance, boolean reified) {
+            TypeParameterDescriptorImpl typeParameter = TypeParameterDescriptorImpl.createForFurtherModification(
+                    containingDeclaration,
+                    Collections.<AnnotationDescriptor>emptyList(), // TODO: wrong
+                    reified,
+                    JetSignatureUtils.translateVariance(variance),
+                    Name.identifier(name),
+                    formalTypeParameterIndex++);
+
+            previousTypeParameters.add(typeParameter);
+
+            return new JetSignatureTypeParameterVisitor(psiOwner, name, typeVariableResolver, typeParameter) {
+                @Override
+                protected void done(@NotNull TypeParameterDescriptorInitialization typeParameterDescriptor) {
+                    r.add(typeParameterDescriptor);
+                    previousTypeParameters.add(typeParameterDescriptor.descriptor);
+                }
+            };
+        }
+    }
+
+        /**
+     * @see #resolveMethodTypeParametersFromJetSignature(String, com.intellij.psi.PsiMethod, org.jetbrains.jet.lang.descriptors.DeclarationDescriptor)
+     */
+    private List<TypeParameterDescriptorInitialization> resolveClassTypeParametersFromJetSignature(String jetSignature,
+            final PsiClass clazz, final ClassDescriptor classDescriptor) {
+        String context = "class " + clazz.getQualifiedName();
+        JetSignatureTypeParametersVisitor jetSignatureTypeParametersVisitor = new JetSignatureTypeParametersVisitor(classDescriptor, clazz, context) {
+            @Override
+            public JetSignatureVisitor visitSuperclass() {
+                // TODO
+                return new JetSignatureAdapter();
+            }
+
+            @Override
+            public JetSignatureVisitor visitInterface() {
+                // TODO
+                return new JetSignatureAdapter();
+            }
+        };
+        new JetSignatureReader(jetSignature).accept(jetSignatureTypeParametersVisitor);
+        return jetSignatureTypeParametersVisitor.r;
+    }
+
+
+        private List<TypeParameterDescriptorInitialization> makeUninitializedTypeParameters(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameter[] typeParameters) {
+        List<TypeParameterDescriptorInitialization> result = Lists.newArrayList();
+        for (PsiTypeParameter typeParameter : typeParameters) {
+            TypeParameterDescriptorInitialization typeParameterDescriptor = makeUninitializedTypeParameter(containingDeclaration, typeParameter);
+            result.add(typeParameterDescriptor);
+        }
+        return result;
+    }
+
+    @NotNull
+    private TypeParameterDescriptorInitialization makeUninitializedTypeParameter(@NotNull DeclarationDescriptor containingDeclaration, @NotNull PsiTypeParameter psiTypeParameter) {
+        TypeParameterDescriptorImpl typeParameterDescriptor = TypeParameterDescriptorImpl.createForFurtherModification(
+                containingDeclaration,
+                Collections.<AnnotationDescriptor>emptyList(), // TODO
+                false,
+                Variance.INVARIANT,
+                Name.identifier(psiTypeParameter.getName()),
+                psiTypeParameter.getIndex()
+        );
+        return new TypeParameterDescriptorInitialization(typeParameterDescriptor, psiTypeParameter);
+    }
+
+    private void initializeTypeParameter(TypeParameterDescriptorInitialization typeParameter, TypeVariableResolver typeVariableByPsiResolver) {
+        TypeParameterDescriptorImpl typeParameterDescriptor = typeParameter.descriptor;
+        if (typeParameter.origin == TypeParameterDescriptorOrigin.KOTLIN) {
+            List<?> upperBounds = typeParameter.upperBoundsForKotlin;
+            if (upperBounds.size() == 0){
+                typeParameterDescriptor.addUpperBound(JetStandardClasses.getNullableAnyType());
+            }
+            else {
+                for (JetType upperBound : typeParameter.upperBoundsForKotlin) {
+                    typeParameterDescriptor.addUpperBound(upperBound);
+                }
+            }
+
+            // TODO: lower bounds
+        }
+        else {
+            PsiClassType[] referencedTypes = typeParameter.psiTypeParameter.getExtendsList().getReferencedTypes();
+            if (referencedTypes.length == 0){
+                typeParameterDescriptor.addUpperBound(JetStandardClasses.getNullableAnyType());
+            }
+            else if (referencedTypes.length == 1) {
+                typeParameterDescriptor.addUpperBound(semanticServices.getTypeTransformer().transformToType(referencedTypes[0], JavaTypeTransformer.TypeUsage.UPPER_BOUND, typeVariableByPsiResolver));
+            }
+            else {
+                for (PsiClassType referencedType : referencedTypes) {
+                    typeParameterDescriptor.addUpperBound(semanticServices.getTypeTransformer().transformToType(referencedType, JavaTypeTransformer.TypeUsage.UPPER_BOUND, typeVariableByPsiResolver));
+                }
+            }
+        }
+        typeParameterDescriptor.setInitialized();
+    }
+
+    void initializeTypeParameters(List<TypeParameterDescriptorInitialization> typeParametersInitialization, @NotNull DeclarationDescriptor typeParametersOwner, @NotNull String context) {
+        List<TypeParameterDescriptor> prevTypeParameters = new ArrayList<TypeParameterDescriptor>();
+
+        List<TypeParameterDescriptor> typeParameters = Lists.newArrayList();
+        for (TypeParameterDescriptorInitialization typeParameterDescriptor : typeParametersInitialization) {
+            typeParameters.add(typeParameterDescriptor.descriptor);
+        }
+
+        for (TypeParameterDescriptorInitialization psiTypeParameter : typeParametersInitialization) {
+            prevTypeParameters.add(psiTypeParameter.descriptor);
+            initializeTypeParameter(psiTypeParameter,
+                    TypeVariableResolvers.typeVariableResolverFromTypeParameters(typeParameters, typeParametersOwner, context));
+        }
+    }
+
+
+    List<TypeParameterDescriptorInitialization> createUninitializedClassTypeParameters(PsiClass psiClass, JavaDescriptorResolver.ResolverBinaryClassData classData) {
+        JetClassAnnotation jetClassAnnotation = JetClassAnnotation.get(psiClass);
+
+        if (jetClassAnnotation.signature().length() > 0) {
+            return resolveClassTypeParametersFromJetSignature(
+                    jetClassAnnotation.signature(), psiClass, classData.classDescriptor);
+        }
+
+        return makeUninitializedTypeParameters(classData.classDescriptor, psiClass.getTypeParameters());
+    }
+
+
+    List<TypeParameterDescriptor> resolveMethodTypeParameters(
+            @NotNull PsiMethodWrapper method,
+            @NotNull DeclarationDescriptor functionDescriptor) {
+
+        List<TypeParameterDescriptorInitialization> typeParametersIntialization;
+        if (method.getJetMethod().typeParameters().length() > 0) {
+            typeParametersIntialization = resolveMethodTypeParametersFromJetSignature(
+                    method.getJetMethod().typeParameters(), method.getPsiMethod(), functionDescriptor);
+        }
+        else {
+            typeParametersIntialization = makeUninitializedTypeParameters(functionDescriptor, method.getPsiMethod().getTypeParameters());
+        }
+
+        String context = "method " + method.getName() + " in class " + method.getPsiMethod().getContainingClass().getQualifiedName();
+        initializeTypeParameters(typeParametersIntialization, functionDescriptor, context);
+
+        List<TypeParameterDescriptor> typeParameters = Lists.newArrayListWithCapacity(typeParametersIntialization.size());
+
+        for (TypeParameterDescriptorInitialization tpdi : typeParametersIntialization) {
+            typeParameters.add(tpdi.descriptor);
+        }
+
+        return typeParameters;
+    }
+
+    /**
+     * @see #resolveClassTypeParametersFromJetSignature(String, com.intellij.psi.PsiClass, org.jetbrains.jet.lang.descriptors.ClassDescriptor)
+     */
+    private List<TypeParameterDescriptorInitialization> resolveMethodTypeParametersFromJetSignature(String jetSignature,
+            final PsiMethod method, final DeclarationDescriptor functionDescriptor)
+    {
+        String context = "method " + method.getName() + " in class " + method.getContainingClass().getQualifiedName();
+        JetSignatureTypeParametersVisitor jetSignatureTypeParametersVisitor = new JetSignatureTypeParametersVisitor(functionDescriptor, method, context);
+        new JetSignatureReader(jetSignature).acceptFormalTypeParametersOnly(jetSignatureTypeParametersVisitor);
+        return jetSignatureTypeParametersVisitor.r;
+    }
+
+
+
+
+}