001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.lang.resolve.java;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.jet.lang.descriptors.*;
021
022import java.util.ArrayList;
023import java.util.List;
024
025public class TypeVariableResolvers {
026
027    @NotNull
028    public static List<TypeParameterDescriptor> getTypeParameterDescriptors(@NotNull ClassOrNamespaceDescriptor clazz) {
029        if (clazz instanceof ClassDescriptor) {
030            return ((ClassDescriptor) clazz).getTypeConstructor().getParameters();
031        }
032        else {
033            return new ArrayList<TypeParameterDescriptor>(0);
034        }
035    }
036
037    @NotNull
038    public static TypeVariableResolver classTypeVariableResolver(@NotNull ClassOrNamespaceDescriptor clazz, @NotNull String context) {
039        return typeVariableResolverFromTypeParameters(getTypeParameterDescriptors(clazz), clazz, context);
040    }
041
042    @NotNull
043    public static TypeVariableResolver typeVariableResolverFromTypeParameters(
044            @NotNull List<TypeParameterDescriptor> typeParameters, @NotNull DeclarationDescriptor owner, @NotNull String context) {
045
046        return new TypeVariableResolverFromTypeDescriptors(typeParameters, owner, context);
047    }
048    
049}