001    /*
002     * Copyright 2010-2015 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    
017    package org.jetbrains.kotlin.resolve;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.kotlin.descriptors.ClassDescriptor;
021    import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
022    import org.jetbrains.kotlin.platform.PlatformToKotlinClassMap;
023    import org.jetbrains.kotlin.psi.KtElement;
024    import org.jetbrains.kotlin.psi.KtExpression;
025    import org.jetbrains.kotlin.psi.KtImportDirective;
026    
027    import java.util.Collection;
028    
029    import static org.jetbrains.kotlin.diagnostics.Errors.PLATFORM_CLASS_MAPPED_TO_KOTLIN;
030    
031    public class PlatformClassesMappedToKotlinChecker {
032        public static void checkPlatformClassesMappedToKotlin(
033                @NotNull PlatformToKotlinClassMap platformToKotlinMap,
034                @NotNull BindingTrace trace,
035                @NotNull KtImportDirective importDirective,
036                @NotNull Collection<? extends DeclarationDescriptor> descriptors
037        ) {
038            KtExpression importedReference = importDirective.getImportedReference();
039            if (importedReference != null) {
040                for (DeclarationDescriptor descriptor : descriptors) {
041                    reportPlatformClassMappedToKotlin(platformToKotlinMap, trace, importedReference, descriptor);
042                }
043            }
044        }
045    
046        public static void reportPlatformClassMappedToKotlin(
047                @NotNull PlatformToKotlinClassMap platformToKotlinMap,
048                @NotNull BindingTrace trace,
049                @NotNull KtElement element,
050                @NotNull DeclarationDescriptor descriptor
051        ) {
052            if (!(descriptor instanceof ClassDescriptor)) return;
053    
054            Collection<ClassDescriptor> kotlinAnalogsForClass = platformToKotlinMap.mapPlatformClass((ClassDescriptor) descriptor);
055            if (!kotlinAnalogsForClass.isEmpty()) {
056                trace.report(PLATFORM_CLASS_MAPPED_TO_KOTLIN.on(element, kotlinAnalogsForClass));
057            }
058        }
059    }