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    
017    package org.jetbrains.jet.lang.resolve;
018    
019    import com.intellij.psi.PsiElement;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.jet.lang.diagnostics.Diagnostic;
022    
023    import java.util.Collection;
024    import java.util.Iterator;
025    
026    public class SimpleDiagnostics implements Diagnostics {
027        private final Collection<Diagnostic> diagnostics;
028        private final DiagnosticsElementsCache elementsCache = new DiagnosticsElementsCache(this);
029    
030        public SimpleDiagnostics(@NotNull Collection<Diagnostic> diagnostics) {
031            this.diagnostics = diagnostics;
032        }
033    
034        @NotNull
035        @Override
036        public Collection<Diagnostic> all() {
037            return diagnostics;
038        }
039    
040        @NotNull
041        @Override
042        public Collection<Diagnostic> forElement(@NotNull PsiElement psiElement) {
043            return elementsCache.getDiagnostics(psiElement);
044        }
045    
046        @NotNull
047        @Override
048        public Diagnostics noSuppression() {
049            return this;
050        }
051    
052        @NotNull
053        @Override
054        public Iterator<Diagnostic> iterator() {
055            return all().iterator();
056        }
057    
058        @Override
059        public boolean isEmpty() {
060            return all().isEmpty();
061        }
062    }