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/*
 * Copyright 2010-2013 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;

import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.jet.lang.diagnostics.Diagnostic;

import java.util.Collection;
import java.util.Iterator;

public class SimpleDiagnostics implements Diagnostics {
    private final Collection diagnostics;
    private final DiagnosticsElementsCache elementsCache = new DiagnosticsElementsCache(this);

    public SimpleDiagnostics(@NotNull Collection diagnostics) {
        this.diagnostics = diagnostics;
    }

    @NotNull
    @Override
    public Collection all() {
        return diagnostics;
    }

    @NotNull
    @Override
    public Collection forElement(@NotNull PsiElement psiElement) {
        return elementsCache.getDiagnostics(psiElement);
    }

    @NotNull
    @Override
    public Diagnostics noSuppression() {
        return this;
    }

    @NotNull
    @Override
    public Iterator iterator() {
        return all().iterator();
    }

    @Override
    public boolean isEmpty() {
        return all().isEmpty();
    }
}