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.diagnostics;
018
019import com.intellij.openapi.util.TextRange;
020import com.intellij.psi.PsiFile;
021import org.jetbrains.annotations.NotNull;
022import org.jetbrains.jet.lang.diagnostics.rendering.DefaultErrorMessages;
023
024import java.util.List;
025
026public interface DiagnosticHolder {
027    DiagnosticHolder DO_NOTHING = new DiagnosticHolder() {
028        @Override
029        public void report(@NotNull Diagnostic diagnostic) {
030        }
031    };
032    DiagnosticHolder THROW_EXCEPTION = new DiagnosticHolder() {
033        @Override
034        public void report(@NotNull Diagnostic diagnostic) {
035            if (diagnostic.getSeverity() == Severity.ERROR) {
036                PsiFile psiFile = diagnostic.getPsiFile();
037                List<TextRange> textRanges = diagnostic.getTextRanges();
038                String diagnosticText = DefaultErrorMessages.RENDERER.render(diagnostic);
039                throw new IllegalStateException(diagnostic.getFactory().getName() + ": " + diagnosticText + " " + DiagnosticUtils.atLocation(psiFile, textRanges.get(0)));
040            }
041        }
042    };
043
044    void report(@NotNull Diagnostic diagnostic);
045}