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.codegen;
018
019import com.intellij.openapi.application.ApplicationManager;
020import com.intellij.openapi.util.Computable;
021import com.intellij.psi.PsiElement;
022import org.jetbrains.annotations.NotNull;
023import org.jetbrains.annotations.Nullable;
024import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils;
025
026public class CompilationException extends RuntimeException {
027    private final PsiElement element;
028
029    public CompilationException(@NotNull String message, @Nullable Throwable cause, @NotNull PsiElement element) {
030        super(message, cause);
031        this.element = element;
032    }
033
034    @NotNull
035    public PsiElement getElement() {
036        return element;
037    }
038
039
040    private String where() {
041        Throwable cause = getCause();
042        Throwable throwable = cause != null ? cause : this;
043        StackTraceElement[] stackTrace = throwable.getStackTrace();
044        if (stackTrace != null && stackTrace.length > 0) {
045            return stackTrace[0].getFileName() + ":" + stackTrace[0].getLineNumber();
046        }
047        return "unknown";
048    }
049
050    @Override
051    public String getMessage() {
052        return ApplicationManager.getApplication().runReadAction(new Computable<String>() {
053            @Override
054            public String compute() {
055                StringBuilder message =
056                        new StringBuilder("Back-end (JVM) Internal error: ").append(CompilationException.super.getMessage()).append("\n");
057                Throwable cause = getCause();
058                if (cause != null) {
059                    String causeMessage = cause.getMessage();
060                    message.append("Cause: ").append(causeMessage == null ? cause.toString() : causeMessage).append("\n");
061                }
062                message.append("File being compiled and position: ").append(DiagnosticUtils.atLocation(element)).append("\n");
063                message.append("PsiElement: ").append(element.getText()).append("\n");
064                message.append("The root cause was thrown at: ").append(where());
065
066                return message.toString();
067            }
068        });
069    }
070}