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 com.intellij.psi.PsiErrorElement;
021 import org.jetbrains.annotations.NotNull;
022 import org.jetbrains.annotations.Nullable;
023 import org.jetbrains.jet.lang.diagnostics.Diagnostic;
024 import org.jetbrains.jet.lang.diagnostics.DiagnosticHolder;
025 import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils;
026 import org.jetbrains.jet.lang.psi.JetTreeVisitorVoid;
027
028 import java.util.ArrayList;
029 import java.util.List;
030
031 public class AnalyzingUtils {
032
033 public abstract static class PsiErrorElementVisitor extends JetTreeVisitorVoid {
034 @Override
035 public abstract void visitErrorElement(PsiErrorElement element);
036 }
037
038
039 public static void checkForSyntacticErrors(@NotNull PsiElement root) {
040 root.acceptChildren(new PsiErrorElementVisitor() {
041 @Override
042 public void visitErrorElement(PsiErrorElement element) {
043 throw new IllegalArgumentException(element.getErrorDescription() + "; looking at " + element.getNode().getElementType() + " '" + element.getText() + DiagnosticUtils.atLocation(element));
044 }
045 });
046 }
047
048 public static List<PsiErrorElement> getSyntaxErrorRanges(@NotNull PsiElement root) {
049 final ArrayList<PsiErrorElement> r = new ArrayList<PsiErrorElement>();
050 root.acceptChildren(new PsiErrorElementVisitor() {
051 @Override
052 public void visitErrorElement(PsiErrorElement element) {
053 r.add(element);
054 }
055 });
056 return r;
057 }
058
059 public static void throwExceptionOnErrors(BindingContext bindingContext) {
060 for (Diagnostic diagnostic : bindingContext.getDiagnostics()) {
061 DiagnosticHolder.THROW_EXCEPTION.report(diagnostic);
062 }
063 }
064
065 // --------------------------------------------------------------------------------------------------------------------------
066
067 public static String formDebugNameForBindingTrace(@NotNull String debugName, @Nullable Object resolutionSubjectForMessage) {
068 StringBuilder debugInfo = new StringBuilder(debugName);
069 if (resolutionSubjectForMessage instanceof PsiElement) {
070 PsiElement element = (PsiElement) resolutionSubjectForMessage;
071 debugInfo.append(" ").append(element.getText());
072 debugInfo.append(" in ").append(element.getContainingFile().getName());
073 }
074 else if (resolutionSubjectForMessage != null) {
075 debugInfo.append(" ").append(resolutionSubjectForMessage);
076 }
077 return debugInfo.toString();
078 }
079 }