001 /*
002 * Copyright 2010-2015 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.kotlin.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.kotlin.diagnostics.Diagnostic;
024 import org.jetbrains.kotlin.diagnostics.DiagnosticSink;
025 import org.jetbrains.kotlin.diagnostics.DiagnosticUtils;
026 import org.jetbrains.kotlin.psi.KtElement;
027 import org.jetbrains.kotlin.psi.KtTreeVisitorVoid;
028 import org.jetbrains.kotlin.psi.debugText.DebugTextUtilKt;
029
030 import java.util.ArrayList;
031 import java.util.List;
032
033 public class AnalyzingUtils {
034
035 public abstract static class PsiErrorElementVisitor extends KtTreeVisitorVoid {
036 @Override
037 public abstract void visitErrorElement(PsiErrorElement element);
038 }
039
040
041 public static void checkForSyntacticErrors(@NotNull PsiElement root) {
042 root.acceptChildren(new PsiErrorElementVisitor() {
043 @Override
044 public void visitErrorElement(PsiErrorElement element) {
045 throw new IllegalArgumentException(element.getErrorDescription() + "; looking at " + element.getNode().getElementType() + " '" + element.getText() + DiagnosticUtils.atLocation(element));
046 }
047 });
048 }
049
050 public static List<PsiErrorElement> getSyntaxErrorRanges(@NotNull PsiElement root) {
051 final ArrayList<PsiErrorElement> r = new ArrayList<PsiErrorElement>();
052 root.acceptChildren(new PsiErrorElementVisitor() {
053 @Override
054 public void visitErrorElement(PsiErrorElement element) {
055 r.add(element);
056 }
057 });
058 return r;
059 }
060
061 public static void throwExceptionOnErrors(BindingContext bindingContext) {
062 for (Diagnostic diagnostic : bindingContext.getDiagnostics()) {
063 DiagnosticSink.THROW_EXCEPTION.report(diagnostic);
064 }
065 }
066
067 // --------------------------------------------------------------------------------------------------------------------------
068
069 public static String formDebugNameForBindingTrace(@NotNull String debugName, @Nullable Object resolutionSubjectForMessage) {
070 StringBuilder debugInfo = new StringBuilder(debugName);
071 if (resolutionSubjectForMessage instanceof KtElement) {
072 KtElement element = (KtElement) resolutionSubjectForMessage;
073 debugInfo.append(" ").append(DebugTextUtilKt.getDebugText(element));
074 debugInfo.append(" in ").append(element.getContainingFile().getName());
075 }
076 else if (resolutionSubjectForMessage != null) {
077 debugInfo.append(" ").append(resolutionSubjectForMessage);
078 }
079 return debugInfo.toString();
080 }
081 }