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 import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
030
031 import java.util.ArrayList;
032 import java.util.List;
033
034 public class AnalyzingUtils {
035 private static final boolean WRITE_DEBUG_TRACE_NAMES = false;
036
037 public abstract static class PsiErrorElementVisitor extends KtTreeVisitorVoid {
038 @Override
039 public abstract void visitErrorElement(@NotNull PsiErrorElement element);
040 }
041
042 public static void checkForSyntacticErrors(@NotNull PsiElement root) {
043 root.acceptChildren(new PsiErrorElementVisitor() {
044 @Override
045 public void visitErrorElement(@NotNull PsiErrorElement element) {
046 throw new IllegalArgumentException(element.getErrorDescription() + "; looking at " +
047 element.getNode().getElementType() + " '" +
048 element.getText() + DiagnosticUtils.atLocation(element));
049 }
050 });
051 }
052
053 public static List<PsiErrorElement> getSyntaxErrorRanges(@NotNull PsiElement root) {
054 final List<PsiErrorElement> r = new ArrayList<PsiErrorElement>();
055 root.acceptChildren(new PsiErrorElementVisitor() {
056 @Override
057 public void visitErrorElement(@NotNull PsiErrorElement element) {
058 r.add(element);
059 }
060 });
061 return r;
062 }
063
064 public static void throwExceptionOnErrors(BindingContext bindingContext) {
065 throwExceptionOnErrors(bindingContext.getDiagnostics());
066 }
067
068 public static void throwExceptionOnErrors(Diagnostics diagnostics) {
069 for (Diagnostic diagnostic : diagnostics) {
070 DiagnosticSink.THROW_EXCEPTION.report(diagnostic);
071 }
072 }
073
074 // --------------------------------------------------------------------------------------------------------------------------
075 public static String formDebugNameForBindingTrace(@NotNull String debugName, @Nullable Object resolutionSubjectForMessage) {
076 if (WRITE_DEBUG_TRACE_NAMES) {
077 StringBuilder debugInfo = new StringBuilder(debugName);
078 if (resolutionSubjectForMessage instanceof KtElement) {
079 KtElement element = (KtElement) resolutionSubjectForMessage;
080 debugInfo.append(" ").append(DebugTextUtilKt.getDebugText(element));
081 //debugInfo.append(" in ").append(element.getContainingFile().getName());
082 debugInfo.append(" in ").append(element.getContainingKtFile().getName()).append(" ").append(element.getTextOffset());
083 }
084 else if (resolutionSubjectForMessage != null) {
085 debugInfo.append(" ").append(resolutionSubjectForMessage);
086 }
087
088 return debugInfo.toString();
089 }
090
091 return "";
092 }
093 }