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.cli.common.messages;
018    
019    import com.intellij.openapi.util.text.StringUtil;
020    import com.intellij.psi.PsiElement;
021    import com.intellij.psi.PsiErrorElement;
022    import com.intellij.psi.PsiModifierListOwner;
023    import com.intellij.psi.util.PsiFormatUtil;
024    import jet.Function0;
025    import org.jetbrains.annotations.NotNull;
026    import org.jetbrains.annotations.Nullable;
027    import org.jetbrains.jet.analyzer.AnalyzeExhaust;
028    import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
029    import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
030    import org.jetbrains.jet.lang.diagnostics.*;
031    import org.jetbrains.jet.lang.diagnostics.rendering.DefaultErrorMessages;
032    import org.jetbrains.jet.lang.psi.JetFile;
033    import org.jetbrains.jet.lang.resolve.AnalyzingUtils;
034    import org.jetbrains.jet.lang.resolve.BindingContext;
035    import org.jetbrains.jet.lang.resolve.BindingContextUtils;
036    import org.jetbrains.jet.lang.resolve.DescriptorUtils;
037    import org.jetbrains.jet.lang.resolve.java.JavaBindingContext;
038    import org.jetbrains.jet.lang.resolve.java.JvmAbi;
039    import org.jetbrains.jet.lang.resolve.java.resolver.TraceBasedErrorReporter;
040    import org.jetbrains.jet.lang.resolve.kotlin.VirtualFileKotlinClass;
041    
042    import java.util.Collection;
043    import java.util.List;
044    
045    import static com.intellij.openapi.util.io.FileUtil.toSystemDependentName;
046    import static org.jetbrains.jet.lang.diagnostics.DiagnosticUtils.sortedDiagnostics;
047    
048    public final class AnalyzerWithCompilerReport {
049    
050        @NotNull
051        private static CompilerMessageSeverity convertSeverity(@NotNull Severity severity) {
052            switch (severity) {
053                case INFO:
054                    return CompilerMessageSeverity.INFO;
055                case ERROR:
056                    return CompilerMessageSeverity.ERROR;
057                case WARNING:
058                    return CompilerMessageSeverity.WARNING;
059            }
060            throw new IllegalStateException("Unknown severity: " + severity);
061        }
062    
063        @NotNull
064        private static final DiagnosticFactory0<PsiErrorElement> SYNTAX_ERROR_FACTORY = DiagnosticFactory0.create(Severity.ERROR);
065    
066        private boolean hasErrors = false;
067        @NotNull
068        private final MessageCollector messageCollectorWrapper;
069        @Nullable
070        private AnalyzeExhaust analyzeExhaust = null;
071    
072        public AnalyzerWithCompilerReport(@NotNull final MessageCollector collector) {
073            messageCollectorWrapper = new MessageCollector() {
074                @Override
075                public void report(@NotNull CompilerMessageSeverity severity,
076                        @NotNull String message,
077                        @NotNull CompilerMessageLocation location) {
078                    if (CompilerMessageSeverity.ERRORS.contains(severity)) {
079                        hasErrors = true;
080                    }
081                    collector.report(severity, message, location);
082                }
083            };
084        }
085    
086        private static boolean reportDiagnostic(@NotNull Diagnostic diagnostic, @NotNull MessageCollector messageCollector) {
087            if (!diagnostic.isValid()) return false;
088            DiagnosticUtils.LineAndColumn lineAndColumn = DiagnosticUtils.getLineAndColumn(diagnostic);
089            String render;
090            if (diagnostic instanceof MyDiagnostic) {
091                render = ((MyDiagnostic)diagnostic).message;
092            }
093            else {
094                render = DefaultErrorMessages.RENDERER.render(diagnostic);
095            }
096            messageCollector.report(convertSeverity(diagnostic.getSeverity()), render,
097                    MessageUtil.psiFileToMessageLocation(diagnostic.getPsiFile(), null, lineAndColumn.getLine(), lineAndColumn.getColumn()));
098            return diagnostic.getSeverity() == Severity.ERROR;
099        }
100    
101        private void reportIncompleteHierarchies() {
102            assert analyzeExhaust != null;
103            Collection<ClassDescriptor> incompletes = analyzeExhaust.getBindingContext().getKeys(BindingContext.INCOMPLETE_HIERARCHY);
104            if (!incompletes.isEmpty()) {
105                StringBuilder message = new StringBuilder("The following classes have incomplete hierarchies:\n");
106                for (ClassDescriptor incomplete : incompletes) {
107                    String fqName = DescriptorUtils.getFQName(incomplete).asString();
108                    message.append("    ").append(fqName).append("\n");
109                }
110                messageCollectorWrapper.report(CompilerMessageSeverity.ERROR, message.toString(), CompilerMessageLocation.NO_LOCATION);
111            }
112        }
113    
114        private void reportAlternativeSignatureErrors() {
115            assert analyzeExhaust != null;
116            BindingContext bc = analyzeExhaust.getBindingContext();
117            Collection<DeclarationDescriptor> descriptorsWithErrors = bc.getKeys(JavaBindingContext.LOAD_FROM_JAVA_SIGNATURE_ERRORS);
118            if (!descriptorsWithErrors.isEmpty()) {
119                StringBuilder message = new StringBuilder("The following Java entities have annotations with wrong Kotlin signatures:\n");
120                for (DeclarationDescriptor descriptor : descriptorsWithErrors) {
121                    PsiElement declaration = BindingContextUtils.descriptorToDeclaration(bc, descriptor);
122                    assert declaration instanceof PsiModifierListOwner;
123    
124                    List<String> errors = bc.get(JavaBindingContext.LOAD_FROM_JAVA_SIGNATURE_ERRORS, descriptor);
125                    assert errors != null && !errors.isEmpty();
126    
127                    String externalName = PsiFormatUtil.getExternalName((PsiModifierListOwner) declaration);
128                    message.append(externalName).append(":\n");
129    
130                    for (String error : errors) {
131                        message.append("    ").append(error).append("\n");
132                    }
133                }
134                messageCollectorWrapper.report(CompilerMessageSeverity.ERROR,
135                                               message.toString(), CompilerMessageLocation.NO_LOCATION);
136            }
137        }
138    
139        private void reportAbiVersionErrors() {
140            assert analyzeExhaust != null;
141            BindingContext bindingContext = analyzeExhaust.getBindingContext();
142    
143            Collection<VirtualFileKotlinClass> errorClasses = bindingContext.getKeys(TraceBasedErrorReporter.ABI_VERSION_ERRORS);
144            for (VirtualFileKotlinClass kotlinClass : errorClasses) {
145                Integer abiVersion = bindingContext.get(TraceBasedErrorReporter.ABI_VERSION_ERRORS, kotlinClass);
146                String path = toSystemDependentName(kotlinClass.getFile().getPath());
147                messageCollectorWrapper.report(CompilerMessageSeverity.ERROR,
148                                               "Class '" + kotlinClass.getClassName() +
149                                               "' was compiled with an incompatible version of Kotlin. " +
150                                               "Its ABI version is " + abiVersion + ", expected ABI version is " + JvmAbi.VERSION,
151                                               CompilerMessageLocation.create(path, 0, 0));
152            }
153        }
154    
155        public static boolean reportDiagnostics(@NotNull BindingContext bindingContext, @NotNull MessageCollector messageCollector) {
156            boolean hasErrors = false;
157            for (Diagnostic diagnostic : sortedDiagnostics(bindingContext.getDiagnostics().all())) {
158                hasErrors |= reportDiagnostic(diagnostic, messageCollector);
159            }
160            return hasErrors;
161        }
162    
163        private void reportSyntaxErrors(@NotNull Collection<JetFile> files) {
164            for (JetFile file : files) {
165                reportSyntaxErrors(file, messageCollectorWrapper);
166            }
167        }
168    
169        public static class SyntaxErrorReport {
170            private final boolean hasErrors;
171            private final boolean onlyErrorAtEof;
172    
173            public SyntaxErrorReport(boolean hasErrors, boolean onlyErrorAtEof) {
174                this.hasErrors = hasErrors;
175                this.onlyErrorAtEof = onlyErrorAtEof;
176            }
177    
178            public boolean isHasErrors() {
179                return hasErrors;
180            }
181    
182            public boolean isOnlyErrorAtEof() {
183                return onlyErrorAtEof;
184            }
185        }
186    
187        public static SyntaxErrorReport reportSyntaxErrors(@NotNull final PsiElement file, @NotNull final MessageCollector messageCollector) {
188            class ErrorReportingVisitor extends AnalyzingUtils.PsiErrorElementVisitor {
189                boolean hasErrors = false;
190                boolean onlyErrorAtEof = false;
191    
192                private <E extends PsiElement> void reportDiagnostic(E element, DiagnosticFactory0<E> factory, String message) {
193                    MyDiagnostic<?> diagnostic = new MyDiagnostic<E>(element, factory, message);
194                    AnalyzerWithCompilerReport.reportDiagnostic(diagnostic, messageCollector);
195                    if (element.getTextRange().getStartOffset() == file.getTextRange().getEndOffset()) {
196                        onlyErrorAtEof = !hasErrors;
197                    }
198                    hasErrors = true;
199                }
200    
201                @Override
202                public void visitErrorElement(PsiErrorElement element) {
203                    String description = element.getErrorDescription();
204                    reportDiagnostic(element, SYNTAX_ERROR_FACTORY, StringUtil.isEmpty(description) ? "Syntax error" : description);
205                }
206            }
207            ErrorReportingVisitor visitor = new ErrorReportingVisitor();
208    
209            file.accept(visitor);
210    
211            return new SyntaxErrorReport(visitor.hasErrors, visitor.onlyErrorAtEof);
212        }
213    
214        @Nullable
215        public AnalyzeExhaust getAnalyzeExhaust() {
216            return analyzeExhaust;
217        }
218    
219        public boolean hasErrors() {
220            return hasErrors;
221        }
222    
223        public void analyzeAndReport(@NotNull Function0<AnalyzeExhaust> analyzer, @NotNull Collection<JetFile> files) {
224            reportSyntaxErrors(files);
225            analyzeExhaust = analyzer.invoke();
226            reportDiagnostics(analyzeExhaust.getBindingContext(), messageCollectorWrapper);
227            reportIncompleteHierarchies();
228            reportAlternativeSignatureErrors();
229            reportAbiVersionErrors();
230        }
231    
232    
233        private static class MyDiagnostic<E extends PsiElement> extends SimpleDiagnostic<E> {
234            private String message;
235    
236            public MyDiagnostic(@NotNull E psiElement, @NotNull DiagnosticFactory0<E> factory, String message) {
237                super(psiElement, factory, Severity.ERROR);
238                this.message = message;
239            }
240    
241            @Override
242            public boolean isValid() {
243                return true;
244            }
245        }
246    }