private static TextRange adjustRange(final PsiElement element, final TextRange originalRange) {
final Ref<TextRange> rangeRef = new Ref<TextRange>(originalRange);
element.accept(
new JavaRecursiveElementVisitor() {
@Override
public void visitExpressionStatement(final PsiExpressionStatement statement) {
final TextRange stRange = statement.getTextRange();
if (originalRange.intersects(stRange)) {
final TextRange currentRange = rangeRef.get();
final int start = Math.min(currentRange.getStartOffset(), stRange.getStartOffset());
final int end = Math.max(currentRange.getEndOffset(), stRange.getEndOffset());
rangeRef.set(new TextRange(start, end));
}
}
});
return rangeRef.get();
}
public static PsiExpression[] findVariableOccurrences(
final PsiElement[] scopeElements, final PsiVariable variable) {
final ArrayList<PsiExpression> result = new ArrayList<PsiExpression>();
for (final PsiElement element : scopeElements) {
element.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitReferenceExpression(final PsiReferenceExpression expression) {
super.visitReferenceExpression(expression);
if (!expression.isQualified() && expression.isReferenceTo(variable)) {
result.add(expression);
}
}
});
}
return result.toArray(new PsiExpression[result.size()]);
}
public CommonProblemDescriptor[] checkElement(
@NotNull final PsiElement psiElement, InspectionManager manager, Project project) {
final Map<PsiElement, Collection<String>> suppressedScopes =
new THashMap<PsiElement, Collection<String>>();
psiElement.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitModifierList(PsiModifierList list) {
super.visitModifierList(list);
final PsiElement parent = list.getParent();
if (parent instanceof PsiModifierListOwner && !(parent instanceof PsiClass)) {
checkElement(parent);
}
}
@Override
public void visitComment(PsiComment comment) {
checkElement(comment);
}
@Override
public void visitClass(PsiClass aClass) {
if (aClass == psiElement) {
super.visitClass(aClass);
checkElement(aClass);
}
}
private void checkElement(final PsiElement owner) {
String idsString = SuppressManager.getInstance().getSuppressedInspectionIdsIn(owner);
if (idsString != null && idsString.length() != 0) {
List<String> ids = StringUtil.split(idsString, ",");
if (IGNORE_ALL
&& (ids.contains(SuppressionUtil.ALL)
|| ids.contains(SuppressionUtil.ALL.toLowerCase()))) return;
Collection<String> suppressed = suppressedScopes.get(owner);
if (suppressed == null) {
suppressed = ids;
} else {
for (String id : ids) {
if (!suppressed.contains(id)) {
suppressed.add(id);
}
}
}
suppressedScopes.put(owner, suppressed);
}
}
});
if (suppressedScopes.values().isEmpty()) return null;
// have to visit all file from scratch since inspections can be written in any perversive way
// including checkFile() overriding
Collection<InspectionTool> suppressedTools = new THashSet<InspectionTool>();
InspectionTool[] tools = getInspectionTools(psiElement, manager);
for (Collection<String> ids : suppressedScopes.values()) {
for (Iterator<String> iterator = ids.iterator(); iterator.hasNext(); ) {
final String shortName = iterator.next().trim();
for (InspectionTool tool : tools) {
if (tool instanceof LocalInspectionToolWrapper
&& ((LocalInspectionToolWrapper) tool).getTool().getID().equals(shortName)) {
if (!((LocalInspectionToolWrapper) tool).isUnfair()) {
suppressedTools.add(tool);
} else {
iterator.remove();
break;
}
} else if (tool.getShortName().equals(shortName)) {
// ignore global unused as it won't be checked anyway
if (!(tool instanceof LocalInspectionToolWrapper)
&& !(tool instanceof GlobalInspectionToolWrapper)) {
iterator.remove();
break;
} else {
suppressedTools.add(tool);
}
}
}
}
}
final AnalysisScope scope = new AnalysisScope(psiElement.getContainingFile());
final InspectionManagerEx inspectionManagerEx =
((InspectionManagerEx) InspectionManager.getInstance(project));
GlobalInspectionContextImpl globalContext = inspectionManagerEx.createNewGlobalContext(false);
globalContext.setCurrentScope(scope);
final RefManagerImpl refManager = ((RefManagerImpl) globalContext.getRefManager());
refManager.inspectionReadActionStarted();
final List<ProblemDescriptor> result;
try {
result = new ArrayList<ProblemDescriptor>();
for (InspectionTool tool : suppressedTools) {
String toolId =
tool instanceof LocalInspectionToolWrapper
? ((LocalInspectionToolWrapper) tool).getTool().getID()
: tool.getShortName();
tool.initialize(globalContext);
Collection<CommonProblemDescriptor> descriptors;
if (tool instanceof LocalInspectionToolWrapper) {
LocalInspectionToolWrapper local = (LocalInspectionToolWrapper) tool;
if (local.isUnfair()) continue; // cant't work with passes other than LocalInspectionPass
local.processFile(psiElement.getContainingFile(), false, manager);
descriptors = local.getProblemDescriptors();
} else if (tool instanceof GlobalInspectionToolWrapper) {
GlobalInspectionToolWrapper global = (GlobalInspectionToolWrapper) tool;
if (global.getTool().isGraphNeeded()) {
refManager.findAllDeclarations();
}
global.processFile(scope, manager, globalContext, false);
descriptors = global.getProblemDescriptors();
} else {
continue;
}
for (PsiElement suppressedScope : suppressedScopes.keySet()) {
Collection<String> suppressedIds = suppressedScopes.get(suppressedScope);
if (!suppressedIds.contains(toolId)) continue;
for (CommonProblemDescriptor descriptor : descriptors) {
if (!(descriptor instanceof ProblemDescriptor)) continue;
PsiElement element = ((ProblemDescriptor) descriptor).getPsiElement();
if (element == null) continue;
PsiElement annotation =
SuppressManager.getInstance().getElementToolSuppressedIn(element, toolId);
if (annotation != null && PsiTreeUtil.isAncestor(suppressedScope, annotation, false)
|| annotation == null && !PsiTreeUtil.isAncestor(suppressedScope, element, false)) {
suppressedIds.remove(toolId);
break;
}
}
}
}
for (PsiElement suppressedScope : suppressedScopes.keySet()) {
Collection<String> suppressedIds = suppressedScopes.get(suppressedScope);
for (String toolId : suppressedIds) {
PsiMember psiMember;
String problemLine = null;
if (suppressedScope instanceof PsiMember) {
psiMember = (PsiMember) suppressedScope;
} else {
psiMember = PsiTreeUtil.getParentOfType(suppressedScope, PsiDocCommentOwner.class);
final PsiStatement statement =
PsiTreeUtil.getNextSiblingOfType(suppressedScope, PsiStatement.class);
problemLine = statement != null ? statement.getText() : null;
}
if (psiMember != null && psiMember.isValid()) {
String description =
InspectionsBundle.message("inspection.redundant.suppression.description");
if (myQuickFixes == null) myQuickFixes = new BidirectionalMap<String, QuickFix>();
final String key = toolId + (problemLine != null ? ";" + problemLine : "");
QuickFix fix = myQuickFixes.get(key);
if (fix == null) {
fix = new RemoveSuppressWarningAction(toolId, problemLine);
myQuickFixes.put(key, fix);
}
PsiElement identifier = null;
if (psiMember instanceof PsiMethod) {
identifier = ((PsiMethod) psiMember).getNameIdentifier();
} else if (psiMember instanceof PsiField) {
identifier = ((PsiField) psiMember).getNameIdentifier();
} else if (psiMember instanceof PsiClass) {
identifier = ((PsiClass) psiMember).getNameIdentifier();
}
if (identifier == null) {
identifier = psiMember;
}
result.add(
manager.createProblemDescriptor(
identifier,
description,
(LocalQuickFix) fix,
ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
false));
}
}
}
} finally {
refManager.inspectionReadActionFinished();
globalContext.close(true);
}
return result.toArray(new ProblemDescriptor[result.size()]);
}
private static Pair<Set<String>, Set<TextWithImports>> findReferencedVars(
Set<String> visibleVars, SourcePosition position) {
final int line = position.getLine();
if (line < 0) {
return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
}
final PsiFile positionFile = position.getFile();
if (!positionFile.getLanguage().isKindOf(JavaLanguage.INSTANCE)) {
return Pair.create(visibleVars, Collections.<TextWithImports>emptySet());
}
final VirtualFile vFile = positionFile.getVirtualFile();
final Document doc =
vFile != null ? FileDocumentManager.getInstance().getDocument(vFile) : null;
if (doc == null || doc.getLineCount() == 0 || line > (doc.getLineCount() - 1)) {
return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
}
final TextRange limit = calculateLimitRange(positionFile, doc, line);
int startLine = Math.max(limit.getStartOffset(), line - 1);
startLine = Math.min(startLine, limit.getEndOffset());
while (startLine > limit.getStartOffset() && shouldSkipLine(positionFile, doc, startLine)) {
startLine--;
}
final int startOffset = doc.getLineStartOffset(startLine);
int endLine = Math.min(line + 2, limit.getEndOffset());
while (endLine < limit.getEndOffset() && shouldSkipLine(positionFile, doc, endLine)) {
endLine++;
}
final int endOffset = doc.getLineEndOffset(endLine);
final TextRange lineRange = new TextRange(startOffset, endOffset);
if (!lineRange.isEmpty()) {
final int offset =
CharArrayUtil.shiftForward(doc.getCharsSequence(), doc.getLineStartOffset(line), " \t");
PsiElement element = positionFile.findElementAt(offset);
if (element != null) {
PsiMethod method = PsiTreeUtil.getNonStrictParentOfType(element, PsiMethod.class);
if (method != null) {
element = method;
} else {
PsiField field = PsiTreeUtil.getNonStrictParentOfType(element, PsiField.class);
if (field != null) {
element = field;
} else {
final PsiClassInitializer initializer =
PsiTreeUtil.getNonStrictParentOfType(element, PsiClassInitializer.class);
if (initializer != null) {
element = initializer;
}
}
}
//noinspection unchecked
if (element instanceof PsiCompiledElement) {
return Pair.create(visibleVars, Collections.<TextWithImports>emptySet());
} else {
VariablesCollector collector =
new VariablesCollector(visibleVars, adjustRange(element, lineRange));
element.accept(collector);
return Pair.create(collector.getVars(), collector.getExpressions());
}
}
}
return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
}