@Override
public List<IWatchable> getVisibleWatchables() {
try {
StackFrame stackFrame = getStackFrame();
List<IWatchable> result = new ArrayList<IWatchable>();
if (stackFrame != null) {
for (LocalVariable variable : stackFrame.visibleVariables()) {
result.add(new JavaLocalVariable(variable, this, myClassFqName, myThreadReference));
}
ObjectReference thisObject = stackFrame.thisObject();
if (thisObject != null) {
result.add(new JavaThisObject(thisObject, this, myClassFqName, myThreadReference));
} else {
result.add(
new JavaStaticContext(
getStackFrame().location().declaringType(), myClassFqName, myThreadReference));
}
}
return result;
} catch (InvalidStackFrameException ex) {
LOG.warning(
"InvalidStackFrameException",
ex); // TODO something should be done here. See, for instance, how idea deals with those
// exceptions
return Collections.emptyList();
} catch (AbsentInformationException ex) {
// doing nothing, variables are just not available for us
return Collections.emptyList();
}
}
public static boolean filterEquals(ClassFilter[] filters1, ClassFilter[] filters2) {
if (filters1.length != filters2.length) {
return false;
}
final Set<ClassFilter> f1 =
new HashSet<ClassFilter>(Math.max((int) (filters1.length / .75f) + 1, 16));
final Set<ClassFilter> f2 =
new HashSet<ClassFilter>(Math.max((int) (filters2.length / .75f) + 1, 16));
Collections.addAll(f1, filters1);
Collections.addAll(f2, filters2);
return f2.equals(f1);
}
public List<ReferenceType> nestedTypes(ReferenceType refType) {
List<ReferenceType> nestedTypes = myNestedClassesCache.get(refType);
if (nestedTypes == null) {
List<ReferenceType> list = Collections.emptyList();
try {
list = refType.nestedTypes();
} catch (Throwable e) {
// sometimes some strange errors are thrown from JDI. Do not crash debugger because of this.
// Example:
// java.lang.StringIndexOutOfBoundsException: String index out of range: 487700285
// at java.lang.String.checkBounds(String.java:375)
// at java.lang.String.<init>(String.java:415)
// at com.sun.tools.jdi.PacketStream.readString(PacketStream.java:392)
// at
// com.sun.tools.jdi.JDWP$VirtualMachine$AllClassesWithGeneric$ClassInfo.<init>(JDWP.java:1644)
LOG.info(e);
}
if (!list.isEmpty()) {
final Set<ReferenceType> candidates = new HashSet<>();
final ClassLoaderReference outerLoader = refType.classLoader();
for (ReferenceType nested : list) {
try {
if (outerLoader == null
? nested.classLoader() == null
: outerLoader.equals(nested.classLoader())) {
candidates.add(nested);
}
} catch (ObjectCollectedException ignored) {
}
}
if (!candidates.isEmpty()) {
// keep only direct nested types
final Set<ReferenceType> nested2 = new HashSet<>();
for (final ReferenceType candidate : candidates) {
nested2.addAll(nestedTypes(candidate));
}
candidates.removeAll(nested2);
}
nestedTypes = candidates.isEmpty() ? Collections.emptyList() : new ArrayList<>(candidates);
} else {
nestedTypes = Collections.emptyList();
}
myNestedClassesCache.put(refType, nestedTypes);
}
return nestedTypes;
}
@Override
public Map<IWatchable, IValue> getWatchableValues() {
try {
StackFrame stackFrame = getStackFrame();
Map<IWatchable, IValue> result = new HashMap<IWatchable, IValue>();
if (stackFrame != null) {
Map<LocalVariable, Value> map = stackFrame.getValues(stackFrame.visibleVariables());
for (LocalVariable variable : map.keySet()) {
result.put(
new JavaLocalVariable(variable, this, myClassFqName, stackFrame.thread()),
JavaValue.fromJDIValue(map.get(variable), myClassFqName, stackFrame.thread()));
}
ObjectReference thisObject = stackFrame.thisObject();
if (thisObject != null) {
JavaThisObject object =
new JavaThisObject(thisObject, this, myClassFqName, stackFrame.thread());
result.put(object, object.getValue());
}
}
return result;
} catch (AbsentInformationException ex) {
// doing nothing
return Collections.emptyMap();
}
}
@NotNull
public static List<Pair<Breakpoint, Event>> getEventDescriptors(
SuspendContextImpl suspendContext) {
DebuggerManagerThreadImpl.assertIsManagerThread();
if (suspendContext == null) {
return Collections.emptyList();
}
final EventSet events = suspendContext.getEventSet();
if (events == null) {
return Collections.emptyList();
}
final List<Pair<Breakpoint, Event>> eventDescriptors = new SmartList<Pair<Breakpoint, Event>>();
final RequestManagerImpl requestManager = suspendContext.getDebugProcess().getRequestsManager();
for (final Event event : events) {
final Requestor requestor = requestManager.findRequestor(event.request());
if (requestor instanceof Breakpoint) {
eventDescriptors.add(Pair.create((Breakpoint) requestor, event));
}
}
return eventDescriptors;
}
private static ArrayReference createURLArray(EvaluationContext context)
throws EvaluateException, InvocationException, InvalidTypeException, ClassNotLoadedException,
IncompatibleThreadStateException {
DebugProcess process = context.getDebugProcess();
ArrayType arrayType =
(ArrayType) process.findClass(context, "java.net.URL[]", context.getClassLoader());
ArrayReference arrayRef = arrayType.newInstance(1);
keep(arrayRef, context);
ClassType classType =
(ClassType) process.findClass(context, "java.net.URL", context.getClassLoader());
VirtualMachineProxyImpl proxy = (VirtualMachineProxyImpl) process.getVirtualMachineProxy();
StringReference url = proxy.mirrorOf("file:a");
keep(url, context);
ObjectReference reference =
process.newInstance(
context,
classType,
classType.concreteMethodByName("<init>", "(Ljava/lang/String;)V"),
Collections.singletonList(url));
keep(reference, context);
arrayRef.setValues(Collections.singletonList(reference));
return arrayRef;
}
public static List<PsiLambdaExpression> collectLambdas(
@NotNull SourcePosition position, final boolean onlyOnTheLine) {
ApplicationManager.getApplication().assertReadAccessAllowed();
PsiFile file = position.getFile();
final int line = position.getLine();
final Document document = PsiDocumentManager.getInstance(file.getProject()).getDocument(file);
if (document == null || line >= document.getLineCount()) {
return Collections.emptyList();
}
PsiElement element = position.getElementAt();
final TextRange lineRange = DocumentUtil.getLineTextRange(document, line);
do {
PsiElement parent = element.getParent();
if (parent == null || (parent.getTextOffset() < lineRange.getStartOffset())) {
break;
}
element = parent;
} while (true);
final List<PsiLambdaExpression> lambdas = new ArrayList<PsiLambdaExpression>(3);
final PsiElementVisitor lambdaCollector =
new JavaRecursiveElementVisitor() {
@Override
public void visitLambdaExpression(PsiLambdaExpression expression) {
super.visitLambdaExpression(expression);
if (!onlyOnTheLine || getFirstElementOnTheLine(expression, document, line) != null) {
lambdas.add(expression);
}
}
};
element.accept(lambdaCollector);
// add initial lambda if we're inside already
PsiElement method = getContainingMethod(element);
if (method instanceof PsiLambdaExpression) {
lambdas.add((PsiLambdaExpression) method);
}
for (PsiElement sibling = getNextElement(element);
sibling != null;
sibling = getNextElement(sibling)) {
if (!intersects(lineRange, sibling)) {
break;
}
sibling.accept(lambdaCollector);
}
return lambdas;
}
List unmodifiableRequestList(int eventCmd) {
return Collections.unmodifiableList(requestList(eventCmd));
}
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());
}