private void UpdateLastLine(JvmtiEnvironment environment) { _lastLine = null; if (!_hasMethodInfo) { return; } LineNumberData[] lines; jvmtiError error = environment.GetLineNumberTable(_lastMethod, out lines); if (error != jvmtiError.None) { return; } LineNumberData entry = lines.LastOrDefault(i => i.LineCodeIndex <= _lastLocation.Value); if (entry.LineNumber != 0) { _lastLine = entry.LineNumber; } }
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location?location) { if (!base.ProcessEvent(environment, nativeEnvironment, processor, thread, @class, location)) { return(false); } // Step Out is implemented with Frame Pop events set at the correct depth if (_depth == StepDepth.Out) { if (location.HasValue && !location.Value.Method.Equals(_lastMethod)) { _lastLocation = new jlocation((long)location.Value.Index); _lastMethod = location.Value.Method; UpdateLastLine(environment); } return(true); } using (var threadHandle = environment.VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, thread)) { int stackDepth; JvmtiErrorHandler.ThrowOnFailure(environment.GetFrameCount(threadHandle.Value, out stackDepth)); if (_hasMethodInfo && stackDepth > _stackDepth) { bool convertToFramePop; if (location.HasValue && (!_convertedToFramePop || !_framePopMethod.Equals(location.Value.Method)) && ShouldSkipCurrentMethod(processor.VirtualMachine, environment, nativeEnvironment, threadHandle.Value, stackDepth, location.Value, out convertToFramePop)) { if (convertToFramePop) { // remove the single step event JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.FramePop, this.RequestId)); JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.SingleStep, this.RequestId)); // set an actual step filter to respond when the thread arrives back in this frame JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.SetEventInternal(environment, nativeEnvironment, EventKind.FramePop, this)); _convertedToFramePop = true; _framePopMethod = location.Value.Method; } return(false); } else { _convertedToFramePop = false; return(true); } } else if (stackDepth == _stackDepth) { if (_size == StepSize.Statement && _disassembledMethod != null) { int instructionIndex = _disassembledMethod.Instructions.FindIndex(i => (uint)i.Offset == location.Value.Index); if (instructionIndex >= 0 && _evaluationStackDepths != null && (_evaluationStackDepths[instructionIndex] ?? 0) != 0) { return(false); } else if (instructionIndex >= 0 && _disassembledMethod.Instructions[instructionIndex].OpCode.FlowControl == JavaFlowControl.Branch) { // follow branch instructions before stopping return(false); } } else if (_lastLine != null) { // see if we're on the same line LineNumberData[] lines; jvmtiError error = environment.GetLineNumberTable(location.Value.Method, out lines); if (error == jvmtiError.None) { LineNumberData entry = lines.LastOrDefault(i => i.LineCodeIndex <= (long)location.Value.Index); if (entry.LineNumber == _lastLine) { return(false); } } } } if (location.HasValue) { _lastLocation = new jlocation((long)location.Value.Index); _lastMethod = location.Value.Method; UpdateLastLine(environment); } _stackDepth = stackDepth; return(true); } }