DebuggableFramesSelector.java

package jetbrains.mps.debug.api;

/*Generated by MPS */

import com.intellij.openapi.project.Project;
import jetbrains.mps.debug.api.programState.IStackFrame;
import java.util.List;
import org.jetbrains.annotations.NotNull;
import jetbrains.mps.debug.api.source.PositionProvider;
import org.jetbrains.annotations.NonNls;
import jetbrains.mps.debug.api.programState.GenericSourceCodeLocation;
import jetbrains.mps.util.EqualUtil;
import jetbrains.mps.debug.api.source.SourcePosition;

public class DebuggableFramesSelector implements IDebuggableFramesSelector {
  private final Project myProject;
  private AbstractDebugSession mySession;
  public DebuggableFramesSelector(Project project, AbstractDebugSession session) {
    myProject = project;
    mySession = session;
  }
  @Override
  public IStackFrame findDeepestDebuggableFrame(List<IStackFrame> frames) {
    for (IStackFrame frame : frames) {
      if (isDebuggableFrame(frame)) {
        return frame;
      }
    }
    if (frames.isEmpty()) {
      return null;
    }
    return frames.get(0);
  }
  @Override
  public int findDeepestDebuggableFrameIndex(List<IStackFrame> frames) {
    int index = 0;
    for (IStackFrame frame : frames) {
      if (isDebuggableFrame(frame)) {
        return index;
      }
      index++;
    }
    if (frames.isEmpty()) {
      return AbstractUiState.NO_FRAME;
    }
    return 0;
  }
  @Override
  public boolean isDebuggableFrame(@NotNull IStackFrame frame) {
    return PositionProvider.getInstance(myProject).getPosition(frame.getLocation(), mySession) != null;
  }
  @Override
  public boolean isDebuggablePosition(@NonNls String unitName, @NonNls String fileName, int position) {
    return PositionProvider.getInstance(myProject).getPosition(new GenericSourceCodeLocation(unitName, fileName, position), mySession) != null;
  }
  @Override
  public boolean isSamePosition(String lastUnitName, String lastFileName, int lastLineNumber, int lastFrameCount, String nextUnitName, String nextFileName, int nextLineNumber, int nextFrameCount) {
    if (EqualUtil.equals(lastUnitName, nextUnitName) && lastLineNumber == nextLineNumber && lastFrameCount == nextFrameCount) {
      return true;
    }
    PositionProvider posProvider = PositionProvider.getInstance(myProject);
    SourcePosition lastPointer = posProvider.getPosition(new GenericSourceCodeLocation(lastUnitName, lastFileName, lastLineNumber), mySession);
    SourcePosition nextPointer = posProvider.getPosition(new GenericSourceCodeLocation(nextUnitName, nextFileName, nextLineNumber), mySession);
    return eq_xhry8p_a0e0h(lastPointer, nextPointer);
  }
  private static boolean eq_xhry8p_a0e0h(Object a, Object b) {
    return (a != null ? a.equals(b) : a == b);
  }
}