SetReferenceStructChange.java

package jetbrains.mps.vcs.diff.changes;

/*Generated by MPS */

import org.jetbrains.mps.openapi.model.SNodeId;
import org.jetbrains.annotations.NotNull;
import jetbrains.mps.vcs.diff.ChangeSet;
import org.jetbrains.mps.openapi.language.SReferenceLink;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SModelReference;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.model.SReference;
import jetbrains.mps.smodel.DynamicReference;
import jetbrains.mps.vcs.diff.StructChangeSet;
import jetbrains.mps.smodel.StaticReference;

public class SetReferenceStructChange extends SetReferenceChange {
  private final SNodeId myOppositeNodeId;
  public SetReferenceStructChange(@NotNull ChangeSet changeSet, @NotNull SNodeId sourceNodeId, SNodeId newSourceNodeId, @NotNull SReferenceLink role, @Nullable SModelReference targetModelReference, @Nullable SNodeId targetNodeId, @Nullable String resolveInfo) {
    super(changeSet, sourceNodeId, role, targetModelReference, targetNodeId, resolveInfo);
    myOppositeNodeId = newSourceNodeId;
  }
  @NotNull
  @Override
  public SNodeId getAffectedNodeId(boolean isNewModel) {
    return (isNewModel ? myOppositeNodeId : super.getAffectedNodeId(false));
  }
  @Override
  public void apply(@NotNull SModel model, @NotNull NodeCopier nodeCopier) {
    assert model == getChangeSet().getOldModel();

    SNode node = model.getNode(getAffectedNodeId(false));
    assert node != null;
    if (getTargetNodeId() == null && getResolveInfo() == null) {
      node.setReferenceTarget(getRoleLink(), null);
    } else {
      SModelReference targetModelReference = (getTargetModelReference() == null ? model.getReference() : getTargetModelReference());
      SReference reference;
      if (getTargetNodeId() == null) {
        reference = new DynamicReference(getRoleLink(), node, targetModelReference, getResolveInfo());
      } else {
        // try to convert SNodeId 
        StructChangeSet changeset = (StructChangeSet) getChangeSet();
        SNodeId targetNodeId = getTargetNodeId();
        SNodeId mapToOldId = changeset.mapToOldId(targetNodeId);
        if (mapToOldId != null && eq_xjb9w7_a0a4a0c0a4a3(targetModelReference, changeset.getNewModel().getReference())) {
          targetNodeId = mapToOldId;
        }
        reference = new StaticReference(getRoleLink(), node, targetModelReference, targetNodeId, getResolveInfo());
      }
      node.setReferenceTarget(getRoleLink(), null);
      node.setReference(getRoleLink(), reference);
    }
  }
  @NotNull
  @Override
  protected ModelChange createOppositeChange() {
    SNode node = getChangeSet().getOldModel().getNode(getAffectedNodeId(false));
    assert node != null;
    SReference ref = node.getReference(getRoleLink());
    SModelReference targetModel = check_xjb9w7_a0d0e(ref);
    if (eq_xjb9w7_a0e0e(getChangeSet().getOldModel().getReference(), targetModel)) {
      // This is internal reference 
      targetModel = null;
    }

    return new SetReferenceStructChange(getChangeSet().getOppositeChangeSet(), getAffectedNodeId(true), getAffectedNodeId(false), getRoleLink(), targetModel, check_xjb9w7_f0a6a4(ref), check_xjb9w7_g0a6a4(((jetbrains.mps.smodel.SReference) ref)));
  }
  private static boolean eq_xjb9w7_a0a4a0c0a4a3(Object a, Object b) {
    return (a != null ? a.equals(b) : a == b);
  }
  private static SModelReference check_xjb9w7_a0d0e(SReference checkedDotOperand) {
    if (null != checkedDotOperand) {
      return checkedDotOperand.getTargetSModelReference();
    }
    return null;
  }
  private static boolean eq_xjb9w7_a0e0e(Object a, Object b) {
    return (a != null ? a.equals(b) : a == b);
  }
  private static SNodeId check_xjb9w7_f0a6a4(SReference checkedDotOperand) {
    if (null != checkedDotOperand) {
      return checkedDotOperand.getTargetNodeId();
    }
    return null;
  }
  private static String check_xjb9w7_g0a6a4(jetbrains.mps.smodel.SReference checkedDotOperand) {
    if (null != checkedDotOperand) {
      return checkedDotOperand.getResolveInfo();
    }
    return null;
  }
}