Deleting entity segfaults

[andrew]

From a QCAD user:

Why does this code segfault?

Code: Select all

var op = new RAddObjectsOperation();
op.addObject(entity);
di.applyOperation(op);

...

op = new RAddObjectsOperation();
op.deleteObject(entity);
di.applyOperation(op);

[andrew]

Entity pointers should not be used more than once in an operation. If you need to apply an operation on the same entity, you need to retrieve a new pointer first:

Code: Select all

var op = new RAddObjectsOperation();
op.addObject(entity);
di.applyOperation(op);
var id = entity.getId();

...

op = new RAddObjectsOperation();
entity = doc.queryEntity(id);
op.deleteObject(entity);
di.applyOperation(op);