newStream

git-svn-id: svn+q:///qpdf/trunk@991 71b93d88-0707-0410-a8cf-f5a4172ac649

1 files changed, 19 insertions, 0 deletions

diff --git a/libqpdf/QPDF_Stream.cc b/libqpdf/QPDF_Stream.cc
index 1f48b2c1..87c2daa9 100644
--- a/libqpdf/QPDF_Stream.cc
+++ b/libqpdf/QPDF_Stream.cc
@@ -40,6 +40,19 @@ QPDF_Stream::~QPDF_Stream()
 {
 }
 
+void
+QPDF_Stream::setObjGen(int objid, int generation)
+{
+    if (! ((this->objid == 0) && (this->generation == 0)))
+    {
+	throw std::logic_error(
+	    "attempt to set object ID and generation of a stream"
+	    " that already has them");
+    }
+    this->objid = objid;
+    this->generation = generation;
+}
+
 std::string
 QPDF_Stream::unparse()
 {
@@ -353,6 +366,12 @@ QPDF_Stream::pipeStreamData(Pipeline* pipeline, bool filter,
 		QUtil::int_to_string(desired_length) + " bytes");
 	}
     }
+    else if (this->offset == 0)
+    {
+	QTC::TC("qpdf", "QPDF_Stream pipe no stream data");
+	throw std::logic_error(
+	    "pipeStreamData called for stream with no data");
+    }
     else
     {
 	QTC::TC("qpdf", "QPDF_Stream pipe original stream data");