// Sets the count of TextPositions referencing the node's BeforeEnd edge.
// Since nodes don't usually have any references, we demand allocate
// storage when needed.
protected void SetBeforeEndReferenceCount(ref EdgeReferenceCounts edgeReferenceCounts, int value)
{
EdgeReferenceCounts originalCounts;
if (edgeReferenceCounts != null)
{
if (value == 0 &&
edgeReferenceCounts.BeforeStartReferenceCount == 0 &&
edgeReferenceCounts.AfterStartReferenceCount == 0 &&
edgeReferenceCounts.AfterEndReferenceCount == 0)
{
edgeReferenceCounts = null;
}
else
{
if (!(edgeReferenceCounts is ElementEdgeReferenceCounts))
{
// We need a slightly bigger object, which tracks the inner edges.
Invariant.Assert(this is TextTreeTextElementNode, "Non-element nodes should never have inner edge references!");
originalCounts = edgeReferenceCounts;
edgeReferenceCounts = new ElementEdgeReferenceCounts();
edgeReferenceCounts.BeforeStartReferenceCount = originalCounts.BeforeStartReferenceCount;
edgeReferenceCounts.AfterEndReferenceCount = originalCounts.AfterEndReferenceCount;
}
edgeReferenceCounts.BeforeEndReferenceCount = value;
}
}
else if (value != 0)
{
edgeReferenceCounts = new ElementEdgeReferenceCounts();
edgeReferenceCounts.BeforeEndReferenceCount = value;
}
}
// Sets the count of TextPositions referencing the node's BeforeEnd edge.
// Since nodes don't usually have any references, we demand allocate
// storage when needed.
protected void SetBeforeEndReferenceCount(ref EdgeReferenceCounts edgeReferenceCounts, int value)
{
EdgeReferenceCounts originalCounts;
if (edgeReferenceCounts != null)
{
if (value == 0 &&
edgeReferenceCounts.BeforeStartReferenceCount == 0 &&
edgeReferenceCounts.AfterStartReferenceCount == 0 &&
edgeReferenceCounts.AfterEndReferenceCount == 0)
{
edgeReferenceCounts = null;
}
else
{
if (!(edgeReferenceCounts is ElementEdgeReferenceCounts))
{
// We need a slightly bigger object, which tracks the inner edges.
Invariant.Assert(this is TextTreeTextElementNode, "Non-element nodes should never have inner edge references!");
originalCounts = edgeReferenceCounts;
edgeReferenceCounts = new ElementEdgeReferenceCounts();
edgeReferenceCounts.BeforeStartReferenceCount = originalCounts.BeforeStartReferenceCount;
edgeReferenceCounts.AfterEndReferenceCount = originalCounts.AfterEndReferenceCount;
}
edgeReferenceCounts.BeforeEndReferenceCount = value;
}
}
else if (value != 0)
{
edgeReferenceCounts = new ElementEdgeReferenceCounts();
edgeReferenceCounts.BeforeEndReferenceCount = value;
}
}