Method removePathsWalk

src/IECore/PathMatcher.cpp:719–750

}

PathMatcher::NodePtr PathMatcher::removePathsWalk( Node *node, const Node *srcNode, bool shared, bool &removed )
{
	shared = shared || node->refCount() > 1;
	NodePtr result;

	if( node->terminator && srcNode->terminator )
	{
		writable( node, result, shared )->terminator = false;
		removed = true;
	}

	for( Node::ChildMap::const_iterator it = srcNode->children.begin(), eIt = srcNode->children.end(); it != eIt; ++it )
	{
		const Node::ChildMapIterator childIt = node->children.find( it->first );
		if( childIt != node->children.end() )
		{
			Node *child = childIt->second.get();
			NodePtr newChild = removePathsWalk( child, it->second.get(), shared, removed );

			if( newChild && !newChild->isEmpty() )
			{
				writable( node, result, shared )->children[childIt->first] = newChild;
			}
			else if( child->isEmpty() || ( newChild && newChild->isEmpty() ) )
			{
				writable( node, result, shared )->children.erase( childIt->first );
			}
		}
	}

	return result;
}

namespace
{