Use opaque node API

1 files changed, 5 insertions, 4 deletions

diff --git a/src/node.c b/src/node.c
index da0a7d21..289e5b51 100644
--- a/src/node.c
+++ b/src/node.c
@@ -118,8 +118,9 @@ serd_node_new_uri_from_node(const SerdNode* uri_node,
                             const SerdURI*  base,
                             SerdURI*        out)
 {
-	return (uri_node->type == SERD_URI && uri_node->buf)
-		? serd_node_new_uri_from_string(uri_node->buf, base, out)
+	const char* uri_str = serd_node_string(uri_node);
+	return (uri_node && uri_node->type == SERD_URI && uri_str)
+		? serd_node_new_uri_from_string(uri_str, base, out)
 		: SERD_NODE_NULL;
 }
 
@@ -359,13 +360,13 @@ serd_node_type(const SerdNode* node)
 const char*
 serd_node_string(const SerdNode* node)
 {
-	return node->buf;
+	return node ? node->buf : NULL;
 }
 
 size_t
 serd_node_length(const SerdNode* node)
 {
-	return node->n_bytes;
+	return node ? node->n_bytes : 0;
 }
 
 SerdNodeFlags