1 files changed, 14 insertions, 0 deletions
diff --git a/src/writer.c b/src/writer.c
index 05f83b0f..e14814bb 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -21,12 +21,26 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "byte_sink.h"
+#include "node.h"
+#include "stack.h"
+#include "string_utils.h"
+#include "uri_utils.h"
+
 typedef struct {
 	SerdNode* graph;
 	SerdNode* subject;
 	SerdNode* predicate;
 } WriteContext;
 
+typedef enum {
+	FIELD_NONE,
+	FIELD_SUBJECT,
+	FIELD_PREDICATE,
+	FIELD_OBJECT,
+	FIELD_GRAPH
+} Field;
+
 static const WriteContext WRITE_CONTEXT_NULL = { NULL, NULL, NULL };
 
 typedef enum {