added GuEnum interface for iterating over maps in the C runtime

1 files changed, 9 insertions, 1 deletions

diff --git a/src/runtime/c/gu/map.h b/src/runtime/c/gu/map.h
index 327d6ea6a..33edc2a00 100644
--- a/src/runtime/c/gu/map.h
+++ b/src/runtime/c/gu/map.h
@@ -4,8 +4,9 @@
 #include <gu/hash.h>
 #include <gu/mem.h>
 #include <gu/exn.h>
+#include <gu/enum.h>
 
-typedef const struct GuMapItor GuMapItor;
+typedef struct GuMapItor GuMapItor;
 
 struct GuMapItor {
 	void (*fn)(GuMapItor* self, const void* key, void* value,
@@ -67,6 +68,13 @@ gu_map_insert(GuMap* ht, const void* key);
 void
 gu_map_iter(GuMap* ht, GuMapItor* itor, GuExn* err);
 
+typedef struct {
+	const void* key;
+	void* value;
+} GuMapKeyValue;
+
+GuEnum*
+gu_map_enum(GuMap* ht, GuPool* pool);
 
 typedef GuMap GuIntMap;