[compiler] Parse return statementsmain

Laid groundwork for statements and AST trees.
Currently return values are not supported, expression parsing must be implemented first.
Also stopped dumping parsed type definitions.

Signed-off-by: Quinn Stephens <quinn@osmora.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/list.h b/include/list.h
index 0364f7c..69d0c33 100644
--- a/include/list.h
+++ b/include/list.h
@@ -7,6 +7,7 @@
 #ifndef _LIST_H
 #define _LIST_H
 
+#include <stdbool.h>
 #include <stddef.h>
 
 struct list_entry {
@@ -20,6 +21,12 @@ struct list {
     size_t length;
 };
 
+static inline bool
+list_is_empty(struct list *list)
+{
+    return list->head == (struct list_entry*)list;
+}
+
 static inline void
 list_remove(struct list_entry *entry)
 {