1 files changed, 23 insertions, 0 deletions
diff --git a/src/tree.h b/src/tree.h
new file mode 100644
index 0000000..e1dd424
--- /dev/null
+++ b/src/tree.h
@@ -0,0 +1,23 @@
+#pragma once
+
+#include "parse.h"
+#include <stddef.h>
+
+#define ACTIONS(X) \
+        X(ACTION_MATCH) \
+        X(ACTION_DEL_A) \
+        X(ACTION_ADD_B) \
+        X(ACTION_END) \
+
+#define ENUM_VALUE(NAME) NAME,
+#define STRING_ARRAY_VALUE(NAME) #NAME,
+
+enum Action {
+    ACTIONS(ENUM_VALUE)
+};
+
+static const char *ActionNames[] = {
+    ACTIONS(STRING_ARRAY_VALUE)
+};
+
+void expand_alignment(struct Tree a_tree, struct Tree b_tree, uint32_t *alignment, enum Action *emit_actions);