diff --git a/src/syntax.c b/src/syntax.c
index 4e4971f..c0fa0cf 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -2,6 +2,10 @@
 
 #include "syntax.h"
 
+bool se_istraversable(struct SyntaxElement* syntaxtree) {
+	return syntaxtree->type == TREE && syntaxtree->content != NULL;
+}
+
 struct SyntaxElement* se_create(void) {
 	struct SyntaxElement* syntaxelement = malloc(sizeof(struct SyntaxElement));
 	syntaxelement->type = NONE;
diff --git a/src/syntax.h b/src/syntax.h
index 5a8b1e5..83e83a9 100644
--- a/src/syntax.h
+++ b/src/syntax.h
@@ -1,5 +1,7 @@
 #ifndef SYNTAX_H
 #define SYNTAX_H
+#include <stdbool.h>
+
 enum SyntaxElementType {
 	TREE,
 	TOKEN,
@@ -16,6 +18,7 @@ struct SyntaxElement {
 };
 
 void se_clean(struct SyntaxElement* syntaxtree);
+bool se_istraversable(struct SyntaxElement* syntaxtree);
 struct SyntaxElement* se_create(void);
 struct SyntaxElement* se_init(void);
 struct SyntaxElement* se_bottom(struct SyntaxElement* syntaxelement);