1 files changed, 27 insertions, 0 deletions
diff --git a/ast.h b/ast.h
new file mode 100644
index 0000000..1a6f159
--- /dev/null
+++ b/ast.h
@@ -0,0 +1,27 @@
+#pragma once
+
+enum NodeKind
+{
+    NODE_CHAR,
+    TYPE_DECLTYPE,
+    VALUE_DIFFERENCE,
+    STMT_EMIT
+};
+
+struct Node
+{
+    enum NodeKind kind;
+    int line;
+    char character;
+    struct Node* first;
+    struct Node* second;
+    struct Node* next;
+};
+
+struct Node* node_leaf(enum NodeKind kind);
+struct Node* node_char(char character);
+struct Node* node_unary(enum NodeKind kind, struct Node* first);
+struct Node* node_binary(enum NodeKind kind, struct Node* first, struct Node* second);
+
+struct Node* node_append(struct Node* list, struct Node* node);
+void node_free(struct Node* node);