1 files changed, 71 insertions, 0 deletions
diff --git a/inc/treeify.h b/inc/treeify.h
new file mode 100644
index 0000000..3af67f8
--- /dev/null
+++ b/inc/treeify.h
@@ -0,0 +1,71 @@
+#ifndef TREEIFY_H
+#define TREEIFY_H
+
+#include <context.h>
+
+enum node_type {
+	EXPRESSION,
+	DECLARATION,
+};
+
+/**
+ * Expressions
+ */
+
+// (*f* x y)
+struct node_expression_identifier {
+	ctx_string name; // f
+	ctx_string type; // u32
+};
+
+// (f *x* *y*)
+struct node_expression_parameter {
+	ctx_string name; // x or y
+	ctx_string type; // u32
+};
+
+// *(f x y)*
+struct node_expression {
+	struct node_expression_identifier *callee; // f
+	struct node_expression_parameter *parameters; // x y
+};
+
+/**
+ * Declarations
+ */
+
+// *u32:f* u32:x u32:y = (...)
+struct node_declaration_callee {
+	ctx_string name; // f
+	ctx_string type; // u32
+};
+
+// u32:f *u32:x* *u32:y* = (...)
+struct node_declaration_parameter {
+	ctx_string name; // x or y
+	ctx_string type; // u32
+};
+
+// *u32:f u32:x u32:y* = (...) OR
+// *u32:a* = ...
+struct node_declaration {
+	struct node_declaration_callee callee; // f
+	struct node_declaration_parameter *parameters; // x y OR NULL
+};
+
+struct node {
+	enum node_type type;
+	/* struct node *next; */
+	void *data;
+};
+
+struct tree {
+	struct node *node;
+};
+
+struct tree *tree_create(void);
+void tree_destroy(struct tree *tree);
+
+void treeify(struct ctx *ctx);
+
+#endif