1 files changed, 79 insertions, 0 deletions
diff --git a/include/parser.h b/include/parser.h
new file mode 100644
index 0000000..a927475
--- /dev/null
+++ b/include/parser.h
@@ -0,0 +1,79 @@
+/**
+ * @file parser.h
+ * @author x221e
+ * @brief parser
+ * @description
+ * I am opting-in to AST producing compiler design. It is not strictly
+ * needed in this context, however, it will produce optimization benefits
+ * in the future.
+ *
+ * @warning DEFINETLY NEEDS ARENA ALLOC IMPL // prototyping one under lib/
+ */
+
+#ifndef PARSER_H
+#define PARSER_H
+
+#include <stddef.h>
+
+#include <lex.h>
+
+typedef struct vector vector;
+
+struct parser {
+	struct region *tokens;
+	struct vector *result; //TODO: replace with arena,, temporary
+	struct region *buffer;
+	size_t size;
+	size_t pos;
+
+	int error;
+};
+
+enum node_type { // Or should I use macros???
+	N_INVALID = -1,
+	N_EXPR = 0,
+	N_LITERAL = 1,
+	N_UNARY,
+	N_BINARY,
+};
+
+enum data_type {
+	DT_INVALID = -1,
+	DT_UNSIGNED64,
+	DT_UNSIGNED32,
+	DT_UNSIGNED16,
+	DT_UNSIGNED8,
+};
+
+struct node_primary {
+	enum node_type ntype;
+	enum data_type type;
+
+	int is_number;
+	union {
+		size_t number;
+		char* str;
+	} value;
+};
+
+struct node_unary {
+	enum node_type ntype;
+
+	struct token operator;
+	void *expr;
+};
+
+struct node_binary {
+	enum node_type ntype;
+	struct token operator;
+	void *left;
+	void *right;
+};
+
+struct node {
+	enum node_type ntype;
+};
+
+void parser_parse(struct parser *p);
+
+#endif