parser

1 files changed, 31 insertions, 0 deletions

diff --git a/include/parser/parser.h b/include/parser/parser.h
new file mode 100644
index 0000000..3955e2e
--- /dev/null
+++ b/include/parser/parser.h
@@ -0,0 +1,31 @@
+#ifndef PARSER_H
+#define PARSER_H
+
+#include "lexer/token.h"
+#include "parser/ast_node.h"
+
+#include <vector>
+
+class Parser {
+public:
+    explicit Parser(const std::vector<Token>& tokens);
+    std::unique_ptr<Program> parse(); 
+
+private:
+    std::vector<Token> tokens_;
+    int position_;
+
+    std::unique_ptr<ASTNode> parseStatement();
+    std::unique_ptr<ASTNode> parseExpression();
+    std::unique_ptr<ASTNode> parseAddSub();
+    std::unique_ptr<ASTNode> parseMulDiv();
+    std::unique_ptr<ASTNode> parsePrimary();
+    std::unique_ptr<ASTNode> parseDeclaration();
+    std::unique_ptr<ASTNode> parseAssignment();
+    Token advance();
+    Token peek();
+    bool isAtEnd();
+    void error(std::string s);
+};
+
+#endif