Added INPUT, OUTPUT and DECLARE

1 files changed, 25 insertions, 0 deletions

diff --git a/include/cps/Parser.h b/include/cps/Parser.h
new file mode 100644
index 0000000..c24184f
--- /dev/null
+++ b/include/cps/Parser.h
@@ -0,0 +1,25 @@
+#pragma once
+#include "cps/Lexer.h"
+#include "cps/AST.h"
+#include <vector>
+#include <memory>
+
+namespace cps {
+
+class Parser {
+    Lexer &Lex;
+    int CurTok;
+
+    int getNextToken();
+    std::unique_ptr<ExprAST> ParseExpression();
+    std::unique_ptr<ExprAST> ParseNumberExpr();
+    std::unique_ptr<ExprAST> ParseParenExpr(); // 预留
+    std::unique_ptr<ExprAST> ParseIdentifierExpr();
+
+public:
+    Parser(Lexer &L) : Lex(L) { getNextToken(); }
+    
+    std::vector<std::unique_ptr<StmtAST>> Parse();
+};
+
+} // namespace cps