From 9f0aa0b06666dc99515a4250085b31f0efa81af8 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 11 Sep 2021 17:16:51 +0800
Subject: ...

---
 include/cru/parse/Grammar.hpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include/cru/parse/Grammar.hpp')

diff --git a/include/cru/parse/Grammar.hpp b/include/cru/parse/Grammar.hpp
index 42649c30..98bed1b1 100644
--- a/include/cru/parse/Grammar.hpp
+++ b/include/cru/parse/Grammar.hpp
@@ -1,6 +1,7 @@
 #pragma once
 #include "Production.hpp"
 
+#include <unordered_map>
 #include <vector>
 
 namespace cru::parse {
@@ -38,6 +39,9 @@ class Grammar : public Object {
   Grammar* Clone() const;
 
  public:  // Algorithms
+  std::unordered_map<Nonterminal*, std::vector<Production*>>
+  GenerateLeftProductionMap() const;
+
   void EliminateLeftRecursions();
 
  private:
-- 
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