Can compile simplest program

1 files changed, 22 insertions, 2 deletions

diff --git a/c_compiler/include/expression.hpp b/c_compiler/include/expression.hpp
index 9e57fd4..71d993f 100644
--- a/c_compiler/include/expression.hpp
+++ b/c_compiler/include/expression.hpp
@@ -5,11 +5,31 @@
 
 class Expression : public Node {
 public:
-    Expression(const Node* expr = nullptr);
-
+    virtual void printasm() const = 0;
+    
     virtual void print() const;
     virtual void printxml() const;
+};
+
+
+class Identifier : public Expression {
+private:
+    std::string m_id;
+public:
+    Identifier(const std::string& id);
+
     virtual void printasm() const;
 };
 
+
+class Constant : public Expression {
+private:
+    int32_t m_constant;
+public:
+    Constant(const int32_t& constant);
+
+    virtual void printasm() const;
+};
+
+
 #endif