Finished assignment expression

1 files changed, 33 insertions, 3 deletions

diff --git a/c_compiler/include/expression.hpp b/c_compiler/include/expression.hpp
index d446972..d77d9d5 100644
--- a/c_compiler/include/expression.hpp
+++ b/c_compiler/include/expression.hpp
@@ -4,25 +4,55 @@
 #include "node.hpp"
 
 
-class Expression : public Node {
+class Expression : public Node
+{
 public:
+    virtual ~Expression();
+    
+    virtual VariableStackBindings printasm(VariableStackBindings bindings) const = 0;
+    
     virtual void print() const;
     virtual void printxml() const;
+    virtual int32_t getPostfixStackPosition(VariableStackBindings bindings) const;
+};
+
+
+class OperationExpression : public Expression
+{
+protected:
+    Expression* lhs;
+    Expression* rhs;
+public:
+    OperationExpression(Expression* _lhs, Expression* _rhs);
+    virtual ~OperationExpression();
+
     virtual VariableStackBindings printasm(VariableStackBindings bindings) const = 0;
 };
 
 
-class Identifier : public Expression {
+class AssignmentExpression : public OperationExpression
+{
+public:
+    AssignmentExpression(Expression* _lhs, Expression* _rhs);
+
+    virtual VariableStackBindings printasm(VariableStackBindings bindings) const;
+};
+
+
+class Identifier : public Expression
+{
 private:
     std::string m_id;
 public:
     Identifier(const std::string& id);
 
     virtual VariableStackBindings printasm(VariableStackBindings bindings) const;
+    virtual int32_t getPostfixStackPosition(VariableStackBindings bindings) const;
 };
 
 
-class Constant : public Expression {
+class Constant : public Expression
+{
 private:
     int32_t m_constant;
 public: