adding ExpressionStatement

inc/AST/ASTVisitor.h

@@ -10,6 +10,7 @@
 #include "StatementList.h"
 #include "ValueList.h"
 #include "VariableDefinition.h"
+#include "ExpressionStatement.h"
 
 class ASTVisitor {
 public:
@@ -19,6 +20,7 @@ public:
 	virtual void visit(AssignmentExpression* e) = 0;
 	virtual void visit(BinOp* e) = 0;
 	virtual void visit(ConstantExpression* e) = 0;
+	virtual void visit(ExpressionStatement* e) = 0;
 	virtual void visit(IfStatement* e) = 0;
 	virtual void visit(ParameterList* e) = 0;
     virtual void visit(Scope* e) = 0;

inc/AST/ExpressionStatement.h

@@ -0,0 +1,20 @@
+#ifndef EXPRESSIONSTATEMENT_H
+#define EXPRESSIONSTATEMENT_H
+
+#include "AST/Expression.h"
+#include "AST/Statement.h"
+
+class ExpressionStatement : public Statement
+{
+public:
+	ExpressionStatement(Expression* expr);
+	virtual ~ExpressionStatement();
+
+	virtual void accept(ASTVisitor* visitor);
+
+	Expression* getExpr();
+private:
+	Expression* expr_;
+};
+
+#endif // EXPRESSIONSTATEMENT_H