Introduce interactive interpreter.

1 files changed, 8 insertions, 0 deletions

diff --git a/JSImpl/src/ASTInterpreter.h b/JSImpl/src/ASTInterpreter.h
index 4683d63..cde3dd0 100644
--- a/JSImpl/src/ASTInterpreter.h
+++ b/JSImpl/src/ASTInterpreter.h
@@ -41,6 +41,14 @@ public:
 
     value_type& ModifyVariable(const IPLString& name);
     bool HasVariable(const IPLString& name);
+
+    class Printer
+    {
+    public:
+        virtual void PrintVariable(const char* name, double value) = 0;
+    };
+
+    void Print(Printer& p);
 private:
     void RunExpression(const ExpressionPtr& e);
     bool EvalToBool(const ExpressionPtr& e);