1 files changed, 17 insertions, 0 deletions

diff --git a/src/gamestate.cpp b/src/gamestate.cpp
index 7b2d228..041af86 100644
--- a/src/gamestate.cpp
+++ b/src/gamestate.cpp
@@ -756,6 +756,23 @@ void GameState::parse( const AstBranch::NodeList &lCode )
                         push( popDeref() );
                         break;
 
+                case AstNode::tExists:
+                        {
+                                Variable v = pop();
+                                VariableRef r = v.getVariableRef();
+                                push( Variable( hasVariable( r.sName, r.sid ) ) );
+                        }
+                        break;
+
+                case AstNode::tDelete:
+                        {
+                                Variable v = pop();
+                                VariableRef r = v.getVariableRef();
+                                delVariable( r.sName, r.sid );
+                                push( Variable( Variable::tNull ) );
+                        }
+                        break;
+
                 // tLeafLiteral
                 case AstNode::tVarName:
                 case AstNode::tLiteral: