public String getValue ( ) { for ( ScopeNode scope = NodeTreeUtils . getParentScope ( this ) ; scope != null ; scope = NodeTreeUtils . getParentScope ( scope ) ) { ExpressionGroupNode value = scope . getVariable ( _name ) ; if ( value == null ) { continue ; } return value . toString ( ) ; } return _name ; // Unable to find the variable's value, return the name for now (helpful for debugging) }
Search up the scope tree to locate the variable s value . The parser has already verified that the variable is defined .