public void Visit(LogicalExpr node)
{
VisitChildren (node);
ApplyOperatorToOperands (node);
}
private Expression ExprLogical()
{
if ((Token.Types)currentToken.Type == Token.Types.And) {
LogicalExpr logicalExpr = new LogicalExpr ("&", currentToken.Row, currentToken.Column);
Match (Token.Types.And);
logicalExpr.AddChild (Conjuct ());
Expression expression = ExprLogical ();
if (expression.Name != null) {
logicalExpr.AddChild (expression);
}
return logicalExpr;
} else if ((Token.Types)currentToken.Type == Token.Types.RightParenthesis ||
(Token.Types)currentToken.Type == Token.Types.Range ||
(Token.Types)currentToken.Type == Token.Types.Do ||
(Token.Types)currentToken.Type == Token.Types.Semicolon) {
return new LogicalExpr(null, currentToken.Row, currentToken.Column);
}
throw new SyntaxError ("invalid token to start expression " + currentToken.Type,
currentToken.Row, currentToken.Column);
}
