public bool visitReadStmt(Statement.Read stmt)
{
if (environment.Contains(stmt.Target.Name))
{
return(true);
}
else
{
ErrorWriter.Write(stmt.Target, "Cannot read to uninitialized variable {0}", stmt.Target.Name);
return(false);
}
}
public object visitReadStmt(Statement.Read stmt)
{
var target = stmt.Target;
var input = Console.ReadLine();
var type = environment.GetType(target.Name);
switch (type)
{
case "int":
try
{
environment.Assign(target.Name, Int32.Parse(input));
}
catch
{
runtimeError(target, "Could not parse to int");
}
break;
case "bool":
try
{
environment.Assign(target.Name, Boolean.Parse(input));
}
catch
{
runtimeError(target, "Could not parse to bool");
}
break;
default:
environment.Assign(target.Name, input);
break;
}
return(null);
}
