public object VisitSetExpr(SetExpr expr)
{
Resolve(expr.Value);
Resolve(expr.Object);
return(null);
}
public string Visit_SetExpr(SetExpr expr)
{
var name = (string)expr.name.value;
var obj = Parenthesize("", expr.obj);
var value = Parenthesize("", expr.value);
return("(Set " + name + " on " + obj + " to " + value + ")");
}
public Object Visit_SetExpr(SetExpr expr)
{
Object obj = Evaluate(expr.obj);
if (!(obj is LoxInstance))
{
throw new RuntimeException(expr.name.line, expr.name.column, "Only instances have fields.");
}
Object value = Evaluate(expr.value);
((LoxInstance)obj).Set(expr.name, value);
return(value);
}
public object VisitSetExpr(SetExpr expr)
{
var obj = Evaluate(expr.Object) as LoxInstance;
if (obj == null)
{
throw new LoxRuntimeException(expr.Name, "Only instances have fields.");
}
var value = Evaluate(expr.Value);
obj.Set(expr.Name, value);
return(value);
}
public Void Visit_SetExpr(SetExpr expr)
{
Resolve(expr.value);
Resolve(expr.obj);
return(null);
}
