Getting Error in the following trigger

Question

Error: Compile Error: unexpected token: 'List' at line 6 column 1

trigger AbortInsert on Adder__c (before insert)
{


System.debug('****************************************');
 List& amp;lt;Adder__c> adders = Trigger.new;



    for (Adder__c adder: adders)
    {
        if(AdderExt.fakeSave == true)
        {
            // AdderExt controls an editor that should only work on one row at a time
            System.assertEquals(adders.size(), 1);

            // Provide the evaluation results to the line item controller
            AdderExt.evaluationResults = adder;

            System.debug('adder='+adder);

            // Abort the save
            adder.addError('Throwing error to prevent DML for this formula only evaluation');
        }
    }
}

Answer 1

I'm not sure why you're using a List to put Trigger.new in, this seems like a waste of memory to me. Also, this line seems incorrect in general (did you try changing it to a HTML-friendly equivalent?):

List& amp;lt;Adder__c> adders = Trigger.new;

Please replace your code with:

trigger AbortInsert on Adder__c (before insert) 
{

    System.debug('****************************************');

    for (Adder__c adder: Trigger.new)
    {
        if(AdderExt.fakeSave == true)
        {
            // AdderExt controls an editor that should only work on one row at a time
            System.assertEquals(Trigger.new.size(), 1);

            // Provide the evaluation results to the line item controller
            AdderExt.evaluationResults = adder;

            System.debug('adder='+adder);

            // Abort the save
            adder.addError('Throwing error to prevent DML for this formula only evaluation');
        }
    }
}

As you can see we now use Trigger.new.size() directly in the for loop. Inside the for-loop we use Trigger.size instead of adders.size().