Why use __FILE_, __LINE__ in class_eval?

[Ben Johnson]

I've noticed in code that some people do:

class_eval src

amd some do

class_eval src, __FILE__, __LINE__

What exactly is the difference and why should I use one over the other?

Thanks for your help.

 

[ara.t.howard]

I've noticed in code that some people do:

class_eval src

amd some do

class_eval src, __FILE__, __LINE__

What exactly is the difference and why should I use one over the
other?

Thanks for your help.

raise an error inside the eva'd code and see

a @ http://codeforpeople.com/