ch-ch-update: series, closed-form series, and strides

[Ary Borenszweig]

Andrei Alexandrescu escribió:
> Christopher Wright wrote:
>> Andrei Alexandrescu wrote:
>>> The truth is, the reasons against using strings for short functions 
>>> are shrinking. I mean, you don't want to not use strings just to not 
>>> use strings, right? I hope I convinced you that strings are 
>>> unbeatable for short functions that don't need access to local state, 
>>> their efficiency is exemplary, and their error messages are not half 
>>> bad.
>>
>> Yes, but they don't interact with an IDE.
> 
> It's the IDE that doesn't yet interact with them.

Hmm... How can the IDE tell that some T in a template, if it's a string, 
must have "a" and "n" as their parameters in expressions, their type, etc.?

Anyway, I like the usage of strings if it's short and doesn't local 
state, you've convinced me. :-)

As for the errors, the compiler should hold a stack of template 
instances invocations (same for string mixins), and add those in any 
error message report. I'll try to do that in Descent to see if it's enough.