Why the @ in @safe? & UDAs

[Adam D. Ruppe]

On Sunday, 10 November 2013 at 19:30:30 UTC, Michael wrote:
> search/replace regexp ?)

I think the way I'd do it is combine that with the compiler. So 
you compile your code. The compiler generates an error. The fixup 
script checks the errors against the pattern it has and then does 
the necessary changes on  the file, then writes it back out 
(perhaps doing a backup and/or user confirmation, like replacing 
files on a copy: yes, no, yes to all, with yes to all just 
following that same pattern - if it is a different class of error 
message, or if the replace would replace two things when it 
should only be one, it asks for confirmation again)

This actually shouldn't be too hard to write for quite a few 
things, and using actual errors would be more reliable than a 
plain find/replace.

The interactive session can go pretty fast

$ fixup
error foo.d line 30 undefined identifier safe
    @safe void foo() {
replace with
    safe void foo() { # BTW I'd highlight the replacement in color 
too
y/n/yes to all/no to all? yes to all

boom