• Jason House <jason.james.house gmail.com> Oct 13 2009
• "Steven Schveighoffer" <schveiguy yahoo.com> Oct 13 2009

Jason House <jason.james.house gmail.com> writes:

Andrei Alexandrescu Wrote:
 
 It's simpler actually:
 
 debug void assert(T)( T expr, string delegate() msg ) {
      if(!expr)
          throw new Exception(msg);
 }
 else void assert(T)( T delegate(), string delegate() ) {
 }
 
 Hm, actually it's more complicated than your version :o).
 
 
 Andrei




You should be throwing AssertError

I really like lazy for log messages and asserts. I like the implicit cast to
(scope) pure delegate idea. It works well in those contexts.

How hard would it be to use a library assert in ctfe context?

"Steven Schveighoffer" <schveiguy yahoo.com> writes:

On Tue, 13 Oct 2009 08:21:44 -0400, Jason House  
<jason.james.house gmail.com> wrote:

 Andrei Alexandrescu Wrote:
 It's simpler actually:

 debug void assert(T)( T expr, string delegate() msg ) {
      if(!expr)
          throw new Exception(msg);
 }
 else void assert(T)( T delegate(), string delegate() ) {
 }

 Hm, actually it's more complicated than your version :o).


 Andrei




 You should be throwing AssertError

 I really like lazy for log messages and asserts. I like the implicit  
 cast to (scope) pure delegate idea. It works well in those contexts.


With macros, this can be solved without lazy.

I'd say work on getting macros working, then drop lazy and assert.

-Steve