On Sunday, 20 August 2017 at 19:41:14 UTC, Ali Çehreli wrote:
On 08/20/2017 12:27 PM, WhatMeWorry wrote:
> // Mixins are for mixing in generated code into the
source code.
> // The mixed in code may be generated as a template
instance
> // or a string.
Yes, it means that the string must be legal D code.
> mixin(`writeln(` ~ `Hello` ~ `);` );
Yes, that's a D string but the string itself is not legal D
code because it would be mixing in the following:
writeln(Hello);
The problem is, there is no Hello defined in the program.
You need to make sure that Hello is a string itself:
writeln("Hello");
So, you need to use the following mixin:
mixin(`writeln(` ~ `"Hello"` ~ `);` );
Ali
Of course, why didn't I "see" that before. I should have slept on
it and tried again with fresh eyes. I'm keeping a "beginners
journal" on code generation. Maybe write a 101 introduction with
lots of samples and exercises.
Thanks. Don't know if you noticed, but i used some code from your
book. Hope you take that as a complement.
