Re: Safe copy-paste using mixin

[Andrea Fontana via Digitalmars-d-learn]

On Monday, 31 August 2015 at 10:38:41 UTC, drug wrote:
On 31.08.2015 13:35, drug wrote:
I have code that is being duplicated in several places and I'd 
like to
use mixins to simplify code maintenance but I failed to do it. 
For
example 
https://github.com/drug007/hdf5-d-examples/blob/tmp/examples/aux.d

Lines 80-82, 91-93 and 99-101 are identical, how can I use 
mixin here?
I failed to do it because mixins demand declarations, not just 
code.

Of course I can just trasnfer these lines below, but the 
question remains.

Just create a function that return a string with those three 
lines and mixin it!

Like:

import std.stdio;

string toMix( string a, string b, string c)
{
	return `string a = "` ~ a ~ `";` ~ `string b = "` ~ b ~ `";` 
`string c = "` ~ c ~ `";`;
}


void main()
{
        
        {
                mixin(toMix("hello", " world", " 1"));
                writeln(a,b,c);
        }
        
        {
                mixin(toMix("hello", " world", " 2"));
                writeln(a,b,c);
        }
}