How to explicitly qualify my modules with the package

[Daniel Keep]

Andy Little wrote:
> Cant figure out how the package qualifier should work or what syntax I should use to get it working.
> 
> E.g.
> 
> Where gcd is defined in sub-dir meta of this-file source dir as:
> /*
> "D:/projects/dmd/meta/mod_gcd.d"
> //------------------------------------------------------
> module meta.mod_gcd;
> 
> template gcd( T, T N, T D){
>    static if (D== 0){
>       static const T value = N;
>    }
>    else {
>       static const T value = gcd!(T,D, (N % D)).value;
>    }
> }
> //------------------------------------------------------
> */
> 
> static import std.stdio;
> // works ok...
> static if(1){
>    static const bool USE_PACKAGE_QUALIFIER =false;
> //######################
>    import meta.mod_gcd;
> //#####################
> }
> 
> else {
> /* in this path compilation fails with:
> 
> D:\Projects\dmd>dmd -c test1.d
> test1.d(49): Error: template identifier gcd is not a member of meta
> Error: no property 'value' for type 'int'
> */
> 
>    static const int USE_PACKAGE_QUALIFIER =true;
> //###########################
>    static import meta.mod_gcd;
> //###########################
> }
> 
> 
> 
> int main(char[][] args)
> {
>    static if(USE_PACKAGE_QUALIFIER){
> //##########################################
>       std.stdio.writefln("%d\n",meta.gcd!(int,8,64).value); //# line 49

This fails because gcd is in the 'meta.mod_gcd' module.  It would be
like saying 'std.writefln'.

> //##########################################
>    }
>    else{
>       std.stdio.writefln("%d\n",gcd!(int,8,64).value);
>    }
> 
>    return 0;
> }

-- 
Unlike Knuth, I have neither proven or tried the above; it may not even
make sense.

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