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digitalmars.D.learn - Public visible entities published by a module

reply Cecil Ward <cecil cecilward.com> writes:
A bit of a weird question, and I’m not sure how to word it. Say I 
have a module, and I’d like to list / enumerate all the public 
visible things that the module exports / publishes ‘ makes 
visible. Is there a way of doing that ? Of getting that kind of 
listing?

I’m wondering about information leaking when things should be 
encapsulated.
Jul 07 2023
parent reply Anonymouse <zorael gmail.com> writes:
On Friday, 7 July 2023 at 17:46:09 UTC, Cecil Ward wrote:

 A bit of a weird question, and I’m not sure how to word it. Say 
 I have a module, and I’d like to list / enumerate all the 
 public visible things that the module exports / publishes ‘ 
 makes visible. Is there a way of doing that ? Of getting that 
 kind of listing?

 I’m wondering about information leaking when things should be 
 encapsulated.


I did this. It's super ugly and even has `__traits(compiles)` in 
there, but as a quick and dirty solution it served well enough.

```d
void printPublicMembersOfModule(string module_)()
{
     mixin("import thisModule = " ~ module_ ~ ";");

     foreach (symstring; __traits(allMembers, thisModule))
     {
         alias symbol = __traits(getMember, thisModule, symstring);
         static if (
             __traits(compiles, __traits(getVisibility, symbol)) &&
             __traits(getVisibility, symbol) == "public")
         {
             pragma(msg, symstring);
         }
     }
}

void main()
{
     printPublicMembersOfModule!"std.stdio"();
}
```

https://run.dlang.io/is/tvNDdp
Jul 07 2023
parent Cecil Ward <cecil cecilward.com> writes:
On Friday, 7 July 2023 at 19:49:06 UTC, Anonymouse wrote:

 On Friday, 7 July 2023 at 17:46:09 UTC, Cecil Ward wrote:

 [...]


 I did this. It's super ugly and even has `__traits(compiles)` 
 in there, but as a quick and dirty solution it served well 
 enough.

 ```d
 void printPublicMembersOfModule(string module_)()
 {
     mixin("import thisModule = " ~ module_ ~ ";");

     foreach (symstring; __traits(allMembers, thisModule))
     {
         alias symbol = __traits(getMember, thisModule, 
 symstring);
         static if (
             __traits(compiles, __traits(getVisibility, symbol)) 
 &&
             __traits(getVisibility, symbol) == "public")
         {
             pragma(msg, symstring);
         }
     }
 }

 void main()
 {
     printPublicMembersOfModule!"std.stdio"();
 }
 ```

 https://run.dlang.io/is/tvNDdp


Wow, thankyou so much for your generous reply.
Jul 07 2023