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digitalmars.D.learn - How to find all modules in a package?

reply Domain <dont_email empty.com> writes:
I want to find out all public functions in all modules in a 
package. Can I do that at compile time?
Aug 02 2022
next sibling parent Piotr Mitana <piotr.mitana e.email> writes:
On Wednesday, 3 August 2022 at 03:36:55 UTC, Domain wrote:

 I want to find out all public functions in all modules in a 
 package. Can I do that at compile time?


I think it's not possible.
Aug 03 2022
prev sibling next sibling parent Adam D Ruppe <destructionator gmail.com> writes:
On Wednesday, 3 August 2022 at 03:36:55 UTC, Domain wrote:

 I want to find out all public functions in all modules in a 
 package. Can I do that at compile time?


No, D packages are not closed; anyone can add new modules to them 
at any time.
Aug 03 2022
prev sibling parent reply frame <frame86 live.com> writes:
On Wednesday, 3 August 2022 at 03:36:55 UTC, Domain wrote:

 I want to find out all public functions in all modules in a 
 package. Can I do that at compile time?


You can do something like that:

```d
static foreach (sym; __traits(allMembers, mixin("std.string")))
{
     pragma(msg, sym.stringof);
}
```

Then you would have to check if `sym` is a template or function 
or something else.
Aug 03 2022
parent reply Domain <dont_email empty.com> writes:
On Wednesday, 3 August 2022 at 12:27:32 UTC, frame wrote:

 On Wednesday, 3 August 2022 at 03:36:55 UTC, Domain wrote:

 I want to find out all public functions in all modules in a 
 package. Can I do that at compile time?


 You can do something like that:

 ```d
 static foreach (sym; __traits(allMembers, mixin("std.string")))
 {
     pragma(msg, sym.stringof);
 }
 ```

 Then you would have to check if `sym` is a template or function 
 or something else.


This give me all symbols in the package.d file.
Aug 04 2022
parent "H. S. Teoh" <hsteoh qfbox.info> writes:
On Thu, Aug 04, 2022 at 07:22:04AM +0000, Domain via Digitalmars-d-learn wrote:

 On Wednesday, 3 August 2022 at 12:27:32 UTC, frame wrote:

 On Wednesday, 3 August 2022 at 03:36:55 UTC, Domain wrote:

 I want to find out all public functions in all modules in a package.
 Can I do that at compile time?


 
 You can do something like that:
 
 ```d
 static foreach (sym; __traits(allMembers, mixin("std.string")))
 {
     pragma(msg, sym.stringof);
 }
 ```
 
 Then you would have to check if `sym` is a template or function or
 something else.


 
 This give me all symbols in the package.d file.


static foreach (sym; __traits(allMembers, mixin("std.string")))
{
    // Note that sym is already a string, there is no need to use .stringof
    static if (is(typeof(mixin(sym)) == function))
        pragma(msg, sym);
}

Note, however, that this doesn't pick up on template functions, only
non-template global functions. You can detect templates with `static if
(__traits(isTemplate, mixin(sym)))`, but in general there is no way to
know whether it's a template function, because in order to introspect it
you have to instantiate it first, but there is no general way to
automatically instantiate a template. Its arguments can be subject to
arbitrary signature constraints, and it may in theory be a template
function only for a subset of its possible arguments, so there isn't any
good way to automatically deduce what template arguments would
instantiate into a valid function.  You can only get at a template
function if you already have an instantiation of it.


T

-- 
Guns don't kill people. Bullets do.
Aug 04 2022