Re: Private functions and allMembers

[TheFlyingFiddle]

On Friday, 3 January 2014 at 18:30:56 UTC, Carl wrote:

Here is some test code:

// --- start --- //
// main.d //
import std.stdio;
import extra;

void main()
{
        void function() func;

        foreach(mem; __traits(allMembers, __traits(parent, test)))
        {
                foreach(att; __traits(getAttributes, mixin(mem)))
                {
                        if(att == "good") func = &mixin(mem);
                }
        }

        if(func) func();
        else writeln("func not assigned");
}

// extra.d //
import std.stdio;

@("good")
public void test()
{
        writeln("test()");
}

@("bad")
private void badtest()
{
}
// --- end --- //


main.d(13): Error: module main function extra.badtest is private
main.d(15): Error: module main function extra.badtest is private

I understand the need to prevent access to private members, but
how does one work around this?
Adding an if statment with __traits(compiles, mixin(mem)) still
gives errors. However, pragma(msg... shows it does return false
for the private function.

void main()
{
        void function() func;

        foreach(mem; __traits(allMembers, extra))
        {
                static if(__traits(compiles, mixin(mem)))
                foreach(att; __traits(getAttributes, mixin(mem)))
                {
                        if(att == "good") func = &mixin(mem);
                }
        }

        if(func) func();
        else writeln("func not assigned");
}

This works for me. DMD 2.064.2