AutoImplement self and parent aliases are incorrect for overloaded functions

[dlangBugzillaToGithub]

htvennik reported this on 2019-03-03T16:59:11Z

Transfered from https://issues.dlang.org/show_bug.cgi?id=19715

Description

The aliases `self` and `parent` are both declared by aliasing the function by name. For overloaded functions this means the overloads is aliased, not the exact function being implemented. This is not a problem when just calling `self` or `parent`, but for reflection purposes it is.

The following should work, but doesn't:

----------
import std.typecons : AutoImplement;

interface A
{
	void overloaded(int);
	void overloaded(float);
}

enum tpl(C, alias fun) = q{
	import std.traits : Parameters;
	static assert(is(Parameters!self == typeof(args)));
};

alias Impl = AutoImplement!(A, tpl);
----------

Output:

$ dmd -o- -c autoimplement.d
/Library/D/dmd/src/phobos/std/typecons.d-mixin-4495(4510): Error: static assert:  is((int) == (float)) is false
autoimplement.d(14):        instantiated from here: AutoImplement!(A, tpl, isAbstractFunction)

[dlangBugzillaToGithub]

dlang-bot commented on 2019-03-05T06:00:37Z

@thaven updated dlang/phobos pull request #6876 "Also expose 'parent' when it's abstract" mentioning this issue:

- Temporarily comment out overload in test to work around Issue 19715

https://github.com/dlang/phobos/pull/6876

[dlangBugzillaToGithub]

dlang-bot commented on 2022-01-18T03:54:11Z

dlang/phobos pull request #6876 "Also expose 'parent' when it's abstract" was merged into master:

- 47291bb0e6f3169737139a92b33887c7e588dd8f by thaven:
  Temporarily comment out overload in test to work around Issue 19715

https://github.com/dlang/phobos/pull/6876