Bug 14947 – std.traits: ParameterIdentifierTuple on an 'interface' not working

for dmd2.068, linux 64bit: dmd -oftest test.d (string, uint, bool) tuple("a", "b", "c") (string, uint, bool) tuple("", "", "") second tuple printout should be the same as the first one. ---------------------------------------- with test.d: import std.traits; interface IFoo { ulong foo_me(string a, uint b, bool c); } class myFoo:IFoo{ ulong foo_me(string a, uint b, bool c){ return 42; } } void main() { auto tmp_foo = new myFoo; alias ParameterTypeTuple!(tmp_foo.foo_me) tmpfooTypes; pragma(msg,tmpfooTypes); alias ParameterIdentifierTuple!(tmp_foo.foo_me) tmpfooNames; pragma(msg,tmpfooNames); foreach ( method; __traits(allMembers, IFoo)) { alias MemberFunctionsTuple!(IFoo, method) funcs; alias typeof(funcs[0]) func; alias ReturnType!func return_type; alias ParameterTypeTuple!func ParameterTypes; alias ParameterIdentifierTuple!func ParameterNames; pragma(msg,ParameterTypes); pragma(msg,ParameterNames); } }

(In reply to Vladimir Panteleev from comment #1) > https://github.com/D-Programming-Language/phobos/pull/3620 Apparently that was due a typo, and that PR is for another bug.

If in the example this line: alias typeof(funcs[0]) func; ...is replaced with this line: alias funcs[0] func; then it works fine. If you think that's not the correct solution please reopen the issue.