Bug 20039 – ICE from double template instantiation with getMember of overload of class and template function

Consider the following code: void foo()() { } class bar { } alias bug = foo; alias bug = bar; template Identity(T...) { } alias member1 = Identity!(__traits(getMember, mixin(__MODULE__), "bug")); alias member2 = Identity!(__traits(getMember, mixin(__MODULE__), "bug")); With this, DMD crashes, because it cannot determine the type of "bug" to see if the template parameters are equal. Note that with this variation, a different crash ensues: void main() { alias member1 = Identity!(.bug); alias member2 = Identity!(.bug); }

I can't get the code to ICE on 2.087.0 on Windows, nor on any DMD version on run.dlang.org (neither the first crash or the second). Is your code example missing some pieces?

@FeepingCreature created dlang/dmd pull request #10159 "Fix issue 20039: when checking for an existing template instance, tolerate expressions without types." fixing this issue: - Fix issue 20039: when checking for an existing template instance, tolerate expressions without types. https://github.com/dlang/dmd/pull/10159

Sorry, I'm wrong - it does segfault on run.dlang.io, but not on 2.087.0 on Windows.

dlang/dmd pull request #10159 "Fix issue 20039: when checking for an existing template instance, tolerate expressions without types." was merged into stable: - fca2b0256acc12c8c273c264c10798b5e7b81bb1 by Mathis Beer: Fix issue 20039: when checking for an existing template instance, tolerate expressions without types. https://github.com/dlang/dmd/pull/10159