raiseAssert generates a redefinition of 'result`gensym646'?

[richard-ramos]

Nim Version

2.0.17

Description

In this repository/pr: vacp2p/nim-libp2p#1797 lines that look like

doAssert false, "some message"

were replaced by

raiseAssert "some message"

When doing this, a compilation error appears when executing nimble test

Current Output

/home/runner/work/nim-libp2p/nim-libp2p/libp2p/discovery/rendezvousinterface.nim(42, 21) template/generic instantiation of `request` from here
/home/runner/work/nim-libp2p/nim-libp2p/libp2p/protocols/rendezvous/rendezvous.nim(461, 37) template/generic instantiation of `setResult` from here
/home/runner/work/nim-libp2p/nim-libp2p/nim/lib/pure/collections/sequtils.nim(1025, 13) Error: redefinition of 'result`gensym646'; previous declaration here: /home/runner/work/nim-libp2p/nim-libp2p/nim/lib/pure/collections/sequtils.nim(863, 11)
stack trace: (most recent call last)

Expected Output

libp2p/protocols/rendezvous/rendezvous.nim should have compiled succesfully

Known Workarounds

No response

Additional Information

This error does not appear when using 2.0.16, or newer like 2.2.4.

[narimiran]

Couple remarks:

1. This seems to be fixed on devel and version-2-2.
2. You didn't provide a self-contained example that showcases the error and which can be used as a test case.
3. There were no changes in sequtils.nim between 2.0.16 and the latest commit on the version-2-0 branch (v2.0.17).
4. Based on the line numbers, my guess it would be that your code contains stuff that uses both mapIt and toSeq — see if you can come up with a small example that reproduces this.