Type instantiation is excessively deep and possibly infinite.

[jasonkuhrt]

Describe the bug

There is an issue in the expectTypeOf type utility. This may be an upstream issue. If so sorry in advance.

Notice I rolled my own type equality check that passes.

Reproduction

Available at this commit jasonkuhrt/graffle@eeb4ba4 (#1107) at /src/layers/4_ResultSet/types.test-d.ts

System Info

System:
    OS: macOS 15.0
    CPU: (8) arm64 Apple M1 Pro
    Memory: 633.48 MB / 32.00 GB
    Shell: 3.5.0 - /opt/homebrew/bin/fish
  Binaries:
    Node: 22.7.0 - ~/Library/pnpm/node
    npm: 10.8.2 - ~/Library/pnpm/npm
    pnpm: 9.10.0 - /opt/homebrew/bin/pnpm
  Browsers:
    Brave Browser: 114.1.52.122
    Chrome: 128.0.6613.139
    Safari: 18.0
  npmPackages:
    vitest: ^2.1.1 => 2.1.1

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[jasonkuhrt]

Right, maybe its an issue of https://github.com/mmkal/expect-type.

[aryaemami59]

@jasonkuhrt Do you happen to have an actual reproduction? I can't seem to replicate it.

[jasonkuhrt]

Hey @aryaemami59, once I wrap this PR jasonkuhrt/graffle#1107 (few days) I'll try to get a more minimal repro going. Thanks for your work on this!