warning: the package uses the Julia-internal implementation detail `TwicePrecision`

[nsajko]

EltypeExtensions.jl/src/EltypeExtensions.jl

Line 3 in 5414ec6

import Base: convert, TwicePrecision

help?> Base.TwicePrecision
  │ Warning
  │
  │  The following bindings may be internal; they may change or
  │  be removed in future versions:
  │
  │    •  Base.TwicePrecision

  TwicePrecision{T}(hi::T, lo::T)
  TwicePrecision{T}((num, denom))

  A number with twice the precision of T, e.g., quad-precision if T =
  Float64.

  │ Warning
  │
  │  TwicePrecision is an internal type used to increase the
  │  precision of floating-point ranges, and not intended for
  │  external use. If you encounter them in real code, the most
  │  likely explanation is that you are directly accessing the
  │  fields of a range. Use the function interface instead,
  │  step(r) rather than r.step

[putianyi889]

Can you explain when this implementation can be breaking? It is required to convert the type parameters of StepRangeLen.

[nsajko]

At any, even minor, release of Julia. At any commit in Julia, really. Technically you're supposed to pin specific Julia versions in your Project.toml if you must trespass on the internals.

[putianyi889]

I'm not gonna update Project.toml on every Julia update. However it could be possible to trigger GitHub Actions to do the tests on Julia update. I'll leave this issue open until I (or someone) figure out how to do that.