FixFunctionArgument.jl: Fix a function positional argument to a callable. Stand-in replacement for Base.Fix

[nsajko]

Suboptimal design in Base.Fix, also applying to Base.Fix1 and Base.Fix2, causes things like Base.Fix1(convert, Bool) to have a greater than zero representation in memory, because Bool isa Type. Fixing this in Base would be arguably breaking, so here’s a new package providing a stand-in replacement to Base.Fix, Base.Fix1, Base.Fix2. The design is meant to be a straight improvement over Base.Fix, without unnecessary changes.

• GitHub - JuliaFunctional/FixFunctionArgument.jl: Fix a function positional argument to a callable. Stand-in replacement for `Base.Fix`.

The package has now entered the three-day waiting period, after which it can be registered.

Here’s also the relevant issue ticket on Github:

• suboptimal design of `Fix`, `ComposedFunction`, `Returns`, `Splat`: `sizeof(Base.Fix1(convert, Float32)) > 0` · Issue #59619 · JuliaLang/julia · GitHub

Update:

• I realized the same issue as with Base.Fix is also present with Returns, ComposedFunction and Base.Splat.

• I made a PR which attempts to fix the issues in Base:

  • improve design of `Fix`, `ComposedFunction`, `Returns` for some edge cases by nsajko · Pull Request #59623 · JuliaLang/julia · GitHub

• The registration of the package is on hold until the PR is resolved. Furthermore, if the PR does not get accepted, the design of the package(s) may be adjusted, as I came to some realizations in the mean time.