String module spannification - #20358

Draft

jwosty wants to merge 9 commits into

dotnet:mainfrom

jwosty:string-module-spannification

Commits on Aug 28, 2026

Optimize String.map (netstandard 2.1+) - eliminate intermediate allocations via String.Create + Span
jwosty
committed
cea72d9
Apply the same optimization to String.mapi
jwosty
committed
c8eb6b9
Optimize `String.filter` (netstandard 2.1+) - reduce allocations using stack allocation when possible
jwosty
committed
aa195d9
Refactor
jwosty
committed
f3a679d
Add a comment back
jwosty
committed
d902748
Optimize `String.replicate` (netstandard 2.1+) - reduce allocations with Span magic
jwosty
committed
d4c3528
Fix a nowarn that breaks fantomas
jwosty
committed
6c74581
Run fantomas on string.fs
jwosty
committed
f555ee6
Correct typo
jwosty
committed
5aa9391