RELEASE-v0.15.0.0.md

New in MicroHs 0.15.0.0

Features

• New language extensions
  • EmptyDataDeriving
  • NondecreasingIndentation
  • MonoLocalBinds removed
  • MonomorphismRestriction
• Evaluation stats in interactive system: set +s
• STM (implementation from David Sabel)
• GHC compatible exception handling (mask etc.)
• System.Mem.Weak
• Foreign.StablePtr
• out.comb can be generated compressed and base64 encoded
• Improved Data.ByteString
• FFI wrapper for eval.c
• New BFILE stuff: file descriptor, buffering, base64 coding
• Double and Float are now different types
• Int64/Word64 on 32 bit platforms
• Instruction counts on supported platforms (MacOS&M4, Linux&x86_64)
• Proper array package
• Unboxed tuple and sum syntax accepted (but no unboxing)
• Deriving Data, Foldable, Functor, Ix, Read, Traversable

Performance

• Evaluation in the interactive system is much faster

FFI

• foreign export ccall implemented
• foreign import javascript implemented
• JavaScript version of the MicroHs runtime is part of the distribution: generated/mhseval.js

Bug fixes

• Lots

Packages

• Many more packages compile, e.g., QuickCheck, filepath
• See https://docs.google.com/spreadsheets/d/1e0dbUg5uuFKNwgMpwtBnYRldPCYYyBqYfsbyhEjf5bU/edit?usp=sharing
• Use make -f Makefile.packages to install some of them

Contributors

• Ben Clifford benc@hawaga.org.uk
• Heinrich Apfelmus apfelmus@quantentunnel.de
• Henning Thielemann git@henning-thielemann.de
• konsumlamm konsumlamm@gmail.com
• Lorenzo Tabacchini lortabac@gmx.com
• Thomas Mahler thma32@web.de
• Thomas van Maaren 74723259+tvmaaren@users.noreply.github.com
• Tristan de Cacqueray tristan@midirus.com