Changelog for uhc-light-1.1.9.4

Changelog

[compatibility] with ghc 8.0.1
[type system] Ongoing work for CHR based type system
[uhc-util] Ongoing sync with uhc-util
[compiler driver] check for writeability of directory is now on dest dir, not src dir
[pragmas] bangpatterns pragma turned off by default
[pragmas] bangpatterns pragma propagation to parser fixed
[options] fixed -O0 option

[libs] Updated version lowerbound for hashable and fclabels, via uhc-util
[chr] Prep for new CHR solver, via uhc-util
[doc] Cleanup: doc moved to separate repo https://github.com/atzedijkstra/uhc-doc
[ruler] Cleanup: ruler based impl part and examples moved to separate repo https://github.com/atzedijkstra/ruler-uhc-examples
[experiments] Cleanup: unused/obsolete code/experiments moved to separate repo https://github.com/atzedijkstra/uhc-obsolete
[tycore] Cleanup: TyCore stuff removed
[impredicativity] Cleanup: variant 4_2 (impredicativity 2 pass analysis) removed
[annotations] Cleanup: variant 7_2 (annotations, strictness) mostly removed, utilities for html pretty printing left in, bit of AST as well
[whole prog analysis] Cleanup: removal of HPT analysis, Silly, Cil, last version still having this code tagged with 'lastversionwith-wholeproggrin'
[core] Pretty printing/dump of Core AST (for debugging purposes), accessible via --coreopt=dump-ast
[uhc-util] Move of LexScope encoding via RLList to separate module in uhc-util
[corerun] Additional API calls
[grin] No longer .grin files generated, any whole grin progr stuff disabled (to be removed)
[serialize] Serialization instances now mostly generically defined

[corerun] CoreRun specific options via --corerunopt=...
[corerun] Some cleanup for use in course http://foswiki.cs.uu.nl/foswiki/Cco/WebHome
[dependencies] Removal of dependency on Data.Data/syb
[chr] CHR machinery moved to uhc-util
[ast dump] Framework for debugging AST: --ehopt=dump-ast & --debug-traceon=... combi allow selectively looking into AST + info

[guarantees] This is a pre-release as far as below extensions is concerned.
[backend] Core/CoreRun backend now better supported (e.g. via uhcl/uhcr) to allow CoreRun modules to be run, without requiring -Operwholecore (Core whole program linking). For a "hello world" only...
[extension] Local instances have been resurrected, paper submitted to flops2016 describes what can be done. Still bugs and design issues to be sorted out.
[extension] Generic deriving now by default off, can be turned on via deriving Generic addition to datatype def.
[compatibility] Compatibility with ghc <7.10 versions no longer guaranteed.
[name analysis] Name analysis & dependency analysis more fine-grained, required by local instances.

[compatibility] ghc 7.10 compat, name clash of 'Alt' apparently now globally visible

[compatibility] ghc 7.10 compatibility, indirectly via uhc-util
[build] Initial work on sandbox builds, to be enabled by --enable-sandbox flag to ./configure. Does not work yet.
[build] Strict version equality dependency on uhc-util, uulib
[core api] Core api no longer needs ANormal patch (#50).

[build] Internal compilerdriver refactorization and start of rewrite with new compilerdriver based on a simple incremental DSL for describing compilation.

[build] Intro of dependency on template haskell due to start of use of a lens library (fclabels, via uhc-util)
[git] Tagging of versions, change in changelog maintenance (is not created from edit version, prepending version nr etc)

[compiler driver] Refactoring: top level compiler driver functions now are typed as monad transformer, requiring adapted uhc-utils>=0.1.5.0.
[corerun] More primitives implemented.
[corerun] CoreRun files can be serialized, now also generated by default (enabling direct running these).

[core] Core prettyprinting/parsing changed such that bindings (in a let) and alternatives (of a case) now are semicolon terminated instead of curly embraced semicolon separated; should improve readability.
[build] Separate target in makefiles for 'ehcr', with trace option.
[corerun, api] CoreRun API extended to be usable by CCO lab exercise.

[corerun, api] CoreRun has its own API.
[core, api] Interface to Core main changed in that the state parameter is already passed explicitly (not implicitly added during later compiler pipeline stages), influences the api.
[corerun] Cleaned up CoreRun AST, spec of the operational semantics under development (separate outside src/doc tree).
[feature] Separate executable 'uhcr' as part of uhc-light for running CoreRun file .rcr as pretty printed by dump, a temporary solution.
[corerun] Parser for CoreRun.

[core] Detection of yes/no ANormal form of parsed Core and corresponding no/yes transformation (not tested for cases where it matters; unknown whether this is good enough for codegen to work properly)
[cleanup] Removal of src/ruler from source tree (has its own repo)
[api] Added better documentation and one small example program
[api] Fix issue #36 (wrong runtime behaviour and/or crashes)

[core] Core allows exports, can mix .hs and .bcr/.tcr files (tested rudimentary only).
[api] Core.API extended.