hermit: Haskell Equational Reasoning Model-to-Implementation Tunnel

[ bsd3, formal-methods, language, library, optimization, program, refactoring, reflection, transformation ] [ Propose Tags ]

HERMIT uses Haskell to express semi-formal models, efficient implementations, and provide a bridging DSL to describe via stepwise refinement the connection between these models and implementations. The key transformation in the bridging DSL is the worker/wrapper transformation.

This is a pre-alpha `please give feedback' release. Shortcomings/gotchas include:

Examples can be found in the examples sub-directory.

$ cd examples/reverse

Example of running a script.

$ hermit Reverse.hs Reverse.hss resume
[starting HERMIT v0.1.1.0 on Reverse.hs]
% ghc Reverse.hs -fforce-recomp -O2 -dcore-lint -fsimple-list-literals -fplugin=HERMIT -fplugin-opt=HERMIT:main:Main: -fplugin-opt=HERMIT:main:Main:resume
[1 of 2] Compiling HList            ( HList.hs, HList.o )
Loading package ghc-prim ... linking ... done.
...
Loading package hermit-0.1.1.0 ... linking ... done.
[2 of 2] Compiling Main             ( Reverse.hs, Reverse.o )
Linking Reverse ...
$ ./Reverse
....

Example of interactive use.

$ hermit Reverse.hs
[starting HERMIT v0.1.1.0 on Reverse.hs]
% ghc Reverse.hs -fforce-recomp -O2 -dcore-lint -fsimple-list-literals -fplugin=HERMIT -fplugin-opt=HERMIT:main:Main:
[1 of 2] Compiling HList            ( HList.hs, HList.o )
Loading package ghc-prim ... linking ... done.
...
Loading package hermit-0.1.1.0 ... linking ... done.
[2 of 2] Compiling Main             ( Reverse.hs, Reverse.o )
module main:Main where
  rev ∷ ∀ a . [] a -> [] a
  unwrap ∷ ∀ a . ([] a -> [] a) -> [] a -> H a
  wrap ∷ ∀ a . ([] a -> H a) -> [] a -> [] a
  main ∷ IO ()
  main ∷ IO ()
hermit<0>
...

To resume compile, use resume.

...
hermit<0> resume
hermit<0> Linking Reverse ...
$
Versions 0.0, 0.1.1.0, 0.1.1.1, 0.1.2.0, 0.1.4.0, 0.1.6.0, 0.1.8.0, 0.2.0.0, 0.3.0.0, 0.3.1.0, 0.3.2.0, 0.4.0.0, 0.5.0.0, 0.6.0.0, 0.7.0.0, 0.7.1.0, 1.0.0.0, 1.0.1
Dependencies aeson (>=0.6.0.0), ansi-terminal (>=0.5.5), base (==4.*), containers (>=0.4.2.1), data-default (>=0.4), ghc (>=7.4), haskeline (>=0.6.4.7 && <0.7), kure (>=2.2.5 && <3.0), marked-pretty (>=0.1), mtl (>=2.0.1.0), process, stm (>=2.2.0.1), template-haskell (>=2.7.0.0), text (>=0.11.1.13) [details]
License BSD-3-Clause
Author Andrew Farmer, Andy Gill, Ed Komp, Neil Sculthorpe
Maintainer Andy Gill <andygill@ku.edu>
Revised Revision 1 made by AndrewFarmer at Sat Sep 19 23:04:21 UTC 2015
Category Language, Formal Methods, Optimization, Transformation, Refactoring, Reflection
Uploaded by AndrewFarmer at Sat Aug 25 02:22:14 UTC 2012
Distributions NixOS:1.0.1
Executables hermit
Downloads 9645 total (14 in the last 30 days)
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Status Docs uploaded by user
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