File ghc-effect-handlers.spec of Package ghc-effect-handlers

# spec file for package ghc-effect-handlers
# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.

# Please submit bugfixes or comments via

%global pkg_name effect-handlers
%bcond_with tests
Name:           ghc-%{pkg_name}
Release:        0
Summary:        A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers
License:        MIT
Group:          System/Libraries
Url:  {pkg_name}
BuildRequires:  ghc-Cabal-devel
# Begin cabal-rpm deps:
BuildRequires:  ghc-free-devel
BuildRequires:  ghc-kan-extensions-devel
BuildRequires:  ghc-mtl-devel
BuildRequires:  ghc-rpm-macros
BuildRoot:      %{_tmppath}/%{name}-%{version}-build
%if %{with tests}
BuildRequires:  ghc-HUnit-devel
BuildRequires:  ghc-QuickCheck-devel
BuildRequires:  ghc-hspec-devel
BuildRequires:  ghc-hspec-discover-devel
# End cabal-rpm deps

This is an extensible effects library for Haskell taking inspiration from the
Eff language <>.

See these papers for the ideas and theory behind the library:

- O. Kammar et al: Handlers in Action!
<> - A.
Bauer, M. Pretnar: Programming with Algebraic Effects and Handlers
<> - O Kiselyov, A Sabry, C Swords: Extensible
Effects <>

Implementation wise it's most close to 'extensible-effects'
<> (also see the
Extensible Effects paper) but it implements deep handlers instead of shallow.

' import Control.Effects.Cont.Eff import Control.Effects.Cont.Reader import

program = do &#32;&#32;v <- ask &#32;&#32;if v < 15 &#32;&#32;then throw $ show
v &#32;&#32;else return (v+1)

run n = runPure . handle exceptionHandler . handle (readerHandler n)

res :: Integer -> Either String Integer res n = run n program '.

%package devel
Summary:        Haskell %{pkg_name} library development files
Group:          Development/Libraries/Other
Requires:       %{name} = %{version}-%{release}
Requires:       ghc-compiler = %{ghc_version}
Requires(post): ghc-compiler = %{ghc_version}
Requires(postun): ghc-compiler = %{ghc_version}

%description devel
This package provides the Haskell %{pkg_name} library development

%setup -q -n %{pkg_name}-%{version}



%if %{with tests}
%{cabal} test

%post devel

%postun devel

%files -f %{name}.files

%files devel -f %{name}-devel.files