streamly/streamly.cabal

name:               streamly
version:            0.6.1
synopsis:           Beautiful Streaming, Concurrent and Reactive Composition
description:
  Streamly, short for streaming concurrently, provides monadic streams, with a
  simple API, almost identical to standard lists, and an in-built support for
  concurrency.  Streams can be generated, merged, chained, mapped, zipped, and
  consumed concurrently – providing a generalized high level programming
  framework unifying streaming and concurrency. Controlled concurrency allows
  even infinite streams to be evaluated concurrently.  Concurrency is auto
  scaled based on feedback from the stream consumer.  Programmer does not
  have to be aware of threads, locking or synchronization to write scalable
  concurrent programs.
  .
  In addition to the basic streaming functionality provided by
  streaming libraries like
  <https://hackage.haskell.org/package/streaming streaming>,
  <https://hackage.haskell.org/package/pipes pipes>, and
  <https://hackage.haskell.org/package/conduit conduit> streamly provides
  advanced stream composition including various ways of appending, merging,
  zipping, splitting, grouping, distributing, partitioning and unzipping of
  streams with true streaming and with concurrency. Streamly subsumes the
  functionality of list transformer libraries like @pipes@ or
  <https://hackage.haskell.org/package/list-t list-t> and also the logic
  programming library <https://hackage.haskell.org/package/logict logict>. On
  the concurrency side, it subsumes the basic concurrency functionality
  provided by the <https://hackage.haskell.org/package/async async> package and
  provides much more powerful high level concurrent streaming composition.
  Because it supports streaming with concurrency we can write FRP applications
  similar in concept to <https://hackage.haskell.org/package/Yampa Yampa> or
  <https://hackage.haskell.org/package/reflex reflex>.
  .
  Streamly focuses on practical engineering with high performance. One can
  expect performance competitive to C from well written streamly programs.
  High performance streaming eliminates the need for string and text
  libraries like
  <https://hackage.haskell.org/package/bytestring bytestring>,
  <https://hackage.haskell.org/package/text text> and their lazy and strict
  flavors, and all the confusion arising from those. The only basic types are
  arrays for storage and streams for processing. Strings and text are simply
  streams of 'Char' as they should be. Even Haskell lists can be replaced by
  pure streams. Arrays provided by streamly have performance at par with or
  better than the vector library.
  .
  Streamly interoperates with popular streaming libraries, see
  the interoperation section in "Streamly.Tutorial".
  .
  Why use streamly?
  .
  * /Simplicity/: Simple list like streaming API, if you know how to use lists
    then you know how to use streamly. This library is built with simplicity
    and ease of use as a primary design goal.
  * /Concurrency/: Simple, powerful, and scalable concurrency.  Concurrency is
    built-in, and not intrusive, concurrent programs are written exactly the
    same way as non-concurrent ones.
  * /Generality/: Unifies functionality provided by several disparate packages
    (streaming, concurrency, list transformer, logic programming, reactive
    programming) in a concise API.
  * /Performance/: Streamly is designed for high performance.
    It employs stream fusion optimizations for best possible performance.
    Serial peformance is equivalent to the venerable `vector` library in most
    cases and even better in some cases. Concurrent performance is unbeatable.
    See
    <https://github.com/composewell/streaming-benchmarks streaming-benchmarks>
    for a comparison of popular streaming libraries on micro-benchmarks.
  .
  Where to find more information:
  .
  * /Quick Overview/: <src/README.md README file> in the package
  * /Detailed Tutorial/: "Streamly.Tutorial" module in the haddock documentation
  * /Reference Documentation/: Haddock documentation for the respective modules
  * /Examples/: <src/examples examples directory> in the package
  * /Guides/: <src/docs docs directory> in the package, for documentation on
    advanced topics, limitations, semantics of the library or on specific use
    cases.
  * <https://github.com/composewell/streaming-benchmarks Streaming Benchmarks>
  * <https://github.com/composewell/concurrency-benchmarks Concurrency Benchmarks>

homepage:            https://github.com/composewell/streamly
bug-reports:         https://github.com/composewell/streamly/issues
license:             BSD3
license-file:        LICENSE
tested-with:         GHC==7.10.3
                   , GHC==8.0.2
                   , GHC==8.4.4
                   , GHC==8.6.4
author:              Harendra Kumar
maintainer:          harendra.kumar@gmail.com
copyright:           2017 Harendra Kumar
category:            Control, Concurrency, Streaming, Reactivity
stability:           Experimental
build-type:          Configure
cabal-version:       >= 1.10

extra-source-files:
    Changelog.md
    README.md
    docs/streamly-vs-async.md
    docs/transformers.md
    bench.sh
    stack-7.10.yaml
    stack-8.0.yaml
    stack.yaml
    src/Streamly/Streams/Instances.hs
    src/Streamly/Streams/inline.hs
    configure.ac
    configure
    src/Streamly/Time/config.h.in

extra-tmp-files:
    config.log
    config.status
    autom4te.cache
    src/Streamly/Time/config.h

source-repository head
    type: git
    location: https://github.com/composewell/streamly

flag dev
  description: Development build
  manual: True
  default: False

flag has-llvm
  description: Use llvm backend for better performance
  manual: True
  default: False

flag no-charts
  description: Disable chart generation
  manual: True
  default: False

flag no-fusion
  description: Disable rewrite rules
  manual: True
  default: False

flag streamk
  description: Use CPS style streams when possible
  manual: True
  default: False

flag examples
  description: Build including examples
  manual: True
  default: False

flag examples-sdl
  description: Build including SDL examples
  manual: True
  default: False

-------------------------------------------------------------------------------
-- Library
-------------------------------------------------------------------------------

library
    js-sources: jsbits/clock.js
    include-dirs:     src/Streamly/Time
                    , src/Streamly/Streams
    if os(windows)
      c-sources:     src/Streamly/Time/Windows.c
    if os(darwin)
      c-sources:     src/Streamly/Time/Darwin.c
    hs-source-dirs:    src
    other-modules:     Streamly.Atomics
                     , Streamly.SVar
                     , Streamly.Strict
                     , Streamly.Enumeration

                    -- Memory storage
                     , Streamly.Mem.Array.Types
                     , Streamly.Mem.Ring

                    -- Base streams
                     , Streamly.Streams.StreamK.Type
                     , Streamly.Streams.StreamK
                     , Streamly.Streams.StreamD.Type
                     , Streamly.Streams.StreamD
                     , Streamly.Streams.Prelude

                    -- Higher level streams
                     , Streamly.Streams.SVar
                     , Streamly.Streams.Serial
                     , Streamly.Streams.Async
                     , Streamly.Streams.Parallel
                     , Streamly.Streams.Ahead
                     , Streamly.Streams.Zip
                     , Streamly.Streams.Combinators

                    -- Pure streams
                     , Streamly.List
                     , Streamly.String

                    -- Folds
                     , Streamly.Fold.Types
                     , Streamly.Sink.Types
                     , Streamly.Sink

    exposed-modules:   Streamly.Prelude
                     , Streamly.Time
                     , Streamly
                     , Streamly.Fold

                     , Streamly.Mem.Array
                     , Streamly.FileSystem.File

                    -- Time
                     , Streamly.Time.Units
                     , Streamly.Time.Clock

                     , Streamly.Tutorial
                     , Streamly.Internal

    default-language: Haskell2010
    ghc-options:      -Wall -fspec-constr-recursive=10

    if flag(has-llvm)
      ghc-options: -fllvm

    if flag(streamk)
      cpp-options:    -DUSE_STREAMK_ONLY

    if flag(no-fusion)
      cpp-options:    -DDISABLE_FUSION

    if flag(dev)
      cpp-options:    -DDEVBUILD
      ghc-options:    -Wmissed-specialisations
                      -Wall-missed-specialisations
                      -fno-ignore-asserts
    if impl(ghc >= 8.0)
      ghc-options:    -Wcompat
                      -Wunrecognised-warning-flags
                      -Widentities
                      -Wincomplete-record-updates
                      -Wincomplete-uni-patterns
                      -Wredundant-constraints
                      -Wnoncanonical-monad-instances
                      -Wnoncanonical-monadfail-instances

    build-depends:     base              >= 4.8   &&  < 5
                     , ghc-prim          >= 0.2   && < 0.6
                     , deepseq           >= 1.4.3 && < 1.5
                     , containers        >= 0.5   && < 0.7
                     , heaps             >= 0.3   && < 0.4

                    -- concurrency
                     , atomic-primops    >= 0.8   && < 0.9
                     , lockfree-queue    >= 0.2.3 && < 0.3

                    -- transfomers
                     , exceptions        >= 0.8   && < 0.11
                     , monad-control     >= 1.0   && < 2
                     , mtl               >= 2.2   && < 3
                     , transformers      >= 0.4   && < 0.6
                     , transformers-base >= 0.4   && < 0.5
                     , random

  if impl(ghc < 8.0)
    build-depends:
        semigroups    >= 0.18   && < 0.19

-------------------------------------------------------------------------------
-- Test suites
-------------------------------------------------------------------------------

-- Compilation for coverage builds on CI machines takes too long without -O0

test-suite test
  type: exitcode-stdio-1.0
  main-is: Main.hs
  js-sources: jsbits/clock.js
  hs-source-dirs: test
  ghc-options:  -O0 -Wall -threaded -with-rtsopts=-N -fno-ignore-asserts
  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base              >= 4.8   && < 5
    , hspec             >= 2.0   && < 3
    , containers        >= 0.5   && < 0.7
    , transformers      >= 0.4   && < 0.6
    , mtl               >= 2.2   && < 3
    , exceptions        >= 0.8   && < 0.11
  default-language: Haskell2010

-- test-suite pure-streams-base
--   type: exitcode-stdio-1.0
--   main-is: PureStreams.hs
--   hs-source-dirs: test
--   ghc-options:  -O0 -Wall -threaded -with-rtsopts=-N -fno-ignore-asserts
--   if flag(dev)
--     cpp-options:    -DDEVBUILD
--     ghc-options:    -Wmissed-specialisations
--                     -Wall-missed-specialisations
--   if impl(ghc >= 8.0)
--     ghc-options:    -Wcompat
--                     -Wunrecognised-warning-flags
--                     -Widentities
--                     -Wincomplete-record-updates
--                     -Wincomplete-uni-patterns
--                     -Wredundant-constraints
--                     -Wnoncanonical-monad-instances
--                     -Wnoncanonical-monadfail-instances
--   build-depends:
--       streamly
--     , base              >= 4.8   && < 5
--     , hspec             >= 2.0   && < 3
--   default-language: Haskell2010
-- 
-- test-suite pure-streams-streamly
--   type: exitcode-stdio-1.0
--   main-is: PureStreams.hs
--   hs-source-dirs: test
--   cpp-options:  -DUSE_STREAMLY_LIST
--   ghc-options:  -O0 -Wall -threaded -with-rtsopts=-N -fno-ignore-asserts
--   if flag(dev)
--     cpp-options:    -DDEVBUILD
--     ghc-options:    -Wmissed-specialisations
--                     -Wall-missed-specialisations
--   if impl(ghc >= 8.0)
--     ghc-options:    -Wcompat
--                     -Wunrecognised-warning-flags
--                     -Widentities
--                     -Wincomplete-record-updates
--                     -Wincomplete-uni-patterns
--                     -Wredundant-constraints
--                     -Wnoncanonical-monad-instances
--                     -Wnoncanonical-monadfail-instances
--   build-depends:
--       streamly
--     , base              >= 4.8   && < 5
--     , hspec             >= 2.0   && < 3
--   default-language: Haskell2010

test-suite properties
  type: exitcode-stdio-1.0
  main-is: Prop.hs
  js-sources: jsbits/clock.js
  hs-source-dirs: test
  ghc-options:  -fno-ignore-asserts -Wall -O0 -threaded -with-rtsopts=-N
  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base              >= 4.8   && < 5
    , QuickCheck        >= 2.10  && < 2.14
    , hspec             >= 2.0   && < 3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6
  default-language: Haskell2010

test-suite array-test
  type: exitcode-stdio-1.0
  main-is: Arrays.hs
  js-sources: jsbits/clock.js
  hs-source-dirs: test
  ghc-options:  -fno-ignore-asserts -Wall -O0 -threaded -with-rtsopts=-N
  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base              >= 4.8   && < 5
    , QuickCheck        >= 2.10  && < 2.14
    , hspec             >= 2.0   && < 3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6
  default-language: Haskell2010

test-suite maxrate
  type: exitcode-stdio-1.0
  default-language: Haskell2010
  main-is: MaxRate.hs
  js-sources: jsbits/clock.js
  hs-source-dirs:  test
  ghc-options:  -fno-ignore-asserts -O2 -Wall -threaded -with-rtsopts=-N
  if flag(dev)
    buildable: True
    build-Depends:
          streamly
        , base   >= 4.8   && < 5
        , clock  >= 0.7.1 && < 0.8
        , hspec  >= 2.0   && < 3
        , random >= 1.0.0 && < 2
  else
    buildable: False

test-suite loops
  type: exitcode-stdio-1.0
  default-language: Haskell2010
  main-is: loops.hs
  hs-source-dirs:  test
  ghc-options:  -fno-ignore-asserts -O2 -Wall -threaded -with-rtsopts=-N
  build-Depends:
      streamly
    , base >= 4.8   && < 5

test-suite nested-loops
  type: exitcode-stdio-1.0
  default-language: Haskell2010
  main-is: nested-loops.hs
  hs-source-dirs:  test
  ghc-options:  -fno-ignore-asserts -O2 -Wall -threaded -with-rtsopts=-N
  build-Depends:
      streamly
    , base   >= 4.8   && < 5
    , random >= 1.0.0 && < 2

test-suite parallel-loops
  type: exitcode-stdio-1.0
  default-language: Haskell2010
  main-is: parallel-loops.hs
  hs-source-dirs:  test
  ghc-options:  -fno-ignore-asserts -O2 -Wall -threaded -with-rtsopts=-N
  build-Depends:
      streamly
    , base   >= 4.8   && < 5
    , random >= 1.0.0 && < 2

-------------------------------------------------------------------------------
-- Benchmarks
-------------------------------------------------------------------------------

benchmark linear
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: Linear.hs
  other-modules: LinearOps
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -with-rtsopts "-T" -fspec-constr-recursive=10

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , deepseq             >= 1.4.3 && < 1.5
    , random              >= 1.0   && < 2.0
    , gauge               >= 0.2.4 && < 0.3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6

benchmark linear-async
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: LinearAsync.hs
  other-modules: LinearOps
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -fspec-constr-recursive=10 -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  cpp-options: -DLINEAR_ASYNC
  if flag(dev)
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , deepseq             >= 1.4.3 && < 1.5
    , random              >= 1.0   && < 2.0
    , gauge               >= 0.2.4 && < 0.3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6

benchmark linear-rate
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: LinearRate.hs
  other-modules: LinearOps
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -fspec-constr-recursive=10 -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , deepseq             >= 1.4.3 && < 1.5
    , random              >= 1.0   && < 2.0
    , gauge               >= 0.2.4 && < 0.3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6

benchmark nested
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: Nested.hs
  other-modules: NestedOps
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -fspec-constr-recursive=10 -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , deepseq             >= 1.4.3 && < 1.5
    , random              >= 1.0   && < 2.0
    , gauge               >= 0.2.4 && < 0.3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6

benchmark array
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: Array.hs
  other-modules: ArrayOps
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -with-rtsopts "-T" -fspec-constr-recursive=10

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , deepseq             >= 1.4.3 && < 1.5
    , random              >= 1.0   && < 2.0
    , gauge               >= 0.2.4 && < 0.3
  if impl(ghc < 8.0)
    build-depends:
        transformers  >= 0.4 && < 0.6

benchmark fileio
  type: exitcode-stdio-1.0
  hs-source-dirs: benchmark
  main-is: FileIO.hs
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -fspec-constr-recursive=10 -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    cpp-options:    -DDEVBUILD
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances
  build-depends:
      streamly
    , base                >= 4.8   && < 5
    , gauge               >= 0.2.4 && < 0.3
    , typed-process       >= 0.2.3 && < 0.3
    , deepseq             >= 1.4.3 && < 1.5

-------------------------------------------------------------------------------
-- Internal benchmarks for unexposed modules
-------------------------------------------------------------------------------

-- We have to copy the streamly library modules here because there is no
-- way to use unexposed modules from the library.

benchmark base
  type: exitcode-stdio-1.0
  include-dirs:     src/Streamly/Time
                  , src/Streamly/Streams
  if os(windows)
    c-sources:     src/Streamly/Time/Windows.c
  if os(darwin)
    c-sources:     src/Streamly/Time/Darwin.c
  hs-source-dirs: benchmark, src
  main-is: BaseStreams.hs
  other-modules:     Streamly.Atomics
                   , Streamly.Time.Units
                   , Streamly.Time.Clock
                   , Streamly.SVar
                   , Streamly.Streams.StreamK.Type
                   , Streamly.Streams.StreamK
                   , Streamly.Streams.StreamD.Type
                   , Streamly.Streams.StreamD
                   , Streamly.Streams.Prelude

                   , StreamDOps
                   , StreamKOps

  default-language: Haskell2010
  ghc-options:  -O2 -Wall -fspec-constr-recursive=10 -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    ghc-options:    -Wmissed-specialisations
                    -Wall-missed-specialisations
                    -fno-ignore-asserts
  if impl(ghc >= 8.0)
    ghc-options:    -Wcompat
                    -Wunrecognised-warning-flags
                    -Widentities
                    -Wincomplete-record-updates
                    -Wincomplete-uni-patterns
                    -Wredundant-constraints
                    -Wnoncanonical-monad-instances
                    -Wnoncanonical-monadfail-instances

  if flag(dev)
    buildable: True
    build-depends:
        base              >= 4.8   && < 5
      , deepseq           >= 1.4.3 && < 1.5
      , random            >= 1.0   && < 2.0
      , gauge             >= 0.2.4 && < 0.3

      , ghc-prim          >= 0.2   && < 0.6
      , containers        >= 0.5   && < 0.7
      , heaps             >= 0.3   && < 0.4

      -- concurrency
      , atomic-primops    >= 0.8   && < 0.9
      , lockfree-queue    >= 0.2.3 && < 0.3

      , exceptions        >= 0.8   && < 0.11
      , monad-control     >= 1.0   && < 2
      , mtl               >= 2.2   && < 3
      , transformers      >= 0.4   && < 0.6
      , transformers-base >= 0.4   && < 0.5

    if impl(ghc < 8.0)
        build-depends:
            semigroups    >= 0.18   && < 0.19
  else
    buildable: False

executable nano-bench
  hs-source-dirs: benchmark, src
  include-dirs:     src/Streamly/Time
                  , src/Streamly/Streams
  if os(windows)
    c-sources:     src/Streamly/Time/Windows.c
  if os(darwin)
    c-sources:     src/Streamly/Time/Darwin.c
  main-is: NanoBenchmarks.hs
  other-modules:     Streamly.Atomics
                   , Streamly.Time.Units
                   , Streamly.Time.Clock
                   , Streamly.SVar
                   , Streamly.Streams.StreamK.Type
                   , Streamly.Streams.StreamK
                   , Streamly.Streams.StreamD.Type
                   , Streamly.Streams.StreamD
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    buildable: True
    build-depends:
         base              >= 4.8   && < 5
       , gauge             >= 0.2.4 && < 0.3
       , ghc-prim          >= 0.2   && < 0.6
       , containers        >= 0.5   && < 0.7
       , deepseq           >= 1.4.3 && < 1.5
       , heaps             >= 0.3   && < 0.4
       , random            >= 1.0   && < 2.0

       -- concurrency
       , atomic-primops    >= 0.8   && < 0.9
       , lockfree-queue    >= 0.2.3 && < 0.3

       , exceptions        >= 0.8   && < 0.11
       , monad-control     >= 1.0   && < 2
       , mtl               >= 2.2   && < 3
       , transformers      >= 0.4   && < 0.6
       , transformers-base >= 0.4   && < 0.5
  else
    buildable: False

executable adaptive
  hs-source-dirs: benchmark
  main-is: Adaptive.hs
  default-language: Haskell2010
  ghc-options:  -O2 -Wall -with-rtsopts "-T"

  if flag(has-llvm)
    ghc-options: -fllvm

  if flag(dev)
    buildable: True
    build-depends:
        streamly
       , base              >= 4.8   && < 5
       , gauge             >= 0.2.4 && < 0.3
       , random            >= 1.0   && < 2.0
  else
    buildable: False

executable chart
  default-language: Haskell2010
  hs-source-dirs: benchmark
  main-is: Chart.hs
  if flag(dev) && !flag(no-charts) && !impl(ghcjs)
    buildable: True
    build-Depends:
        base >= 4.8 && < 5
      , bench-show >= 0.2 && < 0.3
      , split
      , transformers >= 0.4   && < 0.6
  else
    buildable: False

-------------------------------------------------------------------------------
-- Examples
-------------------------------------------------------------------------------

executable SearchQuery
  default-language: Haskell2010
  main-is: SearchQuery.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if (flag(examples) || flag(examples-sdl)) && !impl(ghcjs)
    buildable: True
    build-Depends:
        streamly
      , base         >= 4.8   && < 5
      , http-conduit >= 2.2.2 && < 2.4
  else
    buildable: False

executable ListDir
  default-language: Haskell2010
  main-is: ListDir.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if flag(examples) || flag(examples-sdl)
    buildable: True
    build-Depends:
        streamly
      , base    >= 4.8   && < 5
      , path-io >= 0.1.0 && < 1.5
    if impl(ghc < 8.0)
      build-depends:
          transformers  >= 0.4    && < 0.6
  else
    buildable: False

executable MergeSort
  default-language: Haskell2010
  main-is: MergeSort.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if flag(examples) || flag(examples-sdl)
    buildable: True
    build-Depends:
        streamly
      , base   >= 4.8   && < 5
      , random >= 1.0.0 && < 2
  else
    buildable: False

executable AcidRain
  default-language: Haskell2010
  main-is: AcidRain.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if flag(examples) || flag(examples-sdl)
    buildable: True
    build-Depends:
        streamly
      , base         >= 4.8   && < 5
      , mtl          >= 2.2   && < 3
    if impl(ghc < 8.0)
      build-depends:
          semigroups    >= 0.18   && < 0.19
        , transformers  >= 0.4    && < 0.6
  else
    buildable: False

executable CirclingSquare
  default-language: Haskell2010
  main-is: CirclingSquare.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if flag(examples-sdl)
    buildable: True
    build-Depends:
        streamly
      , base >= 4.8   && < 5
      , SDL  >= 0.6.5 && < 0.7
  else
    buildable: False

executable ControlFlow
  default-language: Haskell2010
  main-is: ControlFlow.hs
  hs-source-dirs:  examples
  ghc-options: -Wall
  if flag(examples) || flag(examples-sdl)
    buildable: True
    build-Depends:
        streamly
      , base              >= 4.8   && < 5
      , exceptions        >= 0.8   && < 0.11
      , transformers      >= 0.4   && < 0.6
      , transformers-base >= 0.4   && < 0.5
    if impl(ghc < 8.0)
      build-depends:
          semigroups    >= 0.18   && < 0.19
  else
    buildable: False