duration: A tiny compile-time time utility library inspired by zeit/ms

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A tiny compile-time time utility library inspired by zeit/ms

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- Time
  - Clock
    - Data.Time.Clock.Duration
      - Data.Time.Clock.Duration.QQ
      - Data.Time.Clock.Duration.Types

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duration-0.2.0.0.tar.gz [browse] (Cabal source package)
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Versions [RSS]	0.1.0.0, 0.2.0.0
Dependencies	base (>=4.7 && <5), parsec, template-haskell, time [details]
License	BSD-3-Clause
Copyright	2018 Ryota Kameoka
Author	Ryota Kameoka
Maintainer	kameoka.ryota@gmail.com
Category	Time
Home page	https://github.com/ryota-ka/duration#readme
Bug tracker	https://github.com/ryota-ka/duration/issues
Source repo	head: git clone https://github.com/ryota-ka/duration
Uploaded	by ryotakameoka at 2021-03-13T06:39:05Z
Distributions	LTSHaskell:0.2.0.0, Stackage:0.2.0.0
Reverse Dependencies	1 direct, 0 indirect [details]
Downloads	1552 total (4 in the last 30 days)
Rating	(no votes yet) [estimated by Bayesian average]
Your Rating	λ λ λ
Status	Docs available [build log] Last success reported on 2021-03-13 [all 1 reports]

Readme for duration-0.2.0.0

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duration

A tiny compile-time time utility library, inspired by zeit/ms.

Examples

{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE TypeApplications #-}

module Main where

import Data.Time.Clock (DiffTime, NominalDiffTime)
import Data.Time.Clock.Duration (t, s, ms, µs, ns, ps)

main :: IO ()
main = do
    print @DiffTime [t| 1 day |] -- 86400s
    print @DiffTime [t| 2h |]    -- 7200s
    print @DiffTime [t| -1m |]   -- -60s

    print @NominalDiffTime [s| 1 |]  -- 1s
    print @NominalDiffTime [ms| 1 |] -- 0.001s
    print @NominalDiffTime [µs| 1 |] -- 0.000001s
    print @NominalDiffTime [ns| 1 |] -- 0.000000001s
    print @NominalDiffTime [ps| 1 |] -- 0.000000000001s

    print @Int      [s| 2 days |]  -- 172800
    print @Integer  [ms| 5s |]     -- 5000
    print @Double   [µs| 2min |]   -- 1.2e8
    print @Float    [ns| -1 sec |] -- -1.0e9
    print @Rational [ps| 10ms |]   -- 10000000000 % 1