file-location: common functions that show file location information
Common debugging/error/exception functions that give file location information
$(err "OH NO!") main:Main main.hs:16:1 OH NO!
Notice how it displays package:module file:line:character
It exposes the functions err (error), undef (undefined), and trc (Debug.Trace.trace). All of these behave the same as their normal counterpart but also spit out a location.
Here is my favorite helper, debug, which is like trace but just show the value.
debug [1,2,3] DEBUG: [1,2,3] [1,2,3]
And The Template Haskell version.
$(dbg) [1,2,3] DEBUG main:Main main.hs:1:3 [1,2,3] [1,2,3]
Also there is a version of thrwIO that gives location information
($(thrwIO) $ AException) catch
e -> putStrLn ("Caught " ++ show (e :: AException))
Caught AException "main:Main test/main.hs:25:6"
See module for a listing of all the functions with short descriptions, and the homepage for some more examples https://github.com/gregwebs/ErrorLocation.hs
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Versions [RSS] | 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.5.1, 0.4.5.2, 0.4.5.3, 0.4.6, 0.4.7, 0.4.7.1, 0.4.8, 0.4.9, 0.4.9.1 |
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Dependencies | base (>=4 && <5), containers, HUnit, lifted-base, template-haskell, th-orphans (>=0.9), transformers (>=0.2 && <0.6) [details] |
License | BSD-3-Clause |
Author | Greg Weber |
Maintainer | greg@gregweber.info |
Category | Development |
Home page | https://github.com/gregwebs/FileLocation.hs |
Source repo | head: git clone https://github.com/gregwebs/FileLocation.hs |
Uploaded | by GregWeber at 2017-04-10T02:56:39Z |
Distributions | Debian:0.4.9.1 |
Reverse Dependencies | 3 direct, 0 indirect [details] |
Downloads | 19079 total (14 in the last 30 days) |
Rating | (no votes yet) [estimated by Bayesian average] |
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Status | Docs available [build log] Last success reported on 2017-04-10 [all 1 reports] |