Add argon linter for haskell
Argon is a monitor for cyclomatic complexity in Haskell. https://github.com/rubik/argon
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@ -122,7 +122,7 @@ formatting.
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| GraphQL | [eslint](http://eslint.org/), [gqlint](https://github.com/happylinks/gqlint), [prettier](https://github.com/prettier/prettier) |
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| Haml | [haml-lint](https://github.com/brigade/haml-lint) |
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| Handlebars | [ember-template-lint](https://github.com/rwjblue/ember-template-lint) |
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| Haskell | [brittany](https://github.com/lspitzner/brittany), [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/) !!, [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools), [hfmt](https://github.com/danstiner/hfmt) |
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| Haskell | [argon](https://github.com/rubik/argon), [brittany](https://github.com/lspitzner/brittany), [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/) !!, [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools), [hfmt](https://github.com/danstiner/hfmt) |
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| HTML | [alex](https://github.com/wooorm/alex) !!, [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/), [write-good](https://github.com/btford/write-good) |
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| Idris | [idris](http://www.idris-lang.org/) |
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| Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html), [google-java-format](https://github.com/google/google-java-format), [PMD](https://pmd.github.io/) |
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69
ale_linters/haskell/argon.vim
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69
ale_linters/haskell/argon.vim
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@ -0,0 +1,69 @@
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" Author: Julian Ospald <hasufell@hasufell.de>
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" Description: argon for Haskell files
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call ale#Set('haskell_argon_executable', 'argon')
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call ale#Set('haskell_argon_options', '')
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call ale#Set('haskell_argon_error_level', 12)
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call ale#Set('haskell_argon_warn_level', 8)
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call ale#Set('haskell_argon_info_level', 4)
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function! ale_linters#haskell#argon#GetExecutable(buffer) abort
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return ale#Var(a:buffer, 'haskell_argon_executable')
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endfunction
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function! ale_linters#haskell#argon#GetCommand(buffer) abort
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return ale#Escape(ale_linters#haskell#argon#GetExecutable(a:buffer))
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\ . ' '
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\ . ale#Var(a:buffer, 'haskell_argon_options')
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\ . ' -m ' . ale#Var(a:buffer, 'haskell_argon_info_level')
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\ . ' -j'
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\ . ' %t'
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endfunction
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function! ale_linters#haskell#argon#Handle(buffer, lines) abort
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let l:output = []
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for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
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if !has_key(l:error, 'blocks')
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" this cannot be formatted properly into an ALE error
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execute 'echom ''[argon] '' l:error.message'
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return l:output
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endif
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for l:block in l:error.blocks
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let l:complexity = l:block.complexity
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if l:complexity >= ale#Var(a:buffer, 'haskell_argon_error_level')
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let l:type = 'E'
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let l:max_c = ale#Var(a:buffer, 'haskell_argon_error_level')
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elseif l:complexity >= ale#Var(a:buffer, 'haskell_argon_warn_level')
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let l:type = 'W'
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let l:max_c = ale#Var(a:buffer, 'haskell_argon_warn_level')
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else
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let l:type = 'I'
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let l:max_c = ale#Var(a:buffer, 'haskell_argon_info_level')
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endif
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call add(l:output, {
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\ 'filename': l:error.path,
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\ 'lnum': l:block.lineno,
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\ 'col': l:block.col,
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\ 'text': l:block.name . ': cyclomatic complexity of ' . l:complexity,
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\ 'type': l:type,
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\})
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endfor
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endfor
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return l:output
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endfunction
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call ale#linter#Define('haskell', {
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\ 'name': 'argon',
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\ 'executable_callback': 'ale_linters#haskell#argon#GetExecutable',
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\ 'command_callback': 'ale_linters#haskell#argon#GetCommand',
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\ 'callback': 'ale_linters#haskell#argon#Handle',
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\})
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@ -2,6 +2,54 @@
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ALE Haskell Integration *ale-haskell-options*
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===============================================================================
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argon *ale-haskell-argon*
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g:ale_haskell_argon_executable *g:ale_haskell_argon_executable*
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*b:ale_haskell_argon_executable*
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Type: |String|
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Default: `'argon'`
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This variable can be changed to use a different executable for argon.
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g:ale_haskell_argon_options *g:ale_haskell_argon_options*
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*b:ale_haskell_argon_options*
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Type: |String|
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Default: `''`
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This variable can be changed to modify flags given to argon. This
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should usually not bet set, unless you know what you are doing.
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For setting the minimum cyclomatic complexity set
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`g:ale_haskell_argon_info_level` instead.
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g:ale_haskell_argon_info_level *g:ale_haskell_argon_info_level*
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*b:ale_haskell_argon_info_level*
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Type: |Number|
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Default: `4`
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What minimum cyclomatic complexity to consider "info level". This also
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sets the minimum. Everything below this will not be shown.
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Maximum is determined by `g:ale_haskell_argon_warn_level`.
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g:ale_haskell_argon_warn_level *g:ale_haskell_argon_warn_level*
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*b:ale_haskell_argon_warn_level*
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Type: |Number|
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Default: `8`
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What minimum cyclomatic complexity to consider a warning.
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Maximum is determined by `g:ale_haskell_argon_error_level`.
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g:ale_haskell_argon_error_level *g:ale_haskell_argon_error_level*
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*b:ale_haskell_argon_error_level*
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Type: |Number|
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Default: `12`
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What minimum cyclomatic complexity to consider an error.
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===============================================================================
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brittany *ale-haskell-brittany*
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@ -93,6 +93,7 @@ CONTENTS *ale-contents*
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handlebars............................|ale-handlebars-options|
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ember-template-lint.................|ale-handlebars-embertemplatelint|
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haskell...............................|ale-haskell-options|
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argon...............................|ale-haskell-argon|
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brittany............................|ale-haskell-brittany|
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ghc.................................|ale-haskell-ghc|
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hdevtools...........................|ale-haskell-hdevtools|
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74
test/handler/test_argon_handler.vader
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74
test/handler/test_argon_handler.vader
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@ -0,0 +1,74 @@
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Before:
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runtime ale_linters/haskell/argon.vim
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After:
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call ale#linter#Reset()
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Execute(The argon handler should parse items correctly):
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AssertEqual
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\ [
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\ {
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\ 'filename': 'src/Main.hs',
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\ 'lnum': 69,
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\ 'col': 1,
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\ 'text': 'toMicrosec: cyclomatic complexity of 13',
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\ 'type': 'E',
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\ },
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\ {
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\ 'filename': 'src/Main.hs',
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\ 'lnum': 202,
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\ 'col': 1,
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\ 'text': 'same: cyclomatic complexity of 8',
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\ 'type': 'W',
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\ },
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\ {
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\ 'filename': 'src/Main.hs',
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\ 'lnum': 503,
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\ 'col': 1,
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\ 'text': 'go: cyclomatic complexity of 7',
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\ 'type': 'I',
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\ },
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\ ],
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\ ale_linters#haskell#argon#Handle(bufnr(''), [json_encode([
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\ {
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\ "blocks": [
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\ {
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\ "complexity":13,
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\ "name":"toMicrosec",
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\ "lineno":69,
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\ "col":1,
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\ },
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\ {
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\ "complexity":8,
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\ "name":"same",
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\ "lineno":202,
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\ "col":1,
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\ },
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\ {
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\ "complexity":7,
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\ "name":"go",
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\ "lineno":503,
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\ "col":1,
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\ }
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\ ],
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\ "path":"src/Main.hs",
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\ "type":"result"
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\ },
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\ ])])
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Execute(The argon handler should handle empty output):
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AssertEqual
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\ [],
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\ ale_linters#haskell#argon#Handle(bufnr(''), [])
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Execute(The argon handler should handle errors):
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AssertEqual
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\ [],
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\ ale_linters#haskell#argon#Handle(bufnr(''), [json_encode([
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\ {
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\ "path":"src/Main.hs",
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\ "type":"error",
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\ "message":"3:6 Illegal datatype context (use DatatypeContexts): Show a =>",
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\ },
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\ ])])
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