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<title>src/Data/Functor/Bind.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ >= 702 && __GLASGOW_HASKELL <= 706 && defined(MIN_VERSION_comonad) && !(MIN_VERSION_comonad(3,0,3))</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE Trustworthy #-}</span>
<a name="line-5"></a><span class='hs-cpp'>#endif</span>
<a name="line-6"></a>
<a name="line-7"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ >= 708 && __GLASGOW_HASKELL__ < 710</span>
<a name="line-8"></a><span class='hs-comment'>{-# OPTIONS_GHC -fno-warn-amp #-}</span>
<a name="line-9"></a><span class='hs-cpp'>#endif</span>
<a name="line-10"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-11"></a><span class='hs-comment'>-- |</span>
<a name="line-12"></a><span class='hs-comment'>-- Copyright : (C) 2011-2015 Edward Kmett</span>
<a name="line-13"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE)</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- Maintainer : Edward Kmett <ekmett@gmail.com></span>
<a name="line-16"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-17"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-20"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Functor</span><span class='hs-varop'>.</span><span class='hs-conid'>Bind</span> <span class='hs-layout'>(</span>
<a name="line-21"></a> <span class='hs-comment'>-- * Functors</span>
<a name="line-22"></a> <span class='hs-conid'>Functor</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span> <span class='hs-comment'>-- :: Functor f => (a -> b) -> f a -> f b</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span> <span class='hs-varop'>$></span><span class='hs-layout'>)</span> <span class='hs-comment'>-- :: Functor f => f a -> b -> f b</span>
<a name="line-25"></a> <span class='hs-comment'>-- * Applyable functors</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Apply</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><..></span><span class='hs-layout'>)</span> <span class='hs-comment'>-- :: Apply w => w a -> w (a -> b) -> w b</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>liftF2</span> <span class='hs-comment'>-- :: Apply w => (a -> b -> c) -> w a -> w b -> w c</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>liftF3</span> <span class='hs-comment'>-- :: Apply w => (a -> b -> c -> d) -> w a -> w b -> w c -> w d</span>
<a name="line-30"></a> <span class='hs-comment'>-- * Wrappers</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>WrappedApplicative</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>MaybeApply</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-33"></a> <span class='hs-comment'>-- * Bindable functors</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Bind</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>-<<</span><span class='hs-layout'>)</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>-<-</span><span class='hs-layout'>)</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>->-</span><span class='hs-layout'>)</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>apDefault</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>returning</span>
<a name="line-40"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Functor</span><span class='hs-varop'>.</span><span class='hs-conid'>Apply</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Functor</span><span class='hs-varop'>.</span><span class='hs-conid'>Bind</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span>
<a name="line-44"></a>
<a name="line-45"></a><span class='hs-keyword'>infixr</span> <span class='hs-num'>1</span> <span class='hs-varop'>-<<</span><span class='hs-layout'>,</span> <span class='hs-varop'>-<-</span><span class='hs-layout'>,</span> <span class='hs-varop'>->-</span>
<a name="line-46"></a>
<a name="line-47"></a><a name="-%3c%3c"></a><span class='hs-layout'>(</span><span class='hs-varop'>-<<</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bind</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-48"></a><span class='hs-layout'>(</span><span class='hs-varop'>-<<</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-varop'>>>-</span><span class='hs-layout'>)</span>
<a name="line-49"></a>
<a name="line-50"></a><a name="-%3e-"></a><span class='hs-layout'>(</span><span class='hs-varop'>->-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bind</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span>
<a name="line-51"></a><a name="f"></a><span class='hs-definition'>f</span> <span class='hs-varop'>->-</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-varop'>>>-</span> <span class='hs-varid'>g</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="-%3c-"></a><span class='hs-layout'>(</span><span class='hs-varop'>-<-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bind</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>c</span>
<a name="line-54"></a><a name="g"></a><span class='hs-definition'>g</span> <span class='hs-varop'>-<-</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-varop'>>>-</span> <span class='hs-varid'>g</span>
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