<html xmlns="http://www.w3.org/1999/xhtml" ><head ><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title >SpuriousSuperclassConstraints</title ><link href="#" rel="stylesheet" type="text/css" title="Ocean" /><link rel="stylesheet" type="text/css" href="#" /><script src="haddock-bundle.min.js" async="async" type="text/javascript" ></script ><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript" ></script ></head ><body ><div id="package-header" ><ul class="links" id="page-menu" ><li ><a href="#" >Contents</a ></li ><li ><a href="#" >Index</a ></li ></ul ><p class="caption empty" ></p ></div ><div id="content" ><div id="module-header" ><table class="info" ><tr ><th >Safe Haskell</th ><td >Safe</td ></tr ></table ><p class="caption" >SpuriousSuperclassConstraints</p ></div ><div id="description" ><p class="caption" >Description</p ><div class="doc" ><p >What is tested here:</p ><p >Due to a change in GHC 7.6.1 we had a bug that superclass contraints were included in the instances list. Edward K. repported it here:</p ><p ><a href="#" >http://www.haskell.org/pipermail/haskell-cafe/2012-September/103600.html</a ></p ><p >And here is the corresponding thread on glasgow-haskell-users:</p ><p ><a href="#" >http://www.haskell.org/pipermail/glasgow-haskell-users/2012-September/022914.html</a ></p ><p >It has been fixed in:</p ><pre >6ccf78e15a525282fef61bc4f58a279aa9c21771 Fix spurious superclass constraints bug.</pre ></div ></div ><div id="interface" ><h1 >Documentation</h1 ><div class="top" ><p class="src" ><span class="keyword" >data</span > <a id="t:SomeType" class="def" >SomeType</a > (f :: <a href="#" >*</a > -> <a href="#" >*</a >) a <a href="#" class="selflink" >#</a ></p ><div class="subs instances" ><details id="i:SomeType" open="open" ><summary >Instances</summary ><table ><tr ><td class="src clearfix" ><span class="inst-left" ><span class="instance details-toggle-control details-toggle" data-details-id="i:id:SomeType:Functor:1" ></span > <a href="#" >Functor</a > (<a href="#" >SomeType</a > f)</span > <a href="#" class="selflink" >#</a ></td ><td class="doc empty" ></td ></tr ><tr ><td colspan="2" ><details id="i:id:SomeType:Functor:1" ><summary class="hide-when-js-enabled" >Instance details</summary ><div class="subs methods" ><p class="caption" >Methods</p ><p class="src" ><a href="#" >fmap</a > :: (a -> b) -> <a href="#" >SomeType</a > f a -> <a href="#" >SomeType</a > f b <a href="#" class="selflink" >#</a ></p ><p class="src" ><a href="#" >(<$)</a > :: a -> <a href="#" >SomeType</a > f b -> <a href="#" >SomeType</a > f a <a href="#" class="selflink" >#</a ></p ></div ></details ></td ></tr ><tr ><td class="src clearfix" ><span class="inst-left" ><span class="instance details-toggle-control details-toggle" data-details-id="i:id:SomeType:Applicative:2" ></span > <a href="#" >Applicative</a > f => <a href="#" >Applicative</a > (<a href="#" >SomeType</a > f)</span > <a href="#" class="selflink" >#</a ></td ><td class="doc empty" ></td ></tr ><tr ><td colspan="2" ><details id="i:id:SomeType:Applicative:2" ><summary class="hide-when-js-enabled" >Instance details</summary ><div class="subs methods" ><p class="caption" >Methods</p ><p class="src" ><a href="#" >pure</a > :: a -> <a href="#" >SomeType</a > f a <a href="#" class="selflink" >#</a ></p ><p class="src" ><a href="#" >(<*>)</a > :: <a href="#" >SomeType</a > f (a -> b) -> <a href="#" >SomeType</a > f a -> <a href="#" >SomeType</a > f b <a href="#" class="selflink" >#</a ></p ><p class="src" ><a href="#" >liftA2</a > :: (a -> b -> c) -> <a href="#" >SomeType</a > f a -> <a href="#" >SomeType</a > f b -> <a href="#" >SomeType</a > f c <a href="#" class="selflink" >#</a ></p ><p class="src" ><a href="#" >(*>)</a > :: <a href="#" >SomeType</a > f a -> <a href="#" >SomeType</a > f b -> <a href="#" >SomeType</a > f b <a href="#" class="selflink" >#</a ></p ><p class="src" ><a href="#" >(<*)</a > :: <a href="#" >SomeType</a > f a -> <a href="#" >SomeType</a > f b -> <a href="#" >SomeType</a > f a <a href="#" class="selflink" >#</a ></p ></div ></details ></td ></tr ></table ></details ></div ></div ></div ></div ><div id="footer" ></div ></body ></html >