<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--Rendered using the Haskell Html Library v0.2--> <HTML ><HEAD ><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" ><TITLE >InstEnv</TITLE ><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css" ><SCRIPT SRC="haddock-util.js" TYPE="text/javascript" ></SCRIPT ><SCRIPT TYPE="text/javascript" >window.onload = function () {setSynopsis("mini_InstEnv.html")};</SCRIPT ></HEAD ><BODY ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="topbar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><IMG SRC="haskell_icon.gif" WIDTH="16" HEIGHT="16" ALT=" " ></TD ><TD CLASS="title" >ghc-6.12.3: The GHC API</TD ><TD CLASS="topbut" ><A HREF="src/InstEnv.html" >Source code</A ></TD ><TD CLASS="topbut" ><A HREF="index.html" >Contents</A ></TD ><TD CLASS="topbut" ><A HREF="doc-index.html" >Index</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="modulebar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><FONT SIZE="6" >InstEnv</FONT ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Documentation</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >type</SPAN > <A NAME="t:DFunId" ><A NAME="t%3ADFunId" ></A ></A ><B >DFunId</B > = <A HREF="Var.html#t%3AId" >Id</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#DFunId" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >data</SPAN > <A NAME="t:OverlapFlag" ><A NAME="t%3AOverlapFlag" ></A ></A ><B >OverlapFlag</B > </TD ><TD CLASS="declbut" ><A HREF="src/BasicTypes.html#OverlapFlag" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" >Constructors</TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="arg" ><A NAME="v:NoOverlap" ><A NAME="v%3ANoOverlap" ></A ></A ><B >NoOverlap</B ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:OverlapOk" ><A NAME="v%3AOverlapOk" ></A ></A ><B >OverlapOk</B ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:Incoherent" ><A NAME="v%3AIncoherent" ></A ></A ><B >Incoherent</B ></TD ><TD CLASS="rdoc" ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:OverlapFlag')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:OverlapFlag" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="../base-4.2.0.2/Data-Eq.html#t%3AEq" >Eq</A > <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Outputable.html#t%3AOutputable" >Outputable</A > <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Binary.html#t%3ABinary" >Binary</A > <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >data</SPAN > <A NAME="t:Instance" ><A NAME="t%3AInstance" ></A ></A ><B >Instance</B > </TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#Instance" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" >Constructors</TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="5" CELLPADDING="0" ><TR ><TD CLASS="arg" ><A NAME="v:Instance" ><A NAME="v%3AInstance" ></A ></A ><B >Instance</B ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="body" COLSPAN="2" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="arg" ><A NAME="v:is_cls" ><A NAME="v%3Ais_cls" ></A ></A ><B >is_cls</B > :: <A HREF="Name.html#t%3AName" >Name</A ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:is_tcs" ><A NAME="v%3Ais_tcs" ></A ></A ><B >is_tcs</B > :: [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >]</TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:is_tvs" ><A NAME="v%3Ais_tvs" ></A ></A ><B >is_tvs</B > :: <A HREF="VarSet.html#t%3ATyVarSet" >TyVarSet</A ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:is_tys" ><A NAME="v%3Ais_tys" ></A ></A ><B >is_tys</B > :: [<A HREF="Type.html#t%3AType" >Type</A >]</TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:is_dfun" ><A NAME="v%3Ais_dfun" ></A ></A ><B >is_dfun</B > :: <A HREF="InstEnv.html#t%3ADFunId" >DFunId</A ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="arg" ><A NAME="v:is_flag" ><A NAME="v%3Ais_flag" ></A ></A ><B >is_flag</B > :: <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A ></TD ><TD CLASS="rdoc" ></TD ></TR ></TABLE ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Instance')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:Instance" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="Outputable.html#t%3AOutputable" >Outputable</A > <A HREF="InstEnv.html#t%3AInstance" >Instance</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Name.html#t%3ANamedThing" >NamedThing</A > <A HREF="InstEnv.html#t%3AInstance" >Instance</A ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:pprInstance" ><A NAME="v%3ApprInstance" ></A ></A ><B >pprInstance</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> <A HREF="Outputable.html#t%3ASDoc" >SDoc</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#pprInstance" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:pprInstanceHdr" ><A NAME="v%3ApprInstanceHdr" ></A ></A ><B >pprInstanceHdr</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> <A HREF="Outputable.html#t%3ASDoc" >SDoc</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#pprInstanceHdr" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:pprInstances" ><A NAME="v%3ApprInstances" ></A ></A ><B >pprInstances</B > :: [<A HREF="InstEnv.html#t%3AInstance" >Instance</A >] -> <A HREF="Outputable.html#t%3ASDoc" >SDoc</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#pprInstances" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instanceHead" ><A NAME="v%3AinstanceHead" ></A ></A ><B >instanceHead</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> ([<A HREF="Var.html#t%3ATyVar" >TyVar</A >], [<A HREF="Type.html#t%3APredType" >PredType</A >], <A HREF="Class.html#t%3AClass" >Class</A >, [<A HREF="Type.html#t%3AType" >Type</A >])</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instanceHead" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:mkLocalInstance" ><A NAME="v%3AmkLocalInstance" ></A ></A ><B >mkLocalInstance</B > :: <A HREF="InstEnv.html#t%3ADFunId" >DFunId</A > -> <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A > -> <A HREF="InstEnv.html#t%3AInstance" >Instance</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#mkLocalInstance" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:mkImportedInstance" ><A NAME="v%3AmkImportedInstance" ></A ></A ><B >mkImportedInstance</B > :: <A HREF="Name.html#t%3AName" >Name</A > -> [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >] -> <A HREF="InstEnv.html#t%3ADFunId" >DFunId</A > -> <A HREF="InstEnv.html#t%3AOverlapFlag" >OverlapFlag</A > -> <A HREF="InstEnv.html#t%3AInstance" >Instance</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#mkImportedInstance" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instanceDFunId" ><A NAME="v%3AinstanceDFunId" ></A ></A ><B >instanceDFunId</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> <A HREF="InstEnv.html#t%3ADFunId" >DFunId</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instanceDFunId" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:setInstanceDFunId" ><A NAME="v%3AsetInstanceDFunId" ></A ></A ><B >setInstanceDFunId</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> <A HREF="InstEnv.html#t%3ADFunId" >DFunId</A > -> <A HREF="InstEnv.html#t%3AInstance" >Instance</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#setInstanceDFunId" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instanceRoughTcs" ><A NAME="v%3AinstanceRoughTcs" ></A ></A ><B >instanceRoughTcs</B > :: <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >]</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instanceRoughTcs" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >type</SPAN > <A NAME="t:InstEnv" ><A NAME="t%3AInstEnv" ></A ></A ><B >InstEnv</B > = <A HREF="UniqFM.html#t%3AUniqFM" >UniqFM</A > ClsInstEnv</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#InstEnv" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:emptyInstEnv" ><A NAME="v%3AemptyInstEnv" ></A ></A ><B >emptyInstEnv</B > :: <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#emptyInstEnv" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:extendInstEnv" ><A NAME="v%3AextendInstEnv" ></A ></A ><B >extendInstEnv</B > :: <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A > -> <A HREF="InstEnv.html#t%3AInstance" >Instance</A > -> <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#extendInstEnv" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:extendInstEnvList" ><A NAME="v%3AextendInstEnvList" ></A ></A ><B >extendInstEnvList</B > :: <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A > -> [<A HREF="InstEnv.html#t%3AInstance" >Instance</A >] -> <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#extendInstEnvList" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:lookupInstEnv" ><A NAME="v%3AlookupInstEnv" ></A ></A ><B >lookupInstEnv</B > :: (<A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A >, <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A >) -> <A HREF="Class.html#t%3AClass" >Class</A > -> [<A HREF="Type.html#t%3AType" >Type</A >] -> ([InstMatch], [<A HREF="InstEnv.html#t%3AInstance" >Instance</A >])</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#lookupInstEnv" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instEnvElts" ><A NAME="v%3AinstEnvElts" ></A ></A ><B >instEnvElts</B > :: <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A > -> [<A HREF="InstEnv.html#t%3AInstance" >Instance</A >]</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instEnvElts" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:classInstances" ><A NAME="v%3AclassInstances" ></A ></A ><B >classInstances</B > :: (<A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A >, <A HREF="InstEnv.html#t%3AInstEnv" >InstEnv</A >) -> <A HREF="Class.html#t%3AClass" >Class</A > -> [<A HREF="InstEnv.html#t%3AInstance" >Instance</A >]</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#classInstances" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instanceBindFun" ><A NAME="v%3AinstanceBindFun" ></A ></A ><B >instanceBindFun</B > :: <A HREF="Var.html#t%3ATyVar" >TyVar</A > -> <A HREF="Unify.html#t%3ABindFlag" >BindFlag</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instanceBindFun" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:instanceCantMatch" ><A NAME="v%3AinstanceCantMatch" ></A ></A ><B >instanceCantMatch</B > :: [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >] -> [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >] -> <A HREF="../base-4.2.0.2/Data-Bool.html#t%3ABool" >Bool</A ></TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#instanceCantMatch" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:roughMatchTcs" ><A NAME="v%3AroughMatchTcs" ></A ></A ><B >roughMatchTcs</B > :: [<A HREF="Type.html#t%3AType" >Type</A >] -> [<A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="Name.html#t%3AName" >Name</A >]</TD ><TD CLASS="declbut" ><A HREF="src/InstEnv.html#roughMatchTcs" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="botbar" >Produced by <A HREF="http://www.haskell.org/haddock/" >Haddock</A > version 2.6.1</TD ></TR ></TABLE ></BODY ></HTML >