<!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 >OptimizationFuel</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_OptimizationFuel.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/OptimizationFuel.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" >OptimizationFuel</FONT ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Description</TD ></TR ><TR ><TD CLASS="doc" ><P >Optimisation fuel is used to control the amount of work the optimiser does. </P ><P >Every optimisation step consumes a certain amount of fuel and stops when it runs out of fuel. This can be used e.g. to debug optimiser bugs: Run the optimiser with varying amount of fuel to find out the exact number of steps where a bug is introduced in the output. </P ></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" >data</SPAN > <A NAME="t:OptimizationFuel" ><A NAME="t%3AOptimizationFuel" ></A ></A ><B >OptimizationFuel</B > </TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#OptimizationFuel" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:OptimizationFuel')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:OptimizationFuel" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="../base-4.2.0.2/Text-Show.html#t%3AShow" >Show</A > <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</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:canRewriteWithFuel" ><A NAME="v%3AcanRewriteWithFuel" ></A ></A ><B >canRewriteWithFuel</B > :: <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="../base-4.2.0.2/Data-Bool.html#t%3ABool" >Bool</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#canRewriteWithFuel" >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:maybeRewriteWithFuel" ><A NAME="v%3AmaybeRewriteWithFuel" ></A ></A ><B >maybeRewriteWithFuel</B > :: <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > a -> <A HREF="../base-4.2.0.2/Data-Maybe.html#t%3AMaybe" >Maybe</A > a</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#maybeRewriteWithFuel" >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:oneLessFuel" ><A NAME="v%3AoneLessFuel" ></A ></A ><B >oneLessFuel</B > :: <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#oneLessFuel" >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:OptFuelState" ><A NAME="t%3AOptFuelState" ></A ></A ><B >OptFuelState</B > </TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#OptFuelState" >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:initOptFuelState" ><A NAME="v%3AinitOptFuelState" ></A ></A ><B >initOptFuelState</B > :: <A HREF="../base-4.2.0.2/System-IO.html#t%3AIO" >IO</A > <A HREF="OptimizationFuel.html#t%3AOptFuelState" >OptFuelState</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#initOptFuelState" >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:tankFilledTo" ><A NAME="v%3AtankFilledTo" ></A ></A ><B >tankFilledTo</B > :: <A HREF="../base-4.2.0.2/Data-Int.html#t%3AInt" >Int</A > -> <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#tankFilledTo" >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:diffFuel" ><A NAME="v%3AdiffFuel" ></A ></A ><B >diffFuel</B > :: <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="../base-4.2.0.2/Data-Int.html#t%3AInt" >Int</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#diffFuel" >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:FuelConsumer" ><A NAME="t%3AFuelConsumer" ></A ></A ><B >FuelConsumer</B > a = <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> (a, <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A >)</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#FuelConsumer" >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" >class</SPAN > <A HREF="../base-4.2.0.2/Control-Monad.html#t%3AMonad" >Monad</A > m => <A NAME="t:FuelUsingMonad" ><A NAME="t%3AFuelUsingMonad" ></A ></A ><B >FuelUsingMonad</B > m <SPAN CLASS="keyword" >where</SPAN ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#FuelUsingMonad" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="section4" >Methods</TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:fuelRemaining" ><A NAME="v%3AfuelRemaining" ></A ></A ><B >fuelRemaining</B > :: m <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#fuelRemaining" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:fuelDecrement" ><A NAME="v%3AfuelDecrement" ></A ></A ><B >fuelDecrement</B > :: <A HREF="../base-4.2.0.2/Data-Char.html#t%3AString" >String</A > -> <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> <A HREF="OptimizationFuel.html#t%3AOptimizationFuel" >OptimizationFuel</A > -> m <A HREF="../ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29" >()</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#fuelDecrement" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:fuelDec1" ><A NAME="v%3AfuelDec1" ></A ></A ><B >fuelDec1</B > :: m <A HREF="../ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29" >()</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#fuelDec1" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:fuelExhausted" ><A NAME="v%3AfuelExhausted" ></A ></A ><B >fuelExhausted</B > :: m <A HREF="../base-4.2.0.2/Data-Bool.html#t%3ABool" >Bool</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#fuelExhausted" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:lastFuelPass" ><A NAME="v%3AlastFuelPass" ></A ></A ><B >lastFuelPass</B > :: m <A HREF="../base-4.2.0.2/Data-Char.html#t%3AString" >String</A ></TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#lastFuelPass" >Source</A ></TD ></TR ></TABLE ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:FuelUsingMonad')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:FuelUsingMonad" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="OptimizationFuel.html#t%3AFuelUsingMonad" >FuelUsingMonad</A > <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="OptimizationFuel.html#t%3AFuelUsingMonad" >FuelUsingMonad</A > (DFM' <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > f)</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:FuelState" ><A NAME="t%3AFuelState" ></A ></A ><B >FuelState</B > </TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#FuelState" >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:runFuelIO" ><A NAME="v%3ArunFuelIO" ></A ></A ><B >runFuelIO</B > :: <A HREF="OptimizationFuel.html#t%3AOptFuelState" >OptFuelState</A > -> <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > a -> <A HREF="../base-4.2.0.2/System-IO.html#t%3AIO" >IO</A > a</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#runFuelIO" >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:fuelConsumingPass" ><A NAME="v%3AfuelConsumingPass" ></A ></A ><B >fuelConsumingPass</B > :: <A HREF="../base-4.2.0.2/Data-Char.html#t%3AString" >String</A > -> <A HREF="OptimizationFuel.html#t%3AFuelConsumer" >FuelConsumer</A > a -> <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > a</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#fuelConsumingPass" >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:FuelMonad" ><A NAME="t%3AFuelMonad" ></A ></A ><B >FuelMonad</B > a </TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#FuelMonad" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:FuelMonad')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:FuelMonad" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="../base-4.2.0.2/Control-Monad.html#t%3AMonad" >Monad</A > <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="UniqSupply.html#t%3AMonadUnique" >MonadUnique</A > <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="OptimizationFuel.html#t%3AFuelUsingMonad" >FuelUsingMonad</A > <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="UniqSupply.html#t%3AMonadUnique" >MonadUnique</A > (DFM' <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > f)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="OptimizationFuel.html#t%3AFuelUsingMonad" >FuelUsingMonad</A > (DFM' <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > f)</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:liftUniq" ><A NAME="v%3AliftUniq" ></A ></A ><B >liftUniq</B > :: <A HREF="UniqSupply.html#t%3AUniqSM" >UniqSM</A > x -> <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > x</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#liftUniq" >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:lGraphOfGraph" ><A NAME="v%3AlGraphOfGraph" ></A ></A ><B >lGraphOfGraph</B > :: <A HREF="ZipCfg.html#t%3AGraph" >Graph</A > m l -> <A HREF="OptimizationFuel.html#t%3AFuelMonad" >FuelMonad</A > (<A HREF="ZipCfg.html#t%3ALGraph" >LGraph</A > m l)</TD ><TD CLASS="declbut" ><A HREF="src/OptimizationFuel.html#lGraphOfGraph" >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 >