ChasingBottoms-1.2.2: docs/Test-ChasingBottoms-ApproxShow.html
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>Test.ChasingBottoms.ApproxShow</TITLE
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>Chasing Bottoms</TD
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>Contents</A
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>Index</A
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>Test.ChasingBottoms.ApproxShow</FONT
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><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0"
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><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>non-portable (GHC-specific)</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>experimental</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>http://www.cs.chalmers.se/~nad/</TD
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><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
>Functions for converting arbitrary (non-function, partial,
possibly infinite) values into strings.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
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><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>type</SPAN
> <A HREF="#t%3APrec"
>Prec</A
> = <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Int.html#t%3AInt"
>Int</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>class</SPAN
> <A HREF="#t%3AApproxShow"
>ApproxShow</A
> a <SPAN CLASS="keyword"
>where</SPAN
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3AapproxShowsPrec"
>approxShowsPrec</A
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> <A HREF="Test-ChasingBottoms-ApproxShow.html#t%3APrec"
>Prec</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Text-Show.html#t%3AShowS"
>ShowS</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AapproxShows"
>approxShows</A
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Text-Show.html#t%3AShowS"
>ShowS</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AapproxShow"
>approxShow</A
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Char.html#t%3AString"
>String</A
></TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
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><TR
><TD CLASS="s15"
></TD
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><TR
><TD CLASS="section1"
>Documentation</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>type</SPAN
> <A NAME="t%3APrec"
></A
><B
>Prec</B
> = <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Int.html#t%3AInt"
>Int</A
></TD
></TR
><TR
><TD CLASS="doc"
>Precedence level.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>class</SPAN
> <A NAME="t%3AApproxShow"
></A
><B
>ApproxShow</B
> a <SPAN CLASS="keyword"
>where</SPAN
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
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><TD CLASS="section4"
>Methods</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A NAME="v%3AapproxShowsPrec"
></A
><B
>approxShowsPrec</B
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> <A HREF="Test-ChasingBottoms-ApproxShow.html#t%3APrec"
>Prec</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Text-Show.html#t%3AShowS"
>ShowS</A
></TD
></TR
><TR
><TD CLASS="doc"
><P
>The <TT
><A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Generics-Basics.html#t%3AData"
>Data</A
></TT
> instance of <TT
><A HREF="Test-ChasingBottoms-ApproxShow.html#t%3AApproxShow"
>ApproxShow</A
></TT
> makes sure that
<TT
><TT
><A HREF="Test-ChasingBottoms-ApproxShow.html#v%3AapproxShowsPrec"
>approxShowsPrec</A
></TT
> n</TT
> behaves (more or less) like the derived
version of <TT
><A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Text-Show.html#v%3AshowsPrec"
>showsPrec</A
></TT
>, with the following differences:
</P
><UL
><LI
> After <TT
>n</TT
> levels of descent into a term the output is
replaced by <TT
>"_"</TT
>.
</LI
><LI
> All detectable occurences of bottoms are replaced by <TT
>"_|_"</TT
>.
</LI
><LI
> Non-bottom functions are displayed as <TT
>"<function /= _|_>"</TT
>.
</LI
></UL
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v%3AapproxShows"
></A
><B
>approxShows</B
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Text-Show.html#t%3AShowS"
>ShowS</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A NAME="v%3AapproxShow"
></A
><B
>approxShow</B
> :: <A HREF="Test-ChasingBottoms-Nat.html#t%3ANat"
>Nat</A
> -> a -> <A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Char.html#t%3AString"
>String</A
></TD
></TR
></TABLE
></TD
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></TD
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><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:ApproxShow')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:ApproxShow" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="http://www.haskell.org/ghc/docs/latest/html/libraries/base-3.0.0.0/Data-Generics-Basics.html#t%3AData"
>Data</A
> a => <A HREF="Test-ChasingBottoms-ApproxShow.html#t%3AApproxShow"
>ApproxShow</A
> a</TD
></TR
></TABLE
></DIV
></TD
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>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
> version 0.7</TD
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