This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
Vacuum is a library for extracting graph representations of values
from the GHC heap at runtime. Those graphs may then be further
processed or translated to various representations for visualization --
like Graphviz, or Ubigraph.
By itself this library is not of much use to most users, unless you
want to use the raw graph data to visualize the heap in some (new)
way. Most people will want to translate the graph representation to
something like GraphViz format, which can then be rendered to a
pretty PNG or SVG file for viewing. See the vacuum-graphviz
package for more.