data-reify: Reify a recursive data structure into an explicit graph.
|Versions||0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.6.1|
|Dependencies||base (==4.*), containers [details]|
|Copyright||(c) 2009 Andy Gill|
|Maintainer||Andy Gill <email@example.com>|
|Revised||Revision 1 made by CarterSchonwald at Tue Jun 17 19:22:41 UTC 2014|
|Category||Language, Data, Parsing, Reflection|
|Source repo||head: git clone git://github.com/ku-fpg/data-reify.git|
|Uploaded||by AndyGill at Sat Jan 8 03:57:43 UTC 2011|
|Distributions||Fedora:0.6.1, LTSHaskell:0.6.1, NixOS:0.6.1, Stackage:0.6.1, openSUSE:0.6.1|
|Executables||data-reify-test7, data-reify-test6, data-reify-test5, data-reify-test4, data-reify-test3, data-reify-test2, data-reify-test1|
|Downloads||6577 total (54 in the last 30 days)|
|Rating||(no votes yet) [estimated by rule of succession]|
|Status||Docs uploaded by user
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data-reify provided the ability to turn recursive structures into explicit graphs.
Many (implicitly or explicitly) recursive data structure can be given this ability, via
a type class instance. This gives an alternative to using
Ref for observable sharing.
Observable sharing in general is unsafe, so we use the IO monad to bound this effect,
but can be used safely even with
unsafePerformIO if some simple conditions are met.
Typically this package will be used to tie the knot with DSL's that depend of
observable sharing, like Lava.
Providing an instance for
MuRef is the mechanism for allowing a structure to be
reified into a graph, and several examples of this are provided.
Version 0.1 used unsafe pointer compares.
Version 0.2 of
StableNames, and was much faster.
Version 0.3 provided two versions of
MuRef, the mono-typed version,
for trees of a single type,
and the dynamic-typed version, for trees of different types.
Version 0.4 used
Int as a synonym for
Unique rather than
for node ids, by popular demand.
Version 0.5 merged the mono-typed and dynamic version again, by using
DynStableName, an unphantomized version of StableName.
© 2009 Andy Gill; BSD3 license.
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