Use PrimMonad to make life easier #45
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* As usual, the `IO` and `ST` code were actually the same. `PrimMonad` abstracts from that, and also adds support for monad transformers. * Removed utterly bogus `Show` instances for monadic graphs. The right thing to do is probably to offer a graph freezing primitive; then the frozen graph can be shown as usual. For large graphs, streaming conversion would be useful.
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This is a bit of a work in progress, and definitely not something to merge in a minor version. But I think the general idea is right. |
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IOandSTcode were actually the same.PrimMonadabstracts from that, and also adds support formonad transformers.
Showinstances for monadic graphs.The right thing to do is probably to offer a graph freezing
primitive; then the frozen graph can be shown as usual. For
large graphs, streaming conversion would be useful.