dep-t
mtl
dep-t | mtl | |
---|---|---|
2 | 10 | |
8 | 357 | |
- | 0.8% | |
0.0 | 0.0 | |
about 1 year ago | 13 days ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
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dep-t
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Application-managed call stacks, without polluting the business logic
dep-t and dep-t-advice are libraries containing various helpers and utilities for this style of programming. In particular, "dep-t-advice" tries to support what is sometimes called "aspect-oriented programming". In less fancy terms, it provides function decorators that work on functions of any number of arguments. As the functional pearl The Decorator Pattern in Haskell says,
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Monad Architecture :: Haskell Weekly podcast
I would argue that passing the context as a positional parameter doesn't have to be tedious. Recently I've been experimenting with ReaderT-less architectures, for example here.
mtl
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Deprecating Safe Haskell, or heavily investing in it?
The most recent real case I remember is https://github.com/haskell/mtl/issues/110, which could ended badly.
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Type class subsets
Splitting mtl classes into algebraic and non-algebraic components (url) Factor MonadReader into Ask (algebraic) and Local (non-algebraic) classes Factor MonadWriter into Tell (algebraic) and Listen/Pass (non-algebraic)
- [ANN] mtl-2.3.1
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[ANN] mtl-2.3.1-rc1
It was the example from the ticket which works fine because there is no restriction that the argument to ContT r is a Monad
- Confusion about StateT
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Draft mtl-2.3 migration guide
I don't think so, but here is a list of upcoming changes in mtl-3.0.
What are some alternatives?
dep-t-advice - Giving good advice to functions in records-of-functions.
parallel - a library for parallel programming
COMP3141 - COMP3141: Software System Design and Implementation Study Notes
motor - Type-safe effectful state machines in Haskell
perhaps - A monad, perhaps.
capability - Extensional capabilities and deriving combinators
operational - Implement monads by specifying instructions and their desired operational semantics.
eveff - Efficient Haskell effect handlers based on evidence translation.
registry - Components as records of functions for Haskell
mtl-unleashed - MonadReader and MonadState without the functional dependencies
monad-memo - Memoization monad transformer
control-monad-free - Free monads and monad transformers