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Upgrading postgresql releases over an existing installation has been painful for years due to:
- machine-specific representations stored on disk (big-/little-endian, floating point)
- the inability fo…
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Hi, I just upgraded to the latest stylish-haskell binary, but I would like to keep the previous behaviour where, in the case of a sole deriving clause, said clause is kept on the same line as the clos…
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The Language Server Protocol (LSP) is a way to develop a tool for code completion, and various other language analysis mechanisms used for productive coding. The problem that I would like to be solved…
persn updated
4 years ago
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With ghc 8.6.5, I get a deprecation warning with this module that suggests:
```
Module ?GHC.TypeLits.Witnesses? is deprecated:
Use singletons package instead
```
but the `singletons` pa…
erikd updated
5 years ago
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For reference, here's the template given in the material:
```
{-@ assume reverse :: xs:UList a -> UList a @-}
reverse :: [a] -> [a]
reverse = go []
where
{-@ go :: acc:[a…
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### Describe the feature you'd like
**When** I have a BuiltinList
**and** I know the index of element to accessed
**Then** I can directly access the item by it's index
**Additionally**, I wo…
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As I'm working on my project, I'm frequently recompiling. In the REPL, compilation takes a fraction of the amount of time that a `cabal build` takes (a second or two versus over a minute or more). Sin…
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not sure if it is a cogserver bug or a guile binding bug
```
guile> (define alt-as (cog-new-atomspace))
guile> (cog-set-atomspace! alt-as)
#
guile> (cog-atomspace)
#
```
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The original discussion of this issue is on [trac issue 15181](https://ghc.haskell.org/trac/ghc/ticket/15181). At GHCi, we can inspect the type of `GHC.Exts.raise#`:
```
>>> import GHC.Exts
>>> :…
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## Point of contact
@nikomatsakis @aturon
## Overview
The current trait system implementation is written in a "direct" style, where we perform search directly on impls and so on. While we've …