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class OldMapserver < Formula | |
desc "Publish spatial data and interactive mapping apps to the web" | |
homepage "http://mapserver.org/" | |
url "http://download.osgeo.org/mapserver/mapserver-6.2.2.tar.gz" | |
sha256 "79b81286dde030704f59a668a19e5b01af27bb35d05b3daf91cefe06ca29ffd9" | |
bottle do | |
cellar :any | |
sha256 "8bfa96a50ee83117bd929afc4ed1c6ce3e9e82a7e6da6328e4ca500c4fbb096d" => :yosemite | |
sha256 "7ed6da72cbb724c1dfe92cc701bf292ddac02788dc7976f7a81e5e367b472262" => :mavericks |
I've been fiddling about with an idea lately, looking at how higher-kinded types can be represented in such a way that we can reason with them in Rust here and now, without having to wait a couple years for what would be a significant change to the language and compiler.
There have been multiple discussions on introducing higher-ranked polymorphism into Rust, using Haskell-style Higher-Kinded Types (HKTs) or Scala-looking Generalised Associated Types (GATs). The benefit of higher-ranked polymorphism is to allow higher-level, richer abstractions and pattern expression than just the rank-1 polymorphism we have today.
As an example, currently we can express this type:
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# https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-error-message | |
# https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#using-a-specific-shell | |
name: Steep | |
on: pull_request | |
jobs: | |
check: | |
runs-on: ubuntu-latest |
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