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{ compiler ? "default", doBenchmark ? false }:
let
config = {
packageOverrides = pkgs: rec {
haskellPackages = pkgs.haskellPackages.override {
overrides = haskellPackagesNew: haskellPackagesOld: rec {
hedgehog-fn = haskellPackagesNew.callPackage ./nix/hedgehog-fn.nix {};
tomland = haskellPackagesNew.callPackage ./nix/tomland.nix {};
parser-combinators = haskellPackagesNew.callPackage ./nix/parser-combinators.nix {};
};
};
};
};
pkgs = import <nixpkgs> { inherit config; };
haskellPackages = if compiler == "default"
then pkgs.haskellPackages
else pkgs.haskell.packages.${compiler};
variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;
drv = variant (haskellPackages.callPackage (import ./.) {});
in
if pkgs.lib.inNixShell then drv.env else drv
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