ben0x539

{ pkgs ? import <nixpkgs> { } }:

with pkgs;

stdenv.mkDerivation rec {
  name = "gnome-builder-${version}";
  version = "3.25.2-a11c9dfa";

  buildInputs = [
    libxml2 desktop_file_utils llvm clang libgit2 gobjectIntrospection librsvg

joepie91

Lower precedence means a stronger binding; ie. this list is sorted from strongest to weakest binding, and in the case of equal precedence between two operators, the associativity decides the binding.

Prec	Abbreviation	Example	Assoc	Description
1	SELECT	e . attrpath [or def]	none	Select attribute denoted by the attribute path attrpath from set e. (An attribute path is a dot-separated list of attribute names.) If the attribute doesn’t exist, return default if provided, otherwise abort evaluation.
2	APP	e1 e2	left	Call function e1 with argument e2.
3	NEG	-e	none	Numeric negation.
4	HAS_ATTR	e ? attrpath	none	Test whether set e contains the attribute denoted by attrpath; return true or false.
5	CONCAT	e1 ++ e2	right	List concatenation.
6	MUL	e1 * e2	le

taktoa

{ system ? builtins.currentSystem }:

# In order to update `nixpkgs.json` to a specific revision, run:
#
# ```bash
# $ nix-prefetch-git https://github.com/NixOS/nixpkgs.git "${REVISION}" > nixpkgs.json
# ```

with rec {
  builtin-paths = import <nix/config.nix>;

robinp

GHC API lets you process Haskell sources, and (among other) specify code generation and linking level. For example:

• (1) no codegen & no link
• (2) bytecode generation & link in memory
• (3) machine code generation & linking output binaries

For code analysis purposes, based on generating the typechecked AST, option (1) suffices most of the time. There are some situations in which it doesn't:

• TemplateHaskell (TH) splice needs to execute code (at compile time) from an imported module: the imported module must be available in compiled form, so either (2) or (3) is needed. Example: in $([|$(foo)|]), foo will be evaluated at compile-time.
• Code uses FFI imports. For this one would expect that (2) is needed (see checkCOrAsmOrLlvmOrInterp in TcForeign.hs), but actually unless it is used (say by TH, see below), even (1) works too (see the wrapper checkCg).

joepie91

Online things

• Package search (for stable channel)
  • An unofficial multi-channel package search (for all recent channels, including stable - currently not being updated)
• Options search (for stable channel)
• A list of channels, and when they were last updated
• A timeline of channel builds
• A source code search (that actually works!) of all NixOS repositories; Nix, nixpkgs, etc.

Development tooling

infinisil

self: super: let
  mkXDG = import ../xdg.nix;
in
  
{
  wget = mkXDG {
    pname = "wget";
    pkg = super.wget;
    mods = { cache }: {
      wget.flags = "--hsts-file=${cache}/hsts";

uninstall-nix-1.11.13-darwin.txt

Uninstalling nix:
1. Delete /Library/LaunchDaemons/org.nixos.nix-daemon.plist

  sudo launchctl unload /Library/LaunchDaemons/org.nixos.nix-daemon.plist
  sudo rm /Library/LaunchDaemons/org.nixos.nix-daemon.plist

2. Restore /etc/profile.backup-before-nix back to /etc/profile

  sudo mv /etc/profile.backup-before-nix /etc/profile

dpiponi

# Based on http://www.ams.org/notices/201208/rtx120801094p.pdf

import math

EPS = 1e-8

# Arithmetico-geometric mean
def agm(a, b):
    while True:
        a1 = 0.5*(a+b)

alpmestan

diff --git a/ghc/GHCi/UI.hs b/ghc/GHCi/UI.hs
index 32e581a10d..b320ef42ce 100644
--- a/ghc/GHCi/UI.hs
+++ b/ghc/GHCi/UI.hs
@@ -76,6 +76,7 @@ import Linker
 import Maybes ( orElse, expectJust )
 import NameSet
 import Panic hiding ( showException )
+import Type ( expandTypeSynonyms )
 import Util

aljce

{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE UnboxedTuples #-}
module Unsafe.Maybe where

import GHC.Prim (Addr#,nullAddr#,addrToAny#,anyToAddr#,eqAddr#,unsafeCoerce#)
import GHC.Magic (runRW#)
import GHC.Types (Any)
import Unsafe.Coerce (unsafeCoerce)