A CodeRunner run script (that can be inserted in the settings) enabling development of Haskell in CodeRunner 2. This script expects ghc to be installed (brew cask install haskell-platform) as well as the correct version of LLVM (brew install llvm@VERSION). Run CodeRunner with this script without LLVM or with the wrong version and you'll get an e…

coderunner_haskell_llvm.sh

#!/bin/bash
# This is a CodeRunner compile script. Compile scripts are used to compile
# code before being run using the run command specified in CodeRunner
# preferences. This script is invoked with the following properties:
#
# Current directory:	The directory of the source file being run
#
# Arguments $1-$n:		User-defined compile flags	
#
# Environment:			$CR_FILENAME	Filename of the source file being run
#						$CR_ENCODING	Encoding code of the source file
#						$CR_TMPDIR		Path of CodeRunner's temporary directory
#
# This script should have the following return values:
# 
# Exit status:			0 on success (CodeRunner will continue and execute run command)
#
# Output (stdout):		On success, one line of text which can be accessed
#						using the $compiler variable in the run command
#
# Output (stderr):		Anything outputted here will be displayed in
#						the CodeRunner console

# requires "brew install [email protected]" or whatever LLVM version ghc asks for when you
# run "ghc -fllvm [something]"

shopt -s expand_aliases

alias gcc=yes

BASE_FILENAME=$(basename "$CR_FILENAME")
BASE_FILENAME="${BASE_FILENAME%.*}"
EXECUTABLE=$CR_TMPDIR/$BASE_FILENAME

LLVM_VERSION="5"

LLVM_DIR="/usr/local/opt/llvm@${LLVM_VERSION}/bin"

OPT="${LLVM_DIR}/opt"
LLC="${LLVM_DIR}/llc"

ghc -O2 -fllvm -pgmlo "$OPT" -pgmlc "$LLC" "${@:1}" --make -outputdir "$CR_TMPDIR" -o "$EXECUTABLE" "$CR_FILENAME" >/dev/null

STATUS=$?

if [ "$STATUS" == 0 ]
then
	echo "$EXECUTABLE"
fi
exit "$STATUS"