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# taken from nixpgks: pkgs/development/tools/parsing/tree-sitter/grammar.nix
{
stdenv,
nodejs,
tree-sitter,
lib,
}:
# Build a parser grammar and put the resulting shared object in `$out/parser`
{
# language name
language,
version,
src,
location ? null,
generate ? false,
...
} @ args:
stdenv.mkDerivation ({
pname = "${language}-grammar";
inherit src version;
nativeBuildInputs = lib.optionals generate [nodejs tree-sitter];
CFLAGS = ["-Isrc" "-O2"];
CXXFLAGS = ["-Isrc" "-O2"];
stripDebugList = ["parser"];
configurePhase =
lib.optionalString (location != null) ''
cd ${location}
''
+ lib.optionalString generate ''
tree-sitter generate
'';
# When both scanner.{c,cc} exist, we should not link both since they may be the same but in
# different languages. Just randomly prefer C++ if that happens.
buildPhase = ''
runHook preBuild
if [[ -e src/scanner.cc ]]; then
$CXX -fPIC -c src/scanner.cc -o scanner.o $CXXFLAGS
elif [[ -e src/scanner.c ]]; then
$CC -fPIC -c src/scanner.c -o scanner.o $CFLAGS
fi
$CC -fPIC -c src/parser.c -o parser.o $CFLAGS
rm -rf parser
$CXX -shared -o parser *.o
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir $out
mv parser $out/
if [[ -d queries ]]; then
cp -r queries $out
fi
runHook postInstall
'';
}
// removeAttrs args ["language" "location" "generate"])
|
