depot/third_party/nixpkgs/pkgs/development/tools/parsing/tree-sitter/grammar.nix
Default email ce641f4048 Project import generated by Copybara.
GitOrigin-RevId: bc5d68306b40b8522ffb69ba6cff91898c2fbbff
2021-12-06 17:07:01 +01:00

60 lines
1.4 KiB
Nix

{ stdenv
, tree-sitter
, lib
}:
# Build a parser grammar and put the resulting shared object in `$out/parser`
{
# language name
language
# version of tree-sitter
, version
# source for the language grammar
, source
, location ? null
}:
stdenv.mkDerivation rec {
pname = "${language}-grammar";
inherit version;
src = if location == null then source else "${source}/${location}";
buildInputs = [ tree-sitter ];
dontUnpack = true;
dontConfigure = true;
CFLAGS = [ "-I${src}/src" "-O2" ];
CXXFLAGS = [ "-I${src}/src" "-O2" ];
# 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/src/scanner.cc" ]]; then
$CXX -c "$src/src/scanner.cc" -o scanner.o $CXXFLAGS
elif [[ -e "$src/src/scanner.c" ]]; then
$CC -c "$src/src/scanner.c" -o scanner.o $CFLAGS
fi
$CC -c "$src/src/parser.c" -o parser.o $CFLAGS
$CXX -shared -o parser *.o
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir $out
mv parser $out/
runHook postInstall
'';
# Strip failed on darwin: strip: error: symbols referenced by indirect symbol table entries that can't be stripped
fixupPhase = lib.optionalString stdenv.isLinux ''
runHook preFixup
$STRIP $out/parser
runHook postFixup
'';
}