make wasm work for parse-libs

flake.nix

@@ -49,7 +49,7 @@
       override = {fast, ...}: fast;
     };
 
-    envs.dev.buildInputs = pkgs: [pkgs.tree-sitter];
+    envs.dev.buildInputs = pkgs: [pkgs.nodejs pkgs.tree-sitter pkgs.emscripten pkgs.python3];
 
     outputs = let
       inherit (config) pkgs;

package.json

@@ -16,8 +16,8 @@
     "node-gyp": ">=7 <11"
   },
   "devDependencies": {
-    "tree-sitter-cli": "^0.20.6",
-    "web-tree-sitter": "^0.20.6"
+    "tree-sitter-cli": "^0.20.8",
+    "web-tree-sitter": "^0.20.8"
   },
   "scripts": {
     "test": "tree-sitter test",

test/parse-lib

@@ -33,20 +33,18 @@ files_to_parse=$(comm -13 <(sort $failures_file) <(find $lib -name '*.hs' | sort
 if [ "$mode" == "native" ]; then
   # Ensure the scanner was recompiled
   tree-sitter test -f 'just compile it' >/dev/null
+  runner='tree-sitter parse -q'
 elif [ "$mode" == "wasm" ]; then
   # Ensure tree-sitter-haskell.wasm was compiled
   make node_modules/web-tree-sitter -s
   make tree-sitter-haskell.wasm -s
+  runner='./test/tree-sitter-parse.js'
 else
   echo "Unsupported mode: $mode"
 fi
 
 start=$(date '+%s.%N')
-if [ "$mode" == "native" ]; then
-  echo $files_to_parse | xargs -n 2000 tree-sitter parse -q
-elif [ "$mode" == "wasm" ]; then
-  echo $files_to_parse | xargs -n 2000 ./script/tree-sitter-parse.js
-fi
+eval $runner $files_to_parse
 end=$(date '+%s.%N')
 
 skipped=$( cat $failures_file | wc -w )

test/tree-sitter-parse.js

@@ -1,18 +1,18 @@
-#!/usr/bin/env node --trace-warnings --unhandled-rejections=strict
+#!/usr/bin/env node
 
 const fs = require('fs');
 const Parser = require('web-tree-sitter');
 
-if (process.argv.length < 3) {
-  console.log('Usage: script/tree-sitter-parse.js <haskell-file..>')
+if (process.argv.length < 2) {
+  console.log('Usage: test/tree-sitter-parse.js <haskell-file..>')
   process.exit(1)
 }
 
 Parser.init().then(() => {
   Parser.Language.load('tree-sitter-haskell.wasm').then((Haskell) => {
     const parser = new Parser;
     parser.setLanguage(Haskell);
-    for (let i = 2; i < process.argv.length - 1; i++) {
+    for (let i = 1; i < process.argv.length; i++) {
       const fileName = process.argv[i]
       const sourceCode = fs.readFileSync(fileName, 'utf8')
       const tree = parser.parse(sourceCode);