Squashed 'fflate/' content from commit b786929

git-subtree-dir: fflate
git-subtree-split: b786929a368521e9cfcdcf7490a8e77485d5a253

1 files changed, 20 insertions, 0 deletions

diff --git a/src/worker.ts b/src/worker.ts
new file mode 100644
index 0000000..c7e143d
--- /dev/null
+++ b/src/worker.ts
@@ -0,0 +1,20 @@
+const ch2: Record<string, string> = {};
+
+export default <T>(c: string, id: number, msg: unknown, transfer: ArrayBuffer[], cb: (err: Error, msg: T) => void) => {
+  const w = new Worker(ch2[id] ||= URL.createObjectURL(
+    new Blob([
+      c + ';addEventListener("error",function(e){e=e.error;postMessage({$e$:[e.message,e.code,e.stack]})})'
+    ], { type: 'text/javascript' })
+  ));
+  w.onmessage = e => {
+    const d = e.data, ed = d.$e$;
+    if (ed) {
+      const err = new Error(ed[0]);
+      err['code'] = ed[1];
+      err.stack = ed[2];
+      cb(err, null);
+    } else cb(null, d);
+  }
+  w.postMessage(msg, transfer);
+  return w;
+}
\ No newline at end of file