fix: proper way to block tokio thread

Cargo.lock

@@ -2514,12 +2514,6 @@ dependencies = [
  "miniz_oxide",
 ]
 
-[[package]]
-name = "pollster"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22686f4785f02a4fcc856d3b3bb19bf6c8160d103f7a99cc258bddd0251dc7f2"
-
 [[package]]
 name = "portable-atomic"
 version = "1.6.0"
@@ -3617,7 +3611,6 @@ dependencies = [
  "once_cell",
  "parking_lot",
  "paste",
- "pollster",
  "serde",
  "serde_json",
  "tinymist-query",

crates/tinymist/Cargo.toml

@@ -44,7 +44,6 @@ typst-ts-core = { version = "0.4.2-rc6", default-features = false, features = [
     "vector-bbox",
     "no-content-hint",
 ] }
-pollster = "0.3.0"
 codespan-reporting = "0.11"
 typst-ts-compiler.workspace = true
 typst-preview.workspace = true

crates/tinymist/src/actor/compile.rs

@@ -492,10 +492,14 @@ impl<Ctx> CompileClient<Ctx> {
         f: impl FnOnce(&mut Ctx) -> Ret + Send + 'static,
     ) -> ZResult<Ret> {
         // get current async handle
-        if tokio::runtime::Handle::try_current().is_ok() {
+        if let Ok(e) = tokio::runtime::Handle::try_current() {
             let fut = self.steal_inner(f)?;
             // todo: remove blocking
-            return pollster::block_on(fut).map_err(map_string_err("failed to steal"));
+            return std::thread::spawn(move || {
+                e.block_on(fut).map_err(map_string_err("failed to steal"))
+            })
+            .join()
+            .unwrap();
         }
 
         self.steal_inner(f)?