Revert "Remove unstable native plugins (#10908)"

This reverts commit 7dd4090c2a3dc0222fd6ff611eeb2bd69cd28224.

1 files changed, 114 insertions, 0 deletions

diff --git a/test_plugin/src/lib.rs b/test_plugin/src/lib.rs
new file mode 100644
index 000000000..88761edcf
--- /dev/null
+++ b/test_plugin/src/lib.rs
@@ -0,0 +1,114 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+use std::borrow::Cow;
+use std::cell::RefCell;
+use std::rc::Rc;
+
+use deno_core::error::bad_resource_id;
+use deno_core::error::AnyError;
+use deno_core::op_async;
+use deno_core::op_sync;
+use deno_core::Extension;
+use deno_core::OpState;
+use deno_core::Resource;
+use deno_core::ResourceId;
+use deno_core::ZeroCopyBuf;
+use serde::Deserialize;
+
+#[no_mangle]
+pub fn init() -> Extension {
+  Extension::builder()
+    .ops(vec![
+      ("op_test_sync", op_sync(op_test_sync)),
+      ("op_test_async", op_async(op_test_async)),
+      (
+        "op_test_resource_table_add",
+        op_sync(op_test_resource_table_add),
+      ),
+      (
+        "op_test_resource_table_get",
+        op_sync(op_test_resource_table_get),
+      ),
+    ])
+    .build()
+}
+
+#[derive(Debug, Deserialize)]
+struct TestArgs {
+  val: String,
+}
+
+fn op_test_sync(
+  _state: &mut OpState,
+  args: TestArgs,
+  zero_copy: Option<ZeroCopyBuf>,
+) -> Result<String, AnyError> {
+  println!("Hello from sync plugin op.");
+
+  println!("args: {:?}", args);
+
+  if let Some(buf) = zero_copy {
+    let buf_str = std::str::from_utf8(&buf[..])?;
+    println!("zero_copy: {}", buf_str);
+  }
+
+  Ok("test".to_string())
+}
+
+async fn op_test_async(
+  _state: Rc<RefCell<OpState>>,
+  args: TestArgs,
+  zero_copy: Option<ZeroCopyBuf>,
+) -> Result<String, AnyError> {
+  println!("Hello from async plugin op.");
+
+  println!("args: {:?}", args);
+
+  if let Some(buf) = zero_copy {
+    let buf_str = std::str::from_utf8(&buf[..])?;
+    println!("zero_copy: {}", buf_str);
+  }
+
+  let (tx, rx) = futures::channel::oneshot::channel::<Result<(), ()>>();
+  std::thread::spawn(move || {
+    std::thread::sleep(std::time::Duration::from_secs(1));
+    tx.send(Ok(())).unwrap();
+  });
+  assert!(rx.await.is_ok());
+
+  Ok("test".to_string())
+}
+
+struct TestResource(String);
+impl Resource for TestResource {
+  fn name(&self) -> Cow<str> {
+    "TestResource".into()
+  }
+}
+
+fn op_test_resource_table_add(
+  state: &mut OpState,
+  text: String,
+  _: (),
+) -> Result<u32, AnyError> {
+  println!("Hello from resource_table.add plugin op.");
+
+  Ok(state.resource_table.add(TestResource(text)))
+}
+
+fn op_test_resource_table_get(
+  state: &mut OpState,
+  rid: ResourceId,
+  _: (),
+) -> Result<String, AnyError> {
+  println!("Hello from resource_table.get plugin op.");
+
+  Ok(
+    state
+      .resource_table
+      .get::<TestResource>(rid)
+      .ok_or_else(bad_resource_id)?
+      .0
+      .clone(),
+  )
+}