feat: first pass at native plugins (#3372)

4 files changed, 158 insertions, 0 deletions

diff --git a/test_plugin/Cargo.toml b/test_plugin/Cargo.toml
new file mode 100644
index 000000000..d6c4eb1de
--- /dev/null
+++ b/test_plugin/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "test_plugin"
+version = "0.0.1"
+authors = ["the deno authors"]
+edition = "2018"
+publish = false
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+futures = "0.3"
+deno = { path = "../core" }
+deno_cli = { path = "../cli" }
\ No newline at end of file
diff --git a/test_plugin/src/lib.rs b/test_plugin/src/lib.rs
new file mode 100644
index 000000000..30df114b9
--- /dev/null
+++ b/test_plugin/src/lib.rs
@@ -0,0 +1,53 @@
+#[macro_use]
+extern crate deno;
+extern crate futures;
+
+use deno::CoreOp;
+use deno::Op;
+use deno::PluginInitContext;
+use deno::{Buf, PinnedBuf};
+use futures::future::FutureExt;
+
+fn init(context: &mut dyn PluginInitContext) {
+  context.register_op("testSync", Box::new(op_test_sync));
+  context.register_op("testAsync", Box::new(op_test_async));
+}
+init_fn!(init);
+
+pub fn op_test_sync(data: &[u8], zero_copy: Option<PinnedBuf>) -> CoreOp {
+  if let Some(buf) = zero_copy {
+    let data_str = std::str::from_utf8(&data[..]).unwrap();
+    let buf_str = std::str::from_utf8(&buf[..]).unwrap();
+    println!(
+      "Hello from plugin. data: {} | zero_copy: {}",
+      data_str, buf_str
+    );
+  }
+  let result = b"test";
+  let result_box: Buf = Box::new(*result);
+  Op::Sync(result_box)
+}
+
+pub fn op_test_async(data: &[u8], zero_copy: Option<PinnedBuf>) -> CoreOp {
+  let data_str = std::str::from_utf8(&data[..]).unwrap().to_string();
+  let fut = async move {
+    if let Some(buf) = zero_copy {
+      let buf_str = std::str::from_utf8(&buf[..]).unwrap();
+      println!(
+        "Hello from plugin. data: {} | zero_copy: {}",
+        data_str, 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());
+    let result = b"test";
+    let result_box: Buf = Box::new(*result);
+    Ok(result_box)
+  };
+
+  Op::Async(fut.boxed())
+}
diff --git a/test_plugin/tests/integration_tests.rs b/test_plugin/tests/integration_tests.rs
new file mode 100644
index 000000000..a6790d013
--- /dev/null
+++ b/test_plugin/tests/integration_tests.rs
@@ -0,0 +1,44 @@
+use deno_cli::test_util::*;
+use std::process::Command;
+
+fn deno_cmd() -> Command {
+  assert!(deno_exe_path().exists());
+  Command::new(deno_exe_path())
+}
+
+#[cfg(debug_assertions)]
+const BUILD_VARIANT: &str = "debug";
+
+#[cfg(not(debug_assertions))]
+const BUILD_VARIANT: &str = "release";
+
+#[test]
+fn basic() {
+  let mut build_plugin_base = Command::new("cargo");
+  let mut build_plugin =
+    build_plugin_base.arg("build").arg("-p").arg("test_plugin");
+  if BUILD_VARIANT == "release" {
+    build_plugin = build_plugin.arg("--release");
+  }
+  let _build_plugin_output = build_plugin.output().unwrap();
+  let output = deno_cmd()
+    .arg("--allow-plugin")
+    .arg("tests/test.js")
+    .arg(BUILD_VARIANT)
+    .output()
+    .unwrap();
+  let stdout = std::str::from_utf8(&output.stdout).unwrap();
+  let stderr = std::str::from_utf8(&output.stderr).unwrap();
+  if !output.status.success() {
+    println!("stdout {}", stdout);
+    println!("stderr {}", stderr);
+  }
+  assert!(output.status.success());
+  let expected = if cfg!(target_os = "windows") {
+    "Hello from plugin. data: test | zero_copy: test\nPlugin Sync Response: test\r\nHello from plugin. data: test | zero_copy: test\nPlugin Async Response: test\r\n"
+  } else {
+    "Hello from plugin. data: test | zero_copy: test\nPlugin Sync Response: test\nHello from plugin. data: test | zero_copy: test\nPlugin Async Response: test\n"
+  };
+  assert_eq!(stdout, expected);
+  assert_eq!(stderr, "");
+}
diff --git a/test_plugin/tests/test.js b/test_plugin/tests/test.js
new file mode 100644
index 000000000..5a127d328
--- /dev/null
+++ b/test_plugin/tests/test.js
@@ -0,0 +1,47 @@
+const filenameBase = "test_plugin";
+
+let filenameSuffix = ".so";
+let filenamePrefix = "lib";
+
+if (Deno.build.os === "win") {
+  filenameSuffix = ".dll";
+  filenamePrefix = "";
+}
+if (Deno.build.os === "mac") {
+  filenameSuffix = ".dylib";
+}
+
+const filename = `../target/${Deno.args[1]}/${filenamePrefix}${filenameBase}${filenameSuffix}`;
+
+const plugin = Deno.openPlugin(filename);
+
+const { testSync, testAsync } = plugin.ops;
+
+const textDecoder = new TextDecoder();
+
+function runTestSync() {
+  const response = testSync.dispatch(
+    new Uint8Array([116, 101, 115, 116]),
+    new Uint8Array([116, 101, 115, 116])
+  );
+
+  console.log(`Plugin Sync Response: ${textDecoder.decode(response)}`);
+}
+
+testAsync.setAsyncHandler(response => {
+  console.log(`Plugin Async Response: ${textDecoder.decode(response)}`);
+});
+
+function runTestAsync() {
+  const response = testAsync.dispatch(
+    new Uint8Array([116, 101, 115, 116]),
+    new Uint8Array([116, 101, 115, 116])
+  );
+
+  if (response != null || response != undefined) {
+    throw new Error("Expected null response!");
+  }
+}
+
+runTestSync();
+runTestAsync();