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// 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()
}
}
#[allow(clippy::unnecessary_wraps)]
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(),
)
}
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