mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
90c0381272
In Rust, it is UB if a slice is mutated while borrowed except through the slice itself, and it is also UB if a mutable slice is read while borrowed. The op macro allows borrowing an `ArrayBuffer{,View}` as a memory slice for the duration of an op, but this is not sound for async ops, since the `ArrayBuffer` could be accessed from JS during the await points. This PR therefore disallows such automatic borrowing only for async ops. Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
140 lines
4.8 KiB
Text
140 lines
4.8 KiB
Text
#[allow(non_camel_case_types)]
|
|
///Auto-generated by `deno_ops`, i.e: `#[op]`
|
|
///
|
|
///Use `op_async_result::decl()` to get an op-declaration
|
|
///you can include in a `deno_core::Extension`.
|
|
pub struct op_async_result;
|
|
#[doc(hidden)]
|
|
impl op_async_result {
|
|
pub fn name() -> &'static str {
|
|
stringify!(op_async_result)
|
|
}
|
|
pub fn v8_fn_ptr<'scope>() -> deno_core::v8::FunctionCallback {
|
|
use deno_core::v8::MapFnTo;
|
|
Self::v8_func.map_fn_to()
|
|
}
|
|
pub fn decl<'scope>() -> deno_core::OpDecl {
|
|
deno_core::OpDecl {
|
|
name: Self::name(),
|
|
v8_fn_ptr: Self::v8_fn_ptr(),
|
|
enabled: true,
|
|
fast_fn: Some(
|
|
Box::new(op_async_result_fast {
|
|
_phantom: ::std::marker::PhantomData,
|
|
}),
|
|
),
|
|
is_async: true,
|
|
is_unstable: false,
|
|
is_v8: false,
|
|
argc: 1usize,
|
|
}
|
|
}
|
|
#[inline]
|
|
#[allow(clippy::too_many_arguments)]
|
|
async fn call(state: Rc<RefCell<OpState>>, rid: ResourceId) -> Result<u32, Error> {}
|
|
pub fn v8_func<'scope>(
|
|
scope: &mut deno_core::v8::HandleScope<'scope>,
|
|
args: deno_core::v8::FunctionCallbackArguments,
|
|
mut rv: deno_core::v8::ReturnValue,
|
|
) {
|
|
use deno_core::futures::FutureExt;
|
|
let ctx = unsafe {
|
|
&*(deno_core::v8::Local::<deno_core::v8::External>::cast(args.data()).value()
|
|
as *const deno_core::_ops::OpCtx)
|
|
};
|
|
let op_id = ctx.id;
|
|
let realm_idx = ctx.realm_idx;
|
|
let promise_id = args.get(0);
|
|
let promise_id = deno_core::v8::Local::<
|
|
deno_core::v8::Integer,
|
|
>::try_from(promise_id)
|
|
.map(|l| l.value() as deno_core::PromiseId)
|
|
.map_err(deno_core::anyhow::Error::from);
|
|
let promise_id: deno_core::PromiseId = match promise_id {
|
|
Ok(promise_id) => promise_id,
|
|
Err(err) => {
|
|
deno_core::_ops::throw_type_error(
|
|
scope,
|
|
format!("invalid promise id: {}", err),
|
|
);
|
|
return;
|
|
}
|
|
};
|
|
let arg_0 = args.get(1usize as i32);
|
|
let arg_0 = match deno_core::serde_v8::from_v8(scope, arg_0) {
|
|
Ok(v) => v,
|
|
Err(err) => {
|
|
let msg = format!(
|
|
"Error parsing args at position {}: {}", 1usize,
|
|
deno_core::anyhow::Error::from(err)
|
|
);
|
|
return deno_core::_ops::throw_type_error(scope, msg);
|
|
}
|
|
};
|
|
let get_class = {
|
|
let state = ::std::cell::RefCell::borrow(&ctx.state);
|
|
state.tracker.track_async(op_id);
|
|
state.get_error_class_fn
|
|
};
|
|
deno_core::_ops::queue_async_op(
|
|
ctx,
|
|
scope,
|
|
false,
|
|
async move {
|
|
let result = Self::call(ctx.state.clone(), arg_0).await;
|
|
(
|
|
realm_idx,
|
|
promise_id,
|
|
op_id,
|
|
deno_core::_ops::to_op_result(get_class, result),
|
|
)
|
|
},
|
|
);
|
|
}
|
|
}
|
|
struct op_async_result_fast {
|
|
_phantom: ::std::marker::PhantomData<()>,
|
|
}
|
|
impl<'scope> deno_core::v8::fast_api::FastFunction for op_async_result_fast {
|
|
fn function(&self) -> *const ::std::ffi::c_void {
|
|
op_async_result_fast_fn as *const ::std::ffi::c_void
|
|
}
|
|
fn args(&self) -> &'static [deno_core::v8::fast_api::Type] {
|
|
use deno_core::v8::fast_api::Type::*;
|
|
use deno_core::v8::fast_api::CType;
|
|
&[V8Value, Int32, Uint32, CallbackOptions]
|
|
}
|
|
fn return_type(&self) -> deno_core::v8::fast_api::CType {
|
|
deno_core::v8::fast_api::CType::Void
|
|
}
|
|
}
|
|
fn op_async_result_fast_fn<'scope>(
|
|
_: deno_core::v8::Local<deno_core::v8::Object>,
|
|
__promise_id: i32,
|
|
rid: ResourceId,
|
|
fast_api_callback_options: *mut deno_core::v8::fast_api::FastApiCallbackOptions,
|
|
) -> () {
|
|
use deno_core::v8;
|
|
use deno_core::_ops;
|
|
let __opts: &mut v8::fast_api::FastApiCallbackOptions = unsafe {
|
|
&mut *fast_api_callback_options
|
|
};
|
|
let __ctx = unsafe {
|
|
&*(v8::Local::<v8::External>::cast(unsafe { __opts.data.data }).value()
|
|
as *const _ops::OpCtx)
|
|
};
|
|
let state = __ctx.state.clone();
|
|
let result = op_async_result::call(state, rid);
|
|
let __op_id = __ctx.id;
|
|
let __state = ::std::cell::RefCell::borrow(&__ctx.state);
|
|
__state.tracker.track_async(__op_id);
|
|
let realm_idx = __ctx.realm_idx;
|
|
let __get_class = __state.get_error_class_fn;
|
|
let result = _ops::queue_fast_async_op(
|
|
__ctx,
|
|
async move {
|
|
let result = result.await;
|
|
(realm_idx, __promise_id, __op_id, _ops::to_op_result(__get_class, result))
|
|
},
|
|
);
|
|
}
|