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denoland-deno/ops/optimizer_tests/async_result.out
Andreu Botella 90c0381272
fix(ops): disallow memory slices as inputs to async ops (#16738)
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>
2023-01-15 07:40:01 +00:00

140 lines
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#[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))
},
);
}