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denoland-deno/ops/optimizer_tests/owned_string.out
Divy Srivastava eda8c83d8b feat(ops): reland fast zero copy string arguments (#17996)
Reland https://github.com/denoland/deno/pull/16777

The codegen is disabled in async ops and when fallback to slow call is
possible (return type is a Result) to avoid hitting this V8 bug:
https://github.com/denoland/deno/issues/17159
2023-03-10 12:46:24 +09:00

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#[allow(non_camel_case_types)]
///Auto-generated by `deno_ops`, i.e: `#[op]`
///
///Use `op_string_length::decl()` to get an op-declaration
///you can include in a `deno_core::Extension`.
pub struct op_string_length;
#[doc(hidden)]
impl op_string_length {
pub fn name() -> &'static str {
stringify!(op_string_length)
}
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_string_length_fast {
_phantom: ::std::marker::PhantomData,
}),
),
is_async: false,
is_unstable: false,
is_v8: false,
argc: 1usize,
}
}
#[inline]
#[allow(clippy::too_many_arguments)]
fn call(string: String) -> u32 {
string.len() as u32
}
pub fn v8_func<'scope>(
scope: &mut deno_core::v8::HandleScope<'scope>,
args: deno_core::v8::FunctionCallbackArguments,
mut rv: deno_core::v8::ReturnValue,
) {
let ctx = unsafe {
&*(deno_core::v8::Local::<deno_core::v8::External>::cast(args.data()).value()
as *const deno_core::_ops::OpCtx)
};
let arg_0 = match deno_core::v8::Local::<
deno_core::v8::String,
>::try_from(args.get(0usize as i32)) {
Ok(v8_string) => deno_core::serde_v8::to_utf8(v8_string, scope),
Err(_) => {
return deno_core::_ops::throw_type_error(
scope,
format!("Expected string at position {}", 0usize),
);
}
};
let result = Self::call(arg_0);
let op_state = ::std::cell::RefCell::borrow(&*ctx.state);
op_state.tracker.track_sync(ctx.id);
match deno_core::serde_v8::to_v8(scope, result) {
Ok(ret) => rv.set(ret),
Err(err) => {
deno_core::_ops::throw_type_error(
scope,
format!(
"Error serializing return: {}",
deno_core::anyhow::Error::from(err)
),
)
}
};
}
}
struct op_string_length_fast {
_phantom: ::std::marker::PhantomData<()>,
}
impl<'scope> deno_core::v8::fast_api::FastFunction for op_string_length_fast {
fn function(&self) -> *const ::std::ffi::c_void {
op_string_length_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, SeqOneByteString]
}
fn return_type(&self) -> deno_core::v8::fast_api::CType {
deno_core::v8::fast_api::CType::Uint32
}
}
fn op_string_length_fast_fn<'scope>(
_: deno_core::v8::Local<deno_core::v8::Object>,
string: *const deno_core::v8::fast_api::FastApiOneByteString,
) -> u32 {
use deno_core::v8;
use deno_core::_ops;
let string = unsafe { &*string }.as_str().to_owned();
let result = op_string_length::call(string);
result
}