simien_ops 0.1.1

Proc macros for writing simien_core ops. Forked from Deno's deno_ops 0.288.0.
Documentation
#[allow(non_camel_case_types)]
const fn op_stack_trace() -> ::simien_core::_ops::OpDecl {
    #[allow(non_camel_case_types)]
    struct op_stack_trace {
        _unconstructable: ::std::marker::PhantomData<()>,
    }
    impl ::simien_core::_ops::Op for op_stack_trace {
        const NAME: &'static str = stringify!(op_stack_trace);
        const DECL: ::simien_core::_ops::OpDecl = ::simien_core::_ops::OpDecl::new_internal_op2(
            ::simien_core::__op_name_fast!(op_stack_trace),
            false,
            false,
            false,
            0usize as u8,
            false,
            false,
            Self::v8_fn_ptr as _,
            Self::slow_function_impl,
            ::simien_core::AccessorType::None,
            Some({
                use simien_core::v8::fast_api::Type as CType;
                use simien_core::v8;
                simien_core::v8::fast_api::CFunction::new(
                    Self::v8_fn_ptr_fast as _,
                    &simien_core::v8::fast_api::CFunctionInfo::new(
                        CType::Void.as_info(),
                        &[CType::V8Value.as_info(), CType::CallbackOptions.as_info()],
                        simien_core::v8::fast_api::Int64Representation::BigInt,
                    ),
                )
            }),
            Some({
                use simien_core::v8::fast_api::Type as CType;
                use simien_core::v8;
                simien_core::v8::fast_api::CFunction::new(
                    Self::v8_fn_ptr_fast_metrics as _,
                    &simien_core::v8::fast_api::CFunctionInfo::new(
                        CType::Void.as_info(),
                        &[CType::V8Value.as_info(), CType::CallbackOptions.as_info()],
                        simien_core::v8::fast_api::Int64Representation::BigInt,
                    ),
                )
            }),
            ::simien_core::OpMetadata {
                ..::simien_core::OpMetadata::default()
            },
        );
    }
    impl op_stack_trace {
        pub const fn name() -> &'static str {
            <Self as simien_core::_ops::Op>::NAME
        }
        #[allow(clippy::too_many_arguments)]
        extern "C" fn v8_fn_ptr_fast_metrics<'s>(
            this: simien_core::v8::Local<simien_core::v8::Object>,
            fast_api_callback_options: *mut simien_core::v8::fast_api::FastApiCallbackOptions<
                's,
            >,
        ) -> () {
            let fast_api_callback_options: &'s mut _ = unsafe {
                &mut *fast_api_callback_options
            };
            let opctx: &'s _ = unsafe {
                &*(simien_core::v8::Local::<
                    simien_core::v8::External,
                >::cast_unchecked(unsafe { fast_api_callback_options.data })
                    .value() as *const simien_core::_ops::OpCtx)
            };
            simien_core::_ops::dispatch_metrics_fast(
                opctx,
                simien_core::_ops::OpMetricsEvent::Dispatched,
            );
            let res = Self::v8_fn_ptr_fast(this, fast_api_callback_options);
            simien_core::_ops::dispatch_metrics_fast(
                opctx,
                simien_core::_ops::OpMetricsEvent::Completed,
            );
            res
        }
        #[allow(clippy::too_many_arguments)]
        extern "C" fn v8_fn_ptr_fast<'s>(
            this: simien_core::v8::Local<simien_core::v8::Object>,
            fast_api_callback_options: *mut simien_core::v8::fast_api::FastApiCallbackOptions<
                's,
            >,
        ) -> () {
            #[cfg(debug_assertions)]
            let _reentrancy_check_guard = simien_core::_ops::reentrancy_check(
                &<Self as simien_core::_ops::Op>::DECL,
            );
            let fast_api_callback_options: &'s mut _ = unsafe {
                &mut *fast_api_callback_options
            };
            let scope = ::std::pin::pin!(
                unsafe { simien_core::v8::CallbackScope::new(& *
                fast_api_callback_options) }
            );
            let mut scope = scope.init();
            let opctx: &'s _ = unsafe {
                &*(simien_core::v8::Local::<
                    simien_core::v8::External,
                >::cast_unchecked(unsafe { fast_api_callback_options.data })
                    .value() as *const simien_core::_ops::OpCtx)
            };
            let opstate = opctx.state();
            if opctx.enable_stack_trace() {
                let stack_trace_msg = simien_core::v8::String::empty(&mut scope);
                let stack_trace_error = simien_core::v8::Exception::error(
                    &mut scope,
                    stack_trace_msg.into(),
                );
                let js_error = simien_core::error::JsError::from_v8_exception(
                    &mut scope,
                    stack_trace_error,
                );
                let mut op_state = ::std::cell::RefCell::borrow_mut(&opstate);
                op_state.op_stack_trace_callback.as_ref().unwrap()(js_error.frames)
            }
            let result = { Self::call() };
            result as _
        }
        fn slow_function_impl<'s>(
            info: *const simien_core::v8::FunctionCallbackInfo,
        ) -> usize {
            let info: &'s _ = unsafe { &*info };
            #[cfg(debug_assertions)]
            let _reentrancy_check_guard = simien_core::_ops::reentrancy_check(
                &<Self as simien_core::_ops::Op>::DECL,
            );
            let parts: simien_core::v8::FunctionCallbackInfoParts<'s> = info.get_parts();
            let scope = ::std::pin::pin!(
                unsafe { simien_core::v8::CallbackScope::new(info) }
            );
            let mut scope = scope.init();
            let mut rv = parts.return_value;
            let args = simien_core::v8::FunctionCallbackArguments::from_function_callback_info_parts(
                info,
                &parts,
            );
            let opctx: &'s _ = unsafe {
                &*(simien_core::v8::Local::<
                    simien_core::v8::External,
                >::cast_unchecked(args.data())
                    .value() as *const simien_core::_ops::OpCtx)
            };
            let opstate = opctx.state();
            if opctx.enable_stack_trace() {
                let stack_trace_msg = simien_core::v8::String::empty(&mut scope);
                let stack_trace_error = simien_core::v8::Exception::error(
                    &mut scope,
                    stack_trace_msg.into(),
                );
                let js_error = simien_core::error::JsError::from_v8_exception(
                    &mut scope,
                    stack_trace_error,
                );
                let mut op_state = ::std::cell::RefCell::borrow_mut(&opstate);
                op_state.op_stack_trace_callback.as_ref().unwrap()(js_error.frames)
            }
            let result = { Self::call() };
            simien_core::_ops::RustToV8RetVal::to_v8_rv(result, &mut rv);
            return 0;
        }
        extern "C" fn v8_fn_ptr(info: *const simien_core::v8::FunctionCallbackInfo) {
            Self::slow_function_impl(info);
        }
    }
    impl op_stack_trace {
        #[allow(clippy::too_many_arguments)]
        fn call() {}
    }
    <op_stack_trace as ::simien_core::_ops::Op>::DECL
}