use crate::error::AnyError;
use crate::runtime::JsRuntimeState;
use crate::JsRuntime;
use crate::Op;
use crate::OpId;
use crate::OpTable;
use crate::ZeroCopyBuf;
use futures::future::FutureExt;
use rusty_v8 as v8;
use std::cell::Cell;
use std::convert::TryFrom;
use std::option::Option;
use url::Url;
use v8::MapFnTo;
lazy_static! {
pub static ref EXTERNAL_REFERENCES: v8::ExternalReferences =
v8::ExternalReferences::new(&[
v8::ExternalReference {
function: print.map_fn_to()
},
v8::ExternalReference {
function: recv.map_fn_to()
},
v8::ExternalReference {
function: send.map_fn_to()
},
v8::ExternalReference {
function: set_macrotask_callback.map_fn_to()
},
v8::ExternalReference {
function: eval_context.map_fn_to()
},
v8::ExternalReference {
getter: shared_getter.map_fn_to()
},
v8::ExternalReference {
function: queue_microtask.map_fn_to()
},
v8::ExternalReference {
function: encode.map_fn_to()
},
v8::ExternalReference {
function: decode.map_fn_to()
},
v8::ExternalReference {
function: get_promise_details.map_fn_to()
},
v8::ExternalReference {
function: get_proxy_details.map_fn_to()
},
]);
}
pub fn script_origin<'a>(
s: &mut v8::HandleScope<'a>,
resource_name: v8::Local<'a, v8::String>,
) -> v8::ScriptOrigin<'a> {
let resource_line_offset = v8::Integer::new(s, 0);
let resource_column_offset = v8::Integer::new(s, 0);
let resource_is_shared_cross_origin = v8::Boolean::new(s, false);
let script_id = v8::Integer::new(s, 123);
let source_map_url = v8::String::new(s, "").unwrap();
let resource_is_opaque = v8::Boolean::new(s, true);
let is_wasm = v8::Boolean::new(s, false);
let is_module = v8::Boolean::new(s, false);
v8::ScriptOrigin::new(
resource_name.into(),
resource_line_offset,
resource_column_offset,
resource_is_shared_cross_origin,
script_id,
source_map_url.into(),
resource_is_opaque,
is_wasm,
is_module,
)
}
pub fn module_origin<'a>(
s: &mut v8::HandleScope<'a>,
resource_name: v8::Local<'a, v8::String>,
) -> v8::ScriptOrigin<'a> {
let resource_line_offset = v8::Integer::new(s, 0);
let resource_column_offset = v8::Integer::new(s, 0);
let resource_is_shared_cross_origin = v8::Boolean::new(s, false);
let script_id = v8::Integer::new(s, 123);
let source_map_url = v8::String::new(s, "").unwrap();
let resource_is_opaque = v8::Boolean::new(s, true);
let is_wasm = v8::Boolean::new(s, false);
let is_module = v8::Boolean::new(s, true);
v8::ScriptOrigin::new(
resource_name.into(),
resource_line_offset,
resource_column_offset,
resource_is_shared_cross_origin,
script_id,
source_map_url.into(),
resource_is_opaque,
is_wasm,
is_module,
)
}
pub fn initialize_context<'s>(
scope: &mut v8::HandleScope<'s, ()>,
) -> v8::Local<'s, v8::Context> {
let scope = &mut v8::EscapableHandleScope::new(scope);
let context = v8::Context::new(scope);
let global = context.global(scope);
let scope = &mut v8::ContextScope::new(scope, context);
let deno_key = v8::String::new(scope, "Deno").unwrap();
let deno_val = v8::Object::new(scope);
global.set(scope, deno_key.into(), deno_val.into());
let core_key = v8::String::new(scope, "core").unwrap();
let core_val = v8::Object::new(scope);
deno_val.set(scope, core_key.into(), core_val.into());
let print_key = v8::String::new(scope, "print").unwrap();
let print_tmpl = v8::FunctionTemplate::new(scope, print);
let print_val = print_tmpl.get_function(scope).unwrap();
core_val.set(scope, print_key.into(), print_val.into());
let recv_key = v8::String::new(scope, "recv").unwrap();
let recv_tmpl = v8::FunctionTemplate::new(scope, recv);
let recv_val = recv_tmpl.get_function(scope).unwrap();
core_val.set(scope, recv_key.into(), recv_val.into());
let send_key = v8::String::new(scope, "send").unwrap();
let send_tmpl = v8::FunctionTemplate::new(scope, send);
let send_val = send_tmpl.get_function(scope).unwrap();
core_val.set(scope, send_key.into(), send_val.into());
let set_macrotask_callback_key =
v8::String::new(scope, "setMacrotaskCallback").unwrap();
let set_macrotask_callback_tmpl =
v8::FunctionTemplate::new(scope, set_macrotask_callback);
let set_macrotask_callback_val =
set_macrotask_callback_tmpl.get_function(scope).unwrap();
core_val.set(
scope,
set_macrotask_callback_key.into(),
set_macrotask_callback_val.into(),
);
let eval_context_key = v8::String::new(scope, "evalContext").unwrap();
let eval_context_tmpl = v8::FunctionTemplate::new(scope, eval_context);
let eval_context_val = eval_context_tmpl.get_function(scope).unwrap();
core_val.set(scope, eval_context_key.into(), eval_context_val.into());
let encode_key = v8::String::new(scope, "encode").unwrap();
let encode_tmpl = v8::FunctionTemplate::new(scope, encode);
let encode_val = encode_tmpl.get_function(scope).unwrap();
core_val.set(scope, encode_key.into(), encode_val.into());
let decode_key = v8::String::new(scope, "decode").unwrap();
let decode_tmpl = v8::FunctionTemplate::new(scope, decode);
let decode_val = decode_tmpl.get_function(scope).unwrap();
core_val.set(scope, decode_key.into(), decode_val.into());
let get_promise_details_key =
v8::String::new(scope, "getPromiseDetails").unwrap();
let get_promise_details_tmpl =
v8::FunctionTemplate::new(scope, get_promise_details);
let get_promise_details_val =
get_promise_details_tmpl.get_function(scope).unwrap();
core_val.set(
scope,
get_promise_details_key.into(),
get_promise_details_val.into(),
);
let get_proxy_details_key =
v8::String::new(scope, "getProxyDetails").unwrap();
let get_proxy_details_tmpl =
v8::FunctionTemplate::new(scope, get_proxy_details);
let get_proxy_details_val =
get_proxy_details_tmpl.get_function(scope).unwrap();
core_val.set(
scope,
get_proxy_details_key.into(),
get_proxy_details_val.into(),
);
let shared_key = v8::String::new(scope, "shared").unwrap();
core_val.set_accessor(scope, shared_key.into(), shared_getter);
let queue_microtask_key = v8::String::new(scope, "queueMicrotask").unwrap();
let queue_microtask_tmpl = v8::FunctionTemplate::new(scope, queue_microtask);
let queue_microtask_val = queue_microtask_tmpl.get_function(scope).unwrap();
global.set(
scope,
queue_microtask_key.into(),
queue_microtask_val.into(),
);
scope.escape(context)
}
pub fn boxed_slice_to_uint8array<'sc>(
scope: &mut v8::HandleScope<'sc>,
buf: Box<[u8]>,
) -> v8::Local<'sc, v8::Uint8Array> {
assert!(!buf.is_empty());
let buf_len = buf.len();
let backing_store = v8::ArrayBuffer::new_backing_store_from_boxed_slice(buf);
let backing_store_shared = backing_store.make_shared();
let ab = v8::ArrayBuffer::with_backing_store(scope, &backing_store_shared);
v8::Uint8Array::new(scope, ab, 0, buf_len)
.expect("Failed to create UintArray8")
}
pub extern "C" fn host_import_module_dynamically_callback(
context: v8::Local<v8::Context>,
referrer: v8::Local<v8::ScriptOrModule>,
specifier: v8::Local<v8::String>,
) -> *mut v8::Promise {
let scope = &mut unsafe { v8::CallbackScope::new(context) };
let specifier_str = specifier
.to_string(scope)
.unwrap()
.to_rust_string_lossy(scope);
let referrer_name = referrer.get_resource_name();
let referrer_name_str = referrer_name
.to_string(scope)
.unwrap()
.to_rust_string_lossy(scope);
let host_defined_options = referrer.get_host_defined_options();
assert_eq!(host_defined_options.length(), 0);
let resolver = v8::PromiseResolver::new(scope).unwrap();
let promise = resolver.get_promise(scope);
let resolver_handle = v8::Global::new(scope, resolver);
{
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
state.dyn_import_cb(resolver_handle, &specifier_str, &referrer_name_str);
}
&*promise as *const _ as *mut _
}
pub extern "C" fn host_initialize_import_meta_object_callback(
context: v8::Local<v8::Context>,
module: v8::Local<v8::Module>,
meta: v8::Local<v8::Object>,
) {
let scope = &mut unsafe { v8::CallbackScope::new(context) };
let state_rc = JsRuntime::state(scope);
let state = state_rc.borrow();
let id = module.get_identity_hash();
assert_ne!(id, 0);
let info = state.modules.get_info(id).expect("Module not found");
let url_key = v8::String::new(scope, "url").unwrap();
let url_val = v8::String::new(scope, &info.name).unwrap();
meta.create_data_property(scope, url_key.into(), url_val.into());
let main_key = v8::String::new(scope, "main").unwrap();
let main_val = v8::Boolean::new(scope, info.main);
meta.create_data_property(scope, main_key.into(), main_val.into());
}
pub extern "C" fn promise_reject_callback(message: v8::PromiseRejectMessage) {
let scope = &mut unsafe { v8::CallbackScope::new(&message) };
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
let promise = message.get_promise();
let promise_id = promise.get_identity_hash();
match message.get_event() {
v8::PromiseRejectEvent::PromiseRejectWithNoHandler => {
let error = message.get_value().unwrap();
let error_global = v8::Global::new(scope, error);
state
.pending_promise_exceptions
.insert(promise_id, error_global);
}
v8::PromiseRejectEvent::PromiseHandlerAddedAfterReject => {
state.pending_promise_exceptions.remove(&promise_id);
}
v8::PromiseRejectEvent::PromiseRejectAfterResolved => {}
v8::PromiseRejectEvent::PromiseResolveAfterResolved => {
}
};
}
pub(crate) unsafe fn get_backing_store_slice(
backing_store: &v8::SharedRef<v8::BackingStore>,
byte_offset: usize,
byte_length: usize,
) -> &[u8] {
let cells: *const [Cell<u8>] =
&backing_store[byte_offset..byte_offset + byte_length];
let bytes = cells as *const [u8];
&*bytes
}
#[allow(clippy::mut_from_ref)]
pub(crate) unsafe fn get_backing_store_slice_mut(
backing_store: &v8::SharedRef<v8::BackingStore>,
byte_offset: usize,
byte_length: usize,
) -> &mut [u8] {
let cells: *const [Cell<u8>] =
&backing_store[byte_offset..byte_offset + byte_length];
let bytes = cells as *const _ as *mut [u8];
&mut *bytes
}
fn print(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
_rv: v8::ReturnValue,
) {
let arg_len = args.length();
assert!(arg_len >= 0 && arg_len <= 2);
let obj = args.get(0);
let is_err_arg = args.get(1);
let mut is_err = false;
if arg_len == 2 {
let int_val = is_err_arg
.integer_value(scope)
.expect("Unable to convert to integer");
is_err = int_val != 0;
};
let tc_scope = &mut v8::TryCatch::new(scope);
let str_ = match obj.to_string(tc_scope) {
Some(s) => s,
None => v8::String::new(tc_scope, "").unwrap(),
};
if is_err {
eprint!("{}", str_.to_rust_string_lossy(tc_scope));
} else {
print!("{}", str_.to_rust_string_lossy(tc_scope));
}
}
fn recv(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
_rv: v8::ReturnValue,
) {
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
let cb = match v8::Local::<v8::Function>::try_from(args.get(0)) {
Ok(cb) => cb,
Err(err) => return throw_type_error(scope, err.to_string()),
};
let slot = match &mut state.js_recv_cb {
slot @ None => slot,
_ => return throw_type_error(scope, "Deno.core.recv() already called"),
};
slot.replace(v8::Global::new(scope, cb));
}
fn send<'s>(
scope: &mut v8::HandleScope<'s>,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let state_rc = JsRuntime::state(scope);
let state = state_rc.borrow_mut();
let op_id = match v8::Local::<v8::Integer>::try_from(args.get(0))
.map_err(AnyError::from)
.and_then(|l| OpId::try_from(l.value()).map_err(AnyError::from))
{
Ok(op_id) => op_id,
Err(err) => {
let msg = format!("invalid op id: {}", err);
let msg = v8::String::new(scope, &msg).unwrap();
let exc = v8::Exception::type_error(scope, msg);
scope.throw_exception(exc);
return;
}
};
let buf_iter = (1..args.length()).map(|idx| {
v8::Local::<v8::ArrayBufferView>::try_from(args.get(idx))
.map(|view| ZeroCopyBuf::new(scope, view))
.map_err(|err| {
let msg = format!("Invalid argument at position {}: {}", idx, err);
let msg = v8::String::new(scope, &msg).unwrap();
v8::Exception::type_error(scope, msg)
})
});
let bufs = match buf_iter.collect::<Result<_, _>>() {
Ok(bufs) => bufs,
Err(exc) => {
scope.throw_exception(exc);
return;
}
};
let op = OpTable::route_op(op_id, state.op_state.clone(), bufs);
assert_eq!(state.shared.size(), 0);
match op {
Op::Sync(buf) if !buf.is_empty() => {
rv.set(boxed_slice_to_uint8array(scope, buf).into());
}
Op::Sync(_) => {}
Op::Async(fut) => {
let fut2 = fut.map(move |buf| (op_id, buf));
state.pending_ops.push(fut2.boxed_local());
state.have_unpolled_ops.set(true);
}
Op::AsyncUnref(fut) => {
let fut2 = fut.map(move |buf| (op_id, buf));
state.pending_unref_ops.push(fut2.boxed_local());
state.have_unpolled_ops.set(true);
}
Op::NotFound => {
let msg = format!("Unknown op id: {}", op_id);
let msg = v8::String::new(scope, &msg).unwrap();
let exc = v8::Exception::type_error(scope, msg);
scope.throw_exception(exc);
}
}
}
fn set_macrotask_callback(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
_rv: v8::ReturnValue,
) {
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
let cb = match v8::Local::<v8::Function>::try_from(args.get(0)) {
Ok(cb) => cb,
Err(err) => return throw_type_error(scope, err.to_string()),
};
let slot = match &mut state.js_macrotask_cb {
slot @ None => slot,
_ => {
return throw_type_error(
scope,
"Deno.core.setMacrotaskCallback() already called",
);
}
};
slot.replace(v8::Global::new(scope, cb));
}
fn eval_context(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let source = match v8::Local::<v8::String>::try_from(args.get(0)) {
Ok(s) => s,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.throw_exception(exception);
return;
}
};
let url = v8::Local::<v8::String>::try_from(args.get(1))
.map(|n| Url::from_file_path(n.to_rust_string_lossy(scope)).unwrap());
let output = v8::Array::new(scope, 2);
let tc_scope = &mut v8::TryCatch::new(scope);
let name =
v8::String::new(tc_scope, url.as_ref().map_or("<unknown>", Url::as_str))
.unwrap();
let origin = script_origin(tc_scope, name);
let maybe_script = v8::Script::compile(tc_scope, source, Some(&origin));
if maybe_script.is_none() {
assert!(tc_scope.has_caught());
let exception = tc_scope.exception().unwrap();
let js_zero = v8::Integer::new(tc_scope, 0);
let js_null = v8::null(tc_scope);
output.set(tc_scope, js_zero.into(), js_null.into());
let errinfo_obj = v8::Object::new(tc_scope);
let is_compile_error_key =
v8::String::new(tc_scope, "isCompileError").unwrap();
let is_compile_error_val = v8::Boolean::new(tc_scope, true);
errinfo_obj.set(
tc_scope,
is_compile_error_key.into(),
is_compile_error_val.into(),
);
let is_native_error_key =
v8::String::new(tc_scope, "isNativeError").unwrap();
let is_native_error_val =
v8::Boolean::new(tc_scope, exception.is_native_error());
errinfo_obj.set(
tc_scope,
is_native_error_key.into(),
is_native_error_val.into(),
);
let thrown_key = v8::String::new(tc_scope, "thrown").unwrap();
errinfo_obj.set(tc_scope, thrown_key.into(), exception);
let js_one = v8::Integer::new(tc_scope, 1);
output.set(tc_scope, js_one.into(), errinfo_obj.into());
rv.set(output.into());
return;
}
let result = maybe_script.unwrap().run(tc_scope);
if result.is_none() {
assert!(tc_scope.has_caught());
let exception = tc_scope.exception().unwrap();
let js_zero = v8::Integer::new(tc_scope, 0);
let js_null = v8::null(tc_scope);
output.set(tc_scope, js_zero.into(), js_null.into());
let errinfo_obj = v8::Object::new(tc_scope);
let is_compile_error_key =
v8::String::new(tc_scope, "isCompileError").unwrap();
let is_compile_error_val = v8::Boolean::new(tc_scope, false);
errinfo_obj.set(
tc_scope,
is_compile_error_key.into(),
is_compile_error_val.into(),
);
let is_native_error_key =
v8::String::new(tc_scope, "isNativeError").unwrap();
let is_native_error_val =
v8::Boolean::new(tc_scope, exception.is_native_error());
errinfo_obj.set(
tc_scope,
is_native_error_key.into(),
is_native_error_val.into(),
);
let thrown_key = v8::String::new(tc_scope, "thrown").unwrap();
errinfo_obj.set(tc_scope, thrown_key.into(), exception);
let js_one = v8::Integer::new(tc_scope, 1);
output.set(tc_scope, js_one.into(), errinfo_obj.into());
rv.set(output.into());
return;
}
let js_zero = v8::Integer::new(tc_scope, 0);
let js_one = v8::Integer::new(tc_scope, 1);
let js_null = v8::null(tc_scope);
output.set(tc_scope, js_zero.into(), result.unwrap());
output.set(tc_scope, js_one.into(), js_null.into());
rv.set(output.into());
}
fn encode(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let text = match v8::Local::<v8::String>::try_from(args.get(0)) {
Ok(s) => s,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.throw_exception(exception);
return;
}
};
let text_str = text.to_rust_string_lossy(scope);
let text_bytes = text_str.as_bytes().to_vec().into_boxed_slice();
let buf = if text_bytes.is_empty() {
let ab = v8::ArrayBuffer::new(scope, 0);
v8::Uint8Array::new(scope, ab, 0, 0).expect("Failed to create UintArray8")
} else {
let buf_len = text_bytes.len();
let backing_store =
v8::ArrayBuffer::new_backing_store_from_boxed_slice(text_bytes);
let backing_store_shared = backing_store.make_shared();
let ab = v8::ArrayBuffer::with_backing_store(scope, &backing_store_shared);
v8::Uint8Array::new(scope, ab, 0, buf_len)
.expect("Failed to create UintArray8")
};
rv.set(buf.into())
}
fn decode(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let view = match v8::Local::<v8::ArrayBufferView>::try_from(args.get(0)) {
Ok(view) => view,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.throw_exception(exception);
return;
}
};
let backing_store = view.buffer(scope).unwrap().get_backing_store();
let buf = unsafe {
get_backing_store_slice(
&backing_store,
view.byte_offset(),
view.byte_length(),
)
};
match v8::String::new_from_utf8(scope, &buf, v8::NewStringType::Normal) {
Some(text) => rv.set(text.into()),
None => {
let msg = v8::String::new(scope, "string too long").unwrap();
let exception = v8::Exception::range_error(scope, msg);
scope.throw_exception(exception);
}
};
}
fn queue_microtask(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
_rv: v8::ReturnValue,
) {
match v8::Local::<v8::Function>::try_from(args.get(0)) {
Ok(f) => scope.enqueue_microtask(f),
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.throw_exception(exception);
}
};
}
fn shared_getter(
scope: &mut v8::HandleScope,
_name: v8::Local<v8::Name>,
_args: v8::PropertyCallbackArguments,
mut rv: v8::ReturnValue,
) {
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
let JsRuntimeState {
shared_ab, shared, ..
} = &mut *state;
let shared_ab = match shared_ab {
Some(ref ab) => v8::Local::new(scope, ab),
slot @ None => {
let ab = v8::SharedArrayBuffer::with_backing_store(
scope,
shared.get_backing_store(),
);
slot.replace(v8::Global::new(scope, ab));
ab
}
};
rv.set(shared_ab.into())
}
pub fn module_resolve_callback<'s>(
context: v8::Local<'s, v8::Context>,
specifier: v8::Local<'s, v8::String>,
referrer: v8::Local<'s, v8::Module>,
) -> Option<v8::Local<'s, v8::Module>> {
let scope = &mut unsafe { v8::CallbackScope::new(context) };
let state_rc = JsRuntime::state(scope);
let mut state = state_rc.borrow_mut();
let referrer_id = referrer.get_identity_hash();
let referrer_name = state
.modules
.get_info(referrer_id)
.expect("ModuleInfo not found")
.name
.to_string();
let len_ = referrer.get_module_requests_length();
let specifier_str = specifier.to_rust_string_lossy(scope);
for i in 0..len_ {
let req = referrer.get_module_request(i);
let req_str = req.to_rust_string_lossy(scope);
if req_str == specifier_str {
let id = state.module_resolve_cb(&req_str, referrer_id);
match state.modules.get_info(id) {
Some(info) => return Some(v8::Local::new(scope, &info.handle)),
None => {
let msg = format!(
r#"Cannot resolve module "{}" from "{}""#,
req_str, referrer_name
);
throw_type_error(scope, msg);
return None;
}
}
}
}
None
}
fn get_promise_details(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let promise = match v8::Local::<v8::Promise>::try_from(args.get(0)) {
Ok(val) => val,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.throw_exception(exception);
return;
}
};
let promise_details = v8::Array::new(scope, 2);
match promise.state() {
v8::PromiseState::Pending => {
let js_zero = v8::Integer::new(scope, 0);
promise_details.set(scope, js_zero.into(), js_zero.into());
rv.set(promise_details.into());
}
v8::PromiseState::Fulfilled => {
let js_zero = v8::Integer::new(scope, 0);
let js_one = v8::Integer::new(scope, 1);
let promise_result = promise.result(scope);
promise_details.set(scope, js_zero.into(), js_one.into());
promise_details.set(scope, js_one.into(), promise_result);
rv.set(promise_details.into());
}
v8::PromiseState::Rejected => {
let js_zero = v8::Integer::new(scope, 0);
let js_one = v8::Integer::new(scope, 1);
let js_two = v8::Integer::new(scope, 2);
let promise_result = promise.result(scope);
promise_details.set(scope, js_zero.into(), js_two.into());
promise_details.set(scope, js_one.into(), promise_result);
rv.set(promise_details.into());
}
}
}
fn get_proxy_details(
scope: &mut v8::HandleScope,
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let proxy = match v8::Local::<v8::Proxy>::try_from(args.get(0)) {
Ok(val) => val,
Err(_) => {
return;
}
};
let proxy_details = v8::Array::new(scope, 2);
let js_zero = v8::Integer::new(scope, 0);
let js_one = v8::Integer::new(scope, 1);
let target = proxy.get_target(scope);
let handler = proxy.get_handler(scope);
proxy_details.set(scope, js_zero.into(), target);
proxy_details.set(scope, js_one.into(), handler);
rv.set(proxy_details.into());
}
fn throw_type_error<'s>(
scope: &mut v8::HandleScope<'s>,
message: impl AsRef<str>,
) {
let message = v8::String::new(scope, message.as_ref()).unwrap();
let exception = v8::Exception::type_error(scope, message);
scope.throw_exception(exception);
}