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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use deno_runtime::deno_napi::*;
use std::os::raw::c_char;
/// # Safety
///
/// It's an N-API symbol
#[no_mangle]
pub unsafe extern "C" fn napi_fatal_error(
location: *const c_char,
location_len: isize,
message: *const c_char,
message_len: isize,
) -> ! {
let location = if location.is_null() {
None
} else {
Some(if location_len < 0 {
std::ffi::CStr::from_ptr(location).to_str().unwrap()
} else {
let slice = std::slice::from_raw_parts(
location as *const u8,
location_len as usize,
);
std::str::from_utf8(slice).unwrap()
})
};
let message = if message_len < 0 {
std::ffi::CStr::from_ptr(message).to_str().unwrap()
} else {
let slice =
std::slice::from_raw_parts(message as *const u8, message_len as usize);
std::str::from_utf8(slice).unwrap()
};
panic!(
"Fatal exception triggered by napi_fatal_error!\nLocation: {:?}\n{}",
location, message
);
}
// napi-3
#[napi_sym::napi_sym]
fn napi_fatal_exception(env: *mut Env, value: napi_value) -> Result {
let env: &mut Env = env.as_mut().ok_or(Error::InvalidArg)?;
let value = transmute::<napi_value, v8::Local<v8::Value>>(value);
let error = value.to_rust_string_lossy(&mut env.scope());
panic!(
"Fatal exception triggered by napi_fatal_exception!\n{}",
error
);
}
#[napi_sym::napi_sym]
fn napi_add_env_cleanup_hook(
env: *mut Env,
hook: extern "C" fn(*const c_void),
data: *const c_void,
) -> Result {
let env: &mut Env = env.as_mut().ok_or(Error::InvalidArg)?;
{
let mut env_cleanup_hooks = env.cleanup_hooks.borrow_mut();
if env_cleanup_hooks
.iter()
.any(|pair| pair.0 == hook && pair.1 == data)
{
panic!("Cleanup hook with this data already registered");
}
env_cleanup_hooks.push((hook, data));
}
Ok(())
}
#[napi_sym::napi_sym]
fn napi_remove_env_cleanup_hook(
env: *mut Env,
hook: extern "C" fn(*const c_void),
data: *const c_void,
) -> Result {
let env: &mut Env = env.as_mut().ok_or(Error::InvalidArg)?;
{
let mut env_cleanup_hooks = env.cleanup_hooks.borrow_mut();
// Hooks are supposed to be removed in LIFO order
let maybe_index = env_cleanup_hooks
.iter()
.rposition(|&pair| pair.0 == hook && pair.1 == data);
if let Some(index) = maybe_index {
env_cleanup_hooks.remove(index);
} else {
panic!("Cleanup hook with this data not found");
}
}
Ok(())
}
#[napi_sym::napi_sym]
fn napi_open_callback_scope(
_env: *mut Env,
_resource_object: napi_value,
_context: napi_value,
_result: *mut napi_callback_scope,
) -> Result {
// we open scope automatically when it's needed
Ok(())
}
#[napi_sym::napi_sym]
fn napi_close_callback_scope(
_env: *mut Env,
_scope: napi_callback_scope,
) -> Result {
// we close scope automatically when it's needed
Ok(())
}
#[napi_sym::napi_sym]
fn node_api_get_module_file_name(
env: *mut Env,
result: *mut *const c_char,
) -> Result {
let env: &mut Env = env.as_mut().ok_or(Error::InvalidArg)?;
let shared = env.shared();
*result = shared.filename;
Ok(())
}
#[napi_sym::napi_sym]
fn napi_module_register(module: *const NapiModule) -> Result {
MODULE.with(|cell| {
let mut slot = cell.borrow_mut();
slot.replace(module);
});
Ok(())
}
#[napi_sym::napi_sym]
fn napi_get_uv_event_loop(_env: *mut Env, uv_loop: *mut *mut ()) -> Result {
// There is no uv_loop in Deno
*uv_loop = std::ptr::null_mut();
Ok(())
}
const NODE_VERSION: napi_node_version = napi_node_version {
major: 18,
minor: 13,
patch: 0,
release: "Deno\0".as_ptr() as *const c_char,
};
#[napi_sym::napi_sym]
fn napi_get_node_version(
env: *mut Env,
result: *mut *const napi_node_version,
) -> Result {
crate::check_env!(env);
crate::check_arg!(env, result);
*result = &NODE_VERSION as *const napi_node_version;
Ok(())
}
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