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extern crate napi_sys; mod args; mod env; mod result; mod value; pub use args::NapiArgs; pub use env::NapiEnv; pub use result::{NapiError, NapiErrorKind, NapiResult}; pub use value::{AsNapiObject, NapiAny, NapiArray, NapiArrayBuffer, NapiBoolean, NapiBuffer, NapiNull, NapiNumber, NapiObject, NapiString, NapiUndefined, NapiValue, NapiValueType}; pub mod sys { pub use napi_sys::*; } #[macro_export] macro_rules! napi_callback { ($wrapper:ident, $handler:expr) => { #[no_mangle] pub extern "C" fn $wrapper( env: $crate::sys::napi_env, cb_info: $crate::sys::napi_callback_info, ) -> $crate::sys::napi_value { use std::error::Error; use std::ffi::CString; use std::ptr; use $crate::{NapiArgs, NapiEnv, NapiResult, NapiValue}; use $crate::sys::{napi_get_undefined, napi_throw, napi_throw_error, napi_value}; let env_wrapper = NapiEnv::from(env); fn typecheck_result<'a, T: NapiValue<'a>>(_: &NapiResult<T>) {} let result = <_ as NapiArgs>::from_cb_info(&env_wrapper, cb_info) .and_then(|args| { let result = $handler(&env_wrapper, &args); typecheck_result(&result); result }); match result { Ok(value) => value.as_sys_value(), Err(error) => { if let Some(exception) = error.exception { unsafe { napi_throw(env, exception); } } else { let message = format!("{}", &error); let c_string = CString::new(message).unwrap_or_else(|_| { CString::new(error.description()).unwrap() }); unsafe { napi_throw_error( env, ptr::null(), c_string.as_ptr(), ); } } let mut result: napi_value = ptr::null_mut(); unsafe { napi_get_undefined(env, &mut result); } result } } } }; }