napi-rs/examples/napi-compat-mode/src/function.rs
forehalo 2467b7139b
Introduce #[napi] procedural macro to automation development boilerplate (#696)
* napi procedural macro for basic rust/JavaScript types
* introduce the `compat-mode` for `napi` and `napi-derive` crates for backward compatible
* remove #[inline] and let compiler to decide the inline behavior
* cli now can produce the `.d.ts` file for native binding
* many tests and example for the new procedural macro

Co-authored-by: LongYinan <lynweklm@gmail.com>
2021-09-23 01:29:09 +08:00

43 lines
1.3 KiB
Rust

use napi::{CallContext, JsFunction, JsNull, JsObject, Result};
#[js_function(1)]
pub fn call_function(ctx: CallContext) -> Result<JsNull> {
let js_func = ctx.get::<JsFunction>(0)?;
let js_string_hello = ctx.env.create_string("hello".as_ref())?.into_unknown();
let js_string_world = ctx.env.create_string("world".as_ref())?.into_unknown();
js_func.call(None, &[js_string_hello, js_string_world])?;
ctx.env.get_null()
}
#[js_function(1)]
pub fn call_function_with_ref_arguments(ctx: CallContext) -> Result<JsNull> {
let js_func = ctx.get::<JsFunction>(0)?;
let js_string_hello = ctx.env.create_string("hello".as_ref())?;
let js_string_world = ctx.env.create_string("world".as_ref())?;
js_func.call(None, &[&js_string_hello, &js_string_world])?;
ctx.env.get_null()
}
#[js_function(1)]
pub fn call_function_with_this(ctx: CallContext) -> Result<JsNull> {
let js_this: JsObject = ctx.this_unchecked();
let js_func = ctx.get::<JsFunction>(0)?;
js_func.call_without_args(Some(&js_this))?;
ctx.env.get_null()
}
pub fn register_js(exports: &mut JsObject) -> Result<()> {
exports.create_named_method("testCallFunction", call_function)?;
exports.create_named_method(
"testCallFunctionWithRefArguments",
call_function_with_ref_arguments,
)?;
exports.create_named_method("testCallFunctionWithThis", call_function_with_this)?;
Ok(())
}