napi-rs/test_module/src/string.rs
LongYinan 1a3621b727
feat(napi): major upgrades for napi@1
1. inline everything
2. change `check_status` and `type_of` to macro
3. provide #[module_exports] macro
4. remove debug and repr[transparent] for ffi struct
2020-11-26 11:31:49 +08:00

31 lines
1,021 B
Rust

use napi::{CallContext, JsObject, JsString, Result};
#[js_function(1)]
fn concat_string(ctx: CallContext) -> Result<JsString> {
let in_string = ctx.get::<JsString>(0)?;
let out_string = format!("{} + Rust 🦀 string!", in_string.into_utf8()?.as_str()?);
ctx.env.create_string_from_std(out_string)
}
#[js_function(1)]
fn concat_latin1_string(ctx: CallContext) -> Result<JsString> {
let in_string = ctx.get::<JsString>(0)?;
let out_string = format!(
"{} + Rust 🦀 string!",
in_string.into_latin1()?.into_latin1_string()?
);
ctx.env.create_string_from_std(out_string)
}
#[js_function]
fn create_latin1(ctx: CallContext) -> Result<JsString> {
let bytes = vec![169, 191];
ctx.env.create_string_latin1(bytes.as_slice())
}
pub fn register_js(exports: &mut JsObject) -> Result<()> {
exports.create_named_method("concatString", concat_string)?;
exports.create_named_method("concatLatin1String", concat_latin1_string)?;
exports.create_named_method("createLatin1", create_latin1)?;
Ok(())
}