use rand_core::RngCore;
use wasm_bindgen::prelude::wasm_bindgen;
#[wasm_bindgen]
extern "C" {
#[wasm_bindgen(typescript_type = "Rng")]
pub type Rng;
#[wasm_bindgen(method, js_name = "randomBytes")]
pub fn get_random_bytes(this: &Rng, count: usize) -> Vec<u8>;
}
impl RngCore for Rng {
fn next_u32(&mut self) -> u32 {
let bytes = self.get_random_bytes(4);
u32::from_le_bytes(bytes.try_into().unwrap())
}
fn next_u64(&mut self) -> u64 {
let bytes = self.get_random_bytes(8);
u64::from_le_bytes(bytes.try_into().unwrap())
}
fn fill_bytes(&mut self, dest: &mut [u8]) {
dest.copy_from_slice(&self.get_random_bytes(dest.len()));
}
fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
Ok(self.fill_bytes(dest))
}
}