rustc/vendor/wasm-bindgen/tests/wasm/string_vecs.rs

use wasm_bindgen::prelude::*;
use wasm_bindgen_test::*;

#[wasm_bindgen(module = "tests/wasm/string_vecs.js")]
extern "C" {
    fn pass_string_vec();
    fn pass_invalid_string_vec();
}

#[wasm_bindgen]
pub fn consume_string_vec(mut vec: Vec<String>) -> Vec<String> {
    vec.push("Hello from Rust!".to_owned());
    vec
}

#[wasm_bindgen]
pub fn consume_optional_string_vec(vec: Option<Vec<String>>) -> Option<Vec<String>> {
    vec.map(consume_string_vec)
}

#[wasm_bindgen_test]
fn test_valid() {
    pass_string_vec();
}

#[wasm_bindgen_test]
fn test_invalid() {
    pass_invalid_string_vec();
}