gecko-dev/js/rust/tests/callback.rs

65 lines
2.3 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#[macro_use]
extern crate js;
extern crate libc;
use js::ac::AutoCompartment;
use js::jsapi::root::JS::CallArgs;
use js::jsapi::root::JS::RealmOptions;
use js::jsapi::root::JSContext;
use js::jsapi::root::JS_DefineFunction;
use js::jsapi::root::JS_EncodeStringToUTF8;
use js::jsapi::root::JS_NewGlobalObject;
use js::jsapi::root::JS_ReportErrorASCII;
use js::jsapi::root::JS::OnNewGlobalHookOption;
use js::jsapi::root::JS::Value;
use js::jsval::UndefinedValue;
use js::rust::{Runtime, SIMPLE_GLOBAL_CLASS};
use std::ffi::CStr;
use std::ptr;
use std::str;
#[test]
fn callback() {
let runtime = Runtime::new(false).unwrap();
let context = runtime.cx();
let h_option = OnNewGlobalHookOption::FireOnNewGlobalHook;
let c_option = RealmOptions::default();
unsafe {
let global = JS_NewGlobalObject(context, &SIMPLE_GLOBAL_CLASS, ptr::null_mut(), h_option, &c_option);
rooted!(in(context) let global_root = global);
let global = global_root.handle();
let _ac = AutoCompartment::with_obj(context, global.get());
let function = JS_DefineFunction(context, global, b"puts\0".as_ptr() as *const libc::c_char,
Some(puts), 1, 0);
assert!(!function.is_null());
let javascript = "puts('Test Iñtërnâtiônàlizætiøn ┬─┬ノ( º _ ºノ) ');";
rooted!(in(context) let mut rval = UndefinedValue());
let _ = runtime.evaluate_script(global, javascript, "test.js", 0, rval.handle_mut());
}
}
unsafe extern "C" fn puts(context: *mut JSContext, argc: u32, vp: *mut Value) -> bool {
let args = CallArgs::from_vp(vp, argc);
if args._base.argc_ != 1 {
JS_ReportErrorASCII(context, b"puts() requires exactly 1 argument\0".as_ptr() as *const libc::c_char);
return false;
}
let arg = args.get(0);
let js = js::rust::ToString(context, arg);
rooted!(in(context) let message_root = js);
let message = JS_EncodeStringToUTF8(context, message_root.handle());
let message = CStr::from_ptr(message);
println!("{}", str::from_utf8(message.to_bytes()).unwrap());
args.rval().set(UndefinedValue());
return true;
}