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use ffi::OsString;
use marker::PhantomData;
use mem;
use vec;
pub unsafe fn init(_argc: isize, _argv: *const *const u8) {
}
pub unsafe fn cleanup() {
}
pub fn args() -> Args {
if !super::DEBUG {
return Args {
iter: Vec::new().into_iter(),
_dont_send_or_sync_me: PhantomData,
}
}
extern {
fn rust_wasm_args_count() -> usize;
fn rust_wasm_args_arg_size(a: usize) -> usize;
fn rust_wasm_args_arg_fill(a: usize, ptr: *mut u8);
}
unsafe {
let cnt = rust_wasm_args_count();
let mut v = Vec::with_capacity(cnt);
for i in 0..cnt {
let n = rust_wasm_args_arg_size(i);
let mut data = vec![0; n];
rust_wasm_args_arg_fill(i, data.as_mut_ptr());
v.push(mem::transmute::<Vec<u8>, OsString>(data));
}
Args {
iter: v.into_iter(),
_dont_send_or_sync_me: PhantomData,
}
}
}
pub struct Args {
iter: vec::IntoIter<OsString>,
_dont_send_or_sync_me: PhantomData<*mut ()>,
}
impl Args {
pub fn inner_debug(&self) -> &[OsString] {
self.iter.as_slice()
}
}
impl Iterator for Args {
type Item = OsString;
fn next(&mut self) -> Option<OsString> {
self.iter.next()
}
fn size_hint(&self) -> (usize, Option<usize>) {
self.iter.size_hint()
}
}
impl ExactSizeIterator for Args {
fn len(&self) -> usize {
self.iter.len()
}
}
impl DoubleEndedIterator for Args {
fn next_back(&mut self) -> Option<OsString> {
self.iter.next_back()
}
}