From 2c31b45ae878b821975c4ebd94cc1e49f6073fd0 Mon Sep 17 00:00:00 2001
From: mark <markm@cs.wisc.edu>
Date: Thu, 11 Jun 2020 21:31:49 -0500
Subject: mv std libs to library/

---
 library/std/src/sys/wasm/args.rs | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 library/std/src/sys/wasm/args.rs

(limited to 'library/std/src/sys/wasm/args.rs')

diff --git a/library/std/src/sys/wasm/args.rs b/library/std/src/sys/wasm/args.rs
new file mode 100644
index 00000000000..3b6557ae325
--- /dev/null
+++ b/library/std/src/sys/wasm/args.rs
@@ -0,0 +1,46 @@
+use crate::ffi::OsString;
+use crate::marker::PhantomData;
+use crate::vec;
+
+pub unsafe fn init(_argc: isize, _argv: *const *const u8) {
+    // On wasm these should always be null, so there's nothing for us to do here
+}
+
+pub unsafe fn cleanup() {}
+
+pub fn args() -> Args {
+    Args { iter: Vec::new().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()
+    }
+}
-- 
cgit 1.4.1-3-g733a5