1 files changed, 63 insertions, 0 deletions
diff --git a/src/libstd/sys/wasm/time.rs b/src/libstd/sys/wasm/time.rs
new file mode 100644
index 00000000000..7907720e4da
--- /dev/null
+++ b/src/libstd/sys/wasm/time.rs
@@ -0,0 +1,63 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use fmt;
+use time::Duration;
+
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug)]
+pub struct Instant;
+
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct SystemTime;
+
+pub const UNIX_EPOCH: SystemTime = SystemTime;
+
+impl Instant {
+    pub fn now() -> Instant {
+        panic!("not supported on web assembly");
+    }
+
+    pub fn sub_instant(&self, _other: &Instant) -> Duration {
+        panic!("can't sub yet");
+    }
+
+    pub fn add_duration(&self, _other: &Duration) -> Instant {
+        panic!("can't add yet");
+    }
+
+    pub fn sub_duration(&self, _other: &Duration) -> Instant {
+        panic!("can't sub yet");
+    }
+}
+
+impl SystemTime {
+    pub fn now() -> SystemTime {
+        panic!("not supported on web assembly");
+    }
+
+    pub fn sub_time(&self, _other: &SystemTime)
+                    -> Result<Duration, Duration> {
+        panic!()
+    }
+
+    pub fn add_duration(&self, _other: &Duration) -> SystemTime {
+        panic!()
+    }
+
+    pub fn sub_duration(&self, _other: &Duration) -> SystemTime {
+        panic!()
+    }
+}
+
+impl fmt::Debug for SystemTime {
+    fn fmt(&self, _f: &mut fmt::Formatter) -> fmt::Result {
+        panic!()
+    }
+}