From 7a4c1086b532bc8d3aa7448c2bb8339f4f759290 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 16 Jul 2019 09:54:00 -0700
Subject: [PATCH] Emscripten does not have 64 bit atomics

---
 serde/src/de/impls.rs  | 9 +++++++--
 serde/src/lib.rs       | 6 ++++--
 serde/src/ser/impls.rs | 9 +++++++--
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
index 66825b1f..141629a5 100644
--- a/serde/src/de/impls.rs
+++ b/serde/src/de/impls.rs
@@ -2565,6 +2565,11 @@ macro_rules! atomic_impl {
 #[cfg(all(feature = "std", std_integer_atomics))]
 atomic_impl! {
     AtomicBool
-    AtomicI8 AtomicI16 AtomicI32 AtomicI64 AtomicIsize
-    AtomicU8 AtomicU16 AtomicU32 AtomicU64 AtomicUsize
+    AtomicI8 AtomicI16 AtomicI32 AtomicIsize
+    AtomicU8 AtomicU16 AtomicU32 AtomicUsize
+}
+
+#[cfg(all(feature = "std", std_integer_atomics, not(target_os = "emscripten")))]
+atomic_impl! {
+    AtomicI64 AtomicU64
 }
diff --git a/serde/src/lib.rs b/serde/src/lib.rs
index e4834fd7..0452bc6d 100644
--- a/serde/src/lib.rs
+++ b/serde/src/lib.rs
@@ -214,9 +214,11 @@ mod lib {
 
     #[cfg(all(feature = "std", std_integer_atomics))]
     pub use std::sync::atomic::{
-        AtomicBool, AtomicI16, AtomicI32, AtomicI64, AtomicI8, AtomicIsize, AtomicU16, AtomicU32,
-        AtomicU64, AtomicU8, AtomicUsize, Ordering,
+        AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
+        AtomicUsize, Ordering,
     };
+    #[cfg(all(feature = "std", std_integer_atomics, not(target_os = "emscripten")))]
+    pub use std::sync::atomic::{AtomicI64, AtomicU64};
 
     #[cfg(any(core_duration, feature = "std"))]
     pub use self::core::time::Duration;
diff --git a/serde/src/ser/impls.rs b/serde/src/ser/impls.rs
index c2a08efd..619be8b2 100644
--- a/serde/src/ser/impls.rs
+++ b/serde/src/ser/impls.rs
@@ -861,6 +861,11 @@ macro_rules! atomic_impl {
 #[cfg(all(feature = "std", std_integer_atomics))]
 atomic_impl! {
     AtomicBool
-    AtomicI8 AtomicI16 AtomicI32 AtomicI64 AtomicIsize
-    AtomicU8 AtomicU16 AtomicU32 AtomicU64 AtomicUsize
+    AtomicI8 AtomicI16 AtomicI32 AtomicIsize
+    AtomicU8 AtomicU16 AtomicU32 AtomicUsize
+}
+
+#[cfg(all(feature = "std", std_integer_atomics, not(target_os = "emscripten")))]
+atomic_impl! {
+    AtomicI64 AtomicU64
 }