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authorJethro Beekman <jethro@fortanix.com>2018-08-27 09:57:51 -0700
committerJethro Beekman <jethro@fortanix.com>2018-12-06 20:37:15 +0530
commit030b1ed7f709539f5ca422758e9fe00d173aee76 (patch)
tree1253ea1024b9b7c872a32e688c1739772ad98204 /src/libstd/sys/wasm/stdio.rs
parent367e783e6f66a4dba32decdc68a262953d2f3f1b (diff)
downloadrust-030b1ed7f709539f5ca422758e9fe00d173aee76.tar.gz
rust-030b1ed7f709539f5ca422758e9fe00d173aee76.zip
Refactor stderr_prints_nothing into a more modular function
Diffstat (limited to 'src/libstd/sys/wasm/stdio.rs')
-rw-r--r--src/libstd/sys/wasm/stdio.rs8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/libstd/sys/wasm/stdio.rs b/src/libstd/sys/wasm/stdio.rs
index 023f29576a2..e51aba75333 100644
--- a/src/libstd/sys/wasm/stdio.rs
+++ b/src/libstd/sys/wasm/stdio.rs
@@ -70,6 +70,10 @@ pub fn is_ebadf(_err: &io::Error) -> bool {
     true
 }
 
-pub fn stderr_prints_nothing() -> bool {
-    !cfg!(feature = "wasm_syscall")
+pub fn panic_output() -> Option<impl io::Write> {
+    if cfg!(feature = "wasm_syscall") {
+        Stderr::new().ok()
+    } else {
+        None
+    }
 }