2 files changed, 21 insertions, 2 deletions

diff --git a/crates/stdx/src/lib.rs b/crates/stdx/src/lib.rs
index 18d5fadb9..2963484fa 100644
--- a/crates/stdx/src/lib.rs
+++ b/crates/stdx/src/lib.rs
@@ -110,7 +110,7 @@ pub fn defer<F: FnOnce()>(f: F) -> impl Drop {
     D(Some(f))
 }
 
-#[repr(transparent)]
+#[cfg_attr(not(target_arch = "wasm32"), repr(transparent))]
 pub struct JodChild(pub std::process::Child);
 
 impl ops::Deref for JodChild {
@@ -135,7 +135,10 @@ impl Drop for JodChild {
 
 impl JodChild {
     pub fn into_inner(self) -> std::process::Child {
-        // SAFETY: repr transparent
+        if cfg!(target_arch = "wasm32") {
+            panic!("no processes on wasm");
+        }
+        // SAFETY: repr transparent, except on WASM
         unsafe { std::mem::transmute::<JodChild, std::process::Child>(self) }
     }
 }
diff --git a/crates/stdx/src/process.rs b/crates/stdx/src/process.rs
index 692a2ab3d..b290ba2f0 100644
--- a/crates/stdx/src/process.rs
+++ b/crates/stdx/src/process.rs
@@ -236,3 +236,19 @@ mod imp {
         slice::from_raw_parts_mut(v.as_mut_ptr().add(v.len()), v.capacity() - v.len())
     }
 }
+
+#[cfg(target_arch = "wasm32")]
+mod imp {
+    use std::{
+        io,
+        process::{ChildStderr, ChildStdout},
+    };
+
+    pub(crate) fn read2(
+        _out_pipe: ChildStdout,
+        _err_pipe: ChildStderr,
+        _data: &mut dyn FnMut(bool, &mut Vec<u8>, bool),
+    ) -> io::Result<()> {
+        panic!("no processes on wasm")
+    }
+}