library/std/src/personality/emcc.rs

   1 //! On Emscripten Rust panics are wrapped in C++ exceptions, so we just forward
   2 //! to `__gxx_personality_v0` which is provided by Emscripten.
   3
   4 use libc::c_int;
   5 use unwind as uw;
   6
   7 // This is required by the compiler to exist (e.g., it's a lang item), but it's
   8 // never actually called by the compiler.  Emscripten EH doesn't use a
   9 // personality function at all, it instead uses __cxa_find_matching_catch.
  10 // Wasm error handling would use __gxx_personality_wasm0.
  11 #[lang = "eh_personality"]
  12 unsafe extern "C" fn rust_eh_personality(
  13     _version: c_int,
  14     _actions: uw::_Unwind_Action,
  15     _exception_class: uw::_Unwind_Exception_Class,
  16     _exception_object: *mut uw::_Unwind_Exception,
  17     _context: *mut uw::_Unwind_Context,
  18 ) -> uw::_Unwind_Reason_Code {
  19     core::intrinsics::abort()
  20 }