Method write_bytes

crates/wasmtime/src/compile/runtime.rs:239–247

(&mut self, val: &[u8])

            }

            fn write_bytes(&mut self, val: &[u8]) {
                let mmap = self.mmap.as_mut().expect("write before reserve");
                // SAFETY: the `mmap` has not be made readonly yet so it should
                // be safe to mutate it.
                unsafe {
                    mmap.as_mut_slice()[self.len..][..val.len()].copy_from_slice(val);
                }
                self.len += val.len();
            }
        }
    }
}