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Avoid a transmute that relied on undefined struct layout.

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This commit is contained in:
Simon Sapin 2015-09-18 11:30:45 +02:00
parent 03b763c2c5
commit 357463864b
1 changed files with 2 additions and 2 deletions
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4
components/layout/layout_thread.rs
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@ -55,7 +55,6 @@ use std::borrow::ToOwned;
use std::cell::RefCell;
use std::collections::HashMap;
use std::collections::hash_state::DefaultState;
use std::mem::transmute;
use std::ops::{Deref, DerefMut};
use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::mpsc::{channel, Sender, Receiver};
@ -1313,7 +1312,8 @@ impl LayoutThread {
/// Handles a message to destroy layout data. Layout data must be destroyed on *this* thread
/// because the struct type is transmuted to a different type on the script side.
unsafe fn handle_reap_style_and_layout_data(&self, data: OpaqueStyleAndLayoutData) {
let non_opaque: NonOpaqueStyleAndLayoutData = transmute(data.ptr);
let ptr: *mut () = *data.ptr;
let non_opaque: NonOpaqueStyleAndLayoutData = ptr as *mut _;
let _ = Box::from_raw(non_opaque);
}