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Wrap executions of Rust code called from JS in catch_unwind. Propagate the interrupted panic to the origin of the JS execution via TLS before resuming. Fix #6462.

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This commit is contained in:
Josh Matthews 2016-06-20 13:25:42 -04:00
parent a74ce64539
commit b8853554db
4 changed files with 58 additions and 11 deletions
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13
components/script/dom/workerglobalscope.rs
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@ -28,11 +28,12 @@ use msg::constellation_msg::{PipelineId, ReferrerPolicy, PanicMsg};
use net_traits::{LoadContext, ResourceThreads, load_whole_resource};
use net_traits::{RequestSource, LoadOrigin, CustomResponseSender, IpcSend};
use profile_traits::{mem, time};
use script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort};
use script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, maybe_take_panic_result};
use script_traits::ScriptMsg as ConstellationMsg;
use script_traits::{MsDuration, TimerEvent, TimerEventId, TimerEventRequest, TimerSource};
use std::cell::Cell;
use std::default::Default;
use std::panic;
use std::rc::Rc;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
@ -320,8 +321,14 @@ impl WorkerGlobalScopeMethods for WorkerGlobalScope {
}
};
match self.runtime.evaluate_script(
self.reflector().get_jsobject(), &source, url.as_str(), 1, rval.handle_mut()) {
let result = self.runtime.evaluate_script(
self.reflector().get_jsobject(), &source, url.as_str(), 1, rval.handle_mut());
if let Some(error) = maybe_take_panic_result() {
panic::resume_unwind(error);
}
match result {
Ok(_) => (),
Err(_) => {
println!("evaluate_script failed");