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script: make Error::to_jsval safe (#35411)

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Signed-off-by: Stephen Muss <stephenmuss@gmail.com>
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Stephen Muss 2025-02-11 10:47:31 +11:00 • committed by GitHub
parent 8486e585f5
commit cb588bab6a
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8 changed files with 41 additions and 64 deletions
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20
components/script/dom/bindings/error.rs
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@ -11,9 +11,7 @@ use backtrace::Backtrace;
use js::error::{throw_range_error, throw_type_error};
#[cfg(feature = "js_backtrace")]
use js::jsapi::StackFormat as JSStackFormat;
use js::jsapi::{
ExceptionStackBehavior, JSContext, JS_ClearPendingException, JS_IsExceptionPending,
};
use js::jsapi::{ExceptionStackBehavior, JS_ClearPendingException, JS_IsExceptionPending};
use js::jsval::UndefinedValue;
use js::rust::wrappers::{JS_ErrorFromException, JS_GetPendingException, JS_SetPendingException};
use js::rust::{HandleObject, HandleValue, MutableHandleValue};
@ -341,19 +339,21 @@ pub(crate) fn throw_constructor_without_new(cx: SafeJSContext, name: &str) {
impl Error {
/// Convert this error value to a JS value, consuming it in the process.
#[allow(clippy::wrong_self_convention)]
pub(crate) unsafe fn to_jsval(
pub(crate) fn to_jsval(
self,
cx: *mut JSContext,
cx: SafeJSContext,
global: &GlobalScope,
rval: MutableHandleValue,
) {
match self {
Error::JSFailed => (),
_ => assert!(!JS_IsExceptionPending(cx)),
_ => unsafe { assert!(!JS_IsExceptionPending(*cx)) },
}
throw_dom_exception(cx, global, self);
unsafe {
assert!(JS_IsExceptionPending(*cx));
assert!(JS_GetPendingException(*cx, rval));
JS_ClearPendingException(*cx);
}
throw_dom_exception(SafeJSContext::from_ptr(cx), global, self);
assert!(JS_IsExceptionPending(cx));
assert!(JS_GetPendingException(cx, rval));
JS_ClearPendingException(cx);
}
}