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Use safe JSContext as first argument for throw_dom_exception

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This commit is contained in:
marmeladema 2019-07-27 19:36:21 +01:00
parent 6c26518f61
commit 0703a1ad6d
6 changed files with 29 additions and 25 deletions
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35
components/script/dom/bindings/error.rs
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@ -15,6 +15,7 @@ use crate::dom::bindings::conversions::{
use crate::dom::bindings::str::USVString;
use crate::dom::domexception::{DOMErrorName, DOMException};
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::JSContext as SafeJSContext;
#[cfg(feature = "js_backtrace")]
use backtrace::Backtrace;
use js::error::{throw_range_error, throw_type_error};
@ -104,10 +105,10 @@ pub type Fallible<T> = Result<T, Error>;
pub type ErrorResult = Fallible<()>;
/// Set a pending exception for the given `result` on `cx`.
pub unsafe fn throw_dom_exception(cx: *mut JSContext, global: &GlobalScope, result: Error) {
pub fn throw_dom_exception(cx: SafeJSContext, global: &GlobalScope, result: Error) {
#[cfg(feature = "js_backtrace")]
{
capture_stack!(in(cx) let stack);
capture_stack!(in(*cx) let stack);
let js_stack = stack.and_then(|s| s.as_string(None));
let rust_stack = Backtrace::new();
LAST_EXCEPTION_BACKTRACE.with(|backtrace| {
@ -139,27 +140,29 @@ pub unsafe fn throw_dom_exception(cx: *mut JSContext, global: &GlobalScope, resu
Error::InvalidModification => DOMErrorName::InvalidModificationError,
Error::NotReadable => DOMErrorName::NotReadableError,
Error::Operation => DOMErrorName::OperationError,
Error::Type(message) => {
assert!(!JS_IsExceptionPending(cx));
throw_type_error(cx, &message);
Error::Type(message) => unsafe {
assert!(!JS_IsExceptionPending(*cx));
throw_type_error(*cx, &message);
return;
},
Error::Range(message) => {
assert!(!JS_IsExceptionPending(cx));
throw_range_error(cx, &message);
Error::Range(message) => unsafe {
assert!(!JS_IsExceptionPending(*cx));
throw_range_error(*cx, &message);
return;
},
Error::JSFailed => {
assert!(JS_IsExceptionPending(cx));
Error::JSFailed => unsafe {
assert!(JS_IsExceptionPending(*cx));
return;
},
};
assert!(!JS_IsExceptionPending(cx));
let exception = DOMException::new(global, code);
rooted!(in(cx) let mut thrown = UndefinedValue());
exception.to_jsval(cx, thrown.handle_mut());
JS_SetPendingException(cx, thrown.handle());
unsafe {
assert!(!JS_IsExceptionPending(*cx));
let exception = DOMException::new(global, code);
rooted!(in(*cx) let mut thrown = UndefinedValue());
exception.to_jsval(*cx, thrown.handle_mut());
JS_SetPendingException(*cx, thrown.handle());
}
}
/// A struct encapsulating information about a runtime script error.
@ -310,7 +313,7 @@ impl Error {
Error::JSFailed => (),
_ => assert!(!JS_IsExceptionPending(cx)),
}
throw_dom_exception(cx, global, self);
throw_dom_exception(SafeJSContext::from_ptr(cx), global, self);
assert!(JS_IsExceptionPending(cx));
assert!(JS_GetPendingException(cx, rval));
JS_ClearPendingException(cx);