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| author | Anthony Ramine <nox@nox.paris> | 2020-03-31 22:06:26 +0200 |
|---|---|---|
| committer | Anthony Ramine <nox@nox.paris> | 2020-03-31 22:06:40 +0200 |
| commit | f014da9565a491455c8cf0570a4bde9ec6328c35 (patch) | |
| tree | 988013ec46d959aa220ecdf3850a56c44cccc5d4 /components/script/dom/bindings | |
| parent | 9c8540af5c37c7df2d4c0dff27ca76e36a6e6c02 (diff) | |
| download | servo-f014da9565a491455c8cf0570a4bde9ec6328c35.tar.gz servo-f014da9565a491455c8cf0570a4bde9ec6328c35.zip | |
Introduce LayoutDom::is
Just like Castable::is.
Diffstat (limited to 'components/script/dom/bindings')
| -rw-r--r-- | components/script/dom/bindings/root.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/components/script/dom/bindings/root.rs b/components/script/dom/bindings/root.rs index 9f571f1379c..4f4d376e951 100644 --- a/components/script/dom/bindings/root.rs +++ b/components/script/dom/bindings/root.rs @@ -441,6 +441,15 @@ where debug_assert!(thread_state::get().is_layout()); self.value.downcast::<U>().map(|value| LayoutDom { value }) } + + /// Returns whether this inner object is a U. + pub fn is<U>(&self) -> bool + where + U: DerivedFrom<T>, + { + debug_assert!(thread_state::get().is_layout()); + self.value.is::<U>() + } } impl<T> LayoutDom<'_, T> |