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add assert_crate_local method to ClearCrossCrate

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This commit is contained in:
Niko Matsakis 2018-07-03 06:50:54 -04:00
parent 37db94d3f2
commit 351e78de26
1 changed files with 9 additions and 0 deletions
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9
src/librustc/mir/mod.rs
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@ -380,6 +380,15 @@ pub enum ClearCrossCrate<T> {
Set(T),
}
impl<T> ClearCrossCrate<T> {
pub fn assert_crate_local(self) -> T {
match self {
ClearCrossCrate::Clear => bug!("unwrapping cross-crate data"),
ClearCrossCrate::Set(v) => v,
}
}
}
impl<T: serialize::Encodable> serialize::UseSpecializedEncodable for ClearCrossCrate<T> {}
impl<T: serialize::Decodable> serialize::UseSpecializedDecodable for ClearCrossCrate<T> {}