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Diffstat (limited to 'src/libs/intertrait/cast_box.rs')
-rw-r--r-- | src/libs/intertrait/cast_box.rs | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/libs/intertrait/cast_box.rs b/src/libs/intertrait/cast_box.rs deleted file mode 100644 index b2ec77e..0000000 --- a/src/libs/intertrait/cast_box.rs +++ /dev/null @@ -1,32 +0,0 @@ -/** - * Originally from Intertrait by CodeChain - * - * <https://github.com/CodeChain-io/intertrait> - * <https://crates.io/crates/intertrait/0.2.2> - * - * Licensed under either of - * - * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>) - * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>) - - * at your option. -*/ -use crate::libs::intertrait::{caster, CastFrom}; - -pub trait CastBox -{ - /// Casts a box to this trait into that of `Trait`. If fails, returns the receiver. - fn cast<Trait: ?Sized + 'static>(self: Box<Self>) -> Result<Box<Trait>, Box<Self>>; -} - -/// A blanket implementation of `CastBox` for traits extending `CastFrom`. -impl<CastableFrom: ?Sized + CastFrom> CastBox for CastableFrom -{ - fn cast<Trait: ?Sized + 'static>(self: Box<Self>) -> Result<Box<Trait>, Box<Self>> - { - match caster::<Trait>((*self).type_id()) { - Some(caster) => Ok((caster.cast_box)(self.box_any())), - None => Err(self), - } - } -} |