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add impl RocRefcounted for RocResult

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Luke Boswell 2024-07-15 14:33:19 +10:00
parent 0284248320
commit 45cca34c12
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1 changed files with 26 additions and 0 deletions
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26
crates/roc_std/src/lib.rs
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@ -214,6 +214,32 @@ impl<T, E> RocResult<T, E> {
}
}
impl<T, E> RocRefcounted for RocResult<T, E>
where
T: RocRefcounted,
E: RocRefcounted,
{
fn inc(&mut self) {
unsafe {
match self.tag {
RocResultTag::RocOk => (*self.payload.ok).inc(),
RocResultTag::RocErr => (*self.payload.err).inc(),
}
}
}
fn dec(&mut self) {
unsafe {
match self.tag {
RocResultTag::RocOk => (*self.payload.ok).dec(),
RocResultTag::RocErr => (*self.payload.err).dec(),
}
}
}
fn is_refcounted() -> bool {
T::is_refcounted() || E::is_refcounted()
}
}
impl<T, E> From<RocResult<T, E>> for Result<T, E> {
fn from(roc_result: RocResult<T, E>) -> Self {
use RocResultTag::*;