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identifiers: Consolidate unsafe code

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This commit is contained in:
Jonas Platte 2021-11-26 20:41:59 +01:00
parent 9ed75241a6
commit 87194d5bf9
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GPG Key ID: CC154DE0E30B7C67
1 changed files with 10 additions and 2 deletions
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12
crates/ruma-identifiers/src/macros.rs
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@ -35,6 +35,14 @@ macro_rules! opaque_identifier_common_impls {
unsafe { Box::from_raw(Box::into_raw(s) as _) } unsafe { Box::from_raw(Box::into_raw(s) as _) }
} }
pub(super) fn from_rc(s: std::rc::Rc<str>) -> std::rc::Rc<Self> {
unsafe { std::rc::Rc::from_raw(std::rc::Rc::into_raw(s) as _) }
}
pub(super) fn from_arc(s: std::sync::Arc<str>) -> std::sync::Arc<Self> {
unsafe { std::sync::Arc::from_raw(std::sync::Arc::into_raw(s) as _) }
}
pub(super) fn into_owned(self: Box<Self>) -> Box<str> { pub(super) fn into_owned(self: Box<Self>) -> Box<str> {
unsafe { Box::from_raw(Box::into_raw(self) as _) } unsafe { Box::from_raw(Box::into_raw(self) as _) }
} }
@ -89,14 +97,14 @@ macro_rules! opaque_identifier_common_impls {
impl From<&$id> for std::rc::Rc<$id> { impl From<&$id> for std::rc::Rc<$id> {
fn from(s: &$id) -> std::rc::Rc<$id> { fn from(s: &$id) -> std::rc::Rc<$id> {
let rc = std::rc::Rc::<str>::from(s.as_str()); let rc = std::rc::Rc::<str>::from(s.as_str());
unsafe { std::rc::Rc::from_raw(std::rc::Rc::into_raw(rc) as *const $id) } <$id>::from_rc(rc)
} }
} }
impl From<&$id> for std::sync::Arc<$id> { impl From<&$id> for std::sync::Arc<$id> {
fn from(s: &$id) -> std::sync::Arc<$id> { fn from(s: &$id) -> std::sync::Arc<$id> {
let arc = std::sync::Arc::<str>::from(s.as_str()); let arc = std::sync::Arc::<str>::from(s.as_str());
unsafe { std::sync::Arc::from_raw(std::sync::Arc::into_raw(arc) as *const $id) } <$id>::from_arc(arc)
} }
} }