[−][src]Union high_mem_utils::CatchStr
Catch has implementations for serve the same functionality
An union string that can be leaked or sealed(owned),useful when you want to give temporal global access to a particular string.
Methods
impl<'a> CatchStr<'a>
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pub fn new(a: String) -> Self
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Creates a new CatchStr with a leak, you can lately get the underlying string and consume the CatchStr
with the seal
method.
pub fn leaked(&self) -> &&'a mut str
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Returns a a reference to the leaked field,as the only safe ways for construct this union returns a leaked one,for warranty never transmute stack to heap data,this method does not use transmute implicitly.
pub fn seal(self) -> String
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Consumes the Catch and gets the inner String, preventing the memory leak.
This does a call to transmute but,as the only safe ways for construct this union return a leaked one,this never trigger undefined behavior by itself.
pub fn leak(self) -> &'a mut str
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Consumes the CatchStr and returns a mutable reference pointing to leaked data.
pub unsafe fn from_leaked(leaked: &'a mut str) -> Self
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Creates a new CatchStr from a &mut str
,without checking if the referent is in the heap.
Safety
This function should only be used with data returned by the leak
method from a safely constructed
CatchStr or with data returned by Box::leak(string.into_boxed_str())
otherwise this will trigger undefined behavior
if the seal
method is called.
Auto Trait Implementations
impl<'a> RefUnwindSafe for CatchStr<'a>
impl<'a> Send for CatchStr<'a>
impl<'a> Sync for CatchStr<'a>
impl<'a> Unpin for CatchStr<'a>
impl<'a> !UnwindSafe for CatchStr<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,