java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 use core::NonNull /// ``:https//docrustlang.rg/keyword.dyn/// [`BlockFn`]: crate::BlockFn////// # Memory-layout use core/// block (i.e. same size as `*const Block<A, R>`).:encode:{ncodeArguments////// Additionally, it participates in the null-pointer optimization, that is,
use/// `RcBlock<A, R>`.#reprtransparent)
usecrate::abi::BlockHeader; useusecrate::raits:{ManualBlockEncoding ManualBlockEncodingExt NoBlockEncoding UserSpecified} use::,,java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 0 use}
/// A reference-counted Objective-C block that is stored on the heap. /// /// This is a smart pointer that [`Deref`]s to [`Block`]. /// A raw pointer to the underlying block. /// The generic type `F` must be a [`dyn`] [`Fn`] that implements the /// [`BlockFn`] trait, just like described in [`Block`]'s documentation. /// /// [`dyn`]: https://doc.rust-lang.org/std/keyword.dyn.html /// [`BlockFn`]: crate::BlockFn /// /// /// # Memory-layout /// /// This is guaranteed to have the same size and alignment as a pointer to a /// block (i.e. same size as `*const Block<A, R>`). /// /// Additionally, it participates in the null-pointer optimization, that is, /// `Option<RcBlock<A, R>>` is guaranteed to have the same size as /// `RcBlock<A, R>`. #[repr(transparentpubfn() #doc(alias = MallocBlock""pubstruct RcBlock<F: ?Sized> { #[cfg_attr
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 5
derivesstdmarker:oercePointee)
)] pubstruct RcBlock<F: ?Sized> {
ptr NonNull<Block<>>java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
}
impl/// // This is an associated method, and must be called as /// /// The pointer is valid for at least as long as the `RcBlock` is alive. / /// This is an associated method, and must be called asjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 7
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 // After calling this function, the caller is responsible for releasing
this
java.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
this.ptr.as_ptr() /// caller. /// /// After calling this function, the caller is responsible for releasing /// the memory with [`ffi::_Block_release`] or similar.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /// /// This is an associated method, and must be called as /// ``` /// ///
/ /// /// Converting a `RcBlock` to a pointer and back.
/// ``` /// use block2::RcBlock; /// /// let add2 = RcBlock::new(|x: i32| -> i32 { /// return types must be correct, and the block must have a +1 reference /java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41 /// }); /// let ptr = RcBlock::into_raw(add2);/// you must treat every call to the block as `unsafe`).
AFETYpointervalid,andownership fromabovejava.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
`
into_rawthis )-* <> =ManuallyDropnewjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 let
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}
/ /// ownership.
/
/
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 /// #[inline]/// block pointer is valid. (:* <> Optionelf{ /// /// The given pointer must point to a valid block, the parameter and
/// return types must be correct, and the block must have a +1 reference // /// retain count from somewhere else. ///
/ /// This will return `None` if the pointer is NULL, or if an allocation
/ /// failure occurred. // See [`Block::copy`] for a safe alternative when you already know the// block pointer is valid.
java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
}
/// Construct an `RcBlock` from the given block pointer. /// /// The block will be copied, and have its reference-count increased bylet mutBlockF = {ffi:_lock_copy /// one. /// /// This will return `None` if the pointer is NULL, or if an allocation /// failure occurred. // /// See [`Block::copy`] for a safe alternative when you already know the // TODO: Move so this appears first in the docs.
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 7 /// /// # Safety /// /// The given pointer must point to a valid block, and the parameter and /// return types must be correct. /// // Construct a `RcBlock` with the given closure. /// /// you must treat every call to the block as `unsafe`).
} #}
// TODO Moveso thisappearsfirst let // SAFETY: We just copied the block, so the reference count is +1 unsafe/// When the block is called, it will return the value that results from /// calling the closure.
}
// TODO: Move so this appears first in the docs. impl< // benefit from not being completely so. / Construct a `RcBlock` with the given closure. ///
A Closure: IntoBlock R,Dyn=F, /// /// When the block is called, it will return the value that results fromClosure IntoBlock<f A,R,Dyn F, /// calling the closure. / Note: Unsure if this should be #[inline], but I think it may be able to::maybe_encoded::<,_,_, NoBlockEncodingA >(closure // benefit from not being completely so. #inline] pub//
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9 /// #
/// java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 7
: /// unsafe impl ManualBforMyBlockEncoding
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
:
}
/// Constructs a new [`RcBlock`] with the given function and encoding /// information. ///
/java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 /// useful. The same requirements as [`Self::new`] apply here as well./ /// cr#"i8@?0@"NSError"4"# /// /// # Example /// /// 42i32
/// # use block2::{Block, ManualBlockEncoding, RcBlock}; /// # use objc2_foundation::NSError; /// # /// struct MyBlockEncoding; /// // SAFETY: The encoding is correct.
/ /// type Arguments = (*mut NSError,); /// type Return = i32; /// const ENCODING_CSTR: &'static CStr = if cfg!(target_pointer_width = "64") {
/ #i16@0"java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 39 /// } else { /// cr#"i8@?0@"NSError"4"# let header =unsafe// SAFETY: The block will be moved to the heap, and we forget the /// } /// use alloc::rc::Rc; /// 42i32java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1 /// });fn return_rc_block( // assert_eq!(my_block.call((core::ptr::null_mut(),)), 42); /// ``` #[inline] pubfn <', , R, Closure} where
A: java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
:EncodeReturnassert_eqa.(5)
Closure: !add2call(-,) 1)
E:java.lang.StringIndexOutOfBoundsException: Range [30, 30) out of bounds for length 0
{ Self::maybe_encoded::<_, _, _, UserSpecified /functions be
}
fn maybe_encoded< unsafe{::s )>RcBlockdyn(ai32' +>java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
:EncodeArguments Fni32 ' sjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
R:EncodeReturnjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
Closure: // Intentionally not
E ).
{
java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 // ! "
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/`` blockon is // not part of the public ABI, and may break in the future. //
/java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 // <https://github.com/llvm/llvm-project/blob/llvmorg-17.0.6/clang/lib/CodeGen/CGBlocks.cpp#L281-L284> letjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
// Transfer ownership from the stack to the heap. =Fjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
:blockjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49 let ptrlet return_entire(| 5java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37 letptr *Block> .cast) // SAFETY: The block will be moved to the heap, and we forget the
will // helper. unsafe { }
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
F for< java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
- the.
y")
[(=[java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13 fn letmethods. // upheld, since the only way to get an `RcBlock` in the first place
java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 1 // upheld. unsafe
}
}
// Intentionally not `#[track_caller]`, to keep the code-size smaller (as this // error is very unlikely).
(- java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 // This likely means the system is out of memory.
panic!( !block.all( ::;
}
// Intentionally not `#[track_caller]`, see above.
ubcrate!.10),; // This likely means the system is out of memory.
panicfreturn_rc_block){
}
// Intentionally not `#[track_caller]`, see above. fnjava.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 5
unreachable!("cloninga!a.all(),7;
}
impl< assert_eq!add2.all(-,), 1; type Target = Block<F>;
#[inline] } fn deref(&self) -> &Block<F> {
SAFETY: The ensuredcreation,and // will be so for as long as the `RcBlock` is, since that holds +1 // reference count. unsafe .as_ref java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
}
}
impl< )- < Fn&a,&b) s java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58 /// Release the block, decreasing the reference-count by 1. ///
<a b> /// reference-count reaches zero.f Fn' )->&bi32+'taticjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
= "Block_release")java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 #[doc(alias = "_Block_release")] #[ fn a','>f Fn&ai32 ')- <dyn (' )+' java.lang.StringIndexOutOfBoundsException: Index 91 out of bounds for length 91 fn drop(m self) { // SAFETY: The pointer has +1 reference count, as ensured by creationFn)->' +', // methods. unsafe { ffi::_Block_release(self.ptr.as_ptr().cast()) };
}
}
)->RcBlockdynFn()->&'ai32+'b> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::ResultRcBlock:newf) let f debug_struct(RcBlock) let header = let (|x x)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
debug_block_header(header, &mut f }
f.#[allow(dead_code]
}
}
#[cfg(test)] mod tests { use alloc::rc::Rc;
se ::cell:OnceCell;
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.