glib/collections/
ptr_slice.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::{fmt, marker::PhantomData, mem, ptr};
4
5use crate::{ffi, translate::*};
6
7// rustdoc-stripper-ignore-next
8/// Minimum size of the `PtrSlice` allocation.
9const MIN_SIZE: usize = 16;
10
11// rustdoc-stripper-ignore-next
12/// Slice of elements of type `T` allocated by the GLib allocator.
13///
14/// The underlying memory is always `NULL`-terminated. [`Slice<T>`](crate::collections::slice::Slice)
15/// can be used for a non-`NULL`-terminated slice.
16///
17/// This can be used like a `&[T]`, `&mut [T]` and `Vec<T>`.
18pub struct PtrSlice<T: TransparentPtrType> {
19    ptr: ptr::NonNull<<T as GlibPtrDefault>::GlibType>,
20    // rustdoc-stripper-ignore-next
21    /// Length without the `NULL`-terminator.
22    len: usize,
23    // rustdoc-stripper-ignore-next
24    /// Capacity **with** the `NULL`-terminator, i.e. the actual allocation size.
25    capacity: usize,
26}
27
28impl<T: fmt::Debug + TransparentPtrType> fmt::Debug for PtrSlice<T> {
29    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
30        self.as_slice().fmt(f)
31    }
32}
33
34unsafe impl<T: Send + TransparentPtrType> Send for PtrSlice<T> {}
35
36unsafe impl<T: Sync + TransparentPtrType> Sync for PtrSlice<T> {}
37
38impl<T: PartialEq + TransparentPtrType> PartialEq for PtrSlice<T> {
39    #[inline]
40    fn eq(&self, other: &Self) -> bool {
41        self.as_slice() == other.as_slice()
42    }
43}
44
45impl<T: Eq + TransparentPtrType> Eq for PtrSlice<T> {}
46
47impl<T: PartialOrd + TransparentPtrType> PartialOrd for PtrSlice<T> {
48    #[inline]
49    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
50        self.as_slice().partial_cmp(other.as_slice())
51    }
52}
53
54impl<T: Ord + TransparentPtrType> Ord for PtrSlice<T> {
55    #[inline]
56    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
57        self.as_slice().cmp(other.as_slice())
58    }
59}
60
61impl<T: std::hash::Hash + TransparentPtrType> std::hash::Hash for PtrSlice<T> {
62    #[inline]
63    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
64        self.as_slice().hash(state)
65    }
66}
67
68impl<T: PartialEq + TransparentPtrType> PartialEq<[T]> for PtrSlice<T> {
69    #[inline]
70    fn eq(&self, other: &[T]) -> bool {
71        self.as_slice() == other
72    }
73}
74
75impl<T: PartialEq + TransparentPtrType> PartialEq<PtrSlice<T>> for [T] {
76    #[inline]
77    fn eq(&self, other: &PtrSlice<T>) -> bool {
78        self == other.as_slice()
79    }
80}
81
82impl<T: TransparentPtrType> Drop for PtrSlice<T> {
83    #[inline]
84    fn drop(&mut self) {
85        unsafe {
86            if mem::needs_drop::<T>() {
87                for i in 0..self.len {
88                    ptr::drop_in_place::<T>(self.ptr.as_ptr().add(i) as *mut T);
89                }
90            }
91
92            if self.capacity != 0 {
93                ffi::g_free(self.ptr.as_ptr() as ffi::gpointer);
94            }
95        }
96    }
97}
98
99impl<T: TransparentPtrType> AsRef<[T]> for PtrSlice<T> {
100    #[inline]
101    fn as_ref(&self) -> &[T] {
102        self.as_slice()
103    }
104}
105
106impl<T: TransparentPtrType> AsMut<[T]> for PtrSlice<T> {
107    #[inline]
108    fn as_mut(&mut self) -> &mut [T] {
109        self.as_mut_slice()
110    }
111}
112
113impl<T: TransparentPtrType> std::borrow::Borrow<[T]> for PtrSlice<T> {
114    #[inline]
115    fn borrow(&self) -> &[T] {
116        self.as_slice()
117    }
118}
119
120impl<T: TransparentPtrType> std::borrow::BorrowMut<[T]> for PtrSlice<T> {
121    #[inline]
122    fn borrow_mut(&mut self) -> &mut [T] {
123        self.as_mut_slice()
124    }
125}
126
127impl<T: TransparentPtrType> std::ops::Deref for PtrSlice<T> {
128    type Target = [T];
129
130    #[inline]
131    fn deref(&self) -> &[T] {
132        self.as_slice()
133    }
134}
135
136impl<T: TransparentPtrType> std::ops::DerefMut for PtrSlice<T> {
137    #[inline]
138    fn deref_mut(&mut self) -> &mut [T] {
139        self.as_mut_slice()
140    }
141}
142
143impl<T: TransparentPtrType> Default for PtrSlice<T> {
144    #[inline]
145    fn default() -> Self {
146        Self::new()
147    }
148}
149
150impl<T: TransparentPtrType> std::iter::Extend<T> for PtrSlice<T> {
151    #[inline]
152    fn extend<I: IntoIterator<Item = T>>(&mut self, iter: I) {
153        let iter = iter.into_iter();
154        self.reserve(iter.size_hint().0);
155
156        for item in iter {
157            self.push(item);
158        }
159    }
160}
161
162impl<'a, T: TransparentPtrType + 'a> std::iter::Extend<&'a T> for PtrSlice<T> {
163    #[inline]
164    fn extend<I: IntoIterator<Item = &'a T>>(&mut self, iter: I) {
165        let iter = iter.into_iter();
166        self.reserve(iter.size_hint().0);
167
168        for item in iter {
169            self.push(item.clone());
170        }
171    }
172}
173
174impl<T: TransparentPtrType> std::iter::FromIterator<T> for PtrSlice<T> {
175    #[inline]
176    fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self {
177        let iter = iter.into_iter();
178        let mut s = Self::with_capacity(iter.size_hint().0);
179        for item in iter {
180            s.push(item);
181        }
182        s
183    }
184}
185
186impl<'a, T: TransparentPtrType> std::iter::IntoIterator for &'a PtrSlice<T> {
187    type Item = &'a T;
188    type IntoIter = std::slice::Iter<'a, T>;
189
190    #[inline]
191    fn into_iter(self) -> Self::IntoIter {
192        self.as_slice().iter()
193    }
194}
195
196impl<'a, T: TransparentPtrType> std::iter::IntoIterator for &'a mut PtrSlice<T> {
197    type Item = &'a mut T;
198    type IntoIter = std::slice::IterMut<'a, T>;
199
200    #[inline]
201    fn into_iter(self) -> Self::IntoIter {
202        self.as_mut_slice().iter_mut()
203    }
204}
205
206impl<T: TransparentPtrType> std::iter::IntoIterator for PtrSlice<T> {
207    type Item = T;
208    type IntoIter = IntoIter<T>;
209
210    #[inline]
211    fn into_iter(self) -> Self::IntoIter {
212        IntoIter::new(self)
213    }
214}
215
216pub struct IntoIter<T: TransparentPtrType> {
217    ptr: ptr::NonNull<<T as GlibPtrDefault>::GlibType>,
218    idx: ptr::NonNull<<T as GlibPtrDefault>::GlibType>,
219    len: usize,
220    empty: bool,
221}
222
223impl<T: TransparentPtrType> IntoIter<T> {
224    #[inline]
225    fn new(slice: PtrSlice<T>) -> Self {
226        let slice = mem::ManuallyDrop::new(slice);
227        IntoIter {
228            ptr: slice.ptr,
229            idx: slice.ptr,
230            len: slice.len,
231            empty: slice.capacity == 0,
232        }
233    }
234
235    // rustdoc-stripper-ignore-next
236    /// Returns the remaining items as slice.
237    #[inline]
238    pub fn as_slice(&self) -> &[T] {
239        unsafe {
240            if self.len == 0 {
241                &[]
242            } else {
243                std::slice::from_raw_parts(self.idx.as_ptr() as *mut T, self.len)
244            }
245        }
246    }
247
248    // rustdoc-stripper-ignore-next
249    /// Returns the remaining items as mutable slice.
250    #[inline]
251    pub fn as_mut_slice(&mut self) -> &mut [T] {
252        unsafe {
253            if self.len == 0 {
254                &mut []
255            } else {
256                std::slice::from_raw_parts_mut(self.idx.as_ptr() as *mut T, self.len)
257            }
258        }
259    }
260}
261
262impl<T: TransparentPtrType> Drop for IntoIter<T> {
263    #[inline]
264    fn drop(&mut self) {
265        unsafe {
266            if mem::needs_drop::<T>() {
267                for i in 0..self.len {
268                    ptr::drop_in_place::<T>(self.idx.as_ptr().add(i) as *mut T);
269                }
270            }
271
272            if !self.empty {
273                ffi::g_free(self.ptr.as_ptr() as ffi::gpointer);
274            }
275        }
276    }
277}
278
279impl<T: TransparentPtrType> Iterator for IntoIter<T> {
280    type Item = T;
281
282    #[inline]
283    fn next(&mut self) -> Option<Self::Item> {
284        if self.len == 0 {
285            return None;
286        }
287
288        unsafe {
289            let p = self.idx.as_ptr();
290            self.len -= 1;
291            self.idx = ptr::NonNull::new_unchecked(p.add(1));
292            Some(ptr::read(p as *mut T))
293        }
294    }
295
296    #[inline]
297    fn size_hint(&self) -> (usize, Option<usize>) {
298        (self.len, Some(self.len))
299    }
300
301    #[inline]
302    fn count(self) -> usize {
303        self.len
304    }
305
306    #[inline]
307    fn last(mut self) -> Option<T> {
308        if self.len == 0 {
309            None
310        } else {
311            self.len -= 1;
312            Some(unsafe { ptr::read(self.idx.as_ptr().add(self.len) as *mut T) })
313        }
314    }
315}
316
317impl<T: TransparentPtrType> DoubleEndedIterator for IntoIter<T> {
318    #[inline]
319    fn next_back(&mut self) -> Option<T> {
320        if self.len == 0 {
321            None
322        } else {
323            self.len -= 1;
324            Some(unsafe { ptr::read(self.idx.as_ptr().add(self.len) as *mut T) })
325        }
326    }
327}
328
329impl<T: TransparentPtrType> ExactSizeIterator for IntoIter<T> {}
330
331impl<T: TransparentPtrType> std::iter::FusedIterator for IntoIter<T> {}
332
333impl<T: TransparentPtrType> From<PtrSlice<T>> for Vec<T> {
334    #[inline]
335    fn from(mut value: PtrSlice<T>) -> Self {
336        unsafe {
337            let mut s = Vec::with_capacity(value.len);
338            ptr::copy_nonoverlapping(value.ptr.as_ptr() as *const T, s.as_mut_ptr(), value.len);
339            s.set_len(value.len);
340            value.len = 0;
341            s
342        }
343    }
344}
345
346impl<T: TransparentPtrType> From<Vec<T>> for PtrSlice<T> {
347    #[inline]
348    fn from(mut value: Vec<T>) -> Self {
349        unsafe {
350            let mut s = Self::with_capacity(value.len());
351            ptr::copy_nonoverlapping(value.as_ptr(), s.ptr.as_ptr() as *mut T, value.len());
352            s.len = value.len();
353            value.set_len(0);
354            ptr::write(
355                s.ptr.as_ptr().add(s.len),
356                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
357            );
358            s
359        }
360    }
361}
362
363impl<T: TransparentPtrType, const N: usize> From<[T; N]> for PtrSlice<T> {
364    #[inline]
365    fn from(value: [T; N]) -> Self {
366        unsafe {
367            let value = mem::ManuallyDrop::new(value);
368            let len = value.len();
369            let mut s = Self::with_capacity(len);
370            ptr::copy_nonoverlapping(value.as_ptr(), s.ptr.as_ptr() as *mut T, len);
371            s.len = len;
372            ptr::write(
373                s.ptr.as_ptr().add(len),
374                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
375            );
376            s
377        }
378    }
379}
380
381impl<'a, T: TransparentPtrType> From<&'a [T]> for PtrSlice<T> {
382    #[inline]
383    fn from(value: &'a [T]) -> Self {
384        unsafe {
385            let mut s = Self::with_capacity(value.len());
386            for (i, item) in value.iter().enumerate() {
387                ptr::write(s.ptr.as_ptr().add(i) as *mut T, item.clone());
388            }
389            s.len = value.len();
390            ptr::write(
391                s.ptr.as_ptr().add(s.len),
392                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
393            );
394            s
395        }
396    }
397}
398
399impl<'a, T: TransparentPtrType> From<&'a [&'a T]> for PtrSlice<T> {
400    #[inline]
401    fn from(value: &'a [&'a T]) -> Self {
402        unsafe {
403            let mut s = Self::with_capacity(value.len());
404            for (i, item) in value.iter().enumerate() {
405                ptr::write(s.ptr.as_ptr().add(i) as *mut T, (*item).clone());
406            }
407            s.len = value.len();
408            ptr::write(
409                s.ptr.as_ptr().add(s.len),
410                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
411            );
412            s
413        }
414    }
415}
416
417impl<T: TransparentPtrType> Clone for PtrSlice<T> {
418    #[inline]
419    fn clone(&self) -> Self {
420        Self::from(self.as_slice())
421    }
422}
423
424impl<T: TransparentPtrType> PtrSlice<T> {
425    // rustdoc-stripper-ignore-next
426    /// Borrows a C array.
427    #[inline]
428    pub unsafe fn from_glib_borrow<'a>(ptr: *const <T as GlibPtrDefault>::GlibType) -> &'a [T] {
429        let mut len = 0;
430        if !ptr.is_null() {
431            while !(*ptr.add(len)).is_null() {
432                len += 1;
433            }
434        }
435        Self::from_glib_borrow_num(ptr, len)
436    }
437
438    // rustdoc-stripper-ignore-next
439    /// Borrows a C array.
440    #[inline]
441    pub unsafe fn from_glib_borrow_num<'a>(
442        ptr: *const <T as GlibPtrDefault>::GlibType,
443        len: usize,
444    ) -> &'a [T] {
445        debug_assert_eq!(
446            mem::size_of::<T>(),
447            mem::size_of::<<T as GlibPtrDefault>::GlibType>()
448        );
449        debug_assert!(!ptr.is_null() || len == 0);
450
451        if len == 0 {
452            &[]
453        } else {
454            std::slice::from_raw_parts(ptr as *const T, len)
455        }
456    }
457
458    // rustdoc-stripper-ignore-next
459    /// Create a new `PtrSlice` around a C array.
460    #[inline]
461    pub unsafe fn from_glib_none_num(
462        ptr: *const <T as GlibPtrDefault>::GlibType,
463        len: usize,
464        _null_terminated: bool,
465    ) -> Self {
466        debug_assert_eq!(
467            mem::size_of::<T>(),
468            mem::size_of::<<T as GlibPtrDefault>::GlibType>()
469        );
470        debug_assert!(!ptr.is_null() || len == 0);
471
472        if len == 0 {
473            PtrSlice::default()
474        } else {
475            // Need to fully copy the array here.
476            let s = Self::from_glib_borrow_num(ptr, len);
477            Self::from(s)
478        }
479    }
480
481    // rustdoc-stripper-ignore-next
482    /// Create a new `PtrSlice` around a C array.
483    #[inline]
484    pub unsafe fn from_glib_container_num(
485        ptr: *mut <T as GlibPtrDefault>::GlibType,
486        len: usize,
487        null_terminated: bool,
488    ) -> Self {
489        debug_assert_eq!(
490            mem::size_of::<T>(),
491            mem::size_of::<<T as GlibPtrDefault>::GlibType>()
492        );
493        debug_assert!(!ptr.is_null() || len == 0);
494
495        if len == 0 {
496            ffi::g_free(ptr as ffi::gpointer);
497            PtrSlice::default()
498        } else {
499            // Need to clone every item because we don't own it here
500            for i in 0..len {
501                let p = ptr.add(i) as *mut T;
502                let clone: T = (*p).clone();
503                ptr::write(p, clone);
504            }
505
506            // And now it can be handled exactly the same as `from_glib_full_num()`.
507            Self::from_glib_full_num(ptr, len, null_terminated)
508        }
509    }
510
511    // rustdoc-stripper-ignore-next
512    /// Create a new `PtrSlice` around a C array.
513    #[inline]
514    pub unsafe fn from_glib_full_num(
515        ptr: *mut <T as GlibPtrDefault>::GlibType,
516        len: usize,
517        null_terminated: bool,
518    ) -> Self {
519        debug_assert_eq!(
520            mem::size_of::<T>(),
521            mem::size_of::<<T as GlibPtrDefault>::GlibType>()
522        );
523        debug_assert!(!ptr.is_null() || len == 0);
524
525        if len == 0 {
526            ffi::g_free(ptr as ffi::gpointer);
527            PtrSlice::default()
528        } else {
529            if null_terminated {
530                return PtrSlice {
531                    ptr: ptr::NonNull::new_unchecked(ptr),
532                    len,
533                    capacity: len + 1,
534                };
535            }
536
537            // Need to re-allocate here for adding the NULL-terminator
538            let capacity = len + 1;
539            assert_ne!(capacity, 0);
540            let ptr = ffi::g_realloc(
541                ptr as *mut _,
542                mem::size_of::<T>().checked_mul(capacity).unwrap(),
543            ) as *mut <T as GlibPtrDefault>::GlibType;
544
545            ptr::write(
546                ptr.add(len),
547                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
548            );
549
550            PtrSlice {
551                ptr: ptr::NonNull::new_unchecked(ptr),
552                len,
553                capacity,
554            }
555        }
556    }
557
558    // rustdoc-stripper-ignore-next
559    /// Create a new `PtrSlice` around a `NULL`-terminated C array.
560    #[inline]
561    pub unsafe fn from_glib_none(ptr: *const <T as GlibPtrDefault>::GlibType) -> Self {
562        let mut len = 0;
563        if !ptr.is_null() {
564            while !(*ptr.add(len)).is_null() {
565                len += 1;
566            }
567        }
568
569        PtrSlice::from_glib_none_num(ptr, len, true)
570    }
571
572    // rustdoc-stripper-ignore-next
573    /// Create a new `PtrSlice` around a `NULL`-terminated C array.
574    #[inline]
575    pub unsafe fn from_glib_container(ptr: *mut <T as GlibPtrDefault>::GlibType) -> Self {
576        let mut len = 0;
577        if !ptr.is_null() {
578            while !(*ptr.add(len)).is_null() {
579                len += 1;
580            }
581        }
582
583        PtrSlice::from_glib_container_num(ptr, len, true)
584    }
585
586    // rustdoc-stripper-ignore-next
587    /// Create a new `PtrSlice` around a `NULL`-terminated C array.
588    #[inline]
589    pub unsafe fn from_glib_full(ptr: *mut <T as GlibPtrDefault>::GlibType) -> Self {
590        let mut len = 0;
591        if !ptr.is_null() {
592            while !(*ptr.add(len)).is_null() {
593                len += 1;
594            }
595        }
596
597        PtrSlice::from_glib_full_num(ptr, len, true)
598    }
599
600    // rustdoc-stripper-ignore-next
601    /// Creates a new empty slice.
602    #[inline]
603    pub fn new() -> Self {
604        debug_assert_eq!(
605            mem::size_of::<T>(),
606            mem::size_of::<<T as GlibPtrDefault>::GlibType>()
607        );
608
609        PtrSlice {
610            ptr: ptr::NonNull::dangling(),
611            len: 0,
612            capacity: 0,
613        }
614    }
615
616    // rustdoc-stripper-ignore-next
617    /// Creates a new empty slice with the given capacity.
618    #[inline]
619    pub fn with_capacity(capacity: usize) -> Self {
620        let mut s = Self::new();
621        s.reserve(capacity);
622        s
623    }
624
625    // rustdoc-stripper-ignore-next
626    /// Returns the underlying pointer.
627    ///
628    /// This is guaranteed to be `NULL`-terminated.
629    #[inline]
630    pub fn as_ptr(&self) -> *const <T as GlibPtrDefault>::GlibType {
631        if self.len == 0 {
632            static EMPTY: [usize; 1] = [0];
633
634            EMPTY.as_ptr() as *const _
635        } else {
636            self.ptr.as_ptr()
637        }
638    }
639
640    // rustdoc-stripper-ignore-next
641    /// Returns the underlying pointer.
642    ///
643    /// This is guaranteed to be `NULL`-terminated.
644    #[inline]
645    pub fn as_mut_ptr(&mut self) -> *mut <T as GlibPtrDefault>::GlibType {
646        if self.len == 0 {
647            static EMPTY: [usize; 1] = [0];
648
649            EMPTY.as_ptr() as *mut _
650        } else {
651            self.ptr.as_ptr()
652        }
653    }
654
655    // rustdoc-stripper-ignore-next
656    /// Consumes the slice and returns the underlying pointer.
657    ///
658    /// This is guaranteed to be `NULL`-terminated.
659    #[inline]
660    pub fn into_raw(mut self) -> *mut <T as GlibPtrDefault>::GlibType {
661        // Make sure to allocate a valid pointer that points to a
662        // NULL-pointer.
663        if self.len == 0 {
664            self.reserve(0);
665            unsafe {
666                ptr::write(
667                    self.ptr.as_ptr().add(0),
668                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
669                );
670            }
671        }
672
673        self.len = 0;
674        self.capacity = 0;
675        self.ptr.as_ptr()
676    }
677
678    // rustdoc-stripper-ignore-next
679    /// Gets the length of the slice.
680    #[inline]
681    pub fn len(&self) -> usize {
682        self.len
683    }
684
685    // rustdoc-stripper-ignore-next
686    /// Returns `true` if the slice is empty.
687    #[inline]
688    pub fn is_empty(&self) -> bool {
689        self.len == 0
690    }
691
692    // rustdoc-stripper-ignore-next
693    /// Returns the capacity of the slice.
694    ///
695    /// This includes the space that is reserved for the `NULL`-terminator.
696    #[inline]
697    pub fn capacity(&self) -> usize {
698        self.capacity
699    }
700
701    // rustdoc-stripper-ignore-next
702    /// Sets the length of the slice to `len`.
703    ///
704    /// # SAFETY
705    ///
706    /// There must be at least `len` valid items and a `NULL`-terminator after the last item.
707    pub unsafe fn set_len(&mut self, len: usize) {
708        self.len = len;
709    }
710
711    // rustdoc-stripper-ignore-next
712    /// Reserves at least this much additional capacity.
713    #[allow(clippy::int_plus_one)]
714    pub fn reserve(&mut self, additional: usize) {
715        // Nothing new to reserve as there's still enough space
716        if self.len + additional + 1 <= self.capacity {
717            return;
718        }
719
720        let new_capacity =
721            usize::next_power_of_two(std::cmp::max(self.len + additional, MIN_SIZE) + 1);
722        assert_ne!(new_capacity, 0);
723        assert!(new_capacity > self.capacity);
724
725        unsafe {
726            let ptr = if self.capacity == 0 {
727                ptr::null_mut()
728            } else {
729                self.ptr.as_ptr() as *mut _
730            };
731            let new_ptr =
732                ffi::g_realloc(ptr, mem::size_of::<T>().checked_mul(new_capacity).unwrap())
733                    as *mut <T as GlibPtrDefault>::GlibType;
734            if self.capacity == 0 {
735                ptr::write(
736                    new_ptr,
737                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
738                );
739            }
740            self.ptr = ptr::NonNull::new_unchecked(new_ptr);
741            self.capacity = new_capacity;
742        }
743    }
744
745    // rustdoc-stripper-ignore-next
746    /// Borrows this slice as a `&[T]`.
747    #[inline]
748    pub fn as_slice(&self) -> &[T] {
749        unsafe {
750            if self.len == 0 {
751                &[]
752            } else {
753                std::slice::from_raw_parts(self.ptr.as_ptr() as *const T, self.len)
754            }
755        }
756    }
757
758    // rustdoc-stripper-ignore-next
759    /// Borrows this slice as a `&mut [T]`.
760    #[inline]
761    pub fn as_mut_slice(&mut self) -> &mut [T] {
762        unsafe {
763            if self.len == 0 {
764                &mut []
765            } else {
766                std::slice::from_raw_parts_mut(self.ptr.as_ptr() as *mut T, self.len)
767            }
768        }
769    }
770
771    // rustdoc-stripper-ignore-next
772    /// Removes all items from the slice.
773    #[inline]
774    pub fn clear(&mut self) {
775        unsafe {
776            if mem::needs_drop::<T>() {
777                for i in 0..self.len {
778                    ptr::drop_in_place::<T>(self.ptr.as_ptr().add(i) as *mut T);
779                }
780            }
781
782            self.len = 0;
783        }
784    }
785
786    // rustdoc-stripper-ignore-next
787    /// Clones and appends all elements in `slice` to the slice.
788    #[inline]
789    pub fn extend_from_slice(&mut self, other: &[T]) {
790        // Nothing new to reserve as there's still enough space
791        if self.len + other.len() + 1 > self.capacity {
792            self.reserve(other.len());
793        }
794
795        unsafe {
796            for item in other {
797                ptr::write(self.ptr.as_ptr().add(self.len) as *mut T, item.clone());
798                self.len += 1;
799            }
800
801            ptr::write(
802                self.ptr.as_ptr().add(self.len),
803                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
804            );
805        }
806    }
807
808    // rustdoc-stripper-ignore-next
809    /// Inserts `item` at position `index` of the slice, shifting all elements after it to the
810    /// right.
811    #[inline]
812    pub fn insert(&mut self, index: usize, item: T) {
813        assert!(index <= self.len);
814
815        // Nothing new to reserve as there's still enough space
816        if self.len + 1 + 1 > self.capacity {
817            self.reserve(1);
818        }
819
820        unsafe {
821            if index == self.len {
822                ptr::write(self.ptr.as_ptr().add(self.len) as *mut T, item);
823            } else {
824                let p = self.ptr.as_ptr().add(index);
825                ptr::copy(p, p.add(1), self.len - index);
826                ptr::write(self.ptr.as_ptr().add(index) as *mut T, item);
827            }
828
829            self.len += 1;
830
831            ptr::write(
832                self.ptr.as_ptr().add(self.len),
833                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
834            );
835        }
836    }
837
838    // rustdoc-stripper-ignore-next
839    /// Pushes `item` to the end of the slice.
840    #[inline]
841    pub fn push(&mut self, item: T) {
842        // Nothing new to reserve as there's still enough space
843        if self.len + 1 + 1 > self.capacity {
844            self.reserve(1);
845        }
846
847        unsafe {
848            ptr::write(self.ptr.as_ptr().add(self.len) as *mut T, item);
849            self.len += 1;
850
851            ptr::write(
852                self.ptr.as_ptr().add(self.len),
853                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
854            );
855        }
856    }
857
858    // rustdoc-stripper-ignore-next
859    /// Removes item from position `index` of the slice, shifting all elements after it to the
860    /// left.
861    #[inline]
862    pub fn remove(&mut self, index: usize) -> T {
863        assert!(index < self.len);
864
865        unsafe {
866            let p = self.ptr.as_ptr().add(index);
867            let item = ptr::read(p as *mut T);
868            ptr::copy(p.add(1), p, self.len - index - 1);
869
870            self.len -= 1;
871
872            ptr::write(
873                self.ptr.as_ptr().add(self.len),
874                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
875            );
876
877            item
878        }
879    }
880
881    // rustdoc-stripper-ignore-next
882    /// Removes the last item of the slice and returns it.
883    #[inline]
884    pub fn pop(&mut self) -> Option<T> {
885        if self.len == 0 {
886            return None;
887        }
888
889        unsafe {
890            self.len -= 1;
891            let p = self.ptr.as_ptr().add(self.len);
892            let item = ptr::read(p as *mut T);
893
894            ptr::write(
895                self.ptr.as_ptr().add(self.len),
896                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
897            );
898
899            Some(item)
900        }
901    }
902
903    // rustdoc-stripper-ignore-next
904    /// Shortens the slice by keeping the last `len` items.
905    ///
906    /// If there are fewer than `len` items then this has no effect.
907    #[inline]
908    pub fn truncate(&mut self, len: usize) {
909        if self.len <= len {
910            return;
911        }
912
913        unsafe {
914            while self.len > len {
915                self.len -= 1;
916                let p = self.ptr.as_ptr().add(self.len);
917                ptr::drop_in_place::<T>(p as *mut T);
918                ptr::write(
919                    p,
920                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
921                );
922            }
923        }
924    }
925}
926
927impl<T: TransparentPtrType>
928    FromGlibContainer<<T as GlibPtrDefault>::GlibType, *mut <T as GlibPtrDefault>::GlibType>
929    for PtrSlice<T>
930{
931    #[inline]
932    unsafe fn from_glib_none_num(ptr: *mut <T as GlibPtrDefault>::GlibType, num: usize) -> Self {
933        Self::from_glib_none_num(ptr, num, false)
934    }
935
936    #[inline]
937    unsafe fn from_glib_container_num(
938        ptr: *mut <T as GlibPtrDefault>::GlibType,
939        num: usize,
940    ) -> Self {
941        Self::from_glib_container_num(ptr, num, false)
942    }
943
944    #[inline]
945    unsafe fn from_glib_full_num(ptr: *mut <T as GlibPtrDefault>::GlibType, num: usize) -> Self {
946        Self::from_glib_full_num(ptr, num, false)
947    }
948}
949
950impl<T: TransparentPtrType>
951    FromGlibContainer<<T as GlibPtrDefault>::GlibType, *const <T as GlibPtrDefault>::GlibType>
952    for PtrSlice<T>
953{
954    unsafe fn from_glib_none_num(ptr: *const <T as GlibPtrDefault>::GlibType, num: usize) -> Self {
955        Self::from_glib_none_num(ptr, num, false)
956    }
957
958    unsafe fn from_glib_container_num(
959        _ptr: *const <T as GlibPtrDefault>::GlibType,
960        _num: usize,
961    ) -> Self {
962        unimplemented!();
963    }
964
965    unsafe fn from_glib_full_num(
966        _ptr: *const <T as GlibPtrDefault>::GlibType,
967        _num: usize,
968    ) -> Self {
969        unimplemented!();
970    }
971}
972
973impl<T: TransparentPtrType>
974    FromGlibPtrContainer<<T as GlibPtrDefault>::GlibType, *mut <T as GlibPtrDefault>::GlibType>
975    for PtrSlice<T>
976{
977    #[inline]
978    unsafe fn from_glib_none(ptr: *mut <T as GlibPtrDefault>::GlibType) -> Self {
979        Self::from_glib_none(ptr)
980    }
981
982    #[inline]
983    unsafe fn from_glib_container(ptr: *mut <T as GlibPtrDefault>::GlibType) -> Self {
984        Self::from_glib_container(ptr)
985    }
986
987    #[inline]
988    unsafe fn from_glib_full(ptr: *mut <T as GlibPtrDefault>::GlibType) -> Self {
989        Self::from_glib_full(ptr)
990    }
991}
992
993impl<T: TransparentPtrType>
994    FromGlibPtrContainer<<T as GlibPtrDefault>::GlibType, *const <T as GlibPtrDefault>::GlibType>
995    for PtrSlice<T>
996{
997    #[inline]
998    unsafe fn from_glib_none(ptr: *const <T as GlibPtrDefault>::GlibType) -> Self {
999        Self::from_glib_none(ptr)
1000    }
1001
1002    unsafe fn from_glib_container(_ptr: *const <T as GlibPtrDefault>::GlibType) -> Self {
1003        unimplemented!();
1004    }
1005
1006    unsafe fn from_glib_full(_ptr: *const <T as GlibPtrDefault>::GlibType) -> Self {
1007        unimplemented!();
1008    }
1009}
1010
1011impl<'a, T: TransparentPtrType + 'a> ToGlibPtr<'a, *mut <T as GlibPtrDefault>::GlibType>
1012    for PtrSlice<T>
1013{
1014    type Storage = PhantomData<&'a Self>;
1015
1016    #[inline]
1017    fn to_glib_none(&'a self) -> Stash<'a, *mut <T as GlibPtrDefault>::GlibType, Self> {
1018        Stash(self.as_ptr() as *mut _, PhantomData)
1019    }
1020
1021    #[inline]
1022    fn to_glib_container(&'a self) -> Stash<'a, *mut <T as GlibPtrDefault>::GlibType, Self> {
1023        unsafe {
1024            let ptr = ffi::g_malloc(mem::size_of::<T>().checked_mul(self.len() + 1).unwrap())
1025                as *mut <T as GlibPtrDefault>::GlibType;
1026            ptr::copy_nonoverlapping(self.as_ptr(), ptr, self.len() + 1);
1027            Stash(ptr, PhantomData)
1028        }
1029    }
1030
1031    #[inline]
1032    fn to_glib_full(&self) -> *mut <T as GlibPtrDefault>::GlibType {
1033        self.clone().into_raw()
1034    }
1035}
1036
1037impl<'a, T: TransparentPtrType + 'a> ToGlibPtr<'a, *const <T as GlibPtrDefault>::GlibType>
1038    for PtrSlice<T>
1039{
1040    type Storage = PhantomData<&'a Self>;
1041
1042    #[inline]
1043    fn to_glib_none(&'a self) -> Stash<'a, *const <T as GlibPtrDefault>::GlibType, Self> {
1044        Stash(self.as_ptr(), PhantomData)
1045    }
1046}
1047
1048impl<'a, T: TransparentPtrType + 'a> ToGlibPtrMut<'a, *mut <T as GlibPtrDefault>::GlibType>
1049    for PtrSlice<T>
1050{
1051    type Storage = PhantomData<&'a mut Self>;
1052
1053    #[inline]
1054    fn to_glib_none_mut(&'a mut self) -> StashMut<'a, *mut <T as GlibPtrDefault>::GlibType, Self> {
1055        StashMut(self.as_mut_ptr(), PhantomData)
1056    }
1057}
1058
1059impl<T: TransparentPtrType> IntoGlibPtr<*mut <T as GlibPtrDefault>::GlibType> for PtrSlice<T> {
1060    #[inline]
1061    unsafe fn into_glib_ptr(self) -> *mut <T as GlibPtrDefault>::GlibType {
1062        self.into_raw()
1063    }
1064}
1065
1066impl<T: TransparentPtrType> From<super::Slice<T>> for PtrSlice<T> {
1067    fn from(value: super::Slice<T>) -> Self {
1068        let len = value.len();
1069        let capacity = value.capacity();
1070        unsafe {
1071            let ptr = value.into_raw();
1072            let mut s = PtrSlice::<T> {
1073                ptr: ptr::NonNull::new_unchecked(ptr),
1074                len,
1075                capacity,
1076            };
1077
1078            // Reserve space for the `NULL`-terminator if needed
1079            if len == capacity {
1080                s.reserve(0);
1081            }
1082
1083            ptr::write(
1084                s.ptr.as_ptr().add(s.len()),
1085                Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
1086            );
1087
1088            s
1089        }
1090    }
1091}
1092
1093// rustdoc-stripper-ignore-next
1094/// A trait to accept both `&[T]` or `PtrSlice<T>` as an argument.
1095pub trait IntoPtrSlice<T: TransparentPtrType> {
1096    // rustdoc-stripper-ignore-next
1097    /// Runs the given closure with a `NULL`-terminated array.
1098    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R;
1099}
1100
1101impl<T: TransparentPtrType> IntoPtrSlice<T> for PtrSlice<T> {
1102    #[inline]
1103    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R {
1104        <&Self>::run_with_ptr_slice(&self, f)
1105    }
1106}
1107
1108impl<T: TransparentPtrType> IntoPtrSlice<T> for &'_ PtrSlice<T> {
1109    #[inline]
1110    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R {
1111        f(unsafe { std::slice::from_raw_parts(self.as_ptr() as *mut _, self.len() + 1) })
1112    }
1113}
1114
1115// rustdoc-stripper-ignore-next
1116/// Maximum number of pointers to stack-allocate before falling back to a heap allocation.
1117const MAX_STACK_ALLOCATION: usize = 16;
1118
1119impl<T: TransparentPtrType> IntoPtrSlice<T> for Vec<T> {
1120    #[inline]
1121    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R {
1122        if self.len() < MAX_STACK_ALLOCATION {
1123            unsafe {
1124                let mut s = mem::MaybeUninit::<
1125                    [<T as GlibPtrDefault>::GlibType; MAX_STACK_ALLOCATION],
1126                >::uninit();
1127                let ptr = s.as_mut_ptr() as *mut <T as GlibPtrDefault>::GlibType;
1128                ptr::copy_nonoverlapping(
1129                    self.as_ptr() as *mut <T as GlibPtrDefault>::GlibType,
1130                    ptr,
1131                    self.len(),
1132                );
1133                ptr::write(
1134                    ptr.add(self.len()),
1135                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
1136                );
1137                f(std::slice::from_raw_parts(ptr, self.len() + 1))
1138            }
1139        } else {
1140            PtrSlice::<T>::from(self).run_with_ptr_slice(f)
1141        }
1142    }
1143}
1144
1145impl<T: TransparentPtrType, const N: usize> IntoPtrSlice<T> for [T; N] {
1146    #[inline]
1147    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R {
1148        if self.len() < MAX_STACK_ALLOCATION {
1149            unsafe {
1150                let mut s = mem::MaybeUninit::<
1151                    [<T as GlibPtrDefault>::GlibType; MAX_STACK_ALLOCATION],
1152                >::uninit();
1153                let ptr = s.as_mut_ptr() as *mut <T as GlibPtrDefault>::GlibType;
1154                ptr::copy_nonoverlapping(
1155                    self.as_ptr() as *mut <T as GlibPtrDefault>::GlibType,
1156                    ptr,
1157                    self.len(),
1158                );
1159                ptr::write(
1160                    ptr.add(self.len()),
1161                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
1162                );
1163                f(std::slice::from_raw_parts(ptr, self.len() + 1))
1164            }
1165        } else {
1166            PtrSlice::<T>::from(self).run_with_ptr_slice(f)
1167        }
1168    }
1169}
1170
1171impl<T: TransparentPtrType> IntoPtrSlice<T> for &'_ [T] {
1172    #[inline]
1173    fn run_with_ptr_slice<R, F: FnOnce(&[<T as GlibPtrDefault>::GlibType]) -> R>(self, f: F) -> R {
1174        if self.len() < MAX_STACK_ALLOCATION {
1175            unsafe {
1176                let mut s = mem::MaybeUninit::<
1177                    [<T as GlibPtrDefault>::GlibType; MAX_STACK_ALLOCATION],
1178                >::uninit();
1179                let ptr = s.as_mut_ptr() as *mut <T as GlibPtrDefault>::GlibType;
1180                ptr::copy_nonoverlapping(
1181                    self.as_ptr() as *mut <T as GlibPtrDefault>::GlibType,
1182                    ptr,
1183                    self.len(),
1184                );
1185                ptr::write(
1186                    ptr.add(self.len()),
1187                    Ptr::from(ptr::null_mut::<<T as GlibPtrDefault>::GlibType>()),
1188                );
1189                f(std::slice::from_raw_parts(ptr, self.len() + 1))
1190            }
1191        } else {
1192            PtrSlice::<T>::from(self).run_with_ptr_slice(f)
1193        }
1194    }
1195}
1196
1197#[cfg(test)]
1198mod test {
1199    use super::*;
1200
1201    #[test]
1202    fn test_from_glib_full() {
1203        let items = [
1204            crate::Error::new(crate::FileError::Failed, "Failed 1"),
1205            crate::Error::new(crate::FileError::Noent, "Failed 2"),
1206            crate::Error::new(crate::FileError::Io, "Failed 3"),
1207            crate::Error::new(crate::FileError::Perm, "Failed 4"),
1208        ];
1209
1210        let slice = unsafe {
1211            let ptr = ffi::g_malloc(mem::size_of::<ffi::GDate>() * 4) as *mut *mut ffi::GError;
1212            ptr::write(ptr.add(0), items[0].to_glib_full());
1213            ptr::write(ptr.add(1), items[1].to_glib_full());
1214            ptr::write(ptr.add(2), items[2].to_glib_full());
1215            ptr::write(ptr.add(3), items[3].to_glib_full());
1216
1217            PtrSlice::<crate::Error>::from_glib_full_num(ptr, 4, false)
1218        };
1219
1220        for (a, b) in Iterator::zip(items.iter(), slice.iter()) {
1221            assert_eq!(a.message(), b.message());
1222            assert_eq!(
1223                a.kind::<crate::FileError>().unwrap(),
1224                b.kind::<crate::FileError>().unwrap()
1225            );
1226        }
1227    }
1228
1229    #[test]
1230    fn test_from_glib_none() {
1231        let items = [
1232            crate::Error::new(crate::FileError::Failed, "Failed 1"),
1233            crate::Error::new(crate::FileError::Noent, "Failed 2"),
1234            crate::Error::new(crate::FileError::Io, "Failed 3"),
1235            crate::Error::new(crate::FileError::Perm, "Failed 4"),
1236        ];
1237
1238        let slice = unsafe {
1239            PtrSlice::<crate::Error>::from_glib_none_num(
1240                items.as_ptr() as *const *mut ffi::GError,
1241                4,
1242                false,
1243            )
1244        };
1245
1246        for (a, b) in Iterator::zip(items.iter(), slice.iter()) {
1247            assert_eq!(a.message(), b.message());
1248            assert_eq!(
1249                a.kind::<crate::FileError>().unwrap(),
1250                b.kind::<crate::FileError>().unwrap()
1251            );
1252        }
1253    }
1254
1255    #[test]
1256    fn test_safe_api() {
1257        let items = [
1258            crate::Error::new(crate::FileError::Failed, "Failed 1"),
1259            crate::Error::new(crate::FileError::Noent, "Failed 2"),
1260            crate::Error::new(crate::FileError::Io, "Failed 3"),
1261        ];
1262
1263        let mut slice = PtrSlice::from(&items[..]);
1264        assert_eq!(slice.len(), 3);
1265        slice.push(crate::Error::new(crate::FileError::Perm, "Failed 4"));
1266        assert_eq!(slice.len(), 4);
1267
1268        for (a, b) in Iterator::zip(items.iter(), slice.iter()) {
1269            assert_eq!(a.message(), b.message());
1270            assert_eq!(
1271                a.kind::<crate::FileError>().unwrap(),
1272                b.kind::<crate::FileError>().unwrap()
1273            );
1274        }
1275        assert_eq!(slice[3].message(), "Failed 4");
1276
1277        let vec = Vec::from(slice);
1278        assert_eq!(vec.len(), 4);
1279        for (a, b) in Iterator::zip(items.iter(), vec.iter()) {
1280            assert_eq!(a.message(), b.message());
1281            assert_eq!(
1282                a.kind::<crate::FileError>().unwrap(),
1283                b.kind::<crate::FileError>().unwrap()
1284            );
1285        }
1286        assert_eq!(vec[3].message(), "Failed 4");
1287
1288        let mut slice = PtrSlice::from(vec);
1289        assert_eq!(slice.len(), 4);
1290        let e = slice.pop().unwrap();
1291        assert_eq!(e.message(), "Failed 4");
1292        assert_eq!(slice.len(), 3);
1293        slice.insert(2, e);
1294        assert_eq!(slice.len(), 4);
1295        assert_eq!(slice[0].message(), "Failed 1");
1296        assert_eq!(slice[1].message(), "Failed 2");
1297        assert_eq!(slice[2].message(), "Failed 4");
1298        assert_eq!(slice[3].message(), "Failed 3");
1299        let e = slice.remove(2);
1300        assert_eq!(e.message(), "Failed 4");
1301        assert_eq!(slice.len(), 3);
1302        slice.push(e);
1303        assert_eq!(slice.len(), 4);
1304
1305        let slice2 = crate::Slice::from(slice.clone());
1306
1307        for (a, b) in Iterator::zip(items.iter(), slice.into_iter()) {
1308            assert_eq!(a.message(), b.message());
1309            assert_eq!(
1310                a.kind::<crate::FileError>().unwrap(),
1311                b.kind::<crate::FileError>().unwrap()
1312            );
1313        }
1314
1315        let slice3 = crate::PtrSlice::from(slice2.clone());
1316
1317        for (a, b) in Iterator::zip(items.iter(), slice2.into_iter()) {
1318            assert_eq!(a.message(), b.message());
1319            assert_eq!(
1320                a.kind::<crate::FileError>().unwrap(),
1321                b.kind::<crate::FileError>().unwrap()
1322            );
1323        }
1324
1325        for (a, b) in Iterator::zip(items.iter(), slice3.into_iter()) {
1326            assert_eq!(a.message(), b.message());
1327            assert_eq!(
1328                a.kind::<crate::FileError>().unwrap(),
1329                b.kind::<crate::FileError>().unwrap()
1330            );
1331        }
1332    }
1333
1334    #[test]
1335    fn test_into_ptrslice() {
1336        let items = [
1337            crate::Error::new(crate::FileError::Failed, "Failed 1"),
1338            crate::Error::new(crate::FileError::Noent, "Failed 2"),
1339            crate::Error::new(crate::FileError::Io, "Failed 3"),
1340            crate::Error::new(crate::FileError::Perm, "Failed 4"),
1341        ];
1342
1343        items[..].run_with_ptr_slice(|s| unsafe {
1344            assert!(s[4].is_null());
1345            assert_eq!(s.len(), items.len() + 1);
1346            let s = std::slice::from_raw_parts(s.as_ptr() as *const crate::Error, items.len());
1347            assert_eq!(s, items);
1348        });
1349
1350        Vec::from(&items[..]).run_with_ptr_slice(|s| unsafe {
1351            assert!(s[4].is_null());
1352            assert_eq!(s.len(), items.len() + 1);
1353            let s = std::slice::from_raw_parts(s.as_ptr() as *const crate::Error, items.len());
1354            for (a, b) in Iterator::zip(items.iter(), s.iter()) {
1355                assert_eq!(a.message(), b.message());
1356                assert_eq!(
1357                    a.kind::<crate::FileError>().unwrap(),
1358                    b.kind::<crate::FileError>().unwrap()
1359                );
1360            }
1361        });
1362
1363        PtrSlice::<crate::Error>::from(&items[..]).run_with_ptr_slice(|s| unsafe {
1364            assert!(s[4].is_null());
1365            assert_eq!(s.len(), items.len() + 1);
1366            let s = std::slice::from_raw_parts(s.as_ptr() as *const crate::Error, items.len());
1367            for (a, b) in Iterator::zip(items.iter(), s.iter()) {
1368                assert_eq!(a.message(), b.message());
1369                assert_eq!(
1370                    a.kind::<crate::FileError>().unwrap(),
1371                    b.kind::<crate::FileError>().unwrap()
1372                );
1373            }
1374        });
1375
1376        let v = Vec::from(&items[..]);
1377        items.run_with_ptr_slice(|s| unsafe {
1378            assert!(s[4].is_null());
1379            assert_eq!(s.len(), v.len() + 1);
1380            let s = std::slice::from_raw_parts(s.as_ptr() as *const crate::Error, v.len());
1381            for (a, b) in Iterator::zip(v.iter(), s.iter()) {
1382                assert_eq!(a.message(), b.message());
1383                assert_eq!(
1384                    a.kind::<crate::FileError>().unwrap(),
1385                    b.kind::<crate::FileError>().unwrap()
1386                );
1387            }
1388        });
1389    }
1390}
glib/collections/ptr_slice.rs

glib/collections/
ptr_slice.rs
