1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
use core::slice;

#[doc(inline)]
pub use spinoso_array::RawParts;

use crate::sys;
use crate::value::Value;

/// A contiguous growable array type based on [`Vec<sys::mrb_value>`](Vec) that
/// implements the [Ruby `Array`][ruby-array] API for `artichoke-backend` and
/// `mruby`.
///
/// `Array` implements indexing and mutating APIs that make an ideal backend for
/// the [Ruby `Array` core class][ruby-array]. In practice, this results in less
/// generic, more single-use APIs. For example, instead of [`Vec::drain`],
/// `Array` implements [`shift`], [`shift_n`], [`pop`], and [`pop_n`].
///
/// Similarly, slicing APIs are more specialized, such as [`first_n`] and
/// [`last_n`]. Slicing APIs do not return [`Option`], instead preferring to
/// return an empty slice.
///
///
/// `Array` implements [`BoxUnboxVmValue`] which enables it to be serialized to
/// a mruby value and unboxed to the Rust `Array` type.
///
/// [ruby-array]: https://ruby-doc.org/core-3.1.2/Array.html
/// [`shift`]: Array::shift
/// [`shift_n`]: Array::shift_n
/// [`drop_n`]: Array::drop_n
/// [`pop`]: Array::pop
/// [`pop_n`]: Array::pop_n
/// [`first_n`]: Array::first_n
/// [`last_n`]: Array::last_n
/// [`BoxUnboxVmValue`]: crate::convert::BoxUnboxVmValue
#[derive(Debug, Clone)]
pub struct Array(spinoso_array::Array<sys::mrb_value>);

impl Default for Array {
    #[inline]
    fn default() -> Self {
        Self::new()
    }
}

impl From<spinoso_array::Array<sys::mrb_value>> for Array {
    fn from(buffer: spinoso_array::Array<sys::mrb_value>) -> Self {
        Self(buffer)
    }
}

impl From<Vec<sys::mrb_value>> for Array {
    fn from(values: Vec<sys::mrb_value>) -> Self {
        Self(values.into())
    }
}

impl From<Vec<Value>> for Array {
    fn from(values: Vec<Value>) -> Self {
        Self(values.iter().map(Value::inner).collect())
    }
}

impl<'a> From<&'a [sys::mrb_value]> for Array {
    fn from(values: &'a [sys::mrb_value]) -> Self {
        Self(values.into())
    }
}

impl<'a> From<&'a [Value]> for Array {
    fn from(values: &'a [Value]) -> Self {
        Self(values.iter().map(Value::inner).collect())
    }
}

impl FromIterator<sys::mrb_value> for Array {
    fn from_iter<I>(iter: I) -> Self
    where
        I: IntoIterator<Item = sys::mrb_value>,
    {
        Self(iter.into_iter().collect())
    }
}

impl FromIterator<Value> for Array {
    fn from_iter<I>(iter: I) -> Self
    where
        I: IntoIterator<Item = Value>,
    {
        Self(iter.into_iter().map(|value| value.inner()).collect())
    }
}

impl FromIterator<Option<Value>> for Array {
    fn from_iter<I>(iter: I) -> Self
    where
        I: IntoIterator<Item = Option<Value>>,
    {
        let array = iter
            .into_iter()
            .map(|value| value.unwrap_or_default().inner())
            .collect();
        Self(array)
    }
}

impl<'a> FromIterator<&'a Option<Value>> for Array {
    fn from_iter<I>(iter: I) -> Self
    where
        I: IntoIterator<Item = &'a Option<Value>>,
    {
        let array = iter
            .into_iter()
            .map(|value| value.unwrap_or_default().inner())
            .collect();
        Self(array)
    }
}

#[derive(Debug)]
pub struct Iter<'a>(slice::Iter<'a, sys::mrb_value>);

impl<'a> Iterator for Iter<'a> {
    type Item = Value;

    fn next(&mut self) -> Option<Self::Item> {
        self.0.next().copied().map(Value::from)
    }
}

impl<'a> IntoIterator for &'a Array {
    type Item = Value;
    type IntoIter = Iter<'a>;

    fn into_iter(self) -> Self::IntoIter {
        Iter(self.0.iter())
    }
}

impl Extend<sys::mrb_value> for Array {
    fn extend<T>(&mut self, iter: T)
    where
        T: IntoIterator<Item = sys::mrb_value>,
    {
        self.0.extend(iter);
    }
}

impl Extend<Value> for Array {
    fn extend<T>(&mut self, iter: T)
    where
        T: IntoIterator<Item = Value>,
    {
        self.0.extend(iter.into_iter().map(|value| value.inner()));
    }
}

impl Array {
    /// Construct a new, empty `Array`.
    ///
    /// The vector will not allocate until elements are pushed into it.
    #[inline]
    #[must_use]
    pub const fn new() -> Self {
        Self(spinoso_array::Array::new())
    }

    /// Construct a new, empty `Array` with the specified capacity.
    ///
    /// The vector will be able to hold exactly `capacity` elements without
    /// reallocating. If `capacity` is 0, the vector will not allocate.
    ///
    /// It is important to note that although the returned vector has the
    /// _capacity_ specified, the vector will have a zero _length_.
    #[inline]
    #[must_use]
    pub fn with_capacity(capacity: usize) -> Self {
        Self(spinoso_array::Array::with_capacity(capacity))
    }

    /// Construct a new two-element `Array` from the given arguments.
    ///
    /// The vector is constructed with `capacity` of 2.
    #[inline]
    #[must_use]
    pub fn assoc(first: Value, second: Value) -> Self {
        Self(spinoso_array::Array::assoc(first.inner(), second.inner()))
    }

    /// Returns an iterator over the slice.
    #[inline]
    #[must_use]
    pub fn iter(&self) -> Iter<'_> {
        self.into_iter()
    }

    /// Extracts a slice containing the entire vector.
    ///
    /// Equivalent to `&ary[..]`.
    #[inline]
    #[must_use]
    pub fn as_slice(&self) -> &[sys::mrb_value] {
        self.0.as_slice()
    }

    /// Extracts a mutable slice containing the entire vector.
    ///
    /// Equivalent to `&mut ary[..]`.
    #[inline]
    #[must_use]
    pub fn as_mut_slice(&mut self) -> &mut [sys::mrb_value] {
        self.0.as_mut_slice()
    }

    /// Returns a raw pointer to the vector's buffer.
    ///
    /// The caller must ensure that the vector outlives the pointer this
    /// function returns, or else it will end up pointing to garbage. Modifying
    /// the vector may cause its buffer to be reallocated, which would also make
    /// any pointers to it invalid.
    ///
    /// The caller must also ensure that the memory the pointer
    /// (non-transitively) points to is never written to (except inside an
    /// `UnsafeCell`) using this pointer or any pointer derived from it. If you
    /// need to mutate the contents of the slice, use
    /// [`as_mut_ptr`](Self::as_mut_ptr).
    #[inline]
    #[must_use]
    pub fn as_ptr(&self) -> *const sys::mrb_value {
        self.0.as_ptr()
    }

    /// Returns an unsafe mutable pointer to the vector's buffer.
    ///
    /// The caller must ensure that the vector outlives the pointer this
    /// function returns, or else it will end up pointing to garbage.
    /// Modifying the vector may cause its buffer to be reallocated, which would
    /// also make any pointers to it invalid.
    ///
    /// # Examples
    ///
    /// This method is primarily used when mutating a `Array` via a raw pointer
    /// passed over FFI.
    ///
    /// See the [`ARY_PTR`] macro in mruby.
    ///
    /// [`ARY_PTR`]: https://github.com/artichoke/mruby/blob/d66440864d08f1c3ac5820d45f11df031b7d43c6/include/mruby/array.h#L52
    #[inline]
    #[must_use]
    pub fn as_mut_ptr(&mut self) -> *mut sys::mrb_value {
        self.0.as_mut_ptr()
    }

    /// Set the vector's length without dropping or moving out elements
    ///
    /// This method is unsafe because it changes the notion of the number of
    /// "valid" elements in the vector. Use with care.
    ///
    /// # Safety
    ///
    /// - `new_len` must be less than or equal to `capacity()`.
    /// - The elements at `old_len..new_len` must be initialized.
    ///
    /// # Examples
    ///
    /// This method is primarily used when mutating a `Array` via a raw pointer
    /// passed over FFI.
    ///
    /// See the [`ARY_PTR`] macro in mruby.
    ///
    /// [`ARY_PTR`]: https://github.com/artichoke/mruby/blob/d66440864d08f1c3ac5820d45f11df031b7d43c6/include/mruby/array.h#L52
    #[inline]
    pub unsafe fn set_len(&mut self, new_len: usize) {
        self.0.set_len(new_len);
    }

    /// Creates an `Array` directly from the raw components of another array.
    ///
    /// # Safety
    ///
    /// This is highly unsafe, due to the number of invariants that aren't
    /// checked:
    ///
    /// - `ptr` needs to have been previously allocated via `Array<T>` (at
    ///   least, it's highly likely to be incorrect if it wasn't).
    /// - `T` needs to have the same size and alignment as what `ptr` was
    ///   allocated with. (`T` having a less strict alignment is not sufficient,
    ///   the alignment really needs to be equal to satisfy the `dealloc`
    ///   requirement that memory must be allocated and deallocated with the
    ///   same layout.)
    /// - `length` needs to be less than or equal to `capacity`.
    /// - `capacity` needs to be the `capacity` that the pointer was allocated
    ///   with.
    ///
    /// Violating these may cause problems like corrupting the allocator's
    /// internal data structures.
    ///
    /// The ownership of `ptr` is effectively transferred to the `Array<T>`
    /// which may then deallocate, reallocate or change the contents of memory
    /// pointed to by the pointer at will. Ensure that nothing else uses the
    /// pointer after calling this function.
    #[must_use]
    pub unsafe fn from_raw_parts(raw_parts: RawParts<sys::mrb_value>) -> Self {
        let array = spinoso_array::Array::from_raw_parts(raw_parts);
        Self(array)
    }

    /// Decomposes an `Array<T>` into its raw components.
    ///
    /// Returns the raw pointer to the underlying data, the length of the array
    /// (in elements), and the allocated capacity of the data (in elements).
    ///
    /// After calling this function, the caller is responsible for the memory
    /// previously managed by the `Array`. The only way to do this is to convert
    /// the raw pointer, length, and capacity back into a `Array` with the
    /// [`from_raw_parts`] function, allowing the destructor to perform the
    /// cleanup.
    ///
    /// [`from_raw_parts`]: Array::from_raw_parts
    #[must_use]
    pub fn into_raw_parts(self) -> RawParts<sys::mrb_value> {
        self.0.into_raw_parts()
    }

    /// Consume the array and return its elements as a [`Vec<T>`].
    ///
    /// For `Array`, this is a cheap operation that unwraps the inner `Vec`.
    ///
    /// [`Vec<T>`]: std::vec::Vec
    #[inline]
    #[must_use]
    pub fn into_vec(self) -> Vec<sys::mrb_value> {
        self.0.into_vec()
    }

    /// Converts the vector into [`Box<[T]>`](Box).
    ///
    /// This will drop any excess capacity.
    #[inline]
    #[must_use]
    pub fn into_boxed_slice(self) -> Box<[sys::mrb_value]> {
        self.0.into_boxed_slice()
    }

    /// Returns the number of elements the vector can hold without reallocating.
    #[inline]
    #[must_use]
    pub fn capacity(&self) -> usize {
        self.0.capacity()
    }

    /// Reserves capacity for at least `additional` more elements to be inserted
    /// in the given `Array<T>`. The collection may reserve more space to avoid
    /// frequent reallocations. After calling reserve, capacity will be greater
    /// than or equal to `self.len() + additional`. Does nothing if capacity is
    /// already sufficient.
    ///
    /// # Panics
    ///
    /// Panics if the new capacity overflows `usize`.
    #[inline]
    pub fn reserve(&mut self, additional: usize) {
        self.0.reserve(additional);
    }

    /// Shrinks the capacity of the vector as much as possible.
    ///
    /// It will drop down as close as possible to the length but the allocator
    /// may still inform the vector that there is space for a few more elements.
    #[inline]
    pub fn shrink_to_fit(&mut self) {
        self.0.shrink_to_fit();
    }

    /// Clears the vector, removing all values.
    ///
    /// Note that this method has no effect on the allocated capacity of the
    /// vector.
    #[inline]
    pub fn clear(&mut self) {
        self.0.clear();
    }

    /// Returns the number of elements in the vector, also referred to as its
    /// "length".
    #[inline]
    #[must_use]
    pub fn len(&self) -> usize {
        self.0.len()
    }

    /// Returns `true` if the vector contains no elements.
    #[inline]
    #[must_use]
    pub fn is_empty(&self) -> bool {
        self.0.is_empty()
    }

    /// Returns a reference to an element at the index.
    ///
    /// Unlike [`Vec`], this method does not support indexing with a range.  See
    /// the [`slice`](Self::slice) method for retrieving a sub-slice from the
    /// array.
    #[inline]
    #[must_use]
    pub fn get(&self, index: usize) -> Option<Value> {
        self.0.get(index).copied().map(Value::from)
    }

    /// Deletes the element at the specified `index`, returning that element, or
    /// [`None`] if the `index` is out of range.
    #[inline]
    #[must_use]
    pub fn delete_at(&mut self, index: usize) -> Option<Value> {
        self.0.delete_at(index).map(Value::from)
    }

    /// Returns the first element from the vector, or [`None`] if the vector is
    /// empty.
    ///
    /// To retrieve a slice of the first elements in the vector, use
    /// [`first_n`](Self::first_n).
    #[inline]
    #[must_use]
    pub fn first(&self) -> Option<Value> {
        self.0.first().copied().map(Value::from)
    }

    /// Returns up to `n` of the first elements from the vector, or `&[]` if the
    /// vector is empty.
    ///
    /// To retrieve only the first element in the vector, use
    /// [`first`](Self::first).
    #[inline]
    #[must_use]
    pub fn first_n(&self, n: usize) -> &[sys::mrb_value] {
        self.0.first_n(n)
    }

    /// Returns the last element from the vector, or [`None`] if the vector is
    /// empty.
    ///
    /// To retrieve a slice of the last elements in the vector, use
    /// [`last_n`](Self::last_n).
    #[inline]
    #[must_use]
    pub fn last(&self) -> Option<Value> {
        self.0.last().copied().map(Value::from)
    }

    /// Returns up to `n` of the last elements from the vector, or `&[]` if the
    /// vector is empty.
    ///
    /// To retrieve only the last element in the vector, use
    /// [`last`](Self::last).
    #[inline]
    #[must_use]
    pub fn last_n(&self, n: usize) -> &[sys::mrb_value] {
        self.0.last_n(n)
    }

    /// Returns a slice of the underlying vector that includes only the first
    /// `n` elements.
    ///
    /// If `n` is greater than or equal to the length of the vector, `&self[..]`
    /// is returned.
    ///
    /// The inverse of this operation is [`drop_n`](Self::drop_n).
    #[inline]
    #[must_use]
    pub fn take_n(&self, n: usize) -> &[sys::mrb_value] {
        self.0.take_n(n)
    }

    /// Returns a slice of the underlying vector that excludes the first `n`
    /// elements.
    ///
    /// If `n` is greater than or equal to the length of the vector, `&[]` is
    /// returned.
    ///
    /// The inverse of this operation is [`take_n`](Self::take_n).
    #[inline]
    #[must_use]
    pub fn drop_n(&self, n: usize) -> &[sys::mrb_value] {
        self.0.drop_n(n)
    }

    /// Removes the last element from the vector and returns it, or [`None`] if
    /// the vector is empty.
    ///
    /// To pop more than one element from the end of the vector, use
    /// [`pop_n`](Self::pop_n).
    #[inline]
    #[must_use]
    pub fn pop(&mut self) -> Option<Value> {
        self.0.pop().map(Value::from)
    }

    /// Removes the last `n` elements from the vector.
    ///
    /// To pop a single element from the end of the vector, use
    /// [`pop`](Self::pop).
    #[inline]
    #[must_use]
    pub fn pop_n(&mut self, n: usize) -> Self {
        Self(self.0.pop_n(n))
    }

    /// Appends an element to the back of the vector.
    ///
    /// To push more than one element to the end of the vector, use
    /// [`concat`](Self::concat) or `extend`.
    ///
    /// # Panics
    ///
    /// Panics if the number of elements in the vector overflows a `usize`.
    #[inline]
    pub fn push(&mut self, elem: Value) {
        self.0.push(elem.inner());
    }

    /// Reverses the order of elements of the vector, in place.
    #[inline]
    pub fn reverse(&mut self) {
        self.0.reverse();
    }

    /// Removes the first element of the vector and returns it (shifting all
    /// other elements down by one). Returns [`None`] if the vector is empty.
    ///
    /// This operation is also known as "pop front".
    ///
    /// To remove more than one element from the front of the vector, use
    /// [`shift_n`](Self::shift_n).
    #[inline]
    #[must_use]
    pub fn shift(&mut self) -> Option<Value> {
        self.0.shift().map(Value::from)
    }

    /// Removes the first `n` elements from the vector.
    ///
    /// To shift a single element from the front of the vector, use
    /// [`shift`](Self::shift).
    #[inline]
    #[must_use]
    pub fn shift_n(&mut self, n: usize) -> Self {
        Self(self.0.shift_n(n))
    }

    /// Inserts an element to the front of the vector.
    ///
    /// To insert more than one element to the front of the vector, use
    /// [`unshift_n`](Self::unshift_n).
    ///
    /// This operation is also known as "prepend".
    ///
    /// # Panics
    ///
    /// Panics if the number of elements in the vector overflows a `usize`.
    #[inline]
    pub fn unshift(&mut self, elem: Value) {
        self.0.unshift(elem.inner());
    }

    /// Return a reference to a subslice of the vector.
    ///
    /// This function always returns a slice. If the range specified by `start`
    /// and `end` overlaps the vector (even if only partially), the overlapping
    /// slice is returned. If the range does not overlap the vector, an empty
    /// slice is returned.
    #[inline]
    #[must_use]
    pub fn slice(&self, start: usize, len: usize) -> &[sys::mrb_value] {
        self.0.slice(start, len)
    }
}

impl Array
where
    sys::mrb_value: Clone,
{
    /// Construct a new `Array` with length `len` and all elements set to
    /// `default`. The `Array` will have capacity `len`.
    #[inline]
    #[must_use]
    pub fn with_len_and_default(len: usize, default: Value) -> Self {
        Self(spinoso_array::Array::with_len_and_default(len, default.inner()))
    }

    /// Appends the elements of `other` to self.
    ///
    /// Slice version of `extend`. This operation is analogous to "push n".
    #[inline]
    pub fn concat(&mut self, other: &[sys::mrb_value]) {
        self.0.concat(other);
    }

    /// Prepends the elements of `other` to self.
    ///
    /// To insert one element to the front of the vector, use
    /// [`unshift`](Self::unshift).
    ///
    /// This operation is also known as "prepend".
    ///
    /// # Panics
    ///
    /// Panics if the number of elements in the vector overflows a `usize`.
    #[inline]
    pub fn unshift_n(&mut self, other: &[sys::mrb_value]) {
        self.0.unshift_n(other);
    }
}

impl Array
where
    sys::mrb_value: Copy,
{
    /// Creates a new array by repeating this array `n` times.
    ///
    /// This function will not panic. If the resulting `Array`'s capacity would
    /// overflow, [`None`] is returned.
    #[must_use]
    pub fn repeat(&self, n: usize) -> Option<Self> {
        self.0.repeat(n).map(Self)
    }
}

impl Array
where
    sys::mrb_value: Default,
{
    /// Set element at position `index` within the vector, extending the vector
    /// with `nil` if `index` is out of bounds.
    #[inline]
    pub fn set(&mut self, index: usize, elem: Value) {
        self.0.set(index, elem.inner());
    }

    /// Insert element at position `start` within the vector and remove the
    /// following `drain` elements. If `start` is out of bounds, the vector will
    /// be extended with `nil`.
    ///
    /// This method sets a slice of the `Array` to a single element, including
    /// the zero-length slice. It is similar in intent to calling
    /// [`Vec::splice`] with a one-element iterator.
    ///
    /// `set_with_drain` will only drain up to the end of the vector.
    ///
    /// To set a single element without draining, use [`set`](Self::set).
    #[inline]
    pub fn set_with_drain(&mut self, start: usize, drain: usize, elem: Value) -> usize {
        self.0.set_with_drain(start, drain, elem.inner())
    }
}

impl Array
where
    sys::mrb_value: Default + Clone,
{
    /// Insert the elements from a slice at a position `index` in the vector,
    /// extending the vector with `nil` if `index` is out of bounds.
    ///
    /// This method is similar to [`Vec::splice`] when called with a zero-length
    /// range.
    #[inline]
    pub fn insert_slice(&mut self, index: usize, values: &[sys::mrb_value]) {
        self.0.insert_slice(index, values);
    }

    /// Insert the elements from a slice at a position `index` in the vector and
    /// remove the following `drain` elements. The vector is extended with
    /// `nil` if `index` is out of bounds.
    ///
    /// This method is similar to [`Vec::splice`] when called with a
    /// nonzero-length range.
    ///
    /// When called with `drain == 0`, this method is equivalent to
    /// [`insert_slice`](Self::insert_slice).
    ///
    /// If `drain >= src.len()` or the tail of the vector is replaced, this
    /// method is efficient. Otherwise, a temporary buffer is used to move the
    /// elements.
    #[inline]
    pub fn set_slice(&mut self, index: usize, drain: usize, values: &[sys::mrb_value]) -> usize {
        self.0.set_slice(index, drain, values)
    }
}