zerovec/
zerofrom_impls.rs

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1// This file is part of ICU4X. For terms of use, please see the file
2// called LICENSE at the top level of the ICU4X source tree
3// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
4
5#[cfg(feature = "alloc")]
6use crate::map::ZeroMapKV;
7use crate::ule::*;
8use crate::vecs::VarZeroVecFormat;
9use crate::{VarZeroSlice, VarZeroVec, ZeroSlice, ZeroVec};
10#[cfg(feature = "alloc")]
11use crate::{ZeroMap, ZeroMap2d};
12use zerofrom::ZeroFrom;
13
14impl<'zf, T> ZeroFrom<'zf, ZeroVec<'_, T>> for ZeroVec<'zf, T>
15where
16    T: 'static + AsULE,
17{
18    #[inline]
19    fn zero_from(other: &'zf ZeroVec<'_, T>) -> Self {
20        ZeroVec::new_borrowed(other.as_ule_slice())
21    }
22}
23
24impl<'zf, T> ZeroFrom<'zf, ZeroSlice<T>> for ZeroVec<'zf, T>
25where
26    T: 'static + AsULE,
27{
28    #[inline]
29    fn zero_from(other: &'zf ZeroSlice<T>) -> Self {
30        ZeroVec::new_borrowed(other.as_ule_slice())
31    }
32}
33
34impl<'zf, T> ZeroFrom<'zf, ZeroSlice<T>> for &'zf ZeroSlice<T>
35where
36    T: 'static + AsULE,
37{
38    #[inline]
39    fn zero_from(other: &'zf ZeroSlice<T>) -> Self {
40        other
41    }
42}
43
44impl<'zf, T, F: VarZeroVecFormat> ZeroFrom<'zf, VarZeroSlice<T, F>> for VarZeroVec<'zf, T, F>
45where
46    T: 'static + VarULE + ?Sized,
47{
48    #[inline]
49    fn zero_from(other: &'zf VarZeroSlice<T, F>) -> Self {
50        other.into()
51    }
52}
53
54impl<'zf, T, F: VarZeroVecFormat> ZeroFrom<'zf, VarZeroVec<'_, T, F>> for VarZeroVec<'zf, T, F>
55where
56    T: 'static + VarULE + ?Sized,
57{
58    #[inline]
59    fn zero_from(other: &'zf VarZeroVec<'_, T, F>) -> Self {
60        other.as_slice().into()
61    }
62}
63
64impl<'zf, T> ZeroFrom<'zf, VarZeroSlice<T>> for &'zf VarZeroSlice<T>
65where
66    T: 'static + VarULE + ?Sized,
67{
68    #[inline]
69    fn zero_from(other: &'zf VarZeroSlice<T>) -> Self {
70        other
71    }
72}
73
74#[cfg(feature = "alloc")]
75impl<'zf, 's, K, V> ZeroFrom<'zf, ZeroMap<'s, K, V>> for ZeroMap<'zf, K, V>
76where
77    K: 'static + for<'b> ZeroMapKV<'b> + ?Sized,
78    V: 'static + for<'b> ZeroMapKV<'b> + ?Sized,
79    <K as ZeroMapKV<'zf>>::Container: ZeroFrom<'zf, <K as ZeroMapKV<'s>>::Container>,
80    <V as ZeroMapKV<'zf>>::Container: ZeroFrom<'zf, <V as ZeroMapKV<'s>>::Container>,
81{
82    fn zero_from(other: &'zf ZeroMap<'s, K, V>) -> Self {
83        ZeroMap {
84            keys: K::Container::zero_from(&other.keys),
85            values: V::Container::zero_from(&other.values),
86        }
87    }
88}
89
90#[cfg(feature = "alloc")]
91impl<'zf, 's, K0, K1, V> ZeroFrom<'zf, ZeroMap2d<'s, K0, K1, V>> for ZeroMap2d<'zf, K0, K1, V>
92where
93    K0: 'static + for<'b> ZeroMapKV<'b> + ?Sized,
94    K1: 'static + for<'b> ZeroMapKV<'b> + ?Sized,
95    V: 'static + for<'b> ZeroMapKV<'b> + ?Sized,
96    <K0 as ZeroMapKV<'zf>>::Container: ZeroFrom<'zf, <K0 as ZeroMapKV<'s>>::Container>,
97    <K1 as ZeroMapKV<'zf>>::Container: ZeroFrom<'zf, <K1 as ZeroMapKV<'s>>::Container>,
98    <V as ZeroMapKV<'zf>>::Container: ZeroFrom<'zf, <V as ZeroMapKV<'s>>::Container>,
99{
100    fn zero_from(other: &'zf ZeroMap2d<'s, K0, K1, V>) -> Self {
101        ZeroMap2d {
102            keys0: K0::Container::zero_from(&other.keys0),
103            joiner: ZeroVec::zero_from(&other.joiner),
104            keys1: K1::Container::zero_from(&other.keys1),
105            values: V::Container::zero_from(&other.values),
106        }
107    }
108}
zerovec/zerofrom_impls.rs

zerovec/
zerofrom_impls.rs
