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

// Copyright (C) 2019-2023 Aleo Systems Inc.
// This file is part of the snarkVM library.

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use super::*;

impl<N: Network, Private: Visibility<Boolean = Boolean<N>>> Eq for Record<N, Private> {}

impl<N: Network, Private: Visibility<Boolean = Boolean<N>>> PartialEq for Record<N, Private> {
    /// Returns `true` if `self` and `other` are equal.
    fn eq(&self, other: &Self) -> bool {
        *self.is_equal(other)
    }
}

impl<N: Network, Private: Visibility<Boolean = Boolean<N>>> Equal<Self> for Record<N, Private> {
    type Output = Boolean<N>;

    /// Returns `true` if `self` and `other` are equal.
    ///
    /// Note: This method does **not** check the `nonce` equality.
    fn is_equal(&self, other: &Self) -> Self::Output {
        // Recursively check each entry for equality.
        let mut equal = Boolean::new(true);
        for ((name_a, entry_a), (name_b, entry_b)) in self.data.iter().zip_eq(other.data.iter()) {
            equal = equal & name_a.is_equal(name_b) & entry_a.is_equal(entry_b);
        }

        // Check the `owner`, `data`, and `nonce`.
        self.owner.is_equal(&other.owner) & equal & self.nonce.is_equal(&other.nonce)
    }

    /// Returns `true` if `self` and `other` are *not* equal.
    ///
    /// Note: This method does **not** check the `nonce` equality.
    fn is_not_equal(&self, other: &Self) -> Self::Output {
        // Recursively check each entry for inequality.
        let mut not_equal = Boolean::new(false);
        for ((name_a, entry_a), (name_b, entry_b)) in self.data.iter().zip_eq(other.data.iter()) {
            not_equal = not_equal | name_a.is_not_equal(name_b) | entry_a.is_not_equal(entry_b);
        }

        // Check the `owner`, `data`, and `nonce`.
        self.owner.is_not_equal(&other.owner) | not_equal | self.nonce.is_not_equal(&other.nonce)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use snarkvm_console_network::Testnet3;

    type CurrentNetwork = Testnet3;

    fn sample_record() -> Record<CurrentNetwork, Plaintext<CurrentNetwork>> {
        Record::<CurrentNetwork, Plaintext<CurrentNetwork>>::from_str(
            r"{
    owner: aleo14tlamssdmg3d0p5zmljma573jghe2q9n6wz29qf36re2glcedcpqfg4add.private,
    a: true.private,
    b: 123456789field.public,
    c: 0group.private,
    d: {
        e: true.private,
        f: 123456789field.private,
        g: 0group.private
    },
    _nonce: 0group.public
}",
        )
        .unwrap()
    }

    fn sample_mismatched_record() -> Record<CurrentNetwork, Plaintext<CurrentNetwork>> {
        Record::<CurrentNetwork, Plaintext<CurrentNetwork>>::from_str(
            r"{
    owner: aleo14tlamssdmg3d0p5zmljma573jghe2q9n6wz29qf36re2glcedcpqfg4add.private,
    a: true.public,
    b: 123456789field.public,
    c: 0group.private,
    d: {
        e: true.private,
        f: 123456789field.private,
        g: 0group.private
    },
    _nonce: 0group.public
}",
        )
        .unwrap()
    }

    fn check_is_equal() {
        // Sample the record.
        let record = sample_record();
        let mismatched_record = sample_mismatched_record();

        let candidate = record.is_equal(&record);
        assert!(*candidate);

        let candidate = record.is_equal(&mismatched_record);
        assert!(!*candidate);
    }

    fn check_is_not_equal() {
        // Sample the record.
        let record = sample_record();
        let mismatched_record = sample_mismatched_record();

        let candidate = record.is_not_equal(&mismatched_record);
        assert!(*candidate);

        let candidate = record.is_not_equal(&record);
        assert!(!*candidate);
    }

    #[test]
    fn test_is_equal() {
        check_is_equal()
    }

    #[test]
    fn test_is_not_equal() {
        check_is_not_equal()
    }
}