snarkvm_ledger_block/transactions/rejected/
serialize.rs

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
// Copyright 2024 Aleo Network Foundation
// 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> Serialize for Rejected<N> {
    /// Serializes the rejected transaction into string or bytes.
    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
        match serializer.is_human_readable() {
            true => match self {
                Self::Deployment(program_owner, deployment) => {
                    let mut object = serializer.serialize_struct("Rejected", 3)?;
                    object.serialize_field("type", "deployment")?;
                    object.serialize_field("program_owner", program_owner)?;
                    object.serialize_field("deployment", deployment)?;
                    object.end()
                }
                Self::Execution(execution) => {
                    let mut object = serializer.serialize_struct("Rejected", 2)?;
                    object.serialize_field("type", "execution")?;
                    object.serialize_field("execution", execution)?;
                    object.end()
                }
            },
            false => ToBytesSerializer::serialize_with_size_encoding(self, serializer),
        }
    }
}

impl<'de, N: Network> Deserialize<'de> for Rejected<N> {
    /// Deserializes the confirmed transaction from a string or bytes.
    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        match deserializer.is_human_readable() {
            true => {
                // Parse the rejected transaction from a string into a value.
                let mut object = serde_json::Value::deserialize(deserializer)?;

                // Parse the type.
                let type_ = object.get("type").and_then(|t| t.as_str());

                // Recover the rejected transaction.
                match type_ {
                    Some("deployment") => {
                        // Parse the program owner.
                        let program_owner: ProgramOwner<N> =
                            DeserializeExt::take_from_value::<D>(&mut object, "program_owner")?;
                        // Parse the deployment.
                        let deployment: Deployment<N> =
                            DeserializeExt::take_from_value::<D>(&mut object, "deployment")?;
                        // Return the rejected deployment.
                        Ok(Self::new_deployment(program_owner, deployment))
                    }
                    Some("execution") => {
                        // Parse the execution.
                        let execution: Execution<N> = DeserializeExt::take_from_value::<D>(&mut object, "execution")?;
                        // Return the rejected execution.
                        Ok(Self::new_execution(execution))
                    }
                    _ => Err(de::Error::custom("Invalid rejected transaction type")),
                }
            }
            false => {
                FromBytesDeserializer::<Self>::deserialize_with_size_encoding(deserializer, "confirmed transaction")
            }
        }
    }
}

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

    fn check_serde_json<
        T: Serialize + for<'a> Deserialize<'a> + Debug + Display + PartialEq + Eq + FromStr + ToBytes + FromBytes,
    >(
        expected: T,
    ) {
        // Serialize
        let expected_string = expected.to_string();
        let candidate_string = serde_json::to_string(&expected).unwrap();
        let candidate = serde_json::from_str::<T>(&candidate_string).unwrap();
        assert_eq!(expected, candidate);
        assert_eq!(expected_string, candidate_string);
        assert_eq!(expected_string, candidate.to_string());

        // Deserialize
        assert_eq!(expected, T::from_str(&expected_string).unwrap_or_else(|_| panic!("FromStr: {expected_string}")));
        assert_eq!(expected, serde_json::from_str(&candidate_string).unwrap());
    }

    fn check_bincode<
        T: Serialize + for<'a> Deserialize<'a> + Debug + Display + PartialEq + Eq + FromStr + ToBytes + FromBytes,
    >(
        expected: T,
    ) {
        // Serialize
        let expected_bytes = expected.to_bytes_le().unwrap();
        let expected_bytes_with_size_encoding = bincode::serialize(&expected).unwrap();
        assert_eq!(&expected_bytes[..], &expected_bytes_with_size_encoding[8..]);

        // Deserialize
        assert_eq!(expected, T::read_le(&expected_bytes[..]).unwrap());
        assert_eq!(expected, bincode::deserialize(&expected_bytes_with_size_encoding[..]).unwrap());
    }

    #[test]
    fn test_serde_json() {
        for rejected in crate::transactions::rejected::test_helpers::sample_rejected_transactions() {
            check_serde_json(rejected);
        }
    }

    #[test]
    fn test_bincode() {
        for rejected in crate::transactions::rejected::test_helpers::sample_rejected_transactions() {
            check_bincode(rejected);
        }
    }
}