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
use alloy_primitives::{Bloom, Log};

mod any;
pub use any::AnyReceiptEnvelope;

mod envelope;
pub use envelope::ReceiptEnvelope;

mod receipts;
pub use receipts::{Receipt, ReceiptWithBloom};

mod status;
pub use status::Eip658Value;

/// Receipt is the result of a transaction execution.
#[doc(alias = "TransactionReceipt")]
pub trait TxReceipt<T = Log> {
    /// Returns the status or post state of the transaction.
    ///
    /// ## Note
    ///
    /// Use this method instead of [`TxReceipt::status`] when the transaction
    /// is pre-[EIP-658].
    ///
    /// [EIP-658]: https://eips.ethereum.org/EIPS/eip-658
    fn status_or_post_state(&self) -> &Eip658Value;

    /// Returns true if the transaction was successful OR if the transaction is
    /// pre-[EIP-658]. Results for transactions before [EIP-658] are not
    /// reliable.
    ///
    /// ## Note
    ///
    /// Caution must be taken when using this method for deep-historical
    /// receipts, as it may not accurately reflect the status of the
    /// transaction. The transaction status is not knowable from the receipt
    /// for transactions before [EIP-658].
    ///
    /// This can be handled using [`TxReceipt::status_or_post_state`].
    ///
    /// [EIP-658]: https://eips.ethereum.org/EIPS/eip-658
    fn status(&self) -> bool;

    /// Returns the bloom filter for the logs in the receipt. This operation
    /// may be expensive.
    fn bloom(&self) -> Bloom;

    /// Returns the bloom filter for the logs in the receipt, if it is cheap to
    /// compute.
    fn bloom_cheap(&self) -> Option<Bloom> {
        None
    }

    /// Returns the cumulative gas used in the block after this transaction was executed.
    fn cumulative_gas_used(&self) -> u128;

    /// Returns the logs emitted by this transaction.
    fn logs(&self) -> &[T];
}

#[cfg(test)]
mod tests {
    use super::*;
    use alloy_eips::eip2718::Encodable2718;
    use alloy_primitives::{address, b256, bytes, hex, LogData};
    use alloy_rlp::{Decodable, Encodable};

    // Test vector from: https://eips.ethereum.org/EIPS/eip-2481
    #[test]
    fn encode_legacy_receipt() {
        let expected = hex!("f901668001b9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f85ff85d940000000000000000000000000000000000000011f842a0000000000000000000000000000000000000000000000000000000000000deada0000000000000000000000000000000000000000000000000000000000000beef830100ff");

        let mut data = vec![];
        let receipt =
            ReceiptEnvelope::Legacy(ReceiptWithBloom {
                receipt: Receipt {
                    cumulative_gas_used: 0x1u128,
                    logs: vec![Log {
                        address: address!("0000000000000000000000000000000000000011"),
                        data: LogData::new_unchecked(
                            vec![
                    b256!("000000000000000000000000000000000000000000000000000000000000dead"),
                    b256!("000000000000000000000000000000000000000000000000000000000000beef"),
                ],
                            bytes!("0100ff"),
                        ),
                    }],
                    status: false.into(),
                },
                logs_bloom: [0; 256].into(),
            });

        receipt.network_encode(&mut data);

        // check that the rlp length equals the length of the expected rlp
        assert_eq!(receipt.length(), expected.len());
        assert_eq!(data, expected);
    }

    // Test vector from: https://eips.ethereum.org/EIPS/eip-2481
    #[test]
    fn decode_legacy_receipt() {
        let data = hex!("f901668001b9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f85ff85d940000000000000000000000000000000000000011f842a0000000000000000000000000000000000000000000000000000000000000deada0000000000000000000000000000000000000000000000000000000000000beef830100ff");

        // EIP658Receipt
        let expected =
            ReceiptWithBloom {
                receipt: Receipt {
                    cumulative_gas_used: 0x1u128,
                    logs: vec![Log {
                        address: address!("0000000000000000000000000000000000000011"),
                        data: LogData::new_unchecked(
                            vec![
                        b256!("000000000000000000000000000000000000000000000000000000000000dead"),
                        b256!("000000000000000000000000000000000000000000000000000000000000beef"),
                    ],
                            bytes!("0100ff"),
                        ),
                    }],
                    status: false.into(),
                },
                logs_bloom: [0; 256].into(),
            };

        let receipt = ReceiptWithBloom::decode(&mut &data[..]).unwrap();
        assert_eq!(receipt, expected);
    }

    #[test]
    fn gigantic_receipt() {
        let receipt = Receipt {
            cumulative_gas_used: 16747627,
            status: true.into(),
            logs: vec![
                Log {
                    address: address!("4bf56695415f725e43c3e04354b604bcfb6dfb6e"),
                    data: LogData::new_unchecked(
                        vec![b256!(
                            "c69dc3d7ebff79e41f525be431d5cd3cc08f80eaf0f7819054a726eeb7086eb9"
                        )],
                        vec![1; 0xffffff].into(),
                    ),
                },
                Log {
                    address: address!("faca325c86bf9c2d5b413cd7b90b209be92229c2"),
                    data: LogData::new_unchecked(
                        vec![b256!(
                            "8cca58667b1e9ffa004720ac99a3d61a138181963b294d270d91c53d36402ae2"
                        )],
                        vec![1; 0xffffff].into(),
                    ),
                },
            ],
        }
        .with_bloom();

        let mut data = vec![];

        receipt.encode(&mut data);
        let decoded = ReceiptWithBloom::decode(&mut &data[..]).unwrap();

        // receipt.clone().to_compact(&mut data);
        // let (decoded, _) = Receipt::from_compact(&data[..], data.len());
        assert_eq!(decoded, receipt);
    }
}