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

//! Commonly used identifiers for contracts in the compiled output
use std::{borrow::Cow, convert::TryFrom, fmt, str::FromStr};

#[derive(Debug, Clone, PartialEq, Eq, thiserror::Error)]
#[error("{0}")]
pub struct ParseContractInfoError(String);

/// Represents the common contract argument pattern for `<path>:<contractname>` where `<path>:` is
/// optional.
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub struct ContractInfo {
    /// Location of the contract
    pub path: Option<String>,
    /// Name of the contract
    pub name: String,
}

// === impl ContractInfo ===

impl ContractInfo {
    /// Creates a new `ContractInfo` from the `info` str.
    ///
    /// This will attempt `ContractInfo::from_str`, if `info` matches the `<path>:<name>` format,
    /// the `ContractInfo`'s `path` will be set.
    ///
    /// otherwise the `name` of the new object will be `info`.
    ///
    /// # Example
    ///
    /// ```
    ///  use ethers_solc::info::ContractInfo;
    /// let info = ContractInfo::new("src/Greeter.sol:Greeter");
    /// assert_eq!(info, ContractInfo {path: Some("src/Greeter.sol".to_string()), name: "Greeter".to_string()});
    /// ```
    pub fn new(info: impl AsRef<str>) -> Self {
        let info = info.as_ref();
        info.parse().unwrap_or_else(|_| ContractInfo { path: None, name: info.to_string() })
    }
}

impl fmt::Display for ContractInfo {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        if let Some(ref path) = self.path {
            write!(f, "{path}:{}", self.name)
        } else {
            write!(f, "{}", self.name)
        }
    }
}

impl FromStr for ContractInfo {
    type Err = ParseContractInfoError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let err = || {
            ParseContractInfoError(
                "contract source info format must be `<path>:<contractname>` or `<contractname>`"
                    .to_string(),
            )
        };
        let mut iter = s.rsplit(':');
        let name = iter.next().ok_or_else(err)?.trim().to_string();
        let path = iter.next().map(str::to_string);

        if name.ends_with(".sol") || name.contains('/') {
            return Err(err())
        }

        Ok(Self { path, name })
    }
}

impl From<FullContractInfo> for ContractInfo {
    fn from(info: FullContractInfo) -> Self {
        let FullContractInfo { path, name } = info;
        ContractInfo { path: Some(path), name }
    }
}

/// The reference type for `ContractInfo`
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub struct ContractInfoRef<'a> {
    pub path: Option<Cow<'a, str>>,
    pub name: Cow<'a, str>,
}

impl<'a> From<ContractInfo> for ContractInfoRef<'a> {
    fn from(info: ContractInfo) -> Self {
        ContractInfoRef { path: info.path.map(Into::into), name: info.name.into() }
    }
}

impl<'a> From<&'a ContractInfo> for ContractInfoRef<'a> {
    fn from(info: &'a ContractInfo) -> Self {
        ContractInfoRef {
            path: info.path.as_deref().map(Into::into),
            name: info.name.as_str().into(),
        }
    }
}
impl<'a> From<FullContractInfo> for ContractInfoRef<'a> {
    fn from(info: FullContractInfo) -> Self {
        ContractInfoRef { path: Some(info.path.into()), name: info.name.into() }
    }
}

impl<'a> From<&'a FullContractInfo> for ContractInfoRef<'a> {
    fn from(info: &'a FullContractInfo) -> Self {
        ContractInfoRef { path: Some(info.path.as_str().into()), name: info.name.as_str().into() }
    }
}

/// Represents the common contract argument pattern `<path>:<contractname>`
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub struct FullContractInfo {
    /// Location of the contract
    pub path: String,
    /// Name of the contract
    pub name: String,
}

impl fmt::Display for FullContractInfo {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}:{}", self.path, self.name)
    }
}

impl FromStr for FullContractInfo {
    type Err = ParseContractInfoError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let (path, name) = s.split_once(':').ok_or_else(|| {
            ParseContractInfoError("Expected `<path>:<contractname>`, got `{s}`".to_string())
        })?;
        Ok(Self { path: path.to_string(), name: name.trim().to_string() })
    }
}

impl TryFrom<ContractInfo> for FullContractInfo {
    type Error = ParseContractInfoError;

    fn try_from(value: ContractInfo) -> Result<Self, Self::Error> {
        let ContractInfo { path, name } = value;
        Ok(FullContractInfo {
            path: path.ok_or_else(|| {
                ParseContractInfoError("path to contract must be present".to_string())
            })?,
            name,
        })
    }
}