snarkvm_console_program/locator/
parse.rs

1// Copyright 2024 Aleo Network Foundation
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17
18impl<N: Network> Parser for Locator<N> {
19    /// Parses a string into a locator of the form `{program_id}/{resource}`.
20    #[inline]
21    fn parse(string: &str) -> ParserResult<Self> {
22        // Parse the program ID from the string.
23        let (string, id) = ProgramID::parse(string)?;
24        // Parse the "/" and resource from the string.
25        let (string, (_, resource)) = pair(tag("/"), Identifier::parse)(string)?;
26        // Return the locator.
27        Ok((string, Self { id, resource }))
28    }
29}
30
31impl<N: Network> FromStr for Locator<N> {
32    type Err = Error;
33
34    /// Parses a string into a locator.
35    #[inline]
36    fn from_str(string: &str) -> Result<Self> {
37        match Self::parse(string) {
38            Ok((remainder, object)) => {
39                // Ensure the remainder is empty.
40                ensure!(remainder.is_empty(), "Failed to parse string. Found invalid character in: \"{remainder}\"");
41                // Return the object.
42                Ok(object)
43            }
44            Err(error) => bail!("Failed to parse string. {error}"),
45        }
46    }
47}
48
49impl<N: Network> Debug for Locator<N> {
50    /// Prints the locator as a string.
51    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
52        Display::fmt(self, f)
53    }
54}
55
56impl<N: Network> Display for Locator<N> {
57    /// Prints the locator as a string.
58    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
59        write!(f, "{id}/{resource}", id = self.id, resource = self.resource)
60    }
61}
62
63#[cfg(test)]
64mod tests {
65    use super::*;
66    use snarkvm_console_network::MainnetV0;
67
68    type CurrentNetwork = MainnetV0;
69
70    #[test]
71    fn test_import_parse() -> Result<()> {
72        let locator = Locator::<CurrentNetwork>::parse("foo.aleo/compute").unwrap().1;
73        assert_eq!(locator.name(), &Identifier::<CurrentNetwork>::from_str("foo")?);
74        assert_eq!(locator.network(), &Identifier::<CurrentNetwork>::from_str("aleo")?);
75        assert_eq!(locator.resource(), &Identifier::<CurrentNetwork>::from_str("compute")?);
76
77        assert!(Locator::<CurrentNetwork>::parse("foo.aleo").is_err());
78        assert!(Locator::<CurrentNetwork>::parse("foo/compute").is_err());
79
80        Ok(())
81    }
82
83    #[test]
84    fn test_import_display() -> Result<()> {
85        let id = Locator::<CurrentNetwork>::from_str("foo.aleo/compute")?;
86        assert_eq!("foo.aleo/compute", id.to_string());
87
88        assert!(Locator::<CurrentNetwork>::parse("foo.aleo").is_err());
89        assert!(Locator::<CurrentNetwork>::parse("foo/compute").is_err());
90
91        Ok(())
92    }
93}
snarkvm_console_program/locator/parse.rs

snarkvm_console_program/locator/
parse.rs
