ligen-parser 0.1.18

Ligen (Language Interface Generator) is an extensible automatic binding generator ecosystem.
Documentation 
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

use crate::{prelude::*, parser::ParserConfig};

use ligen_ir::Identifier;
use crate::parser::Parser;

#[derive(Default)]
pub struct IdentifierParser;

impl IdentifierParser {
    pub fn new() -> Self {
        Default::default()
    }
}

impl Parser<String> for IdentifierParser {
    type Output = Identifier;
    fn parse(&self, input: String, config: &ParserConfig) -> Result<Self::Output> {
        self.parse(input.as_str(), config)
    }
}

impl Parser<&str> for IdentifierParser {
    type Output = Identifier;
    fn parse(&self, input: &str, _config: &ParserConfig) -> Result<Self::Output> {
        // TODO: check if ident is valid identifier.
        let name = input.into();
        Ok(Identifier { name })
    }
}

impl Parser<&std::path::Path> for IdentifierParser {
    type Output = Identifier;
    fn parse(&self, input: &std::path::Path, config: &ParserConfig) -> Result<Self::Output> {
        let identifier = input
            .file_stem()
            .ok_or(Error::Message(format!("Failed to parse file stem from path: {}", input.display())))?
            .to_str()
            .ok_or(Error::Message(format!("Failed to parse file stem to string: {}", input.display())))?;
        self.parse(identifier, config)

    }
}

impl Parser<syn::Ident> for IdentifierParser {
    type Output = Identifier;
    fn parse(&self, ident: syn::Ident, _config: &ParserConfig) -> Result<Self::Output> {
        let name = ident.to_string();
        Ok(Self::Output { name })
    }
}

#[cfg(test)]
mod test {
    use super::*;
    use crate::assert::*;
    use ligen_ir::identifier::mock;

    #[test]
    fn identifier() -> Result<()> {
        assert_eq(IdentifierParser, mock::identifier(), "identifier")
    }
}