litcheck_filecheck/expr/
cli.rs

1use std::str::FromStr;
2
3use litcheck::variables::TypedVariable;
4
5use crate::common::*;
6
7use super::{Value, parser::NumericVarParser};
8
9#[derive(Debug, Clone)]
10pub struct CliVariable(super::Variable<'static>);
11
12impl CliVariable {
13    #[inline(always)]
14    pub const fn name(&self) -> VariableName {
15        self.0.name
16    }
17
18    #[inline(always)]
19    pub const fn value(&self) -> &Value<'static> {
20        &self.0.value
21    }
22}
23
24impl FromStr for CliVariable {
25    type Err = String;
26
27    fn from_str(input: &str) -> Result<Self, Self::Err> {
28        let span = SourceSpan::from_range_unchecked(SourceId::UNKNOWN, 0..input.len());
29        <CliVariable as TypedVariable>::try_parse(Span::new(span, input))
30            .map_err(|err| litcheck::reporting::PrintDiagnostic::new(err).to_string())
31    }
32}
33
34impl TypedVariable for CliVariable {
35    type Key<'a> = Symbol;
36    type Value<'a> = Value<'static>;
37    type Variable<'a> = CliVariable;
38
39    fn try_parse<'input>(input: Span<&'input str>) -> Result<Self::Variable<'input>, Report> {
40        if input.starts_with('#') {
41            let mut parser = NumericVarParser;
42            let var = parser.parse(input)?;
43            let name = var.name;
44            Ok(Self(match var.value {
45                Value::Undef => super::Variable::new(name, Value::Undef),
46                Value::Num(n) => super::Variable::new(name, Value::Num(n)),
47                Value::Str(s) => super::Variable::new(name, Value::Str(Cow::Owned(s.into_owned()))),
48            }))
49        } else {
50            super::Variable::<'static>::try_parse(input).map(Self)
51        }
52    }
53}
litcheck_filecheck/expr/cli.rs

litcheck_filecheck/expr/
cli.rs
