19 lines
386 B
Rust
19 lines
386 B
Rust
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#[derive(Debug, thiserror::Error)]
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#[error("missing field '{0}'")]
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pub struct FieldErr(pub &'static str);
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pub type Field<T> = Result<T, FieldErr>;
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// TODO this trait is really ad-hoc and has awful naming...
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pub trait OptionalString {
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fn str(self) -> Option<String>;
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}
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impl OptionalString for Field<&str> {
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fn str(self) -> Option<String> {
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self.ok().map(|x| x.to_string())
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}
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}
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