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Use FromStr in default parser

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This commit is contained in:
Robin Hundt 2020-08-28 23:17:28 +02:00
parent 30024d7792
commit 1f295f6f36
1 changed files with 10 additions and 5 deletions
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15
src/fields_parse.rs
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@ -67,15 +67,20 @@ pub fn impl_parse_args_named(
fn create_parser<'a>(
parser_type: &ParserType,
types: impl Iterator<Item = &'a Type>,
mut types: impl Iterator<Item = &'a Type>,
count_args: usize,
) -> quote::__private::TokenStream {
let function_to_parse = match parser_type {
ParserType::Default => match count_args {
1 => {
quote! { (|s: String| Ok((s,))) }
ParserType::Default => match types.next() {
Some(ty) => {
quote! { (|s: String| {
let res = <#ty>::from_str(&s)
.map_err(|e|ParseError::IncorrectFormat({ let e: Box<dyn std::error::Error + Send + Sync + 'static> = e.into(); e }))?;
Ok((res, ))
})
}
}
_ => quote! { compile_error!("Expected 1 argument") },
None => quote! { compile_error!("Expected 1 argument") },
},
ParserType::Split { separator } => parser_with_separator(
&separator.clone().unwrap_or_else(|| " ".to_owned()),