INNER CODE UNIT · Rust

parse_glue_rename

gluesql/gluesql · macros/src/lib.rs:71

fn parse_glue_rename(attr: &Attribute) -> Option<Result<Option<String>, syn::Error>> {
    if !attr.path().is_ident("glue") {
        return None;
    }
    match attr.parse_args::<MetaNameValue>() {
        Ok(MetaNameValue { path, value, .. }) if path.is_ident("rename") => match value {
            Expr::Lit(ExprLit {
                lit: Lit::Str(s), ..
            }) => Some(Ok(Some(s.value()))),
            other => Some(Err(syn::Error::new(
                other.span(),
                "expected string literal for rename",
            ))),
        },
        Ok(_) => Some(Ok(None)),
        Err(e) => Some(Err(e)),
    }
}

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