assert_type_match/
variants.rsuse crate::flags::{flag_to_bool, merge_flags, Flag, ParseFlag};
use syn::parse::{Parse, ParseStream};
use syn::Token;
#[derive(Default)]
pub(crate) struct VariantArgs {
skip: Flag,
}
impl VariantArgs {
pub fn skip(&self) -> bool {
flag_to_bool(&self.skip)
}
pub fn merge(self, other: Self) -> syn::Result<Self> {
let skip = merge_flags::<kw::skip>(self.skip, other.skip)?;
Ok(Self { skip })
}
}
impl Parse for VariantArgs {
fn parse(input: ParseStream) -> syn::Result<Self> {
let mut this = Self { skip: None };
loop {
let lookahead = input.lookahead1();
if lookahead.peek(kw::skip) {
this.skip = input.parse_flag::<kw::skip>()?;
} else {
return Err(lookahead.error());
}
if input.peek(Token![,]) {
input.parse::<Token![,]>()?;
if input.is_empty() {
break;
}
} else {
break;
}
}
Ok(this)
}
}
mod kw {
syn::custom_keyword!(skip);
}