Method hoisted_preloop

crates/csskit_derives/src/parse.rs:764–801

(&self, wc: &mut WhereCollector)

	}

	fn hoisted_preloop(&self, wc: &mut WhereCollector) -> TokenStream {
		let atom_preloop = match self.shared_fields.as_slice() {
			[] => TokenStream::new(),
			[field] => {
				let inner = field.atom_parse_if_peek();
				quote! { { let c = p.peek_n(1); #inner } }
			}
			_ => {
				let parse_steps: TokenStream = self.shared_fields.iter().map(|f| f.atom_match_arm()).collect();
				quote! {
					loop {
						let c = p.peek_n(1);
						#parse_steps
						break;
					}
				}
			}
		};

		let type_preloop = if self.shared_type_fields.is_empty() {
			TokenStream::new()
		} else {
			let parse_steps: TokenStream = self
				.shared_type_fields
				.iter()
				.map(|f| f.parse_normal_tokens(FieldParseMode::OneMustOccur, wc))
				.collect();
			quote! {
				loop {
					let c = p.peek_n(1);
					#parse_steps
					break;
				}
			}
		};

		quote! { #atom_preloop #type_preloop }
	}
}

/// Shared-prefix plan: variants in a `PeekedFallback` group all start with the