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use rustc_attr_data_structures::AttributeKind;
use rustc_feature::{AttributeTemplate, template};
use rustc_span::{Symbol, sym};
use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser};
use crate::context::{AcceptContext, Stage};
use crate::parser::ArgParser;
pub(crate) struct AsPtrParser;
impl<S: Stage> SingleAttributeParser<S> for AsPtrParser {
const PATH: &[Symbol] = &[sym::rustc_as_ptr];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepFirst;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
const TEMPLATE: AttributeTemplate = template!(Word);
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
if let Err(span) = args.no_args() {
cx.expected_no_args(span);
}
Some(AttributeKind::AsPtr(cx.attr_span))
}
}
pub(crate) struct PubTransparentParser;
impl<S: Stage> SingleAttributeParser<S> for PubTransparentParser {
const PATH: &[Symbol] = &[sym::rustc_pub_transparent];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepFirst;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
const TEMPLATE: AttributeTemplate = template!(Word);
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
if let Err(span) = args.no_args() {
cx.expected_no_args(span);
}
Some(AttributeKind::PubTransparent(cx.attr_span))
}
}
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