31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
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use rustc_attr_data_structures::AttributeKind;
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use rustc_attr_data_structures::AttributeKind::LinkName;
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use rustc_feature::{AttributeTemplate, template};
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use rustc_span::{Symbol, sym};
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use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser};
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use crate::context::{AcceptContext, Stage};
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use crate::parser::ArgParser;
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pub(crate) struct LinkNameParser;
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impl<S: Stage> SingleAttributeParser<S> for LinkNameParser {
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const PATH: &[Symbol] = &[sym::link_name];
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const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepFirst;
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const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
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const TEMPLATE: AttributeTemplate = template!(NameValueStr: "name");
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fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
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let Some(nv) = args.name_value() else {
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cx.expected_name_value(cx.attr_span, None);
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return None;
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};
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let Some(name) = nv.value_as_str() else {
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cx.expected_string_literal(nv.value_span, Some(nv.value_as_lit()));
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return None;
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};
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Some(LinkName { name, span: cx.attr_span })
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}
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}
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