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use super::prelude::*;
pub(crate) struct CrateNameParser;
impl<S: Stage> SingleAttributeParser<S> for CrateNameParser {
const PATH: &[Symbol] = &[sym::crate_name];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
const TEMPLATE: AttributeTemplate = template!(NameValueStr: "name");
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
let ArgParser::NameValue(n) = args else {
cx.expected_name_value(cx.attr_span, None);
return None;
};
let Some(name) = n.value_as_str() else {
cx.expected_string_literal(n.value_span, Some(n.value_as_lit()));
return None;
};
Some(AttributeKind::CrateName {
name,
name_span: n.value_span,
attr_span: cx.attr_span,
style: cx.attr_style,
})
}
}
pub(crate) struct RecursionLimitParser;
impl<S: Stage> SingleAttributeParser<S> for RecursionLimitParser {
const PATH: &[Symbol] = &[sym::recursion_limit];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
const TEMPLATE: AttributeTemplate = template!(NameValueStr: "N", "https://doc.rust-lang.org/reference/attributes/limits.html#the-recursion_limit-attribute");
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
let ArgParser::NameValue(nv) = args else {
cx.expected_name_value(cx.attr_span, None);
return None;
};
Some(AttributeKind::RecursionLimit {
limit: cx.parse_limit_int(nv)?,
attr_span: cx.attr_span,
limit_span: nv.value_span,
})
}
}
pub(crate) struct MoveSizeLimitParser;
impl<S: Stage> SingleAttributeParser<S> for MoveSizeLimitParser {
const PATH: &[Symbol] = &[sym::move_size_limit];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
const TEMPLATE: AttributeTemplate = template!(NameValueStr: "N");
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
let ArgParser::NameValue(nv) = args else {
cx.expected_name_value(cx.attr_span, None);
return None;
};
Some(AttributeKind::MoveSizeLimit {
limit: cx.parse_limit_int(nv)?,
attr_span: cx.attr_span,
limit_span: nv.value_span,
})
}
}
pub(crate) struct TypeLengthLimitParser;
impl<S: Stage> SingleAttributeParser<S> for TypeLengthLimitParser {
const PATH: &[Symbol] = &[sym::type_length_limit];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
const TEMPLATE: AttributeTemplate = template!(NameValueStr: "N");
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
let ArgParser::NameValue(nv) = args else {
cx.expected_name_value(cx.attr_span, None);
return None;
};
Some(AttributeKind::TypeLengthLimit {
limit: cx.parse_limit_int(nv)?,
attr_span: cx.attr_span,
limit_span: nv.value_span,
})
}
}
pub(crate) struct PatternComplexityLimitParser;
impl<S: Stage> SingleAttributeParser<S> for PatternComplexityLimitParser {
const PATH: &[Symbol] = &[sym::pattern_complexity_limit];
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
const TEMPLATE: AttributeTemplate = template!(NameValueStr: "N");
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
let ArgParser::NameValue(nv) = args else {
cx.expected_name_value(cx.attr_span, None);
return None;
};
Some(AttributeKind::PatternComplexityLimit {
limit: cx.parse_limit_int(nv)?,
attr_span: cx.attr_span,
limit_span: nv.value_span,
})
}
}
pub(crate) struct NoCoreParser;
impl<S: Stage> NoArgsAttributeParser<S> for NoCoreParser {
const PATH: &[Symbol] = &[sym::no_core];
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
const CREATE: fn(Span) -> AttributeKind = AttributeKind::NoCore;
}
pub(crate) struct NoStdParser;
impl<S: Stage> NoArgsAttributeParser<S> for NoStdParser {
const PATH: &[Symbol] = &[sym::no_std];
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
const CREATE: fn(Span) -> AttributeKind = AttributeKind::NoStd;
}
pub(crate) struct RustcCoherenceIsCoreParser;
impl<S: Stage> NoArgsAttributeParser<S> for RustcCoherenceIsCoreParser {
const PATH: &[Symbol] = &[sym::rustc_coherence_is_core];
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel;
const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcCoherenceIsCore;
}
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