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@ -880,7 +880,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> {
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(pair, r)
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})
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.unzip();
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self.record_late_bound_vars(hir_id, binders.clone());
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self.record_late_bound_vars(hir_id, binders);
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// Even if there are no lifetimes defined here, we still wrap it in a binder
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// scope. If there happens to be a nested poly trait ref (an error), that
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// will be `Concatenating` anyways, so we don't have to worry about the depth
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@ -856,7 +856,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
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}
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PatKind::InlineConstant { ref subpattern, .. } => {
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self.visit_primary_bindings(subpattern, pattern_user_ty.clone(), f)
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self.visit_primary_bindings(subpattern, pattern_user_ty, f)
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}
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PatKind::Leaf { ref subpatterns } => {
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@ -1750,7 +1750,7 @@ pub(crate) fn markdown_links<'md, R>(
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}
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// do not actually include braces in the span
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let range = (open_brace + 1)..close_brace;
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MarkdownLinkRange::Destination(range.clone())
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MarkdownLinkRange::Destination(range)
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};
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let span_for_offset_forward = |span: Range<usize>, open: u8, close: u8| {
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@ -1786,7 +1786,7 @@ pub(crate) fn markdown_links<'md, R>(
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}
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// do not actually include braces in the span
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let range = (open_brace + 1)..close_brace;
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MarkdownLinkRange::Destination(range.clone())
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MarkdownLinkRange::Destination(range)
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};
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let mut broken_link_callback = |link: BrokenLink<'md>| Some((link.reference, "".into()));
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@ -25,91 +25,85 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) {
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Some(sp) => sp,
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None => item.attr_span(tcx),
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};
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tcx.struct_span_lint_hir(
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crate::lint::INVALID_HTML_TAGS,
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hir_id,
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sp,
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msg.to_string(),
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|lint| {
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use rustc_lint_defs::Applicability;
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// If a tag looks like `<this>`, it might actually be a generic.
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// We don't try to detect stuff `<like, this>` because that's not valid HTML,
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// and we don't try to detect stuff `<like this>` because that's not valid Rust.
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let mut generics_end = range.end;
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if let Some(Some(mut generics_start)) = (is_open_tag
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&& dox[..generics_end].ends_with('>'))
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.then(|| extract_path_backwards(&dox, range.start))
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tcx.struct_span_lint_hir(crate::lint::INVALID_HTML_TAGS, hir_id, sp, msg, |lint| {
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use rustc_lint_defs::Applicability;
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// If a tag looks like `<this>`, it might actually be a generic.
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// We don't try to detect stuff `<like, this>` because that's not valid HTML,
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// and we don't try to detect stuff `<like this>` because that's not valid Rust.
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let mut generics_end = range.end;
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if let Some(Some(mut generics_start)) = (is_open_tag
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&& dox[..generics_end].ends_with('>'))
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.then(|| extract_path_backwards(&dox, range.start))
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{
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while generics_start != 0
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&& generics_end < dox.len()
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&& dox.as_bytes()[generics_start - 1] == b'<'
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&& dox.as_bytes()[generics_end] == b'>'
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{
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while generics_start != 0
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&& generics_end < dox.len()
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&& dox.as_bytes()[generics_start - 1] == b'<'
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&& dox.as_bytes()[generics_end] == b'>'
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{
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generics_end += 1;
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generics_start -= 1;
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if let Some(new_start) = extract_path_backwards(&dox, generics_start) {
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generics_start = new_start;
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}
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if let Some(new_end) = extract_path_forward(&dox, generics_end) {
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generics_end = new_end;
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}
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generics_end += 1;
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generics_start -= 1;
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if let Some(new_start) = extract_path_backwards(&dox, generics_start) {
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generics_start = new_start;
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}
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if let Some(new_end) = extract_path_forward(&dox, generics_end) {
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generics_end = new_end;
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}
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let generics_sp = match source_span_for_markdown_range(
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tcx,
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&dox,
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&(generics_start..generics_end),
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&item.attrs.doc_strings,
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) {
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Some(sp) => sp,
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None => item.attr_span(tcx),
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};
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// Sometimes, we only extract part of a path. For example, consider this:
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//
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// <[u32] as IntoIter<u32>>::Item
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// ^^^^^ unclosed HTML tag `u32`
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//
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// We don't have any code for parsing fully-qualified trait paths.
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// In theory, we could add it, but doing it correctly would require
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// parsing the entire path grammar, which is problematic because of
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// overlap between the path grammar and Markdown.
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//
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// The example above shows that ambiguity. Is `[u32]` intended to be an
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// intra-doc link to the u32 primitive, or is it intended to be a slice?
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//
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// If the below conditional were removed, we would suggest this, which is
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// not what the user probably wants.
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//
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// <[u32] as `IntoIter<u32>`>::Item
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//
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// We know that the user actually wants to wrap the whole thing in a code
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// block, but the only reason we know that is because `u32` does not, in
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// fact, implement IntoIter. If the example looks like this:
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//
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// <[Vec<i32>] as IntoIter<i32>::Item
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//
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// The ideal fix would be significantly different.
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if (generics_start > 0 && dox.as_bytes()[generics_start - 1] == b'<')
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|| (generics_end < dox.len() && dox.as_bytes()[generics_end] == b'>')
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{
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return lint;
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}
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// multipart form is chosen here because ``Vec<i32>`` would be confusing.
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lint.multipart_suggestion(
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"try marking as source code",
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vec![
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(generics_sp.shrink_to_lo(), String::from("`")),
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(generics_sp.shrink_to_hi(), String::from("`")),
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],
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Applicability::MaybeIncorrect,
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);
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}
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if let Some(new_end) = extract_path_forward(&dox, generics_end) {
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generics_end = new_end;
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}
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let generics_sp = match source_span_for_markdown_range(
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tcx,
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&dox,
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&(generics_start..generics_end),
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&item.attrs.doc_strings,
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) {
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Some(sp) => sp,
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None => item.attr_span(tcx),
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};
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// Sometimes, we only extract part of a path. For example, consider this:
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//
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// <[u32] as IntoIter<u32>>::Item
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// ^^^^^ unclosed HTML tag `u32`
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//
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// We don't have any code for parsing fully-qualified trait paths.
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// In theory, we could add it, but doing it correctly would require
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// parsing the entire path grammar, which is problematic because of
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// overlap between the path grammar and Markdown.
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//
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// The example above shows that ambiguity. Is `[u32]` intended to be an
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// intra-doc link to the u32 primitive, or is it intended to be a slice?
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//
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// If the below conditional were removed, we would suggest this, which is
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// not what the user probably wants.
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//
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// <[u32] as `IntoIter<u32>`>::Item
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//
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// We know that the user actually wants to wrap the whole thing in a code
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// block, but the only reason we know that is because `u32` does not, in
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// fact, implement IntoIter. If the example looks like this:
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//
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// <[Vec<i32>] as IntoIter<i32>::Item
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//
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// The ideal fix would be significantly different.
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if (generics_start > 0 && dox.as_bytes()[generics_start - 1] == b'<')
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|| (generics_end < dox.len() && dox.as_bytes()[generics_end] == b'>')
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{
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return lint;
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}
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// multipart form is chosen here because ``Vec<i32>`` would be confusing.
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lint.multipart_suggestion(
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"try marking as source code",
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vec![
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(generics_sp.shrink_to_lo(), String::from("`")),
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(generics_sp.shrink_to_hi(), String::from("`")),
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],
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Applicability::MaybeIncorrect,
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);
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}
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lint
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},
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);
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lint
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});
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};
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let mut tags = Vec::new();
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