diff options
Diffstat (limited to 'compiler/rustc_resolve/src/diagnostics.rs')
| -rw-r--r-- | compiler/rustc_resolve/src/diagnostics.rs | 127 |
1 files changed, 58 insertions, 69 deletions
diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 3b6603536c7..ef11d4a9a91 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -225,10 +225,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let (name, span) = (ident.name, self.tcx.sess.source_map().guess_head_span(new_binding.span)); - if let Some(s) = self.name_already_seen.get(&name) { - if s == &span { - return; - } + if self.name_already_seen.get(&name) == Some(&span) { + return; } let old_kind = match (ns, old_binding.module()) { @@ -380,20 +378,14 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { suggestion = Some(format!("self as {suggested_name}")) } ImportKind::Single { source, .. } => { - if let Some(pos) = - source.span.hi().0.checked_sub(binding_span.lo().0).map(|pos| pos as usize) + if let Some(pos) = source.span.hi().0.checked_sub(binding_span.lo().0) + && let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(binding_span) + && pos as usize <= snippet.len() { - if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(binding_span) { - if pos <= snippet.len() { - span = binding_span - .with_lo(binding_span.lo() + BytePos(pos as u32)) - .with_hi( - binding_span.hi() - - BytePos(if snippet.ends_with(';') { 1 } else { 0 }), - ); - suggestion = Some(format!(" as {suggested_name}")); - } - } + span = binding_span.with_lo(binding_span.lo() + BytePos(pos)).with_hi( + binding_span.hi() - BytePos(if snippet.ends_with(';') { 1 } else { 0 }), + ); + suggestion = Some(format!(" as {suggested_name}")); } } ImportKind::ExternCrate { source, target, .. } => { @@ -510,13 +502,12 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // If the first element of our path was actually resolved to an // `ExternCrate` (also used for `crate::...`) then no need to issue a // warning, this looks all good! - if let Some(binding) = second_binding { - if let NameBindingKind::Import { import, .. } = binding.kind { - // Careful: we still want to rewrite paths from renamed extern crates. - if let ImportKind::ExternCrate { source: None, .. } = import.kind { - return; - } - } + if let Some(binding) = second_binding + && let NameBindingKind::Import { import, .. } = binding.kind + // Careful: we still want to rewrite paths from renamed extern crates. + && let ImportKind::ExternCrate { source: None, .. } = import.kind + { + return; } let diag = BuiltinLintDiag::AbsPathWithModule(root_span); @@ -1215,12 +1206,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } // #90113: Do not count an inaccessible reexported item as a candidate. - if let NameBindingKind::Import { binding, .. } = name_binding.kind { - if this.is_accessible_from(binding.vis, parent_scope.module) - && !this.is_accessible_from(name_binding.vis, parent_scope.module) - { - return; - } + if let NameBindingKind::Import { binding, .. } = name_binding.kind + && this.is_accessible_from(binding.vis, parent_scope.module) + && !this.is_accessible_from(name_binding.vis, parent_scope.module) + { + return; } let res = name_binding.res(); @@ -1253,14 +1243,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { segms.push(ast::PathSegment::from_ident(ident)); let path = Path { span: name_binding.span, segments: segms, tokens: None }; - if child_accessible { + if child_accessible // Remove invisible match if exists - if let Some(idx) = candidates + && let Some(idx) = candidates .iter() .position(|v: &ImportSuggestion| v.did == did && !v.accessible) - { - candidates.remove(idx); - } + { + candidates.remove(idx); } if candidates.iter().all(|v: &ImportSuggestion| v.did != did) { @@ -1545,19 +1534,19 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { macro_kind.descr_expected(), ), }; - if let crate::NameBindingKind::Import { import, .. } = binding.kind { - if !import.span.is_dummy() { - let note = errors::IdentImporterHereButItIsDesc { - span: import.span, - imported_ident: ident, - imported_ident_desc: &desc, - }; - err.subdiagnostic(note); - // Silence the 'unused import' warning we might get, - // since this diagnostic already covers that import. - self.record_use(ident, binding, Used::Other); - return; - } + if let crate::NameBindingKind::Import { import, .. } = binding.kind + && !import.span.is_dummy() + { + let note = errors::IdentImporterHereButItIsDesc { + span: import.span, + imported_ident: ident, + imported_ident_desc: &desc, + }; + err.subdiagnostic(note); + // Silence the 'unused import' warning we might get, + // since this diagnostic already covers that import. + self.record_use(ident, binding, Used::Other); + return; } let note = errors::IdentInScopeButItIsDesc { imported_ident: ident, @@ -2436,20 +2425,20 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { debug!(found_closing_brace, ?binding_span); let mut removal_span = binding_span; - if found_closing_brace { - // If the binding span ended with a closing brace, as in the below example: - // ie. `use a::b::{c, d};` - // ^ - // Then expand the span of characters to remove to include the previous - // binding's trailing comma. - // ie. `use a::b::{c, d};` - // ^^^ - if let Some(previous_span) = + + // If the binding span ended with a closing brace, as in the below example: + // ie. `use a::b::{c, d};` + // ^ + // Then expand the span of characters to remove to include the previous + // binding's trailing comma. + // ie. `use a::b::{c, d};` + // ^^^ + if found_closing_brace + && let Some(previous_span) = extend_span_to_previous_binding(self.tcx.sess, binding_span) - { - debug!(?previous_span); - removal_span = removal_span.with_lo(previous_span.lo()); - } + { + debug!(?previous_span); + removal_span = removal_span.with_lo(previous_span.lo()); } debug!(?removal_span); @@ -3064,16 +3053,16 @@ impl<'tcx> visit::Visitor<'tcx> for UsePlacementFinder { fn search_for_any_use_in_items(items: &[P<ast::Item>]) -> Option<Span> { for item in items { - if let ItemKind::Use(..) = item.kind { - if is_span_suitable_for_use_injection(item.span) { - let mut lo = item.span.lo(); - for attr in &item.attrs { - if attr.span.eq_ctxt(item.span) { - lo = std::cmp::min(lo, attr.span.lo()); - } + if let ItemKind::Use(..) = item.kind + && is_span_suitable_for_use_injection(item.span) + { + let mut lo = item.span.lo(); + for attr in &item.attrs { + if attr.span.eq_ctxt(item.span) { + lo = std::cmp::min(lo, attr.span.lo()); } - return Some(Span::new(lo, lo, item.span.ctxt(), item.span.parent())); } + return Some(Span::new(lo, lo, item.span.ctxt(), item.span.parent())); } } None |