diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_lint/src/levels.rs | 188 |
1 files changed, 83 insertions, 105 deletions
diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs index 43682ad5a56..65289de980e 100644 --- a/compiler/rustc_lint/src/levels.rs +++ b/compiler/rustc_lint/src/levels.rs @@ -695,59 +695,20 @@ impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P> { let name = pprust::path_to_string(&meta_item.path); let lint_result = self.store.check_lint_name(&name, tool_name, self.registered_tools); - match &lint_result { + + let (ids, name) = match lint_result { CheckLintNameResult::Ok(ids) => { - // This checks for instances where the user writes - // `#[expect(unfulfilled_lint_expectations)]` in that case we want to avoid - // overriding the lint level but instead add an expectation that can't be - // fulfilled. The lint message will include an explanation, that the - // `unfulfilled_lint_expectations` lint can't be expected. - if let Level::Expect(expect_id) = level { - // The `unfulfilled_lint_expectations` lint is not part of any lint - // groups. Therefore. we only need to check the slice if it contains a - // single lint. - let is_unfulfilled_lint_expectations = match ids { - [lint] => *lint == LintId::of(UNFULFILLED_LINT_EXPECTATIONS), - _ => false, - }; - self.provider.push_expectation( - expect_id, - LintExpectation::new( - reason, - sp, - is_unfulfilled_lint_expectations, - tool_name, - ), - ); - } - let src = LintLevelSource::Node { - name: meta_item - .path - .segments - .last() - .expect("empty lint name") - .ident - .name, - span: sp, - reason, - }; - for &id in *ids { - if self.check_gated_lint(id, attr.span, false) { - self.insert_spec(id, (level, src)); - } - } + let name = + meta_item.path.segments.last().expect("empty lint name").ident.name; + (ids, name) } CheckLintNameResult::Tool(ids, new_lint_name) => { - let src = match new_lint_name { + let name = match new_lint_name { None => { let complete_name = &format!("{}::{}", tool_ident.unwrap().name, name); - LintLevelSource::Node { - name: Symbol::intern(complete_name), - span: sp, - reason, - } + Symbol::intern(complete_name) } Some(new_lint_name) => { self.emit_span_lint( @@ -756,27 +717,13 @@ impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P> { DeprecatedLintName { name, suggestion: sp, - replace: new_lint_name, + replace: &new_lint_name, }, ); - LintLevelSource::Node { - name: Symbol::intern(new_lint_name), - span: sp, - reason, - } + Symbol::intern(&new_lint_name) } }; - for &id in *ids { - if self.check_gated_lint(id, attr.span, false) { - self.insert_spec(id, (level, src)); - } - } - if let Level::Expect(expect_id) = level { - self.provider.push_expectation( - expect_id, - LintExpectation::new(reason, sp, false, tool_name), - ); - } + (ids, name) } CheckLintNameResult::MissingTool => { @@ -784,9 +731,10 @@ impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P> { // exist in the tool or the code was not compiled with the tool and // therefore the lint was never added to the `LintStore`. To detect // this is the responsibility of the lint tool. + continue; } - &CheckLintNameResult::NoTool => { + CheckLintNameResult::NoTool => { sess.dcx().emit_err(UnknownToolInScopedLint { span: tool_ident.map(|ident| ident.span), tool_name: tool_name.unwrap(), @@ -796,58 +744,88 @@ impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P> { continue; } - _ if !self.lint_added_lints => {} - CheckLintNameResult::Renamed(ref replace) => { - let suggestion = - RenamedLintSuggestion::WithSpan { suggestion: sp, replace }; - let name = tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); - let lint = RenamedLint { name: name.as_str(), suggestion }; - self.emit_span_lint(RENAMED_AND_REMOVED_LINTS, sp.into(), lint); + if self.lint_added_lints { + let suggestion = + RenamedLintSuggestion::WithSpan { suggestion: sp, replace }; + let name = + tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); + let lint = RenamedLint { name: name.as_str(), suggestion }; + self.emit_span_lint(RENAMED_AND_REMOVED_LINTS, sp.into(), lint); + } + + // If this lint was renamed, apply the new lint instead of ignoring the + // attribute. Ignore any errors or warnings that happen because the new + // name is inaccurate. + // NOTE: `new_name` already includes the tool name, so we don't + // have to add it again. + let CheckLintNameResult::Ok(ids) = + self.store.check_lint_name(replace, None, self.registered_tools) + else { + panic!("renamed lint does not exist: {replace}"); + }; + + (ids, Symbol::intern(&replace)) } CheckLintNameResult::Removed(ref reason) => { - let name = tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); - let lint = RemovedLint { name: name.as_str(), reason }; - self.emit_span_lint(RENAMED_AND_REMOVED_LINTS, sp.into(), lint); + if self.lint_added_lints { + let name = + tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); + let lint = RemovedLint { name: name.as_str(), reason }; + self.emit_span_lint(RENAMED_AND_REMOVED_LINTS, sp.into(), lint); + } + continue; } CheckLintNameResult::NoLint(suggestion) => { - let name = tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); - let suggestion = suggestion.map(|(replace, from_rustc)| { - UnknownLintSuggestion::WithSpan { suggestion: sp, replace, from_rustc } - }); - let lint = UnknownLint { name, suggestion }; - self.emit_span_lint(UNKNOWN_LINTS, sp.into(), lint); - } - } - // If this lint was renamed, apply the new lint instead of ignoring the attribute. - // This happens outside of the match because the new lint should be applied even if - // we don't warn about the name change. - if let CheckLintNameResult::Renamed(new_name) = lint_result { - // Ignore any errors or warnings that happen because the new name is inaccurate - // NOTE: `new_name` already includes the tool name, so we don't have to add it - // again. - let CheckLintNameResult::Ok(ids) = - self.store.check_lint_name(&new_name, None, self.registered_tools) - else { - panic!("renamed lint does not exist: {new_name}"); - }; - - let src = - LintLevelSource::Node { name: Symbol::intern(&new_name), span: sp, reason }; - for &id in ids { - if self.check_gated_lint(id, attr.span, false) { - self.insert_spec(id, (level, src)); + if self.lint_added_lints { + let name = + tool_ident.map(|tool| format!("{tool}::{name}")).unwrap_or(name); + let suggestion = suggestion.map(|(replace, from_rustc)| { + UnknownLintSuggestion::WithSpan { + suggestion: sp, + replace, + from_rustc, + } + }); + let lint = UnknownLint { name, suggestion }; + self.emit_span_lint(UNKNOWN_LINTS, sp.into(), lint); } + continue; } - if let Level::Expect(expect_id) = level { - self.provider.push_expectation( - expect_id, - LintExpectation::new(reason, sp, false, tool_name), - ); + }; + + let src = LintLevelSource::Node { name, span: sp, reason }; + for &id in ids { + if self.check_gated_lint(id, attr.span, false) { + self.insert_spec(id, (level, src)); } } + + // This checks for instances where the user writes + // `#[expect(unfulfilled_lint_expectations)]` in that case we want to avoid + // overriding the lint level but instead add an expectation that can't be + // fulfilled. The lint message will include an explanation, that the + // `unfulfilled_lint_expectations` lint can't be expected. + if let Level::Expect(expect_id) = level { + // The `unfulfilled_lint_expectations` lint is not part of any lint + // groups. Therefore. we only need to check the slice if it contains a + // single lint. + let is_unfulfilled_lint_expectations = match ids { + [lint] => *lint == LintId::of(UNFULFILLED_LINT_EXPECTATIONS), + _ => false, + }; + self.provider.push_expectation( + expect_id, + LintExpectation::new( + reason, + sp, + is_unfulfilled_lint_expectations, + tool_name, + ), + ); + } } } |