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-rw-r--r--compiler/rustc_lint/src/levels.rs132
1 files changed, 79 insertions, 53 deletions
diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs
index 00e96f20d..1e16ac51e 100644
--- a/compiler/rustc_lint/src/levels.rs
+++ b/compiler/rustc_lint/src/levels.rs
@@ -3,7 +3,7 @@ use crate::late::unerased_lint_store;
use rustc_ast as ast;
use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashMap;
-use rustc_errors::{struct_span_err, Applicability, Diagnostic, LintDiagnosticBuilder, MultiSpan};
+use rustc_errors::{Applicability, Diagnostic, LintDiagnosticBuilder, MultiSpan};
use rustc_hir as hir;
use rustc_hir::{intravisit, HirId};
use rustc_middle::hir::nested_filter;
@@ -21,7 +21,11 @@ use rustc_session::parse::{add_feature_diagnostics, feature_err};
use rustc_session::Session;
use rustc_span::symbol::{sym, Symbol};
use rustc_span::{Span, DUMMY_SP};
-use tracing::debug;
+
+use crate::errors::{
+ MalformedAttribute, MalformedAttributeSub, OverruledAttribute, OverruledAttributeSub,
+ UnknownToolInScopedLint,
+};
fn lint_levels(tcx: TyCtxt<'_>, (): ()) -> LintLevelMap {
let store = unerased_lint_store(tcx);
@@ -186,16 +190,26 @@ impl<'s> LintLevelsBuilder<'s> {
}
};
if !fcw_warning {
- let mut diag_builder = struct_span_err!(
- self.sess,
- src.span(),
- E0453,
- "{}({}) incompatible with previous forbid",
- level.as_str(),
- src.name(),
- );
- decorate_diag(&mut diag_builder);
- diag_builder.emit();
+ self.sess.emit_err(OverruledAttribute {
+ span: src.span(),
+ overruled: src.span(),
+ lint_level: level.as_str().to_string(),
+ lint_source: src.name(),
+ sub: match old_src {
+ LintLevelSource::Default => {
+ OverruledAttributeSub::DefaultSource { id: id.to_string() }
+ }
+ LintLevelSource::Node(_, forbid_source_span, reason) => {
+ OverruledAttributeSub::NodeSource {
+ span: forbid_source_span,
+ reason,
+ }
+ }
+ LintLevelSource::CommandLine(_, _) => {
+ OverruledAttributeSub::CommandLineSource
+ }
+ },
+ });
} else {
self.struct_lint(
FORBIDDEN_LINT_GROUPS,
@@ -266,7 +280,6 @@ impl<'s> LintLevelsBuilder<'s> {
self.cur = self.sets.list.push(LintSet { specs: FxHashMap::default(), parent: prev });
let sess = self.sess;
- let bad_attr = |span| struct_span_err!(sess, span, E0452, "malformed lint attribute input");
for (attr_index, attr) in attrs.iter().enumerate() {
if attr.has_name(sym::automatically_derived) {
self.current_specs_mut().insert(
@@ -317,20 +330,27 @@ impl<'s> LintLevelsBuilder<'s> {
}
reason = Some(rationale);
} else {
- bad_attr(name_value.span)
- .span_label(name_value.span, "reason must be a string literal")
- .emit();
+ sess.emit_err(MalformedAttribute {
+ span: name_value.span,
+ sub: MalformedAttributeSub::ReasonMustBeStringLiteral(
+ name_value.span,
+ ),
+ });
}
// found reason, reslice meta list to exclude it
metas.pop().unwrap();
} else {
- bad_attr(item.span)
- .span_label(item.span, "bad attribute argument")
- .emit();
+ sess.emit_err(MalformedAttribute {
+ span: item.span,
+ sub: MalformedAttributeSub::BadAttributeArgument(item.span),
+ });
}
}
ast::MetaItemKind::List(_) => {
- bad_attr(item.span).span_label(item.span, "bad attribute argument").emit();
+ sess.emit_err(MalformedAttribute {
+ span: item.span,
+ sub: MalformedAttributeSub::BadAttributeArgument(item.span),
+ });
}
}
}
@@ -348,20 +368,21 @@ impl<'s> LintLevelsBuilder<'s> {
let meta_item = match li {
ast::NestedMetaItem::MetaItem(meta_item) if meta_item.is_word() => meta_item,
_ => {
- let mut err = bad_attr(sp);
- let mut add_label = true;
if let Some(item) = li.meta_item() {
if let ast::MetaItemKind::NameValue(_) = item.kind {
if item.path == sym::reason {
- err.span_label(sp, "reason in lint attribute must come last");
- add_label = false;
+ sess.emit_err(MalformedAttribute {
+ span: sp,
+ sub: MalformedAttributeSub::ReasonMustComeLast(sp),
+ });
+ continue;
}
}
}
- if add_label {
- err.span_label(sp, "bad attribute argument");
- }
- err.emit();
+ sess.emit_err(MalformedAttribute {
+ span: sp,
+ sub: MalformedAttributeSub::BadAttributeArgument(sp),
+ });
continue;
}
};
@@ -419,8 +440,10 @@ impl<'s> LintLevelsBuilder<'s> {
sp,
reason,
);
- for id in ids {
- self.insert_spec(*id, (level, src));
+ for &id in ids {
+ if self.check_gated_lint(id, attr.span) {
+ self.insert_spec(id, (level, src));
+ }
}
if let Level::Expect(expect_id) = level {
self.lint_expectations.push((
@@ -485,22 +508,12 @@ impl<'s> LintLevelsBuilder<'s> {
}
&CheckLintNameResult::NoTool => {
- let mut err = struct_span_err!(
- sess,
- tool_ident.map_or(DUMMY_SP, |ident| ident.span),
- E0710,
- "unknown tool name `{}` found in scoped lint: `{}::{}`",
- tool_name.unwrap(),
- tool_name.unwrap(),
- pprust::path_to_string(&meta_item.path),
- );
- if sess.is_nightly_build() {
- err.help(&format!(
- "add `#![register_tool({})]` to the crate root",
- tool_name.unwrap()
- ));
- }
- err.emit();
+ sess.emit_err(UnknownToolInScopedLint {
+ span: tool_ident.map(|ident| ident.span),
+ tool_name: tool_name.unwrap(),
+ lint_name: pprust::path_to_string(&meta_item.path),
+ is_nightly_build: sess.is_nightly_build().then_some(()),
+ });
continue;
}
@@ -766,20 +779,21 @@ impl<'tcx> intravisit::Visitor<'tcx> for LintLevelMapBuilder<'tcx> {
})
}
+ fn visit_expr_field(&mut self, field: &'tcx hir::ExprField<'tcx>) {
+ self.with_lint_attrs(field.hir_id, |builder| {
+ intravisit::walk_expr_field(builder, field);
+ })
+ }
+
fn visit_field_def(&mut self, s: &'tcx hir::FieldDef<'tcx>) {
self.with_lint_attrs(s.hir_id, |builder| {
intravisit::walk_field_def(builder, s);
})
}
- fn visit_variant(
- &mut self,
- v: &'tcx hir::Variant<'tcx>,
- g: &'tcx hir::Generics<'tcx>,
- item_id: hir::HirId,
- ) {
+ fn visit_variant(&mut self, v: &'tcx hir::Variant<'tcx>) {
self.with_lint_attrs(v.id, |builder| {
- intravisit::walk_variant(builder, v, g, item_id);
+ intravisit::walk_variant(builder, v);
})
}
@@ -806,6 +820,18 @@ impl<'tcx> intravisit::Visitor<'tcx> for LintLevelMapBuilder<'tcx> {
intravisit::walk_impl_item(builder, impl_item);
});
}
+
+ fn visit_pat_field(&mut self, field: &'tcx hir::PatField<'tcx>) {
+ self.with_lint_attrs(field.hir_id, |builder| {
+ intravisit::walk_pat_field(builder, field);
+ })
+ }
+
+ fn visit_generic_param(&mut self, p: &'tcx hir::GenericParam<'tcx>) {
+ self.with_lint_attrs(p.hir_id, |builder| {
+ intravisit::walk_generic_param(builder, p);
+ });
+ }
}
pub fn provide(providers: &mut Providers) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-24 19:43:52 +0000