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Lint single-use-lifetimes on the AST.

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This commit is contained in:
Camille GILLOT 2022-05-10 21:15:30 +02:00
parent db8a9274a9
commit 563916d698
19 changed files with 364 additions and 469 deletions
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10
compiler/rustc_lint/src/levels.rs
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@ -14,7 +14,7 @@ use rustc_middle::lint::{
use rustc_middle::ty::query::Providers;
use rustc_middle::ty::{RegisteredTools, TyCtxt};
use rustc_session::lint::{
builtin::{self, FORBIDDEN_LINT_GROUPS, UNFULFILLED_LINT_EXPECTATIONS},
builtin::{self, FORBIDDEN_LINT_GROUPS, SINGLE_USE_LIFETIMES, UNFULFILLED_LINT_EXPECTATIONS},
Level, Lint, LintExpectationId, LintId,
};
use rustc_session::parse::{add_feature_diagnostics, feature_err};
@ -259,6 +259,14 @@ impl<'s> LintLevelsBuilder<'s> {
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(
LintId::of(SINGLE_USE_LIFETIMES),
(Level::Allow, LintLevelSource::Default),
);
continue;
}
let level = match Level::from_attr(attr) {
None => continue,
Some(Level::Expect(unstable_id)) if let Some(hir_id) = source_hir_id => {