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Fix false-positive in expr_or_init and in the invalid_from_utf8 lint

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This commit is contained in:
Urgau 2025-03-09 18:49:59 +01:00
parent 3ea711f17e
commit faa5b3f7de
3 changed files with 58 additions and 64 deletions
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16
compiler/rustc_lint/src/context.rs
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@ -6,6 +6,7 @@
use std::cell::Cell;
use std::slice;
use rustc_ast::BindingMode;
use rustc_data_structures::fx::FxIndexMap;
use rustc_data_structures::sync;
use rustc_data_structures::unord::UnordMap;
@ -14,6 +15,7 @@ use rustc_feature::Features;
use rustc_hir::def::Res;
use rustc_hir::def_id::{CrateNum, DefId};
use rustc_hir::definitions::{DefPathData, DisambiguatedDefPathData};
use rustc_hir::{Pat, PatKind};
use rustc_middle::bug;
use rustc_middle::middle::privacy::EffectiveVisibilities;
use rustc_middle::ty::layout::{LayoutError, LayoutOfHelpers, TyAndLayout};
@ -890,7 +892,12 @@ impl<'tcx> LateContext<'tcx> {
}
&& let Some(init) = match parent_node {
hir::Node::Expr(expr) => Some(expr),
hir::Node::LetStmt(hir::LetStmt { init, .. }) => *init,
hir::Node::LetStmt(hir::LetStmt {
init,
// Binding is immutable, init cannot be re-assigned
pat: Pat { kind: PatKind::Binding(BindingMode::NONE, ..), .. },
..
}) => *init,
_ => None,
}
{
@ -935,7 +942,12 @@ impl<'tcx> LateContext<'tcx> {
}
&& let Some(init) = match parent_node {
hir::Node::Expr(expr) => Some(expr),
hir::Node::LetStmt(hir::LetStmt { init, .. }) => *init,
hir::Node::LetStmt(hir::LetStmt {
init,
// Binding is immutable, init cannot be re-assigned
pat: Pat { kind: PatKind::Binding(BindingMode::NONE, ..), .. },
..
}) => *init,
hir::Node::Item(item) => match item.kind {
hir::ItemKind::Const(.., body_id) | hir::ItemKind::Static(.., body_id) => {
Some(self.tcx.hir_body(body_id).value)