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Don't lint DequeVec in manual_memcpy

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This commit is contained in:
Jason Newcomb 2022-01-05 12:15:10 -05:00
parent 0e28e38e36
commit 14f34454b0
1 changed files with 3 additions and 5 deletions
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8
clippy_lints/src/loops/manual_memcpy.rs
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@ -2,7 +2,6 @@ use super::{IncrementVisitor, InitializeVisitor, MANUAL_MEMCPY};
use clippy_utils::diagnostics::span_lint_and_sugg;
use clippy_utils::source::snippet;
use clippy_utils::sugg::Sugg;
use clippy_utils::ty::is_type_diagnostic_item;
use clippy_utils::{get_enclosing_block, higher, path_to_local, sugg};
use if_chain::if_chain;
use rustc_ast::ast;
@ -325,13 +324,12 @@ struct Start<'hir> {
}
fn is_slice_like<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'_>) -> bool {
let is_slice = match ty.kind() {
match ty.kind() {
ty::Adt(adt, _) => cx.tcx.is_diagnostic_item(sym::Vec, adt.did),
ty::Ref(_, subty, _) => is_slice_like(cx, subty),
ty::Slice(..) | ty::Array(..) => true,
_ => false,
};
is_slice || is_type_diagnostic_item(cx, ty, sym::Vec) || is_type_diagnostic_item(cx, ty, sym::VecDeque)
}
}
fn fetch_cloned_expr<'tcx>(expr: &'tcx Expr<'tcx>) -> &'tcx Expr<'tcx> {