bjoernager/rust
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Merge commit 'b40ea209e7' into clippyup

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flip1995 2021-04-08 17:50:13 +02:00
parent cde58f7174
commit f6d1f368db
349 changed files with 10420 additions and 6013 deletions
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3
clippy_lints/src/methods/useless_asref.rs
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@ -10,12 +10,11 @@ use rustc_lint::LateContext;
use super::USELESS_ASREF;
/// Checks for the `USELESS_ASREF` lint.
pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, call_name: &str, as_ref_args: &[hir::Expr<'_>]) {
pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, call_name: &str, recvr: &hir::Expr<'_>) {
// when we get here, we've already checked that the call name is "as_ref" or "as_mut"
// check if the call is to the actual `AsRef` or `AsMut` trait
if match_trait_method(cx, expr, &paths::ASREF_TRAIT) || match_trait_method(cx, expr, &paths::ASMUT_TRAIT) {
// check if the type after `as_ref` or `as_mut` is the same as before
let recvr = &as_ref_args[0];
let rcv_ty = cx.typeck_results().expr_ty(recvr);
let res_ty = cx.typeck_results().expr_ty(expr);
let (base_res_ty, res_depth) = walk_ptrs_ty_depth(res_ty);