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Merge commit 'edb720b199' into clippyup

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This commit is contained in:
Philipp Krones 2023-11-16 19:13:24 +01:00
parent 9aa2330e41
commit 6246f0446a
326 changed files with 10349 additions and 10380 deletions
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61
clippy_lints/src/len_zero.rs
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@ -2,7 +2,6 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_and_the
use clippy_utils::source::snippet_with_context;
use clippy_utils::sugg::Sugg;
use clippy_utils::{get_item_name, get_parent_as_impl, is_lint_allowed, peel_ref_operators};
use if_chain::if_chain;
use rustc_ast::ast::LitKind;
use rustc_errors::Applicability;
use rustc_hir::def::Res;
@ -15,9 +14,9 @@ use rustc_hir::{
use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty::{self, AssocKind, FnSig, Ty};
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::{Span, Symbol};
use rustc_span::source_map::Spanned;
use rustc_span::symbol::sym;
use rustc_span::{Span, Symbol};
declare_clippy_lint! {
/// ### What it does
@ -132,37 +131,33 @@ impl<'tcx> LateLintPass<'tcx> for LenZero {
}
fn check_impl_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx ImplItem<'_>) {
if_chain! {
if item.ident.name == sym::len;
if let ImplItemKind::Fn(sig, _) = &item.kind;
if sig.decl.implicit_self.has_implicit_self();
if sig.decl.inputs.len() == 1;
if cx.effective_visibilities.is_exported(item.owner_id.def_id);
if matches!(sig.decl.output, FnRetTy::Return(_));
if let Some(imp) = get_parent_as_impl(cx.tcx, item.hir_id());
if imp.of_trait.is_none();
if let TyKind::Path(ty_path) = &imp.self_ty.kind;
if let Some(ty_id) = cx.qpath_res(ty_path, imp.self_ty.hir_id).opt_def_id();
if let Some(local_id) = ty_id.as_local();
let ty_hir_id = cx.tcx.hir().local_def_id_to_hir_id(local_id);
if !is_lint_allowed(cx, LEN_WITHOUT_IS_EMPTY, ty_hir_id);
if let Some(output) = parse_len_output(
cx,
cx.tcx.fn_sig(item.owner_id).instantiate_identity().skip_binder()
);
then {
let (name, kind) = match cx.tcx.hir().find(ty_hir_id) {
Some(Node::ForeignItem(x)) => (x.ident.name, "extern type"),
Some(Node::Item(x)) => match x.kind {
ItemKind::Struct(..) => (x.ident.name, "struct"),
ItemKind::Enum(..) => (x.ident.name, "enum"),
ItemKind::Union(..) => (x.ident.name, "union"),
_ => (x.ident.name, "type"),
}
_ => return,
};
check_for_is_empty(cx, sig.span, sig.decl.implicit_self, output, ty_id, name, kind)
}
if item.ident.name == sym::len
&& let ImplItemKind::Fn(sig, _) = &item.kind
&& sig.decl.implicit_self.has_implicit_self()
&& sig.decl.inputs.len() == 1
&& cx.effective_visibilities.is_exported(item.owner_id.def_id)
&& matches!(sig.decl.output, FnRetTy::Return(_))
&& let Some(imp) = get_parent_as_impl(cx.tcx, item.hir_id())
&& imp.of_trait.is_none()
&& let TyKind::Path(ty_path) = &imp.self_ty.kind
&& let Some(ty_id) = cx.qpath_res(ty_path, imp.self_ty.hir_id).opt_def_id()
&& let Some(local_id) = ty_id.as_local()
&& let ty_hir_id = cx.tcx.hir().local_def_id_to_hir_id(local_id)
&& !is_lint_allowed(cx, LEN_WITHOUT_IS_EMPTY, ty_hir_id)
&& let Some(output) =
parse_len_output(cx, cx.tcx.fn_sig(item.owner_id).instantiate_identity().skip_binder())
{
let (name, kind) = match cx.tcx.hir().find(ty_hir_id) {
Some(Node::ForeignItem(x)) => (x.ident.name, "extern type"),
Some(Node::Item(x)) => match x.kind {
ItemKind::Struct(..) => (x.ident.name, "struct"),
ItemKind::Enum(..) => (x.ident.name, "enum"),
ItemKind::Union(..) => (x.ident.name, "union"),
_ => (x.ident.name, "type"),
},
_ => return,
};
check_for_is_empty(cx, sig.span, sig.decl.implicit_self, output, ty_id, name, kind);
}
}