mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
Build suggestion within visitor + add more tests
This commit is contained in:
ThibsG
parent
5ed93af9c4
commit
b38f173aa3
6 changed files with 359 additions and 298 deletions
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@ -1,17 +1,17 @@
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use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg, span_lint_and_then};
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use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg};
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use clippy_utils::source::{snippet, snippet_with_applicability};
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use clippy_utils::ty::is_type_diagnostic_item;
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use clippy_utils::{is_trait_method, strip_pat_refs};
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use clippy_utils::{get_parent_expr_for_hir, is_trait_method, strip_pat_refs};
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use if_chain::if_chain;
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use rustc_errors::Applicability;
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use rustc_hir as hir;
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use rustc_hir::{self, HirId, HirIdMap, HirIdSet, PatKind};
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use rustc_hir::{self, Expr, ExprKind, HirId, PatKind};
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use rustc_infer::infer::TyCtxtInferExt;
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use rustc_lint::LateContext;
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use rustc_middle::hir::place::ProjectionKind;
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use rustc_middle::mir::FakeReadCause;
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use rustc_middle::mir::{FakeReadCause, Mutability};
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use rustc_middle::ty;
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use rustc_span::source_map::Span;
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use rustc_span::source_map::{BytePos, Span};
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use rustc_span::symbol::sym;
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use rustc_typeck::expr_use_visitor::{Delegate, ExprUseVisitor, PlaceBase, PlaceWithHirId};
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@ -46,42 +46,12 @@ pub(super) fn check<'tcx>(
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if let hir::ExprKind::Closure(_, _, body_id, ..) = search_arg.kind;
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let closure_body = cx.tcx.hir().body(body_id);
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if let Some(closure_arg) = closure_body.params.get(0);
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then {
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if let hir::PatKind::Ref(..) = closure_arg.pat.kind {
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Some((search_snippet.replacen('&', "", 1), None))
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Some(search_snippet.replacen('&', "", 1))
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} else if let PatKind::Binding(..) = strip_pat_refs(closure_arg.pat).kind {
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let mut visitor = DerefDelegate {
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cx,
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set: HirIdSet::default(),
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deref_suggs: HirIdMap::default(),
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borrow_suggs: HirIdMap::default()
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};
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let fn_def_id = cx.tcx.hir().local_def_id(search_arg.hir_id);
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cx.tcx.infer_ctxt().enter(|infcx| {
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ExprUseVisitor::new(
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&mut visitor, &infcx, fn_def_id, cx.param_env, cx.typeck_results()
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).consume_body(closure_body);
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});
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let replacements = if visitor.set.is_empty() {
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None
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} else {
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let mut deref_suggs = Vec::new();
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let mut borrow_suggs = Vec::new();
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for node in visitor.set {
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let span = cx.tcx.hir().span(node);
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if let Some(sugg) = visitor.deref_suggs.get(&node) {
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deref_suggs.push((span, sugg.clone()));
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}
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if let Some(sugg) = visitor.borrow_suggs.get(&node) {
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borrow_suggs.push((span, sugg.clone()));
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}
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}
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Some((deref_suggs, borrow_suggs))
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};
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Some((search_snippet.to_string(), replacements))
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get_closure_suggestion(cx, search_arg, closure_body)
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.or_else(|| Some(search_snippet.to_string()))
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} else {
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None
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}
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@ -90,38 +60,35 @@ pub(super) fn check<'tcx>(
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}
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};
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// add note if not multi-line
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let (closure_snippet, replacements) = any_search_snippet
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.as_ref()
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.map_or((&*search_snippet, None), |s| (&s.0, s.1.clone()));
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let (span, help, sugg) = if is_some {
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(
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if is_some {
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span_lint_and_sugg(
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cx,
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SEARCH_IS_SOME,
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method_span.with_hi(expr.span.hi()),
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&msg,
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"use `any()` instead",
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format!("any({})", closure_snippet),
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)
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format!(
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"any({})",
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any_search_snippet.as_ref().map_or(&*search_snippet, String::as_str)
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),
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Applicability::MachineApplicable,
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);
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} else {
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let iter = snippet(cx, search_recv.span, "..");
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(
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span_lint_and_sugg(
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cx,
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SEARCH_IS_SOME,
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expr.span,
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&msg,
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"use `!_.any()` instead",
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format!("!{}.any({})", iter, closure_snippet),
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)
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};
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span_lint_and_then(cx, SEARCH_IS_SOME, span, &msg, |db| {
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if let Some((deref_suggs, borrow_suggs)) = replacements {
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db.span_suggestion(span, help, sugg, Applicability::MaybeIncorrect);
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if !deref_suggs.is_empty() {
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db.multipart_suggestion("...and remove deref", deref_suggs, Applicability::MaybeIncorrect);
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format!(
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"!{}.any({})",
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iter,
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any_search_snippet.as_ref().map_or(&*search_snippet, String::as_str)
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),
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Applicability::MachineApplicable,
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);
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}
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if !borrow_suggs.is_empty() {
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db.multipart_suggestion("...and borrow variable", borrow_suggs, Applicability::MaybeIncorrect);
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}
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} else {
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db.span_suggestion(span, help, sugg, Applicability::MachineApplicable);
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}
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});
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} else {
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let hint = format!(
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"this is more succinctly expressed by calling `any()`{}",
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@ -184,53 +151,86 @@ pub(super) fn check<'tcx>(
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}
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}
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fn get_closure_suggestion<'tcx>(
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cx: &LateContext<'_>,
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search_arg: &'tcx hir::Expr<'_>,
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closure_body: &hir::Body<'_>,
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) -> Option<String> {
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let mut visitor = DerefDelegate {
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cx,
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closure_span: search_arg.span,
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next_pos: None,
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suggestion_start: String::new(),
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suggestion_end: String::new(),
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};
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let fn_def_id = cx.tcx.hir().local_def_id(search_arg.hir_id);
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cx.tcx.infer_ctxt().enter(|infcx| {
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ExprUseVisitor::new(&mut visitor, &infcx, fn_def_id, cx.param_env, cx.typeck_results())
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.consume_body(closure_body);
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});
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if visitor.suggestion_start.is_empty() {
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None
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} else {
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Some(format!("{}{}", visitor.suggestion_start, visitor.suggestion_end))
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}
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}
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struct DerefDelegate<'a, 'tcx> {
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cx: &'a LateContext<'tcx>,
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set: HirIdSet,
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deref_suggs: HirIdMap<String>,
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borrow_suggs: HirIdMap<String>,
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closure_span: Span,
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next_pos: Option<BytePos>,
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suggestion_start: String,
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suggestion_end: String,
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}
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impl<'tcx> Delegate<'tcx> for DerefDelegate<'_, 'tcx> {
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fn consume(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId) {
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if let PlaceBase::Local(id) = cmt.place.base {
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let map = self.cx.tcx.hir();
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if cmt.place.projections.is_empty() {
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self.set.insert(cmt.hir_id);
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} else {
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let mut replacement_str = map.name(id).to_string();
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let last_deref = cmt
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.place
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.projections
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.iter()
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.rposition(|proj| proj.kind == ProjectionKind::Deref);
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if let Some(pos) = last_deref {
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let mut projections = cmt.place.projections.clone();
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projections.truncate(pos);
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for item in projections {
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if item.kind == ProjectionKind::Deref {
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replacement_str = format!("*{}", replacement_str);
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}
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}
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self.set.insert(cmt.hir_id);
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self.deref_suggs.insert(cmt.hir_id, replacement_str);
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}
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}
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}
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}
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fn consume(&mut self, _: &PlaceWithHirId<'tcx>, _: HirId) {}
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fn borrow(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId, _: ty::BorrowKind) {
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if let PlaceBase::Local(id) = cmt.place.base {
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let map = self.cx.tcx.hir();
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if cmt.place.projections.is_empty() {
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let replacement_str = format!("&{}", map.name(id).to_string());
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self.set.insert(cmt.hir_id);
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self.borrow_suggs.insert(cmt.hir_id, replacement_str);
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let ident_str = map.name(id).to_string();
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let span = map.span(cmt.hir_id);
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let start_span = if let Some(next_pos) = self.next_pos {
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Span::new(next_pos, span.lo(), span.ctxt())
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} else {
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let mut replacement_str = map.name(id).to_string();
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self.closure_span.until(span)
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};
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let start_snip = snippet(self.cx, start_span, "..");
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let end_span = Span::new(span.hi(), self.closure_span.hi(), span.ctxt());
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let end_snip = snippet(self.cx, end_span, "..");
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if cmt.place.projections.is_empty() {
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self.suggestion_start.push_str(&format!("{}&{}", start_snip, ident_str));
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} else {
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let parent_expr = get_parent_expr_for_hir(self.cx, cmt.hir_id);
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if let Some(Expr { hir_id: _, kind, .. }) = parent_expr {
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if let ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args, _) = kind {
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let args_to_handle = args.iter().filter(|arg| arg.hir_id == cmt.hir_id).collect::<Vec<_>>();
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if !args_to_handle.is_empty() {
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for arg in &args_to_handle {
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let arg_ty_kind = self.cx.typeck_results().expr_ty(arg).kind();
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if matches!(arg_ty_kind, ty::Ref(_, _, Mutability::Not)) {
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let start_span = if let Some(next_pos) = self.next_pos {
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Span::new(next_pos, span.lo(), span.ctxt())
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} else {
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self.closure_span.until(span)
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};
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let start_snip = snippet(self.cx, start_span, "..");
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self.suggestion_start.push_str(&format!("{}&{}", start_snip, ident_str));
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self.suggestion_end = end_snip.to_string();
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self.next_pos = Some(span.hi());
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}
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}
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return;
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}
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}
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}
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let mut replacement_str = ident_str;
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let last_deref = cmt
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.place
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.projections
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@ -246,11 +246,13 @@ impl<'tcx> Delegate<'tcx> for DerefDelegate<'_, 'tcx> {
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replacement_str = format!("*{}", replacement_str);
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}
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}
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}
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self.set.insert(cmt.hir_id);
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self.deref_suggs.insert(cmt.hir_id, replacement_str);
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}
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self.suggestion_start
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.push_str(&format!("{}{}", start_snip, replacement_str));
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self.suggestion_end = end_snip.to_string();
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}
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self.next_pos = Some(span.hi());
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}
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}
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@ -36,11 +36,6 @@ fn main() {
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// check that we don't lint if `find()` is called with
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// `Pattern` that is not a string
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let _ = "hello world".find(|c: char| c == 'o' || c == 'l').is_some();
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// Check `find().is_some()`, single-line case.
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let _ = (0..1).find(|x| **y == *x).is_some(); // one dereference less
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let _ = (0..1).find(|x| *x == 0).is_some();
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let _ = v.iter().find(|x| **x == 0).is_some();
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}
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#[rustfmt::skip]
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@ -75,44 +70,4 @@ fn is_none() {
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// check that we don't lint if `find()` is called with
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// `Pattern` that is not a string
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let _ = "hello world".find(|c: char| c == 'o' || c == 'l').is_none();
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// Check `find().is_none()`, single-line case.
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let _ = (0..1).find(|x| **y == *x).is_none(); // one dereference less
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let _ = (0..1).find(|x| *x == 0).is_none();
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let _ = v.iter().find(|x| **x == 0).is_none();
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}
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#[allow(clippy::clone_on_copy, clippy::map_clone)]
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mod issue7392 {
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struct Player {
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hand: Vec<usize>,
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}
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fn filter() {
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let p = Player {
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hand: vec![1, 2, 3, 4, 5],
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};
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let filter_hand = vec![5];
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let _ = p
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.hand
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.iter()
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.filter(|c| filter_hand.iter().find(|cc| c == cc).is_none())
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.map(|c| c.clone())
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.collect::<Vec<_>>();
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}
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struct PlayerTuple {
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hand: Vec<(usize, char)>,
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}
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fn filter_tuple() {
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let p = PlayerTuple {
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hand: vec![(1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'), (5, 'e')],
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};
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let filter_hand = vec![5];
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let _ = p
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.hand
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.iter()
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.filter(|(c, _)| filter_hand.iter().find(|cc| c == *cc).is_none())
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.map(|c| c.clone())
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.collect::<Vec<_>>();
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}
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}
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|
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@ -35,53 +35,8 @@ LL | | ).is_some();
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|
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= help: this is more succinctly expressed by calling `any()`
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error: called `is_some()` after searching an `Iterator` with `find`
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--> $DIR/search_is_some.rs:41:20
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|
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LL | let _ = (0..1).find(|x| **y == *x).is_some(); // one dereference less
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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help: use `any()` instead
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|
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LL | let _ = (0..1).any(|x| **y == *x); // one dereference less
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| ^^^^^^^^^^^^^^^^^^
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help: ...and remove deref
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|
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LL | let _ = (0..1).find(|x| **y == x).is_some(); // one dereference less
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| ^
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error: called `is_some()` after searching an `Iterator` with `find`
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--> $DIR/search_is_some.rs:42:20
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|
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LL | let _ = (0..1).find(|x| *x == 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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help: use `any()` instead
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|
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LL | let _ = (0..1).any(|x| *x == 0);
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| ^^^^^^^^^^^^^^^^
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help: ...and remove deref
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|
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LL | let _ = (0..1).find(|x| x == 0).is_some();
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| ^
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error: called `is_some()` after searching an `Iterator` with `find`
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--> $DIR/search_is_some.rs:43:22
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|
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LL | let _ = v.iter().find(|x| **x == 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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help: use `any()` instead
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|
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LL | let _ = v.iter().any(|x| **x == 0);
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| ^^^^^^^^^^^^^^^^^
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help: ...and remove deref
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|
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LL | let _ = v.iter().find(|x| *x == 0).is_some();
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| ^^
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error: called `is_none()` after searching an `Iterator` with `find`
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--> $DIR/search_is_some.rs:53:13
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--> $DIR/search_is_some.rs:48:13
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|
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LL | let _ = v.iter().find(|&x| {
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| _____________^
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@ -93,7 +48,7 @@ LL | | ).is_none();
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= help: this is more succinctly expressed by calling `any()` with negation
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error: called `is_none()` after searching an `Iterator` with `position`
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--> $DIR/search_is_some.rs:59:13
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--> $DIR/search_is_some.rs:54:13
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|
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LL | let _ = v.iter().position(|&x| {
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| _____________^
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|
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@ -105,7 +60,7 @@ LL | | ).is_none();
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= help: this is more succinctly expressed by calling `any()` with negation
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error: called `is_none()` after searching an `Iterator` with `rposition`
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--> $DIR/search_is_some.rs:65:13
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--> $DIR/search_is_some.rs:60:13
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|
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LL | let _ = v.iter().rposition(|&x| {
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| _____________^
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|
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@ -116,80 +71,5 @@ LL | | ).is_none();
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|
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= help: this is more succinctly expressed by calling `any()` with negation
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error: called `is_none()` after searching an `Iterator` with `find`
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--> $DIR/search_is_some.rs:80:13
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|
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LL | let _ = (0..1).find(|x| **y == *x).is_none(); // one dereference less
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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help: use `!_.any()` instead
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|
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LL | let _ = !(0..1).any(|x| **y == *x); // one dereference less
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: ...and remove deref
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|
|
||||
LL | let _ = (0..1).find(|x| **y == x).is_none(); // one dereference less
|
||||
| ^
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some.rs:81:13
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| *x == 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
help: use `!_.any()` instead
|
||||
|
|
||||
LL | let _ = !(0..1).any(|x| *x == 0);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
help: ...and remove deref
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| x == 0).is_none();
|
||||
| ^
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some.rs:82:13
|
||||
|
|
||||
LL | let _ = v.iter().find(|x| **x == 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
help: use `!_.any()` instead
|
||||
|
|
||||
LL | let _ = !v.iter().any(|x| **x == 0);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
help: ...and remove deref
|
||||
|
|
||||
LL | let _ = v.iter().find(|x| *x == 0).is_none();
|
||||
| ^^
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some.rs:98:25
|
||||
|
|
||||
LL | .filter(|c| filter_hand.iter().find(|cc| c == cc).is_none())
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
help: use `!_.any()` instead
|
||||
|
|
||||
LL | .filter(|c| !filter_hand.iter().any(|cc| c == cc))
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
help: ...and borrow variable
|
||||
|
|
||||
LL | .filter(|c| filter_hand.iter().find(|cc| c == &cc).is_none())
|
||||
| ^^^
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some.rs:114:30
|
||||
|
|
||||
LL | .filter(|(c, _)| filter_hand.iter().find(|cc| c == *cc).is_none())
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
help: use `!_.any()` instead
|
||||
|
|
||||
LL | .filter(|(c, _)| !filter_hand.iter().any(|cc| c == *cc))
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
help: ...and remove deref
|
||||
|
|
||||
LL | .filter(|(c, _)| filter_hand.iter().find(|cc| c == cc).is_none())
|
||||
| ^^
|
||||
|
||||
error: aborting due to 14 previous errors
|
||||
error: aborting due to 6 previous errors
|
||||
|
||||
|
|
|
|||
|
|
@ -4,9 +4,19 @@
|
|||
|
||||
fn main() {
|
||||
let v = vec![3, 2, 1, 0, -1, -2, -3];
|
||||
let y = &&42;
|
||||
|
||||
// Check `find().is_some()`, single-line case.
|
||||
let _ = v.iter().any(|x| *x < 0);
|
||||
let _ = (0..1).any(|x| **y == x); // one dereference less
|
||||
let _ = (0..1).any(|x| x == 0);
|
||||
let _ = v.iter().any(|x| *x == 0);
|
||||
let _ = (4..5).any(|x| x == 1 || x == 3 || x == 5);
|
||||
let _ = (1..3).any(|x| [1, 2, 3].contains(&x));
|
||||
let _ = (1..3).any(|x| x == 0 || [1, 2, 3].contains(&x));
|
||||
let _ = (1..3).any(|x| [1, 2, 3].contains(&x) || x == 0);
|
||||
let _ = (1..3)
|
||||
.any(|x| [1, 2, 3].contains(&x) || x == 0 || [4, 5, 6].contains(&x) || x == -1);
|
||||
|
||||
// Check `position().is_some()`, single-line case.
|
||||
let _ = v.iter().any(|&x| x < 0);
|
||||
|
|
@ -32,9 +42,18 @@ fn main() {
|
|||
|
||||
fn is_none() {
|
||||
let v = vec![3, 2, 1, 0, -1, -2, -3];
|
||||
let y = &&42;
|
||||
|
||||
// Check `find().is_none()`, single-line case.
|
||||
let _ = !v.iter().any(|x| *x < 0);
|
||||
let _ = !(0..1).any(|x| **y == x); // one dereference less
|
||||
let _ = !(0..1).any(|x| x == 0);
|
||||
let _ = !v.iter().any(|x| *x == 0);
|
||||
let _ = !(4..5).any(|x| x == 1 || x == 3 || x == 5);
|
||||
let _ = !(1..3).any(|x| [1, 2, 3].contains(&x));
|
||||
let _ = !(1..3).any(|x| x == 0 || [1, 2, 3].contains(&x));
|
||||
let _ = !(1..3).any(|x| [1, 2, 3].contains(&x) || x == 0);
|
||||
let _ = !(1..3).any(|x| [1, 2, 3].contains(&x) || x == 0 || [4, 5, 6].contains(&x) || x == -1);
|
||||
|
||||
// Check `position().is_none()`, single-line case.
|
||||
let _ = !v.iter().any(|&x| x < 0);
|
||||
|
|
@ -58,3 +77,38 @@ fn is_none() {
|
|||
let _ = !s1[2..].contains(&s2);
|
||||
let _ = !s1[2..].contains(&s2[2..]);
|
||||
}
|
||||
|
||||
#[allow(clippy::clone_on_copy, clippy::map_clone)]
|
||||
mod issue7392 {
|
||||
struct Player {
|
||||
hand: Vec<usize>,
|
||||
}
|
||||
fn filter() {
|
||||
let p = Player {
|
||||
hand: vec![1, 2, 3, 4, 5],
|
||||
};
|
||||
let filter_hand = vec![5];
|
||||
let _ = p
|
||||
.hand
|
||||
.iter()
|
||||
.filter(|c| !filter_hand.iter().any(|cc| c == &cc))
|
||||
.map(|c| c.clone())
|
||||
.collect::<Vec<_>>();
|
||||
}
|
||||
|
||||
struct PlayerTuple {
|
||||
hand: Vec<(usize, char)>,
|
||||
}
|
||||
fn filter_tuple() {
|
||||
let p = PlayerTuple {
|
||||
hand: vec![(1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'), (5, 'e')],
|
||||
};
|
||||
let filter_hand = vec![5];
|
||||
let _ = p
|
||||
.hand
|
||||
.iter()
|
||||
.filter(|(c, _)| !filter_hand.iter().any(|cc| c == cc))
|
||||
.map(|c| c.clone())
|
||||
.collect::<Vec<_>>();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,9 +4,20 @@
|
|||
|
||||
fn main() {
|
||||
let v = vec![3, 2, 1, 0, -1, -2, -3];
|
||||
let y = &&42;
|
||||
|
||||
// Check `find().is_some()`, single-line case.
|
||||
let _ = v.iter().find(|&x| *x < 0).is_some();
|
||||
let _ = (0..1).find(|x| **y == *x).is_some(); // one dereference less
|
||||
let _ = (0..1).find(|x| *x == 0).is_some();
|
||||
let _ = v.iter().find(|x| **x == 0).is_some();
|
||||
let _ = (4..5).find(|x| *x == 1 || *x == 3 || *x == 5).is_some();
|
||||
let _ = (1..3).find(|x| [1, 2, 3].contains(x)).is_some();
|
||||
let _ = (1..3).find(|x| *x == 0 || [1, 2, 3].contains(x)).is_some();
|
||||
let _ = (1..3).find(|x| [1, 2, 3].contains(x) || *x == 0).is_some();
|
||||
let _ = (1..3)
|
||||
.find(|x| [1, 2, 3].contains(x) || *x == 0 || [4, 5, 6].contains(x) || *x == -1)
|
||||
.is_some();
|
||||
|
||||
// Check `position().is_some()`, single-line case.
|
||||
let _ = v.iter().position(|&x| x < 0).is_some();
|
||||
|
|
@ -32,9 +43,20 @@ fn main() {
|
|||
|
||||
fn is_none() {
|
||||
let v = vec![3, 2, 1, 0, -1, -2, -3];
|
||||
let y = &&42;
|
||||
|
||||
// Check `find().is_none()`, single-line case.
|
||||
let _ = v.iter().find(|&x| *x < 0).is_none();
|
||||
let _ = (0..1).find(|x| **y == *x).is_none(); // one dereference less
|
||||
let _ = (0..1).find(|x| *x == 0).is_none();
|
||||
let _ = v.iter().find(|x| **x == 0).is_none();
|
||||
let _ = (4..5).find(|x| *x == 1 || *x == 3 || *x == 5).is_none();
|
||||
let _ = (1..3).find(|x| [1, 2, 3].contains(x)).is_none();
|
||||
let _ = (1..3).find(|x| *x == 0 || [1, 2, 3].contains(x)).is_none();
|
||||
let _ = (1..3).find(|x| [1, 2, 3].contains(x) || *x == 0).is_none();
|
||||
let _ = (1..3)
|
||||
.find(|x| [1, 2, 3].contains(x) || *x == 0 || [4, 5, 6].contains(x) || *x == -1)
|
||||
.is_none();
|
||||
|
||||
// Check `position().is_none()`, single-line case.
|
||||
let _ = v.iter().position(|&x| x < 0).is_none();
|
||||
|
|
@ -58,3 +80,38 @@ fn is_none() {
|
|||
let _ = s1[2..].find(&s2).is_none();
|
||||
let _ = s1[2..].find(&s2[2..]).is_none();
|
||||
}
|
||||
|
||||
#[allow(clippy::clone_on_copy, clippy::map_clone)]
|
||||
mod issue7392 {
|
||||
struct Player {
|
||||
hand: Vec<usize>,
|
||||
}
|
||||
fn filter() {
|
||||
let p = Player {
|
||||
hand: vec![1, 2, 3, 4, 5],
|
||||
};
|
||||
let filter_hand = vec![5];
|
||||
let _ = p
|
||||
.hand
|
||||
.iter()
|
||||
.filter(|c| filter_hand.iter().find(|cc| c == cc).is_none())
|
||||
.map(|c| c.clone())
|
||||
.collect::<Vec<_>>();
|
||||
}
|
||||
|
||||
struct PlayerTuple {
|
||||
hand: Vec<(usize, char)>,
|
||||
}
|
||||
fn filter_tuple() {
|
||||
let p = PlayerTuple {
|
||||
hand: vec![(1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'), (5, 'e')],
|
||||
};
|
||||
let filter_hand = vec![5];
|
||||
let _ = p
|
||||
.hand
|
||||
.iter()
|
||||
.filter(|(c, _)| filter_hand.iter().find(|cc| c == *cc).is_none())
|
||||
.map(|c| c.clone())
|
||||
.collect::<Vec<_>>();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,148 +1,261 @@
|
|||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:9:22
|
||||
--> $DIR/search_is_some_fixable.rs:10:22
|
||||
|
|
||||
LL | let _ = v.iter().find(|&x| *x < 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| *x < 0)`
|
||||
|
|
||||
= note: `-D clippy::search-is-some` implied by `-D warnings`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:11:20
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| **y == *x).is_some(); // one dereference less
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| **y == x)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:12:20
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| *x == 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| x == 0)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:13:22
|
||||
|
|
||||
LL | let _ = v.iter().find(|x| **x == 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| *x == 0)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:14:20
|
||||
|
|
||||
LL | let _ = (4..5).find(|x| *x == 1 || *x == 3 || *x == 5).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| x == 1 || x == 3 || x == 5)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:15:20
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| [1, 2, 3].contains(x)).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| [1, 2, 3].contains(&x))`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:16:20
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| *x == 0 || [1, 2, 3].contains(x)).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| x == 0 || [1, 2, 3].contains(&x))`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:17:20
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| [1, 2, 3].contains(x) || *x == 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|x| [1, 2, 3].contains(&x) || x == 0)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:19:10
|
||||
|
|
||||
LL | .find(|x| [1, 2, 3].contains(x) || *x == 0 || [4, 5, 6].contains(x) || *x == -1)
|
||||
| __________^
|
||||
LL | | .is_some();
|
||||
| |__________________^ help: use `any()` instead: `any(|x| [1, 2, 3].contains(&x) || x == 0 || [4, 5, 6].contains(&x) || x == -1)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `position`
|
||||
--> $DIR/search_is_some_fixable.rs:12:22
|
||||
--> $DIR/search_is_some_fixable.rs:23:22
|
||||
|
|
||||
LL | let _ = v.iter().position(|&x| x < 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|&x| x < 0)`
|
||||
|
||||
error: called `is_some()` after searching an `Iterator` with `rposition`
|
||||
--> $DIR/search_is_some_fixable.rs:15:22
|
||||
--> $DIR/search_is_some_fixable.rs:26:22
|
||||
|
|
||||
LL | let _ = v.iter().rposition(|&x| x < 0).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `any()` instead: `any(|&x| x < 0)`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:20:27
|
||||
--> $DIR/search_is_some_fixable.rs:31:27
|
||||
|
|
||||
LL | let _ = "hello world".find("world").is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains("world")`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:21:27
|
||||
--> $DIR/search_is_some_fixable.rs:32:27
|
||||
|
|
||||
LL | let _ = "hello world".find(&s2).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2)`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:22:27
|
||||
--> $DIR/search_is_some_fixable.rs:33:27
|
||||
|
|
||||
LL | let _ = "hello world".find(&s2[2..]).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2[2..])`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:24:16
|
||||
--> $DIR/search_is_some_fixable.rs:35:16
|
||||
|
|
||||
LL | let _ = s1.find("world").is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains("world")`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:25:16
|
||||
--> $DIR/search_is_some_fixable.rs:36:16
|
||||
|
|
||||
LL | let _ = s1.find(&s2).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2)`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:26:16
|
||||
--> $DIR/search_is_some_fixable.rs:37:16
|
||||
|
|
||||
LL | let _ = s1.find(&s2[2..]).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2[2..])`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:28:21
|
||||
--> $DIR/search_is_some_fixable.rs:39:21
|
||||
|
|
||||
LL | let _ = s1[2..].find("world").is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains("world")`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:29:21
|
||||
--> $DIR/search_is_some_fixable.rs:40:21
|
||||
|
|
||||
LL | let _ = s1[2..].find(&s2).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2)`
|
||||
|
||||
error: called `is_some()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:30:21
|
||||
--> $DIR/search_is_some_fixable.rs:41:21
|
||||
|
|
||||
LL | let _ = s1[2..].find(&s2[2..]).is_some();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `contains()` instead: `contains(&s2[2..])`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:37:13
|
||||
--> $DIR/search_is_some_fixable.rs:49:13
|
||||
|
|
||||
LL | let _ = v.iter().find(|&x| *x < 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!v.iter().any(|x| *x < 0)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:50:13
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| **y == *x).is_none(); // one dereference less
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(0..1).any(|x| **y == x)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:51:13
|
||||
|
|
||||
LL | let _ = (0..1).find(|x| *x == 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(0..1).any(|x| x == 0)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:52:13
|
||||
|
|
||||
LL | let _ = v.iter().find(|x| **x == 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!v.iter().any(|x| *x == 0)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:53:13
|
||||
|
|
||||
LL | let _ = (4..5).find(|x| *x == 1 || *x == 3 || *x == 5).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(4..5).any(|x| x == 1 || x == 3 || x == 5)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:54:13
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| [1, 2, 3].contains(x)).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(1..3).any(|x| [1, 2, 3].contains(&x))`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:55:13
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| *x == 0 || [1, 2, 3].contains(x)).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(1..3).any(|x| x == 0 || [1, 2, 3].contains(&x))`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:56:13
|
||||
|
|
||||
LL | let _ = (1..3).find(|x| [1, 2, 3].contains(x) || *x == 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!(1..3).any(|x| [1, 2, 3].contains(&x) || x == 0)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:57:13
|
||||
|
|
||||
LL | let _ = (1..3)
|
||||
| _____________^
|
||||
LL | | .find(|x| [1, 2, 3].contains(x) || *x == 0 || [4, 5, 6].contains(x) || *x == -1)
|
||||
LL | | .is_none();
|
||||
| |__________________^ help: use `!_.any()` instead: `!(1..3).any(|x| [1, 2, 3].contains(&x) || x == 0 || [4, 5, 6].contains(&x) || x == -1)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `position`
|
||||
--> $DIR/search_is_some_fixable.rs:40:13
|
||||
--> $DIR/search_is_some_fixable.rs:62:13
|
||||
|
|
||||
LL | let _ = v.iter().position(|&x| x < 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!v.iter().any(|&x| x < 0)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `rposition`
|
||||
--> $DIR/search_is_some_fixable.rs:43:13
|
||||
--> $DIR/search_is_some_fixable.rs:65:13
|
||||
|
|
||||
LL | let _ = v.iter().rposition(|&x| x < 0).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!v.iter().any(|&x| x < 0)`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:49:13
|
||||
--> $DIR/search_is_some_fixable.rs:71:13
|
||||
|
|
||||
LL | let _ = "hello world".find("world").is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!"hello world".contains("world")`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:50:13
|
||||
--> $DIR/search_is_some_fixable.rs:72:13
|
||||
|
|
||||
LL | let _ = "hello world".find(&s2).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!"hello world".contains(&s2)`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:51:13
|
||||
--> $DIR/search_is_some_fixable.rs:73:13
|
||||
|
|
||||
LL | let _ = "hello world".find(&s2[2..]).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!"hello world".contains(&s2[2..])`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:53:13
|
||||
--> $DIR/search_is_some_fixable.rs:75:13
|
||||
|
|
||||
LL | let _ = s1.find("world").is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1.contains("world")`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:54:13
|
||||
--> $DIR/search_is_some_fixable.rs:76:13
|
||||
|
|
||||
LL | let _ = s1.find(&s2).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1.contains(&s2)`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:55:13
|
||||
--> $DIR/search_is_some_fixable.rs:77:13
|
||||
|
|
||||
LL | let _ = s1.find(&s2[2..]).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1.contains(&s2[2..])`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:57:13
|
||||
--> $DIR/search_is_some_fixable.rs:79:13
|
||||
|
|
||||
LL | let _ = s1[2..].find("world").is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1[2..].contains("world")`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:58:13
|
||||
--> $DIR/search_is_some_fixable.rs:80:13
|
||||
|
|
||||
LL | let _ = s1[2..].find(&s2).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1[2..].contains(&s2)`
|
||||
|
||||
error: called `is_none()` after calling `find()` on a string
|
||||
--> $DIR/search_is_some_fixable.rs:59:13
|
||||
--> $DIR/search_is_some_fixable.rs:81:13
|
||||
|
|
||||
LL | let _ = s1[2..].find(&s2[2..]).is_none();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.contains()` instead: `!s1[2..].contains(&s2[2..])`
|
||||
|
||||
error: aborting due to 24 previous errors
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:97:25
|
||||
|
|
||||
LL | .filter(|c| filter_hand.iter().find(|cc| c == cc).is_none())
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!filter_hand.iter().any(|cc| c == &cc)`
|
||||
|
||||
error: called `is_none()` after searching an `Iterator` with `find`
|
||||
--> $DIR/search_is_some_fixable.rs:113:30
|
||||
|
|
||||
LL | .filter(|(c, _)| filter_hand.iter().find(|cc| c == *cc).is_none())
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `!_.any()` instead: `!filter_hand.iter().any(|cc| c == cc)`
|
||||
|
||||
error: aborting due to 42 previous errors
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue