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Return a struct and add applicability

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This commit is contained in:
ThibsG 2021-09-07 12:31:14 +02:00
parent d0dd797709
commit 97783a8cb9
1 changed files with 19 additions and 6 deletions
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25
clippy_lints/src/methods/search_is_some.rs
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@ -41,6 +41,7 @@ pub(super) fn check<'tcx>(
if search_snippet.lines().count() <= 1 {
// suggest `any(|x| ..)` instead of `any(|&x| ..)` for `find(|&x| ..).is_some()`
// suggest `any(|..| *..)` instead of `any(|..| **..)` for `find(|..| **..).is_some()`
let mut applicability = Applicability::MachineApplicable;
let any_search_snippet = if_chain! {
if search_method == "find";
if let hir::ExprKind::Closure(_, _, body_id, ..) = search_arg.kind;
@ -52,8 +53,12 @@ pub(super) fn check<'tcx>(
} else if let PatKind::Binding(..) = strip_pat_refs(closure_arg.pat).kind {
// `find()` provides a reference to the item, but `any` does not,
// so we should fix item usages for suggestion
get_closure_suggestion(cx, search_arg, closure_body)
.or_else(|| Some(search_snippet.to_string()))
if let Some(closure_sugg) = get_closure_suggestion(cx, search_arg, closure_body) {
applicability = closure_sugg.applicability;
Some(closure_sugg.suggestion)
} else {
Some(search_snippet.to_string())
}
} else {
None
}
@ -73,7 +78,7 @@ pub(super) fn check<'tcx>(
"any({})",
any_search_snippet.as_ref().map_or(&*search_snippet, String::as_str)
),
Applicability::MachineApplicable,
applicability,
);
} else {
let iter = snippet(cx, search_recv.span, "..");
@ -88,7 +93,7 @@ pub(super) fn check<'tcx>(
iter,
any_search_snippet.as_ref().map_or(&*search_snippet, String::as_str)
),
Applicability::MachineApplicable,
applicability,
);
}
} else {
@ -153,6 +158,11 @@ pub(super) fn check<'tcx>(
}
}
struct ClosureSugg {
applicability: Applicability,
suggestion: String,
}
// Build suggestion gradually by handling closure arg specific usages,
// such as explicit deref and borrowing cases.
// Returns `None` if no such use cases have been triggered in closure body
@ -160,7 +170,7 @@ fn get_closure_suggestion<'tcx>(
cx: &LateContext<'_>,
search_arg: &'tcx hir::Expr<'_>,
closure_body: &hir::Body<'_>,
) -> Option<String> {
) -> Option<ClosureSugg> {
let mut visitor = DerefDelegate {
cx,
closure_span: search_arg.span,
@ -178,7 +188,10 @@ fn get_closure_suggestion<'tcx>(
if visitor.suggestion_start.is_empty() {
None
} else {
Some(visitor.finish())
Some(ClosureSugg {
applicability: visitor.applicability,
suggestion: visitor.finish(),
})
}
}