[Clippy] Swap `filter_map_bool_then` to use diagnostic item instead of path
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 20991ce..e795b7f 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -501,6 +501,7 @@
black_box,
block,
bool,
+ bool_then,
borrowck_graphviz_format,
borrowck_graphviz_postflow,
box_new,
diff --git a/library/core/src/bool.rs b/library/core/src/bool.rs
index 03cdff9..58a870d 100644
--- a/library/core/src/bool.rs
+++ b/library/core/src/bool.rs
@@ -55,6 +55,7 @@ pub fn then_some<T>(self, t: T) -> Option<T> {
/// assert_eq!(a, 1);
/// ```
#[stable(feature = "lazy_bool_to_option", since = "1.50.0")]
+ #[cfg_attr(not(test), rustc_diagnostic_item = "bool_then")]
#[inline]
pub fn then<T, F: FnOnce() -> T>(self, f: F) -> Option<T> {
if self { Some(f()) } else { None }
diff --git a/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs b/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
index 4fbf661..77a62fb 100644
--- a/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/filter_map_bool_then.rs
@@ -1,9 +1,8 @@
use super::FILTER_MAP_BOOL_THEN;
use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::paths::BOOL_THEN;
use clippy_utils::source::SpanRangeExt;
use clippy_utils::ty::is_copy;
-use clippy_utils::{is_from_proc_macro, is_trait_method, match_def_path, peel_blocks};
+use clippy_utils::{is_from_proc_macro, is_trait_method, peel_blocks};
use rustc_errors::Applicability;
use rustc_hir::{Expr, ExprKind};
use rustc_lint::{LateContext, LintContext};
@@ -35,7 +34,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, arg: &
&& let ExprKind::Closure(then_closure) = then_arg.kind
&& let then_body = peel_blocks(cx.tcx.hir().body(then_closure.body).value)
&& let Some(def_id) = cx.typeck_results().type_dependent_def_id(value.hir_id)
- && match_def_path(cx, def_id, &BOOL_THEN)
+ && cx.tcx.is_diagnostic_item(sym::bool_then, def_id)
&& !is_from_proc_macro(cx, expr)
// Count the number of derefs needed to get to the bool because we need those in the suggestion
&& let needed_derefs = cx.typeck_results().expr_adjustments(recv)
diff --git a/src/tools/clippy/clippy_utils/src/paths.rs b/src/tools/clippy/clippy_utils/src/paths.rs
index 4a93939..cb0330d 100644
--- a/src/tools/clippy/clippy_utils/src/paths.rs
+++ b/src/tools/clippy/clippy_utils/src/paths.rs
@@ -74,4 +74,3 @@
pub const TOKIO_IO_OPEN_OPTIONS_NEW: [&str; 5] = ["tokio", "fs", "open_options", "OpenOptions", "new"];
pub const INSTANT_NOW: [&str; 4] = ["std", "time", "Instant", "now"];
pub const WAKER: [&str; 4] = ["core", "task", "wake", "Waker"];
-pub const BOOL_THEN: [&str; 4] = ["core", "bool", "<impl bool>", "then"];