Fix FP on if_then_some_else_none when there is early return

clippy_lints/src/if_then_some_else_none.rs

@@ -1,9 +1,9 @@
 use clippy_utils::diagnostics::span_lint_and_help;
 use clippy_utils::source::snippet_with_macro_callsite;
-use clippy_utils::{higher, is_else_clause, is_lang_ctor, meets_msrv, msrvs};
+use clippy_utils::{contains_return, higher, is_else_clause, is_lang_ctor, meets_msrv, msrvs};
 use if_chain::if_chain;
 use rustc_hir::LangItem::{OptionNone, OptionSome};
-use rustc_hir::{Expr, ExprKind};
+use rustc_hir::{Expr, ExprKind, Stmt, StmtKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_semver::RustcVersion;
@@ -73,6 +73,7 @@ impl LateLintPass<'_> for IfThenSomeElseNone {
         if_chain! {
             if let Some(higher::If { cond, then, r#else: Some(els) }) = higher::If::hir(expr);
             if let ExprKind::Block(then_block, _) = then.kind;
+            if !stmts_contains_early_return(then_block.stmts);
             if let Some(then_expr) = then_block.expr;
             if let ExprKind::Call(then_call, [then_arg]) = then_expr.kind;
             if let ExprKind::Path(ref then_call_qpath) = then_call.kind;
@@ -99,18 +100,26 @@ impl LateLintPass<'_> for IfThenSomeElseNone {
                     "consider using `bool::then` like: `{}.then(|| {})`",
                     cond_snip,
                     closure_body,
-                );
+                    );
                 span_lint_and_help(
                     cx,
                     IF_THEN_SOME_ELSE_NONE,
                     expr.span,
                     "this could be simplified with `bool::then`",
                     None,
                     &help,
-                );
+                    );
             }
         }
     }
 
     extract_msrv_attr!(LateContext);
 }
+
+fn stmts_contains_early_return(stmts: &[Stmt<'_>]) -> bool {
+    stmts.iter().any(|stmt| {
+        let Stmt { kind: StmtKind::Semi(e), .. } = stmt else { return false };
+
+        contains_return(e)
+    })
+}

tests/ui/if_then_some_else_none.rs

@@ -102,3 +102,14 @@ fn into_some<T>(v: T) -> Option<T> {
 fn into_none<T>() -> Option<T> {
     None
 }
+
+// Should not warn
+fn f(b: bool, v: Option<()>) -> Option<()> {
+    if b {
+        v?; // This is a potential early return, is not equivalent with `bool::then`
+
+        Some(())
+    } else {
+        None
+    }
+}