Extend SIM105 to match also 'Ellipsis only' bodies in exception handlers (#3925)

crates/ruff/resources/test/fixtures/flake8_simplify/SIM105.py

@@ -59,3 +59,15 @@ def bar():
         return foo()
     except ValueError:
         pass
+
+def with_ellipsis():
+    try:
+        foo()
+    except ValueError:
+        ...
+
+def with_ellipsis_and_return():
+    try:
+        return foo()
+    except ValueError:
+        ...

crates/ruff/src/rules/flake8_simplify/rules/suppressible_exception.rs

@@ -1,4 +1,6 @@
-use rustpython_parser::ast::{Excepthandler, ExcepthandlerKind, Located, Location, Stmt, StmtKind};
+use rustpython_parser::ast::{
+    Constant, Excepthandler, ExcepthandlerKind, ExprKind, Located, Location, Stmt, StmtKind,
+};
 
 use ruff_diagnostics::{AlwaysAutofixableViolation, Diagnostic, Edit, Fix};
 use ruff_macros::{derive_message_formats, violation};
@@ -60,7 +62,17 @@ pub fn suppressible_exception(
     let handler = &handlers[0];
     let ExcepthandlerKind::ExceptHandler { body, .. } = &handler.node;
     if body.len() == 1 {
-        if matches!(body[0].node, StmtKind::Pass) {
+        let node = &body[0].node;
+        if matches!(node, StmtKind::Pass)
+            || (matches!(
+            node,
+            StmtKind::Expr {
+                value,
+                    ..
+                }
+            if matches!(**value, Located { node: ExprKind::Constant { value: Constant::Ellipsis, .. }, ..})
+            ))
+        {
             let handler_names: Vec<String> = helpers::extract_handled_exceptions(handlers)
                 .into_iter()
                 .filter_map(compose_call_path)

crates/ruff/src/rules/flake8_simplify/snapshots/ruff__rules__flake8_simplify__tests__SIM105_SIM105.py.snap

@@ -142,4 +142,39 @@ expression: diagnostics
           row: 22
           column: 8
   parent: ~
+- kind:
+    name: SuppressibleException
+    body: "Use `contextlib.suppress(ValueError)` instead of `try`-`except`-`pass`"
+    suggestion: "Replace with `contextlib.suppress(ValueError)`"
+    fixable: true
+  location:
+    row: 64
+    column: 4
+  end_location:
+    row: 67
+    column: 11
+  fix:
+    edits:
+      - content: "import contextlib\n"
+        location:
+          row: 1
+          column: 0
+        end_location:
+          row: 1
+          column: 0
+      - content: with contextlib.suppress(ValueError)
+        location:
+          row: 64
+          column: 4
+        end_location:
+          row: 64
+          column: 7
+      - content: ""
+        location:
+          row: 66
+          column: 0
+        end_location:
+          row: 67
+          column: 11
+  parent: ~