22         _ => requires_comma_to_be_match_arm(expr),  in requires_semi_to_be_stmt()
29         Expr::If(_)  in requires_comma_to_be_match_arm()
30         | Expr::Match(_)  in requires_comma_to_be_match_arm()
31         | Expr::Block(_) | Expr::Unsafe(_) // both under ExprKind::Block in rustc  in requires_comma_to_be_match_arm()
32         | Expr::While(_)  in requires_comma_to_be_match_arm()
33         | Expr::Loop(_)  in requires_comma_to_be_match_arm()
34         | Expr::ForLoop(_)  in requires_comma_to_be_match_arm()
35         | Expr::TryBlock(_)  in requires_comma_to_be_match_arm()
36         | Expr::Const(_) => false,  in requires_comma_to_be_match_arm()
38         Expr::Array(_)  in requires_comma_to_be_match_arm()
39         | Expr::Assign(_)  in requires_comma_to_be_match_arm()
40         | Expr::Async(_)  in requires_comma_to_be_match_arm()
41         | Expr::Await(_)  in requires_comma_to_be_match_arm()
42         | Expr::Binary(_)  in requires_comma_to_be_match_arm()
43         | Expr::Break(_)  in requires_comma_to_be_match_arm()
44         | Expr::Call(_)  in requires_comma_to_be_match_arm()
45         | Expr::Cast(_)  in requires_comma_to_be_match_arm()
46         | Expr::Closure(_)  in requires_comma_to_be_match_arm()
47         | Expr::Continue(_)  in requires_comma_to_be_match_arm()
48         | Expr::Field(_)  in requires_comma_to_be_match_arm()
49         | Expr::Group(_)  in requires_comma_to_be_match_arm()
50         | Expr::Index(_)  in requires_comma_to_be_match_arm()
51         | Expr::Infer(_)  in requires_comma_to_be_match_arm()
52         | Expr::Let(_)  in requires_comma_to_be_match_arm()
53         | Expr::Lit(_)  in requires_comma_to_be_match_arm()
54         | Expr::Macro(_)  in requires_comma_to_be_match_arm()
55         | Expr::MethodCall(_)  in requires_comma_to_be_match_arm()
56         | Expr::Paren(_)  in requires_comma_to_be_match_arm()
57         | Expr::Path(_)  in requires_comma_to_be_match_arm()
58         | Expr::Range(_)  in requires_comma_to_be_match_arm()
59         | Expr::RawAddr(_)  in requires_comma_to_be_match_arm()
60         | Expr::Reference(_)  in requires_comma_to_be_match_arm()
61         | Expr::Repeat(_)  in requires_comma_to_be_match_arm()
62         | Expr::Return(_)  in requires_comma_to_be_match_arm()
63         | Expr::Struct(_)  in requires_comma_to_be_match_arm()
64         | Expr::Try(_)  in requires_comma_to_be_match_arm()
65         | Expr::Tuple(_)  in requires_comma_to_be_match_arm()
66         | Expr::Unary(_)  in requires_comma_to_be_match_arm()
67         | Expr::Yield(_)  in requires_comma_to_be_match_arm()
68         | Expr::Verbatim(_) => true,  in requires_comma_to_be_match_arm()
78                 ReturnType::Type(_, ret) => ty = ret,  in trailing_unparameterized_path()
95             Type::Array(_)  in trailing_unparameterized_path()
96             | Type::Group(_)  in trailing_unparameterized_path()
97             | Type::Infer(_)  in trailing_unparameterized_path()
98             | Type::Macro(_)  in trailing_unparameterized_path()
99             | Type::Never(_)  in trailing_unparameterized_path()
100             | Type::Paren(_)  in trailing_unparameterized_path()
101             | Type::Slice(_)  in trailing_unparameterized_path()
102             | Type::Tuple(_)  in trailing_unparameterized_path()
103             | Type::Verbatim(_) => return false,  in trailing_unparameterized_path()
110             PathArguments::AngleBracketed(_) => ControlFlow::Break(false),  in trailing_unparameterized_path()
113                 ReturnType::Type(_, ret) => ControlFlow::Continue(ret),  in trailing_unparameterized_path()
123             TypeParamBound::Lifetime(_)  in trailing_unparameterized_path()
124             | TypeParamBound::PreciseCapture(_)  in trailing_unparameterized_path()
125             | TypeParamBound::Verbatim(_) => ControlFlow::Break(false),  in trailing_unparameterized_path()
154             Expr::Array(_)  in expr_leading_label()
155             | Expr::Async(_)  in expr_leading_label()
156             | Expr::Break(_)  in expr_leading_label()
157             | Expr::Closure(_)  in expr_leading_label()
158             | Expr::Const(_)  in expr_leading_label()
159             | Expr::Continue(_)  in expr_leading_label()
160             | Expr::Group(_)  in expr_leading_label()
161             | Expr::If(_)  in expr_leading_label()
162             | Expr::Infer(_)  in expr_leading_label()
163             | Expr::Let(_)  in expr_leading_label()
164             | Expr::Lit(_)  in expr_leading_label()
165             | Expr::Macro(_)  in expr_leading_label()
166             | Expr::Match(_)  in expr_leading_label()
167             | Expr::Paren(_)  in expr_leading_label()
168             | Expr::Path(_)  in expr_leading_label()
169             | Expr::RawAddr(_)  in expr_leading_label()
170             | Expr::Reference(_)  in expr_leading_label()
171             | Expr::Repeat(_)  in expr_leading_label()
172             | Expr::Return(_)  in expr_leading_label()
173             | Expr::Struct(_)  in expr_leading_label()
174             | Expr::TryBlock(_)  in expr_leading_label()
175             | Expr::Tuple(_)  in expr_leading_label()
176             | Expr::Unary(_)  in expr_leading_label()
177             | Expr::Unsafe(_)  in expr_leading_label()
178             | Expr::Verbatim(_)  in expr_leading_label()
179             | Expr::Yield(_) => return false,  in expr_leading_label()
189             Expr::Async(_)  in expr_trailing_brace()
190             | Expr::Block(_)  in expr_trailing_brace()
191             | Expr::Const(_)  in expr_trailing_brace()
192             | Expr::ForLoop(_)  in expr_trailing_brace()
193             | Expr::If(_)  in expr_trailing_brace()
194             | Expr::Loop(_)  in expr_trailing_brace()
195             | Expr::Match(_)  in expr_trailing_brace()
196             | Expr::Struct(_)  in expr_trailing_brace()
197             | Expr::TryBlock(_)  in expr_trailing_brace()
198             | Expr::Unsafe(_)  in expr_trailing_brace()
199             | Expr::While(_) => return true,  in expr_trailing_brace()
228             Expr::Array(_)  in expr_trailing_brace()
229             | Expr::Await(_)  in expr_trailing_brace()
230             | Expr::Call(_)  in expr_trailing_brace()
231             | Expr::Continue(_)  in expr_trailing_brace()
232             | Expr::Field(_)  in expr_trailing_brace()
233             | Expr::Group(_)  in expr_trailing_brace()
234             | Expr::Index(_)  in expr_trailing_brace()
235             | Expr::Infer(_)  in expr_trailing_brace()
236             | Expr::Lit(_)  in expr_trailing_brace()
237             | Expr::MethodCall(_)  in expr_trailing_brace()
238             | Expr::Paren(_)  in expr_trailing_brace()
239             | Expr::Path(_)  in expr_trailing_brace()
240             | Expr::Repeat(_)  in expr_trailing_brace()
241             | Expr::Try(_)  in expr_trailing_brace()
242             | Expr::Tuple(_) => return false,  in expr_trailing_brace()
251                     ReturnType::Type(_, ret) => ty = ret,  in expr_trailing_brace()
270                 Type::Array(_)  in expr_trailing_brace()
271                 | Type::Group(_)  in expr_trailing_brace()
272                 | Type::Infer(_)  in expr_trailing_brace()
273                 | Type::Never(_)  in expr_trailing_brace()
274                 | Type::Paren(_)  in expr_trailing_brace()
275                 | Type::Slice(_)  in expr_trailing_brace()
276                 | Type::Tuple(_) => return false,  in expr_trailing_brace()
283             PathArguments::None | PathArguments::AngleBracketed(_) => None,  in expr_trailing_brace()
286                 ReturnType::Type(_, ret) => Some(ret),  in expr_trailing_brace()
299             TypeParamBound::Lifetime(_) | TypeParamBound::PreciseCapture(_) => {  in expr_trailing_brace()