135             Expr::Block(e) => return e.label.is_some(),  in expr_leading_label()
136             Expr::ForLoop(e) => return e.label.is_some(),  in expr_leading_label()
137             Expr::Loop(e) => return e.label.is_some(),  in expr_leading_label()
138             Expr::While(e) => return e.label.is_some(),  in expr_leading_label()
140             Expr::Assign(e) => expr = &e.left,  in expr_leading_label()
141             Expr::Await(e) => expr = &e.base,  in expr_leading_label()
142             Expr::Binary(e) => expr = &e.left,  in expr_leading_label()
143             Expr::Call(e) => expr = &e.func,  in expr_leading_label()
144             Expr::Cast(e) => expr = &e.expr,  in expr_leading_label()
145             Expr::Field(e) => expr = &e.base,  in expr_leading_label()
146             Expr::Index(e) => expr = &e.expr,  in expr_leading_label()
147             Expr::MethodCall(e) => expr = &e.receiver,  in expr_leading_label()
148             Expr::Range(e) => match &e.start {  in expr_leading_label()
152             Expr::Try(e) => expr = &e.expr,  in expr_leading_label()
201             Expr::Assign(e) => expr = &e.right,  in expr_trailing_brace()
202             Expr::Binary(e) => expr = &e.right,  in expr_trailing_brace()
203             Expr::Break(e) => match &e.expr {  in expr_trailing_brace()
204                 Some(e) => expr = e,  in expr_trailing_brace()
207             Expr::Cast(e) => return type_trailing_brace(&e.ty),  in expr_trailing_brace()
208             Expr::Closure(e) => expr = &e.body,  in expr_trailing_brace()
209             Expr::Let(e) => expr = &e.expr,  in expr_trailing_brace()
210             Expr::Macro(e) => return e.mac.delimiter.is_brace(),  in expr_trailing_brace()
211             Expr::Range(e) => match &e.end {  in expr_trailing_brace()
215             Expr::RawAddr(e) => expr = &e.expr,  in expr_trailing_brace()
216             Expr::Reference(e) => expr = &e.expr,  in expr_trailing_brace()
217             Expr::Return(e) => match &e.expr {  in expr_trailing_brace()
218                 Some(e) => expr = e,  in expr_trailing_brace()
221             Expr::Unary(e) => expr = &e.expr,  in expr_trailing_brace()
222             Expr::Verbatim(e) => return tokens_trailing_brace(e),  in expr_trailing_brace()
223             Expr::Yield(e) => match &e.expr {  in expr_trailing_brace()
224                 Some(e) => expr = e,  in expr_trailing_brace()