fix: don't force a newline after an empty where clause

[rust.git] / src / expr.rs

diff --git a/src/expr.rs b/src/expr.rs
index 8545b0f6f29c1ab9ac7b8df217772ccc419d55de..1ba879ccc1d315d1180bb1e8af612bf05574f36c 100644 (file)
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -124,6 +124,9 @@ pub(crate) fn format_expr(
         | ast::ExprKind::Loop(..)
         | ast::ExprKind::While(..) => to_control_flow(expr, expr_type)
             .and_then(|control_flow| control_flow.rewrite(context, shape)),
+        ast::ExprKind::ConstBlock(ref anon_const) => {
+            Some(format!("const {}", anon_const.rewrite(context, shape)?))
+        }
         ast::ExprKind::Block(ref block, opt_label) => {
             match expr_type {
                 ExprType::Statement => {
@@ -322,7 +325,11 @@ fn needs_space_after_range(rhs: &ast::Expr) -> bool {
         }
         // We do not format these expressions yet, but they should still
         // satisfy our width restrictions.
-        ast::ExprKind::LlvmInlineAsm(..) => Some(context.snippet(expr.span).to_owned()),
+        // Style Guide RFC for InlineAsm variant pending
+        // https://github.com/rust-dev-tools/fmt-rfcs/issues/152
+        ast::ExprKind::LlvmInlineAsm(..) | ast::ExprKind::InlineAsm(..) => {
+            Some(context.snippet(expr.span).to_owned())
+        }
         ast::ExprKind::TryBlock(ref block) => {
             if let rw @ Some(_) =
                 rewrite_single_line_block(context, "try ", block, Some(&expr.attrs), None, shape)
@@ -1988,14 +1995,16 @@ pub(crate) fn prefer_next_line(
 
 fn rewrite_expr_addrof(
     context: &RewriteContext<'_>,
-    _borrow_kind: ast::BorrowKind,
+    borrow_kind: ast::BorrowKind,
     mutability: ast::Mutability,
     expr: &ast::Expr,
     shape: Shape,
 ) -> Option<String> {
-    let operator_str = match mutability {
-        ast::Mutability::Not => "&",
-        ast::Mutability::Mut => "&mut ",
+    let operator_str = match (mutability, borrow_kind) {
+        (ast::Mutability::Not, ast::BorrowKind::Ref) => "&",
+        (ast::Mutability::Not, ast::BorrowKind::Raw) => "&raw const ",
+        (ast::Mutability::Mut, ast::BorrowKind::Ref) => "&mut ",
+        (ast::Mutability::Mut, ast::BorrowKind::Raw) => "&raw mut ",
     };
     rewrite_unary_prefix(context, operator_str, expr, shape)
 }