From ee173d512721df521b5a29bc939770e098931e21 Mon Sep 17 00:00:00 2001
From: g-w1 <58830309+g-w1@users.noreply.github.com>
Date: Thu, 15 Jul 2021 03:55:22 -0400
Subject: [PATCH] parser: require block in suspend expression

---
 lib/std/zig/parse.zig       |  6 +-----
 lib/std/zig/parser_test.zig | 15 ---------------
 lib/std/zig/render.zig      | 13 ++-----------
 3 files changed, 3 insertions(+), 31 deletions(-)

diff --git a/lib/std/zig/parse.zig b/lib/std/zig/parse.zig
index f7e782851f..24c34a9536 100644
--- a/lib/std/zig/parse.zig
+++ b/lib/std/zig/parse.zig
@@ -885,11 +885,7 @@ const Parser = struct {
             },
             .keyword_suspend => {
                 const token = p.nextToken();
-                // TODO remove this special case when 0.9.0 is released.
-                const block_expr: Node.Index = if (p.eatToken(.semicolon) != null)
-                    0
-                else
-                    try p.expectBlockExprStatement();
+                const block_expr = try p.expectBlockExprStatement();
                 return p.addNode(.{
                     .tag = .@"suspend",
                     .main_token = token,
diff --git a/lib/std/zig/parser_test.zig b/lib/std/zig/parser_test.zig
index 26ef344f2c..f67b0c6179 100644
--- a/lib/std/zig/parser_test.zig
+++ b/lib/std/zig/parser_test.zig
@@ -92,21 +92,6 @@ test "zig fmt: rewrite callconv(.Inline) to the inline keyword" {
     );
 }
 
-// TODO Remove this after zig 0.9.0 is released.
-test "zig fmt: rewrite suspend without block expression" {
-    try testTransform(
-        \\fn foo() void {
-        \\    suspend;
-        \\}
-        \\
-    ,
-        \\fn foo() void {
-        \\    suspend {}
-        \\}
-        \\
-    );
-}
-
 // TODO Remove this after zig 0.9.0 is released.
 test "zig fmt: rewrite @byteOffsetOf to @offsetOf" {
     try testTransform(
diff --git a/lib/std/zig/render.zig b/lib/std/zig/render.zig
index 36fb7f5e14..df91da8a03 100644
--- a/lib/std/zig/render.zig
+++ b/lib/std/zig/render.zig
@@ -275,17 +275,8 @@ fn renderExpression(gpa: *Allocator, ais: *Ais, tree: ast.Tree, node: ast.Node.I
         .@"suspend" => {
             const suspend_token = main_tokens[node];
             const body = datas[node].lhs;
-            if (body != 0) {
-                try renderToken(ais, tree, suspend_token, .space);
-                return renderExpression(gpa, ais, tree, body, space);
-            } else {
-                // TODO remove this special case when 0.9.0 is released.
-                assert(space == .semicolon);
-                try renderToken(ais, tree, suspend_token, .space);
-                try ais.writer().writeAll("{}");
-                try ais.insertNewline();
-                return;
-            }
+            try renderToken(ais, tree, suspend_token, .space);
+            return renderExpression(gpa, ais, tree, body, space);
         },
 
         .@"catch" => {