From bfbe26734d4167977fff0d675ff55c68d75dd3be Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Sun, 20 May 2018 14:50:27 -0400
Subject: [PATCH] zig fmt: add pointer deref syntax

---
 std/zig/parse.zig       | 11 +++++++++++
 std/zig/parser_test.zig |  7 +++++++
 2 files changed, 18 insertions(+)

diff --git a/std/zig/parse.zig b/std/zig/parse.zig
index f4e819e544..865ece6f5d 100644
--- a/std/zig/parse.zig
+++ b/std/zig/parse.zig
@@ -2195,6 +2195,17 @@ pub fn parse(allocator: &mem.Allocator, source: []const u8) !ast.Tree {
                         continue;
                     },
                     Token.Id.Period => {
+                        if (eatToken(&tok_it, &tree, Token.Id.Asterisk)) |asterisk_token| {
+                            const node = try arena.construct(ast.Node.SuffixOp{
+                                .base = ast.Node{ .id = ast.Node.Id.SuffixOp },
+                                .lhs = lhs,
+                                .op = ast.Node.SuffixOp.Op.Deref,
+                                .rtoken = asterisk_token,
+                            });
+                            opt_ctx.store(&node.base);
+                            stack.append(State{ .SuffixOpExpressionEnd = opt_ctx.toRequired() }) catch unreachable;
+                            continue;
+                        }
                         const node = try arena.construct(ast.Node.InfixOp{
                             .base = ast.Node{ .id = ast.Node.Id.InfixOp },
                             .lhs = lhs,
diff --git a/std/zig/parser_test.zig b/std/zig/parser_test.zig
index 094c4d51f7..63d56167e8 100644
--- a/std/zig/parser_test.zig
+++ b/std/zig/parser_test.zig
@@ -1,3 +1,10 @@
+test "zig fmt: ptr deref operator" {
+    try testCanonical(
+        \\const a = b.*;
+        \\
+    );
+}
+
 test "zig fmt: comment after if before another if" {
     try testCanonical(
         \\test "aoeu" {