1 files changed, 30 insertions, 9 deletions

diff --git a/src/proto/error_response.zig b/src/proto/error_response.zig
index 2aafe8d..dc75053 100644
--- a/src/proto/error_response.zig
+++ b/src/proto/error_response.zig
@@ -28,12 +28,18 @@ routine: ?[]const u8 = null,
 unknown_fields: HMByteString,
 
 pub fn read(allocator: std.mem.Allocator, b: []const u8) !ErrorResponse {
-    var res: ErrorResponse = undefined;
-    res.unknown_fields = HMByteString.init(allocator);
-    res.buf = try allocator.dupe(u8, b);
-    errdefer allocator.free(res.buf.?);
+    var res = ErrorResponse{
+        .severity = "",
+        .code = "",
+        .message = "",
+        .unknown_fields = HMByteString.init(allocator),
+        .buf = try allocator.dupe(u8, b),
+    };
+    errdefer res.deinit(allocator);
     var it = std.mem.splitScalar(u8, res.buf.?, 0);
-    var setSev = false; var setCode = false; var setMsg = false;
+    var setSev = false;
+    var setCode = false;
+    var setMsg = false;
     while (it.next()) |next| {
         if (next.len < 1) break;
         switch (next[0]) {
@@ -97,7 +103,7 @@ pub fn read(allocator: std.mem.Allocator, b: []const u8) !ErrorResponse {
             },
             else => {
                 try res.unknown_fields.put(next[0], next[1..]);
-            }
+            },
         }
     }
     if (!(setSev and setCode and setMsg)) return ProtocolError.MissingField;
@@ -112,11 +118,10 @@ pub fn write(self: ErrorResponse, allocator: std.mem.Allocator, stream_writer: a
     try writer.writeIntBig(u32, 0); // Length placeholder.
 
     try write_field_nt('S', self, "severity", writer);
-    if (self.severity_unlocalized) |severity_unlocalized| {
-        try write_nt('V', severity_unlocalized, writer);
-    }
+    if (self.severity_unlocalized) |severity_unlocalized| try write_nt('V', severity_unlocalized, writer);
     try write_field_nt('C', self, "code", writer);
     try write_field_nt('M', self, "message", writer);
+    if (self.detail) |detail| try write_nt('D', detail, writer);
     // TODO rest of the fields
 
     // replace the length and write it to the actual stream
@@ -137,6 +142,20 @@ pub fn deinit(self: *ErrorResponse, allocator: std.mem.Allocator) void {
     if (self.buf != null) allocator.free(self.buf.?);
 }
 
+pub fn format(self: ErrorResponse, comptime fmt: []const u8, options: std.fmt.FormatOptions, writer: anytype) !void {
+    _ = options;
+    _ = fmt;
+    try writer.writeAll("ErrorResponse severity [");
+    try writer.writeAll(self.severity);
+    try writer.writeAll("] ");
+    try writer.writeAll("code [");
+    try writer.writeAll(self.code);
+    try writer.writeAll("] ");
+    try writer.writeAll("message [");
+    try writer.writeAll(self.message);
+    try writer.writeAll("]");
+}
+
 test "round trip" {
     const allocator = std.testing.allocator;
     var sm = ErrorResponse{
@@ -144,6 +163,7 @@ test "round trip" {
         .severity_unlocalized = "foo_unlocal",
         .code = "bar",
         .message = "baz",
+        .detail = "bang, and that's the end",
         .unknown_fields = HMByteString.init(allocator),
     };
     defer sm.deinit(allocator);
@@ -167,4 +187,5 @@ test "round trip" {
     try std.testing.expectEqualStrings("foo_unlocal", sm2.severity_unlocalized.?);
     try std.testing.expectEqualStrings("bar", sm2.code);
     try std.testing.expectEqualStrings("baz", sm2.message);
+    try std.testing.expectEqualStrings("bang, and that's the end", sm2.detail.?);
 }