From c24ef3f3b8283e85d20802e6d13d8e629918edef Mon Sep 17 00:00:00 2001
From: Emil Lerch <emil@lerch.org>
Date: Thu, 13 May 2021 07:56:43 -0700
Subject: [PATCH] allow unknown non-struct fields

---
 src/json.zig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/json.zig b/src/json.zig
index ed26c13..48b88f5 100644
--- a/src/json.zig
+++ b/src/json.zig
@@ -1450,6 +1450,8 @@ pub const ParseOptions = struct {
         Error,
         UseLast,
     } = .Error,
+
+    allow_unknown_fields: bool = false,
 };
 
 fn parseInternal(comptime T: type, token: Token, tokens: *TokenStream, options: ParseOptions) !T {
@@ -1586,7 +1588,7 @@ fn parseInternal(comptime T: type, token: Token, tokens: *TokenStream, options:
                                 break;
                             }
                         }
-                        if (!found) return error.UnknownField;
+                        if (!found and !options.allow_unknown_fields) return error.UnknownField;
                     },
                     else => return error.UnexpectedToken,
                 }