From a952e42e996fcab8f13e48d0078c0e95a4d507d9 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <joshua@reverberate.org>
Date: Sat, 1 Aug 2009 18:34:24 -0700
Subject: Fixed a bug in set_flags order in the compiler.

---
 descriptor/descriptor.c | 1269 +++++++++++++++++++++++++++++++++++++++--------
 src/upb_context.c       |    6 +-
 tools/upbc.c            |   16 +-
 3 files changed, 1080 insertions(+), 211 deletions(-)

diff --git a/descriptor/descriptor.c b/descriptor/descriptor.c
index d24ba16..b2c68c6 100644
--- a/descriptor/descriptor.c
+++ b/descriptor/descriptor.c
@@ -343,172 +343,325 @@ static UPB_MSG_ARRAY(google_protobuf_EnumValueDescriptorProto) google_protobuf_E
 };
 static google_protobuf_DescriptorProto google_protobuf_DescriptorProto_values[18] = {
 
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[34],   /* "FileDescriptorSet" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[0],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[33],   /* "FileDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[1],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0b}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = true,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[24],   /* "DescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[2],
-    .extension = 0,   /* Not set. */
     .nested_type = &google_protobuf_DescriptorProto_arrays[1],
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x13}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = true,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[31],   /* "FieldDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[4],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = &google_protobuf_EnumDescriptorProto_arrays[0],
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[26],   /* "EnumDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[5],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[28],   /* "EnumValueDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[6],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[47],   /* "ServiceDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[7],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[41],   /* "MethodDescriptorProto" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[8],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x33}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = true,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[35],   /* "FileOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[9],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = &google_protobuf_EnumDescriptorProto_arrays[1],
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[0],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x23}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[40],   /* "MessageOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[10],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[1],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x33}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = true,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[32],   /* "FieldOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[11],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = &google_protobuf_EnumDescriptorProto_arrays[2],
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[2],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x23}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[27],   /* "EnumOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[12],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[3],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x23}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[29],   /* "EnumValueOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[13],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[4],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x23}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[48],   /* "ServiceOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[14],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[5],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x23}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = true,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[42],   /* "MethodOptions" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[15],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = &google_protobuf_DescriptorProto_ExtensionRange_arrays[6],
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0b}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = true,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[68],   /* "UninterpretedOption" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[16],
-    .extension = 0,   /* Not set. */
     .nested_type = &google_protobuf_DescriptorProto_arrays[2],
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[30],   /* "ExtensionRange" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[3],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .field = true,
+    .nested_type = false,
+    .enum_type = false,
+    .extension_range = false,
+    .extension = false,
+    .options = false,
+  }},
     .name = &strings[43],   /* "NamePart" */
     .field = &google_protobuf_FieldDescriptorProto_arrays[17],
-    .extension = 0,   /* Not set. */
     .nested_type = 0,   /* Not set. */
     .enum_type = 0,   /* Not set. */
     .extension_range = 0,   /* Not set. */
+    .extension = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
 };
 static google_protobuf_FileDescriptorProto google_protobuf_FileDescriptorProto_values[1] = {
 
-  {.set_flags = {.bytes = {0x8b}},
+  {.set_flags = {.has = {
+    .name = true,
+    .package = true,
+    .dependency = false,
+    .message_type = true,
+    .enum_type = false,
+    .service = false,
+    .extension = false,
+    .options = true,
+  }},
     .name = &strings[74],   /* "descriptor/descriptor.proto" */
     .package = &strings[85],   /* "google.protobuf" */
     .dependency = 0,   /* Not set. */
@@ -521,69 +674,114 @@ static google_protobuf_FileDescriptorProto google_protobuf_FileDescriptorProto_v
 };
 static google_protobuf_FileDescriptorSet google_protobuf_FileDescriptorSet_values[1] = {
 
-  {.set_flags = {.bytes = {0x01}},
+  {.set_flags = {.has = {
+    .file = true,
+  }},
     .file = &google_protobuf_FileDescriptorProto_arrays[0],
   },
 };
 static google_protobuf_DescriptorProto_ExtensionRange google_protobuf_DescriptorProto_ExtensionRange_values[7] = {
 
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .start = true,
+    .end = true,
+  }},
     .start = 1000,
     .end = 536870912,
   },
 };
 static google_protobuf_FileOptions google_protobuf_FileOptions_values[1] = {
 
-  {.set_flags = {.bytes = {0x0b}},
+  {.set_flags = {.has = {
+    .java_package = true,
+    .java_outer_classname = true,
+    .optimize_for = true,
+    .java_multiple_files = false,
+    .uninterpreted_option = false,
+  }},
     .java_package = &strings[69],   /* "com.google.protobuf" */
     .java_outer_classname = &strings[25],   /* "DescriptorProtos" */
-    .java_multiple_files = 0,   /* Not set. */
     .optimize_for = 1,
+    .java_multiple_files = 0,   /* Not set. */
     .uninterpreted_option = 0,   /* Not set. */
   },
 };
 static google_protobuf_EnumDescriptorProto google_protobuf_EnumDescriptorProto_values[4] = {
 
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .value = true,
+    .options = false,
+  }},
     .name = &strings[67],   /* "Type" */
     .value = &google_protobuf_EnumValueDescriptorProto_arrays[0],
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .value = true,
+    .options = false,
+  }},
     .name = &strings[39],   /* "Label" */
     .value = &google_protobuf_EnumValueDescriptorProto_arrays[1],
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .value = true,
+    .options = false,
+  }},
     .name = &strings[44],   /* "OptimizeMode" */
     .value = &google_protobuf_EnumValueDescriptorProto_arrays[2],
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .value = true,
+    .options = false,
+  }},
     .name = &strings[23],   /* "CType" */
     .value = &google_protobuf_EnumValueDescriptorProto_arrays[3],
     .options = 0,   /* Not set. */
@@ -591,760 +789,1427 @@ static google_protobuf_EnumDescriptorProto google_protobuf_EnumDescriptorProto_v
 };
 static google_protobuf_FieldDescriptorProto google_protobuf_FieldDescriptorProto_values[63] = {
 
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[84],   /* "file" */
+    .extendee = 0,   /* Not set. */
     .number = 1,
     .label = 3,
     .type = 11,
     .type_name = &strings[11],   /* ".google.protobuf.FileDescriptorProto" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[96],   /* "name" */
+    .extendee = 0,   /* Not set. */
     .number = 1,
     .label = 1,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[104],   /* "package" */
+    .extendee = 0,   /* Not set. */
     .number = 2,
     .label = 1,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[72],   /* "dependency" */
+    .extendee = 0,   /* Not set. */
     .number = 3,
     .label = 3,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[94],   /* "message_type" */
+    .extendee = 0,   /* Not set. */
     .number = 4,
     .label = 3,
     .type = 11,
     .type_name = &strings[0],   /* ".google.protobuf.DescriptorProto" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[77],   /* "enum_type" */
+    .extendee = 0,   /* Not set. */
     .number = 5,
     .label = 3,
     .type = 11,
     .type_name = &strings[2],   /* ".google.protobuf.EnumDescriptorProto" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[107],   /* "service" */
+    .extendee = 0,   /* Not set. */
     .number = 6,
     .label = 3,
     .type = 11,
     .type_name = &strings[17],   /* ".google.protobuf.ServiceDescriptorProto" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
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   },
-  {.set_flags = {.bytes = {0x5f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = true,
+    .options = false,
+  }},
     .name = &strings[101],   /* "optimize_for" */
+    .extendee = 0,   /* Not set. */
     .number = 9,
     .label = 1,
     .type = 14,
     .type_name = &strings[13],   /* ".google.protobuf.FileOptions.OptimizeMode" */
-    .extendee = 0,   /* Not set. */
     .default_value = &strings[45],   /* "SPEED" */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x4f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = true,
+    .options = false,
+  }},
     .name = &strings[89],   /* "java_multiple_files" */
+    .extendee = 0,   /* Not set. */
     .number = 10,
     .label = 1,
     .type = 8,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = &strings[82],   /* "false" */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x4f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = true,
+    .options = false,
+  }},
     .name = &strings[93],   /* "message_set_wire_format" */
+    .extendee = 0,   /* Not set. */
     .number = 1,
     .label = 1,
     .type = 8,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = &strings[82],   /* "false" */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[70],   /* "ctype" */
+    .extendee = 0,   /* Not set. */
     .number = 1,
     .label = 1,
     .type = 14,
     .type_name = &strings[10],   /* ".google.protobuf.FieldOptions.CType" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[105],   /* "packed" */
+    .extendee = 0,   /* Not set. */
     .number = 2,
     .label = 1,
     .type = 8,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x4f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = true,
+    .options = false,
+  }},
     .name = &strings[73],   /* "deprecated" */
+    .extendee = 0,   /* Not set. */
     .number = 3,
     .label = 1,
     .type = 8,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = &strings[82],   /* "false" */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[78],   /* "experimental_map_key" */
+    .extendee = 0,   /* Not set. */
     .number = 9,
     .label = 1,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[112],   /* "uninterpreted_option" */
+    .extendee = 0,   /* Not set. */
     .number = 999,
     .label = 3,
     .type = 11,
     .type_name = &strings[19],   /* ".google.protobuf.UninterpretedOption" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x1f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = true,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[96],   /* "name" */
+    .extendee = 0,   /* Not set. */
     .number = 2,
     .label = 3,
     .type = 11,
     .type_name = &strings[20],   /* ".google.protobuf.UninterpretedOption.NamePart" */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[86],   /* "identifier_value" */
+    .extendee = 0,   /* Not set. */
     .number = 3,
     .label = 1,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[106],   /* "positive_int_value" */
+    .extendee = 0,   /* Not set. */
     .number = 4,
     .label = 1,
     .type = 4,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[98],   /* "negative_int_value" */
+    .extendee = 0,   /* Not set. */
     .number = 5,
     .label = 1,
     .type = 3,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[75],   /* "double_value" */
+    .extendee = 0,   /* Not set. */
     .number = 6,
     .label = 1,
     .type = 1,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[109],   /* "string_value" */
+    .extendee = 0,   /* Not set. */
     .number = 7,
     .label = 1,
     .type = 12,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[97],   /* "name_part" */
+    .extendee = 0,   /* Not set. */
     .number = 1,
     .label = 2,
     .type = 9,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x0f}},
+  {.set_flags = {.has = {
+    .name = true,
+    .extendee = false,
+    .number = true,
+    .label = true,
+    .type = true,
+    .type_name = false,
+    .default_value = false,
+    .options = false,
+  }},
     .name = &strings[88],   /* "is_extension" */
+    .extendee = 0,   /* Not set. */
     .number = 2,
     .label = 2,
     .type = 8,
     .type_name = 0,   /* Not set. */
-    .extendee = 0,   /* Not set. */
     .default_value = 0,   /* Not set. */
     .options = 0,   /* Not set. */
   },
 };
 static google_protobuf_EnumValueDescriptorProto google_protobuf_EnumValueDescriptorProto_values[25] = {
 
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[51],   /* "TYPE_DOUBLE" */
     .number = 1,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[55],   /* "TYPE_FLOAT" */
     .number = 2,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[58],   /* "TYPE_INT64" */
     .number = 3,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[66],   /* "TYPE_UINT64" */
     .number = 4,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[57],   /* "TYPE_INT32" */
     .number = 5,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[54],   /* "TYPE_FIXED64" */
     .number = 6,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[53],   /* "TYPE_FIXED32" */
     .number = 7,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[49],   /* "TYPE_BOOL" */
     .number = 8,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[64],   /* "TYPE_STRING" */
     .number = 9,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[56],   /* "TYPE_GROUP" */
     .number = 10,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[59],   /* "TYPE_MESSAGE" */
     .number = 11,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[50],   /* "TYPE_BYTES" */
     .number = 12,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[65],   /* "TYPE_UINT32" */
     .number = 13,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[52],   /* "TYPE_ENUM" */
     .number = 14,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[60],   /* "TYPE_SFIXED32" */
     .number = 15,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[61],   /* "TYPE_SFIXED64" */
     .number = 16,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[62],   /* "TYPE_SINT32" */
     .number = 17,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[63],   /* "TYPE_SINT64" */
     .number = 18,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[36],   /* "LABEL_OPTIONAL" */
     .number = 1,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[38],   /* "LABEL_REQUIRED" */
     .number = 2,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[37],   /* "LABEL_REPEATED" */
     .number = 3,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[45],   /* "SPEED" */
     .number = 1,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[21],   /* "CODE_SIZE" */
     .number = 2,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[22],   /* "CORD" */
     .number = 1,
     .options = 0,   /* Not set. */
   },
-  {.set_flags = {.bytes = {0x03}},
+  {.set_flags = {.has = {
+    .name = true,
+    .number = true,
+    .options = false,
+  }},
     .name = &strings[46],   /* "STRING_PIECE" */
     .number = 2,
     .options = 0,   /* Not set. */
diff --git a/src/upb_context.c b/src/upb_context.c
index 00b62cc..46d8f05 100644
--- a/src/upb_context.c
+++ b/src/upb_context.c
@@ -195,14 +195,12 @@ static bool insert_message(struct upb_strtable *t,
   upb_strtable_insert(t, &e.e);
 
   /* Add nested messages and enums. */
-  //if(d->set_flags.has.nested_type)  (re-enable when protoc sets)
-  if(d->nested_type)
+  if(d->set_flags.has.nested_type)
     for(unsigned int i = 0; i < d->nested_type->len; i++)
       if(!insert_message(t, d->nested_type->elements[i], &fqname, sort))
         return false;
 
-  //if(d->set_flags.has.enum_type)
-  if(d->enum_type)
+  if(d->set_flags.has.enum_type)
     for(unsigned int i = 0; i < d->enum_type->len; i++)
       if(!insert_enum(t, d->enum_type->elements[i], &fqname))
         return false;
diff --git a/tools/upbc.c b/tools/upbc.c
index 3234a34..8eec85c 100644
--- a/tools/upbc.c
+++ b/tools/upbc.c
@@ -467,12 +467,18 @@ static void write_message_c(void *data, struct upb_msg *m,
         struct upb_msg *m = e->field->ref.msg;
         void *msgdata = val.msg;
         /* Print set flags. */
-        fputs("  {.set_flags = {.bytes = {", stream);
-        for(unsigned int j = 0; j < m->set_flags_bytes; j++) {
-          fprintf(stream, "0x%02hhx", *(uint8_t*)(val.msg + j));
-          if(j < m->set_flags_bytes - 1) fputs(", ", stream);
+        fputs("  {.set_flags = {.has = {\n", stream);
+        for(unsigned int j = 0; j < m->num_fields; j++) {
+          struct upb_msg_field *f = &m->fields[j];
+          google_protobuf_FieldDescriptorProto *fd = m->field_descriptors[j];
+          fprintf(stream, "    ." UPB_STRFMT " = ", UPB_STRARG(*fd->name));
+          if(upb_msg_isset(msgdata, f))
+            fprintf(stream, "true");
+          else
+            fprintf(stream, "false");
+          fputs(",\n", stream);
         }
-        fputs("}},\n", stream);
+        fputs("  }},\n", stream);
         /* Print msg data. */
         for(unsigned int j = 0; j < m->num_fields; j++) {
           struct upb_msg_field *f = &m->fields[j];
-- 
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