// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

// Author: kenton@google.com (Kenton Varda)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.
//
// This file tests that various identifiers work as field and type names even
// though the same identifiers are used internally by the C++ code generator.

// LINT: LEGACY_NAMES

syntax = "proto2";

// Some generic_services option(s) added automatically.
// See:  http://go/proto2-generic-services-default
option cc_generic_services = true;  // auto-added

// We don't put this in a package within proto2 because we need to make sure
// that the generated code doesn't depend on being in the proto2 namespace.
package proto2_unittest;

// Test that fields can have names like "input" and "i" which are also used
// internally by the code generator for local variables.
message TestConflictingSymbolNames {
  message BuildDescriptors {}
  message TypeTraits {}

  optional int32 input = 1;
  optional int32 output = 2;
  optional string length = 3;
  repeated int32 i = 4;
  repeated string new_element = 5 [ctype = STRING_PIECE];
  optional int32 total_size = 6;
  optional int32 tag = 7;

  enum TestEnum {
    FOO = 0;
  }
  message Data1 {
    repeated int32 data = 1;
  }
  message Data2 {
    repeated TestEnum data = 1;
  }
  message Data3 {
    repeated string data = 1;
  }
  message Data4 {
    repeated Data4 data = 1;
  }
  message Data5 {
    repeated string data = 1 [ctype = STRING_PIECE];
  }
  message Data6 {
    repeated string data = 1 [ctype = CORD];
  }

  optional int32 source = 8;
  optional int32 value = 9;
  optional int32 file = 10;
  optional int32 from = 11;
  optional int32 handle_uninterpreted = 12;
  repeated int32 index = 13;
  optional int32 controller = 14;
  optional int32 already_here = 15;

  // Integral types
  optional uint32 uint8 = 47;
  optional uint32 uint8_t = 48;
  optional uint32 uint16 = 49;
  optional uint32 uint16_t = 50;
  optional uint32 uint32 = 16;
  optional uint32 uint32_t = 41;
  optional uint64 uint64 = 17;
  optional uint32 uint64_t = 42;
  optional uint32 int8 = 51;
  optional uint32 int8_t = 52;
  optional uint32 int16 = 53;
  optional uint32 int16_t = 54;
  optional int32 int32 = 20;
  optional int32 int32_t = 43;
  optional int64 int64 = 21;
  optional int64 int64_t = 44;
  optional int64 size_t = 45;
  optional int64 ssize_t = 55;
  optional int64 intptr_t = 46;
  optional int64 uintptr_t = 56;

  optional string string = 18;
  optional int32 memset = 19;

  // Internal identifier
  optional uint32 cached_size = 22;
  optional uint32 extensions = 23;
  optional uint32 bit = 24;
  optional uint32 bits = 25;
  optional uint32 offsets = 26;
  optional uint32 reflection = 27;

  message Cord {}
  optional string some_cord = 28 [ctype = CORD];

  message StringPiece {}
  optional string some_string_piece = 29 [ctype = STRING_PIECE];

  // Some keywords.
  optional uint32 int = 30;
  optional uint32 friend = 31;
  optional uint32 class = 37;
  optional uint32 typedecl = 39;
  optional uint32 auto = 40;

  // Methods generated in the parent type
  message BadKnownNamesFields {
    optional int32 unknown_fields = 1;
    optional int32 mutable_unknown_fields = 2;
    optional int32 descriptor = 3;
    optional int32 default_instance = 4;
    optional int32 swap = 5;
  }
  message BadKnownNamesFieldsNoStandardDescriptor {
    option no_standard_descriptor_accessor = true;

    optional int32 descriptor = 3;
  }
  message BadKnownNamesTypes {
    message GetDescriptor {}
    message GetReflection {}
    message Swap {}
    message UnsafeArenaSwap {}
    message New {}
    message CopyFrom {}
    message MergeFrom {}
    message GetMetadata {}
    message Clear {}
    message IsInitialized {}
  }
  message BadKnownNamesValues {                   // NO_PROTO3
    extensions 1 to 100;                          // NO_PROTO3
    extend BadKnownNamesValues {                  // NO_PROTO3
      optional int32 unknown_fields = 1;          // NO_PROTO3
      optional int32 mutable_unknown_fields = 2;  // NO_PROTO3
      optional int32 descriptor = 3;              // NO_PROTO3
      optional int32 default_instance = 4;        // NO_PROTO3
      optional int32 swap = 5;                    // NO_PROTO3
    }  // NO_PROTO3
  }  // NO_PROTO3

  // The generator used to #define a macro called "DO" inside the .cc file.
  message DO {}
  optional DO do = 32;

  // Some template parameter names for extensions.
  optional int32 field_type = 33;
  optional bool is_packed = 34;

  // test conflicting release_$name$. "length" and "do" field in this message
  // must remain string or message fields to make the test valid.
  optional string release_length = 35;
  // A more extreme case, the field name "do" here is a keyword, which will be
  // escaped to "do_" already. Test there is no conflict even with escaped field
  // names.
  optional DO release_do = 36;

  // For clashing local variables in Serialize and ByteSize calculation.
  optional string target = 38;

  // clang-format off
  extensions 1000 to max [verification = UNVERIFIED];  // NO_PROTO3
  // clang-format on
}

// Special names as above, but at file scope.
message GetDescriptor {}
message GetReflection {}
message Swap {}
message UnsafeArenaSwap {}
message New {}
message CopyFrom {}
message MergeFrom {}
message GetMetadata {}
message Clear {}
message IsInitialized {}

extend TestConflictingSymbolNames.BadKnownNamesValues {  // NO_PROTO3
  optional int32 unknown_fields = 11;                    // NO_PROTO3
  optional int32 mutable_unknown_fields = 12;            // NO_PROTO3
  optional int32 descriptor = 13;                        // NO_PROTO3
  optional int32 default_instance = 14;                  // NO_PROTO3
  optional int32 swap = 15;                              // NO_PROTO3
}  // NO_PROTO3

message TestConflictingSymbolNamesExtension {                      // NO_PROTO3
  extend TestConflictingSymbolNames {                              // NO_PROTO3
    repeated int32 repeated_int32_ext = 20423638 [packed = true];  // NO_PROTO3
  }  // NO_PROTO3
}  // NO_PROTO3

message TestConflictingEnumNames {  // NO_PROTO3
  enum while {                      // NO_PROTO3
    default = 0;                    // NO_PROTO3
    and = 1;                        // NO_PROTO3
    class = 2;                      // NO_PROTO3
    int = 3;                        // NO_PROTO3
    typedef = 4;                    // NO_PROTO3
    XOR = 5;                        // NO_PROTO3
  }  // NO_PROTO3

  optional while conflicting_enum = 1;  // NO_PROTO3
}  // NO_PROTO3

enum bool {      // NO_PROTO3
  default = 0;   // NO_PROTO3
  NOT_EQ = 1;    // NO_PROTO3
  volatile = 2;  // NO_PROTO3
  return = 3;    // NO_PROTO3
}  // NO_PROTO3

message DummyMessage {}

message NULL {
  optional int32 int = 1;
}

extend TestConflictingSymbolNames {  // NO_PROTO3
  optional int32 void = 314253;      // NO_PROTO3
}  // NO_PROTO3

// Message names that could conflict.
message Shutdown {}
message TableStruct {}

service TestConflictingMethodNames {
  rpc Closure(DummyMessage) returns (DummyMessage);
}
