1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
7 // met:
8 //
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
14 // distribution.
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
18 //
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31 #include <map>
32 #include <string>
33
34 #include <google/protobuf/compiler/objectivec/objectivec_message_field.h>
35 #include <google/protobuf/compiler/objectivec/objectivec_helpers.h>
36 #include <google/protobuf/io/printer.h>
37 #include <google/protobuf/wire_format.h>
38
39 namespace google {
40 namespace protobuf {
41 namespace compiler {
42 namespace objectivec {
43
44 namespace {
45
SetMessageVariables(const FieldDescriptor * descriptor,std::map<string,string> * variables)46 void SetMessageVariables(const FieldDescriptor* descriptor,
47 std::map<string, string>* variables) {
48 const string& message_type = ClassName(descriptor->message_type());
49 (*variables)["type"] = message_type;
50 (*variables)["containing_class"] = ClassName(descriptor->containing_type());
51 (*variables)["storage_type"] = message_type;
52 (*variables)["group_or_message"] =
53 (descriptor->type() == FieldDescriptor::TYPE_GROUP) ? "Group" : "Message";
54
55 (*variables)["dataTypeSpecific_value"] = "GPBStringifySymbol(" + message_type + ")";
56 }
57
58 } // namespace
59
MessageFieldGenerator(const FieldDescriptor * descriptor,const Options & options)60 MessageFieldGenerator::MessageFieldGenerator(const FieldDescriptor* descriptor,
61 const Options& options)
62 : ObjCObjFieldGenerator(descriptor, options) {
63 SetMessageVariables(descriptor, &variables_);
64 }
65
~MessageFieldGenerator()66 MessageFieldGenerator::~MessageFieldGenerator() {}
67
DetermineForwardDeclarations(std::set<string> * fwd_decls) const68 void MessageFieldGenerator::DetermineForwardDeclarations(
69 std::set<string>* fwd_decls) const {
70 ObjCObjFieldGenerator::DetermineForwardDeclarations(fwd_decls);
71 // Class name is already in "storage_type".
72 fwd_decls->insert("@class " + variable("storage_type"));
73 }
74
WantsHasProperty(void) const75 bool MessageFieldGenerator::WantsHasProperty(void) const {
76 if (descriptor_->containing_oneof() != NULL) {
77 // If in a oneof, it uses the oneofcase instead of a has bit.
78 return false;
79 }
80 // In both proto2 & proto3, message fields have a has* property to tell
81 // when it is a non default value.
82 return true;
83 }
84
RepeatedMessageFieldGenerator(const FieldDescriptor * descriptor,const Options & options)85 RepeatedMessageFieldGenerator::RepeatedMessageFieldGenerator(
86 const FieldDescriptor* descriptor, const Options& options)
87 : RepeatedFieldGenerator(descriptor, options) {
88 SetMessageVariables(descriptor, &variables_);
89 variables_["array_storage_type"] = "NSMutableArray";
90 variables_["array_property_type"] =
91 "NSMutableArray<" + variables_["storage_type"] + "*>";
92 }
93
~RepeatedMessageFieldGenerator()94 RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {}
95
DetermineForwardDeclarations(std::set<string> * fwd_decls) const96 void RepeatedMessageFieldGenerator::DetermineForwardDeclarations(
97 std::set<string>* fwd_decls) const {
98 RepeatedFieldGenerator::DetermineForwardDeclarations(fwd_decls);
99 // Class name is already in "storage_type".
100 fwd_decls->insert("@class " + variable("storage_type"));
101 }
102
103
104 } // namespace objectivec
105 } // namespace compiler
106 } // namespace protobuf
107 } // namespace google
108