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 #include <google/protobuf/stubs/strutil.h>
39
40 namespace google {
41 namespace protobuf {
42 namespace compiler {
43 namespace objectivec {
44
45 namespace {
46
SetMessageVariables(const FieldDescriptor * descriptor,map<string,string> * variables)47 void SetMessageVariables(const FieldDescriptor* descriptor,
48 map<string, string>* variables) {
49 const string& message_type = ClassName(descriptor->message_type());
50 (*variables)["type"] = message_type;
51 (*variables)["containing_class"] = ClassName(descriptor->containing_type());
52 (*variables)["storage_type"] = message_type;
53 (*variables)["group_or_message"] =
54 (descriptor->type() == FieldDescriptor::TYPE_GROUP) ? "Group" : "Message";
55
56 (*variables)["dataTypeSpecific_value"] = "GPBStringifySymbol(" + message_type + ")";
57 }
58
59 } // namespace
60
MessageFieldGenerator(const FieldDescriptor * descriptor,const Options & options)61 MessageFieldGenerator::MessageFieldGenerator(const FieldDescriptor* descriptor,
62 const Options& options)
63 : ObjCObjFieldGenerator(descriptor, options) {
64 SetMessageVariables(descriptor, &variables_);
65 }
66
~MessageFieldGenerator()67 MessageFieldGenerator::~MessageFieldGenerator() {}
68
DetermineForwardDeclarations(set<string> * fwd_decls) const69 void MessageFieldGenerator::DetermineForwardDeclarations(
70 set<string>* fwd_decls) const {
71 ObjCObjFieldGenerator::DetermineForwardDeclarations(fwd_decls);
72 // Class name is already in "storage_type".
73 fwd_decls->insert("@class " + variable("storage_type"));
74 }
75
WantsHasProperty(void) const76 bool MessageFieldGenerator::WantsHasProperty(void) const {
77 if (descriptor_->containing_oneof() != NULL) {
78 // If in a oneof, it uses the oneofcase instead of a has bit.
79 return false;
80 }
81 // In both proto2 & proto3, message fields have a has* property to tell
82 // when it is a non default value.
83 return true;
84 }
85
RepeatedMessageFieldGenerator(const FieldDescriptor * descriptor,const Options & options)86 RepeatedMessageFieldGenerator::RepeatedMessageFieldGenerator(
87 const FieldDescriptor* descriptor, const Options& options)
88 : RepeatedFieldGenerator(descriptor, options) {
89 SetMessageVariables(descriptor, &variables_);
90 variables_["array_storage_type"] = "NSMutableArray";
91 variables_["array_property_type"] =
92 "NSMutableArray<" + variables_["storage_type"] + "*>";
93 }
94
~RepeatedMessageFieldGenerator()95 RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {}
96
DetermineForwardDeclarations(set<string> * fwd_decls) const97 void RepeatedMessageFieldGenerator::DetermineForwardDeclarations(
98 set<string>* fwd_decls) const {
99 RepeatedFieldGenerator::DetermineForwardDeclarations(fwd_decls);
100 // Class name is already in "storage_type".
101 fwd_decls->insert("@class " + variable("storage_type"));
102 }
103
104
105 } // namespace objectivec
106 } // namespace compiler
107 } // namespace protobuf
108 } // namespace google
109