1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc. All rights reserved.
3// https://developers.google.com/protocol-buffers/
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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
38namespace google {
39namespace protobuf {
40namespace compiler {
41namespace objectivec {
42
43namespace {
44
45void SetMessageVariables(const FieldDescriptor* descriptor,
46 std::map<std::string, std::string>* variables) {
47 const std::string& message_type = ClassName(descriptor: descriptor->message_type());
48 const std::string& containing_class =
49 ClassName(descriptor: descriptor->containing_type());
50 (*variables)["type"] = message_type;
51 (*variables)["containing_class"] = containing_class;
52 (*variables)["storage_type"] = message_type;
53 (*variables)["group_or_message"] =
54 (descriptor->type() == FieldDescriptor::TYPE_GROUP) ? "Group" : "Message";
55 (*variables)["dataTypeSpecific_value"] = ObjCClass(class_name: message_type);
56}
57
58} // namespace
59
60MessageFieldGenerator::MessageFieldGenerator(const FieldDescriptor* descriptor)
61 : ObjCObjFieldGenerator(descriptor) {
62 SetMessageVariables(descriptor, variables: &variables_);
63}
64
65MessageFieldGenerator::~MessageFieldGenerator() {}
66
67void MessageFieldGenerator::DetermineForwardDeclarations(
68 std::set<std::string>* fwd_decls,
69 bool include_external_types) const {
70 ObjCObjFieldGenerator::DetermineForwardDeclarations(
71 fwd_decls, include_external_types);
72 // Within a file there is no requirement on the order of the messages, so
73 // local references need a forward declaration. External files (not WKTs),
74 // need one when requested.
75 if ((include_external_types &&
76 !IsProtobufLibraryBundledProtoFile(file: descriptor_->message_type()->file())) ||
77 descriptor_->file() == descriptor_->message_type()->file()) {
78 // Class name is already in "storage_type".
79 fwd_decls->insert(x: "@class " + variable(key: "storage_type"));
80 }
81}
82
83void MessageFieldGenerator::DetermineObjectiveCClassDefinitions(
84 std::set<std::string>* fwd_decls) const {
85 fwd_decls->insert(x: ObjCClassDeclaration(class_name: variable(key: "storage_type")));
86}
87
88RepeatedMessageFieldGenerator::RepeatedMessageFieldGenerator(
89 const FieldDescriptor* descriptor)
90 : RepeatedFieldGenerator(descriptor) {
91 SetMessageVariables(descriptor, variables: &variables_);
92 variables_["array_storage_type"] = "NSMutableArray";
93 variables_["array_property_type"] =
94 "NSMutableArray<" + variables_["storage_type"] + "*>";
95}
96
97RepeatedMessageFieldGenerator::~RepeatedMessageFieldGenerator() {}
98
99void RepeatedMessageFieldGenerator::DetermineForwardDeclarations(
100 std::set<std::string>* fwd_decls,
101 bool include_external_types) const {
102 RepeatedFieldGenerator::DetermineForwardDeclarations(
103 fwd_decls, include_external_types);
104 // Within a file there is no requirement on the order of the messages, so
105 // local references need a forward declaration. External files (not WKTs),
106 // need one when requested.
107 if ((include_external_types &&
108 !IsProtobufLibraryBundledProtoFile(file: descriptor_->message_type()->file())) ||
109 descriptor_->file() == descriptor_->message_type()->file()) {
110 // Class name is already in "storage_type".
111 fwd_decls->insert(x: "@class " + variable(key: "storage_type"));
112 }
113}
114
115void RepeatedMessageFieldGenerator::DetermineObjectiveCClassDefinitions(
116 std::set<std::string>* fwd_decls) const {
117 fwd_decls->insert(x: ObjCClassDeclaration(class_name: variable(key: "storage_type")));
118}
119
120} // namespace objectivec
121} // namespace compiler
122} // namespace protobuf
123} // namespace google
124