Line data Source code
1 : // Protocol Buffers - Google's data interchange format
2 : // Copyright 2008 Google Inc. All rights reserved.
3 : // http://code.google.com/p/protobuf/
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 : // Author: kenton@google.com (Kenton Varda)
32 : // Based on original Protocol Buffers design by
33 : // Sanjay Ghemawat, Jeff Dean, and others.
34 :
35 : #include <map>
36 : #include <string>
37 :
38 : #include <google/protobuf/compiler/javanano/javanano_params.h>
39 : #include <google/protobuf/compiler/javanano/javanano_enum.h>
40 : #include <google/protobuf/compiler/javanano/javanano_helpers.h>
41 : #include <google/protobuf/io/printer.h>
42 : #include <google/protobuf/descriptor.pb.h>
43 : #include <google/protobuf/stubs/strutil.h>
44 :
45 : namespace google {
46 : namespace protobuf {
47 : namespace compiler {
48 : namespace javanano {
49 :
50 0 : EnumGenerator::EnumGenerator(const EnumDescriptor* descriptor, const Params& params)
51 0 : : params_(params), descriptor_(descriptor) {
52 0 : for (int i = 0; i < descriptor_->value_count(); i++) {
53 0 : const EnumValueDescriptor* value = descriptor_->value(i);
54 : const EnumValueDescriptor* canonical_value =
55 0 : descriptor_->FindValueByNumber(value->number());
56 :
57 0 : if (value == canonical_value) {
58 0 : canonical_values_.push_back(value);
59 : } else {
60 : Alias alias;
61 0 : alias.value = value;
62 0 : alias.canonical_value = canonical_value;
63 0 : aliases_.push_back(alias);
64 : }
65 : }
66 0 : }
67 :
68 0 : EnumGenerator::~EnumGenerator() {}
69 :
70 0 : void EnumGenerator::Generate(io::Printer* printer) {
71 : printer->Print(
72 : "\n"
73 : "// enum $classname$\n",
74 0 : "classname", descriptor_->name());
75 :
76 0 : const string classname = RenameJavaKeywords(descriptor_->name());
77 :
78 : // Start of container interface
79 : // If generating intdefs, we use the container interface as the intdef if
80 : // present. Otherwise, we just make an empty @interface parallel to the
81 : // constants.
82 0 : bool use_intdef = params_.generate_intdefs();
83 0 : bool use_shell_class = params_.java_enum_style();
84 0 : if (use_intdef) {
85 : // @IntDef annotation so tools can enforce correctness
86 : // Annotations will be discarded by the compiler
87 : printer->Print("@java.lang.annotation.Retention("
88 : "java.lang.annotation.RetentionPolicy.SOURCE)\n"
89 0 : "@android.support.annotation.IntDef({\n");
90 0 : printer->Indent();
91 0 : for (int i = 0; i < canonical_values_.size(); i++) {
92 : const string constant_name =
93 0 : RenameJavaKeywords(canonical_values_[i]->name());
94 0 : if (use_shell_class) {
95 : printer->Print("$classname$.$name$,\n",
96 : "classname", classname,
97 0 : "name", constant_name);
98 : } else {
99 0 : printer->Print("$name$,\n", "name", constant_name);
100 : }
101 : }
102 0 : printer->Outdent();
103 0 : printer->Print("})\n");
104 : }
105 0 : if (use_shell_class || use_intdef) {
106 : printer->Print(
107 : "public $at_for_intdef$interface $classname$ {\n",
108 : "classname", classname,
109 0 : "at_for_intdef", use_intdef ? "@" : "");
110 0 : if (use_shell_class) {
111 0 : printer->Indent();
112 : } else {
113 0 : printer->Print("}\n\n");
114 : }
115 : }
116 :
117 : // Canonical values
118 0 : for (int i = 0; i < canonical_values_.size(); i++) {
119 : printer->Print(
120 : "public static final int $name$ = $canonical_value$;\n",
121 0 : "name", RenameJavaKeywords(canonical_values_[i]->name()),
122 0 : "canonical_value", SimpleItoa(canonical_values_[i]->number()));
123 : }
124 :
125 : // Aliases
126 0 : for (int i = 0; i < aliases_.size(); i++) {
127 : printer->Print(
128 : "public static final int $name$ = $canonical_name$;\n",
129 0 : "name", RenameJavaKeywords(aliases_[i].value->name()),
130 0 : "canonical_name", RenameJavaKeywords(aliases_[i].canonical_value->name()));
131 : }
132 :
133 : // End of container interface
134 0 : if (use_shell_class) {
135 0 : printer->Outdent();
136 0 : printer->Print("}\n");
137 : }
138 0 : }
139 :
140 : } // namespace javanano
141 : } // namespace compiler
142 : } // namespace protobuf
143 : } // namespace google
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