1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Author: kenton@google.com (Kenton Varda)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
#include <google/protobuf/compiler/cpp/cpp_generator.h>
#include <vector>
#include <memory>
#ifndef _SHARED_PTR_H
#include <google/protobuf/stubs/shared_ptr.h>
#endif
#include <utility>
#include <google/protobuf/compiler/cpp/cpp_file.h>
#include <google/protobuf/compiler/cpp/cpp_helpers.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/io/zero_copy_stream.h>
#include <google/protobuf/descriptor.pb.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace cpp {
CppGenerator::CppGenerator() {}
CppGenerator::~CppGenerator() {}
bool CppGenerator::Generate(const FileDescriptor* file,
const string& parameter,
GeneratorContext* generator_context,
string* error) const {
std::vector<std::pair<string, string> > options;
ParseGeneratorParameter(parameter, &options);
// -----------------------------------------------------------------
// parse generator options
// TODO(kenton): If we ever have more options, we may want to create a
// class that encapsulates them which we can pass down to all the
// generator classes. Currently we pass dllexport_decl down to all of
// them via the constructors, but we don't want to have to add another
// constructor parameter for every option.
// If the dllexport_decl option is passed to the compiler, we need to write
// it in front of every symbol that should be exported if this .proto is
// compiled into a Windows DLL. E.g., if the user invokes the protocol
// compiler as:
// protoc --cpp_out=dllexport_decl=FOO_EXPORT:outdir foo.proto
// then we'll define classes like this:
// class FOO_EXPORT Foo {
// ...
// }
// FOO_EXPORT is a macro which should expand to __declspec(dllexport) or
// __declspec(dllimport) depending on what is being compiled.
//
Options file_options;
for (int i = 0; i < options.size(); i++) {
if (options[i].first == "dllexport_decl") {
file_options.dllexport_decl = options[i].second;
} else if (options[i].first == "safe_boundary_check") {
file_options.safe_boundary_check = true;
} else if (options[i].first == "annotate_headers") {
file_options.annotate_headers = true;
} else if (options[i].first == "annotation_pragma_name") {
file_options.annotation_pragma_name = options[i].second;
} else if (options[i].first == "annotation_guard_name") {
file_options.annotation_guard_name = options[i].second;
} else if (options[i].first == "lite") {
file_options.enforce_lite = true;
} else {
*error = "Unknown generator option: " + options[i].first;
return false;
}
}
// -----------------------------------------------------------------
string basename = StripProto(file->name());
FileGenerator file_generator(file, file_options);
// Generate header(s).
if (file_options.proto_h) {
google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(basename + ".proto.h"));
GeneratedCodeInfo annotations;
io::AnnotationProtoCollector<GeneratedCodeInfo> annotation_collector(
&annotations);
string info_path = basename + ".proto.h.meta";
io::Printer printer(output.get(), '$', file_options.annotate_headers
? &annotation_collector
: NULL);
file_generator.GenerateProtoHeader(
&printer, file_options.annotate_headers ? info_path : "");
if (file_options.annotate_headers) {
google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> info_output(
generator_context->Open(info_path));
annotations.SerializeToZeroCopyStream(info_output.get());
}
}
basename.append(".pb");
{
google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(basename + ".h"));
GeneratedCodeInfo annotations;
io::AnnotationProtoCollector<GeneratedCodeInfo> annotation_collector(
&annotations);
string info_path = basename + ".h.meta";
io::Printer printer(output.get(), '$', file_options.annotate_headers
? &annotation_collector
: NULL);
file_generator.GeneratePBHeader(
&printer, file_options.annotate_headers ? info_path : "");
if (file_options.annotate_headers) {
google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> info_output(
generator_context->Open(info_path));
annotations.SerializeToZeroCopyStream(info_output.get());
}
}
// Generate cc file.
{
google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(basename + ".cc"));
io::Printer printer(output.get(), '$');
file_generator.GenerateSource(&printer);
}
return true;
}
} // namespace cpp
} // namespace compiler
} // namespace protobuf
} // namespace google
|
