/usr/include/google/protobuf/compiler/code_generator.h is in libprotoc-dev 3.0.0-9.1ubuntu1.
This file is owned by root:root, with mode 0o644.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | // 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.
//
// Defines the abstract interface implemented by each of the language-specific
// code generators.
#ifndef GOOGLE_PROTOBUF_COMPILER_CODE_GENERATOR_H__
#define GOOGLE_PROTOBUF_COMPILER_CODE_GENERATOR_H__
#include <google/protobuf/stubs/common.h>
#include <string>
#include <vector>
#include <utility>
namespace google {
namespace protobuf {
namespace io { class ZeroCopyOutputStream; }
class FileDescriptor;
namespace compiler {
// Defined in this file.
class CodeGenerator;
class GeneratorContext;
// The abstract interface to a class which generates code implementing a
// particular proto file in a particular language. A number of these may
// be registered with CommandLineInterface to support various languages.
class LIBPROTOC_EXPORT CodeGenerator {
public:
inline CodeGenerator() {}
virtual ~CodeGenerator();
// Generates code for the given proto file, generating one or more files in
// the given output directory.
//
// A parameter to be passed to the generator can be specified on the
// command line. This is intended to be used by Java and similar languages
// to specify which specific class from the proto file is to be generated,
// though it could have other uses as well. It is empty if no parameter was
// given.
//
// Returns true if successful. Otherwise, sets *error to a description of
// the problem (e.g. "invalid parameter") and returns false.
virtual bool Generate(const FileDescriptor* file,
const string& parameter,
GeneratorContext* generator_context,
string* error) const = 0;
// Generates code for all given proto files, generating one or more files in
// the given output directory.
//
// This method should be called instead of |Generate()| when
// |HasGenerateAll()| returns |true|. It is used to emulate legacy semantics
// when more than one `.proto` file is specified on one compiler invocation.
//
// WARNING: Please do not use unless legacy semantics force the code generator
// to produce a single output file for all input files, or otherwise require
// an examination of all input files first. The canonical code generator
// design produces one output file per input .proto file, and we do not wish
// to encourage alternate designs.
//
// A parameter is given as passed on the command line, as in |Generate()|
// above.
//
// Returns true if successful. Otherwise, sets *error to a description of
// the problem (e.g. "invalid parameter") and returns false.
virtual bool GenerateAll(const vector<const FileDescriptor*>& files,
const string& parameter,
GeneratorContext* generator_context,
string* error) const {
*error = "Unimplemented GenerateAll() method.";
return false;
}
// Returns true if the code generator expects to receive all FileDescriptors
// at once (via |GenerateAll()|), rather than one at a time (via
// |Generate()|). This is required to implement legacy semantics.
virtual bool HasGenerateAll() const { return false; }
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(CodeGenerator);
};
// CodeGenerators generate one or more files in a given directory. This
// abstract interface represents the directory to which the CodeGenerator is
// to write and other information about the context in which the Generator
// runs.
class LIBPROTOC_EXPORT GeneratorContext {
public:
inline GeneratorContext() {}
virtual ~GeneratorContext();
// Opens the given file, truncating it if it exists, and returns a
// ZeroCopyOutputStream that writes to the file. The caller takes ownership
// of the returned object. This method never fails (a dummy stream will be
// returned instead).
//
// The filename given should be relative to the root of the source tree.
// E.g. the C++ generator, when generating code for "foo/bar.proto", will
// generate the files "foo/bar.pb.h" and "foo/bar.pb.cc"; note that
// "foo/" is included in these filenames. The filename is not allowed to
// contain "." or ".." components.
virtual io::ZeroCopyOutputStream* Open(const string& filename) = 0;
// Similar to Open() but the output will be appended to the file if exists
virtual io::ZeroCopyOutputStream* OpenForAppend(const string& filename);
// Creates a ZeroCopyOutputStream which will insert code into the given file
// at the given insertion point. See plugin.proto (plugin.pb.h) for more
// information on insertion points. The default implementation
// assert-fails -- it exists only for backwards-compatibility.
//
// WARNING: This feature is currently EXPERIMENTAL and is subject to change.
virtual io::ZeroCopyOutputStream* OpenForInsert(
const string& filename, const string& insertion_point);
// Returns a vector of FileDescriptors for all the files being compiled
// in this run. Useful for languages, such as Go, that treat files
// differently when compiled as a set rather than individually.
virtual void ListParsedFiles(vector<const FileDescriptor*>* output);
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(GeneratorContext);
};
// The type GeneratorContext was once called OutputDirectory. This typedef
// provides backward compatibility.
typedef GeneratorContext OutputDirectory;
// Several code generators treat the parameter argument as holding a
// list of options separated by commas. This helper function parses
// a set of comma-delimited name/value pairs: e.g.,
// "foo=bar,baz,qux=corge"
// parses to the pairs:
// ("foo", "bar"), ("baz", ""), ("qux", "corge")
extern void ParseGeneratorParameter(const string&,
vector<pair<string, string> >*);
} // namespace compiler
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_COMPILER_CODE_GENERATOR_H__
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