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Diffstat (limited to 'third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_generator.cc')
| -rw-r--r-- | third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_generator.cc | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_generator.cc b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_generator.cc new file mode 100644 index 0000000000..3640746798 --- /dev/null +++ b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_generator.cc @@ -0,0 +1,166 @@ +// 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. + +#include <iostream> +#include <google/protobuf/compiler/objectivec/objectivec_generator.h> +#include <google/protobuf/compiler/objectivec/objectivec_file.h> +#include <google/protobuf/compiler/objectivec/objectivec_helpers.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/io/zero_copy_stream.h> +#include <google/protobuf/stubs/strutil.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace objectivec { + +ObjectiveCGenerator::ObjectiveCGenerator() {} + +ObjectiveCGenerator::~ObjectiveCGenerator() {} + +bool ObjectiveCGenerator::HasGenerateAll() const { + return true; +} + +bool ObjectiveCGenerator::Generate(const FileDescriptor* file, + const string& parameter, + GeneratorContext* context, + string* error) const { + *error = "Unimplemented Generate() method. Call GenerateAll() instead."; + return false; +} + +bool ObjectiveCGenerator::GenerateAll(const vector<const FileDescriptor*>& files, + const string& parameter, + GeneratorContext* context, + string* error) const { + // ----------------------------------------------------------------- + // Parse generator options. These options are passed to the compiler using the + // --objc_opt flag. The options are passed as a comma separated list of + // options along with their values. If the option appears multiple times, only + // the last value will be considered. + // + // e.g. protoc ... --objc_opt=expected_prefixes=file.txt,generate_for_named_framework=MyFramework + + Options generation_options; + + vector<pair<string, string> > options; + ParseGeneratorParameter(parameter, &options); + for (int i = 0; i < options.size(); i++) { + if (options[i].first == "expected_prefixes_path") { + // Path to find a file containing the expected prefixes + // (objc_class_prefix "PREFIX") for proto packages (package NAME). The + // generator will then issue warnings/errors if in the proto files being + // generated the option is not listed/wrong/etc in the file. + // + // The format of the file is: + // - An entry is a line of "package=prefix". + // - Comments start with "#". + // - A comment can go on a line after a expected package/prefix pair. + // (i.e. - "package=prefix # comment") + // + // There is no validation that the prefixes are good prefixes, it is + // assumed that they are when you create the file. + generation_options.expected_prefixes_path = options[i].second; + } else if (options[i].first == "generate_for_named_framework") { + // The name of the framework that protos are being generated for. This + // will cause the #import statements to be framework based using this + // name (i.e. - "#import <NAME/proto.pbobjc.h>). + // + // NOTE: If this option is used with + // named_framework_to_proto_path_mappings_path, then this is effectively + // the "default" framework name used for everything that wasn't mapped by + // the mapping file. + generation_options.generate_for_named_framework = options[i].second; + } else if (options[i].first == "named_framework_to_proto_path_mappings_path") { + // Path to find a file containing the list of framework names and proto + // files. The generator uses this to decide if a proto file + // referenced should use a framework style import vs. a user level import + // (#import <FRAMEWORK/file.pbobjc.h> vs #import "dir/file.pbobjc.h"). + // + // The format of the file is: + // - An entry is a line of "frameworkName: file.proto, dir/file2.proto". + // - Comments start with "#". + // - A comment can go on a line after a expected package/prefix pair. + // (i.e. - "frameworkName: file.proto # comment") + // + // Any number of files can be listed for a framework, just separate them + // with commas. + // + // There can be multiple lines listing the same frameworkName incase it + // has a lot of proto files included in it; having multiple lines makes + // things easier to read. If a proto file is not configured in the + // mappings file, it will use the default framework name if one was passed + // with generate_for_named_framework, or the relative path to it's include + // path otherwise. + generation_options.named_framework_to_proto_path_mappings_path = options[i].second; + } else { + *error = "error: Unknown generator option: " + options[i].first; + return false; + } + } + + // ----------------------------------------------------------------- + + // Validate the objc prefix/package pairings. + if (!ValidateObjCClassPrefixes(files, generation_options, error)) { + // *error will have been filled in. + return false; + } + + for (int i = 0; i < files.size(); i++) { + const FileDescriptor* file = files[i]; + FileGenerator file_generator(file, generation_options); + string filepath = FilePath(file); + + // Generate header. + { + scoped_ptr<io::ZeroCopyOutputStream> output( + context->Open(filepath + ".pbobjc.h")); + io::Printer printer(output.get(), '$'); + file_generator.GenerateHeader(&printer); + } + + // Generate m file. + { + scoped_ptr<io::ZeroCopyOutputStream> output( + context->Open(filepath + ".pbobjc.m")); + io::Printer printer(output.get(), '$'); + file_generator.GenerateSource(&printer); + } + } + + return true; +} + +} // namespace objectivec +} // namespace compiler +} // namespace protobuf +} // namespace google |