// Protocol Buffers - Google's data interchange format
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// Author: kenton@google.com (Kenton Varda)
#ifndef GOOGLE_PROTOBUF_COMPILER_MOCK_CODE_GENERATOR_H__
#define GOOGLE_PROTOBUF_COMPILER_MOCK_CODE_GENERATOR_H__
#include <string>
#include <google/protobuf/compiler/code_generator.h>
namespace google {
namespace protobuf {
class FileDescriptor;
} // namespace protobuf
} // namespace google
namespace google {
namespace protobuf {
namespace compiler {
// A mock CodeGenerator, used by command_line_interface_unittest. This is in
// its own file so that it can be used both directly and as a plugin.
//
// Generate() produces some output which can be checked by ExpectCalled(). The
// generator can run in a different process (e.g. a plugin).
//
// If the parameter is "insert=NAMES", the MockCodeGenerator will insert lines
// into the files generated by other MockCodeGenerators instead of creating
// its own file. NAMES is a comma-separated list of the names of those other
// MockCodeGenerators.
//
// MockCodeGenerator will also modify its behavior slightly if the input file
// contains a message type with one of the following names:
// MockCodeGenerator_Error: Causes Generate() to return false and set the
// error message to "Saw message type MockCodeGenerator_Error."
// MockCodeGenerator_Exit: Generate() prints "Saw message type
// MockCodeGenerator_Exit." to stderr and then calls exit(123).
// MockCodeGenerator_Abort: Generate() prints "Saw message type
// MockCodeGenerator_Abort." to stderr and then calls abort().
// MockCodeGenerator_HasSourceCodeInfo: Causes Generate() to abort after
// printing "Saw message type MockCodeGenerator_HasSourceCodeInfo: FOO." to
// stderr, where FOO is "1" if the supplied FileDescriptorProto has source
// code info, and "0" otherwise.
// MockCodeGenerator_Annotate: Generate() will add annotations to its output
// that can later be verified with CheckGeneratedAnnotations.
class MockCodeGenerator : public CodeGenerator {
public:
MockCodeGenerator(const std::string& name);
virtual ~MockCodeGenerator();
// Expect (via gTest) that a MockCodeGenerator with the given name was called
// with the given parameters by inspecting the output location.
//
// |insertions| is a comma-separated list of names of MockCodeGenerators which
// should have inserted lines into this file.
// |parsed_file_list| is a comma-separated list of names of the files
// that are being compiled together in this run.
static void ExpectGenerated(const std::string& name,
const std::string& parameter,
const std::string& insertions,
const std::string& file,
const std::string& first_message_name,
const std::string& parsed_file_list,
const std::string& output_directory);
// Checks that the correct text ranges were annotated by the
// MockCodeGenerator_Annotate directive.
static void CheckGeneratedAnnotations(const std::string& name,
const std::string& file,
const std::string& output_directory);
// Get the name of the file which would be written by the given generator.
static std::string GetOutputFileName(const std::string& generator_name,
const FileDescriptor* file);
static std::string GetOutputFileName(const std::string& generator_name,
const std::string& file);
// implements CodeGenerator ----------------------------------------
virtual bool Generate(const FileDescriptor* file,
const std::string& parameter,
GeneratorContext* context,
std::string* error) const;
private:
std::string name_;
static std::string GetOutputFileContent(const std::string& generator_name,
const std::string& parameter,
const FileDescriptor* file,
GeneratorContext *context);
static std::string GetOutputFileContent(const std::string& generator_name,
const std::string& parameter,
const std::string& file,
const std::string& parsed_file_list,
const std::string& first_message_name);
};
} // namespace compiler
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_COMPILER_MOCK_CODE_GENERATOR_H__
