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/*
* Copyright 2015 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// Command line helpers.
//
#ifndef wasm_support_command_line_h
#define wasm_support_command_line_h
#include <functional>
#include <map>
#include <string>
#include <utility>
#include <vector>
#include "wasm.h"
namespace wasm {
class Options {
public:
using Action = std::function<void(Options *, const std::string& )>;
enum class Arguments { Zero, One, N, Optional };
bool debug;
std::map<std::string, std::string> extra;
Options(const std::string& command, const std::string& description);
~Options();
Options &add(const std::string& longName, const std::string& shortName,
const std::string& description, Arguments arguments,
const Action& action);
Options &add_positional(const std::string& name, Arguments arguments,
const Action &action);
void parse(int argc, const char *argv[]);
private:
Options() = delete;
Options(const Options &) = delete;
Options &operator=(const Options &) = delete;
struct Option {
std::string longName;
std::string shortName;
std::string description;
Arguments arguments;
Action action;
size_t seen;
};
std::vector<Option> options;
Arguments positional;
std::string positionalName;
Action positionalAction;
};
} // namespace wasm
#endif // wasm_support_command_line_h
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