yosys/kernel/json.h

105 lines
2.8 KiB
C++

/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2022 Jannis Harder <jix@yosyshq.com> <me@jix.one>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef JSON_H
#define JSON_H
#include "kernel/yosys.h"
#include "libs/json11/json11.hpp"
#include <functional>
YOSYS_NAMESPACE_BEGIN
using json11::Json;
class PrettyJson
{
enum Scope {
VALUE,
OBJECT_FIRST,
OBJECT,
ARRAY_FIRST,
ARRAY,
};
struct Target {
virtual void emit(const char *data) = 0;
virtual void flush() {};
virtual ~Target() {};
};
std::string newline_indent = "\n";
std::vector<std::unique_ptr<Target>> targets;
std::vector<Scope> state = {VALUE};
int compact_depth = INT_MAX;
public:
void emit_to_log();
void append_to_string(std::string &target);
bool write_to_file(const std::string &path);
bool active() { return !targets.empty(); }
void compact() { compact_depth = GetSize(state); }
void line(bool space_if_inline = true);
void raw(const char *raw_json);
void flush();
void begin_object();
void begin_array();
void end_object();
void end_array();
void name(const char *name);
void begin_value();
void end_value();
void value_json(const Json &value);
void value(unsigned int value) { value_json(Json((int)value)); }
template<typename T>
void value(T &&value) { value_json(Json(std::forward<T>(value))); };
void entry_json(const char *name, const Json &value);
void entry(const char *name, unsigned int value) { entry_json(name, Json((int)value)); }
template<typename T>
void entry(const char *name, T &&value) { entry_json(name, Json(std::forward<T>(value))); };
template<typename T>
void object(const T &&values)
{
begin_object();
for (auto &item : values)
entry(item.first, item.second);
end_object();
}
template<typename T>
void array(const T &&values)
{
begin_object();
for (auto &item : values)
value(item);
end_object();
}
};
YOSYS_NAMESPACE_END
#endif