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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* 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.
*
* ---
*
* The Verilog preprocessor.
*
*/
#ifndef VERILOG_PREPROC_H
#define VERILOG_PREPROC_H
#include "kernel/yosys.h"
#include <iosfwd>
#include <list>
#include <memory>
#include <string>
YOSYS_NAMESPACE_BEGIN
struct define_body_t;
struct arg_map_t;
struct define_map_t
{
define_map_t();
~ define_map_t();
// Add a definition, overwriting any existing definition for name.
void add(const std::string &name, const std::string &txt, const arg_map_t *args = nullptr);
// Merge in another map of definitions (which take precedence
// over anything currently defined).
void merge(const define_map_t &map);
// Find a definition by name. If no match, returns null.
const define_body_t *find(const std::string &name) const;
// Erase a definition by name (no effect if not defined).
void erase(const std::string &name);
// Clear any existing definitions
void clear();
// Print a list of definitions, using the log function
void log() const;
std::map<std::string, std::unique_ptr<define_body_t>> defines;
};
struct define_map_t;
std::string
frontend_verilog_preproc(std::istream &f,
std::string filename,
const define_map_t &pre_defines,
define_map_t &global_defines_cache,
const std::list<std::string> &include_dirs);
YOSYS_NAMESPACE_END
#endif
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