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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 frontend.
*
* This frontend is using the AST frontend library (see frontends/ast/).
* Thus this frontend does not generate RTLIL code directly but creates an
* AST directly from the Verilog parse tree and then passes this AST to
* the AST frontend library.
*
*/
#ifndef VERILOG_FRONTEND_H
#define VERILOG_FRONTEND_H
#include "kernel/yosys.h"
#include "frontends/ast/ast.h"
#include <stdio.h>
#include <stdint.h>
#include <list>
YOSYS_NAMESPACE_BEGIN
namespace VERILOG_FRONTEND
{
// this variable is set to a new AST_DESIGN node and then filled with the AST by the bison parser
extern struct AST::AstNode *current_ast;
// this function converts a Verilog constant to an AST_CONSTANT node
AST::AstNode *const2ast(std::string code, char case_type = 0, bool warn_z = false);
// state of `default_nettype
extern bool default_nettype_wire;
// running in SystemVerilog mode
extern bool sv_mode;
// running in -formal mode
extern bool formal_mode;
// lexer input stream
extern std::istream *lexin;
}
// the pre-processor
std::string frontend_verilog_preproc(std::istream &f, std::string filename, const std::map<std::string, std::string> pre_defines_map, const std::list<std::string> include_dirs);
YOSYS_NAMESPACE_END
// the usual bison/flex stuff
extern int frontend_verilog_yydebug;
int frontend_verilog_yylex(void);
void frontend_verilog_yyerror(char const *fmt, ...);
void frontend_verilog_yyrestart(FILE *f);
int frontend_verilog_yyparse(void);
int frontend_verilog_yylex_destroy(void);
int frontend_verilog_yyget_lineno(void);
void frontend_verilog_yyset_lineno (int);
#endif
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