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This commit is contained in:
Emil J. Tywoniak 2025-05-23 20:15:49 +02:00
parent 1acbb5b89b
commit d9943b3727
12 changed files with 1132 additions and 1108 deletions

View file

@ -36,12 +36,6 @@
#define yyFlexLexer frontend_verilog_yyFlexLexer
#include <FlexLexer.h>
#endif
YOSYS_NAMESPACE_BEGIN
namespace VERILOG_FRONTEND {
class VerilogLexer;
};
YOSYS_NAMESPACE_END
#include "frontends/verilog/verilog_parser.tab.hh"
#include <stdio.h>
#include <stdint.h>
@ -51,75 +45,9 @@ 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
std::unique_ptr<AST::AstNode> const2ast(std::string code, char case_type = 0, bool warn_z = false);
// names of locally typedef'ed types in a stack
typedef std::map<std::string, AST::AstNode*> UserTypeMap;
extern std::vector<UserTypeMap> user_type_stack;
// names of package typedef'ed types
extern dict<std::string, AST::AstNode*> pkg_user_types;
// 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;
// running in -noassert mode
extern bool noassert_mode;
// running in -noassume mode
extern bool noassume_mode;
// running in -norestrict mode
extern bool norestrict_mode;
// running in -assume-asserts mode
extern bool assume_asserts_mode;
// running in -assert-assumes mode
extern bool assert_assumes_mode;
// running in -lib mode
extern bool lib_mode;
// running in -specify mode
extern bool specify_mode;
// lexer input stream
extern std::istream *lexin;
using parser = frontend_verilog_yy::parser;
class VerilogLexer : public frontend_verilog_yyFlexLexer {
public:
VerilogLexer(std::istream* in = nullptr) : frontend_verilog_yyFlexLexer(in) {}
~VerilogLexer() override {}
// autogenerated body due to YY_DECL
parser::symbol_type nextToken();
// get rid of override virtual function warning
using FlexLexer::yylex;
parser::symbol_type terminate() {
return parser::make_FRONTEND_VERILOG_YYEOF(out_loc);
}
parser::location_type out_loc;
private:
std::vector<std::string> fn_stack;
std::vector<int> ln_stack;
parser::location_type real_loc;
parser::location_type old_loc;
};
extern void frontend_verilog_yyerror(char const *fmt, ...);
// parser::symbol_type frontend_verilog_yylex(VerilogLexer& lexer) {
// return lexer.nextToken();
// };
};
YOSYS_NAMESPACE_END