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ConstParser instead of const2ast using global state

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This commit is contained in:
Emil J. Tywoniak 2025-05-26 17:16:24 +02:00
parent 24cd4aadd1
commit 33376da034
5 changed files with 77 additions and 31 deletions
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21
frontends/verilog/verilog_frontend.h
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@ -45,8 +45,25 @@ YOSYS_NAMESPACE_BEGIN
namespace VERILOG_FRONTEND
{
// 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);
/* Ephemeral context class */
struct ConstParser {
std::optional<std::string> filename;
std::optional<AST::AstSrcLocType> loc;
private:
std::string fmt_maybe_loc(std::string msg);
void log_maybe_loc_error(std::string msg);
void log_maybe_loc_warn(std::string msg);
// divide an arbitrary length decimal number by two and return the rest
int my_decimal_div_by_two(std::vector<uint8_t> &digits);
// find the number of significant bits in a binary number (not including the sign bit)
int my_ilog2(int x);
// parse a binary, decimal, hexadecimal or octal number with support for special bits ('x', 'z' and '?')
void my_strtobin(std::vector<RTLIL::State> &data, const char *str, int len_in_bits, int base, char case_type, bool is_unsized);
public:
// convert the Verilog code for a constant to an AST node
std::unique_ptr<AST::AstNode> const2ast(std::string code, char case_type = 0, bool warn_z = false);
};
extern void frontend_verilog_yyerror(char const *fmt, ...);
};