Difference between revisions of "How to use MessageCallBackHandler Class"

Revision as of 12:41, 5 December 2023

This is a small example showing how to use MessageCallBackHandler Class:

In C++:

#include <iostream>

#include "veri_file.h"

#include "Message.h"
#include "Strings.h"

#ifdef VERIFIC_NAMESPACE
using namespace Verific ;
#endif

class MyMsgCallBack : public MessageCallBackHandler
{
public:
    MyMsgCallBack() : MessageCallBackHandler(), _msg_string(0) { }
    virtual ~MyMsgCallBack() { Strings::free(_msg_string) ; _msg_string = 0 ; }

private:
    MyMsgCallBack(const MyMsgCallBack &) ;
    MyMsgCallBack& operator=(const MyMsgCallBack &) ;

public:
    virtual void Msg(msg_type_t msg_type, const char *message_id, linefile_type linefile, const char *msg_str) ;

    const char * GetMessageString() const { return _msg_string ; }

private:
    char *_msg_string ;
} ; // class MyMsgCallBack

void MyMsgCallBack::Msg(msg_type_t /*msg_type*/, const char * /*message_id*/, linefile_type /*linefile*/, const char *msg_str)
{
    if (!_msg_string) {
        _msg_string = Strings::save(msg_str) ;
    } else {
        char *tmp = _msg_string ;
        _msg_string = Strings::save(_msg_string, "\n", msg_str) ;
        Strings::free(tmp) ;
    }
}

int main(int argc, const char **argv)
{
    MyMsgCallBack mmcb ;
    Message::RegisterCallBackMsg(&mmcb) ;

    const char *in_file = (argc > 1) ? argv[1] : "test.v" ;
    if (!veri_file::Analyze(in_file)) return 1 ;

    const char *msg_str = mmcb.GetMessageString() ;
    std::cout << "\nAccumulated messages: \n" << msg_str << std::endl ;

    return 0 ;
}
 

test.v:

module test (output [3:0] out) ;
    assign out = {1} ;
endmodule
 

Run:

[moh@awing0 15065]$ ./test-linux
-- Analyzing Verilog file 'test.v' (VERI-1482)
test.v(2): WARNING: concatenation with an unsized literal will be treated as 32 bits (VERI-1320)

Accumulated messages: 
Analyzing Verilog file 'test.v'
concatenation with an unsized literal will be treated as 32 bits
[moh@awing0 15065]$ 
 

In Python:

#!/usr/bin/python
import sys
sys.path.append('../py')
import Verific

class MyMessageCallBack(Verific.MessageCallBackHandler,object):

    _msg_string = "\nAccumulated message:\n"

    def __init__(obj):
        if not obj:
            return
        super(MyMessageCallBack,obj).__init__()
 
    def Msg(self, msg_type, message_id, linefile, msg_str):
        self._msg_string = self._msg_string + "\t" + self.GetLinefile(linefile) + self.GetMsgType(msg_type) + msg_str + " (" + message_id + ")\n"

    def GetLinefile(self, linefile):
        if not linefile:
            return ""
        return Verific.LineFile_GetFileName(linefile) + "(" + str(Verific.LineFile_GetLineNo(linefile)) + "): "

    def GetMsgType(self, msg_type):
        if (msg_type==Verific.VERIFIC_INFO):
            return "INFO: "
        elif (msg_type==Verific.VERIFIC_WARNING):
            return "WARNING: "
        elif (msg_type==Verific.VERIFIC_ERROR):
            return "ERROR: "
        return "-- "

    def GetMessageString(self):
        return self._msg_string

mc = MyMessageCallBack()
Verific.Message_RegisterCallBackMsg(mc)

if (not Verific.veri_file_Analyze("test.v")):
    print("Error during analysis. Exiting.")
    sys.exit(1)

print mc.GetMessageString()

sys.exit(0)

 

Run:

[moh@awing0 15065]$ ./test.py 
-- Analyzing Verilog file 'test.v' (VERI-1482)
test.v(2): WARNING: concatenation with an unsized literal will be treated as 32 bits (VERI-1320)

Accumulated message:
	-- Analyzing Verilog file 'test.v' (VERI-1482)
	test.v(2): WARNING: concatenation with an unsized literal will be treated as 32 bits (VERI-1320)

[moh@awing0 15065]$ 
 

In Perl:

#!/usr/bin/perl -w

use strict ;
use warnings ;

use lib "../pm" ;
require "Verific.pm" ;

use Verific ;

{
    package MyMessageCallBack ;
        use base 'Verific::MessageCallBackHandler' ;

        my $msg_string = "\nAccumulated message:\n" ;

        sub Msg
        {
            my ($class, $msg_type, $message_id, $linefile, $msg_str) = (@_) ;
            $msg_string .= "\t" . GetLinefile($linefile) . GetMsgType($msg_type) . "$msg_str ($message_id)\n" ;
        }

        sub GetLinefile
        {
            my ($linefile) = (@_) ;
            if (!$linefile) { return "" ; } ;
            return Verific::LineFile::GetFileName($linefile) . "(" . Verific::LineFile::GetLineNo($linefile) . "): " ;
        }

        sub GetMsgType
        {
            my ($msg_type) = (@_) ;
            if ($msg_type == $Verific::VERIFIC_INFO) {
                return "INFO: ";
            }
            elsif ($msg_type == $Verific::VERIFIC_WARNING) {
                return "WARNING: ";
            }
            elsif ($msg_type == $Verific::VERIFIC_ERROR) {
                return "ERROR: ";
            }
            return "-- ";
        }

        sub GetMessageString
        {
            return "$msg_string" ;
        }
}

my $mc = MyMessageCallBack->new() ;
Verific::Message::RegisterCallBackMsg($mc) ;

if (!Verific::veri_file::Analyze("test.v")) {
    print "Error during analysis. Exiting.\n" ;
    exit(1) ;
}

print $mc->GetMessageString() ;

exit(0) ;
 

Run:

-- Analyzing Verilog file 'test.v' (VERI-1482)
test.v(2): WARNING: concatenation with an unsized literal will be treated as 32 bits (VERI-1320)

Accumulated message:
	-- Analyzing Verilog file 'test.v' (VERI-1482)
	test.v(2): WARNING: concatenation with an unsized literal will be treated as 32 bits (VERI-1320)
[moh@awing0 15065]$