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|
#!/usr/bin/perl
# global exception list file
my $global_list = '../../ExceptionCodes.txt';
my @exception;
my @exception_desc;
my $class;
my $class_number;
# read the description!
open EXCEPTION_DESC,$ARGV[0] or die "Can't open $ARGV[0]";
while(<EXCEPTION_DESC>)
{
chomp; s/\A\s+//; s/#.+\Z//; s/\s+\Z//; s/\s+/ /g;
next unless m/\S/;
if(m/\AEXCEPTION\s+(.+)\s+(\d+)\Z/)
{
$class = $1;
$class_number = $2;
}
else
{
my ($name,$number,$description) = split /\s+/,$_,3;
if($name eq '' || $number =~ m/\D/)
{
die "Bad line '$_'";
}
if($exception[$number] ne '')
{
die "Duplicate exception number $number";
}
$exception[$number] = $name;
$exception_desc[$number] = $description;
}
}
die "Exception class and number not specified" unless $class ne '' && $class_number ne '';
close EXCEPTION_DESC;
# write the code
print "Generating $class exception...\n";
open CPP,">autogen_${class}Exception.cpp" or die "Can't open cpp file for writing";
open H,">autogen_${class}Exception.h" or die "Can't open h file for writing";
# write header file
my $guardname = uc 'AUTOGEN_'.$class.'EXCEPTION_H';
print H <<__E;
// Auto-generated file -- do not edit
#ifndef $guardname
#define $guardname
#include "BoxException.h"
// --------------------------------------------------------------------------
//
// Class
// Name: ${class}Exception
// Purpose: Exception
// Created: autogen
//
// --------------------------------------------------------------------------
class ${class}Exception : public BoxException
{
public:
${class}Exception(unsigned int SubType)
: mSubType(SubType)
{
}
${class}Exception(const ${class}Exception &rToCopy)
: mSubType(rToCopy.mSubType)
{
}
~${class}Exception() throw ()
{
}
enum
{
ExceptionType = $class_number
};
enum
{
__E
for(my $e = 0; $e <= $#exception; $e++)
{
if($exception[$e] ne '')
{
print H "\t\t".$exception[$e].' = '.$e.(($e==$#exception)?'':',')."\n"
}
}
print H <<__E;
};
virtual unsigned int GetType() const throw();
virtual unsigned int GetSubType() const throw();
virtual const char *what() const throw();
private:
unsigned int mSubType;
};
#endif // $guardname
__E
# -----------------------------------------------------------------------------------------------------------
print CPP <<__E;
// Auto-generated file -- do not edit
#include "Box.h"
#include "autogen_${class}Exception.h"
#include "MemLeakFindOn.h"
#ifdef EXCEPTION_CODENAMES_EXTENDED
#ifdef EXCEPTION_CODENAMES_EXTENDED_WITH_DESCRIPTION
static const char *whats[] = {
__E
my $last_seen = -1;
for(my $e = 0; $e <= $#exception; $e++)
{
if($exception[$e] ne '')
{
for(my $s = $last_seen + 1; $s < $e; $s++)
{
print CPP "\t\"UNUSED\",\n"
}
my $ext = ($exception_desc[$e] ne '')?" ($exception_desc[$e])":'';
print CPP "\t\"${class} ".$exception[$e].$ext.'"'.(($e==$#exception)?'':',')."\n";
$last_seen = $e;
}
}
print CPP <<__E;
};
#else
static const char *whats[] = {
__E
$last_seen = -1;
for(my $e = 0; $e <= $#exception; $e++)
{
if($exception[$e] ne '')
{
for(my $s = $last_seen + 1; $s < $e; $s++)
{
print CPP "\t\"UNUSED\",\n"
}
print CPP "\t\"${class} ".$exception[$e].'"'.(($e==$#exception)?'':',')."\n";
$last_seen = $e;
}
}
print CPP <<__E;
};
#endif
#endif
unsigned int ${class}Exception::GetType() const throw()
{
return ${class}Exception::ExceptionType;
}
unsigned int ${class}Exception::GetSubType() const throw()
{
return mSubType;
}
const char *${class}Exception::what() const throw()
{
#ifdef EXCEPTION_CODENAMES_EXTENDED
if(mSubType < 0 || mSubType > (sizeof(whats) / sizeof(whats[0])))
{
return "${class}";
}
return whats[mSubType];
#else
return "${class}";
#endif
}
__E
close H;
close CPP;
# update the global exception list
my $list_before;
my $list_after;
my $is_after = 0;
if(open CURRENT,$global_list)
{
while(<CURRENT>)
{
next if m/\A#/;
if(m/\AEXCEPTION TYPE (\w+) (\d+)/)
{
# check that the number isn't being reused
if($2 == $class_number && $1 ne $class)
{
die "Class number $class_number is being used by $class and $1 -- correct this.\n";
}
if($2 > $class_number)
{
# This class comes after the current one (ensures numerical ordering)
$is_after = 1;
}
if($1 eq $class)
{
# skip this entry
while(<CURRENT>)
{
last if m/\AEND TYPE/;
}
$_ = '';
}
}
if($is_after)
{
$list_after .= $_;
}
else
{
$list_before .= $_;
}
}
close CURRENT;
}
open GLOBAL,">$global_list" or die "Can't open global exception code listing for writing";
print GLOBAL <<__E;
#
# automatically generated file, do not edit.
#
# This file lists all the exception codes used by the system.
# Use to look up more detailed descriptions of meanings of errors.
#
__E
print GLOBAL $list_before;
print GLOBAL "EXCEPTION TYPE $class $class_number\n";
for(my $e = 0; $e <= $#exception; $e++)
{
if($exception[$e] ne '')
{
my $ext = ($exception_desc[$e] ne '')?" - $exception_desc[$e]":'';
print GLOBAL "($class_number/$e) - ${class} ".$exception[$e].$ext."\n";
}
}
print GLOBAL "END TYPE\n";
print GLOBAL $list_after;
close GLOBAL;
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