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|
#!/usr/bin/perl -w
#
# Regenerate (overwriting only if changed):
#
# overload.h
# overload.c
# lib/overload/numbers.pm
#
# from information stored in the DATA section of this file.
#
# This allows the order of overloading constants to be changed.
#
# Accepts the standard regen_lib -q and -v args.
#
# This script is normally invoked from regen.pl.
BEGIN {
# Get function prototypes
require 'regen/regen_lib.pl';
}
use strict;
my (@enums, @names);
while (<DATA>) {
next if /^#/;
next if /^$/;
my ($enum, $name) = /^(\S+)\s+(\S+)/ or die "Can't parse $_";
push @enums, $enum;
push @names, $name;
}
my ($c, $h) = map {
open_new($_, '>',
{ by => 'regen/overload.pl', file => $_, style => '*',
copyright => [1997, 1998, 2000, 2001, 2005 .. 2007, 2011] });
} 'overload.c', 'overload.h';
mkdir("lib/overload", 0777) unless -d 'lib/overload';
my $p = open_new('lib/overload/numbers.pm', '>',
{ by => 'regen/overload.pl',
file => 'lib/overload/numbers.pm', copyright => [2008] });
{
local $" = "\n ";
print $p <<"EOF";
package overload::numbers;
our \@names = qw#
@names
#;
our \@enums = qw#
@enums
#;
{ my \$i = 0; our %names = map { \$_ => \$i++ } \@names }
{ my \$i = 0; our %enums = map { \$_ => \$i++ } \@enums }
EOF
}
print $h "enum {\n";
for (0..$#enums) {
my $op = $names[$_];
$op = 'fallback' if $op eq '()';
$op =~ s/^\(//;
die if $op =~ m{\*/};
my $l = 3 - int((length($enums[$_]) + 9) / 8);
$l = 1 if $l < 1;
printf $h " %s_amg,%s/* 0x%02x %-8s */\n", $enums[$_],
("\t" x $l), $_, $op;
}
print $h <<'EOF';
max_amg_code
/* Do not leave a trailing comma here. C9X allows it, C89 doesn't. */
};
#define NofAMmeth max_amg_code
EOF
print $c <<'EOF';
#define AMG_id2name(id) (PL_AMG_names[id]+1)
#define AMG_id2namelen(id) (PL_AMG_namelens[id]-1)
static const U8 PL_AMG_namelens[NofAMmeth] = {
EOF
my $last = pop @names;
print $c map { " " . (length $_) . ",\n" } @names;
my $lastlen = length $last;
print $c <<"EOT";
$lastlen
};
static const char * const PL_AMG_names[NofAMmeth] = {
/* Names kept in the symbol table. fallback => "()", the rest has
"(" prepended. The only other place in perl which knows about
this convention is AMG_id2name (used for debugging output and
'nomethod' only), the only other place which has it hardwired is
overload.pm. */
EOT
for (0..$#names) {
my $n = $names[$_];
$n =~ s/(["\\])/\\$1/g;
my $l = 3 - int((length($n) + 7) / 8);
$l = 1 if $l < 1;
printf $c " \"%s\",%s/* %-10s */\n", $n, ("\t" x $l), $enums[$_];
}
print $c <<"EOT";
"$last"
};
EOT
foreach ($h, $c, $p) {
read_only_bottom_close_and_rename($_);
}
__DATA__
# Fallback should be the first
fallback ()
# These 5 are the most common in the fallback switch statement in amagic_call
to_sv (${}
to_av (@{}
to_hv (%{}
to_gv (*{}
to_cv (&{}
# These have non-default cases in that switch statement
inc (++
dec (--
bool_ (bool
numer (0+
string (""
not (!
copy (=
abs (abs
neg (neg
iter (<>
int (int
# These 12 feature in the next switch statement
lt (<
le (<=
gt (>
ge (>=
eq (==
ne (!=
slt (lt
sle (le
sgt (gt
sge (ge
seq (eq
sne (ne
nomethod (nomethod
add (+
add_ass (+=
subtr (-
subtr_ass (-=
mult (*
mult_ass (*=
div (/
div_ass (/=
modulo (%
modulo_ass (%=
pow (**
pow_ass (**=
lshift (<<
lshift_ass (<<=
rshift (>>
rshift_ass (>>=
band (&
band_ass (&=
bor (|
bor_ass (|=
bxor (^
bxor_ass (^=
ncmp (<=>
scmp (cmp
compl (~
atan2 (atan2
cos (cos
sin (sin
exp (exp
log (log
sqrt (sqrt
repeat (x
repeat_ass (x=
concat (.
concat_ass (.=
smart (~~
ftest (-X
regexp (qr
|
