1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
#!/usr/bin/perl -w
#
# Generate overload.h
# This allows the order of overloading constants to be changed.
#
BEGIN {
# Get function prototypes
require '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;
}
safer_unlink ('overload.h', 'overload.c');
die "overload.h: $!" unless open(C, ">overload.c");
binmode C;
die "overload.h: $!" unless open(H, ">overload.h");
binmode H;
sub print_header {
my $file = shift;
print <<"EOF";
/* -*- buffer-read-only: t -*-
*
* $file
*
* Copyright (C) 1997, 1998, 2000, 2001, 2005, 2006, 2007 by Larry Wall
* and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
* This file is built by overload.pl
*/
EOF
}
select C;
print_header('overload.c');
select H;
print_header('overload.h');
print <<'EOF';
enum {
EOF
print " ${_}_amg,\n", foreach @enums;
print <<'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)
const U8 PL_AMG_namelens[NofAMmeth] = {
EOF
my $last = pop @names;
print C " $_,\n" foreach map { length $_ } @names;
my $lastlen = length $last;
print C <<"EOT";
$lastlen
};
char * const PL_AMG_names[NofAMmeth] = {
/* Names kept in the symbol table. fallback => "()", the rest has
"(" prepended. The only other place in perl which knows about
this convention is AMG_id2name (used for debugging output and
'nomethod' only), the only other place which has it hardwired is
overload.pm. */
EOT
print C " \"$_\",\n" foreach map { s/(["\\"])/\\$1/g; $_ } @names;
print C <<"EOT";
"$last"
};
EOT
close H or die $!;
close C or die $!;
__DATA__
# Fallback should be the first
fallback ()
# These 5 are the most common in the fallback switch statement in amagic_call
to_sv (${}
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 (~~
# Note: Perl_Gv_AMupdate() assumes that DESTROY is the last entry
DESTROY DESTROY
|
