#!/usr/bin/perl
-chmod 0666, "opcode.h", "opnames.h";
-unlink "opcode.h", "opnames.h";
-open(OC, ">opcode.h") || die "Can't create opcode.h: $!\n";
-open(ON, ">opnames.h") || die "Can't create opnames.h: $!\n";
+$opcode_new = 'opcode.h-new';
+$opname_new = 'opnames.h-new';
+open(OC, ">$opcode_new") || die "Can't create $opcode_new: $!\n";
+open(ON, ">$opname_new") || die "Can't create $opname_new: $!\n";
select OC;
# Read data.
$i = 0;
print <<"END";
-/* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
- This file is built by opcode.pl from its data. Any changes made here
- will be lost!
-*/
+/*
+ * opcode.h
+ *
+ * Copyright (c) 1997-2002, Larry Wall
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
+ * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
+ * This file is built by opcode.pl from its data. Any changes made here
+ * will be lost!
+ */
#define Perl_pp_i_preinc Perl_pp_preinc
#define Perl_pp_i_predec Perl_pp_predec
END
print ON <<"END";
-/* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
- This file is built by opcode.pl from its data. Any changes made here
- will be lost!
-*/
+/*
+ * opnames.h
+ *
+ * Copyright (c) 1997-2002, Larry Wall
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
+ *
+ * !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
+ * This file is built by opcode.pl from its data. Any changes made here
+ * will be lost!
+ */
typedef enum opcode {
END
START_EXTERN_C
+
+#define OP_NAME(o) (o->op_type == OP_CUSTOM ? custom_op_name(o) : \\
+ PL_op_name[o->op_type])
+#define OP_DESC(o) (o->op_type == OP_CUSTOM ? custom_op_desc(o) : \\
+ PL_op_desc[o->op_type])
+
#ifndef DOINIT
EXT char *PL_op_name[];
#else
END
for (@ops) {
- print "\tMEMBER_TO_FPTR(Perl_pp_$_),\n";
+ print "\tMEMBER_TO_FPTR(Perl_pp_$_),\n" unless $_ eq "custom";
}
print <<END;
$argsum |= 32 if $flags =~ /I/; # has corresponding int op
$argsum |= 64 if $flags =~ /d/; # danger, unknown side effects
$argsum |= 128 if $flags =~ /u/; # defaults to $_
-
$flags =~ /([\W\d_])/ or die qq[Opcode "$_" has no class indicator];
$argsum |= $opclass{$1} << 9;
$mul = 0x2000; # 2 ^ OASHIFT
close OC or die "Error closing opcode.h: $!";
close ON or die "Error closing opnames.h: $!";
-unlink "pp_proto.h";
-unlink "pp.sym";
-open PP, '>pp_proto.h' or die "Error creating pp_proto.h: $!";
-open PPSYM, '>pp.sym' or die "Error creating pp.sym: $!";
+chmod 0600, 'opcode.h'; # required by dosish filesystems
+chmod 0600, 'opnames.h'; # required by dosish filesystems
+
+# Some dosish systems can't rename over an existing file:
+unlink "$_-old" for qw(opcode.h opnames.h);
+rename $_, "$_-old" for qw(opcode.h opnames.h);
+
+rename $opcode_new, 'opcode.h' or die "renaming opcode.h: $!\n";
+rename $opname_new, 'opnames.h' or die "renaming opnames.h: $!\n";
+
+$pp_proto_new = 'pp_proto.h-new';
+$pp_sym_new = 'pp.sym-new';
+
+open PP, ">$pp_proto_new" or die "Error creating $pp_proto_new: $!";
+open PPSYM, ">$pp_sym_new" or die "Error creating $pp_sym_new: $!";
print PP <<"END";
/* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
for (@ops) {
next if /^i_(pre|post)(inc|dec)$/;
+ next if /^custom$/;
print PP "PERL_PPDEF(Perl_pp_$_)\n";
print PPSYM "Perl_pp_$_\n";
}
close PP or die "Error closing pp_proto.h: $!";
close PPSYM or die "Error closing pp.sym: $!";
+chmod 0600, 'pp_proto.h'; # required by dosish filesystems
+chmod 0600, 'pp.sym'; # required by dosish filesystems
+
+# Some dosish systems can't rename over an existing file:
+unlink "$_-old" for qw(pp_proto.h pp.sym);
+rename $_, "$_-old" for qw(pp_proto.h pp.sym);
+
+rename $pp_proto_new, 'pp_proto.h' or die "rename pp_proto.h: $!\n";
+rename $pp_sym_new, 'pp.sym' or die "rename pp.sym: $!\n";
+
###########################################################################
sub tab {
local($l, $t) = @_;
# New ops always go at the very end
+# A recapitulation of the format of this file:
+# The file consists of five columns: the name of the op, an English
+# description, the name of the "check" routine used to optimize this
+# operation, some flags, and a description of the operands.
+
+# The flags consist of options followed by a mandatory op class signifier
+
+# The classes are:
+# baseop - 0 unop - 1 binop - 2
+# logop - | listop - @ pmop - /
+# padop/svop - $ padop - # (unused) loop - {
+# baseop/unop - % loopexop - } filestatop - -
+# pvop/svop - "
+
+# Other options are:
+# needs stack mark - m
+# needs constant folding - f
+# produces a scalar - s
+# produces an integer - i
+# needs a target - t
+# target can be in a pad - T
+# has a corresponding integer version - I
+# has side effects - d
+# uses $_ if no argument given - u
+
+# Values for the operands are:
+# scalar - S list - L array - A
+# hash - H sub (CV) - C file - F
+# socket - Fs filetest - F- reference - R
+# "?" denotes an optional operand.
+
# Nothing.
null null operation ck_null 0
backtick quoted execution (``, qx) ck_open t%
# glob defaults its first arg to $_
glob glob ck_glob t@ S?
-readline <HANDLE> ck_null t%
-rcatline append I/O operator ck_null t%
+readline <HANDLE> ck_null t% F?
+rcatline append I/O operator ck_null t$
# Bindable operators.
ncmp numeric comparison (<=>) ck_null Iifst2 S S
i_ncmp integer comparison (<=>) ck_null ifst2 S S
-slt string lt ck_scmp ifs2 S S
-sgt string gt ck_scmp ifs2 S S
-sle string le ck_scmp ifs2 S S
-sge string ge ck_scmp ifs2 S S
+slt string lt ck_null ifs2 S S
+sgt string gt ck_null ifs2 S S
+sle string le ck_null ifs2 S S
+sge string ge ck_null ifs2 S S
seq string eq ck_null ifs2 S S
sne string ne ck_null ifs2 S S
-scmp string comparison (cmp) ck_scmp ifst2 S S
+scmp string comparison (cmp) ck_null ifst2 S S
bit_and bitwise and (&) ck_bitop fst2 S S
bit_xor bitwise xor (^) ck_bitop fst2 S S
index index ck_index isT@ S S S?
rindex rindex ck_index isT@ S S S?
-sprintf sprintf ck_fun_locale mfst@ S L
+sprintf sprintf ck_fun mfst@ S L
formline formline ck_fun ms@ S L
ord ord ck_fun ifsTu% S?
chr chr ck_fun fsTu% S?
crypt crypt ck_fun fsT@ S S
-ucfirst ucfirst ck_fun_locale fstu% S?
-lcfirst lcfirst ck_fun_locale fstu% S?
-uc uc ck_fun_locale fstu% S?
-lc lc ck_fun_locale fstu% S?
+ucfirst ucfirst ck_fun fstu% S?
+lcfirst lcfirst ck_fun fstu% S?
+uc uc ck_fun fstu% S?
+lc lc ck_fun fstu% S?
quotemeta quotemeta ck_fun fstu% S?
# Arrays.
leavesublv lvalue subroutine return ck_null 1
caller caller ck_fun t% S?
warn warn ck_fun imst@ L
-die die ck_fun dimst@ L
+die die ck_die dimst@ L
reset symbol reset ck_fun is% S?
lineseq line sequence ck_null @
# Control (contd.)
setstate set statement info ck_null s;
method_named method with known name ck_null d$
+
+custom unknown custom operator ck_null 0
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