X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=opcode.pl;h=6df2f8befb9eaa65b88e8c28a7d4a8c6e855a311;hb=2035c5e8eb03b194190a7ef87630a0e4cc7c6251;hp=ffdc93de5f318c82e57979360516a2e21f3a1ff5;hpb=c617a26e488e52d37c4943680f99cc9105e5f5a5;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/opcode.pl b/opcode.pl
index ffdc93d..6df2f8b 100755
--- a/opcode.pl
+++ b/opcode.pl
@@ -1,8 +1,9 @@
 #!/usr/bin/perl
 
-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.
@@ -30,10 +31,18 @@ while (<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
@@ -43,10 +52,19 @@ print <<"END";
 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
@@ -66,6 +84,12 @@ print <<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
@@ -131,7 +155,7 @@ EXT OP * (CPERLscope(*PL_ppaddr)[])(pTHX) = {
 END
 
 for (@ops) {
-    print "\tMEMBER_TO_FPTR(Perl_pp_$_),\n";
+    print "\tMEMBER_TO_FPTR(Perl_pp_$_),\n" unless $_ eq "custom";
 }
 
 print <<END;
@@ -210,7 +234,6 @@ for (@ops) {
     $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
@@ -255,10 +278,21 @@ if (keys %OP_IS_FILETEST) {
 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   !!!!!!!
@@ -288,6 +322,7 @@ print PP "\n\n";
 
 for (@ops) {
     next if /^i_(pre|post)(inc|dec)$/;
+    next if /^custom$/;
     print PP "PERL_PPDEF(Perl_pp_$_)\n";
     print PPSYM "Perl_pp_$_\n";
 }
@@ -295,6 +330,16 @@ for (@ops) {
 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) = @_;
@@ -361,7 +406,7 @@ sub tab {
 
 __END__
 
-# New ops always go at the very end
+# New ops always go at the end, just before 'custom'
 
 # A recapitulation of the format of this file:
 # The file consists of five columns: the name of the op, an English
@@ -435,8 +480,8 @@ bless		bless			ck_fun		s@	S S?
 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.
 
@@ -632,7 +677,7 @@ leavesub	subroutine exit		ck_null		1
 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		@	
@@ -878,3 +923,7 @@ threadsv	per-thread value	ck_null		ds0
 # Control (contd.)
 setstate	set statement info	ck_null		s;
 method_named	method with known name	ck_null		d$
+
+# Add new ops before this, the custom operator.
+
+custom		unknown custom operator		ck_null		0