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Diffstat (limited to 'contrib/perl5/lib/ExtUtils/xsubpp')
| -rwxr-xr-x | contrib/perl5/lib/ExtUtils/xsubpp | 1763 |
1 files changed, 0 insertions, 1763 deletions
diff --git a/contrib/perl5/lib/ExtUtils/xsubpp b/contrib/perl5/lib/ExtUtils/xsubpp deleted file mode 100755 index bb8f3aa..0000000 --- a/contrib/perl5/lib/ExtUtils/xsubpp +++ /dev/null @@ -1,1763 +0,0 @@ -#!./miniperl - -=head1 NAME - -xsubpp - compiler to convert Perl XS code into C code - -=head1 SYNOPSIS - -B<xsubpp> [B<-v>] [B<-C++>] [B<-except>] [B<-s pattern>] [B<-prototypes>] [B<-noversioncheck>] [B<-nolinenumbers>] [B<-nooptimize>] [B<-typemap typemap>] ... file.xs - -=head1 DESCRIPTION - -This compiler is typically run by the makefiles created by L<ExtUtils::MakeMaker>. - -I<xsubpp> will compile XS code into C code by embedding the constructs -necessary to let C functions manipulate Perl values and creates the glue -necessary to let Perl access those functions. The compiler uses typemaps to -determine how to map C function parameters and variables to Perl values. - -The compiler will search for typemap files called I<typemap>. It will use -the following search path to find default typemaps, with the rightmost -typemap taking precedence. - - ../../../typemap:../../typemap:../typemap:typemap - -=head1 OPTIONS - -Note that the C<XSOPT> MakeMaker option may be used to add these options to -any makefiles generated by MakeMaker. - -=over 5 - -=item B<-C++> - -Adds ``extern "C"'' to the C code. - -=item B<-except> - -Adds exception handling stubs to the C code. - -=item B<-typemap typemap> - -Indicates that a user-supplied typemap should take precedence over the -default typemaps. This option may be used multiple times, with the last -typemap having the highest precedence. - -=item B<-v> - -Prints the I<xsubpp> version number to standard output, then exits. - -=item B<-prototypes> - -By default I<xsubpp> will not automatically generate prototype code for -all xsubs. This flag will enable prototypes. - -=item B<-noversioncheck> - -Disables the run time test that determines if the object file (derived -from the C<.xs> file) and the C<.pm> files have the same version -number. - -=item B<-nolinenumbers> - -Prevents the inclusion of `#line' directives in the output. - -=item B<-nooptimize> - -Disables certain optimizations. The only optimization that is currently -affected is the use of I<target>s by the output C code (see L<perlguts>). -This may significantly slow down the generated code, but this is the way -B<xsubpp> of 5.005 and earlier operated. - -=item B<-noinout> - -Disable recognition of C<IN>, C<OUT_LIST> and C<INOUT_LIST> declarations. - -=item B<-noargtypes> - -Disable recognition of ANSI-like descriptions of function signature. - -=back - -=head1 ENVIRONMENT - -No environment variables are used. - -=head1 AUTHOR - -Larry Wall - -=head1 MODIFICATION HISTORY - -See the file F<changes.pod>. - -=head1 SEE ALSO - -perl(1), perlxs(1), perlxstut(1) - -=cut - -require 5.002; -use Cwd; -use vars '$cplusplus'; -use vars '%v'; - -use Config; - -sub Q ; - -# Global Constants - -$XSUBPP_version = "1.9508"; - -my ($Is_VMS, $SymSet); -if ($^O eq 'VMS') { - $Is_VMS = 1; - # Establish set of global symbols with max length 28, since xsubpp - # will later add the 'XS_' prefix. - require ExtUtils::XSSymSet; - $SymSet = new ExtUtils::XSSymSet 28; -} - -$FH = 'File0000' ; - -$usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-nolinenumbers] [-nooptimize] [-noinout] [-noargtypes] [-s pattern] [-typemap typemap]... file.xs\n"; - -$proto_re = "[" . quotemeta('\$%&*@;') . "]" ; -# mjn -$OBJ = 1 if $Config{'ccflags'} =~ /PERL_OBJECT/i; - -$except = ""; -$WantPrototypes = -1 ; -$WantVersionChk = 1 ; -$ProtoUsed = 0 ; -$WantLineNumbers = 1 ; -$WantOptimize = 1 ; - -my $process_inout = 1; -my $process_argtypes = 1; - -SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { - $flag = shift @ARGV; - $flag =~ s/^-// ; - $spat = quotemeta shift, next SWITCH if $flag eq 's'; - $cplusplus = 1, next SWITCH if $flag eq 'C++'; - $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; - $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; - $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; - $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; - # XXX left this in for compat - $WantCAPI = 1, next SWITCH if $flag eq 'object_capi'; - $except = " TRY", next SWITCH if $flag eq 'except'; - push(@tm,shift), next SWITCH if $flag eq 'typemap'; - $WantLineNumbers = 0, next SWITCH if $flag eq 'nolinenumbers'; - $WantLineNumbers = 1, next SWITCH if $flag eq 'linenumbers'; - $WantOptimize = 0, next SWITCH if $flag eq 'nooptimize'; - $WantOptimize = 1, next SWITCH if $flag eq 'optimize'; - $process_inout = 0, next SWITCH if $flag eq 'noinout'; - $process_inout = 1, next SWITCH if $flag eq 'inout'; - $process_argtypes = 0, next SWITCH if $flag eq 'noargtypes'; - $process_argtypes = 1, next SWITCH if $flag eq 'argtypes'; - (print "xsubpp version $XSUBPP_version\n"), exit - if $flag eq 'v'; - die $usage; -} -if ($WantPrototypes == -1) - { $WantPrototypes = 0} -else - { $ProtoUsed = 1 } - - -@ARGV == 1 or die $usage; -($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# - or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)# - or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# - or ($dir, $filename) = ('.', $ARGV[0]); -chdir($dir); -$pwd = cwd(); - -++ $IncludedFiles{$ARGV[0]} ; - -my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs -my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); - - -sub TrimWhitespace -{ - $_[0] =~ s/^\s+|\s+$//go ; -} - -sub TidyType -{ - local ($_) = @_ ; - - # rationalise any '*' by joining them into bunches and removing whitespace - s#\s*(\*+)\s*#$1#g; - s#(\*+)# $1 #g ; - - # change multiple whitespace into a single space - s/\s+/ /g ; - - # trim leading & trailing whitespace - TrimWhitespace($_) ; - - $_ ; -} - -$typemap = shift @ARGV; -foreach $typemap (@tm) { - die "Can't find $typemap in $pwd\n" unless -r $typemap; -} -unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap - ../../lib/ExtUtils/typemap ../../../typemap ../../typemap - ../typemap typemap); -foreach $typemap (@tm) { - next unless -e $typemap ; - # skip directories, binary files etc. - warn("Warning: ignoring non-text typemap file '$typemap'\n"), next - unless -T $typemap ; - open(TYPEMAP, $typemap) - or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; - $mode = 'Typemap'; - $junk = "" ; - $current = \$junk; - while (<TYPEMAP>) { - next if /^\s*#/; - my $line_no = $. + 1; - if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } - if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } - if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } - if ($mode eq 'Typemap') { - chomp; - my $line = $_ ; - TrimWhitespace($_) ; - # skip blank lines and comment lines - next if /^$/ or /^#/ ; - my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or - warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; - $type = TidyType($type) ; - $type_kind{$type} = $kind ; - # prototype defaults to '$' - $proto = "\$" unless $proto ; - warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") - unless ValidProtoString($proto) ; - $proto_letter{$type} = C_string($proto) ; - } - elsif (/^\s/) { - $$current .= $_; - } - elsif ($mode eq 'Input') { - s/\s+$//; - $input_expr{$_} = ''; - $current = \$input_expr{$_}; - } - else { - s/\s+$//; - $output_expr{$_} = ''; - $current = \$output_expr{$_}; - } - } - close(TYPEMAP); -} - -foreach $key (keys %input_expr) { - $input_expr{$key} =~ s/\n+$//; -} - -$bal = qr[(?:(?>[^()]+)|\((??{ $bal })\))*]; # ()-balanced -$cast = qr[(?:\(\s*SV\s*\*\s*\)\s*)?]; # Optional (SV*) cast -$size = qr[,\s* (??{ $bal }) ]x; # Third arg (to setpvn) - -foreach $key (keys %output_expr) { - use re 'eval'; - - my ($t, $with_size, $arg, $sarg) = - ($output_expr{$key} =~ - m[^ \s+ sv_set ( [iunp] ) v (n)? # Type, is_setpvn - \s* \( \s* $cast \$arg \s* , - \s* ( (??{ $bal }) ) # Set from - ( (??{ $size }) )? # Possible sizeof set-from - \) \s* ; \s* $ - ]x); - $targetable{$key} = [$t, $with_size, $arg, $sarg] if $t; -} - -$END = "!End!\n\n"; # "impossible" keyword (multiple newline) - -# Match an XS keyword -$BLOCK_re= '\s*(' . join('|', qw( - REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT - CLEANUP ALIAS ATTRS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE - SCOPE INTERFACE INTERFACE_MACRO C_ARGS POSTCALL - )) . "|$END)\\s*:"; - -# Input: ($_, @line) == unparsed input. -# Output: ($_, @line) == (rest of line, following lines). -# Return: the matched keyword if found, otherwise 0 -sub check_keyword { - $_ = shift(@line) while !/\S/ && @line; - s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; -} - -my ($C_group_rex, $C_arg); -# Group in C (no support for comments or literals) -$C_group_rex = qr/ [({\[] - (?: (?> [^()\[\]{}]+ ) | (??{ $C_group_rex }) )* - [)}\]] /x ; -# Chunk in C without comma at toplevel (no comments): -$C_arg = qr/ (?: (?> [^()\[\]{},"']+ ) - | (??{ $C_group_rex }) - | " (?: (?> [^\\"]+ ) - | \\. - )* " # String literal - | ' (?: (?> [^\\']+ ) | \\. )* ' # Char literal - )* /xs; - -if ($WantLineNumbers) { - { - package xsubpp::counter; - sub TIEHANDLE { - my ($class, $cfile) = @_; - my $buf = ""; - $SECTION_END_MARKER = "#line --- \"$cfile\""; - $line_no = 1; - bless \$buf; - } - - sub PRINT { - my $self = shift; - for (@_) { - $$self .= $_; - while ($$self =~ s/^([^\n]*\n)//) { - my $line = $1; - ++ $line_no; - $line =~ s|^\#line\s+---(?=\s)|#line $line_no|; - print STDOUT $line; - } - } - } - - sub PRINTF { - my $self = shift; - my $fmt = shift; - $self->PRINT(sprintf($fmt, @_)); - } - - sub DESTROY { - # Not necessary if we're careful to end with a "\n" - my $self = shift; - print STDOUT $$self; - } - } - - my $cfile = $filename; - $cfile =~ s/\.xs$/.c/i or $cfile .= ".c"; - tie(*PSEUDO_STDOUT, 'xsubpp::counter', $cfile); - select PSEUDO_STDOUT; -} - -sub print_section { - # the "do" is required for right semantics - do { $_ = shift(@line) } while !/\S/ && @line; - - print("#line ", $line_no[@line_no - @line -1], " \"$filename\"\n") - if $WantLineNumbers && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/; - for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { - print "$_\n"; - } - print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; -} - -sub merge_section { - my $in = ''; - - while (!/\S/ && @line) { - $_ = shift(@line); - } - - for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { - $in .= "$_\n"; - } - chomp $in; - return $in; -} - -sub process_keyword($) -{ - my($pattern) = @_ ; - my $kwd ; - - &{"${kwd}_handler"}() - while $kwd = check_keyword($pattern) ; -} - -sub CASE_handler { - blurt ("Error: `CASE:' after unconditional `CASE:'") - if $condnum && $cond eq ''; - $cond = $_; - TrimWhitespace($cond); - print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); - $_ = '' ; -} - -sub INPUT_handler { - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - last if /^\s*NOT_IMPLEMENTED_YET/; - next unless /\S/; # skip blank lines - - TrimWhitespace($_) ; - my $line = $_ ; - - # remove trailing semicolon if no initialisation - s/\s*;$//g unless /[=;+].*\S/ ; - - # check for optional initialisation code - my $var_init = '' ; - $var_init = $1 if s/\s*([=;+].*)$//s ; - $var_init =~ s/"/\\"/g; - - s/\s+/ /g; - my ($var_type, $var_addr, $var_name) = /^(.*?[^&\s])\s*(\&?)\s*\b(\w+)$/s - or blurt("Error: invalid argument declaration '$line'"), next; - - # Check for duplicate definitions - blurt ("Error: duplicate definition of argument '$var_name' ignored"), next - if $arg_list{$var_name}++ - or defined $arg_types{$var_name} and not $processing_arg_with_types; - - $thisdone |= $var_name eq "THIS"; - $retvaldone |= $var_name eq "RETVAL"; - $var_types{$var_name} = $var_type; - # XXXX This check is a safeguard against the unfinished conversion of - # generate_init(). When generate_init() is fixed, - # one can use 2-args map_type() unconditionally. - if ($var_type =~ / \( \s* \* \s* \) /x) { - # Function pointers are not yet supported with &output_init! - print "\t" . &map_type($var_type, $var_name); - $name_printed = 1; - } else { - print "\t" . &map_type($var_type); - $name_printed = 0; - } - $var_num = $args_match{$var_name}; - - $proto_arg[$var_num] = ProtoString($var_type) - if $var_num ; - $func_args =~ s/\b($var_name)\b/&$1/ if $var_addr; - if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/ - or $in_out{$var_name} and $in_out{$var_name} =~ /^OUT/ - and $var_init !~ /\S/) { - if ($name_printed) { - print ";\n"; - } else { - print "\t$var_name;\n"; - } - } elsif ($var_init =~ /\S/) { - &output_init($var_type, $var_num, $var_name, $var_init, $name_printed); - } elsif ($var_num) { - # generate initialization code - &generate_init($var_type, $var_num, $var_name, $name_printed); - } else { - print ";\n"; - } - } -} - -sub OUTPUT_handler { - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - next unless /\S/; - if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) { - $DoSetMagic = ($1 eq "ENABLE" ? 1 : 0); - next; - } - my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; - blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next - if $outargs{$outarg} ++ ; - if (!$gotRETVAL and $outarg eq 'RETVAL') { - # deal with RETVAL last - $RETVAL_code = $outcode ; - $gotRETVAL = 1 ; - next ; - } - blurt ("Error: OUTPUT $outarg not an argument"), next - unless defined($args_match{$outarg}); - blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next - unless defined $var_types{$outarg} ; - $var_num = $args_match{$outarg}; - if ($outcode) { - print "\t$outcode\n"; - print "\tSvSETMAGIC(ST(" , $var_num-1 , "));\n" if $DoSetMagic; - } else { - &generate_output($var_types{$outarg}, $var_num, $outarg, $DoSetMagic); - } - delete $in_out{$outarg} # No need to auto-OUTPUT - if exists $in_out{$outarg} and $in_out{$outarg} =~ /OUT$/; - } -} - -sub C_ARGS_handler() { - my $in = merge_section(); - - TrimWhitespace($in); - $func_args = $in; -} - -sub INTERFACE_MACRO_handler() { - my $in = merge_section(); - - TrimWhitespace($in); - if ($in =~ /\s/) { # two - ($interface_macro, $interface_macro_set) = split ' ', $in; - } else { - $interface_macro = $in; - $interface_macro_set = 'UNKNOWN_CVT'; # catch later - } - $interface = 1; # local - $Interfaces = 1; # global -} - -sub INTERFACE_handler() { - my $in = merge_section(); - - TrimWhitespace($in); - - foreach (split /[\s,]+/, $in) { - $Interfaces{$_} = $_; - } - print Q<<"EOF"; -# XSFUNCTION = $interface_macro($ret_type,cv,XSANY.any_dptr); -EOF - $interface = 1; # local - $Interfaces = 1; # global -} - -sub CLEANUP_handler() { print_section() } -sub PREINIT_handler() { print_section() } -sub POSTCALL_handler() { print_section() } -sub INIT_handler() { print_section() } - -sub GetAliases -{ - my ($line) = @_ ; - my ($orig) = $line ; - my ($alias) ; - my ($value) ; - - # Parse alias definitions - # format is - # alias = value alias = value ... - - while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { - $alias = $1 ; - $orig_alias = $alias ; - $value = $2 ; - - # check for optional package definition in the alias - $alias = $Packprefix . $alias if $alias !~ /::/ ; - - # check for duplicate alias name & duplicate value - Warn("Warning: Ignoring duplicate alias '$orig_alias'") - if defined $XsubAliases{$alias} ; - - Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") - if $XsubAliasValues{$value} ; - - $XsubAliases = 1; - $XsubAliases{$alias} = $value ; - $XsubAliasValues{$value} = $orig_alias ; - } - - blurt("Error: Cannot parse ALIAS definitions from '$orig'") - if $line ; -} - -sub ATTRS_handler () -{ - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - next unless /\S/; - TrimWhitespace($_) ; - push @Attributes, $_; - } -} - -sub ALIAS_handler () -{ - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - next unless /\S/; - TrimWhitespace($_) ; - GetAliases($_) if $_ ; - } -} - -sub REQUIRE_handler () -{ - # the rest of the current line should contain a version number - my ($Ver) = $_ ; - - TrimWhitespace($Ver) ; - - death ("Error: REQUIRE expects a version number") - unless $Ver ; - - # check that the version number is of the form n.n - death ("Error: REQUIRE: expected a number, got '$Ver'") - unless $Ver =~ /^\d+(\.\d*)?/ ; - - death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") - unless $XSUBPP_version >= $Ver ; -} - -sub VERSIONCHECK_handler () -{ - # the rest of the current line should contain either ENABLE or - # DISABLE - - TrimWhitespace($_) ; - - # check for ENABLE/DISABLE - death ("Error: VERSIONCHECK: ENABLE/DISABLE") - unless /^(ENABLE|DISABLE)/i ; - - $WantVersionChk = 1 if $1 eq 'ENABLE' ; - $WantVersionChk = 0 if $1 eq 'DISABLE' ; - -} - -sub PROTOTYPE_handler () -{ - my $specified ; - - death("Error: Only 1 PROTOTYPE definition allowed per xsub") - if $proto_in_this_xsub ++ ; - - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - next unless /\S/; - $specified = 1 ; - TrimWhitespace($_) ; - if ($_ eq 'DISABLE') { - $ProtoThisXSUB = 0 - } - elsif ($_ eq 'ENABLE') { - $ProtoThisXSUB = 1 - } - else { - # remove any whitespace - s/\s+//g ; - death("Error: Invalid prototype '$_'") - unless ValidProtoString($_) ; - $ProtoThisXSUB = C_string($_) ; - } - } - - # If no prototype specified, then assume empty prototype "" - $ProtoThisXSUB = 2 unless $specified ; - - $ProtoUsed = 1 ; - -} - -sub SCOPE_handler () -{ - death("Error: Only 1 SCOPE declaration allowed per xsub") - if $scope_in_this_xsub ++ ; - - for (; !/^$BLOCK_re/o; $_ = shift(@line)) { - next unless /\S/; - TrimWhitespace($_) ; - if ($_ =~ /^DISABLE/i) { - $ScopeThisXSUB = 0 - } - elsif ($_ =~ /^ENABLE/i) { - $ScopeThisXSUB = 1 - } - } - -} - -sub PROTOTYPES_handler () -{ - # the rest of the current line should contain either ENABLE or - # DISABLE - - TrimWhitespace($_) ; - - # check for ENABLE/DISABLE - death ("Error: PROTOTYPES: ENABLE/DISABLE") - unless /^(ENABLE|DISABLE)/i ; - - $WantPrototypes = 1 if $1 eq 'ENABLE' ; - $WantPrototypes = 0 if $1 eq 'DISABLE' ; - $ProtoUsed = 1 ; - -} - -sub INCLUDE_handler () -{ - # the rest of the current line should contain a valid filename - - TrimWhitespace($_) ; - - death("INCLUDE: filename missing") - unless $_ ; - - death("INCLUDE: output pipe is illegal") - if /^\s*\|/ ; - - # simple minded recursion detector - death("INCLUDE loop detected") - if $IncludedFiles{$_} ; - - ++ $IncludedFiles{$_} unless /\|\s*$/ ; - - # Save the current file context. - push(@XSStack, { - type => 'file', - LastLine => $lastline, - LastLineNo => $lastline_no, - Line => \@line, - LineNo => \@line_no, - Filename => $filename, - Handle => $FH, - }) ; - - ++ $FH ; - - # open the new file - open ($FH, "$_") or death("Cannot open '$_': $!") ; - - print Q<<"EOF" ; -# -#/* INCLUDE: Including '$_' from '$filename' */ -# -EOF - - $filename = $_ ; - - # Prime the pump by reading the first - # non-blank line - - # skip leading blank lines - while (<$FH>) { - last unless /^\s*$/ ; - } - - $lastline = $_ ; - $lastline_no = $. ; - -} - -sub PopFile() -{ - return 0 unless $XSStack[-1]{type} eq 'file' ; - - my $data = pop @XSStack ; - my $ThisFile = $filename ; - my $isPipe = ($filename =~ /\|\s*$/) ; - - -- $IncludedFiles{$filename} - unless $isPipe ; - - close $FH ; - - $FH = $data->{Handle} ; - $filename = $data->{Filename} ; - $lastline = $data->{LastLine} ; - $lastline_no = $data->{LastLineNo} ; - @line = @{ $data->{Line} } ; - @line_no = @{ $data->{LineNo} } ; - - if ($isPipe and $? ) { - -- $lastline_no ; - print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; - exit 1 ; - } - - print Q<<"EOF" ; -# -#/* INCLUDE: Returning to '$filename' from '$ThisFile' */ -# -EOF - - return 1 ; -} - -sub ValidProtoString ($) -{ - my($string) = @_ ; - - if ( $string =~ /^$proto_re+$/ ) { - return $string ; - } - - return 0 ; -} - -sub C_string ($) -{ - my($string) = @_ ; - - $string =~ s[\\][\\\\]g ; - $string ; -} - -sub ProtoString ($) -{ - my ($type) = @_ ; - - $proto_letter{$type} or "\$" ; -} - -sub check_cpp { - my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); - if (@cpp) { - my ($cpp, $cpplevel); - for $cpp (@cpp) { - if ($cpp =~ /^\#\s*if/) { - $cpplevel++; - } elsif (!$cpplevel) { - Warn("Warning: #else/elif/endif without #if in this function"); - print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" - if $XSStack[-1]{type} eq 'if'; - return; - } elsif ($cpp =~ /^\#\s*endif/) { - $cpplevel--; - } - } - Warn("Warning: #if without #endif in this function") if $cpplevel; - } -} - - -sub Q { - my($text) = @_; - $text =~ s/^#//gm; - $text =~ s/\[\[/{/g; - $text =~ s/\]\]/}/g; - $text; -} - -open($FH, $filename) or die "cannot open $filename: $!\n"; - -# Identify the version of xsubpp used -print <<EOM ; -/* - * This file was generated automatically by xsubpp version $XSUBPP_version from the - * contents of $filename. Do not edit this file, edit $filename instead. - * - * ANY CHANGES MADE HERE WILL BE LOST! - * - */ - -EOM - - -print("#line 1 \"$filename\"\n") - if $WantLineNumbers; - -firstmodule: -while (<$FH>) { - if (/^=/) { - my $podstartline = $.; - do { - if (/^=cut\s*$/) { - print("/* Skipped embedded POD. */\n"); - printf("#line %d \"$filename\"\n", $. + 1) - if $WantLineNumbers; - next firstmodule - } - - } while (<$FH>); - # At this point $. is at end of file so die won't state the start - # of the problem, and as we haven't yet read any lines &death won't - # show the correct line in the message either. - die ("Error: Unterminated pod in $filename, line $podstartline\n") - unless $lastline; - } - last if ($Module, $Package, $Prefix) = - /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; - - if ($OBJ) { - s/#if(?:def\s|\s+defined)\s*(\(__cplusplus\)|__cplusplus)/#if defined(__cplusplus) && !defined(PERL_OBJECT)/; - } - print $_; -} -&Exit unless defined $_; - -print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; - -$lastline = $_; -$lastline_no = $.; - -# Read next xsub into @line from ($lastline, <$FH>). -sub fetch_para { - # parse paragraph - death ("Error: Unterminated `#if/#ifdef/#ifndef'") - if !defined $lastline && $XSStack[-1]{type} eq 'if'; - @line = (); - @line_no = () ; - return PopFile() if !defined $lastline; - - if ($lastline =~ - /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { - $Module = $1; - $Package = defined($2) ? $2 : ''; # keep -w happy - $Prefix = defined($3) ? $3 : ''; # keep -w happy - $Prefix = quotemeta $Prefix ; - ($Module_cname = $Module) =~ s/\W/_/g; - ($Packid = $Package) =~ tr/:/_/; - $Packprefix = $Package; - $Packprefix .= "::" if $Packprefix ne ""; - $lastline = ""; - } - - for(;;) { - # Skip embedded PODs - while ($lastline =~ /^=/) { - while ($lastline = <$FH>) { - last if ($lastline =~ /^=cut\s*$/); - } - death ("Error: Unterminated pod") unless $lastline; - $lastline = <$FH>; - chomp $lastline; - $lastline =~ s/^\s+$//; - } - if ($lastline !~ /^\s*#/ || - # CPP directives: - # ANSI: if ifdef ifndef elif else endif define undef - # line error pragma - # gcc: warning include_next - # obj-c: import - # others: ident (gcc notes that some cpps have this one) - $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { - last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; - push(@line, $lastline); - push(@line_no, $lastline_no) ; - } - - # Read next line and continuation lines - last unless defined($lastline = <$FH>); - $lastline_no = $.; - my $tmp_line; - $lastline .= $tmp_line - while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); - - chomp $lastline; - $lastline =~ s/^\s+$//; - } - pop(@line), pop(@line_no) while @line && $line[-1] eq ""; - 1; -} - -PARAGRAPH: -while (fetch_para()) { - # Print initial preprocessor statements and blank lines - while (@line && $line[0] !~ /^[^\#]/) { - my $line = shift(@line); - print $line, "\n"; - next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; - my $statement = $+; - if ($statement eq 'if') { - $XSS_work_idx = @XSStack; - push(@XSStack, {type => 'if'}); - } else { - death ("Error: `$statement' with no matching `if'") - if $XSStack[-1]{type} ne 'if'; - if ($XSStack[-1]{varname}) { - push(@InitFileCode, "#endif\n"); - push(@BootCode, "#endif"); - } - - my(@fns) = keys %{$XSStack[-1]{functions}}; - if ($statement ne 'endif') { - # Hide the functions defined in other #if branches, and reset. - @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; - @{$XSStack[-1]}{qw(varname functions)} = ('', {}); - } else { - my($tmp) = pop(@XSStack); - 0 while (--$XSS_work_idx - && $XSStack[$XSS_work_idx]{type} ne 'if'); - # Keep all new defined functions - push(@fns, keys %{$tmp->{other_functions}}); - @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; - } - } - } - - next PARAGRAPH unless @line; - - if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { - # We are inside an #if, but have not yet #defined its xsubpp variable. - print "#define $cpp_next_tmp 1\n\n"; - push(@InitFileCode, "#if $cpp_next_tmp\n"); - push(@BootCode, "#if $cpp_next_tmp"); - $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; - } - - death ("Code is not inside a function" - ." (maybe last function was ended by a blank line " - ." followed by a a statement on column one?)") - if $line[0] =~ /^\s/; - - # initialize info arrays - undef(%args_match); - undef(%var_types); - undef(%defaults); - undef($class); - undef($static); - undef($elipsis); - undef($wantRETVAL) ; - undef($RETVAL_no_return) ; - undef(%arg_list) ; - undef(@proto_arg) ; - undef(@arg_with_types) ; - undef($processing_arg_with_types) ; - undef(%arg_types) ; - undef(@outlist) ; - undef(%in_out) ; - undef($proto_in_this_xsub) ; - undef($scope_in_this_xsub) ; - undef($interface); - undef($prepush_done); - $interface_macro = 'XSINTERFACE_FUNC' ; - $interface_macro_set = 'XSINTERFACE_FUNC_SET' ; - $ProtoThisXSUB = $WantPrototypes ; - $ScopeThisXSUB = 0; - $xsreturn = 0; - - $_ = shift(@line); - while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { - &{"${kwd}_handler"}() ; - next PARAGRAPH unless @line ; - $_ = shift(@line); - } - - if (check_keyword("BOOT")) { - &check_cpp; - push (@BootCode, "#line $line_no[@line_no - @line] \"$filename\"") - if $WantLineNumbers && $line[0] !~ /^\s*#\s*line\b/; - push (@BootCode, @line, "") ; - next PARAGRAPH ; - } - - - # extract return type, function name and arguments - ($ret_type) = TidyType($_); - $RETVAL_no_return = 1 if $ret_type =~ s/^NO_OUTPUT\s+//; - - # Allow one-line ANSI-like declaration - unshift @line, $2 - if $process_argtypes - and $ret_type =~ s/^(.*?\w.*?)\s*\b(\w+\s*\(.*)/$1/s; - - # a function definition needs at least 2 lines - blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH - unless @line ; - - $static = 1 if $ret_type =~ s/^static\s+//; - - $func_header = shift(@line); - blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH - unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*(const)?\s*(;\s*)?$/s; - - ($class, $func_name, $orig_args) = ($1, $2, $3) ; - $class = "$4 $class" if $4; - ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; - ($clean_func_name = $func_name) =~ s/^$Prefix//; - $Full_func_name = "${Packid}_$clean_func_name"; - if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } - - # Check for duplicate function definition - for $tmp (@XSStack) { - next unless defined $tmp->{functions}{$Full_func_name}; - Warn("Warning: duplicate function definition '$clean_func_name' detected"); - last; - } - $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; - %XsubAliases = %XsubAliasValues = %Interfaces = @Attributes = (); - $DoSetMagic = 1; - - $orig_args =~ s/\\\s*/ /g; # process line continuations - - my %only_outlist; - if ($process_argtypes and $orig_args =~ /\S/) { - my $args = "$orig_args ,"; - if ($args =~ /^( (??{ $C_arg }) , )* $ /x) { - @args = ($args =~ /\G ( (??{ $C_arg }) ) , /xg); - for ( @args ) { - s/^\s+//; - s/\s+$//; - my $arg = $_; - my $default; - ($arg, $default) = / ( [^=]* ) ( (?: = .* )? ) /x; - my ($pre, $name) = ($arg =~ /(.*?) \s* \b(\w+) \s* $ /x); - next unless length $pre; - my $out_type; - my $inout_var; - if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//) { - my $type = $1; - $out_type = $type if $type ne 'IN'; - $arg =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//; - } - if (/\W/) { # Has a type - push @arg_with_types, $arg; - # warn "pushing '$arg'\n"; - $arg_types{$name} = $arg; - $_ = "$name$default"; - } - $only_outlist{$_} = 1 if $out_type eq "OUTLIST"; - push @outlist, $name if $out_type =~ /OUTLIST$/; - $in_out{$name} = $out_type if $out_type; - } - } else { - @args = split(/\s*,\s*/, $orig_args); - Warn("Warning: cannot parse argument list '$orig_args', fallback to split"); - } - } else { - @args = split(/\s*,\s*/, $orig_args); - for (@args) { - if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|IN_OUT|OUT)\s+//) { - my $out_type = $1; - next if $out_type eq 'IN'; - $only_outlist{$_} = 1 if $out_type eq "OUTLIST"; - push @outlist, $name if $out_type =~ /OUTLIST$/; - $in_out{$_} = $out_type; - } - } - } - if (defined($class)) { - my $arg0 = ((defined($static) or $func_name eq 'new') - ? "CLASS" : "THIS"); - unshift(@args, $arg0); - ($report_args = "$arg0, $report_args") =~ s/^\w+, $/$arg0/; - } - my $extra_args = 0; - @args_num = (); - $num_args = 0; - my $report_args = ''; - foreach $i (0 .. $#args) { - if ($args[$i] =~ s/\.\.\.//) { - $elipsis = 1; - if ($args[$i] eq '' && $i == $#args) { - $report_args .= ", ..."; - pop(@args); - last; - } - } - if ($only_outlist{$args[$i]}) { - push @args_num, undef; - } else { - push @args_num, ++$num_args; - $report_args .= ", $args[$i]"; - } - if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { - $extra_args++; - $args[$i] = $1; - $defaults{$args[$i]} = $2; - $defaults{$args[$i]} =~ s/"/\\"/g; - } - $proto_arg[$i+1] = "\$" ; - } - $min_args = $num_args - $extra_args; - $report_args =~ s/"/\\"/g; - $report_args =~ s/^,\s+//; - my @func_args = @args; - shift @func_args if defined($class); - - for (@func_args) { - s/^/&/ if $in_out{$_}; - } - $func_args = join(", ", @func_args); - @args_match{@args} = @args_num; - - $PPCODE = grep(/^\s*PPCODE\s*:/, @line); - $CODE = grep(/^\s*CODE\s*:/, @line); - # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) - # to set explicit return values. - $EXPLICIT_RETURN = ($CODE && - ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); - $ALIAS = grep(/^\s*ALIAS\s*:/, @line); - $INTERFACE = grep(/^\s*INTERFACE\s*:/, @line); - - $xsreturn = 1 if $EXPLICIT_RETURN; - - # print function header - print Q<<"EOF"; -#XS(XS_${Full_func_name}) -#[[ -# dXSARGS; -EOF - print Q<<"EOF" if $ALIAS ; -# dXSI32; -EOF - print Q<<"EOF" if $INTERFACE ; -# dXSFUNCTION($ret_type); -EOF - if ($elipsis) { - $cond = ($min_args ? qq(items < $min_args) : 0); - } - elsif ($min_args == $num_args) { - $cond = qq(items != $min_args); - } - else { - $cond = qq(items < $min_args || items > $num_args); - } - - print Q<<"EOF" if $except; -# char errbuf[1024]; -# *errbuf = '\0'; -EOF - - if ($ALIAS) - { print Q<<"EOF" if $cond } -# if ($cond) -# Perl_croak(aTHX_ "Usage: %s($report_args)", GvNAME(CvGV(cv))); -EOF - else - { print Q<<"EOF" if $cond } -# if ($cond) -# Perl_croak(aTHX_ "Usage: $pname($report_args)"); -EOF - - print Q<<"EOF" if $PPCODE; -# SP -= items; -EOF - - # Now do a block of some sort. - - $condnum = 0; - $cond = ''; # last CASE: condidional - push(@line, "$END:"); - push(@line_no, $line_no[-1]); - $_ = ''; - &check_cpp; - while (@line) { - &CASE_handler if check_keyword("CASE"); - print Q<<"EOF"; -# $except [[ -EOF - - # do initialization of input variables - $thisdone = 0; - $retvaldone = 0; - $deferred = ""; - %arg_list = () ; - $gotRETVAL = 0; - - INPUT_handler() ; - process_keyword("INPUT|PREINIT|INTERFACE_MACRO|C_ARGS|ALIAS|ATTRS|PROTOTYPE|SCOPE") ; - - print Q<<"EOF" if $ScopeThisXSUB; -# ENTER; -# [[ -EOF - - if (!$thisdone && defined($class)) { - if (defined($static) or $func_name eq 'new') { - print "\tchar *"; - $var_types{"CLASS"} = "char *"; - &generate_init("char *", 1, "CLASS"); - } - else { - print "\t$class *"; - $var_types{"THIS"} = "$class *"; - &generate_init("$class *", 1, "THIS"); - } - } - - # do code - if (/^\s*NOT_IMPLEMENTED_YET/) { - print "\n\tPerl_croak(aTHX_ \"$pname: not implemented yet\");\n"; - $_ = '' ; - } else { - if ($ret_type ne "void") { - print "\t" . &map_type($ret_type, 'RETVAL') . ";\n" - if !$retvaldone; - $args_match{"RETVAL"} = 0; - $var_types{"RETVAL"} = $ret_type; - print "\tdXSTARG;\n" - if $WantOptimize and $targetable{$type_kind{$ret_type}}; - } - - if (@arg_with_types) { - unshift @line, @arg_with_types, $_; - $_ = ""; - $processing_arg_with_types = 1; - INPUT_handler() ; - } - print $deferred; - - process_keyword("INIT|ALIAS|ATTRS|PROTOTYPE|INTERFACE_MACRO|INTERFACE|C_ARGS") ; - - if (check_keyword("PPCODE")) { - print_section(); - death ("PPCODE must be last thing") if @line; - print "\tLEAVE;\n" if $ScopeThisXSUB; - print "\tPUTBACK;\n\treturn;\n"; - } elsif (check_keyword("CODE")) { - print_section() ; - } elsif (defined($class) and $func_name eq "DESTROY") { - print "\n\t"; - print "delete THIS;\n"; - } else { - print "\n\t"; - if ($ret_type ne "void") { - print "RETVAL = "; - $wantRETVAL = 1; - } - if (defined($static)) { - if ($func_name eq 'new') { - $func_name = "$class"; - } else { - print "${class}::"; - } - } elsif (defined($class)) { - if ($func_name eq 'new') { - $func_name .= " $class"; - } else { - print "THIS->"; - } - } - $func_name =~ s/^($spat)// - if defined($spat); - $func_name = 'XSFUNCTION' if $interface; - print "$func_name($func_args);\n"; - } - } - - # do output variables - $gotRETVAL = 0; # 1 if RETVAL seen in OUTPUT section; - undef $RETVAL_code ; # code to set RETVAL (from OUTPUT section); - # $wantRETVAL set if 'RETVAL =' autogenerated - ($wantRETVAL, $ret_type) = (0, 'void') if $RETVAL_no_return; - undef %outargs ; - process_keyword("POSTCALL|OUTPUT|ALIAS|ATTRS|PROTOTYPE"); - - &generate_output($var_types{$_}, $args_match{$_}, $_, $DoSetMagic) - for grep $in_out{$_} =~ /OUT$/, keys %in_out; - - # all OUTPUT done, so now push the return value on the stack - if ($gotRETVAL && $RETVAL_code) { - print "\t$RETVAL_code\n"; - } elsif ($gotRETVAL || $wantRETVAL) { - my $t = $WantOptimize && $targetable{$type_kind{$ret_type}}; - my $var = 'RETVAL'; - my $type = $ret_type; - - # 0: type, 1: with_size, 2: how, 3: how_size - if ($t and not $t->[1] and $t->[0] eq 'p') { - # PUSHp corresponds to setpvn. Treate setpv directly - my $what = eval qq("$t->[2]"); - warn $@ if $@; - - print "\tsv_setpv(TARG, $what); XSprePUSH; PUSHTARG;\n"; - $prepush_done = 1; - } - elsif ($t) { - my $what = eval qq("$t->[2]"); - warn $@ if $@; - - my $size = $t->[3]; - $size = '' unless defined $size; - $size = eval qq("$size"); - warn $@ if $@; - print "\tXSprePUSH; PUSH$t->[0]($what$size);\n"; - $prepush_done = 1; - } - else { - # RETVAL almost never needs SvSETMAGIC() - &generate_output($ret_type, 0, 'RETVAL', 0); - } - } - - $xsreturn = 1 if $ret_type ne "void"; - my $num = $xsreturn; - my $c = @outlist; - print "\tXSprePUSH;" if $c and not $prepush_done; - print "\tEXTEND(SP,$c);\n" if $c; - $xsreturn += $c; - generate_output($var_types{$_}, $num++, $_, 0, 1) for @outlist; - - # do cleanup - process_keyword("CLEANUP|ALIAS|ATTRS|PROTOTYPE") ; - - print Q<<"EOF" if $ScopeThisXSUB; -# ]] -EOF - print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; -# LEAVE; -EOF - - # print function trailer - print Q<<EOF; -# ]] -EOF - print Q<<EOF if $except; -# BEGHANDLERS -# CATCHALL -# sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); -# ENDHANDLERS -EOF - if (check_keyword("CASE")) { - blurt ("Error: No `CASE:' at top of function") - unless $condnum; - $_ = "CASE: $_"; # Restore CASE: label - next; - } - last if $_ eq "$END:"; - death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); - } - - print Q<<EOF if $except; -# if (errbuf[0]) -# Perl_croak(aTHX_ errbuf); -EOF - - if ($xsreturn) { - print Q<<EOF unless $PPCODE; -# XSRETURN($xsreturn); -EOF - } else { - print Q<<EOF unless $PPCODE; -# XSRETURN_EMPTY; -EOF - } - - print Q<<EOF; -#]] -# -EOF - - my $newXS = "newXS" ; - my $proto = "" ; - - # Build the prototype string for the xsub - if ($ProtoThisXSUB) { - $newXS = "newXSproto"; - - if ($ProtoThisXSUB eq 2) { - # User has specified empty prototype - $proto = ', ""' ; - } - elsif ($ProtoThisXSUB ne 1) { - # User has specified a prototype - $proto = ', "' . $ProtoThisXSUB . '"'; - } - else { - my $s = ';'; - if ($min_args < $num_args) { - $s = ''; - $proto_arg[$min_args] .= ";" ; - } - push @proto_arg, "$s\@" - if $elipsis ; - - $proto = ', "' . join ("", @proto_arg) . '"'; - } - } - - if (%XsubAliases) { - $XsubAliases{$pname} = 0 - unless defined $XsubAliases{$pname} ; - while ( ($name, $value) = each %XsubAliases) { - push(@InitFileCode, Q<<"EOF"); -# cv = newXS(\"$name\", XS_$Full_func_name, file); -# XSANY.any_i32 = $value ; -EOF - push(@InitFileCode, Q<<"EOF") if $proto; -# sv_setpv((SV*)cv$proto) ; -EOF - } - } - elsif (@Attributes) { - push(@InitFileCode, Q<<"EOF"); -# cv = newXS(\"$pname\", XS_$Full_func_name, file); -# apply_attrs_string("$Package", cv, "@Attributes", 0); -EOF - } - elsif ($interface) { - while ( ($name, $value) = each %Interfaces) { - $name = "$Package\::$name" unless $name =~ /::/; - push(@InitFileCode, Q<<"EOF"); -# cv = newXS(\"$name\", XS_$Full_func_name, file); -# $interface_macro_set(cv,$value) ; -EOF - push(@InitFileCode, Q<<"EOF") if $proto; -# sv_setpv((SV*)cv$proto) ; -EOF - } - } - else { - push(@InitFileCode, - " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); - } -} - -# print initialization routine - -print Q<<"EOF"; -##ifdef __cplusplus -#extern "C" -##endif -EOF - -print Q<<"EOF"; -#XS(boot_$Module_cname) -EOF - -print Q<<"EOF"; -#[[ -# dXSARGS; -# char* file = __FILE__; -# -EOF - -print Q<<"EOF" if $WantVersionChk ; -# XS_VERSION_BOOTCHECK ; -# -EOF - -print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; -# { -# CV * cv ; -# -EOF - -print @InitFileCode; - -print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; -# } -EOF - -if (@BootCode) -{ - print "\n /* Initialisation Section */\n\n" ; - @line = @BootCode; - print_section(); - print "\n /* End of Initialisation Section */\n\n" ; -} - -print Q<<"EOF";; -# XSRETURN_YES; -#]] -# -EOF - -warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") - unless $ProtoUsed ; -&Exit; - -sub output_init { - local($type, $num, $var, $init, $name_printed) = @_; - local($arg) = "ST(" . ($num - 1) . ")"; - - if( $init =~ /^=/ ) { - if ($name_printed) { - eval qq/print " $init\\n"/; - } else { - eval qq/print "\\t$var $init\\n"/; - } - warn $@ if $@; - } else { - if( $init =~ s/^\+// && $num ) { - &generate_init($type, $num, $var, $name_printed); - } elsif ($name_printed) { - print ";\n"; - $init =~ s/^;//; - } else { - eval qq/print "\\t$var;\\n"/; - warn $@ if $@; - $init =~ s/^;//; - } - $deferred .= eval qq/"\\n\\t$init\\n"/; - warn $@ if $@; - } -} - -sub Warn -{ - # work out the line number - my $line_no = $line_no[@line_no - @line -1] ; - - print STDERR "@_ in $filename, line $line_no\n" ; -} - -sub blurt -{ - Warn @_ ; - $errors ++ -} - -sub death -{ - Warn @_ ; - exit 1 ; -} - -sub generate_init { - local($type, $num, $var) = @_; - local($arg) = "ST(" . ($num - 1) . ")"; - local($argoff) = $num - 1; - local($ntype); - local($tk); - - $type = TidyType($type) ; - blurt("Error: '$type' not in typemap"), return - unless defined($type_kind{$type}); - - ($ntype = $type) =~ s/\s*\*/Ptr/g; - ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; - $tk = $type_kind{$type}; - $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; - $type =~ tr/:/_/; - blurt("Error: No INPUT definition for type '$type', typekind '$type_kind{$type}' found"), return - unless defined $input_expr{$tk} ; - $expr = $input_expr{$tk}; - if ($expr =~ /DO_ARRAY_ELEM/) { - blurt("Error: '$subtype' not in typemap"), return - unless defined($type_kind{$subtype}); - blurt("Error: No INPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return - unless defined $input_expr{$type_kind{$subtype}} ; - $subexpr = $input_expr{$type_kind{$subtype}}; - $subexpr =~ s/ntype/subtype/g; - $subexpr =~ s/\$arg/ST(ix_$var)/g; - $subexpr =~ s/\n\t/\n\t\t/g; - $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; - $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; - $expr =~ s/DO_ARRAY_ELEM/$subexpr/; - } - if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments - $ScopeThisXSUB = 1; - } - if (defined($defaults{$var})) { - $expr =~ s/(\t+)/$1 /g; - $expr =~ s/ /\t/g; - if ($name_printed) { - print ";\n"; - } else { - eval qq/print "\\t$var;\\n"/; - warn $@ if $@; - } - if ($defaults{$var} eq 'NO_INIT') { - $deferred .= eval qq/"\\n\\tif (items >= $num) {\\n$expr;\\n\\t}\\n"/; - } else { - $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; - } - warn $@ if $@; - } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { - if ($name_printed) { - print ";\n"; - } else { - eval qq/print "\\t$var;\\n"/; - warn $@ if $@; - } - $deferred .= eval qq/"\\n$expr;\\n"/; - warn $@ if $@; - } else { - die "panic: do not know how to handle this branch for function pointers" - if $name_printed; - eval qq/print "$expr;\\n"/; - warn $@ if $@; - } -} - -sub generate_output { - local($type, $num, $var, $do_setmagic, $do_push) = @_; - local($arg) = "ST(" . ($num - ($num != 0)) . ")"; - local($argoff) = $num - 1; - local($ntype); - - $type = TidyType($type) ; - if ($type =~ /^array\(([^,]*),(.*)\)/) { - print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1));\n"; - print "\tSvSETMAGIC($arg);\n" if $do_setmagic; - } else { - blurt("Error: '$type' not in typemap"), return - unless defined($type_kind{$type}); - blurt("Error: No OUTPUT definition for type '$type', typekind '$type_kind{$type}' found"), return - unless defined $output_expr{$type_kind{$type}} ; - ($ntype = $type) =~ s/\s*\*/Ptr/g; - $ntype =~ s/\(\)//g; - ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; - $expr = $output_expr{$type_kind{$type}}; - if ($expr =~ /DO_ARRAY_ELEM/) { - blurt("Error: '$subtype' not in typemap"), return - unless defined($type_kind{$subtype}); - blurt("Error: No OUTPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return - unless defined $output_expr{$type_kind{$subtype}} ; - $subexpr = $output_expr{$type_kind{$subtype}}; - $subexpr =~ s/ntype/subtype/g; - $subexpr =~ s/\$arg/ST(ix_$var)/g; - $subexpr =~ s/\$var/${var}[ix_$var]/g; - $subexpr =~ s/\n\t/\n\t\t/g; - $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; - eval "print qq\a$expr\a"; - warn $@ if $@; - print "\t\tSvSETMAGIC(ST(ix_$var));\n" if $do_setmagic; - } - elsif ($var eq 'RETVAL') { - if ($expr =~ /^\t\$arg = new/) { - # We expect that $arg has refcnt 1, so we need to - # mortalize it. - eval "print qq\a$expr\a"; - warn $@ if $@; - print "\tsv_2mortal(ST($num));\n"; - print "\tSvSETMAGIC(ST($num));\n" if $do_setmagic; - } - elsif ($expr =~ /^\s*\$arg\s*=/) { - # We expect that $arg has refcnt >=1, so we need - # to mortalize it! - eval "print qq\a$expr\a"; - warn $@ if $@; - print "\tsv_2mortal(ST(0));\n"; - print "\tSvSETMAGIC(ST(0));\n" if $do_setmagic; - } - else { - # Just hope that the entry would safely write it - # over an already mortalized value. By - # coincidence, something like $arg = &sv_undef - # works too. - print "\tST(0) = sv_newmortal();\n"; - eval "print qq\a$expr\a"; - warn $@ if $@; - # new mortals don't have set magic - } - } - elsif ($do_push) { - print "\tPUSHs(sv_newmortal());\n"; - $arg = "ST($num)"; - eval "print qq\a$expr\a"; - warn $@ if $@; - print "\tSvSETMAGIC($arg);\n" if $do_setmagic; - } - elsif ($arg =~ /^ST\(\d+\)$/) { - eval "print qq\a$expr\a"; - warn $@ if $@; - print "\tSvSETMAGIC($arg);\n" if $do_setmagic; - } - } -} - -sub map_type { - my($type, $varname) = @_; - - $type =~ tr/:/_/; - $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; - if ($varname) { - if ($varname && $type =~ / \( \s* \* (?= \s* \) ) /xg) { - (substr $type, pos $type, 0) = " $varname "; - } else { - $type .= "\t$varname"; - } - } - $type; -} - - -sub Exit { -# If this is VMS, the exit status has meaning to the shell, so we -# use a predictable value (SS$_Normal or SS$_Abort) rather than an -# arbitrary number. -# exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; - exit ($errors ? 1 : 0); -} |
