1519 lines
37 KiB
Plaintext
1519 lines
37 KiB
Plaintext
#!./miniperl
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=head1 NAME
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xsubpp - compiler to convert Perl XS code into C code
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=head1 SYNOPSIS
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B<xsubpp> [B<-v>] [B<-C++>] [B<-except>] [B<-s pattern>] [B<-prototypes>] [B<-noversioncheck>] [B<-nolinenumbers>] [B<-typemap typemap>] [B<-object_capi>]... file.xs
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=head1 DESCRIPTION
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I<xsubpp> will compile XS code into C code by embedding the constructs
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necessary to let C functions manipulate Perl values and creates the glue
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necessary to let Perl access those functions. The compiler uses typemaps to
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determine how to map C function parameters and variables to Perl values.
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The compiler will search for typemap files called I<typemap>. It will use
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the following search path to find default typemaps, with the rightmost
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typemap taking precedence.
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../../../typemap:../../typemap:../typemap:typemap
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=head1 OPTIONS
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=over 5
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=item B<-C++>
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Adds ``extern "C"'' to the C code.
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=item B<-except>
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Adds exception handling stubs to the C code.
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=item B<-typemap typemap>
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Indicates that a user-supplied typemap should take precedence over the
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default typemaps. This option may be used multiple times, with the last
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typemap having the highest precedence.
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=item B<-v>
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Prints the I<xsubpp> version number to standard output, then exits.
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=item B<-prototypes>
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By default I<xsubpp> will not automatically generate prototype code for
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all xsubs. This flag will enable prototypes.
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=item B<-noversioncheck>
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Disables the run time test that determines if the object file (derived
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from the C<.xs> file) and the C<.pm> files have the same version
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number.
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=item B<-nolinenumbers>
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Prevents the inclusion of `#line' directives in the output.
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=item B<-object_capi>
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Compile code as C in a PERL_OBJECT environment.
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back
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=head1 ENVIRONMENT
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No environment variables are used.
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=head1 AUTHOR
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Larry Wall
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=head1 MODIFICATION HISTORY
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See the file F<changes.pod>.
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=head1 SEE ALSO
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perl(1), perlxs(1), perlxstut(1)
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=cut
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require 5.002;
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use Cwd;
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use vars '$cplusplus';
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use vars '%v';
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use Config;
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sub Q ;
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# Global Constants
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$XSUBPP_version = "1.9507";
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my ($Is_VMS, $SymSet);
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if ($^O eq 'VMS') {
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$Is_VMS = 1;
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# Establish set of global symbols with max length 28, since xsubpp
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# will later add the 'XS_' prefix.
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require ExtUtils::XSSymSet;
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$SymSet = new ExtUtils::XSSymSet 28;
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}
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$FH = 'File0000' ;
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$usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-nolinenumbers] [-s pattern] [-typemap typemap]... file.xs\n";
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$proto_re = "[" . quotemeta('\$%&*@;') . "]" ;
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# mjn
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$OBJ = 1 if $Config{'ccflags'} =~ /PERL_OBJECT/i;
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$except = "";
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$WantPrototypes = -1 ;
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$WantVersionChk = 1 ;
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$ProtoUsed = 0 ;
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$WantLineNumbers = 1 ;
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SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) {
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$flag = shift @ARGV;
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$flag =~ s/^-// ;
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$spat = quotemeta shift, next SWITCH if $flag eq 's';
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$cplusplus = 1, next SWITCH if $flag eq 'C++';
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$WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes';
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$WantPrototypes = 1, next SWITCH if $flag eq 'prototypes';
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$WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck';
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$WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck';
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$WantCAPI = 1, next SWITCH if $flag eq 'object_capi';
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$except = " TRY", next SWITCH if $flag eq 'except';
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push(@tm,shift), next SWITCH if $flag eq 'typemap';
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$WantLineNumbers = 0, next SWITCH if $flag eq 'nolinenumbers';
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$WantLineNumbers = 1, next SWITCH if $flag eq 'linenumbers';
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(print "xsubpp version $XSUBPP_version\n"), exit
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if $flag eq 'v';
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die $usage;
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}
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if ($WantPrototypes == -1)
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{ $WantPrototypes = 0}
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else
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{ $ProtoUsed = 1 }
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@ARGV == 1 or die $usage;
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($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)#
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or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)#
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or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)#
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or ($dir, $filename) = ('.', $ARGV[0]);
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chdir($dir);
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$pwd = cwd();
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++ $IncludedFiles{$ARGV[0]} ;
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my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs
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my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA");
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sub TrimWhitespace
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{
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$_[0] =~ s/^\s+|\s+$//go ;
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}
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sub TidyType
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{
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local ($_) = @_ ;
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# rationalise any '*' by joining them into bunches and removing whitespace
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s#\s*(\*+)\s*#$1#g;
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s#(\*+)# $1 #g ;
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# change multiple whitespace into a single space
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s/\s+/ /g ;
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# trim leading & trailing whitespace
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TrimWhitespace($_) ;
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$_ ;
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}
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$typemap = shift @ARGV;
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foreach $typemap (@tm) {
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die "Can't find $typemap in $pwd\n" unless -r $typemap;
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}
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unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap
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../../lib/ExtUtils/typemap ../../../typemap ../../typemap
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../typemap typemap);
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foreach $typemap (@tm) {
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next unless -e $typemap ;
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# skip directories, binary files etc.
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warn("Warning: ignoring non-text typemap file '$typemap'\n"), next
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unless -T $typemap ;
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open(TYPEMAP, $typemap)
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or warn ("Warning: could not open typemap file '$typemap': $!\n"), next;
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$mode = 'Typemap';
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$junk = "" ;
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$current = \$junk;
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while (<TYPEMAP>) {
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next if /^\s*#/;
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my $line_no = $. + 1;
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if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; }
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if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; }
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if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; }
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if ($mode eq 'Typemap') {
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chomp;
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my $line = $_ ;
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TrimWhitespace($_) ;
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# skip blank lines and comment lines
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next if /^$/ or /^#/ ;
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my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or
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warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next;
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$type = TidyType($type) ;
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$type_kind{$type} = $kind ;
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# prototype defaults to '$'
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$proto = "\$" unless $proto ;
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warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n")
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unless ValidProtoString($proto) ;
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$proto_letter{$type} = C_string($proto) ;
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}
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elsif (/^\s/) {
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$$current .= $_;
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}
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elsif ($mode eq 'Input') {
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s/\s+$//;
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$input_expr{$_} = '';
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$current = \$input_expr{$_};
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}
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else {
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s/\s+$//;
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$output_expr{$_} = '';
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$current = \$output_expr{$_};
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}
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}
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close(TYPEMAP);
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}
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foreach $key (keys %input_expr) {
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$input_expr{$key} =~ s/\n+$//;
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}
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$END = "!End!\n\n"; # "impossible" keyword (multiple newline)
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# Match an XS keyword
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$BLOCK_re= '\s*(' . join('|', qw(
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REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT
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CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE
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SCOPE INTERFACE INTERFACE_MACRO C_ARGS
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)) . "|$END)\\s*:";
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# Input: ($_, @line) == unparsed input.
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# Output: ($_, @line) == (rest of line, following lines).
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# Return: the matched keyword if found, otherwise 0
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sub check_keyword {
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$_ = shift(@line) while !/\S/ && @line;
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s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2;
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}
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if ($WantLineNumbers) {
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{
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package xsubpp::counter;
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sub TIEHANDLE {
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my ($class, $cfile) = @_;
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my $buf = "";
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$SECTION_END_MARKER = "#line --- \"$cfile\"";
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$line_no = 1;
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bless \$buf;
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}
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sub PRINT {
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my $self = shift;
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for (@_) {
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$$self .= $_;
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while ($$self =~ s/^([^\n]*\n)//) {
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my $line = $1;
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++ $line_no;
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$line =~ s|^\#line\s+---(?=\s)|#line $line_no|;
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print STDOUT $line;
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}
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}
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}
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sub PRINTF {
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my $self = shift;
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my $fmt = shift;
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$self->PRINT(sprintf($fmt, @_));
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}
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sub DESTROY {
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# Not necessary if we're careful to end with a "\n"
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my $self = shift;
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print STDOUT $$self;
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}
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}
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my $cfile = $filename;
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$cfile =~ s/\.xs$/.c/i or $cfile .= ".c";
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tie(*PSEUDO_STDOUT, 'xsubpp::counter', $cfile);
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select PSEUDO_STDOUT;
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}
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sub print_section {
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# the "do" is required for right semantics
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do { $_ = shift(@line) } while !/\S/ && @line;
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print("#line ", $line_no[@line_no - @line -1], " \"$filename\"\n")
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if $WantLineNumbers && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/;
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for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) {
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print "$_\n";
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}
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print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers;
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}
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sub merge_section {
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my $in = '';
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while (!/\S/ && @line) {
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$_ = shift(@line);
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}
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for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) {
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$in .= "$_\n";
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}
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chomp $in;
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return $in;
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}
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sub process_keyword($)
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{
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my($pattern) = @_ ;
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my $kwd ;
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&{"${kwd}_handler"}()
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while $kwd = check_keyword($pattern) ;
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}
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sub CASE_handler {
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blurt ("Error: `CASE:' after unconditional `CASE:'")
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if $condnum && $cond eq '';
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$cond = $_;
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TrimWhitespace($cond);
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print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n");
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$_ = '' ;
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}
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sub INPUT_handler {
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for (; !/^$BLOCK_re/o; $_ = shift(@line)) {
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last if /^\s*NOT_IMPLEMENTED_YET/;
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next unless /\S/; # skip blank lines
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TrimWhitespace($_) ;
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my $line = $_ ;
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# remove trailing semicolon if no initialisation
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s/\s*;$//g unless /[=;+].*\S/ ;
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# check for optional initialisation code
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my $var_init = '' ;
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$var_init = $1 if s/\s*([=;+].*)$//s ;
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$var_init =~ s/"/\\"/g;
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s/\s+/ /g;
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my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s
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or blurt("Error: invalid argument declaration '$line'"), next;
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# Check for duplicate definitions
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blurt ("Error: duplicate definition of argument '$var_name' ignored"), next
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if $arg_list{$var_name} ++ ;
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$thisdone |= $var_name eq "THIS";
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$retvaldone |= $var_name eq "RETVAL";
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$var_types{$var_name} = $var_type;
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print "\t" . &map_type($var_type);
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$var_num = $args_match{$var_name};
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$proto_arg[$var_num] = ProtoString($var_type)
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if $var_num ;
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if ($var_addr) {
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$var_addr{$var_name} = 1;
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$func_args =~ s/\b($var_name)\b/&$1/;
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}
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if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/) {
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print "\t$var_name;\n";
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} elsif ($var_init =~ /\S/) {
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&output_init($var_type, $var_num, $var_name, $var_init);
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} elsif ($var_num) {
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# generate initialization code
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&generate_init($var_type, $var_num, $var_name);
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} else {
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print ";\n";
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}
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}
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}
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sub OUTPUT_handler {
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for (; !/^$BLOCK_re/o; $_ = shift(@line)) {
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next unless /\S/;
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if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) {
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$DoSetMagic = ($1 eq "ENABLE" ? 1 : 0);
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next;
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}
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my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ;
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blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next
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if $outargs{$outarg} ++ ;
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if (!$gotRETVAL and $outarg eq 'RETVAL') {
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# deal with RETVAL last
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$RETVAL_code = $outcode ;
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$gotRETVAL = 1 ;
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next ;
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}
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blurt ("Error: OUTPUT $outarg not an argument"), next
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unless defined($args_match{$outarg});
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blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next
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unless defined $var_types{$outarg} ;
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$var_num = $args_match{$outarg};
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if ($outcode) {
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print "\t$outcode\n";
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print "\tSvSETMAGIC(ST(" , $var_num-1 , "));\n" if $DoSetMagic;
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} else {
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&generate_output($var_types{$outarg}, $var_num, $outarg, $DoSetMagic);
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}
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}
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}
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sub C_ARGS_handler() {
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my $in = merge_section();
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TrimWhitespace($in);
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$func_args = $in;
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}
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sub INTERFACE_MACRO_handler() {
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my $in = merge_section();
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TrimWhitespace($in);
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if ($in =~ /\s/) { # two
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($interface_macro, $interface_macro_set) = split ' ', $in;
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} else {
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$interface_macro = $in;
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$interface_macro_set = 'UNKNOWN_CVT'; # catch later
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}
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$interface = 1; # local
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$Interfaces = 1; # global
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}
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sub INTERFACE_handler() {
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my $in = merge_section();
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TrimWhitespace($in);
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foreach (split /[\s,]+/, $in) {
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$Interfaces{$_} = $_;
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}
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print Q<<"EOF";
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# XSFUNCTION = $interface_macro($ret_type,cv,XSANY.any_dptr);
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EOF
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$interface = 1; # local
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$Interfaces = 1; # global
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}
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sub CLEANUP_handler() { print_section() }
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sub PREINIT_handler() { print_section() }
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sub INIT_handler() { print_section() }
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sub GetAliases
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{
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my ($line) = @_ ;
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my ($orig) = $line ;
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my ($alias) ;
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my ($value) ;
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# Parse alias definitions
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# format is
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# alias = value alias = value ...
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while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) {
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$alias = $1 ;
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$orig_alias = $alias ;
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$value = $2 ;
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# check for optional package definition in the alias
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$alias = $Packprefix . $alias if $alias !~ /::/ ;
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# check for duplicate alias name & duplicate value
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Warn("Warning: Ignoring duplicate alias '$orig_alias'")
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if defined $XsubAliases{$alias} ;
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Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values")
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if $XsubAliasValues{$value} ;
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$XsubAliases = 1;
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$XsubAliases{$alias} = $value ;
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$XsubAliasValues{$value} = $orig_alias ;
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}
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blurt("Error: Cannot parse ALIAS definitions from '$orig'")
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if $line ;
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}
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sub ALIAS_handler ()
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{
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for (; !/^$BLOCK_re/o; $_ = shift(@line)) {
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next unless /\S/;
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TrimWhitespace($_) ;
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GetAliases($_) if $_ ;
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}
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}
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sub REQUIRE_handler ()
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{
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# the rest of the current line should contain a version number
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my ($Ver) = $_ ;
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TrimWhitespace($Ver) ;
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death ("Error: REQUIRE expects a version number")
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unless $Ver ;
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|
|
# check that the version number is of the form n.n
|
|
death ("Error: REQUIRE: expected a number, got '$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 $WantLineNumbers;
|
|
|
|
while (<$FH>) {
|
|
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 "";
|
|
$lastline = "";
|
|
}
|
|
|
|
for(;;) {
|
|
if ($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 $line[0] =~ /^\s/;
|
|
|
|
# initialize info arrays
|
|
undef(%args_match);
|
|
undef(%var_types);
|
|
undef(%var_addr);
|
|
undef(%defaults);
|
|
undef($class);
|
|
undef($static);
|
|
undef($elipsis);
|
|
undef($wantRETVAL) ;
|
|
undef(%arg_list) ;
|
|
undef(@proto_arg) ;
|
|
undef($proto_in_this_xsub) ;
|
|
undef($scope_in_this_xsub) ;
|
|
undef($interface);
|
|
$interface_macro = 'XSINTERFACE_FUNC' ;
|
|
$interface_macro_set = 'XSINTERFACE_FUNC_SET' ;
|
|
$ProtoThisXSUB = $WantPrototypes ;
|
|
$ScopeThisXSUB = 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($_);
|
|
|
|
# a function definition needs at least 2 lines
|
|
blurt ("Error: Function definition too short '$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*$/s;
|
|
|
|
($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 = ();
|
|
$DoSetMagic = 1;
|
|
|
|
@args = split(/\s*,\s*/, $orig_args);
|
|
if (defined($class)) {
|
|
my $arg0 = ((defined($static) or $func_name eq 'new')
|
|
? "CLASS" : "THIS");
|
|
unshift(@args, $arg0);
|
|
($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/;
|
|
}
|
|
$orig_args =~ s/"/\\"/g;
|
|
$min_args = $num_args = @args;
|
|
foreach $i (0..$num_args-1) {
|
|
if ($args[$i] =~ s/\.\.\.//) {
|
|
$elipsis = 1;
|
|
$min_args--;
|
|
if ($args[$i] eq '' && $i == $num_args - 1) {
|
|
pop(@args);
|
|
last;
|
|
}
|
|
}
|
|
if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) {
|
|
$min_args--;
|
|
$args[$i] = $1;
|
|
$defaults{$args[$i]} = $2;
|
|
$defaults{$args[$i]} =~ s/"/\\"/g;
|
|
}
|
|
$proto_arg[$i+1] = "\$" ;
|
|
}
|
|
if (defined($class)) {
|
|
$func_args = join(", ", @args[1..$#args]);
|
|
} else {
|
|
$func_args = join(", ", @args);
|
|
}
|
|
@args_match{@args} = 1..@args;
|
|
|
|
$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);
|
|
$INTERFACE = grep(/^\s*INTERFACE\s*:/, @line);
|
|
|
|
# print function header
|
|
print Q<<"EOF";
|
|
#XS(XS_${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)
|
|
# croak("Usage: %s($orig_args)", GvNAME(CvGV(cv)));
|
|
EOF
|
|
else
|
|
{ print Q<<"EOF" if $cond }
|
|
# if ($cond)
|
|
# croak("Usage: $pname($orig_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|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("$class *", 1, "THIS");
|
|
}
|
|
}
|
|
|
|
# do code
|
|
if (/^\s*NOT_IMPLEMENTED_YET/) {
|
|
print "\n\tcroak(\"$pname: not implemented yet\");\n";
|
|
$_ = '' ;
|
|
} else {
|
|
if ($ret_type ne "void") {
|
|
print "\t" . &map_type($ret_type) . "\tRETVAL;\n"
|
|
if !$retvaldone;
|
|
$args_match{"RETVAL"} = 0;
|
|
$var_types{"RETVAL"} = $ret_type;
|
|
}
|
|
|
|
print $deferred;
|
|
|
|
process_keyword("INIT|ALIAS|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;
|
|
undef $RETVAL_code ;
|
|
undef %outargs ;
|
|
process_keyword("OUTPUT|ALIAS|PROTOTYPE");
|
|
|
|
# all OUTPUT done, so now push the return value on the stack
|
|
if ($gotRETVAL && $RETVAL_code) {
|
|
print "\t$RETVAL_code\n";
|
|
} elsif ($gotRETVAL || $wantRETVAL) {
|
|
# RETVAL almost never needs SvSETMAGIC()
|
|
&generate_output($ret_type, 0, 'RETVAL', 0);
|
|
}
|
|
|
|
# do cleanup
|
|
process_keyword("CLEANUP|ALIAS|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 $except;
|
|
# if (errbuf[0])
|
|
# croak(errbuf);
|
|
EOF
|
|
|
|
if ($ret_type ne "void" or $EXPLICIT_RETURN) {
|
|
print Q<<EOF unless $PPCODE;
|
|
# XSRETURN(1);
|
|
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 ($interface) {
|
|
while ( ($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
|
|
|
|
if ($WantCAPI) {
|
|
print Q<<"EOF";
|
|
##ifdef PERL_CAPI
|
|
#XS(boot__CAPI_entry)
|
|
##else
|
|
EOF
|
|
}
|
|
|
|
print Q<<"EOF";
|
|
#XS(boot_$Module_cname)
|
|
EOF
|
|
|
|
if ($WantCAPI) {
|
|
print Q<<"EOF";
|
|
##endif /* PERL_CAPI */
|
|
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 $Interfaces ;
|
|
# }
|
|
EOF
|
|
|
|
if (@BootCode)
|
|
{
|
|
print "\n /* Initialisation Section */\n\n" ;
|
|
@line = @BootCode;
|
|
print_section();
|
|
print "\n /* End of Initialisation Section */\n\n" ;
|
|
}
|
|
|
|
print Q<<"EOF";;
|
|
# XSRETURN_YES;
|
|
#]]
|
|
#
|
|
EOF
|
|
|
|
if ($WantCAPI) {
|
|
print Q<<"EOF";
|
|
##ifdef PERL_CAPI
|
|
##define XSCAPI(name) void name(CV* cv, void* pPerl)
|
|
#
|
|
##ifdef __cplusplus
|
|
#extern "C"
|
|
##endif
|
|
#XSCAPI(boot_$Module_cname)
|
|
#[[
|
|
# boot_CAPI_handler(cv, boot__CAPI_entry, pPerl);
|
|
#]]
|
|
##endif /* PERL_CAPI */
|
|
EOF
|
|
}
|
|
|
|
warn("Please specify prototyping behavior for $filename (see perlxs manual)\n")
|
|
unless $ProtoUsed ;
|
|
&Exit;
|
|
|
|
sub output_init {
|
|
local($type, $num, $var, $init) = @_;
|
|
local($arg) = "ST(" . ($num - 1) . ")";
|
|
|
|
if( $init =~ /^=/ ) {
|
|
eval qq/print "\\t$var $init\\n"/;
|
|
warn $@ if $@;
|
|
} else {
|
|
if( $init =~ s/^\+// && $num ) {
|
|
&generate_init($type, $num, $var);
|
|
} else {
|
|
eval qq/print "\\t$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' 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' 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;
|
|
$expr =~ s/ /\t/g;
|
|
eval qq/print "\\t$var;\\n"/;
|
|
warn $@ if $@;
|
|
$deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/;
|
|
warn $@ if $@;
|
|
} elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) {
|
|
eval qq/print "\\t$var;\\n"/;
|
|
warn $@ if $@;
|
|
$deferred .= eval qq/"\\n$expr;\\n"/;
|
|
warn $@ if $@;
|
|
} else {
|
|
eval qq/print "$expr;\\n"/;
|
|
warn $@ if $@;
|
|
}
|
|
}
|
|
|
|
sub generate_output {
|
|
local($type, $num, $var, $do_setmagic) = @_;
|
|
local($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($1)), XFree((char *)$var);\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' 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' 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(0));\n";
|
|
print "\tSvSETMAGIC(ST(0));\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 $@;
|
|
# new mortals don't have set magic
|
|
}
|
|
}
|
|
elsif ($arg =~ /^ST\(\d+\)$/) {
|
|
eval "print qq\a$expr\a";
|
|
warn $@ if $@;
|
|
print "\tSvSETMAGIC($arg);\n" if $do_setmagic;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub map_type {
|
|
my($type) = @_;
|
|
|
|
$type =~ tr/:/_/;
|
|
$type =~ s/^array\(([^,]*),(.*)\).*/$1 */s;
|
|
$type;
|
|
}
|
|
|
|
|
|
sub Exit {
|
|
# If this is VMS, the exit status has meaning to the shell, so we
|
|
# use a predictable value (SS$_Normal or SS$_Abort) rather than an
|
|
# arbitrary number.
|
|
# exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ;
|
|
exit ($errors ? 1 : 0);
|
|
}
|