2152 lines
65 KiB
Perl
2152 lines
65 KiB
Perl
package ExtUtils::ParseXS;
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use strict;
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use 5.006001;
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use Cwd;
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use Config;
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use Exporter 'import';
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use File::Basename;
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use File::Spec;
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use Symbol;
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our $VERSION;
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BEGIN {
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$VERSION = '3.39';
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require ExtUtils::ParseXS::Constants; ExtUtils::ParseXS::Constants->VERSION($VERSION);
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require ExtUtils::ParseXS::CountLines; ExtUtils::ParseXS::CountLines->VERSION($VERSION);
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require ExtUtils::ParseXS::Utilities; ExtUtils::ParseXS::Utilities->VERSION($VERSION);
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require ExtUtils::ParseXS::Eval; ExtUtils::ParseXS::Eval->VERSION($VERSION);
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}
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$VERSION = eval $VERSION if $VERSION =~ /_/;
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use ExtUtils::ParseXS::Utilities qw(
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standard_typemap_locations
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trim_whitespace
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C_string
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valid_proto_string
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process_typemaps
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map_type
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standard_XS_defs
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assign_func_args
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analyze_preprocessor_statements
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set_cond
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Warn
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current_line_number
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blurt
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death
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check_conditional_preprocessor_statements
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escape_file_for_line_directive
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report_typemap_failure
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);
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our @EXPORT_OK = qw(
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process_file
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report_error_count
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);
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##############################
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# A number of "constants"
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our ($C_group_rex, $C_arg);
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# Group in C (no support for comments or literals)
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$C_group_rex = qr/ [({\[]
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(?: (?> [^()\[\]{}]+ ) | (??{ $C_group_rex }) )*
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[)}\]] /x;
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# Chunk in C without comma at toplevel (no comments):
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$C_arg = qr/ (?: (?> [^()\[\]{},"']+ )
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| (??{ $C_group_rex })
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| " (?: (?> [^\\"]+ )
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| \\.
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)* " # String literal
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| ' (?: (?> [^\\']+ ) | \\. )* ' # Char literal
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)* /xs;
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# "impossible" keyword (multiple newline)
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my $END = "!End!\n\n";
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# Match an XS Keyword
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my $BLOCK_regexp = '\s*(' . $ExtUtils::ParseXS::Constants::XSKeywordsAlternation . "|$END)\\s*:";
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sub new {
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return bless {} => shift;
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}
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our $Singleton = __PACKAGE__->new;
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sub process_file {
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my $self;
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# Allow for $package->process_file(%hash), $obj->process_file, and process_file()
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if (@_ % 2) {
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my $invocant = shift;
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$self = ref($invocant) ? $invocant : $invocant->new;
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}
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else {
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$self = $Singleton;
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}
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my %options = @_;
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$self->{ProtoUsed} = exists $options{prototypes};
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# Set defaults.
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my %args = (
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argtypes => 1,
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csuffix => '.c',
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except => 0,
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hiertype => 0,
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inout => 1,
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linenumbers => 1,
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optimize => 1,
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output => \*STDOUT,
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prototypes => 0,
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typemap => [],
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versioncheck => 1,
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FH => Symbol::gensym(),
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%options,
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);
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$args{except} = $args{except} ? ' TRY' : '';
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# Global Constants
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my ($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 = ExtUtils::XSSymSet->new(28);
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}
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@{ $self->{XSStack} } = ({type => 'none'});
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$self->{InitFileCode} = [ @ExtUtils::ParseXS::Constants::InitFileCode ];
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$self->{Overload} = 0; # bool
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$self->{errors} = 0; # count
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$self->{Fallback} = '&PL_sv_undef';
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# Most of the 1500 lines below uses these globals. We'll have to
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# clean this up sometime, probably. For now, we just pull them out
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# of %args. -Ken
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$self->{RetainCplusplusHierarchicalTypes} = $args{hiertype};
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$self->{WantPrototypes} = $args{prototypes};
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$self->{WantVersionChk} = $args{versioncheck};
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$self->{WantLineNumbers} = $args{linenumbers};
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$self->{IncludedFiles} = {};
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die "Missing required parameter 'filename'" unless $args{filename};
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$self->{filepathname} = $args{filename};
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($self->{dir}, $self->{filename}) =
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(dirname($args{filename}), basename($args{filename}));
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$self->{filepathname} =~ s/\\/\\\\/g;
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$self->{IncludedFiles}->{$args{filename}}++;
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# Open the output file if given as a string. If they provide some
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# other kind of reference, trust them that we can print to it.
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if (not ref $args{output}) {
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open my($fh), "> $args{output}" or die "Can't create $args{output}: $!";
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$args{outfile} = $args{output};
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$args{output} = $fh;
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}
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# Really, we shouldn't have to chdir() or select() in the first
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# place. For now, just save and restore.
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my $orig_cwd = cwd();
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my $orig_fh = select();
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chdir($self->{dir});
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my $pwd = cwd();
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my $csuffix = $args{csuffix};
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if ($self->{WantLineNumbers}) {
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my $cfile;
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if ( $args{outfile} ) {
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$cfile = $args{outfile};
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}
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else {
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$cfile = $args{filename};
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$cfile =~ s/\.xs$/$csuffix/i or $cfile .= $csuffix;
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}
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tie(*PSEUDO_STDOUT, 'ExtUtils::ParseXS::CountLines', $cfile, $args{output});
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select PSEUDO_STDOUT;
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}
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else {
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select $args{output};
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}
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$self->{typemap} = process_typemaps( $args{typemap}, $pwd );
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# Move more settings from parameters to object
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foreach my $datum ( qw| argtypes except inout optimize | ) {
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$self->{$datum} = $args{$datum};
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}
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$self->{strip_c_func_prefix} = $args{s};
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# Identify the version of xsubpp used
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print <<EOM;
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/*
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* This file was generated automatically by ExtUtils::ParseXS version $VERSION from the
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* contents of $self->{filename}. Do not edit this file, edit $self->{filename} instead.
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*
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* ANY CHANGES MADE HERE WILL BE LOST!
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*
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*/
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EOM
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print("#line 1 \"" . escape_file_for_line_directive($self->{filepathname}) . "\"\n")
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if $self->{WantLineNumbers};
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# Open the input file (using $self->{filename} which
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# is a basename'd $args{filename} due to chdir above)
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open($self->{FH}, '<', $self->{filename}) or die "cannot open $self->{filename}: $!\n";
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FIRSTMODULE:
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while (readline($self->{FH})) {
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if (/^=/) {
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my $podstartline = $.;
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do {
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if (/^=cut\s*$/) {
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# We can't just write out a /* */ comment, as our embedded
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# POD might itself be in a comment. We can't put a /**/
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# comment inside #if 0, as the C standard says that the source
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# file is decomposed into preprocessing characters in the stage
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# before preprocessing commands are executed.
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# I don't want to leave the text as barewords, because the spec
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# isn't clear whether macros are expanded before or after
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# preprocessing commands are executed, and someone pathological
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# may just have defined one of the 3 words as a macro that does
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# something strange. Multiline strings are illegal in C, so
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# the "" we write must be a string literal. And they aren't
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# concatenated until 2 steps later, so we are safe.
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# - Nicholas Clark
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print("#if 0\n \"Skipped embedded POD.\"\n#endif\n");
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printf("#line %d \"%s\"\n", $. + 1, escape_file_for_line_directive($self->{filepathname}))
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if $self->{WantLineNumbers};
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next FIRSTMODULE;
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}
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} while (readline($self->{FH}));
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# At this point $. is at end of file so die won't state the start
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# of the problem, and as we haven't yet read any lines &death won't
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# show the correct line in the message either.
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die ("Error: Unterminated pod in $self->{filename}, line $podstartline\n")
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unless $self->{lastline};
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}
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last if ($self->{Package}, $self->{Prefix}) =
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/^MODULE\s*=\s*[\w:]+(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/;
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print $_;
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}
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unless (defined $_) {
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warn "Didn't find a 'MODULE ... PACKAGE ... PREFIX' line\n";
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exit 0; # Not a fatal error for the caller process
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}
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print 'ExtUtils::ParseXS::CountLines'->end_marker, "\n" if $self->{WantLineNumbers};
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standard_XS_defs();
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print 'ExtUtils::ParseXS::CountLines'->end_marker, "\n" if $self->{WantLineNumbers};
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$self->{lastline} = $_;
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$self->{lastline_no} = $.;
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my $BootCode_ref = [];
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my $XSS_work_idx = 0;
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my $cpp_next_tmp = 'XSubPPtmpAAAA';
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PARAGRAPH:
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while ($self->fetch_para()) {
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my $outlist_ref = [];
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# Print initial preprocessor statements and blank lines
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while (@{ $self->{line} } && $self->{line}->[0] !~ /^[^\#]/) {
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my $ln = shift(@{ $self->{line} });
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print $ln, "\n";
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next unless $ln =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/;
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my $statement = $+;
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( $self, $XSS_work_idx, $BootCode_ref ) =
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analyze_preprocessor_statements(
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$self, $statement, $XSS_work_idx, $BootCode_ref
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);
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}
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next PARAGRAPH unless @{ $self->{line} };
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if ($XSS_work_idx && !$self->{XSStack}->[$XSS_work_idx]{varname}) {
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# We are inside an #if, but have not yet #defined its xsubpp variable.
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print "#define $cpp_next_tmp 1\n\n";
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push(@{ $self->{InitFileCode} }, "#if $cpp_next_tmp\n");
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push(@{ $BootCode_ref }, "#if $cpp_next_tmp");
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$self->{XSStack}->[$XSS_work_idx]{varname} = $cpp_next_tmp++;
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}
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$self->death(
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"Code is not inside a function"
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." (maybe last function was ended by a blank line "
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." followed by a statement on column one?)")
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if $self->{line}->[0] =~ /^\s/;
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# initialize info arrays
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foreach my $member (qw(args_match var_types defaults arg_list
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argtype_seen in_out lengthof))
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{
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$self->{$member} = {};
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}
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$self->{proto_arg} = [];
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$self->{processing_arg_with_types} = 0; # bool
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$self->{proto_in_this_xsub} = 0; # counter & bool
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$self->{scope_in_this_xsub} = 0; # counter & bool
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$self->{interface} = 0; # bool
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$self->{interface_macro} = 'XSINTERFACE_FUNC';
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$self->{interface_macro_set} = 'XSINTERFACE_FUNC_SET';
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$self->{ProtoThisXSUB} = $self->{WantPrototypes}; # states 0 (none), 1 (yes), 2 (empty prototype)
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$self->{ScopeThisXSUB} = 0; # bool
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my $xsreturn = 0;
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$_ = shift(@{ $self->{line} });
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while (my $kwd = $self->check_keyword("REQUIRE|PROTOTYPES|EXPORT_XSUB_SYMBOLS|FALLBACK|VERSIONCHECK|INCLUDE(?:_COMMAND)?|SCOPE")) {
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my $method = $kwd . "_handler";
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$self->$method($_);
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next PARAGRAPH unless @{ $self->{line} };
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$_ = shift(@{ $self->{line} });
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}
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if ($self->check_keyword("BOOT")) {
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check_conditional_preprocessor_statements($self);
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push (@{ $BootCode_ref }, "#line $self->{line_no}->[@{ $self->{line_no} } - @{ $self->{line} }] \""
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. escape_file_for_line_directive($self->{filepathname}) . "\"")
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if $self->{WantLineNumbers} && $self->{line}->[0] !~ /^\s*#\s*line\b/;
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push (@{ $BootCode_ref }, @{ $self->{line} }, "");
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next PARAGRAPH;
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}
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# extract return type, function name and arguments
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($self->{ret_type}) = ExtUtils::Typemaps::tidy_type($_);
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my $RETVAL_no_return = 1 if $self->{ret_type} =~ s/^NO_OUTPUT\s+//;
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# Allow one-line ANSI-like declaration
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unshift @{ $self->{line} }, $2
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if $self->{argtypes}
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and $self->{ret_type} =~ s/^(.*?\w.*?)\s*\b(\w+\s*\(.*)/$1/s;
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# a function definition needs at least 2 lines
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$self->blurt("Error: Function definition too short '$self->{ret_type}'"), next PARAGRAPH
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unless @{ $self->{line} };
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my $externC = 1 if $self->{ret_type} =~ s/^extern "C"\s+//;
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my $static = 1 if $self->{ret_type} =~ s/^static\s+//;
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my $func_header = shift(@{ $self->{line} });
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$self->blurt("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH
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unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*(const)?\s*(;\s*)?$/s;
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my ($class, $orig_args);
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($class, $self->{func_name}, $orig_args) = ($1, $2, $3);
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$class = "$4 $class" if $4;
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($self->{pname} = $self->{func_name}) =~ s/^($self->{Prefix})?/$self->{Packprefix}/;
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my $clean_func_name;
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($clean_func_name = $self->{func_name}) =~ s/^$self->{Prefix}//;
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$self->{Full_func_name} = "$self->{Packid}_$clean_func_name";
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if ($Is_VMS) {
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$self->{Full_func_name} = $SymSet->addsym( $self->{Full_func_name} );
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}
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# Check for duplicate function definition
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for my $tmp (@{ $self->{XSStack} }) {
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next unless defined $tmp->{functions}{ $self->{Full_func_name} };
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Warn( $self, "Warning: duplicate function definition '$clean_func_name' detected");
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last;
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}
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$self->{XSStack}->[$XSS_work_idx]{functions}{ $self->{Full_func_name} }++;
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delete $self->{XsubAliases};
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delete $self->{XsubAliasValues};
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%{ $self->{Interfaces} } = ();
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@{ $self->{Attributes} } = ();
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$self->{DoSetMagic} = 1;
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$orig_args =~ s/\\\s*/ /g; # process line continuations
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my @args;
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my (@fake_INPUT_pre); # For length(s) generated variables
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my (@fake_INPUT);
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my $only_C_inlist_ref = {}; # Not in the signature of Perl function
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if ($self->{argtypes} and $orig_args =~ /\S/) {
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my $args = "$orig_args ,";
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use re 'eval';
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if ($args =~ /^( (??{ $C_arg }) , )* $ /x) {
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@args = ($args =~ /\G ( (??{ $C_arg }) ) , /xg);
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no re 'eval';
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for ( @args ) {
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s/^\s+//;
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s/\s+$//;
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my ($arg, $default) = ($_ =~ m/ ( [^=]* ) ( (?: = .* )? ) /x);
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my ($pre, $len_name) = ($arg =~ /(.*?) \s*
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\b ( \w+ | length\( \s*\w+\s* \) )
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\s* $ /x);
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next unless defined($pre) && length($pre);
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my $out_type = '';
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my $inout_var;
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if ($self->{inout} and s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\b\s*//) {
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my $type = $1;
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$out_type = $type if $type ne 'IN';
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$arg =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\b\s*//;
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$pre =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\b\s*//;
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}
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my $islength;
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if ($len_name =~ /^length\( \s* (\w+) \s* \)\z/x) {
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$len_name = "XSauto_length_of_$1";
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$islength = 1;
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die "Default value on length() argument: '$_'"
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if length $default;
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}
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if (length $pre or $islength) { # Has a type
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if ($islength) {
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push @fake_INPUT_pre, $arg;
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}
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else {
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push @fake_INPUT, $arg;
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}
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# warn "pushing '$arg'\n";
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$self->{argtype_seen}->{$len_name}++;
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$_ = "$len_name$default"; # Assigns to @args
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}
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$only_C_inlist_ref->{$_} = 1 if $out_type eq "OUTLIST" or $islength;
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push @{ $outlist_ref }, $len_name if $out_type =~ /OUTLIST$/;
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$self->{in_out}->{$len_name} = $out_type if $out_type;
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}
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}
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else {
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no re 'eval';
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@args = split(/\s*,\s*/, $orig_args);
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Warn( $self, "Warning: cannot parse argument list '$orig_args', fallback to split");
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}
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}
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else {
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@args = split(/\s*,\s*/, $orig_args);
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for (@args) {
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if ($self->{inout} and s/^(IN|IN_OUTLIST|OUTLIST|IN_OUT|OUT)\b\s*//) {
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my $out_type = $1;
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next if $out_type eq 'IN';
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$only_C_inlist_ref->{$_} = 1 if $out_type eq "OUTLIST";
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if ($out_type =~ /OUTLIST$/) {
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push @{ $outlist_ref }, undef;
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}
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$self->{in_out}->{$_} = $out_type;
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}
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}
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}
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if (defined($class)) {
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my $arg0 = ((defined($static) or $self->{func_name} eq 'new')
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? "CLASS" : "THIS");
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unshift(@args, $arg0);
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}
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my $extra_args = 0;
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my @args_num = ();
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my $num_args = 0;
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my $report_args = '';
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my $ellipsis;
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foreach my $i (0 .. $#args) {
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if ($args[$i] =~ s/\.\.\.//) {
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$ellipsis = 1;
|
|
if ($args[$i] eq '' && $i == $#args) {
|
|
$report_args .= ", ...";
|
|
pop(@args);
|
|
last;
|
|
}
|
|
}
|
|
if ($only_C_inlist_ref->{$args[$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;
|
|
$self->{defaults}->{$args[$i]} = $2;
|
|
$self->{defaults}->{$args[$i]} =~ s/"/\\"/g;
|
|
}
|
|
$self->{proto_arg}->[$i+1] = '$';
|
|
}
|
|
my $min_args = $num_args - $extra_args;
|
|
$report_args =~ s/"/\\"/g;
|
|
$report_args =~ s/^,\s+//;
|
|
$self->{func_args} = assign_func_args($self, \@args, $class);
|
|
@{ $self->{args_match} }{@args} = @args_num;
|
|
|
|
my $PPCODE = grep(/^\s*PPCODE\s*:/, @{ $self->{line} });
|
|
my $CODE = grep(/^\s*CODE\s*:/, @{ $self->{line} });
|
|
# Detect CODE: blocks which use ST(n)= or XST_m*(n,v)
|
|
# to set explicit return values.
|
|
my $EXPLICIT_RETURN = ($CODE &&
|
|
("@{ $self->{line} }" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x ));
|
|
|
|
$self->{ALIAS} = grep(/^\s*ALIAS\s*:/, @{ $self->{line} });
|
|
|
|
my $INTERFACE = grep(/^\s*INTERFACE\s*:/, @{ $self->{line} });
|
|
|
|
$xsreturn = 1 if $EXPLICIT_RETURN;
|
|
|
|
$externC = $externC ? qq[extern "C"] : "";
|
|
|
|
# print function header
|
|
print Q(<<"EOF");
|
|
#$externC
|
|
#XS_EUPXS(XS_$self->{Full_func_name}); /* prototype to pass -Wmissing-prototypes */
|
|
#XS_EUPXS(XS_$self->{Full_func_name})
|
|
#[[
|
|
# dVAR; dXSARGS;
|
|
EOF
|
|
print Q(<<"EOF") if $self->{ALIAS};
|
|
# dXSI32;
|
|
EOF
|
|
print Q(<<"EOF") if $INTERFACE;
|
|
# dXSFUNCTION($self->{ret_type});
|
|
EOF
|
|
|
|
$self->{cond} = set_cond($ellipsis, $min_args, $num_args);
|
|
|
|
print Q(<<"EOF") if $self->{except};
|
|
# char errbuf[1024];
|
|
# *errbuf = '\\0';
|
|
EOF
|
|
|
|
if($self->{cond}) {
|
|
print Q(<<"EOF");
|
|
# if ($self->{cond})
|
|
# croak_xs_usage(cv, "$report_args");
|
|
EOF
|
|
}
|
|
else {
|
|
# cv and items likely to be unused
|
|
print Q(<<"EOF");
|
|
# PERL_UNUSED_VAR(cv); /* -W */
|
|
# PERL_UNUSED_VAR(items); /* -W */
|
|
EOF
|
|
}
|
|
|
|
#gcc -Wall: if an xsub has PPCODE is used
|
|
#it is possible none of ST, XSRETURN or XSprePUSH macros are used
|
|
#hence 'ax' (setup by dXSARGS) is unused
|
|
#XXX: could breakup the dXSARGS; into dSP;dMARK;dITEMS
|
|
#but such a move could break third-party extensions
|
|
print Q(<<"EOF") if $PPCODE;
|
|
# PERL_UNUSED_VAR(ax); /* -Wall */
|
|
EOF
|
|
|
|
print Q(<<"EOF") if $PPCODE;
|
|
# SP -= items;
|
|
EOF
|
|
|
|
# Now do a block of some sort.
|
|
|
|
$self->{condnum} = 0;
|
|
$self->{cond} = ''; # last CASE: conditional
|
|
push(@{ $self->{line} }, "$END:");
|
|
push(@{ $self->{line_no} }, $self->{line_no}->[-1]);
|
|
$_ = '';
|
|
check_conditional_preprocessor_statements();
|
|
while (@{ $self->{line} }) {
|
|
|
|
$self->CASE_handler($_) if $self->check_keyword("CASE");
|
|
print Q(<<"EOF");
|
|
# $self->{except} [[
|
|
EOF
|
|
|
|
# do initialization of input variables
|
|
$self->{thisdone} = 0;
|
|
$self->{retvaldone} = 0;
|
|
$self->{deferred} = "";
|
|
%{ $self->{arg_list} } = ();
|
|
$self->{gotRETVAL} = 0;
|
|
$self->INPUT_handler($_);
|
|
$self->process_keyword("INPUT|PREINIT|INTERFACE_MACRO|C_ARGS|ALIAS|ATTRS|PROTOTYPE|SCOPE|OVERLOAD");
|
|
|
|
print Q(<<"EOF") if $self->{ScopeThisXSUB};
|
|
# ENTER;
|
|
# [[
|
|
EOF
|
|
|
|
if (!$self->{thisdone} && defined($class)) {
|
|
if (defined($static) or $self->{func_name} eq 'new') {
|
|
print "\tchar *";
|
|
$self->{var_types}->{"CLASS"} = "char *";
|
|
$self->generate_init( {
|
|
type => "char *",
|
|
num => 1,
|
|
var => "CLASS",
|
|
printed_name => undef,
|
|
} );
|
|
}
|
|
else {
|
|
print "\t" . map_type($self, "$class *");
|
|
$self->{var_types}->{"THIS"} = "$class *";
|
|
$self->generate_init( {
|
|
type => "$class *",
|
|
num => 1,
|
|
var => "THIS",
|
|
printed_name => undef,
|
|
} );
|
|
}
|
|
}
|
|
|
|
# These are set if OUTPUT is found and/or CODE using RETVAL
|
|
$self->{have_OUTPUT} = $self->{have_CODE_with_RETVAL} = 0;
|
|
|
|
my ($wantRETVAL);
|
|
# do code
|
|
if (/^\s*NOT_IMPLEMENTED_YET/) {
|
|
print "\n\tPerl_croak(aTHX_ \"$self->{pname}: not implemented yet\");\n";
|
|
$_ = '';
|
|
}
|
|
else {
|
|
if ($self->{ret_type} ne "void") {
|
|
print "\t" . map_type($self, $self->{ret_type}, 'RETVAL') . ";\n"
|
|
if !$self->{retvaldone};
|
|
$self->{args_match}->{"RETVAL"} = 0;
|
|
$self->{var_types}->{"RETVAL"} = $self->{ret_type};
|
|
my $outputmap = $self->{typemap}->get_outputmap( ctype => $self->{ret_type} );
|
|
print "\tdXSTARG;\n"
|
|
if $self->{optimize} and $outputmap and $outputmap->targetable;
|
|
}
|
|
|
|
if (@fake_INPUT or @fake_INPUT_pre) {
|
|
unshift @{ $self->{line} }, @fake_INPUT_pre, @fake_INPUT, $_;
|
|
$_ = "";
|
|
$self->{processing_arg_with_types} = 1;
|
|
$self->INPUT_handler($_);
|
|
}
|
|
print $self->{deferred};
|
|
|
|
$self->process_keyword("INIT|ALIAS|ATTRS|PROTOTYPE|INTERFACE_MACRO|INTERFACE|C_ARGS|OVERLOAD");
|
|
|
|
if ($self->check_keyword("PPCODE")) {
|
|
$self->print_section();
|
|
$self->death("PPCODE must be last thing") if @{ $self->{line} };
|
|
print "\tLEAVE;\n" if $self->{ScopeThisXSUB};
|
|
print "\tPUTBACK;\n\treturn;\n";
|
|
}
|
|
elsif ($self->check_keyword("CODE")) {
|
|
my $consumed_code = $self->print_section();
|
|
if ($consumed_code =~ /\bRETVAL\b/) {
|
|
$self->{have_CODE_with_RETVAL} = 1;
|
|
}
|
|
}
|
|
elsif (defined($class) and $self->{func_name} eq "DESTROY") {
|
|
print "\n\t";
|
|
print "delete THIS;\n";
|
|
}
|
|
else {
|
|
print "\n\t";
|
|
if ($self->{ret_type} ne "void") {
|
|
print "RETVAL = ";
|
|
$wantRETVAL = 1;
|
|
}
|
|
if (defined($static)) {
|
|
if ($self->{func_name} eq 'new') {
|
|
$self->{func_name} = "$class";
|
|
}
|
|
else {
|
|
print "${class}::";
|
|
}
|
|
}
|
|
elsif (defined($class)) {
|
|
if ($self->{func_name} eq 'new') {
|
|
$self->{func_name} .= " $class";
|
|
}
|
|
else {
|
|
print "THIS->";
|
|
}
|
|
}
|
|
my $strip = $self->{strip_c_func_prefix};
|
|
$self->{func_name} =~ s/^\Q$strip//
|
|
if defined $strip;
|
|
$self->{func_name} = 'XSFUNCTION' if $self->{interface};
|
|
print "$self->{func_name}($self->{func_args});\n";
|
|
}
|
|
}
|
|
|
|
# do output variables
|
|
$self->{gotRETVAL} = 0; # 1 if RETVAL seen in OUTPUT section;
|
|
undef $self->{RETVAL_code} ; # code to set RETVAL (from OUTPUT section);
|
|
# $wantRETVAL set if 'RETVAL =' autogenerated
|
|
($wantRETVAL, $self->{ret_type}) = (0, 'void') if $RETVAL_no_return;
|
|
undef %{ $self->{outargs} };
|
|
|
|
$self->process_keyword("POSTCALL|OUTPUT|ALIAS|ATTRS|PROTOTYPE|OVERLOAD");
|
|
|
|
# A CODE section with RETVAL, but no OUTPUT? FAIL!
|
|
if ($self->{have_CODE_with_RETVAL} and not $self->{have_OUTPUT} and $self->{ret_type} ne 'void') {
|
|
$self->Warn("Warning: Found a 'CODE' section which seems to be using 'RETVAL' but no 'OUTPUT' section.");
|
|
}
|
|
|
|
$self->generate_output( {
|
|
type => $self->{var_types}->{$_},
|
|
num => $self->{args_match}->{$_},
|
|
var => $_,
|
|
do_setmagic => $self->{DoSetMagic},
|
|
do_push => undef,
|
|
} ) for grep $self->{in_out}->{$_} =~ /OUT$/, sort keys %{ $self->{in_out} };
|
|
|
|
my $prepush_done;
|
|
# all OUTPUT done, so now push the return value on the stack
|
|
if ($self->{gotRETVAL} && $self->{RETVAL_code}) {
|
|
print "\t$self->{RETVAL_code}\n";
|
|
}
|
|
elsif ($self->{gotRETVAL} || $wantRETVAL) {
|
|
my $outputmap = $self->{typemap}->get_outputmap( ctype => $self->{ret_type} );
|
|
my $trgt = $self->{optimize} && $outputmap && $outputmap->targetable;
|
|
my $var = 'RETVAL';
|
|
my $type = $self->{ret_type};
|
|
|
|
if ($trgt) {
|
|
my $what = $self->eval_output_typemap_code(
|
|
qq("$trgt->{what}"),
|
|
{var => $var, type => $self->{ret_type}}
|
|
);
|
|
if (not $trgt->{with_size} and $trgt->{type} eq 'p') { # sv_setpv
|
|
# PUSHp corresponds to sv_setpvn. Treat sv_setpv directly
|
|
print "\tsv_setpv(TARG, $what); XSprePUSH; PUSHTARG;\n";
|
|
$prepush_done = 1;
|
|
}
|
|
else {
|
|
my $tsize = $trgt->{what_size};
|
|
$tsize = '' unless defined $tsize;
|
|
$tsize = $self->eval_output_typemap_code(
|
|
qq("$tsize"),
|
|
{var => $var, type => $self->{ret_type}}
|
|
);
|
|
print "\tXSprePUSH; PUSH$trgt->{type}($what$tsize);\n";
|
|
$prepush_done = 1;
|
|
}
|
|
}
|
|
else {
|
|
# RETVAL almost never needs SvSETMAGIC()
|
|
$self->generate_output( {
|
|
type => $self->{ret_type},
|
|
num => 0,
|
|
var => 'RETVAL',
|
|
do_setmagic => 0,
|
|
do_push => undef,
|
|
} );
|
|
}
|
|
}
|
|
|
|
$xsreturn = 1 if $self->{ret_type} ne "void";
|
|
my $num = $xsreturn;
|
|
my $c = @{ $outlist_ref };
|
|
print "\tXSprePUSH;" if $c and not $prepush_done;
|
|
print "\tEXTEND(SP,$c);\n" if $c;
|
|
$xsreturn += $c;
|
|
$self->generate_output( {
|
|
type => $self->{var_types}->{$_},
|
|
num => $num++,
|
|
var => $_,
|
|
do_setmagic => 0,
|
|
do_push => 1,
|
|
} ) for @{ $outlist_ref };
|
|
|
|
# do cleanup
|
|
$self->process_keyword("CLEANUP|ALIAS|ATTRS|PROTOTYPE|OVERLOAD");
|
|
|
|
print Q(<<"EOF") if $self->{ScopeThisXSUB};
|
|
# ]]
|
|
EOF
|
|
print Q(<<"EOF") if $self->{ScopeThisXSUB} and not $PPCODE;
|
|
# LEAVE;
|
|
EOF
|
|
|
|
# print function trailer
|
|
print Q(<<"EOF");
|
|
# ]]
|
|
EOF
|
|
print Q(<<"EOF") if $self->{except};
|
|
# BEGHANDLERS
|
|
# CATCHALL
|
|
# sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason);
|
|
# ENDHANDLERS
|
|
EOF
|
|
if ($self->check_keyword("CASE")) {
|
|
$self->blurt("Error: No 'CASE:' at top of function")
|
|
unless $self->{condnum};
|
|
$_ = "CASE: $_"; # Restore CASE: label
|
|
next;
|
|
}
|
|
last if $_ eq "$END:";
|
|
$self->death(/^$BLOCK_regexp/o ? "Misplaced '$1:'" : "Junk at end of function ($_)");
|
|
}
|
|
|
|
print Q(<<"EOF") if $self->{except};
|
|
# if (errbuf[0])
|
|
# Perl_croak(aTHX_ errbuf);
|
|
EOF
|
|
|
|
if ($xsreturn) {
|
|
print Q(<<"EOF") unless $PPCODE;
|
|
# XSRETURN($xsreturn);
|
|
EOF
|
|
}
|
|
else {
|
|
print Q(<<"EOF") unless $PPCODE;
|
|
# XSRETURN_EMPTY;
|
|
EOF
|
|
}
|
|
|
|
print Q(<<"EOF");
|
|
#]]
|
|
#
|
|
EOF
|
|
|
|
$self->{proto} = "";
|
|
unless($self->{ProtoThisXSUB}) {
|
|
$self->{newXS} = "newXS_deffile";
|
|
$self->{file} = "";
|
|
}
|
|
else {
|
|
# Build the prototype string for the xsub
|
|
$self->{newXS} = "newXSproto_portable";
|
|
$self->{file} = ", file";
|
|
|
|
if ($self->{ProtoThisXSUB} eq 2) {
|
|
# User has specified empty prototype
|
|
}
|
|
elsif ($self->{ProtoThisXSUB} eq 1) {
|
|
my $s = ';';
|
|
if ($min_args < $num_args) {
|
|
$s = '';
|
|
$self->{proto_arg}->[$min_args] .= ";";
|
|
}
|
|
push @{ $self->{proto_arg} }, "$s\@"
|
|
if $ellipsis;
|
|
|
|
$self->{proto} = join ("", grep defined, @{ $self->{proto_arg} } );
|
|
}
|
|
else {
|
|
# User has specified a prototype
|
|
$self->{proto} = $self->{ProtoThisXSUB};
|
|
}
|
|
$self->{proto} = qq{, "$self->{proto}"};
|
|
}
|
|
|
|
if ($self->{XsubAliases} and keys %{ $self->{XsubAliases} }) {
|
|
$self->{XsubAliases}->{ $self->{pname} } = 0
|
|
unless defined $self->{XsubAliases}->{ $self->{pname} };
|
|
foreach my $xname (sort keys %{ $self->{XsubAliases} }) {
|
|
my $value = $self->{XsubAliases}{$xname};
|
|
push(@{ $self->{InitFileCode} }, Q(<<"EOF"));
|
|
# cv = $self->{newXS}(\"$xname\", XS_$self->{Full_func_name}$self->{file}$self->{proto});
|
|
# XSANY.any_i32 = $value;
|
|
EOF
|
|
}
|
|
}
|
|
elsif (@{ $self->{Attributes} }) {
|
|
push(@{ $self->{InitFileCode} }, Q(<<"EOF"));
|
|
# cv = $self->{newXS}(\"$self->{pname}\", XS_$self->{Full_func_name}$self->{file}$self->{proto});
|
|
# apply_attrs_string("$self->{Package}", cv, "@{ $self->{Attributes} }", 0);
|
|
EOF
|
|
}
|
|
elsif ($self->{interface}) {
|
|
foreach my $yname (sort keys %{ $self->{Interfaces} }) {
|
|
my $value = $self->{Interfaces}{$yname};
|
|
$yname = "$self->{Package}\::$yname" unless $yname =~ /::/;
|
|
push(@{ $self->{InitFileCode} }, Q(<<"EOF"));
|
|
# cv = $self->{newXS}(\"$yname\", XS_$self->{Full_func_name}$self->{file}$self->{proto});
|
|
# $self->{interface_macro_set}(cv,$value);
|
|
EOF
|
|
}
|
|
}
|
|
elsif($self->{newXS} eq 'newXS_deffile'){ # work around P5NCI's empty newXS macro
|
|
push(@{ $self->{InitFileCode} },
|
|
" $self->{newXS}(\"$self->{pname}\", XS_$self->{Full_func_name}$self->{file}$self->{proto});\n");
|
|
}
|
|
else {
|
|
push(@{ $self->{InitFileCode} },
|
|
" (void)$self->{newXS}(\"$self->{pname}\", XS_$self->{Full_func_name}$self->{file}$self->{proto});\n");
|
|
}
|
|
} # END 'PARAGRAPH' 'while' loop
|
|
|
|
if ($self->{Overload}) { # make it findable with fetchmethod
|
|
print Q(<<"EOF");
|
|
#XS_EUPXS(XS_$self->{Packid}_nil); /* prototype to pass -Wmissing-prototypes */
|
|
#XS_EUPXS(XS_$self->{Packid}_nil)
|
|
#{
|
|
# dXSARGS;
|
|
# PERL_UNUSED_VAR(items);
|
|
# XSRETURN_EMPTY;
|
|
#}
|
|
#
|
|
EOF
|
|
unshift(@{ $self->{InitFileCode} }, <<"MAKE_FETCHMETHOD_WORK");
|
|
/* Making a sub named "$self->{Package}::()" allows the package */
|
|
/* to be findable via fetchmethod(), and causes */
|
|
/* overload::Overloaded("$self->{Package}") to return true. */
|
|
(void)$self->{newXS}("$self->{Package}::()", XS_$self->{Packid}_nil$self->{file}$self->{proto});
|
|
MAKE_FETCHMETHOD_WORK
|
|
}
|
|
|
|
# print initialization routine
|
|
|
|
print Q(<<"EOF");
|
|
##ifdef __cplusplus
|
|
#extern "C"
|
|
##endif
|
|
EOF
|
|
|
|
print Q(<<"EOF");
|
|
#XS_EXTERNAL(boot_$self->{Module_cname}); /* prototype to pass -Wmissing-prototypes */
|
|
#XS_EXTERNAL(boot_$self->{Module_cname})
|
|
#[[
|
|
##if PERL_VERSION_LE(5, 21, 5)
|
|
# dVAR; dXSARGS;
|
|
##else
|
|
# dVAR; ${\($self->{WantVersionChk} ?
|
|
'dXSBOOTARGSXSAPIVERCHK;' : 'dXSBOOTARGSAPIVERCHK;')}
|
|
##endif
|
|
EOF
|
|
|
|
#Under 5.8.x and lower, newXS is declared in proto.h as expecting a non-const
|
|
#file name argument. If the wrong qualifier is used, it causes breakage with
|
|
#C++ compilers and warnings with recent gcc.
|
|
#-Wall: if there is no $self->{Full_func_name} there are no xsubs in this .xs
|
|
#so 'file' is unused
|
|
print Q(<<"EOF") if $self->{Full_func_name};
|
|
##if (PERL_REVISION == 5 && PERL_VERSION < 9)
|
|
# char* file = __FILE__;
|
|
##else
|
|
# const char* file = __FILE__;
|
|
##endif
|
|
#
|
|
# PERL_UNUSED_VAR(file);
|
|
EOF
|
|
|
|
print Q("#\n");
|
|
|
|
print Q(<<"EOF");
|
|
# PERL_UNUSED_VAR(cv); /* -W */
|
|
# PERL_UNUSED_VAR(items); /* -W */
|
|
EOF
|
|
|
|
if( $self->{WantVersionChk}){
|
|
print Q(<<"EOF") ;
|
|
##if PERL_VERSION_LE(5, 21, 5)
|
|
# XS_VERSION_BOOTCHECK;
|
|
## ifdef XS_APIVERSION_BOOTCHECK
|
|
# XS_APIVERSION_BOOTCHECK;
|
|
## endif
|
|
##endif
|
|
|
|
EOF
|
|
} else {
|
|
print Q(<<"EOF") ;
|
|
##if PERL_VERSION_LE(5, 21, 5) && defined(XS_APIVERSION_BOOTCHECK)
|
|
# XS_APIVERSION_BOOTCHECK;
|
|
##endif
|
|
|
|
EOF
|
|
}
|
|
|
|
print Q(<<"EOF") if defined $self->{XsubAliases} or defined $self->{interfaces};
|
|
# {
|
|
# CV * cv;
|
|
#
|
|
EOF
|
|
|
|
print Q(<<"EOF") if ($self->{Overload});
|
|
# /* register the overloading (type 'A') magic */
|
|
##if (PERL_REVISION == 5 && PERL_VERSION < 9)
|
|
# PL_amagic_generation++;
|
|
##endif
|
|
# /* The magic for overload gets a GV* via gv_fetchmeth as */
|
|
# /* mentioned above, and looks in the SV* slot of it for */
|
|
# /* the "fallback" status. */
|
|
# sv_setsv(
|
|
# get_sv( "$self->{Package}::()", TRUE ),
|
|
# $self->{Fallback}
|
|
# );
|
|
EOF
|
|
|
|
print @{ $self->{InitFileCode} };
|
|
|
|
print Q(<<"EOF") if defined $self->{XsubAliases} or defined $self->{interfaces};
|
|
# }
|
|
EOF
|
|
|
|
if (@{ $BootCode_ref }) {
|
|
print "\n /* Initialisation Section */\n\n";
|
|
@{ $self->{line} } = @{ $BootCode_ref };
|
|
$self->print_section();
|
|
print "\n /* End of Initialisation Section */\n\n";
|
|
}
|
|
|
|
print Q(<<'EOF');
|
|
##if PERL_VERSION_LE(5, 21, 5)
|
|
## if PERL_VERSION_GE(5, 9, 0)
|
|
# if (PL_unitcheckav)
|
|
# call_list(PL_scopestack_ix, PL_unitcheckav);
|
|
## endif
|
|
# XSRETURN_YES;
|
|
##else
|
|
# Perl_xs_boot_epilog(aTHX_ ax);
|
|
##endif
|
|
#]]
|
|
#
|
|
EOF
|
|
|
|
warn("Please specify prototyping behavior for $self->{filename} (see perlxs manual)\n")
|
|
unless $self->{ProtoUsed};
|
|
|
|
chdir($orig_cwd);
|
|
select($orig_fh);
|
|
untie *PSEUDO_STDOUT if tied *PSEUDO_STDOUT;
|
|
close $self->{FH};
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub report_error_count {
|
|
if (@_) {
|
|
return $_[0]->{errors}||0;
|
|
}
|
|
else {
|
|
return $Singleton->{errors}||0;
|
|
}
|
|
}
|
|
|
|
# Input: ($self, $_, @{ $self->{line} }) == unparsed input.
|
|
# Output: ($_, @{ $self->{line} }) == (rest of line, following lines).
|
|
# Return: the matched keyword if found, otherwise 0
|
|
sub check_keyword {
|
|
my $self = shift;
|
|
$_ = shift(@{ $self->{line} }) while !/\S/ && @{ $self->{line} };
|
|
s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2;
|
|
}
|
|
|
|
sub print_section {
|
|
my $self = shift;
|
|
|
|
# the "do" is required for right semantics
|
|
do { $_ = shift(@{ $self->{line} }) } while !/\S/ && @{ $self->{line} };
|
|
|
|
my $consumed_code = '';
|
|
|
|
print("#line ", $self->{line_no}->[@{ $self->{line_no} } - @{ $self->{line} } -1], " \"",
|
|
escape_file_for_line_directive($self->{filepathname}), "\"\n")
|
|
if $self->{WantLineNumbers} && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/;
|
|
for (; defined($_) && !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
print "$_\n";
|
|
$consumed_code .= "$_\n";
|
|
}
|
|
print 'ExtUtils::ParseXS::CountLines'->end_marker, "\n" if $self->{WantLineNumbers};
|
|
|
|
return $consumed_code;
|
|
}
|
|
|
|
sub merge_section {
|
|
my $self = shift;
|
|
my $in = '';
|
|
|
|
while (!/\S/ && @{ $self->{line} }) {
|
|
$_ = shift(@{ $self->{line} });
|
|
}
|
|
|
|
for (; defined($_) && !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
$in .= "$_\n";
|
|
}
|
|
chomp $in;
|
|
return $in;
|
|
}
|
|
|
|
sub process_keyword {
|
|
my($self, $pattern) = @_;
|
|
|
|
while (my $kwd = $self->check_keyword($pattern)) {
|
|
my $method = $kwd . "_handler";
|
|
$self->$method($_);
|
|
}
|
|
}
|
|
|
|
sub CASE_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
$self->blurt("Error: 'CASE:' after unconditional 'CASE:'")
|
|
if $self->{condnum} && $self->{cond} eq '';
|
|
$self->{cond} = $_;
|
|
trim_whitespace($self->{cond});
|
|
print " ", ($self->{condnum}++ ? " else" : ""), ($self->{cond} ? " if ($self->{cond})\n" : "\n");
|
|
$_ = '';
|
|
}
|
|
|
|
sub INPUT_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
last if /^\s*NOT_IMPLEMENTED_YET/;
|
|
next unless /\S/; # skip blank lines
|
|
|
|
trim_whitespace($_);
|
|
my $ln = $_;
|
|
|
|
# remove trailing semicolon if no initialisation
|
|
s/\s*;$//g unless /[=;+].*\S/;
|
|
|
|
# Process the length(foo) declarations
|
|
if (s/^([^=]*)\blength\(\s*(\w+)\s*\)\s*$/$1 XSauto_length_of_$2=NO_INIT/x) {
|
|
print "\tSTRLEN\tSTRLEN_length_of_$2;\n";
|
|
$self->{lengthof}->{$2} = undef;
|
|
$self->{deferred} .= "\n\tXSauto_length_of_$2 = STRLEN_length_of_$2;\n";
|
|
}
|
|
|
|
# check for optional initialisation code
|
|
my $var_init = '';
|
|
$var_init = $1 if s/\s*([=;+].*)$//s;
|
|
$var_init =~ s/"/\\"/g;
|
|
# *sigh* It's valid to supply explicit input typemaps in the argument list...
|
|
my $is_overridden_typemap = $var_init =~ /ST\s*\(|\$arg\b/;
|
|
|
|
s/\s+/ /g;
|
|
my ($var_type, $var_addr, $var_name) = /^(.*?[^&\s])\s*(\&?)\s*\b(\w+)$/s
|
|
or $self->blurt("Error: invalid argument declaration '$ln'"), next;
|
|
|
|
# Check for duplicate definitions
|
|
$self->blurt("Error: duplicate definition of argument '$var_name' ignored"), next
|
|
if $self->{arg_list}->{$var_name}++
|
|
or defined $self->{argtype_seen}->{$var_name} and not $self->{processing_arg_with_types};
|
|
|
|
$self->{thisdone} |= $var_name eq "THIS";
|
|
$self->{retvaldone} |= $var_name eq "RETVAL";
|
|
$self->{var_types}->{$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.
|
|
my $printed_name;
|
|
if ($var_type =~ / \( \s* \* \s* \) /x) {
|
|
# Function pointers are not yet supported with output_init()!
|
|
print "\t" . map_type($self, $var_type, $var_name);
|
|
$printed_name = 1;
|
|
}
|
|
else {
|
|
print "\t" . map_type($self, $var_type, undef);
|
|
$printed_name = 0;
|
|
}
|
|
$self->{var_num} = $self->{args_match}->{$var_name};
|
|
|
|
if ($self->{var_num}) {
|
|
my $typemap = $self->{typemap}->get_typemap(ctype => $var_type);
|
|
$self->report_typemap_failure($self->{typemap}, $var_type, "death")
|
|
if not $typemap and not $is_overridden_typemap;
|
|
$self->{proto_arg}->[$self->{var_num}] = ($typemap && $typemap->proto) || "\$";
|
|
}
|
|
$self->{func_args} =~ s/\b($var_name)\b/&$1/ if $var_addr;
|
|
if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/
|
|
or $self->{in_out}->{$var_name} and $self->{in_out}->{$var_name} =~ /^OUT/
|
|
and $var_init !~ /\S/) {
|
|
if ($printed_name) {
|
|
print ";\n";
|
|
}
|
|
else {
|
|
print "\t$var_name;\n";
|
|
}
|
|
}
|
|
elsif ($var_init =~ /\S/) {
|
|
$self->output_init( {
|
|
type => $var_type,
|
|
num => $self->{var_num},
|
|
var => $var_name,
|
|
init => $var_init,
|
|
printed_name => $printed_name,
|
|
} );
|
|
}
|
|
elsif ($self->{var_num}) {
|
|
$self->generate_init( {
|
|
type => $var_type,
|
|
num => $self->{var_num},
|
|
var => $var_name,
|
|
printed_name => $printed_name,
|
|
} );
|
|
}
|
|
else {
|
|
print ";\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
sub OUTPUT_handler {
|
|
my $self = shift;
|
|
$self->{have_OUTPUT} = 1;
|
|
|
|
$_ = shift;
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
next unless /\S/;
|
|
if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) {
|
|
$self->{DoSetMagic} = ($1 eq "ENABLE" ? 1 : 0);
|
|
next;
|
|
}
|
|
my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s;
|
|
$self->blurt("Error: duplicate OUTPUT argument '$outarg' ignored"), next
|
|
if $self->{outargs}->{$outarg}++;
|
|
if (!$self->{gotRETVAL} and $outarg eq 'RETVAL') {
|
|
# deal with RETVAL last
|
|
$self->{RETVAL_code} = $outcode;
|
|
$self->{gotRETVAL} = 1;
|
|
next;
|
|
}
|
|
$self->blurt("Error: OUTPUT $outarg not an argument"), next
|
|
unless defined($self->{args_match}->{$outarg});
|
|
$self->blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next
|
|
unless defined $self->{var_types}->{$outarg};
|
|
$self->{var_num} = $self->{args_match}->{$outarg};
|
|
if ($outcode) {
|
|
print "\t$outcode\n";
|
|
print "\tSvSETMAGIC(ST(" , $self->{var_num} - 1 , "));\n" if $self->{DoSetMagic};
|
|
}
|
|
else {
|
|
$self->generate_output( {
|
|
type => $self->{var_types}->{$outarg},
|
|
num => $self->{var_num},
|
|
var => $outarg,
|
|
do_setmagic => $self->{DoSetMagic},
|
|
do_push => undef,
|
|
} );
|
|
}
|
|
delete $self->{in_out}->{$outarg} # No need to auto-OUTPUT
|
|
if exists $self->{in_out}->{$outarg} and $self->{in_out}->{$outarg} =~ /OUT$/;
|
|
}
|
|
}
|
|
|
|
sub C_ARGS_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
my $in = $self->merge_section();
|
|
|
|
trim_whitespace($in);
|
|
$self->{func_args} = $in;
|
|
}
|
|
|
|
sub INTERFACE_MACRO_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
my $in = $self->merge_section();
|
|
|
|
trim_whitespace($in);
|
|
if ($in =~ /\s/) { # two
|
|
($self->{interface_macro}, $self->{interface_macro_set}) = split ' ', $in;
|
|
}
|
|
else {
|
|
$self->{interface_macro} = $in;
|
|
$self->{interface_macro_set} = 'UNKNOWN_CVT'; # catch later
|
|
}
|
|
$self->{interface} = 1; # local
|
|
$self->{interfaces} = 1; # global
|
|
}
|
|
|
|
sub INTERFACE_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
my $in = $self->merge_section();
|
|
|
|
trim_whitespace($in);
|
|
|
|
foreach (split /[\s,]+/, $in) {
|
|
my $iface_name = $_;
|
|
$iface_name =~ s/^$self->{Prefix}//;
|
|
$self->{Interfaces}->{$iface_name} = $_;
|
|
}
|
|
print Q(<<"EOF");
|
|
# XSFUNCTION = $self->{interface_macro}($self->{ret_type},cv,XSANY.any_dptr);
|
|
EOF
|
|
$self->{interface} = 1; # local
|
|
$self->{interfaces} = 1; # global
|
|
}
|
|
|
|
sub CLEANUP_handler {
|
|
my $self = shift;
|
|
$self->print_section();
|
|
}
|
|
|
|
sub PREINIT_handler {
|
|
my $self = shift;
|
|
$self->print_section();
|
|
}
|
|
|
|
sub POSTCALL_handler {
|
|
my $self = shift;
|
|
$self->print_section();
|
|
}
|
|
|
|
sub INIT_handler {
|
|
my $self = shift;
|
|
$self->print_section();
|
|
}
|
|
|
|
sub get_aliases {
|
|
my $self = shift;
|
|
my ($line) = @_;
|
|
my ($orig) = $line;
|
|
|
|
# Parse alias definitions
|
|
# format is
|
|
# alias = value alias = value ...
|
|
|
|
while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) {
|
|
my ($alias, $value) = ($1, $2);
|
|
my $orig_alias = $alias;
|
|
|
|
# check for optional package definition in the alias
|
|
$alias = $self->{Packprefix} . $alias if $alias !~ /::/;
|
|
|
|
# check for duplicate alias name & duplicate value
|
|
Warn( $self, "Warning: Ignoring duplicate alias '$orig_alias'")
|
|
if defined $self->{XsubAliases}->{$alias};
|
|
|
|
Warn( $self, "Warning: Aliases '$orig_alias' and '$self->{XsubAliasValues}->{$value}' have identical values")
|
|
if $self->{XsubAliasValues}->{$value};
|
|
|
|
$self->{XsubAliases}->{$alias} = $value;
|
|
$self->{XsubAliasValues}->{$value} = $orig_alias;
|
|
}
|
|
|
|
blurt( $self, "Error: Cannot parse ALIAS definitions from '$orig'")
|
|
if $line;
|
|
}
|
|
|
|
sub ATTRS_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
next unless /\S/;
|
|
trim_whitespace($_);
|
|
push @{ $self->{Attributes} }, $_;
|
|
}
|
|
}
|
|
|
|
sub ALIAS_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
next unless /\S/;
|
|
trim_whitespace($_);
|
|
$self->get_aliases($_) if $_;
|
|
}
|
|
}
|
|
|
|
sub OVERLOAD_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
next unless /\S/;
|
|
trim_whitespace($_);
|
|
while ( s/^\s*([\w:"\\)\+\-\*\/\%\<\>\.\&\|\^\!\~\{\}\=]+)\s*//) {
|
|
$self->{Overload} = 1 unless $self->{Overload};
|
|
my $overload = "$self->{Package}\::(".$1;
|
|
push(@{ $self->{InitFileCode} },
|
|
" (void)$self->{newXS}(\"$overload\", XS_$self->{Full_func_name}$self->{file}$self->{proto});\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
sub FALLBACK_handler {
|
|
my ($self, $setting) = @_;
|
|
|
|
# the rest of the current line should contain either TRUE,
|
|
# FALSE or UNDEF
|
|
|
|
trim_whitespace($setting);
|
|
$setting = uc($setting);
|
|
|
|
my %map = (
|
|
TRUE => "&PL_sv_yes", 1 => "&PL_sv_yes",
|
|
FALSE => "&PL_sv_no", 0 => "&PL_sv_no",
|
|
UNDEF => "&PL_sv_undef",
|
|
);
|
|
|
|
# check for valid FALLBACK value
|
|
$self->death("Error: FALLBACK: TRUE/FALSE/UNDEF") unless exists $map{$setting};
|
|
|
|
$self->{Fallback} = $map{$setting};
|
|
}
|
|
|
|
|
|
sub REQUIRE_handler {
|
|
# the rest of the current line should contain a version number
|
|
my ($self, $ver) = @_;
|
|
|
|
trim_whitespace($ver);
|
|
|
|
$self->death("Error: REQUIRE expects a version number")
|
|
unless $ver;
|
|
|
|
# check that the version number is of the form n.n
|
|
$self->death("Error: REQUIRE: expected a number, got '$ver'")
|
|
unless $ver =~ /^\d+(\.\d*)?/;
|
|
|
|
$self->death("Error: xsubpp $ver (or better) required--this is only $VERSION.")
|
|
unless $VERSION >= $ver;
|
|
}
|
|
|
|
sub VERSIONCHECK_handler {
|
|
# the rest of the current line should contain either ENABLE or
|
|
# DISABLE
|
|
my ($self, $setting) = @_;
|
|
|
|
trim_whitespace($setting);
|
|
|
|
# check for ENABLE/DISABLE
|
|
$self->death("Error: VERSIONCHECK: ENABLE/DISABLE")
|
|
unless $setting =~ /^(ENABLE|DISABLE)/i;
|
|
|
|
$self->{WantVersionChk} = 1 if $1 eq 'ENABLE';
|
|
$self->{WantVersionChk} = 0 if $1 eq 'DISABLE';
|
|
|
|
}
|
|
|
|
sub PROTOTYPE_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
|
|
my $specified;
|
|
|
|
$self->death("Error: Only 1 PROTOTYPE definition allowed per xsub")
|
|
if $self->{proto_in_this_xsub}++;
|
|
|
|
for (; !/^$BLOCK_regexp/o; $_ = shift(@{ $self->{line} })) {
|
|
next unless /\S/;
|
|
$specified = 1;
|
|
trim_whitespace($_);
|
|
if ($_ eq 'DISABLE') {
|
|
$self->{ProtoThisXSUB} = 0;
|
|
}
|
|
elsif ($_ eq 'ENABLE') {
|
|
$self->{ProtoThisXSUB} = 1;
|
|
}
|
|
else {
|
|
# remove any whitespace
|
|
s/\s+//g;
|
|
$self->death("Error: Invalid prototype '$_'")
|
|
unless valid_proto_string($_);
|
|
$self->{ProtoThisXSUB} = C_string($_);
|
|
}
|
|
}
|
|
|
|
# If no prototype specified, then assume empty prototype ""
|
|
$self->{ProtoThisXSUB} = 2 unless $specified;
|
|
|
|
$self->{ProtoUsed} = 1;
|
|
}
|
|
|
|
sub SCOPE_handler {
|
|
# Rest of line should be either ENABLE or DISABLE
|
|
my ($self, $setting) = @_;
|
|
|
|
$self->death("Error: Only 1 SCOPE declaration allowed per xsub")
|
|
if $self->{scope_in_this_xsub}++;
|
|
|
|
trim_whitespace($setting);
|
|
$self->death("Error: SCOPE: ENABLE/DISABLE")
|
|
unless $setting =~ /^(ENABLE|DISABLE)\b/i;
|
|
$self->{ScopeThisXSUB} = ( uc($1) eq 'ENABLE' );
|
|
}
|
|
|
|
sub PROTOTYPES_handler {
|
|
# the rest of the current line should contain either ENABLE or
|
|
# DISABLE
|
|
my ($self, $setting) = @_;
|
|
|
|
trim_whitespace($setting);
|
|
|
|
# check for ENABLE/DISABLE
|
|
$self->death("Error: PROTOTYPES: ENABLE/DISABLE")
|
|
unless $setting =~ /^(ENABLE|DISABLE)/i;
|
|
|
|
$self->{WantPrototypes} = 1 if $1 eq 'ENABLE';
|
|
$self->{WantPrototypes} = 0 if $1 eq 'DISABLE';
|
|
$self->{ProtoUsed} = 1;
|
|
}
|
|
|
|
sub EXPORT_XSUB_SYMBOLS_handler {
|
|
# the rest of the current line should contain either ENABLE or
|
|
# DISABLE
|
|
my ($self, $setting) = @_;
|
|
|
|
trim_whitespace($setting);
|
|
|
|
# check for ENABLE/DISABLE
|
|
$self->death("Error: EXPORT_XSUB_SYMBOLS: ENABLE/DISABLE")
|
|
unless $setting =~ /^(ENABLE|DISABLE)/i;
|
|
|
|
my $xs_impl = $1 eq 'ENABLE' ? 'XS_EXTERNAL' : 'XS_INTERNAL';
|
|
|
|
print Q(<<"EOF");
|
|
##undef XS_EUPXS
|
|
##if defined(PERL_EUPXS_ALWAYS_EXPORT)
|
|
## define XS_EUPXS(name) XS_EXTERNAL(name)
|
|
##elif defined(PERL_EUPXS_NEVER_EXPORT)
|
|
## define XS_EUPXS(name) XS_INTERNAL(name)
|
|
##else
|
|
## define XS_EUPXS(name) $xs_impl(name)
|
|
##endif
|
|
EOF
|
|
}
|
|
|
|
|
|
sub PushXSStack {
|
|
my $self = shift;
|
|
my %args = @_;
|
|
# Save the current file context.
|
|
push(@{ $self->{XSStack} }, {
|
|
type => 'file',
|
|
LastLine => $self->{lastline},
|
|
LastLineNo => $self->{lastline_no},
|
|
Line => $self->{line},
|
|
LineNo => $self->{line_no},
|
|
Filename => $self->{filename},
|
|
Filepathname => $self->{filepathname},
|
|
Handle => $self->{FH},
|
|
IsPipe => scalar($self->{filename} =~ /\|\s*$/),
|
|
%args,
|
|
});
|
|
|
|
}
|
|
|
|
sub INCLUDE_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
# the rest of the current line should contain a valid filename
|
|
|
|
trim_whitespace($_);
|
|
|
|
$self->death("INCLUDE: filename missing")
|
|
unless $_;
|
|
|
|
$self->death("INCLUDE: output pipe is illegal")
|
|
if /^\s*\|/;
|
|
|
|
# simple minded recursion detector
|
|
$self->death("INCLUDE loop detected")
|
|
if $self->{IncludedFiles}->{$_};
|
|
|
|
++$self->{IncludedFiles}->{$_} unless /\|\s*$/;
|
|
|
|
if (/\|\s*$/ && /^\s*perl\s/) {
|
|
Warn( $self, "The INCLUDE directive with a command is discouraged." .
|
|
" Use INCLUDE_COMMAND instead! In particular using 'perl'" .
|
|
" in an 'INCLUDE: ... |' directive is not guaranteed to pick" .
|
|
" up the correct perl. The INCLUDE_COMMAND directive allows" .
|
|
" the use of \$^X as the currently running perl, see" .
|
|
" 'perldoc perlxs' for details.");
|
|
}
|
|
|
|
$self->PushXSStack();
|
|
|
|
$self->{FH} = Symbol::gensym();
|
|
|
|
# open the new file
|
|
open($self->{FH}, $_) or $self->death("Cannot open '$_': $!");
|
|
|
|
print Q(<<"EOF");
|
|
#
|
|
#/* INCLUDE: Including '$_' from '$self->{filename}' */
|
|
#
|
|
EOF
|
|
|
|
$self->{filename} = $_;
|
|
$self->{filepathname} = ( $^O =~ /^mswin/i )
|
|
? qq($self->{dir}/$self->{filename}) # See CPAN RT #61908: gcc doesn't like backslashes on win32?
|
|
: File::Spec->catfile($self->{dir}, $self->{filename});
|
|
|
|
# Prime the pump by reading the first
|
|
# non-blank line
|
|
|
|
# skip leading blank lines
|
|
while (readline($self->{FH})) {
|
|
last unless /^\s*$/;
|
|
}
|
|
|
|
$self->{lastline} = $_;
|
|
$self->{lastline_no} = $.;
|
|
}
|
|
|
|
sub QuoteArgs {
|
|
my $cmd = shift;
|
|
my @args = split /\s+/, $cmd;
|
|
$cmd = shift @args;
|
|
for (@args) {
|
|
$_ = q(").$_.q(") if !/^\"/ && length($_) > 0;
|
|
}
|
|
return join (' ', ($cmd, @args));
|
|
}
|
|
|
|
# code copied from CPAN::HandleConfig::safe_quote
|
|
# - that has doc saying leave if start/finish with same quote, but no code
|
|
# given text, will conditionally quote it to protect from shell
|
|
{
|
|
my ($quote, $use_quote) = $^O eq 'MSWin32'
|
|
? (q{"}, q{"})
|
|
: (q{"'}, q{'});
|
|
sub _safe_quote {
|
|
my ($self, $command) = @_;
|
|
# Set up quote/default quote
|
|
if (defined($command)
|
|
and $command =~ /\s/
|
|
and $command !~ /[$quote]/) {
|
|
return qq{$use_quote$command$use_quote}
|
|
}
|
|
return $command;
|
|
}
|
|
}
|
|
|
|
sub INCLUDE_COMMAND_handler {
|
|
my $self = shift;
|
|
$_ = shift;
|
|
# the rest of the current line should contain a valid command
|
|
|
|
trim_whitespace($_);
|
|
|
|
$_ = QuoteArgs($_) if $^O eq 'VMS';
|
|
|
|
$self->death("INCLUDE_COMMAND: command missing")
|
|
unless $_;
|
|
|
|
$self->death("INCLUDE_COMMAND: pipes are illegal")
|
|
if /^\s*\|/ or /\|\s*$/;
|
|
|
|
$self->PushXSStack( IsPipe => 1 );
|
|
|
|
$self->{FH} = Symbol::gensym();
|
|
|
|
# If $^X is used in INCLUDE_COMMAND, we know it's supposed to be
|
|
# the same perl interpreter as we're currently running
|
|
my $X = $self->_safe_quote($^X); # quotes if has spaces
|
|
s/^\s*\$\^X/$X/;
|
|
|
|
# open the new file
|
|
open ($self->{FH}, "-|", $_)
|
|
or $self->death( $self, "Cannot run command '$_' to include its output: $!");
|
|
|
|
print Q(<<"EOF");
|
|
#
|
|
#/* INCLUDE_COMMAND: Including output of '$_' from '$self->{filename}' */
|
|
#
|
|
EOF
|
|
|
|
$self->{filename} = $_;
|
|
$self->{filepathname} = $self->{filename};
|
|
#$self->{filepathname} =~ s/\"/\\"/g; # Fails? See CPAN RT #53938: MinGW Broken after 2.21
|
|
$self->{filepathname} =~ s/\\/\\\\/g; # Works according to reporter of #53938
|
|
|
|
# Prime the pump by reading the first
|
|
# non-blank line
|
|
|
|
# skip leading blank lines
|
|
while (readline($self->{FH})) {
|
|
last unless /^\s*$/;
|
|
}
|
|
|
|
$self->{lastline} = $_;
|
|
$self->{lastline_no} = $.;
|
|
}
|
|
|
|
sub PopFile {
|
|
my $self = shift;
|
|
|
|
return 0 unless $self->{XSStack}->[-1]{type} eq 'file';
|
|
|
|
my $data = pop @{ $self->{XSStack} };
|
|
my $ThisFile = $self->{filename};
|
|
my $isPipe = $data->{IsPipe};
|
|
|
|
--$self->{IncludedFiles}->{$self->{filename}}
|
|
unless $isPipe;
|
|
|
|
close $self->{FH};
|
|
|
|
$self->{FH} = $data->{Handle};
|
|
# $filename is the leafname, which for some reason is used for diagnostic
|
|
# messages, whereas $filepathname is the full pathname, and is used for
|
|
# #line directives.
|
|
$self->{filename} = $data->{Filename};
|
|
$self->{filepathname} = $data->{Filepathname};
|
|
$self->{lastline} = $data->{LastLine};
|
|
$self->{lastline_no} = $data->{LastLineNo};
|
|
@{ $self->{line} } = @{ $data->{Line} };
|
|
@{ $self->{line_no} } = @{ $data->{LineNo} };
|
|
|
|
if ($isPipe and $? ) {
|
|
--$self->{lastline_no};
|
|
print STDERR "Error reading from pipe '$ThisFile': $! in $self->{filename}, line $self->{lastline_no}\n" ;
|
|
exit 1;
|
|
}
|
|
|
|
print Q(<<"EOF");
|
|
#
|
|
#/* INCLUDE: Returning to '$self->{filename}' from '$ThisFile' */
|
|
#
|
|
EOF
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub Q {
|
|
my($text) = @_;
|
|
$text =~ s/^#//gm;
|
|
$text =~ s/\[\[/{/g;
|
|
$text =~ s/\]\]/}/g;
|
|
$text;
|
|
}
|
|
|
|
# Process "MODULE = Foo ..." lines and update global state accordingly
|
|
sub _process_module_xs_line {
|
|
my ($self, $module, $pkg, $prefix) = @_;
|
|
|
|
($self->{Module_cname} = $module) =~ s/\W/_/g;
|
|
|
|
$self->{Package} = defined($pkg) ? $pkg : '';
|
|
$self->{Prefix} = quotemeta( defined($prefix) ? $prefix : '' );
|
|
|
|
($self->{Packid} = $self->{Package}) =~ tr/:/_/;
|
|
|
|
$self->{Packprefix} = $self->{Package};
|
|
$self->{Packprefix} .= "::" if $self->{Packprefix} ne "";
|
|
|
|
$self->{lastline} = "";
|
|
}
|
|
|
|
# Skip any embedded POD sections
|
|
sub _maybe_skip_pod {
|
|
my ($self) = @_;
|
|
|
|
while ($self->{lastline} =~ /^=/) {
|
|
while ($self->{lastline} = readline($self->{FH})) {
|
|
last if ($self->{lastline} =~ /^=cut\s*$/);
|
|
}
|
|
$self->death("Error: Unterminated pod") unless defined $self->{lastline};
|
|
$self->{lastline} = readline($self->{FH});
|
|
chomp $self->{lastline};
|
|
$self->{lastline} =~ s/^\s+$//;
|
|
}
|
|
}
|
|
|
|
# This chunk of code strips out (and parses) embedded TYPEMAP blocks
|
|
# which support a HEREdoc-alike block syntax.
|
|
sub _maybe_parse_typemap_block {
|
|
my ($self) = @_;
|
|
|
|
# This is special cased from the usual paragraph-handler logic
|
|
# due to the HEREdoc-ish syntax.
|
|
if ($self->{lastline} =~ /^TYPEMAP\s*:\s*<<\s*(?:(["'])(.+?)\1|([^\s'"]+?))\s*;?\s*$/)
|
|
{
|
|
my $end_marker = quotemeta(defined($1) ? $2 : $3);
|
|
|
|
# Scan until we find $end_marker alone on a line.
|
|
my @tmaplines;
|
|
while (1) {
|
|
$self->{lastline} = readline($self->{FH});
|
|
$self->death("Error: Unterminated TYPEMAP section") if not defined $self->{lastline};
|
|
last if $self->{lastline} =~ /^$end_marker\s*$/;
|
|
push @tmaplines, $self->{lastline};
|
|
}
|
|
|
|
my $tmap = ExtUtils::Typemaps->new(
|
|
string => join("", @tmaplines),
|
|
lineno_offset => 1 + ($self->current_line_number() || 0),
|
|
fake_filename => $self->{filename},
|
|
);
|
|
$self->{typemap}->merge(typemap => $tmap, replace => 1);
|
|
|
|
$self->{lastline} = "";
|
|
}
|
|
}
|
|
|
|
# Read next xsub into @{ $self->{line} } from ($lastline, readline($self->{FH})).
|
|
sub fetch_para {
|
|
my $self = shift;
|
|
|
|
# parse paragraph
|
|
$self->death("Error: Unterminated '#if/#ifdef/#ifndef'")
|
|
if !defined $self->{lastline} && $self->{XSStack}->[-1]{type} eq 'if';
|
|
@{ $self->{line} } = ();
|
|
@{ $self->{line_no} } = ();
|
|
return $self->PopFile() if not defined $self->{lastline}; # EOF
|
|
|
|
if ($self->{lastline} =~
|
|
/^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/)
|
|
{
|
|
$self->_process_module_xs_line($1, $2, $3);
|
|
}
|
|
|
|
for (;;) {
|
|
$self->_maybe_skip_pod;
|
|
|
|
$self->_maybe_parse_typemap_block;
|
|
|
|
if ($self->{lastline} !~ /^\s*#/ # not a CPP directive
|
|
# 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)
|
|
|| $self->{lastline} =~ /^\#[ \t]*
|
|
(?:
|
|
(?:if|ifn?def|elif|else|endif|
|
|
define|undef|pragma|error|
|
|
warning|line\s+\d+|ident)
|
|
\b
|
|
| (?:include(?:_next)?|import)
|
|
\s* ["<] .* [>"]
|
|
)
|
|
/x
|
|
)
|
|
{
|
|
last if $self->{lastline} =~ /^\S/ && @{ $self->{line} } && $self->{line}->[-1] eq "";
|
|
push(@{ $self->{line} }, $self->{lastline});
|
|
push(@{ $self->{line_no} }, $self->{lastline_no});
|
|
}
|
|
|
|
# Read next line and continuation lines
|
|
last unless defined($self->{lastline} = readline($self->{FH}));
|
|
$self->{lastline_no} = $.;
|
|
my $tmp_line;
|
|
$self->{lastline} .= $tmp_line
|
|
while ($self->{lastline} =~ /\\$/ && defined($tmp_line = readline($self->{FH})));
|
|
|
|
chomp $self->{lastline};
|
|
$self->{lastline} =~ s/^\s+$//;
|
|
}
|
|
|
|
# Nuke trailing "line" entries until there's one that's not empty
|
|
pop(@{ $self->{line} }), pop(@{ $self->{line_no} })
|
|
while @{ $self->{line} } && $self->{line}->[-1] eq "";
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub output_init {
|
|
my $self = shift;
|
|
my $argsref = shift;
|
|
|
|
my ($type, $num, $var, $init, $printed_name)
|
|
= @{$argsref}{qw(type num var init printed_name)};
|
|
|
|
# local assign for efficiently passing in to eval_input_typemap_code
|
|
local $argsref->{arg} = $num
|
|
? "ST(" . ($num-1) . ")"
|
|
: "/* not a parameter */";
|
|
|
|
if ( $init =~ /^=/ ) {
|
|
if ($printed_name) {
|
|
$self->eval_input_typemap_code(qq/print " $init\\n"/, $argsref);
|
|
}
|
|
else {
|
|
$self->eval_input_typemap_code(qq/print "\\t$var $init\\n"/, $argsref);
|
|
}
|
|
}
|
|
else {
|
|
if ( $init =~ s/^\+// && $num ) {
|
|
$self->generate_init( {
|
|
type => $type,
|
|
num => $num,
|
|
var => $var,
|
|
printed_name => $printed_name,
|
|
} );
|
|
}
|
|
elsif ($printed_name) {
|
|
print ";\n";
|
|
$init =~ s/^;//;
|
|
}
|
|
else {
|
|
$self->eval_input_typemap_code(qq/print "\\t$var;\\n"/, $argsref);
|
|
$init =~ s/^;//;
|
|
}
|
|
$self->{deferred}
|
|
.= $self->eval_input_typemap_code(qq/"\\n\\t$init\\n"/, $argsref);
|
|
}
|
|
}
|
|
|
|
sub generate_init {
|
|
my $self = shift;
|
|
my $argsref = shift;
|
|
|
|
my ($type, $num, $var, $printed_name)
|
|
= @{$argsref}{qw(type num var printed_name)};
|
|
|
|
my $argoff = $num - 1;
|
|
my $arg = "ST($argoff)";
|
|
|
|
my $typemaps = $self->{typemap};
|
|
|
|
$type = ExtUtils::Typemaps::tidy_type($type);
|
|
if (not $typemaps->get_typemap(ctype => $type)) {
|
|
$self->report_typemap_failure($typemaps, $type);
|
|
return;
|
|
}
|
|
|
|
(my $ntype = $type) =~ s/\s*\*/Ptr/g;
|
|
(my $subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//;
|
|
|
|
my $typem = $typemaps->get_typemap(ctype => $type);
|
|
my $xstype = $typem->xstype;
|
|
#this is an optimization from perl 5.0 alpha 6, class check is skipped
|
|
#T_REF_IV_REF is missing since it has no untyped analog at the moment
|
|
$xstype =~ s/OBJ$/REF/ || $xstype =~ s/^T_REF_IV_PTR$/T_PTRREF/
|
|
if $self->{func_name} =~ /DESTROY$/;
|
|
if ($xstype eq 'T_PV' and exists $self->{lengthof}->{$var}) {
|
|
print "\t$var" unless $printed_name;
|
|
print " = ($type)SvPV($arg, STRLEN_length_of_$var);\n";
|
|
die "default value not supported with length(NAME) supplied"
|
|
if defined $self->{defaults}->{$var};
|
|
return;
|
|
}
|
|
$type =~ tr/:/_/ unless $self->{RetainCplusplusHierarchicalTypes};
|
|
|
|
my $inputmap = $typemaps->get_inputmap(xstype => $xstype);
|
|
if (not defined $inputmap) {
|
|
$self->blurt("Error: No INPUT definition for type '$type', typekind '" . $type->xstype . "' found");
|
|
return;
|
|
}
|
|
|
|
my $expr = $inputmap->cleaned_code;
|
|
# Note: This gruesome bit either needs heavy rethinking or documentation. I vote for the former. --Steffen
|
|
if ($expr =~ /DO_ARRAY_ELEM/) {
|
|
my $subtypemap = $typemaps->get_typemap(ctype => $subtype);
|
|
if (not $subtypemap) {
|
|
$self->report_typemap_failure($typemaps, $subtype);
|
|
return;
|
|
}
|
|
|
|
my $subinputmap = $typemaps->get_inputmap(xstype => $subtypemap->xstype);
|
|
if (not $subinputmap) {
|
|
$self->blurt("Error: No INPUT definition for type '$subtype', typekind '" . $subtypemap->xstype . "' found");
|
|
return;
|
|
}
|
|
|
|
my $subexpr = $subinputmap->cleaned_code;
|
|
$subexpr =~ s/\$type/\$subtype/g;
|
|
$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
|
|
$self->{ScopeThisXSUB} = 1;
|
|
}
|
|
|
|
my $eval_vars = {
|
|
var => $var,
|
|
printed_name => $printed_name,
|
|
type => $type,
|
|
ntype => $ntype,
|
|
subtype => $subtype,
|
|
num => $num,
|
|
arg => $arg,
|
|
argoff => $argoff,
|
|
};
|
|
|
|
if (defined($self->{defaults}->{$var})) {
|
|
$expr =~ s/(\t+)/$1 /g;
|
|
$expr =~ s/ /\t/g;
|
|
if ($printed_name) {
|
|
print ";\n";
|
|
}
|
|
else {
|
|
$self->eval_input_typemap_code(qq/print "\\t$var;\\n"/, $eval_vars);
|
|
}
|
|
if ($self->{defaults}->{$var} eq 'NO_INIT') {
|
|
$self->{deferred} .= $self->eval_input_typemap_code(
|
|
qq/"\\n\\tif (items >= $num) {\\n$expr;\\n\\t}\\n"/,
|
|
$eval_vars
|
|
);
|
|
}
|
|
else {
|
|
$self->{deferred} .= $self->eval_input_typemap_code(
|
|
qq/"\\n\\tif (items < $num)\\n\\t $var = $self->{defaults}->{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/,
|
|
$eval_vars
|
|
);
|
|
}
|
|
}
|
|
elsif ($self->{ScopeThisXSUB} or $expr !~ /^\s*\$var =/) {
|
|
if ($printed_name) {
|
|
print ";\n";
|
|
}
|
|
else {
|
|
$self->eval_input_typemap_code(qq/print "\\t$var;\\n"/, $eval_vars);
|
|
}
|
|
$self->{deferred}
|
|
.= $self->eval_input_typemap_code(qq/"\\n$expr;\\n"/, $eval_vars);
|
|
}
|
|
else {
|
|
die "panic: do not know how to handle this branch for function pointers"
|
|
if $printed_name;
|
|
$self->eval_input_typemap_code(qq/print "$expr;\\n"/, $eval_vars);
|
|
}
|
|
}
|
|
|
|
sub generate_output {
|
|
my $self = shift;
|
|
my $argsref = shift;
|
|
my ($type, $num, $var, $do_setmagic, $do_push)
|
|
= @{$argsref}{qw(type num var do_setmagic do_push)};
|
|
|
|
my $arg = "ST(" . ($num - ($num != 0)) . ")";
|
|
|
|
my $typemaps = $self->{typemap};
|
|
|
|
$type = ExtUtils::Typemaps::tidy_type($type);
|
|
local $argsref->{type} = $type;
|
|
|
|
if ($type =~ /^array\(([^,]*),(.*)\)/) {
|
|
print "\t$arg = sv_newmortal();\n";
|
|
print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1));\n";
|
|
print "\tSvSETMAGIC($arg);\n" if $do_setmagic;
|
|
}
|
|
else {
|
|
my $typemap = $typemaps->get_typemap(ctype => $type);
|
|
if (not $typemap) {
|
|
$self->report_typemap_failure($typemaps, $type);
|
|
return;
|
|
}
|
|
|
|
my $outputmap = $typemaps->get_outputmap(xstype => $typemap->xstype);
|
|
if (not $outputmap) {
|
|
$self->blurt("Error: No OUTPUT definition for type '$type', typekind '" . $typemap->xstype . "' found");
|
|
return;
|
|
}
|
|
|
|
(my $ntype = $type) =~ s/\s*\*/Ptr/g;
|
|
$ntype =~ s/\(\)//g;
|
|
(my $subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//;
|
|
|
|
my $eval_vars = {%$argsref, subtype => $subtype, ntype => $ntype, arg => $arg};
|
|
my $expr = $outputmap->cleaned_code;
|
|
if ($expr =~ /DO_ARRAY_ELEM/) {
|
|
my $subtypemap = $typemaps->get_typemap(ctype => $subtype);
|
|
if (not $subtypemap) {
|
|
$self->report_typemap_failure($typemaps, $subtype);
|
|
return;
|
|
}
|
|
|
|
my $suboutputmap = $typemaps->get_outputmap(xstype => $subtypemap->xstype);
|
|
if (not $suboutputmap) {
|
|
$self->blurt("Error: No OUTPUT definition for type '$subtype', typekind '" . $subtypemap->xstype . "' found");
|
|
return;
|
|
}
|
|
|
|
my $subexpr = $suboutputmap->cleaned_code;
|
|
$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/;
|
|
$self->eval_output_typemap_code("print qq\a$expr\a", $eval_vars);
|
|
print "\t\tSvSETMAGIC(ST(ix_$var));\n" if $do_setmagic;
|
|
}
|
|
elsif ($var eq 'RETVAL') {
|
|
my $orig_arg = $arg;
|
|
my $indent;
|
|
my $use_RETVALSV = 1;
|
|
my $do_mortal = 0;
|
|
my $do_copy_tmp = 1;
|
|
my $pre_expr;
|
|
local $eval_vars->{arg} = $arg = 'RETVALSV';
|
|
my $evalexpr = $self->eval_output_typemap_code("qq\a$expr\a", $eval_vars);
|
|
|
|
if ($expr =~ /^\t\Q$arg\E = new/) {
|
|
# We expect that $arg has refcnt 1, so we need to
|
|
# mortalize it.
|
|
$do_mortal = 1;
|
|
}
|
|
# If RETVAL is immortal, don't mortalize it. This code is not perfect:
|
|
# It won't detect a func or expression that only returns immortals, for
|
|
# example, this RE must be tried before next elsif.
|
|
elsif ($evalexpr =~ /^\t\Q$arg\E\s*=\s*(boolSV\(|(&PL_sv_yes|&PL_sv_no|&PL_sv_undef)\s*;)/) {
|
|
$do_copy_tmp = 0; #$arg will be a ST(X), no SV* RETVAL, no RETVALSV
|
|
$use_RETVALSV = 0;
|
|
}
|
|
elsif ($evalexpr =~ /^\s*\Q$arg\E\s*=/) {
|
|
# We expect that $arg has refcnt >=1, so we need
|
|
# to mortalize it!
|
|
$use_RETVALSV = 0 if $ntype eq "SVPtr";#reuse SV* RETVAL vs open new block
|
|
$do_mortal = 1;
|
|
}
|
|
else {
|
|
# Just hope that the entry would safely write it
|
|
# over an already mortalized value. By
|
|
# coincidence, something like $arg = &PL_sv_undef
|
|
# works too, but should be caught above.
|
|
$pre_expr = "RETVALSV = sv_newmortal();\n";
|
|
# new mortals don't have set magic
|
|
$do_setmagic = 0;
|
|
}
|
|
if($use_RETVALSV) {
|
|
print "\t{\n\t SV * RETVALSV;\n";
|
|
$indent = "\t ";
|
|
} else {
|
|
$indent = "\t";
|
|
}
|
|
print $indent.$pre_expr if $pre_expr;
|
|
|
|
if($use_RETVALSV) {
|
|
#take control of 1 layer of indent, may or may not indent more
|
|
$evalexpr =~ s/^(\t| )/$indent/gm;
|
|
#"\t \t" doesn't draw right in some IDEs
|
|
#break down all \t into spaces
|
|
$evalexpr =~ s/\t/ /g;
|
|
#rebuild back into \t'es, \t==8 spaces, indent==4 spaces
|
|
$evalexpr =~ s/ /\t/g;
|
|
}
|
|
else {
|
|
if($do_mortal || $do_setmagic) {
|
|
#typemap entry evaled with RETVALSV, if we aren't using RETVALSV replace
|
|
$evalexpr =~ s/RETVALSV/RETVAL/g; #all uses with RETVAL for prettier code
|
|
}
|
|
else { #if no extra boilerplate (no mortal, no set magic) is needed
|
|
#after $evalexport, get rid of RETVALSV's visual cluter and change
|
|
$evalexpr =~ s/RETVALSV/$orig_arg/g;#the lvalue to ST(X)
|
|
}
|
|
}
|
|
#stop " RETVAL = RETVAL;" for SVPtr type
|
|
print $evalexpr if $evalexpr !~ /^\s*RETVAL = RETVAL;$/;
|
|
print $indent.'RETVAL'.($use_RETVALSV ? 'SV':'')
|
|
.' = sv_2mortal(RETVAL'.($use_RETVALSV ? 'SV':'').");\n" if $do_mortal;
|
|
print $indent.'SvSETMAGIC(RETVAL'.($use_RETVALSV ? 'SV':'').");\n" if $do_setmagic;
|
|
#dont do "RETVALSV = boolSV(RETVAL); ST(0) = RETVALSV;", it is visual clutter
|
|
print $indent."$orig_arg = RETVAL".($use_RETVALSV ? 'SV':'').";\n"
|
|
if $do_mortal || $do_setmagic || $do_copy_tmp;
|
|
print "\t}\n" if $use_RETVALSV;
|
|
}
|
|
elsif ($do_push) {
|
|
print "\tPUSHs(sv_newmortal());\n";
|
|
local $eval_vars->{arg} = "ST($num)";
|
|
$self->eval_output_typemap_code("print qq\a$expr\a", $eval_vars);
|
|
print "\tSvSETMAGIC($arg);\n" if $do_setmagic;
|
|
}
|
|
elsif ($arg =~ /^ST\(\d+\)$/) {
|
|
$self->eval_output_typemap_code("print qq\a$expr\a", $eval_vars);
|
|
print "\tSvSETMAGIC($arg);\n" if $do_setmagic;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
# Just delegates to a clean package.
|
|
# Shim to evaluate Perl code in the right variable context
|
|
# for typemap code (having things such as $ALIAS set up).
|
|
sub eval_output_typemap_code {
|
|
my ($self, $code, $other) = @_;
|
|
return ExtUtils::ParseXS::Eval::eval_output_typemap_code($self, $code, $other);
|
|
}
|
|
|
|
sub eval_input_typemap_code {
|
|
my ($self, $code, $other) = @_;
|
|
return ExtUtils::ParseXS::Eval::eval_input_typemap_code($self, $code, $other);
|
|
}
|
|
|
|
1;
|
|
|
|
# vim: ts=2 sw=2 et:
|