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# Superclass for IDL structure generators
# GPL3
package Parse::Pidl::Base;
use strict;
use warnings;
use Parse::Pidl qw(fatal warning error);
use vars qw($VERSION);
$VERSION = '0.01';
sub indent {
my $self = shift;
$self->{tabs} .= "\t";
}
sub deindent {
my $self = shift;
$self->{tabs} = substr($self->{tabs}, 1);
}
sub pidl {
my ($self, $txt) = @_;
if ($txt) {
if ($txt !~ /^#/) {
$self->{res} .= $self->{tabs};
}
$self->{res} .= $txt;
}
$self->{res} .= "\n";
}
sub pidl_hdr {
my ($self, $txt) = @_;
$self->{res_hdr} .= "$txt\n";
}
sub pidl_both {
my ($self, $txt) = @_;
$self->{res} .= "$txt\n";
$self->{res_hdr} .= "$txt\n";
}
# When the PIDL_DEVELOPER env flag is set, we overwrite $self->pidl()
# and $self->pidl_hdr() to annotate the output with location
# information.
sub pidl_dev_msg {
my $self = shift;
my ($pkg, $file, $line, $sub) = caller(2);
# minimise the path
if ($file =~ m{/pidl/(lib/.+|pidl)$}) {
$file = $1;
}
my $state = $self->{dev_state} // ['uninitialised', 0, ''];
my ($ploc, $pline, $ptabs) = @$state;
my $loc = "$sub $file";
if ($loc ne $ploc or
abs($line - $pline) > 20 or
$self->{tabs} ne $ptabs) {
$self->{dev_state} = [$loc, $line, $self->{tabs}];
return " //<PIDL> $loc:$line";
}
return '';
}
if ($ENV{PIDL_DEVELOPER}) {
undef &pidl;
undef &pidl_hdr;
*Parse::Pidl::Base::pidl = sub {
my ($self, $txt) = @_;
if ($txt) {
if ($txt !~ /^#/) {
$self->{res} .= $self->{tabs};
}
$self->{res} .= $txt;
}
$self->{res} .= $self->pidl_dev_msg;
$self->{res} .= "\n";
};
*Parse::Pidl::Base::pidl_hdr = sub {
my ($self, $txt) = @_;
$txt .= $self->pidl_dev_msg;
$self->{res_hdr} .= "$txt\n";
}
}
1;
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