package B::Terse;
-use B::Concise;
+use strict;
+use B qw(peekop class walkoptree walkoptree_exec walkoptree_slow
+ main_start main_root cstring svref_2object);
+use B::Asmdata qw(@specialsv_name);
+
+sub terse {
+ my ($order, $cvref) = @_;
+ my $cv = svref_2object($cvref);
+ if ($order eq "exec") {
+ walkoptree_exec($cv->START, "terse");
+ } else {
+ walkoptree_slow($cv->ROOT, "terse");
+ }
+}
sub compile {
- my @args = @_;
- $args[0] = "-exec" if $args[0] eq "exec";
- unshift @args, "-terse";
- B::Concise::compile(@args);
+ my $order = @_ ? shift : "";
+ my @options = @_;
+ B::clearsym();
+ if (@options) {
+ return sub {
+ my $objname;
+ foreach $objname (@options) {
+ $objname = "main::$objname" unless $objname =~ /::/;
+ eval "terse(\$order, \\&$objname)";
+ die "terse($order, \\&$objname) failed: $@" if $@;
+ }
+ }
+ } else {
+ if ($order eq "exec") {
+ return sub { walkoptree_exec(main_start, "terse") }
+ } else {
+ return sub { walkoptree_slow(main_root, "terse") }
+ }
+ }
+}
+
+sub indent {
+ my $level = @_ ? shift : 0;
+ return " " x $level;
+}
+
+sub B::OP::terse {
+ my ($op, $level) = @_;
+ my $targ = $op->targ;
+ $targ = ($targ > 0) ? " [$targ]" : "";
+ print indent($level), peekop($op), $targ, "\n";
+}
+
+sub B::SVOP::terse {
+ my ($op, $level) = @_;
+ print indent($level), peekop($op), " ";
+ $op->sv->terse(0);
+}
+
+sub B::PADOP::terse {
+ my ($op, $level) = @_;
+ print indent($level), peekop($op), " ", $op->padix, "\n";
+}
+
+sub B::PMOP::terse {
+ my ($op, $level) = @_;
+ my $precomp = $op->precomp;
+ print indent($level), peekop($op),
+ defined($precomp) ? " /$precomp/\n" : " (regexp not compiled)\n";
+
+}
+
+sub B::PVOP::terse {
+ my ($op, $level) = @_;
+ print indent($level), peekop($op), " ", cstring($op->pv), "\n";
+}
+
+sub B::COP::terse {
+ my ($op, $level) = @_;
+ my $label = $op->label;
+ if ($label) {
+ $label = " label ".cstring($label);
+ }
+ print indent($level), peekop($op), $label || "", "\n";
+}
+
+sub B::PV::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s (0x%lx) %s\n", class($sv), $$sv, cstring($sv->PV);
+}
+
+sub B::AV::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s (0x%lx) FILL %d\n", class($sv), $$sv, $sv->FILL;
+}
+
+sub B::GV::terse {
+ my ($gv, $level) = @_;
+ my $stash = $gv->STASH->NAME;
+ if ($stash eq "main") {
+ $stash = "";
+ } else {
+ $stash = $stash . "::";
+ }
+ print indent($level);
+ printf "%s (0x%lx) *%s%s\n", class($gv), $$gv, $stash, $gv->SAFENAME;
+}
+
+sub B::IV::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s (0x%lx) %d\n", class($sv), $$sv, $sv->IV;
+}
+
+sub B::NV::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s (0x%lx) %s\n", class($sv), $$sv, $sv->NV;
+}
+
+sub B::NULL::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s (0x%lx)\n", class($sv), $$sv;
+}
+
+sub B::SPECIAL::terse {
+ my ($sv, $level) = @_;
+ print indent($level);
+ printf "%s #%d %s\n", class($sv), $$sv, $specialsv_name[$$sv];
}
1;
=head1 SYNOPSIS
- perl -MO=Terse[,OPTIONS] foo.pl
+ perl -MO=Terse[,OPTIONS] foo.pl
=head1 DESCRIPTION
-This version of B::Terse is really just a wrapper that calls B::Concise
-with the B<-terse> option. It is provided for compatibility with old scripts
-(and habits) but using B::Concise directly is now recommended instead.
+See F<ext/B/README>.
=head1 AUTHOR
-The original version of B::Terse was written by Malcolm Beattie,
-C<mbeattie@sable.ox.ac.uk>. This wrapper was written by Stephen McCamant,
-C<smcc@CSUA.Berkeley.EDU>.
+Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>
=cut