# This program is free software; you can redistribute and/or modify it
# under the same terms as Perl itself.
-use strict;
-use warnings;
+# Note: we need to keep track of how many use declarations/BEGIN
+# blocks this module uses, so we can avoid printing them when user
+# asks for the BEGIN blocks in her program. Update the comments and
+# the count in concise_specials if you add or delete one. The
+# -MO=Concise counts as use #1.
-use Exporter ();
+use strict; # use #2
+use warnings; # uses #3 and #4, since warnings uses Carp
-our $VERSION = "0.55";
+use Exporter (); # use #5
+
+our $VERSION = "0.57";
our @ISA = qw(Exporter);
our @EXPORT_OK = qw(set_style set_style_standard add_callback
- concise_cv concise_main);
+ concise_subref concise_cv concise_main);
+# use #6
use B qw(class ppname main_start main_root main_cv cstring svref_2object
- SVf_IOK SVf_NOK SVf_POK SVf_IVisUV OPf_KIDS);
+ SVf_IOK SVf_NOK SVf_POK SVf_IVisUV SVf_FAKE OPf_KIDS CVf_ANON);
my %style =
("terse" =>
push @callbacks, @_;
}
-sub concise_cv {
- my ($order, $cvref) = @_;
- my $cv = svref_2object($cvref);
+sub concise_subref {
+ my($order, $subref) = @_;
+ concise_cv_obj($order, svref_2object($subref));
+}
+
+# This should have been called concise_subref, but it was exported
+# under this name in versions before 0.56
+sub concise_cv { concise_subref(@_); }
+
+sub concise_cv_obj {
+ my ($order, $cv) = @_;
$curcv = $cv;
sequence($cv->START);
if ($order eq "exec") {
}
}
+sub concise_specials {
+ my($name, $order, @cv_s) = @_;
+ my $i = 1;
+ if ($name eq "BEGIN") {
+ splice(@cv_s, 0, 7); # skip 7 BEGIN blocks in this file
+ } elsif ($name eq "CHECK") {
+ pop @cv_s; # skip the CHECK block that calls us
+ }
+ for my $cv (@cv_s) {
+ print "$name $i:\n";
+ $i++;
+ concise_cv_obj($order, $cv);
+ }
+}
+
my $start_sym = "\e(0"; # "\cN" sometimes also works
my $end_sym = "\e(B"; # "\cO" respectively
return sub {
if (@args) {
for my $objname (@args) {
- $objname = "main::" . $objname unless $objname =~ /::/;
- print "$objname:\n";
- eval "concise_cv(\$order, \\&$objname)";
- die "concise_cv($order, \\&$objname) failed: $@" if $@;
+ if ($objname eq "BEGIN") {
+ concise_specials("BEGIN", $order,
+ B::begin_av->isa("B::AV") ?
+ B::begin_av->ARRAY : ());
+ } elsif ($objname eq "INIT") {
+ concise_specials("INIT", $order,
+ B::init_av->isa("B::AV") ?
+ B::init_av->ARRAY : ());
+ } elsif ($objname eq "CHECK") {
+ concise_specials("CHECK", $order,
+ B::check_av->isa("B::AV") ?
+ B::check_av->ARRAY : ());
+ } elsif ($objname eq "END") {
+ concise_specials("END", $order,
+ B::end_av->isa("B::AV") ?
+ B::end_av->ARRAY : ());
+ } else {
+ $objname = "main::" . $objname unless $objname =~ /::/;
+ print "$objname:\n";
+ eval "concise_subref(\$order, \\&$objname)";
+ die "concise_subref($order, \\&$objname) failed: $@" if $@;
+ }
}
}
if (!@args or $do_main) {
'LISTOP' => "@", 'PMOP' => "/", 'SVOP' => "\$", 'GVOP' => "*",
'PVOP' => '"', 'LOOP' => "{", 'COP' => ";", 'PADOP' => "#");
-no warnings 'qw'; # "Possible attempt to put comments..."
+no warnings 'qw'; # "Possible attempt to put comments..."; use #7
my @linenoise =
qw'# () sc ( @? 1 $* gv *{ m$ m@ m% m? p/ *$ $ $# & a& pt \\ s\\ rf bl
` *? <> ?? ?/ r/ c/ // qr s/ /c y/ = @= C sC Cp sp df un BM po +1 +I
walk_topdown($kid, $sub, $level + 1);
}
}
- if (class($op) eq "PMOP" and $op->pmreplroot and $ {$op->pmreplroot}
- and $op->pmreplroot->isa("B::OP")) {
- walk_topdown($op->pmreplroot, $sub, $level + 1);
+ if (class($op) eq "PMOP") {
+ my $maybe_root = $op->pmreplroot;
+ if (ref($maybe_root) and $maybe_root->isa("B::OP")) {
+ # It really is the root of the replacement, not something
+ # else stored here for lack of space elsewhere
+ walk_topdown($maybe_root, $sub, $level + 1);
+ }
}
}
$priv{$_}{128} = "LVINTRO"
for ("pos", "substr", "vec", "threadsv", "gvsv", "rv2sv", "rv2hv", "rv2gv",
"rv2av", "rv2arylen", "aelem", "helem", "aslice", "hslice", "padsv",
- "padav", "padhv");
+ "padav", "padhv", "enteriter");
$priv{$_}{64} = "REFC" for ("leave", "leavesub", "leavesublv", "leavewrite");
$priv{"aassign"}{64} = "COMMON";
$priv{"sassign"}{64} = "BKWARD";
@{$priv{$_}}{4,8,128} = ("INARGS","AMPER","NO()") for ("entersub", "rv2cv");
$priv{"gv"}{32} = "EARLYCV";
$priv{"aelem"}{16} = $priv{"helem"}{16} = "LVDEFER";
-$priv{$_}{16} = "OURINTR" for ("gvsv", "rv2sv", "rv2av", "rv2hv", "r2gv");
+$priv{$_}{16} = "OURINTR" for ("gvsv", "rv2sv", "rv2av", "rv2hv", "r2gv",
+ "enteriter");
$priv{$_}{16} = "TARGMY"
for (map(($_,"s$_"),"chop", "chomp"),
map(($_,"i_$_"), "postinc", "postdec", "multiply", "divide", "modulo",
$h{extarg} = $h{targ} = $op->targ;
$h{extarg} = "" unless $h{extarg};
if ($h{name} eq "null" and $h{targ}) {
+ # targ holds the old type
$h{exname} = "ex-" . substr(ppname($h{targ}), 3);
$h{extarg} = "";
+ } elsif ($op->name =~ /^leave(sub(lv)?|write)?$/) {
+ # targ potentially holds a reference count
+ if ($op->private & 64) {
+ my $refs = "ref" . ($h{targ} != 1 ? "s" : "");
+ $h{targarglife} = $h{targarg} = "$h{targ} $refs";
+ }
} elsif ($h{targ}) {
my $padname = (($curcv->PADLIST->ARRAY)[0]->ARRAY)[$h{targ}];
if (defined $padname and class($padname) ne "SPECIAL") {
$h{targarg} = $padname->PVX;
- my $intro = $padname->NVX - $cop_seq_base;
- my $finish = int($padname->IVX) - $cop_seq_base;
- $finish = "end" if $finish == 999999999 - $cop_seq_base;
- $h{targarglife} = "$h{targarg}:$intro,$finish";
+ if ($padname->FLAGS & SVf_FAKE) {
+ my $fake = '';
+ $fake .= 'a' if $padname->IVX & 1; # PAD_FAKELEX_ANON
+ $fake .= 'm' if $padname->IVX & 2; # PAD_FAKELEX_MULTI
+ $fake .= ':' . $padname->NVX if $curcv->CvFLAGS & CVf_ANON;
+ $h{targarglife} = "$h{targarg}:FAKE:$fake";
+ }
+ else {
+ my $intro = $padname->NVX - $cop_seq_base;
+ my $finish = int($padname->IVX) - $cop_seq_base;
+ $finish = "end" if $finish == 999999999 - $cop_seq_base;
+ $h{targarglife} = "$h{targarg}:$intro,$finish";
+ }
} else {
$h{targarglife} = $h{targarg} = "t" . $h{targ};
}
}
my $pmreplroot = $op->pmreplroot;
my $pmreplstart;
- if ($pmreplroot && $$pmreplroot && $pmreplroot->isa("B::GV")) {
+ if (ref($pmreplroot) eq "B::GV") {
# with C<@stash_array = split(/pat/, str);>,
- # *stash_array is stored in pmreplroot.
+ # *stash_array is stored in /pat/'s pmreplroot.
$h{arg} = "($precomp => \@" . $pmreplroot->NAME . ")";
+ } elsif (!ref($pmreplroot) and $pmreplroot) {
+ # same as the last case, except the value is actually a
+ # pad offset for where the GV is kept (this happens under
+ # ithreads)
+ my $gv = (($curcv->PADLIST->ARRAY)[1]->ARRAY)[$pmreplroot];
+ $h{arg} = "($precomp => \@" . $gv->NAME . ")";
} elsif ($ {$op->pmreplstart}) {
undef $lastnext;
$pmreplstart = "replstart->" . seq($op->pmreplstart);
# Remember, this needs to stay the last things in the module.
# Why is this different for MacOS? Does it matter?
-my $cop_seq_mnum = $^O eq 'MacOS' ? 10 : 9;
+my $cop_seq_mnum = $^O eq 'MacOS' ? 12 : 11;
$cop_seq_base = svref_2object(eval 'sub{0;}')->START->cop_seq + $cop_seq_mnum;
1;
conventions :
% perl -MO=Concise -e '$a = $b + 42'
- 8 <@> leave[t1] vKP/REFC ->(end)
+ 8 <@> leave[1 ref] vKP/REFC ->(end)
1 <0> enter ->2
2 <;> nextstate(main 1 -e:1) v ->3
7 <2> sassign vKS/2 ->8
=head1 OPTIONS
Arguments that don't start with a hyphen are taken to be the names of
-subroutines to print the OPs of; if no such functions are specified, the
-main body of the program (outside any subroutines, and not including use'd
-or require'd files) is printed.
+subroutines to print the OPs of; if no such functions are specified,
+the main body of the program (outside any subroutines, and not
+including use'd or require'd files) is printed. Passing C<BEGIN>,
+C<CHECK>, C<INIT>, or C<END> will cause all of the corresponding
+special blocks to be printed.
=over 4
projects / p5sagit/p5-mst-13.2.git / blobdiff