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dump.c
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dump.c
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/* dump.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
* 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
/*
* 'You have talked long in your sleep, Frodo,' said Gandalf gently, 'and
* it has not been hard for me to read your mind and memory.'
*
* [p.220 of _The Lord of the Rings_, II/i: "Many Meetings"]
*/
/* This file contains utility routines to dump the contents of SV and OP
* structures, as used by command-line options like -Dt and -Dx, and
* by Devel::Peek.
*
* It also holds the debugging version of the runops function.
*/
#include "EXTERN.h"
#define PERL_IN_DUMP_C
#include "perl.h"
#include "regcomp.h"
#include "proto.h"
static const char* const svtypenames[SVt_LAST] = {
"NULL",
"BIND",
"IV",
"NV",
"PV",
"PVIV",
"PVNV",
"PVMG",
"REGEXP",
"PVGV",
"PVLV",
"PVAV",
"PVHV",
"PVCV",
"PVFM",
"PVIO"
};
static const char* const svshorttypenames[SVt_LAST] = {
"UNDEF",
"BIND",
"IV",
"NV",
"PV",
"PVIV",
"PVNV",
"PVMG",
"REGEXP",
"GV",
"PVLV",
"AV",
"HV",
"CV",
"FM",
"IO"
};
struct flag_to_name {
U32 flag;
const char *name;
};
static void
S_append_flags(pTHX_ SV *sv, U32 flags, const struct flag_to_name *start,
const struct flag_to_name *const end)
{
do {
if (flags & start->flag)
sv_catpv(sv, start->name);
} while (++start < end);
}
#define append_flags(sv, f, flags) \
S_append_flags(aTHX_ (sv), (f), (flags), C_ARRAY_END(flags))
#define Sequence PL_op_sequence
void
Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
{
va_list args;
PERL_ARGS_ASSERT_DUMP_INDENT;
va_start(args, pat);
dump_vindent(level, file, pat, &args);
va_end(args);
}
void
Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
{
dVAR;
PERL_ARGS_ASSERT_DUMP_VINDENT;
PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
PerlIO_vprintf(file, pat, *args);
}
void
Perl_dump_all(pTHX)
{
dump_all_perl(FALSE);
}
void
Perl_dump_all_perl(pTHX_ bool justperl)
{
dVAR;
PerlIO_setlinebuf(Perl_debug_log);
if (PL_main_root)
op_dump(PL_main_root);
dump_packsubs_perl(PL_defstash, justperl);
}
void
Perl_dump_packsubs(pTHX_ const HV *stash)
{
PERL_ARGS_ASSERT_DUMP_PACKSUBS;
dump_packsubs_perl(stash, FALSE);
}
void
Perl_dump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
{
dVAR;
I32 i;
PERL_ARGS_ASSERT_DUMP_PACKSUBS_PERL;
if (!HvARRAY(stash))
return;
for (i = 0; i <= (I32) HvMAX(stash); i++) {
const HE *entry;
for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
const GV * const gv = (const GV *)HeVAL(entry);
if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
continue;
if (GvCVu(gv))
dump_sub_perl(gv, justperl);
if (GvFORM(gv))
dump_form(gv);
if (HeKEY(entry)[HeKLEN(entry)-1] == ':') {
const HV * const hv = GvHV(gv);
if (hv && (hv != PL_defstash))
dump_packsubs_perl(hv, justperl); /* nested package */
}
}
}
}
void
Perl_dump_sub(pTHX_ const GV *gv)
{
PERL_ARGS_ASSERT_DUMP_SUB;
dump_sub_perl(gv, FALSE);
}
void
Perl_dump_sub_perl(pTHX_ const GV *gv, bool justperl)
{
SV * sv;
PERL_ARGS_ASSERT_DUMP_SUB_PERL;
if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
return;
sv = sv_newmortal();
gv_fullname3(sv, gv, NULL);
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nSUB %s = ", SvPVX_const(sv));
if (CvISXSUB(GvCV(gv)))
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "(xsub 0x%"UVxf" %d)\n",
PTR2UV(CvXSUB(GvCV(gv))),
(int)CvXSUBANY(GvCV(gv)).any_i32);
else if (CvROOT(GvCV(gv)))
op_dump(CvROOT(GvCV(gv)));
else
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
}
void
Perl_dump_form(pTHX_ const GV *gv)
{
SV * const sv = sv_newmortal();
PERL_ARGS_ASSERT_DUMP_FORM;
gv_fullname3(sv, gv, NULL);
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nFORMAT %s = ", SvPVX_const(sv));
if (CvROOT(GvFORM(gv)))
op_dump(CvROOT(GvFORM(gv)));
else
Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
}
void
Perl_dump_eval(pTHX)
{
dVAR;
op_dump(PL_eval_root);
}
/*
=for apidoc pv_escape
Escapes at most the first "count" chars of pv and puts the results into
dsv such that the size of the escaped string will not exceed "max" chars
and will not contain any incomplete escape sequences.
If flags contains PERL_PV_ESCAPE_QUOTE then any double quotes in the string
will also be escaped.
Normally the SV will be cleared before the escaped string is prepared,
but when PERL_PV_ESCAPE_NOCLEAR is set this will not occur.
If PERL_PV_ESCAPE_UNI is set then the input string is treated as Unicode,
if PERL_PV_ESCAPE_UNI_DETECT is set then the input string is scanned
using C<is_utf8_string()> to determine if it is Unicode.
If PERL_PV_ESCAPE_ALL is set then all input chars will be output
using C<\x01F1> style escapes, otherwise if PERL_PV_ESCAPE_NONASCII is set, only
chars above 127 will be escaped using this style; otherwise, only chars above
255 will be so escaped; other non printable chars will use octal or
common escaped patterns like C<\n>. Otherwise, if PERL_PV_ESCAPE_NOBACKSLASH
then all chars below 255 will be treated as printable and
will be output as literals.
If PERL_PV_ESCAPE_FIRSTCHAR is set then only the first char of the
string will be escaped, regardless of max. If the output is to be in hex,
then it will be returned as a plain hex
sequence. Thus the output will either be a single char,
an octal escape sequence, a special escape like C<\n> or a hex value.
If PERL_PV_ESCAPE_RE is set then the escape char used will be a '%' and
not a '\\'. This is because regexes very often contain backslashed
sequences, whereas '%' is not a particularly common character in patterns.
Returns a pointer to the escaped text as held by dsv.
=cut
*/
#define PV_ESCAPE_OCTBUFSIZE 32
char *
Perl_pv_escape( pTHX_ SV *dsv, char const * const str,
const STRLEN count, const STRLEN max,
STRLEN * const escaped, const U32 flags )
{
const char esc = (flags & PERL_PV_ESCAPE_RE) ? '%' : '\\';
const char dq = (flags & PERL_PV_ESCAPE_QUOTE) ? '"' : esc;
char octbuf[PV_ESCAPE_OCTBUFSIZE] = "%123456789ABCDF";
STRLEN wrote = 0; /* chars written so far */
STRLEN chsize = 0; /* size of data to be written */
STRLEN readsize = 1; /* size of data just read */
bool isuni= flags & PERL_PV_ESCAPE_UNI ? 1 : 0; /* is this Unicode */
const char *pv = str;
const char * const end = pv + count; /* end of string */
octbuf[0] = esc;
PERL_ARGS_ASSERT_PV_ESCAPE;
if (!(flags & PERL_PV_ESCAPE_NOCLEAR)) {
/* This won't alter the UTF-8 flag */
sv_setpvs(dsv, "");
}
if ((flags & PERL_PV_ESCAPE_UNI_DETECT) && is_utf8_string((U8*)pv, count))
isuni = 1;
for ( ; (pv < end && (!max || (wrote < max))) ; pv += readsize ) {
const UV u= (isuni) ? utf8_to_uvchr((U8*)pv, &readsize) : (U8)*pv;
const U8 c = (U8)u & 0xFF;
if ( ( u > 255 )
|| (flags & PERL_PV_ESCAPE_ALL)
|| (( u > 127 ) && (flags & PERL_PV_ESCAPE_NONASCII)))
{
if (flags & PERL_PV_ESCAPE_FIRSTCHAR)
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%"UVxf, u);
else
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%cx{%"UVxf"}", esc, u);
} else if (flags & PERL_PV_ESCAPE_NOBACKSLASH) {
chsize = 1;
} else {
if ( (c == dq) || (c == esc) || !isPRINT(c) ) {
chsize = 2;
switch (c) {
case '\\' : /* fallthrough */
case '%' : if ( c == esc ) {
octbuf[1] = esc;
} else {
chsize = 1;
}
break;
case '\v' : octbuf[1] = 'v'; break;
case '\t' : octbuf[1] = 't'; break;
case '\r' : octbuf[1] = 'r'; break;
case '\n' : octbuf[1] = 'n'; break;
case '\f' : octbuf[1] = 'f'; break;
case '"' :
if ( dq == '"' )
octbuf[1] = '"';
else
chsize = 1;
break;
default:
if ( (pv+readsize < end) && isDIGIT((U8)*(pv+readsize)) )
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%c%03o", esc, c);
else
chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
"%c%o", esc, c);
}
} else {
chsize = 1;
}
}
if ( max && (wrote + chsize > max) ) {
break;
} else if (chsize > 1) {
sv_catpvn(dsv, octbuf, chsize);
wrote += chsize;
} else {
/* If PERL_PV_ESCAPE_NOBACKSLASH is set then bytes in the range
128-255 can be appended raw to the dsv. If dsv happens to be
UTF-8 then we need catpvf to upgrade them for us.
Or add a new API call sv_catpvc(). Think about that name, and
how to keep it clear that it's unlike the s of catpvs, which is
really an array octets, not a string. */
Perl_sv_catpvf( aTHX_ dsv, "%c", c);
wrote++;
}
if ( flags & PERL_PV_ESCAPE_FIRSTCHAR )
break;
}
if (escaped != NULL)
*escaped= pv - str;
return SvPVX(dsv);
}
/*
=for apidoc pv_pretty
Converts a string into something presentable, handling escaping via
pv_escape() and supporting quoting and ellipses.
If the PERL_PV_PRETTY_QUOTE flag is set then the result will be
double quoted with any double quotes in the string escaped. Otherwise
if the PERL_PV_PRETTY_LTGT flag is set then the result be wrapped in
angle brackets.
If the PERL_PV_PRETTY_ELLIPSES flag is set and not all characters in
string were output then an ellipsis C<...> will be appended to the
string. Note that this happens AFTER it has been quoted.
If start_color is non-null then it will be inserted after the opening
quote (if there is one) but before the escaped text. If end_color
is non-null then it will be inserted after the escaped text but before
any quotes or ellipses.
Returns a pointer to the prettified text as held by dsv.
=cut
*/
char *
Perl_pv_pretty( pTHX_ SV *dsv, char const * const str, const STRLEN count,
const STRLEN max, char const * const start_color, char const * const end_color,
const U32 flags )
{
const U8 dq = (flags & PERL_PV_PRETTY_QUOTE) ? '"' : '%';
STRLEN escaped;
PERL_ARGS_ASSERT_PV_PRETTY;
if (!(flags & PERL_PV_PRETTY_NOCLEAR)) {
/* This won't alter the UTF-8 flag */
sv_setpvs(dsv, "");
}
if ( dq == '"' )
sv_catpvs(dsv, "\"");
else if ( flags & PERL_PV_PRETTY_LTGT )
sv_catpvs(dsv, "<");
if ( start_color != NULL )
sv_catpv(dsv, start_color);
pv_escape( dsv, str, count, max, &escaped, flags | PERL_PV_ESCAPE_NOCLEAR );
if ( end_color != NULL )
sv_catpv(dsv, end_color);
if ( dq == '"' )
sv_catpvs( dsv, "\"");
else if ( flags & PERL_PV_PRETTY_LTGT )
sv_catpvs(dsv, ">");
if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
sv_catpvs(dsv, "...");
return SvPVX(dsv);
}
/*
=for apidoc pv_display
Similar to
pv_escape(dsv,pv,cur,pvlim,PERL_PV_ESCAPE_QUOTE);
except that an additional "\0" will be appended to the string when
len > cur and pv[cur] is "\0".
Note that the final string may be up to 7 chars longer than pvlim.
=cut
*/
char *
Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
{
PERL_ARGS_ASSERT_PV_DISPLAY;
pv_pretty( dsv, pv, cur, pvlim, NULL, NULL, PERL_PV_PRETTY_DUMP);
if (len > cur && pv[cur] == '\0')
sv_catpvs( dsv, "\\0");
return SvPVX(dsv);
}
char *
Perl_sv_peek(pTHX_ SV *sv)
{
dVAR;
SV * const t = sv_newmortal();
int unref = 0;
U32 type;
sv_setpvs(t, "");
retry:
if (!sv) {
sv_catpv(t, "VOID");
goto finish;
}
else if (sv == (const SV *)0x55555555 || SvTYPE(sv) == 'U') {
sv_catpv(t, "WILD");
goto finish;
}
else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
if (sv == &PL_sv_undef) {
sv_catpv(t, "SV_UNDEF");
if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
SvREADONLY(sv))
goto finish;
}
else if (sv == &PL_sv_no) {
sv_catpv(t, "SV_NO");
if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
SVp_POK|SVp_NOK)) &&
SvCUR(sv) == 0 &&
SvNVX(sv) == 0.0)
goto finish;
}
else if (sv == &PL_sv_yes) {
sv_catpv(t, "SV_YES");
if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
SVp_POK|SVp_NOK)) &&
SvCUR(sv) == 1 &&
SvPVX_const(sv) && *SvPVX_const(sv) == '1' &&
SvNVX(sv) == 1.0)
goto finish;
}
else {
sv_catpv(t, "SV_PLACEHOLDER");
if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
SVs_GMG|SVs_SMG|SVs_RMG)) &&
SvREADONLY(sv))
goto finish;
}
sv_catpv(t, ":");
}
else if (SvREFCNT(sv) == 0) {
sv_catpv(t, "(");
unref++;
}
else if (DEBUG_R_TEST_) {
int is_tmp = 0;
I32 ix;
/* is this SV on the tmps stack? */
for (ix=PL_tmps_ix; ix>=0; ix--) {
if (PL_tmps_stack[ix] == sv) {
is_tmp = 1;
break;
}
}
if (SvREFCNT(sv) > 1)
Perl_sv_catpvf(aTHX_ t, "<%"UVuf"%s>", (UV)SvREFCNT(sv),
is_tmp ? "T" : "");
else if (is_tmp)
sv_catpv(t, "<T>");
}
if (SvROK(sv)) {
sv_catpv(t, "\\");
if (SvCUR(t) + unref > 10) {
SvCUR_set(t, unref + 3);
*SvEND(t) = '\0';
sv_catpv(t, "...");
goto finish;
}
sv = SvRV(sv);
goto retry;
}
type = SvTYPE(sv);
if (type == SVt_PVCV) {
Perl_sv_catpvf(aTHX_ t, "CV(%s)", CvGV(sv) ? GvNAME(CvGV(sv)) : "");
goto finish;
} else if (type < SVt_LAST) {
sv_catpv(t, svshorttypenames[type]);
if (type == SVt_NULL)
goto finish;
} else {
sv_catpv(t, "FREED");
goto finish;
}
if (SvPOKp(sv)) {
if (!SvPVX_const(sv))
sv_catpv(t, "(null)");
else {
SV * const tmp = newSVpvs("");
sv_catpv(t, "(");
if (SvOOK(sv)) {
STRLEN delta;
SvOOK_offset(sv, delta);
Perl_sv_catpvf(aTHX_ t, "[%s]", pv_display(tmp, SvPVX_const(sv)-delta, delta, 0, 127));
}
Perl_sv_catpvf(aTHX_ t, "%s)", pv_display(tmp, SvPVX_const(sv), SvCUR(sv), SvLEN(sv), 127));
if (SvUTF8(sv))
Perl_sv_catpvf(aTHX_ t, " [UTF8 \"%s\"]",
sv_uni_display(tmp, sv, 6 * SvCUR(sv),
UNI_DISPLAY_QQ));
SvREFCNT_dec(tmp);
}
}
else if (SvNOKp(sv)) {
STORE_NUMERIC_LOCAL_SET_STANDARD();
Perl_sv_catpvf(aTHX_ t, "(%"NVgf")",SvNVX(sv));
RESTORE_NUMERIC_LOCAL();
}
else if (SvIOKp(sv)) {
if (SvIsUV(sv))
Perl_sv_catpvf(aTHX_ t, "(%"UVuf")", (UV)SvUVX(sv));
else
Perl_sv_catpvf(aTHX_ t, "(%"IVdf")", (IV)SvIVX(sv));
}
else
sv_catpv(t, "()");
finish:
while (unref--)
sv_catpv(t, ")");
if (PL_tainting && SvTAINTED(sv))
sv_catpv(t, " [tainted]");
return SvPV_nolen(t);
}
void
Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
{
char ch;
PERL_ARGS_ASSERT_DO_PMOP_DUMP;
if (!pm) {
Perl_dump_indent(aTHX_ level, file, "{}\n");
return;
}
Perl_dump_indent(aTHX_ level, file, "{\n");
level++;
if (pm->op_pmflags & PMf_ONCE)
ch = '?';
else
ch = '/';
if (PM_GETRE(pm))
Perl_dump_indent(aTHX_ level, file, "PMf_PRE %c%s%c%s\n",
ch, RX_PRECOMP(PM_GETRE(pm)), ch,
(pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
else
Perl_dump_indent(aTHX_ level, file, "PMf_PRE (RUNTIME)\n");
if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
Perl_dump_indent(aTHX_ level, file, "PMf_REPL = ");
op_dump(pm->op_pmreplrootu.op_pmreplroot);
}
if (pm->op_code_list) {
Perl_dump_indent(aTHX_ level, file, "CODE_LIST =\n");
do_op_dump(level, file, pm->op_code_list);
}
if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
SV * const tmpsv = pm_description(pm);
Perl_dump_indent(aTHX_ level, file, "PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
SvREFCNT_dec(tmpsv);
}
Perl_dump_indent(aTHX_ level-1, file, "}\n");
}
const struct flag_to_name pmflags_flags_names[] = {
{PMf_CONST, ",CONST"},
{PMf_KEEP, ",KEEP"},
{PMf_GLOBAL, ",GLOBAL"},
{PMf_CONTINUE, ",CONTINUE"},
{PMf_RETAINT, ",RETAINT"},
{PMf_EVAL, ",EVAL"},
{PMf_NONDESTRUCT, ",NONDESTRUCT"},
};
static SV *
S_pm_description(pTHX_ const PMOP *pm)
{
SV * const desc = newSVpvs("");
const REGEXP * const regex = PM_GETRE(pm);
const U32 pmflags = pm->op_pmflags;
PERL_ARGS_ASSERT_PM_DESCRIPTION;
if (pmflags & PMf_ONCE)
sv_catpv(desc, ",ONCE");
#ifdef USE_ITHREADS
if (SvREADONLY(PL_regex_pad[pm->op_pmoffset]))
sv_catpv(desc, ":USED");
#else
if (pmflags & PMf_USED)
sv_catpv(desc, ":USED");
#endif
if (regex) {
if (RX_EXTFLAGS(regex) & RXf_TAINTED)
sv_catpv(desc, ",TAINTED");
if (RX_CHECK_SUBSTR(regex)) {
if (!(RX_EXTFLAGS(regex) & RXf_NOSCAN))
sv_catpv(desc, ",SCANFIRST");
if (RX_EXTFLAGS(regex) & RXf_CHECK_ALL)
sv_catpv(desc, ",ALL");
}
if (RX_EXTFLAGS(regex) & RXf_SKIPWHITE)
sv_catpv(desc, ",SKIPWHITE");
}
append_flags(desc, pmflags, pmflags_flags_names);
return desc;
}
void
Perl_pmop_dump(pTHX_ PMOP *pm)
{
do_pmop_dump(0, Perl_debug_log, pm);
}
/* An op sequencer. We visit the ops in the order they're to execute. */
STATIC void
S_sequence(pTHX_ register const OP *o)
{
dVAR;
const OP *oldop = NULL;
if (!o)
return;
#ifdef PERL_MAD
if (o->op_next == 0)
return;
#endif
/* XXX PL_op_sequence/Sequence isn't threadsafe!! */
if (!Sequence)
Sequence = newHV();
for (; o; o = o->op_next) {
STRLEN len;
SV * op;
const char * key;
if (oldop == o)
break; /* whoops, a loop */
op = newSVuv(PTR2UV(o));
key = SvPV_const(op, len);
if (hv_exists(Sequence, key, len)) {
SvREFCNT_dec(op);
break;
}
switch (o->op_type) {
case OP_STUB:
if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) {
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
break;
}
goto nothin;
case OP_NULL:
#ifdef PERL_MAD
if (o == o->op_next) {
SvREFCNT_dec(op);
return;
}
#endif
if (oldop && o->op_next) {
SvREFCNT_dec(op);
continue;
}
break;
case OP_SCALAR:
case OP_LINESEQ:
case OP_SCOPE:
nothin:
if (oldop && o->op_next) {
SvREFCNT_dec(op);
continue;
}
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
break;
case OP_MAPWHILE:
case OP_GREPWHILE:
case OP_AND:
case OP_OR:
case OP_DOR:
case OP_ANDASSIGN:
case OP_ORASSIGN:
case OP_DORASSIGN:
case OP_COND_EXPR:
case OP_RANGE:
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
sequence_tail(cLOGOPo->op_other);
break;
case OP_ENTERLOOP:
case OP_ENTERITER:
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
sequence_tail(cLOOPo->op_redoop);
sequence_tail(cLOOPo->op_nextop);
sequence_tail(cLOOPo->op_lastop);
break;
case OP_SUBST:
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
sequence_tail(cPMOPo->op_pmstashstartu.op_pmreplstart);
break;
case OP_QR:
case OP_MATCH:
case OP_HELEM:
break;
default:
(void)hv_store(Sequence, key, len, newSVuv(++PL_op_seq), 0);
break;
}
SvREFCNT_dec(op);
oldop = o;
}
}
static void
S_sequence_tail(pTHX_ const OP *o)
{
while (o && (o->op_type == OP_NULL))
o = o->op_next;
sequence(o);
}
STATIC UV
S_sequence_num(pTHX_ const OP *o)
{
dVAR;
SV *op,
**seq;
const char *key;
STRLEN len;
if (!o) return 0;
op = newSVuv(PTR2UV(o));
key = SvPV_const(op, len);
seq = hv_fetch(Sequence, key, len, 0);
return seq ? SvUV(*seq): 0;
}
const struct flag_to_name op_flags_names[] = {
{OPf_KIDS, ",KIDS"},
{OPf_PARENS, ",PARENS"},
{OPf_REF, ",REF"},
{OPf_MOD, ",MOD"},
{OPf_STACKED, ",STACKED"},
{OPf_SPECIAL, ",SPECIAL"}
};
const struct flag_to_name op_trans_names[] = {
{OPpTRANS_FROM_UTF, ",FROM_UTF"},
{OPpTRANS_TO_UTF, ",TO_UTF"},
{OPpTRANS_IDENTICAL, ",IDENTICAL"},
{OPpTRANS_SQUASH, ",SQUASH"},
{OPpTRANS_COMPLEMENT, ",COMPLEMENT"},
{OPpTRANS_GROWS, ",GROWS"},
{OPpTRANS_DELETE, ",DELETE"}
};
const struct flag_to_name op_entersub_names[] = {
{OPpENTERSUB_DB, ",DB"},
{OPpENTERSUB_HASTARG, ",HASTARG"},
{OPpENTERSUB_AMPER, ",AMPER"},
{OPpENTERSUB_NOPAREN, ",NOPAREN"},
{OPpENTERSUB_INARGS, ",INARGS"}
};
const struct flag_to_name op_const_names[] = {
{OPpCONST_NOVER, ",NOVER"},
{OPpCONST_SHORTCIRCUIT, ",SHORTCIRCUIT"},
{OPpCONST_STRICT, ",STRICT"},
{OPpCONST_ENTERED, ",ENTERED"},
{OPpCONST_ARYBASE, ",ARYBASE"},
{OPpCONST_BARE, ",BARE"},
{OPpCONST_WARNING, ",WARNING"}
};
const struct flag_to_name op_sort_names[] = {
{OPpSORT_NUMERIC, ",NUMERIC"},
{OPpSORT_INTEGER, ",INTEGER"},
{OPpSORT_REVERSE, ",REVERSE"},
{OPpSORT_INPLACE, ",INPLACE"},
{OPpSORT_DESCEND, ",DESCEND"},
{OPpSORT_QSORT, ",QSORT"},
{OPpSORT_STABLE, ",STABLE"}
};
const struct flag_to_name op_open_names[] = {
{OPpOPEN_IN_RAW, ",IN_RAW"},
{OPpOPEN_IN_CRLF, ",IN_CRLF"},
{OPpOPEN_OUT_RAW, ",OUT_RAW"},
{OPpOPEN_OUT_CRLF, ",OUT_CRLF"}
};
const struct flag_to_name op_exit_names[] = {
{OPpEXIT_VMSISH, ",EXIT_VMSISH"},
{OPpHUSH_VMSISH, ",HUSH_VMSISH"}
};
#define OP_PRIVATE_ONCE(op, flag, name) \
const struct flag_to_name CAT2(op, _names)[] = { \
{(flag), (name)} \
}
OP_PRIVATE_ONCE(op_aassign, OPpASSIGN_COMMON, ",COMMON");
OP_PRIVATE_ONCE(op_leavesub, OPpREFCOUNTED, ",REFCOUNTED");
OP_PRIVATE_ONCE(op_sassign, OPpASSIGN_BACKWARDS, ",BACKWARDS");
OP_PRIVATE_ONCE(op_repeat, OPpREPEAT_DOLIST, ",DOLIST");
OP_PRIVATE_ONCE(op_reverse, OPpREVERSE_INPLACE, ",INPLACE");
OP_PRIVATE_ONCE(op_rv2cv, OPpLVAL_INTRO, ",INTRO");
OP_PRIVATE_ONCE(op_flip, OPpFLIP_LINENUM, ",LINENUM");
OP_PRIVATE_ONCE(op_gv, OPpEARLY_CV, ",EARLY_CV");
OP_PRIVATE_ONCE(op_list, OPpLIST_GUESSED, ",GUESSED");
OP_PRIVATE_ONCE(op_delete, OPpSLICE, ",SLICE");
OP_PRIVATE_ONCE(op_exists, OPpEXISTS_SUB, ",EXISTS_SUB");
OP_PRIVATE_ONCE(op_die, OPpHUSH_VMSISH, ",HUSH_VMSISH");
struct op_private_by_op {
U16 op_type;
U16 len;
const struct flag_to_name *start;
};
const struct op_private_by_op op_private_names[] = {
{OP_LEAVESUB, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
{OP_LEAVE, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
{OP_LEAVESUBLV, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
{OP_LEAVEWRITE, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
{OP_AASSIGN, C_ARRAY_LENGTH(op_aassign_names), op_aassign_names },
{OP_DIE, C_ARRAY_LENGTH(op_die_names), op_die_names },
{OP_DELETE, C_ARRAY_LENGTH(op_delete_names), op_delete_names },
{OP_EXISTS, C_ARRAY_LENGTH(op_exists_names), op_exists_names },
{OP_EXIT, C_ARRAY_LENGTH(op_exit_names), op_exit_names },
{OP_FLIP, C_ARRAY_LENGTH(op_flip_names), op_flip_names },
{OP_FLOP, C_ARRAY_LENGTH(op_flip_names), op_flip_names },
{OP_GV, C_ARRAY_LENGTH(op_gv_names), op_gv_names },
{OP_LIST, C_ARRAY_LENGTH(op_list_names), op_list_names },
{OP_SASSIGN, C_ARRAY_LENGTH(op_sassign_names), op_sassign_names },
{OP_REPEAT, C_ARRAY_LENGTH(op_repeat_names), op_repeat_names },
{OP_RV2CV, C_ARRAY_LENGTH(op_rv2cv_names), op_rv2cv_names },
{OP_TRANS, C_ARRAY_LENGTH(op_trans_names), op_trans_names },
{OP_CONST, C_ARRAY_LENGTH(op_const_names), op_const_names },
{OP_SORT, C_ARRAY_LENGTH(op_sort_names), op_sort_names },
{OP_OPEN, C_ARRAY_LENGTH(op_open_names), op_open_names },
{OP_BACKTICK, C_ARRAY_LENGTH(op_open_names), op_open_names }
};
static bool
S_op_private_to_names(pTHX_ SV *tmpsv, U32 optype, U32 op_private) {
const struct op_private_by_op *start = op_private_names;
const struct op_private_by_op *const end
= op_private_names + C_ARRAY_LENGTH(op_private_names);
/* This is a linear search, but no worse than the code that it replaced.
It's debugging code - size is more important than speed. */
do {
if (optype == start->op_type) {
S_append_flags(aTHX_ tmpsv, op_private, start->start,
start->start + start->len);
return TRUE;
}
} while (++start < end);
return FALSE;
}
void
Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o)
{
dVAR;
UV seq;
const OPCODE optype = o->op_type;
PERL_ARGS_ASSERT_DO_OP_DUMP;
sequence(o);
Perl_dump_indent(aTHX_ level, file, "{\n");
level++;
seq = sequence_num(o);
if (seq)
PerlIO_printf(file, "%-4"UVuf, seq);
else
PerlIO_printf(file, " ");
PerlIO_printf(file,
"%*sTYPE = %s ===> ",
(int)(PL_dumpindent*level-4), "", OP_NAME(o));
if (o->op_next)
PerlIO_printf(file, seq ? "%"UVuf"\n" : "(%"UVuf")\n",
sequence_num(o->op_next));
else
PerlIO_printf(file, "DONE\n");
if (o->op_targ) {
if (optype == OP_NULL) {
Perl_dump_indent(aTHX_ level, file, " (was %s)\n", PL_op_name[o->op_targ]);
if (o->op_targ == OP_NEXTSTATE) {
if (CopLINE(cCOPo))
Perl_dump_indent(aTHX_ level, file, "LINE = %"UVuf"\n",
(UV)CopLINE(cCOPo));
if (CopSTASHPV(cCOPo))
Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
CopSTASHPV(cCOPo));
if (CopLABEL(cCOPo))
Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
CopLABEL(cCOPo));
}
}
else
Perl_dump_indent(aTHX_ level, file, "TARG = %ld\n", (long)o->op_targ);
}
#ifdef DUMPADDR
Perl_dump_indent(aTHX_ level, file, "ADDR = 0x%"UVxf" => 0x%"UVxf"\n", (UV)o, (UV)o->op_next);
#endif
if (o->op_flags || o->op_latefree || o->op_latefreed || o->op_attached) {
SV * const tmpsv = newSVpvs("");
switch (o->op_flags & OPf_WANT) {
case OPf_WANT_VOID:
sv_catpv(tmpsv, ",VOID");
break;
case OPf_WANT_SCALAR:
sv_catpv(tmpsv, ",SCALAR");
break;
case OPf_WANT_LIST:
sv_catpv(tmpsv, ",LIST");
break;
default:
sv_catpv(tmpsv, ",UNKNOWN");
break;
}
append_flags(tmpsv, o->op_flags, op_flags_names);
if (o->op_latefree)