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dump.c
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C/C++ Source or Header
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1996-01-28
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9KB
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393 lines
/* dump.c
*
* Copyright (c) 1991-1994, Larry Wall
*
* 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.'"
*/
#include "EXTERN.h"
#include "perl.h"
#ifndef DEBUGGING
void
dump_all()
{
}
#else /* Rest of file is for DEBUGGING */
static void dump();
void
dump_all()
{
#ifdef HAS_SETLINEBUF
setlinebuf(stderr);
#else
setvbuf(stderr, Nullch, _IOLBF, 0);
#endif
if (main_root)
dump_op(main_root);
dump_packsubs(defstash);
}
void
dump_packsubs(stash)
HV* stash;
{
I32 i;
HE *entry;
if (!HvARRAY(stash))
return;
for (i = 0; i <= (I32) HvMAX(stash); i++) {
for (entry = HvARRAY(stash)[i]; entry; entry = entry->hent_next) {
GV *gv = (GV*)entry->hent_val;
HV *hv;
if (GvCV(gv))
dump_sub(gv);
if (GvFORM(gv))
dump_form(gv);
if (entry->hent_key[entry->hent_klen-1] == ':' &&
(hv = GvHV(gv)) && HvNAME(hv) && hv != defstash)
dump_packsubs(hv); /* nested package */
}
}
}
void
dump_sub(gv)
GV* gv;
{
SV *sv = sv_newmortal();
gv_fullname(sv,gv);
dump("\nSUB %s = ", SvPVX(sv));
if (CvXSUB(GvCV(gv)))
dump("(xsub 0x%x %d)\n",
(long)CvXSUB(GvCV(gv)),
CvXSUBANY(GvCV(gv)).any_i32);
else if (CvROOT(GvCV(gv)))
dump_op(CvROOT(GvCV(gv)));
else
dump("<undef>\n");
}
void
dump_form(gv)
GV* gv;
{
SV *sv = sv_newmortal();
gv_fullname(sv,gv);
dump("\nFORMAT %s = ", SvPVX(sv));
if (CvROOT(GvFORM(gv)))
dump_op(CvROOT(GvFORM(gv)));
else
dump("<undef>\n");
}
void
dump_eval()
{
dump_op(eval_root);
}
void
dump_op(op)
register OP *op;
{
SV *tmpsv;
dump("{\n");
if (op->op_seq)
fprintf(stderr, "%-4d", op->op_seq);
else
fprintf(stderr, " ");
dump("TYPE = %s ===> ", op_name[op->op_type]);
if (op->op_next) {
if (op->op_seq)
fprintf(stderr, "%d\n", op->op_next->op_seq);
else
fprintf(stderr, "(%d)\n", op->op_next->op_seq);
}
else
fprintf(stderr, "DONE\n");
dumplvl++;
if (op->op_targ) {
if (op->op_type == OP_NULL)
dump(" (was %s)\n", op_name[op->op_targ]);
else
dump("TARG = %d\n", op->op_targ);
}
#ifdef DUMPADDR
dump("ADDR = 0x%lx => 0x%lx\n",op, op->op_next);
#endif
if (op->op_flags) {
*buf = '\0';
if (op->op_flags & OPf_KNOW) {
if (op->op_flags & OPf_LIST)
(void)strcat(buf,"LIST,");
else
(void)strcat(buf,"SCALAR,");
}
else
(void)strcat(buf,"UNKNOWN,");
if (op->op_flags & OPf_KIDS)
(void)strcat(buf,"KIDS,");
if (op->op_flags & OPf_PARENS)
(void)strcat(buf,"PARENS,");
if (op->op_flags & OPf_STACKED)
(void)strcat(buf,"STACKED,");
if (op->op_flags & OPf_REF)
(void)strcat(buf,"REF,");
if (op->op_flags & OPf_MOD)
(void)strcat(buf,"MOD,");
if (op->op_flags & OPf_SPECIAL)
(void)strcat(buf,"SPECIAL,");
if (*buf)
buf[strlen(buf)-1] = '\0';
dump("FLAGS = (%s)\n",buf);
}
if (op->op_private) {
*buf = '\0';
if (op->op_type == OP_AASSIGN) {
if (op->op_private & OPpASSIGN_COMMON)
(void)strcat(buf,"COMMON,");
}
else if (op->op_type == OP_SASSIGN) {
if (op->op_private & OPpASSIGN_BACKWARDS)
(void)strcat(buf,"BACKWARDS,");
}
else if (op->op_type == OP_TRANS) {
if (op->op_private & OPpTRANS_SQUASH)
(void)strcat(buf,"SQUASH,");
if (op->op_private & OPpTRANS_DELETE)
(void)strcat(buf,"DELETE,");
if (op->op_private & OPpTRANS_COMPLEMENT)
(void)strcat(buf,"COMPLEMENT,");
}
else if (op->op_type == OP_REPEAT) {
if (op->op_private & OPpREPEAT_DOLIST)
(void)strcat(buf,"DOLIST,");
}
else if (op->op_type == OP_ENTERSUB ||
op->op_type == OP_RV2SV ||
op->op_type == OP_RV2AV ||
op->op_type == OP_RV2HV ||
op->op_type == OP_RV2GV ||
op->op_type == OP_AELEM ||
op->op_type == OP_HELEM )
{
if (op->op_private & OPpENTERSUB_AMPER)
(void)strcat(buf,"AMPER,");
if (op->op_private & OPpENTERSUB_DB)
(void)strcat(buf,"DB,");
if (op->op_private & OPpDEREF_AV)
(void)strcat(buf,"AV,");
if (op->op_private & OPpDEREF_HV)
(void)strcat(buf,"HV,");
if (op->op_private & HINT_STRICT_REFS)
(void)strcat(buf,"STRICT_REFS,");
}
else if (op->op_type == OP_CONST) {
if (op->op_private & OPpCONST_BARE)
(void)strcat(buf,"BARE,");
}
else if (op->op_type == OP_FLIP) {
if (op->op_private & OPpFLIP_LINENUM)
(void)strcat(buf,"LINENUM,");
}
else if (op->op_type == OP_FLOP) {
if (op->op_private & OPpFLIP_LINENUM)
(void)strcat(buf,"LINENUM,");
}
if (op->op_flags & OPf_MOD && op->op_private & OPpLVAL_INTRO)
(void)strcat(buf,"INTRO,");
if (*buf) {
buf[strlen(buf)-1] = '\0';
dump("PRIVATE = (%s)\n",buf);
}
}
switch (op->op_type) {
case OP_GVSV:
case OP_GV:
if (cGVOP->op_gv) {
ENTER;
tmpsv = NEWSV(0,0);
SAVEFREESV(tmpsv);
gv_fullname(tmpsv,cGVOP->op_gv);
dump("GV = %s\n", SvPV(tmpsv, na));
LEAVE;
}
else
dump("GV = NULL\n");
break;
case OP_CONST:
dump("SV = %s\n", SvPEEK(cSVOP->op_sv));
break;
case OP_NEXTSTATE:
case OP_DBSTATE:
if (cCOP->cop_line)
dump("LINE = %d\n",cCOP->cop_line);
if (cCOP->cop_label)
dump("LABEL = \"%s\"\n",cCOP->cop_label);
break;
case OP_ENTERLOOP:
dump("REDO ===> ");
if (cLOOP->op_redoop)
fprintf(stderr, "%d\n", cLOOP->op_redoop->op_seq);
else
fprintf(stderr, "DONE\n");
dump("NEXT ===> ");
if (cLOOP->op_nextop)
fprintf(stderr, "%d\n", cLOOP->op_nextop->op_seq);
else
fprintf(stderr, "DONE\n");
dump("LAST ===> ");
if (cLOOP->op_lastop)
fprintf(stderr, "%d\n", cLOOP->op_lastop->op_seq);
else
fprintf(stderr, "DONE\n");
break;
case OP_COND_EXPR:
dump("TRUE ===> ");
if (cCONDOP->op_true)
fprintf(stderr, "%d\n", cCONDOP->op_true->op_seq);
else
fprintf(stderr, "DONE\n");
dump("FALSE ===> ");
if (cCONDOP->op_false)
fprintf(stderr, "%d\n", cCONDOP->op_false->op_seq);
else
fprintf(stderr, "DONE\n");
break;
case OP_MAPWHILE:
case OP_GREPWHILE:
case OP_OR:
case OP_AND:
dump("OTHER ===> ");
if (cLOGOP->op_other)
fprintf(stderr, "%d\n", cLOGOP->op_other->op_seq);
else
fprintf(stderr, "DONE\n");
break;
case OP_PUSHRE:
case OP_MATCH:
case OP_SUBST:
dump_pm((PMOP*)op);
break;
default:
break;
}
if (op->op_flags & OPf_KIDS) {
OP *kid;
for (kid = cUNOP->op_first; kid; kid = kid->op_sibling)
dump_op(kid);
}
dumplvl--;
dump("}\n");
}
void
dump_gv(gv)
register GV *gv;
{
SV *sv;
if (!gv) {
fprintf(stderr,"{}\n");
return;
}
sv = sv_newmortal();
dumplvl++;
fprintf(stderr,"{\n");
gv_fullname(sv,gv);
dump("GV_NAME = %s", SvPVX(sv));
if (gv != GvEGV(gv)) {
gv_efullname(sv,GvEGV(gv));
dump("-> %s", SvPVX(sv));
}
dump("\n");
dumplvl--;
dump("}\n");
}
void
dump_pm(pm)
register PMOP *pm;
{
char ch;
if (!pm) {
dump("{}\n");
return;
}
dump("{\n");
dumplvl++;
if (pm->op_pmflags & PMf_ONCE)
ch = '?';
else
ch = '/';
if (pm->op_pmregexp)
dump("PMf_PRE %c%s%c\n",ch,pm->op_pmregexp->precomp,ch);
if (pm->op_type != OP_PUSHRE && pm->op_pmreplroot) {
dump("PMf_REPL = ");
dump_op(pm->op_pmreplroot);
}
if (pm->op_pmshort) {
dump("PMf_SHORT = %s\n",SvPEEK(pm->op_pmshort));
}
if (pm->op_pmflags) {
*buf = '\0';
if (pm->op_pmflags & PMf_USED)
(void)strcat(buf,"USED,");
if (pm->op_pmflags & PMf_ONCE)
(void)strcat(buf,"ONCE,");
if (pm->op_pmflags & PMf_SCANFIRST)
(void)strcat(buf,"SCANFIRST,");
if (pm->op_pmflags & PMf_ALL)
(void)strcat(buf,"ALL,");
if (pm->op_pmflags & PMf_SKIPWHITE)
(void)strcat(buf,"SKIPWHITE,");
if (pm->op_pmflags & PMf_FOLD)
(void)strcat(buf,"FOLD,");
if (pm->op_pmflags & PMf_CONST)
(void)strcat(buf,"CONST,");
if (pm->op_pmflags & PMf_KEEP)
(void)strcat(buf,"KEEP,");
if (pm->op_pmflags & PMf_GLOBAL)
(void)strcat(buf,"GLOBAL,");
if (pm->op_pmflags & PMf_RUNTIME)
(void)strcat(buf,"RUNTIME,");
if (pm->op_pmflags & PMf_EVAL)
(void)strcat(buf,"EVAL,");
if (*buf)
buf[strlen(buf)-1] = '\0';
dump("PMFLAGS = (%s)\n",buf);
}
dumplvl--;
dump("}\n");
}
/* VARARGS1 */
static void dump(arg1,arg2,arg3,arg4,arg5)
char *arg1;
long arg2, arg3, arg4, arg5;
{
I32 i;
for (i = dumplvl*4; i; i--)
(void)putc(' ',stderr);
fprintf(stderr,arg1, arg2, arg3, arg4, arg5);
}
#endif