[p5sagit/Devel-Declare.git] / Declare.xs

#define PERL_CORE
#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#undef printf
#include "stolen_chunk_of_toke.c"
#include <stdio.h>
#include <string.h>

#ifndef Newx
# define Newx(v,n,t) New(0,v,n,t)
#endif /* !Newx */

#if 0
#define DD_DEBUG
#endif

#ifdef DD_DEBUG
#define DD_DEBUG_S printf("Buffer: %s\n", s);
#else
#define DD_DEBUG_S
#endif

#define LEX_NORMAL    10
#define LEX_INTERPNORMAL   9

/* flag to trigger removal of temporary declaree sub */

static int in_declare = 0;

/* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
   is a lookup into it - so if anything else we can use to tell, so we
   need to be a bit more careful if PL_parser exists */

#define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)

#ifdef PL_parser
#define DD_HAVE_PARSER PL_parser
#define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
#define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
#else
#define DD_HAVE_PARSER 1
#define DD_HAVE_LEX_STUFF PL_lex_stuff
#define DD_AM_LEXING DD_AM_LEXING_CHECK
#endif

/* thing that decides whether we're dealing with a declarator */

int dd_is_declarator(pTHX_ char* name) {
  HV* is_declarator;
  SV** is_declarator_pack_ref;
  HV* is_declarator_pack_hash;
  SV** is_declarator_flag_ref;
  int dd_flags;

  is_declarator = get_hv("Devel::Declare::declarators", FALSE);

  if (!is_declarator)
    return -1;

  /* $declarators{$current_package_name} */

  is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
                             strlen(HvNAME(PL_curstash)), FALSE);

  if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
    return -1; /* not a hashref */

  is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);

  /* $declarators{$current_package_name}{$name} */

  is_declarator_flag_ref = hv_fetch(
    is_declarator_pack_hash, name,
    strlen(name), FALSE
  );

  /* requires SvIOK as well as TRUE since flags not being an int is useless */

  if (!is_declarator_flag_ref
        || !SvIOK(*is_declarator_flag_ref) 
        || !SvTRUE(*is_declarator_flag_ref))
    return -1;

  dd_flags = SvIVX(*is_declarator_flag_ref);

  return dd_flags;
}

/* callback thingy */

void dd_linestr_callback (pTHX_ char* type, char* name) {

  char* linestr = SvPVX(PL_linestr);
  int offset = PL_bufptr - linestr;

  dSP;

  ENTER;
  SAVETMPS;

  PUSHMARK(SP);
  XPUSHs(sv_2mortal(newSVpv(type, 0)));
  XPUSHs(sv_2mortal(newSVpv(name, 0)));
  XPUSHs(sv_2mortal(newSViv(offset)));
  PUTBACK;

  call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);

  FREETMPS;
  LEAVE;
}

char* dd_get_linestr(pTHX) {
  return SvPVX(PL_linestr);
}

void dd_set_linestr(pTHX_ char* new_value) {
  int new_len = strlen(new_value);
  char* old_linestr = SvPVX(PL_linestr);

  SvGROW(PL_linestr, strlen(new_value));

  if (SvPVX(PL_linestr) != old_linestr)
    Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));

  memcpy(SvPVX(PL_linestr), new_value, new_len+1);

  SvCUR_set(PL_linestr, new_len);

  PL_bufend = SvPVX(PL_linestr) + new_len;
}

char* dd_get_lex_stuff(pTHX) {
  return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
}

char* dd_clear_lex_stuff(pTHX) {
  if (DD_HAVE_PARSER)
    PL_lex_stuff = (SV*)NULL;
}

char* dd_get_curstash_name(pTHX) {
  return HvNAME(PL_curstash);
}

int dd_get_linestr_offset(pTHX) {
  char* linestr = SvPVX(PL_linestr);
  return PL_bufptr - linestr;
}

char* dd_move_past_token (pTHX_ char* s) {

  /*
   *   buffer will be at the beginning of the declarator, -unless- the
   *   declarator is at EOL in which case it'll be the next useful line
   *   so we don't short-circuit out if we don't find the declarator
   */

  while (s < PL_bufend && isSPACE(*s)) s++;
  if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
    s += strlen(PL_tokenbuf);
  return s;
}

int dd_toke_move_past_token (pTHX_ int offset) {
  char* base_s = SvPVX(PL_linestr) + offset;
  char* s = dd_move_past_token(aTHX_ base_s);
  return s - base_s;
}

int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
  char tmpbuf[sizeof PL_tokenbuf];
  char* base_s = SvPVX(PL_linestr) + offset;
  STRLEN len;
  char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
  return s - base_s;
}

int dd_toke_scan_str(pTHX_ int offset) {
  char* base_s = SvPVX(PL_linestr) + offset;
  char* s = scan_str(base_s, FALSE, FALSE);
  return s - base_s;
}

int dd_toke_skipspace(pTHX_ int offset) {
  char* base_s = SvPVX(PL_linestr) + offset;
  char* s = skipspace(base_s);
  return s - base_s;
}

/* replacement PL_check rv2cv entry */

STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);

STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
  OP* kid;
  int dd_flags;
  char* cb_args[6];

  o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */

  if (in_declare) {
    cb_args[0] = NULL;
#ifdef DD_DEBUG
    printf("Deconstructing declare\n");
    printf("PL_bufptr: %s\n", PL_bufptr);
    printf("bufend at: %i\n", PL_bufend - PL_bufptr);
    printf("linestr: %s\n", SvPVX(PL_linestr));
    printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
#endif
    call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
#ifdef DD_DEBUG
    printf("PL_bufptr: %s\n", PL_bufptr);
    printf("bufend at: %i\n", PL_bufend - PL_bufptr);
    printf("linestr: %s\n", SvPVX(PL_linestr));
    printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
    printf("actual len: %i\n", strlen(PL_bufptr));
#endif
    return o;
  }

  kid = cUNOPo->op_first;

  if (kid->op_type != OP_GV) /* not a GV so ignore */
    return o;

  if (!DD_AM_LEXING)
    return o; /* not lexing? */

#ifdef DD_DEBUG
  printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
#endif

  dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));

  if (dd_flags == -1)
    return o;

#ifdef DD_DEBUG
  printf("dd_flags are: %i\n", dd_flags);
#endif

#ifdef DD_DEBUG
  printf("PL_tokenbuf: %s\n", PL_tokenbuf);
#endif

  dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));

  return o;
}

STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);

OP* dd_pp_entereval(pTHX) {
  dSP;
  dPOPss;
  STRLEN len;
  const char* s;
  if (SvPOK(sv)) {
#ifdef DD_DEBUG
    printf("mangling eval sv\n");
#endif
    if (SvREADONLY(sv))
      sv = sv_2mortal(newSVsv(sv));
    s = SvPVX(sv);
    len = SvCUR(sv);
    if (!len || s[len-1] != ';') {
      if (!(SvFLAGS(sv) & SVs_TEMP))
        sv = sv_2mortal(newSVsv(sv));
      sv_catpvn(sv, "\n;", 2);
    }
    SvGROW(sv, 8192);
  }
  PUSHs(sv);
  return PL_ppaddr[OP_ENTEREVAL](aTHX);
}

STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
  o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
  if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
    o->op_ppaddr = dd_pp_entereval;
  return o;
}

static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
{
  const I32 count = FILTER_READ(idx+1, sv, maxlen);
  SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
  /* filter_del(dd_filter_realloc); */
  return count;
}

STATIC OP *(*dd_old_ck_const)(pTHX_ OP*op);

STATIC OP *dd_ck_const(pTHX_ OP *o) {
  int dd_flags;
  char* s;
  char* name;

  o = dd_old_ck_const(aTHX_ o); /* let the original do its job */

  /* if this is set, we just grabbed a delimited string or something,
     not a bareword, so NO TOUCHY */

  if (DD_HAVE_LEX_STUFF)
    return o;

  /* don't try and look this up if it's not a string const */
  if (!SvPOK(cSVOPo->op_sv))
    return o;

  name = SvPVX(cSVOPo->op_sv);

  dd_flags = dd_is_declarator(aTHX_ name);

  if (dd_flags == -1)
    return o;

  dd_linestr_callback(aTHX_ "const", name);

  return o;  
}

static int initialized = 0;

MODULE = Devel::Declare  PACKAGE = Devel::Declare

PROTOTYPES: DISABLE

void
setup()
  CODE:
  if (!initialized++) {
    dd_old_ck_rv2cv = PL_check[OP_RV2CV];
    PL_check[OP_RV2CV] = dd_ck_rv2cv;
    dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
    PL_check[OP_ENTEREVAL] = dd_ck_entereval;
    dd_old_ck_const = PL_check[OP_CONST];
    PL_check[OP_CONST] = dd_ck_const;
  }
  filter_add(dd_filter_realloc, NULL);

char*
get_linestr()
  CODE:
    RETVAL = dd_get_linestr(aTHX);
  OUTPUT:
    RETVAL

void
set_linestr(char* new_value)
  CODE:
    dd_set_linestr(aTHX_ new_value);

char*
get_lex_stuff()
  CODE:
    RETVAL = dd_get_lex_stuff(aTHX);
  OUTPUT:
    RETVAL

void
clear_lex_stuff()
  CODE:
    dd_clear_lex_stuff(aTHX);

char*
get_curstash_name()
  CODE:
    RETVAL = dd_get_curstash_name(aTHX);
  OUTPUT:
    RETVAL

int
get_linestr_offset()
  CODE:
    RETVAL = dd_get_linestr_offset(aTHX);
  OUTPUT:
    RETVAL

int
toke_scan_word(int offset, int handle_package)
  CODE:
    RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
  OUTPUT:
    RETVAL

int
toke_move_past_token(int offset);
  CODE:
    RETVAL = dd_toke_move_past_token(aTHX_ offset);
  OUTPUT:
    RETVAL

int
toke_scan_str(int offset);
  CODE:
    RETVAL = dd_toke_scan_str(aTHX_ offset);
  OUTPUT:
    RETVAL

int
toke_skipspace(int offset)
  CODE:
    RETVAL = dd_toke_skipspace(aTHX_ offset);
  OUTPUT:
    RETVAL

int
get_in_declare()
  CODE:
    RETVAL = in_declare;
  OUTPUT:
    RETVAL

void
set_in_declare(int value)
  CODE:
    in_declare = value;
Commit	Line	Data
94caac6e	1	#define PERL_CORE
94caac6e	2	#define PERL_NO_GET_CONTEXT
94caac6e	3	#include "EXTERN.h"
	4	#include "perl.h"
	5	#include "XSUB.h"
	6	#undef printf
e807ee50	7	#include "stolen_chunk_of_toke.c"
94caac6e	8	#include <stdio.h>
	9	#include <string.h>
	10
9673d7ca	11	#ifndef Newx
	12	# define Newx(v,n,t) New(0,v,n,t)
	13	#endif /* !Newx */
	14
53e3ab32	15	#if 0
	16	#define DD_DEBUG
	17	#endif
c630715a	18
	19	#ifdef DD_DEBUG
	20	#define DD_DEBUG_S printf("Buffer: %s\n", s);
	21	#else
	22	#define DD_DEBUG_S
	23	#endif
	24
94caac6e	25	#define LEX_NORMAL 10
	26	#define LEX_INTERPNORMAL 9
	27
94caac6e	28	/* flag to trigger removal of temporary declaree sub */
	29
	30	static int in_declare = 0;
	31
96f12726	32	/* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
	33	is a lookup into it - so if anything else we can use to tell, so we
	34	need to be a bit more careful if PL_parser exists */
	35
	36	#define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL \|\| PL_lex_state == LEX_INTERPNORMAL)
	37
	38	#ifdef PL_parser
	39	#define DD_HAVE_PARSER PL_parser
	40	#define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
	41	#define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
	42	#else
	43	#define DD_HAVE_PARSER 1
	44	#define DD_HAVE_LEX_STUFF PL_lex_stuff
	45	#define DD_AM_LEXING DD_AM_LEXING_CHECK
	46	#endif
	47
72f20f69	48	/* thing that decides whether we're dealing with a declarator */
	49
	50	int dd_is_declarator(pTHX_ char* name) {
	51	HV* is_declarator;
	52	SV** is_declarator_pack_ref;
	53	HV* is_declarator_pack_hash;
	54	SV** is_declarator_flag_ref;
	55	int dd_flags;
	56
	57	is_declarator = get_hv("Devel::Declare::declarators", FALSE);
	58
	59	if (!is_declarator)
	60	return -1;
	61
569ac469	62	/* $declarators{$current_package_name} */
569ac469	63
72f20f69	64	is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
	65	strlen(HvNAME(PL_curstash)), FALSE);
	66
	67	if (!is_declarator_pack_ref \|\| !SvROK(*is_declarator_pack_ref))
	68	return -1; /* not a hashref */
	69
	70	is_declarator_pack_hash = (HV) SvRV(is_declarator_pack_ref);
	71
569ac469	72	/* $declarators{$current_package_name}{$name} */
569ac469	73
72f20f69	74	is_declarator_flag_ref = hv_fetch(
	75	is_declarator_pack_hash, name,
	76	strlen(name), FALSE
	77	);
	78
	79	/* requires SvIOK as well as TRUE since flags not being an int is useless */
	80
	81	if (!is_declarator_flag_ref
	82	\|\| !SvIOK(*is_declarator_flag_ref)
	83	\|\| !SvTRUE(*is_declarator_flag_ref))
	84	return -1;
	85
	86	dd_flags = SvIVX(*is_declarator_flag_ref);
	87
	88	return dd_flags;
	89	}
	90
569ac469	91	/* callback thingy */
569ac469	92
a9bd9b5e	93	void dd_linestr_callback (pTHX_ char* type, char* name) {
569ac469	94
569ac469	95	char* linestr = SvPVX(PL_linestr);
a9bd9b5e	96	int offset = PL_bufptr - linestr;
569ac469	97
569ac469	98	dSP;
	99
	100	ENTER;
	101	SAVETMPS;
	102
	103	PUSHMARK(SP);
	104	XPUSHs(sv_2mortal(newSVpv(type, 0)));
	105	XPUSHs(sv_2mortal(newSVpv(name, 0)));
	106	XPUSHs(sv_2mortal(newSViv(offset)));
	107	PUTBACK;
	108
04a8a223	109	call_pv("Devel::Declare::linestr_callback", G_VOID\|G_DISCARD);
569ac469	110
569ac469	111	FREETMPS;
	112	LEAVE;
	113	}
	114
	115	char* dd_get_linestr(pTHX) {
	116	return SvPVX(PL_linestr);
	117	}
	118
	119	void dd_set_linestr(pTHX_ char* new_value) {
	120	int new_len = strlen(new_value);
	121	char* old_linestr = SvPVX(PL_linestr);
	122
	123	SvGROW(PL_linestr, strlen(new_value));
	124
	125	if (SvPVX(PL_linestr) != old_linestr)
	126	Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
	127
	128	memcpy(SvPVX(PL_linestr), new_value, new_len+1);
	129
	130	SvCUR_set(PL_linestr, new_len);
	131
	132	PL_bufend = SvPVX(PL_linestr) + new_len;
	133	}
	134
04a8a223	135	char* dd_get_lex_stuff(pTHX) {
96f12726	136	return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
04a8a223	137	}
	138
	139	char* dd_clear_lex_stuff(pTHX) {
96f12726	140	if (DD_HAVE_PARSER)
f05cbc90	141	PL_lex_stuff = (SV*)NULL;
04a8a223	142	}
	143
	144	char* dd_get_curstash_name(pTHX) {
	145	return HvNAME(PL_curstash);
	146	}
	147
022eb0cc	148	int dd_get_linestr_offset(pTHX) {
	149	char* linestr = SvPVX(PL_linestr);
	150	return PL_bufptr - linestr;
	151	}
	152
840ebcbb	153	char* dd_move_past_token (pTHX_ char* s) {
923c07a8	154
	155	/*
	156	* buffer will be at the beginning of the declarator, -unless- the
	157	* declarator is at EOL in which case it'll be the next useful line
	158	* so we don't short-circuit out if we don't find the declarator
	159	*/
	160
	161	while (s < PL_bufend && isSPACE(*s)) s++;
	162	if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
	163	s += strlen(PL_tokenbuf);
	164	return s;
	165	}
	166
840ebcbb	167	int dd_toke_move_past_token (pTHX_ int offset) {
04a8a223	168	char* base_s = SvPVX(PL_linestr) + offset;
	169	char* s = dd_move_past_token(aTHX_ base_s);
	170	return s - base_s;
	171	}
	172
923c07a8	173	int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
	174	char tmpbuf[sizeof PL_tokenbuf];
	175	char* base_s = SvPVX(PL_linestr) + offset;
	176	STRLEN len;
	177	char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
	178	return s - base_s;
	179	}
	180
	181	int dd_toke_scan_str(pTHX_ int offset) {
	182	char* base_s = SvPVX(PL_linestr) + offset;
	183	char* s = scan_str(base_s, FALSE, FALSE);
	184	return s - base_s;
	185	}
	186
	187	int dd_toke_skipspace(pTHX_ int offset) {
	188	char* base_s = SvPVX(PL_linestr) + offset;
	189	char* s = skipspace(base_s);
	190	return s - base_s;
	191	}
	192
94caac6e	193	/* replacement PL_check rv2cv entry */
94caac6e	194
bedac9ff	195	STATIC OP (dd_old_ck_rv2cv)(pTHX_ OP *op);
bedac9ff	196
94caac6e	197	STATIC OP dd_ck_rv2cv(pTHX_ OP o) {
94caac6e	198	OP* kid;
0ba8c7aa	199	int dd_flags;
9026391e	200	char* cb_args[6];
94caac6e	201
	202	o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
	203
	204	if (in_declare) {
840ebcbb	205	cb_args[0] = NULL;
	206	#ifdef DD_DEBUG
	207	printf("Deconstructing declare\n");
	208	printf("PL_bufptr: %s\n", PL_bufptr);
	209	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	210	printf("linestr: %s\n", SvPVX(PL_linestr));
	211	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	212	#endif
	213	call_argv("Devel::Declare::done_declare", G_VOID\|G_DISCARD, cb_args);
	214	#ifdef DD_DEBUG
	215	printf("PL_bufptr: %s\n", PL_bufptr);
	216	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	217	printf("linestr: %s\n", SvPVX(PL_linestr));
	218	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	219	printf("actual len: %i\n", strlen(PL_bufptr));
	220	#endif
94caac6e	221	return o;
	222	}
	223
	224	kid = cUNOPo->op_first;
	225
	226	if (kid->op_type != OP_GV) /* not a GV so ignore */
	227	return o;
	228
96f12726	229	if (!DD_AM_LEXING)
94caac6e	230	return o; /* not lexing? */
94caac6e	231
840ebcbb	232	#ifdef DD_DEBUG
	233	printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
	234	#endif
	235
72f20f69	236	dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
94caac6e	237
72f20f69	238	if (dd_flags == -1)
94caac6e	239	return o;
94caac6e	240
840ebcbb	241	#ifdef DD_DEBUG
	242	printf("dd_flags are: %i\n", dd_flags);
	243	#endif
	244
	245	#ifdef DD_DEBUG
	246	printf("PL_tokenbuf: %s\n", PL_tokenbuf);
	247	#endif
	248
a9bd9b5e	249	dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
94caac6e	250
53e3ab32	251	return o;
	252	}
	253
bedac9ff	254	STATIC OP (dd_old_ck_entereval)(pTHX_ OP *op);
bedac9ff	255
b7505981	256	OP* dd_pp_entereval(pTHX) {
	257	dSP;
	258	dPOPss;
	259	STRLEN len;
	260	const char* s;
	261	if (SvPOK(sv)) {
53e3ab32	262	#ifdef DD_DEBUG
b7505981	263	printf("mangling eval sv\n");
53e3ab32	264	#endif
b7505981	265	if (SvREADONLY(sv))
	266	sv = sv_2mortal(newSVsv(sv));
	267	s = SvPVX(sv);
	268	len = SvCUR(sv);
	269	if (!len \|\| s[len-1] != ';') {
	270	if (!(SvFLAGS(sv) & SVs_TEMP))
	271	sv = sv_2mortal(newSVsv(sv));
	272	sv_catpvn(sv, "\n;", 2);
53e3ab32	273	}
b7505981	274	SvGROW(sv, 8192);
53e3ab32	275	}
b7505981	276	PUSHs(sv);
	277	return PL_ppaddr[OP_ENTEREVAL](aTHX);
	278	}
53e3ab32	279
b7505981	280	STATIC OP dd_ck_entereval(pTHX_ OP o) {
b7505981	281	o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
d8e65fc8	282	if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
d8e65fc8	283	o->op_ppaddr = dd_pp_entereval;
94caac6e	284	return o;
	285	}
	286
6a0bcf35	287	static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
	288	{
	289	const I32 count = FILTER_READ(idx+1, sv, maxlen);
	290	SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
	291	/* filter_del(dd_filter_realloc); */
	292	return count;
	293	}
	294
bedac9ff	295	STATIC OP (dd_old_ck_const)(pTHX_ OP*op);
	296
	297	STATIC OP dd_ck_const(pTHX_ OP o) {
bedac9ff	298	int dd_flags;
bedac9ff	299	char* s;
04a8a223	300	char* name;
bedac9ff	301
	302	o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
	303
34335b63	304	/* if this is set, we just grabbed a delimited string or something,
	305	not a bareword, so NO TOUCHY */
	306
79abf18a	307	if (DD_HAVE_LEX_STUFF)
34335b63	308	return o;
34335b63	309
bedac9ff	310	/* don't try and look this up if it's not a string const */
	311	if (!SvPOK(cSVOPo->op_sv))
	312	return o;
	313
04a8a223	314	name = SvPVX(cSVOPo->op_sv);
	315
	316	dd_flags = dd_is_declarator(aTHX_ name);
bedac9ff	317
a9fb5fb1	318	if (dd_flags == -1)
bedac9ff	319	return o;
bedac9ff	320
a9bd9b5e	321	dd_linestr_callback(aTHX_ "const", name);
bedac9ff	322
bedac9ff	323	return o;
	324	}
	325
94caac6e	326	static int initialized = 0;
	327
	328	MODULE = Devel::Declare PACKAGE = Devel::Declare
	329
	330	PROTOTYPES: DISABLE
	331
	332	void
	333	setup()
	334	CODE:
	335	if (!initialized++) {
	336	dd_old_ck_rv2cv = PL_check[OP_RV2CV];
	337	PL_check[OP_RV2CV] = dd_ck_rv2cv;
b7505981	338	dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
b7505981	339	PL_check[OP_ENTEREVAL] = dd_ck_entereval;
bedac9ff	340	dd_old_ck_const = PL_check[OP_CONST];
bedac9ff	341	PL_check[OP_CONST] = dd_ck_const;
94caac6e	342	}
6a0bcf35	343	filter_add(dd_filter_realloc, NULL);
569ac469	344
	345	char*
	346	get_linestr()
	347	CODE:
	348	RETVAL = dd_get_linestr(aTHX);
	349	OUTPUT:
	350	RETVAL
923c07a8	351
	352	void
	353	set_linestr(char* new_value)
	354	CODE:
	355	dd_set_linestr(aTHX_ new_value);
	356
04a8a223	357	char*
	358	get_lex_stuff()
	359	CODE:
	360	RETVAL = dd_get_lex_stuff(aTHX);
	361	OUTPUT:
	362	RETVAL
	363
	364	void
	365	clear_lex_stuff()
	366	CODE:
	367	dd_clear_lex_stuff(aTHX);
	368
	369	char*
	370	get_curstash_name()
	371	CODE:
	372	RETVAL = dd_get_curstash_name(aTHX);
	373	OUTPUT:
	374	RETVAL
	375
923c07a8	376	int
022eb0cc	377	get_linestr_offset()
	378	CODE:
	379	RETVAL = dd_get_linestr_offset(aTHX);
	380	OUTPUT:
	381	RETVAL
	382
	383	int
923c07a8	384	toke_scan_word(int offset, int handle_package)
	385	CODE:
	386	RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
	387	OUTPUT:
	388	RETVAL
	389
	390	int
04a8a223	391	toke_move_past_token(int offset);
	392	CODE:
	393	RETVAL = dd_toke_move_past_token(aTHX_ offset);
	394	OUTPUT:
	395	RETVAL
	396
	397	int
923c07a8	398	toke_scan_str(int offset);
	399	CODE:
	400	RETVAL = dd_toke_scan_str(aTHX_ offset);
	401	OUTPUT:
	402	RETVAL
	403
	404	int
	405	toke_skipspace(int offset)
	406	CODE:
	407	RETVAL = dd_toke_skipspace(aTHX_ offset);
	408	OUTPUT:
	409	RETVAL
04a8a223	410
	411	int
	412	get_in_declare()
	413	CODE:
	414	RETVAL = in_declare;
	415	OUTPUT:
	416	RETVAL
	417
	418	void
	419	set_in_declare(int value)
	420	CODE:
	421	in_declare = value;