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

#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 */

static int dd_debug = 0;

#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);

  if (SvLEN(PL_linestr) < new_len) {
    croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
  }

  SvGROW(PL_linestr, new_len);

  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;
    if (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));
    }
    call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
    if (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));
    }
    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? */

  if (dd_debug) {
    printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
  }

  dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));

  if (dd_flags == -1)
    return o;

  if (dd_debug) {
    printf("dd_flags are: %i\n", dd_flags);
    printf("PL_tokenbuf: %s\n", PL_tokenbuf);
  }

  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)) {
    if (dd_debug) {
      printf("mangling eval sv\n");
    }
    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;

BOOT:
  if (getenv ("DD_DEBUG")) {
    dd_debug = 1;
  }
Commit	Line	Data
94caac6e	1	#include "EXTERN.h"
	2	#include "perl.h"
	3	#include "XSUB.h"
	4	#undef printf
e807ee50	5	#include "stolen_chunk_of_toke.c"
94caac6e	6	#include <stdio.h>
	7	#include <string.h>
	8
9673d7ca	9	#ifndef Newx
	10	# define Newx(v,n,t) New(0,v,n,t)
	11	#endif /* !Newx */
	12
e81bee92	13	static int dd_debug = 0;
c630715a	14
94caac6e	15	#define LEX_NORMAL 10
	16	#define LEX_INTERPNORMAL 9
	17
94caac6e	18	/* flag to trigger removal of temporary declaree sub */
	19
	20	static int in_declare = 0;
	21
96f12726	22	/* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
	23	is a lookup into it - so if anything else we can use to tell, so we
	24	need to be a bit more careful if PL_parser exists */
	25
	26	#define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL \|\| PL_lex_state == LEX_INTERPNORMAL)
	27
	28	#ifdef PL_parser
	29	#define DD_HAVE_PARSER PL_parser
	30	#define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
	31	#define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
	32	#else
	33	#define DD_HAVE_PARSER 1
	34	#define DD_HAVE_LEX_STUFF PL_lex_stuff
	35	#define DD_AM_LEXING DD_AM_LEXING_CHECK
	36	#endif
	37
72f20f69	38	/* thing that decides whether we're dealing with a declarator */
	39
	40	int dd_is_declarator(pTHX_ char* name) {
	41	HV* is_declarator;
	42	SV** is_declarator_pack_ref;
	43	HV* is_declarator_pack_hash;
	44	SV** is_declarator_flag_ref;
	45	int dd_flags;
	46
	47	is_declarator = get_hv("Devel::Declare::declarators", FALSE);
	48
	49	if (!is_declarator)
	50	return -1;
	51
569ac469	52	/* $declarators{$current_package_name} */
569ac469	53
72f20f69	54	is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
	55	strlen(HvNAME(PL_curstash)), FALSE);
	56
	57	if (!is_declarator_pack_ref \|\| !SvROK(*is_declarator_pack_ref))
	58	return -1; /* not a hashref */
	59
	60	is_declarator_pack_hash = (HV) SvRV(is_declarator_pack_ref);
	61
569ac469	62	/* $declarators{$current_package_name}{$name} */
569ac469	63
72f20f69	64	is_declarator_flag_ref = hv_fetch(
	65	is_declarator_pack_hash, name,
	66	strlen(name), FALSE
	67	);
	68
	69	/* requires SvIOK as well as TRUE since flags not being an int is useless */
	70
	71	if (!is_declarator_flag_ref
	72	\|\| !SvIOK(*is_declarator_flag_ref)
	73	\|\| !SvTRUE(*is_declarator_flag_ref))
	74	return -1;
	75
	76	dd_flags = SvIVX(*is_declarator_flag_ref);
	77
	78	return dd_flags;
	79	}
	80
569ac469	81	/* callback thingy */
569ac469	82
a9bd9b5e	83	void dd_linestr_callback (pTHX_ char* type, char* name) {
569ac469	84
569ac469	85	char* linestr = SvPVX(PL_linestr);
a9bd9b5e	86	int offset = PL_bufptr - linestr;
569ac469	87
569ac469	88	dSP;
	89
	90	ENTER;
	91	SAVETMPS;
	92
	93	PUSHMARK(SP);
	94	XPUSHs(sv_2mortal(newSVpv(type, 0)));
	95	XPUSHs(sv_2mortal(newSVpv(name, 0)));
	96	XPUSHs(sv_2mortal(newSViv(offset)));
	97	PUTBACK;
	98
04a8a223	99	call_pv("Devel::Declare::linestr_callback", G_VOID\|G_DISCARD);
569ac469	100
569ac469	101	FREETMPS;
	102	LEAVE;
	103	}
	104
	105	char* dd_get_linestr(pTHX) {
	106	return SvPVX(PL_linestr);
	107	}
	108
	109	void dd_set_linestr(pTHX_ char* new_value) {
	110	int new_len = strlen(new_value);
	111	char* old_linestr = SvPVX(PL_linestr);
	112
ce9a252b	113	if (SvLEN(PL_linestr) < new_len) {
f9eb22eb	114	croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
ce9a252b	115	}
	116
	117	SvGROW(PL_linestr, new_len);
569ac469	118
	119	memcpy(SvPVX(PL_linestr), new_value, new_len+1);
	120
	121	SvCUR_set(PL_linestr, new_len);
	122
	123	PL_bufend = SvPVX(PL_linestr) + new_len;
	124	}
	125
04a8a223	126	char* dd_get_lex_stuff(pTHX) {
96f12726	127	return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
04a8a223	128	}
	129
	130	char* dd_clear_lex_stuff(pTHX) {
96f12726	131	if (DD_HAVE_PARSER)
f05cbc90	132	PL_lex_stuff = (SV*)NULL;
04a8a223	133	}
	134
	135	char* dd_get_curstash_name(pTHX) {
	136	return HvNAME(PL_curstash);
	137	}
	138
022eb0cc	139	int dd_get_linestr_offset(pTHX) {
	140	char* linestr = SvPVX(PL_linestr);
	141	return PL_bufptr - linestr;
	142	}
	143
840ebcbb	144	char* dd_move_past_token (pTHX_ char* s) {
923c07a8	145
	146	/*
	147	* buffer will be at the beginning of the declarator, -unless- the
	148	* declarator is at EOL in which case it'll be the next useful line
	149	* so we don't short-circuit out if we don't find the declarator
	150	*/
	151
	152	while (s < PL_bufend && isSPACE(*s)) s++;
	153	if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
	154	s += strlen(PL_tokenbuf);
	155	return s;
	156	}
	157
840ebcbb	158	int dd_toke_move_past_token (pTHX_ int offset) {
04a8a223	159	char* base_s = SvPVX(PL_linestr) + offset;
	160	char* s = dd_move_past_token(aTHX_ base_s);
	161	return s - base_s;
	162	}
	163
923c07a8	164	int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
	165	char tmpbuf[sizeof PL_tokenbuf];
	166	char* base_s = SvPVX(PL_linestr) + offset;
	167	STRLEN len;
	168	char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
	169	return s - base_s;
	170	}
	171
	172	int dd_toke_scan_str(pTHX_ int offset) {
	173	char* base_s = SvPVX(PL_linestr) + offset;
	174	char* s = scan_str(base_s, FALSE, FALSE);
	175	return s - base_s;
	176	}
	177
	178	int dd_toke_skipspace(pTHX_ int offset) {
	179	char* base_s = SvPVX(PL_linestr) + offset;
	180	char* s = skipspace(base_s);
	181	return s - base_s;
	182	}
	183
94caac6e	184	/* replacement PL_check rv2cv entry */
94caac6e	185
bedac9ff	186	STATIC OP (dd_old_ck_rv2cv)(pTHX_ OP *op);
bedac9ff	187
94caac6e	188	STATIC OP dd_ck_rv2cv(pTHX_ OP o) {
94caac6e	189	OP* kid;
0ba8c7aa	190	int dd_flags;
9026391e	191	char* cb_args[6];
94caac6e	192
	193	o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
	194
	195	if (in_declare) {
840ebcbb	196	cb_args[0] = NULL;
e81bee92	197	if (dd_debug) {
	198	printf("Deconstructing declare\n");
	199	printf("PL_bufptr: %s\n", PL_bufptr);
	200	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	201	printf("linestr: %s\n", SvPVX(PL_linestr));
	202	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	203	}
840ebcbb	204	call_argv("Devel::Declare::done_declare", G_VOID\|G_DISCARD, cb_args);
e81bee92	205	if (dd_debug) {
	206	printf("PL_bufptr: %s\n", PL_bufptr);
	207	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	208	printf("linestr: %s\n", SvPVX(PL_linestr));
	209	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	210	printf("actual len: %i\n", strlen(PL_bufptr));
	211	}
94caac6e	212	return o;
	213	}
	214
	215	kid = cUNOPo->op_first;
	216
	217	if (kid->op_type != OP_GV) /* not a GV so ignore */
	218	return o;
	219
96f12726	220	if (!DD_AM_LEXING)
94caac6e	221	return o; /* not lexing? */
94caac6e	222
e81bee92	223	if (dd_debug) {
	224	printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
	225	}
840ebcbb	226
72f20f69	227	dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
94caac6e	228
72f20f69	229	if (dd_flags == -1)
94caac6e	230	return o;
94caac6e	231
e81bee92	232	if (dd_debug) {
	233	printf("dd_flags are: %i\n", dd_flags);
	234	printf("PL_tokenbuf: %s\n", PL_tokenbuf);
	235	}
840ebcbb	236
a9bd9b5e	237	dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
94caac6e	238
53e3ab32	239	return o;
	240	}
	241
bedac9ff	242	STATIC OP (dd_old_ck_entereval)(pTHX_ OP *op);
bedac9ff	243
b7505981	244	OP* dd_pp_entereval(pTHX) {
	245	dSP;
	246	dPOPss;
	247	STRLEN len;
	248	const char* s;
	249	if (SvPOK(sv)) {
e81bee92	250	if (dd_debug) {
	251	printf("mangling eval sv\n");
	252	}
b7505981	253	if (SvREADONLY(sv))
	254	sv = sv_2mortal(newSVsv(sv));
	255	s = SvPVX(sv);
	256	len = SvCUR(sv);
	257	if (!len \|\| s[len-1] != ';') {
	258	if (!(SvFLAGS(sv) & SVs_TEMP))
	259	sv = sv_2mortal(newSVsv(sv));
	260	sv_catpvn(sv, "\n;", 2);
53e3ab32	261	}
b7505981	262	SvGROW(sv, 8192);
53e3ab32	263	}
b7505981	264	PUSHs(sv);
	265	return PL_ppaddr[OP_ENTEREVAL](aTHX);
	266	}
53e3ab32	267
b7505981	268	STATIC OP dd_ck_entereval(pTHX_ OP o) {
b7505981	269	o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
d8e65fc8	270	if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
d8e65fc8	271	o->op_ppaddr = dd_pp_entereval;
94caac6e	272	return o;
	273	}
	274
6a0bcf35	275	static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
	276	{
	277	const I32 count = FILTER_READ(idx+1, sv, maxlen);
	278	SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
	279	/* filter_del(dd_filter_realloc); */
	280	return count;
	281	}
	282
bedac9ff	283	STATIC OP (dd_old_ck_const)(pTHX_ OP*op);
	284
	285	STATIC OP dd_ck_const(pTHX_ OP o) {
bedac9ff	286	int dd_flags;
bedac9ff	287	char* s;
04a8a223	288	char* name;
bedac9ff	289
	290	o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
	291
34335b63	292	/* if this is set, we just grabbed a delimited string or something,
	293	not a bareword, so NO TOUCHY */
	294
79abf18a	295	if (DD_HAVE_LEX_STUFF)
34335b63	296	return o;
34335b63	297
bedac9ff	298	/* don't try and look this up if it's not a string const */
	299	if (!SvPOK(cSVOPo->op_sv))
	300	return o;
	301
04a8a223	302	name = SvPVX(cSVOPo->op_sv);
	303
	304	dd_flags = dd_is_declarator(aTHX_ name);
bedac9ff	305
a9fb5fb1	306	if (dd_flags == -1)
bedac9ff	307	return o;
bedac9ff	308
a9bd9b5e	309	dd_linestr_callback(aTHX_ "const", name);
bedac9ff	310
bedac9ff	311	return o;
	312	}
	313
94caac6e	314	static int initialized = 0;
	315
	316	MODULE = Devel::Declare PACKAGE = Devel::Declare
	317
	318	PROTOTYPES: DISABLE
	319
	320	void
	321	setup()
	322	CODE:
	323	if (!initialized++) {
	324	dd_old_ck_rv2cv = PL_check[OP_RV2CV];
	325	PL_check[OP_RV2CV] = dd_ck_rv2cv;
b7505981	326	dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
b7505981	327	PL_check[OP_ENTEREVAL] = dd_ck_entereval;
bedac9ff	328	dd_old_ck_const = PL_check[OP_CONST];
bedac9ff	329	PL_check[OP_CONST] = dd_ck_const;
94caac6e	330	}
6a0bcf35	331	filter_add(dd_filter_realloc, NULL);
569ac469	332
	333	char*
	334	get_linestr()
	335	CODE:
	336	RETVAL = dd_get_linestr(aTHX);
	337	OUTPUT:
	338	RETVAL
923c07a8	339
	340	void
	341	set_linestr(char* new_value)
	342	CODE:
	343	dd_set_linestr(aTHX_ new_value);
	344
04a8a223	345	char*
	346	get_lex_stuff()
	347	CODE:
	348	RETVAL = dd_get_lex_stuff(aTHX);
	349	OUTPUT:
	350	RETVAL
	351
	352	void
	353	clear_lex_stuff()
	354	CODE:
	355	dd_clear_lex_stuff(aTHX);
	356
	357	char*
	358	get_curstash_name()
	359	CODE:
	360	RETVAL = dd_get_curstash_name(aTHX);
	361	OUTPUT:
	362	RETVAL
	363
923c07a8	364	int
022eb0cc	365	get_linestr_offset()
	366	CODE:
	367	RETVAL = dd_get_linestr_offset(aTHX);
	368	OUTPUT:
	369	RETVAL
	370
	371	int
923c07a8	372	toke_scan_word(int offset, int handle_package)
	373	CODE:
	374	RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
	375	OUTPUT:
	376	RETVAL
	377
	378	int
04a8a223	379	toke_move_past_token(int offset);
	380	CODE:
	381	RETVAL = dd_toke_move_past_token(aTHX_ offset);
	382	OUTPUT:
	383	RETVAL
	384
	385	int
923c07a8	386	toke_scan_str(int offset);
	387	CODE:
	388	RETVAL = dd_toke_scan_str(aTHX_ offset);
	389	OUTPUT:
	390	RETVAL
	391
	392	int
	393	toke_skipspace(int offset)
	394	CODE:
	395	RETVAL = dd_toke_skipspace(aTHX_ offset);
	396	OUTPUT:
	397	RETVAL
04a8a223	398
	399	int
	400	get_in_declare()
	401	CODE:
	402	RETVAL = in_declare;
	403	OUTPUT:
	404	RETVAL
	405
	406	void
	407	set_in_declare(int value)
	408	CODE:
	409	in_declare = value;
e81bee92	410
	411	BOOT:
	412	if (getenv ("DD_DEBUG")) {
	413	dd_debug = 1;
	414	}