[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 1
#define DD_HAS_TRAITS
#endif

#if 0
#define DD_DEBUG
#endif

#define DD_HANDLE_NAME 1
#define DD_HANDLE_PROTO 2
#define DD_HANDLE_PACKAGE 8

#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;

/* 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* s) {

  char* linestr = SvPVX(PL_linestr);
  int offset = s - 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 SvPVX(PL_lex_stuff);
}

char* dd_clear_lex_stuff(pTHX) {
  PL_lex_stuff = Nullsv;
}

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

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;
  char* s;
  char* save_s;
  char tmpbuf[sizeof PL_tokenbuf];
  char found_name[sizeof PL_tokenbuf];
  char* found_proto = NULL, *found_traits = NULL;
  STRLEN len = 0;
  int dd_flags;
  char* cb_args[6];
  dSP; /* define stack pointer for later call stuff */
  char* retstr;
  STRLEN n_a; /* for POPpx */

  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);
    in_declare--;
#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 (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL)
    return o; /* not lexing? */

  /* I was doing this, but the CONST wrap can't so it didn't gain anything
  stash = GvSTASH(kGVOP_gv); */

#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

  s = PL_bufptr; /* copy the current buffer pointer */

  DD_DEBUG_S

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

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

  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 */

  /* 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;

  s = PL_bufptr;

  dd_linestr_callback(aTHX_ "const", name, s);

  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
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
	15	#if 1
0f070758	16	#define DD_HAS_TRAITS
9673d7ca	17	#endif
9673d7ca	18
53e3ab32	19	#if 0
	20	#define DD_DEBUG
	21	#endif
c630715a	22
0ba8c7aa	23	#define DD_HANDLE_NAME 1
0ba8c7aa	24	#define DD_HANDLE_PROTO 2
15d0d014	25	#define DD_HANDLE_PACKAGE 8
0ba8c7aa	26
c630715a	27	#ifdef DD_DEBUG
	28	#define DD_DEBUG_S printf("Buffer: %s\n", s);
	29	#else
	30	#define DD_DEBUG_S
	31	#endif
	32
94caac6e	33	#define LEX_NORMAL 10
	34	#define LEX_INTERPNORMAL 9
	35
94caac6e	36	/* flag to trigger removal of temporary declaree sub */
	37
	38	static int in_declare = 0;
	39
72f20f69	40	/* thing that decides whether we're dealing with a declarator */
	41
	42	int dd_is_declarator(pTHX_ char* name) {
	43	HV* is_declarator;
	44	SV** is_declarator_pack_ref;
	45	HV* is_declarator_pack_hash;
	46	SV** is_declarator_flag_ref;
	47	int dd_flags;
	48
	49	is_declarator = get_hv("Devel::Declare::declarators", FALSE);
	50
	51	if (!is_declarator)
	52	return -1;
	53
569ac469	54	/* $declarators{$current_package_name} */
569ac469	55
72f20f69	56	is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
	57	strlen(HvNAME(PL_curstash)), FALSE);
	58
	59	if (!is_declarator_pack_ref \|\| !SvROK(*is_declarator_pack_ref))
	60	return -1; /* not a hashref */
	61
	62	is_declarator_pack_hash = (HV) SvRV(is_declarator_pack_ref);
	63
569ac469	64	/* $declarators{$current_package_name}{$name} */
569ac469	65
72f20f69	66	is_declarator_flag_ref = hv_fetch(
	67	is_declarator_pack_hash, name,
	68	strlen(name), FALSE
	69	);
	70
	71	/* requires SvIOK as well as TRUE since flags not being an int is useless */
	72
	73	if (!is_declarator_flag_ref
	74	\|\| !SvIOK(*is_declarator_flag_ref)
	75	\|\| !SvTRUE(*is_declarator_flag_ref))
	76	return -1;
	77
	78	dd_flags = SvIVX(*is_declarator_flag_ref);
	79
	80	return dd_flags;
	81	}
	82
569ac469	83	/* callback thingy */
	84
	85	void dd_linestr_callback (pTHX_ char* type, char* name, char* s) {
	86
	87	char* linestr = SvPVX(PL_linestr);
	88	int offset = s - linestr;
	89
569ac469	90	dSP;
	91
	92	ENTER;
	93	SAVETMPS;
	94
	95	PUSHMARK(SP);
	96	XPUSHs(sv_2mortal(newSVpv(type, 0)));
	97	XPUSHs(sv_2mortal(newSVpv(name, 0)));
	98	XPUSHs(sv_2mortal(newSViv(offset)));
	99	PUTBACK;
	100
04a8a223	101	call_pv("Devel::Declare::linestr_callback", G_VOID\|G_DISCARD);
569ac469	102
569ac469	103	FREETMPS;
	104	LEAVE;
	105	}
	106
	107	char* dd_get_linestr(pTHX) {
	108	return SvPVX(PL_linestr);
	109	}
	110
	111	void dd_set_linestr(pTHX_ char* new_value) {
	112	int new_len = strlen(new_value);
	113	char* old_linestr = SvPVX(PL_linestr);
	114
	115	SvGROW(PL_linestr, strlen(new_value));
	116
	117	if (SvPVX(PL_linestr) != old_linestr)
	118	Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
	119
	120	memcpy(SvPVX(PL_linestr), new_value, new_len+1);
	121
	122	SvCUR_set(PL_linestr, new_len);
	123
	124	PL_bufend = SvPVX(PL_linestr) + new_len;
	125	}
	126
04a8a223	127	char* dd_get_lex_stuff(pTHX) {
	128	return SvPVX(PL_lex_stuff);
	129	}
	130
	131	char* dd_clear_lex_stuff(pTHX) {
	132	PL_lex_stuff = Nullsv;
	133	}
	134
	135	char* dd_get_curstash_name(pTHX) {
	136	return HvNAME(PL_curstash);
	137	}
	138
923c07a8	139	char* dd_move_past_token (pTHX_ char* s) {
	140
	141	/*
	142	* buffer will be at the beginning of the declarator, -unless- the
	143	* declarator is at EOL in which case it'll be the next useful line
	144	* so we don't short-circuit out if we don't find the declarator
	145	*/
	146
	147	while (s < PL_bufend && isSPACE(*s)) s++;
	148	if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
	149	s += strlen(PL_tokenbuf);
	150	return s;
	151	}
	152
04a8a223	153	int dd_toke_move_past_token (pTHX_ int offset) {
	154	char* base_s = SvPVX(PL_linestr) + offset;
	155	char* s = dd_move_past_token(aTHX_ base_s);
	156	return s - base_s;
	157	}
	158
923c07a8	159	int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
	160	char tmpbuf[sizeof PL_tokenbuf];
	161	char* base_s = SvPVX(PL_linestr) + offset;
	162	STRLEN len;
	163	char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
	164	return s - base_s;
	165	}
	166
	167	int dd_toke_scan_str(pTHX_ int offset) {
	168	char* base_s = SvPVX(PL_linestr) + offset;
	169	char* s = scan_str(base_s, FALSE, FALSE);
	170	return s - base_s;
	171	}
	172
	173	int dd_toke_skipspace(pTHX_ int offset) {
	174	char* base_s = SvPVX(PL_linestr) + offset;
	175	char* s = skipspace(base_s);
	176	return s - base_s;
	177	}
	178
94caac6e	179	/* replacement PL_check rv2cv entry */
94caac6e	180
bedac9ff	181	STATIC OP (dd_old_ck_rv2cv)(pTHX_ OP *op);
bedac9ff	182
94caac6e	183	STATIC OP dd_ck_rv2cv(pTHX_ OP o) {
	184	OP* kid;
	185	char* s;
0ba8c7aa	186	char* save_s;
94caac6e	187	char tmpbuf[sizeof PL_tokenbuf];
0ba8c7aa	188	char found_name[sizeof PL_tokenbuf];
0f070758	189	char* found_proto = NULL, *found_traits = NULL;
0ba8c7aa	190	STRLEN len = 0;
0ba8c7aa	191	int dd_flags;
9026391e	192	char* cb_args[6];
53e3ab32	193	dSP; /* define stack pointer for later call stuff */
	194	char* retstr;
	195	STRLEN n_a; /* for POPpx */
94caac6e	196
	197	o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
	198
	199	if (in_declare) {
	200	cb_args[0] = NULL;
dcca2c59	201	#ifdef DD_DEBUG
	202	printf("Deconstructing declare\n");
	203	printf("PL_bufptr: %s\n", PL_bufptr);
	204	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	205	printf("linestr: %s\n", SvPVX(PL_linestr));
	206	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	207	#endif
94caac6e	208	call_argv("Devel::Declare::done_declare", G_VOID\|G_DISCARD, cb_args);
0ba8c7aa	209	in_declare--;
dcca2c59	210	#ifdef DD_DEBUG
	211	printf("PL_bufptr: %s\n", PL_bufptr);
	212	printf("bufend at: %i\n", PL_bufend - PL_bufptr);
	213	printf("linestr: %s\n", SvPVX(PL_linestr));
	214	printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
	215	printf("actual len: %i\n", strlen(PL_bufptr));
	216	#endif
94caac6e	217	return o;
	218	}
	219
	220	kid = cUNOPo->op_first;
	221
	222	if (kid->op_type != OP_GV) /* not a GV so ignore */
	223	return o;
	224
	225	if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL)
	226	return o; /* not lexing? */
	227
72f20f69	228	/* I was doing this, but the CONST wrap can't so it didn't gain anything
72f20f69	229	stash = GvSTASH(kGVOP_gv); */
94caac6e	230
c630715a	231	#ifdef DD_DEBUG
72f20f69	232	printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
c630715a	233	#endif
94caac6e	234
72f20f69	235	dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
94caac6e	236
72f20f69	237	if (dd_flags == -1)
94caac6e	238	return o;
94caac6e	239
0ba8c7aa	240	#ifdef DD_DEBUG
	241	printf("dd_flags are: %i\n", dd_flags);
	242	#endif
	243
94caac6e	244	s = PL_bufptr; /* copy the current buffer pointer */
94caac6e	245
c630715a	246	DD_DEBUG_S
	247
	248	#ifdef DD_DEBUG
0ba8c7aa	249	printf("PL_tokenbuf: %s\n", PL_tokenbuf);
c630715a	250	#endif
c630715a	251
04a8a223	252	dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv), s);
94caac6e	253
53e3ab32	254	return o;
	255	}
	256
bedac9ff	257	STATIC OP (dd_old_ck_entereval)(pTHX_ OP *op);
bedac9ff	258
b7505981	259	OP* dd_pp_entereval(pTHX) {
	260	dSP;
	261	dPOPss;
	262	STRLEN len;
	263	const char* s;
	264	if (SvPOK(sv)) {
53e3ab32	265	#ifdef DD_DEBUG
b7505981	266	printf("mangling eval sv\n");
53e3ab32	267	#endif
b7505981	268	if (SvREADONLY(sv))
	269	sv = sv_2mortal(newSVsv(sv));
	270	s = SvPVX(sv);
	271	len = SvCUR(sv);
	272	if (!len \|\| s[len-1] != ';') {
	273	if (!(SvFLAGS(sv) & SVs_TEMP))
	274	sv = sv_2mortal(newSVsv(sv));
	275	sv_catpvn(sv, "\n;", 2);
53e3ab32	276	}
b7505981	277	SvGROW(sv, 8192);
53e3ab32	278	}
b7505981	279	PUSHs(sv);
	280	return PL_ppaddr[OP_ENTEREVAL](aTHX);
	281	}
53e3ab32	282
b7505981	283	STATIC OP dd_ck_entereval(pTHX_ OP o) {
b7505981	284	o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
d8e65fc8	285	if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
d8e65fc8	286	o->op_ppaddr = dd_pp_entereval;
94caac6e	287	return o;
	288	}
	289
6a0bcf35	290	static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
	291	{
	292	const I32 count = FILTER_READ(idx+1, sv, maxlen);
	293	SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
	294	/* filter_del(dd_filter_realloc); */
	295	return count;
	296	}
	297
bedac9ff	298	STATIC OP (dd_old_ck_const)(pTHX_ OP*op);
	299
	300	STATIC OP dd_ck_const(pTHX_ OP o) {
bedac9ff	301	int dd_flags;
bedac9ff	302	char* s;
04a8a223	303	char* name;
bedac9ff	304
	305	o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
	306
bedac9ff	307	/* don't try and look this up if it's not a string const */
	308	if (!SvPOK(cSVOPo->op_sv))
	309	return o;
	310
04a8a223	311	name = SvPVX(cSVOPo->op_sv);
	312
	313	dd_flags = dd_is_declarator(aTHX_ name);
bedac9ff	314
a9fb5fb1	315	if (dd_flags == -1)
bedac9ff	316	return o;
bedac9ff	317
bedac9ff	318	s = PL_bufptr;
bedac9ff	319
04a8a223	320	dd_linestr_callback(aTHX_ "const", name, s);
bedac9ff	321
bedac9ff	322	return o;
	323	}
	324
94caac6e	325	static int initialized = 0;
	326
	327	MODULE = Devel::Declare PACKAGE = Devel::Declare
	328
	329	PROTOTYPES: DISABLE
	330
	331	void
	332	setup()
	333	CODE:
	334	if (!initialized++) {
	335	dd_old_ck_rv2cv = PL_check[OP_RV2CV];
	336	PL_check[OP_RV2CV] = dd_ck_rv2cv;
b7505981	337	dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
b7505981	338	PL_check[OP_ENTEREVAL] = dd_ck_entereval;
bedac9ff	339	dd_old_ck_const = PL_check[OP_CONST];
bedac9ff	340	PL_check[OP_CONST] = dd_ck_const;
94caac6e	341	}
6a0bcf35	342	filter_add(dd_filter_realloc, NULL);
569ac469	343
	344	char*
	345	get_linestr()
	346	CODE:
	347	RETVAL = dd_get_linestr(aTHX);
	348	OUTPUT:
	349	RETVAL
923c07a8	350
	351	void
	352	set_linestr(char* new_value)
	353	CODE:
	354	dd_set_linestr(aTHX_ new_value);
	355
04a8a223	356	char*
	357	get_lex_stuff()
	358	CODE:
	359	RETVAL = dd_get_lex_stuff(aTHX);
	360	OUTPUT:
	361	RETVAL
	362
	363	void
	364	clear_lex_stuff()
	365	CODE:
	366	dd_clear_lex_stuff(aTHX);
	367
	368	char*
	369	get_curstash_name()
	370	CODE:
	371	RETVAL = dd_get_curstash_name(aTHX);
	372	OUTPUT:
	373	RETVAL
	374
923c07a8	375	int
	376	toke_scan_word(int offset, int handle_package)
	377	CODE:
	378	RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
	379	OUTPUT:
	380	RETVAL
	381
	382	int
04a8a223	383	toke_move_past_token(int offset);
	384	CODE:
	385	RETVAL = dd_toke_move_past_token(aTHX_ offset);
	386	OUTPUT:
	387	RETVAL
	388
	389	int
923c07a8	390	toke_scan_str(int offset);
	391	CODE:
	392	RETVAL = dd_toke_scan_str(aTHX_ offset);
	393	OUTPUT:
	394	RETVAL
	395
	396	int
	397	toke_skipspace(int offset)
	398	CODE:
	399	RETVAL = dd_toke_skipspace(aTHX_ offset);
	400	OUTPUT:
	401	RETVAL
04a8a223	402
	403	int
	404	get_in_declare()
	405	CODE:
	406	RETVAL = in_declare;
	407	OUTPUT:
	408	RETVAL
	409
	410	void
	411	set_in_declare(int value)
	412	CODE:
	413	in_declare = value;