#include <stdio.h>
#include <string.h>
+#define PERL_VERSION_DECIMAL(r,v,s) (r*1000000 + v*1000 + s)
+#define PERL_DECIMAL_VERSION \
+ PERL_VERSION_DECIMAL(PERL_REVISION,PERL_VERSION,PERL_SUBVERSION)
+#define PERL_VERSION_GE(r,v,s) \
+ (PERL_DECIMAL_VERSION >= PERL_VERSION_DECIMAL(r,v,s))
+
#ifndef Newx
# define Newx(v,n,t) New(0,v,n,t)
#endif /* !Newx */
+#define DD_DEBUGf_UPDATED_LINESTR 1
+#define DD_DEBUGf_TRACE 2
+
+#define DD_DEBUG_UPDATED_LINESTR (dd_debug & DD_DEBUGf_UPDATED_LINESTR)
+#define DD_DEBUG_TRACE (dd_debug & DD_DEBUGf_TRACE)
static int dd_debug = 0;
+#define DD_CONST_VIA_RV2CV PERL_VERSION_GE(5,11,2)
+
#define LEX_NORMAL 10
#define LEX_INTERPNORMAL 9
#define DD_AM_LEXING DD_AM_LEXING_CHECK
#endif
-static OP *previous_op = NULL;
-
/* thing that decides whether we're dealing with a declarator */
int dd_is_declarator(pTHX_ char* name) {
/* $declarators{$current_package_name} */
if (!HvNAME(PL_curstash))
- return -1;
+ return -1;
is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
strlen(HvNAME(PL_curstash)), 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)
+ || !SvIOK(*is_declarator_flag_ref)
|| !SvTRUE(*is_declarator_flag_ref))
return -1;
unsigned int new_len = strlen(new_value);
if (SvLEN(PL_linestr) < new_len) {
- croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
+ croak("PL_linestr not long enough, was Devel::Declare loaded soon enough in %s",
+ CopFILE(&PL_compiling)
+ );
}
- 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;
+
+ if ( DD_DEBUG_UPDATED_LINESTR && PERLDB_LINE && PL_curstash != PL_debstash) {
+ // Cribbed from toke.c
+ SV * const sv = NEWSV(85,0);
+
+ sv_upgrade(sv, SVt_PVMG);
+ sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr);
+ (void)SvIOK_on(sv);
+ SvIV_set(sv, 0);
+ av_store(CopFILEAV(&PL_compiling),(I32)CopLINE(&PL_compiling),sv);
+ }
}
char* dd_get_lex_stuff(pTHX) {
}
int dd_toke_scan_str(pTHX_ int offset) {
+ STRLEN remaining = sv_len(PL_linestr) - offset;
+ SV* line_copy = newSVsv(PL_linestr);
char* base_s = SvPVX(PL_linestr) + offset;
char* s = scan_str(base_s, FALSE, FALSE);
+ if (s != base_s && sv_len(PL_lex_stuff) > remaining) {
+ int ret = (s - SvPVX(PL_linestr)) + remaining;
+ sv_catsv(line_copy, PL_linestr);
+ dd_set_linestr(aTHX_ SvPV_nolen(line_copy));
+ SvREFCNT_dec(line_copy);
+ return ret;
+ }
return s - base_s;
}
int dd_toke_skipspace(pTHX_ int offset) {
char* base_s = SvPVX(PL_linestr) + offset;
- char* s = skipspace(base_s);
+ char* s = skipspace_force(base_s);
return s - base_s;
}
+static void call_done_declare(pTHX) {
+ dSP;
+
+ if (DD_DEBUG_TRACE) {
+ 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));
+ }
+
+ ENTER;
+ SAVETMPS;
+
+ PUSHMARK(SP);
+
+ call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD);
+
+ FREETMPS;
+ LEAVE;
+
+ if (DD_DEBUG_TRACE) {
+ 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));
+ }
+}
+
+static int dd_handle_const(pTHX_ char *name);
+
/* replacement PL_check rv2cv entry */
STATIC OP *dd_ck_rv2cv(pTHX_ OP *o, void *user_data) {
- dSP;
OP* kid;
int dd_flags;
PERL_UNUSED_VAR(user_data);
if (in_declare) {
- 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));
- }
-
- ENTER;
- SAVETMPS;
-
- PUSHMARK(SP);
-
- call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD);
-
- FREETMPS;
- LEAVE;
-
- 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));
- }
+ call_done_declare(aTHX);
return o;
}
if (!DD_AM_LEXING)
return o; /* not lexing? */
- if (dd_debug) {
+ if (DD_DEBUG_TRACE) {
printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
}
if (dd_flags == -1)
return o;
- if (dd_debug) {
+ if (DD_DEBUG_TRACE) {
printf("dd_flags are: %i\n", dd_flags);
printf("PL_tokenbuf: %s\n", PL_tokenbuf);
}
+#if DD_CONST_VIA_RV2CV
+ if (PL_expect != XOPERATOR) {
+ if (!dd_handle_const(aTHX_ GvNAME(kGVOP_gv)))
+ return o;
+ CopLINE(PL_curcop) = PL_copline;
+ /* The parser behaviour that we're simulating depends on what comes
+ after the declarator. */
+ if (*skipspace(PL_bufptr + strlen(GvNAME(kGVOP_gv))) != '(') {
+ if (in_declare) {
+ call_done_declare(aTHX);
+ } else {
+ dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
+ }
+ }
+ return o;
+ }
+#endif /* DD_CONST_VIA_RV2CV */
+
dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
return o;
#endif
sv = POPs;
if (SvPOK(sv)) {
- if (dd_debug) {
+ if (DD_DEBUG_TRACE) {
printf("mangling eval sv\n");
}
if (SvREADONLY(sv))
return count;
}
+static int dd_handle_const(pTHX_ char *name) {
+ switch (PL_lex_inwhat) {
+ case OP_QR:
+ case OP_MATCH:
+ case OP_SUBST:
+ case OP_TRANS:
+ case OP_BACKTICK:
+ case OP_STRINGIFY:
+ return 0;
+ break;
+ default:
+ break;
+ }
+
+ if (strnEQ(PL_bufptr, "->", 2)) {
+ return 0;
+ }
+
+ {
+ char buf[256];
+ STRLEN len;
+ char *s = PL_bufptr;
+ STRLEN old_offset = PL_bufptr - SvPVX(PL_linestr);
+
+ s = scan_word(s, buf, sizeof buf, FALSE, &len);
+ if (strnEQ(buf, name, len)) {
+ char *d;
+ SV *inject = newSVpvn(SvPVX(PL_linestr), PL_bufptr - SvPVX(PL_linestr));
+ sv_catpvn(inject, buf, len);
+
+ d = peekspace(s);
+ sv_catpvn(inject, s, d - s);
+
+ if ((PL_bufend - d) >= 2 && strnEQ(d, "=>", 2)) {
+ return 0;
+ }
+
+ sv_catpv(inject, d);
+ dd_set_linestr(aTHX_ SvPV_nolen(inject));
+ PL_bufptr = SvPVX(PL_linestr) + old_offset;
+ SvREFCNT_dec (inject);
+ }
+ }
+
+ dd_linestr_callback(aTHX_ "const", name);
+
+ return 1;
+}
+
+#if !DD_CONST_VIA_RV2CV
+
STATIC OP *dd_ck_const(pTHX_ OP *o, void *user_data) {
int dd_flags;
char* name;
PERL_UNUSED_VAR(user_data);
+ if (DD_HAVE_PARSER && PL_expect == XOPERATOR) {
+ return o;
+ }
+
/* if this is set, we just grabbed a delimited string or something,
not a bareword, so NO TOUCHY */
if (dd_flags == -1)
return o;
- dd_linestr_callback(aTHX_ "const", name);
+ dd_handle_const(aTHX_ name);
return o;
}
-STATIC OP *
-remember_previous_op (pTHX_ OP *o, void *user_data)
-{
- PERL_UNUSED_VAR (user_data);
- previous_op = o;
- return o;
-}
+#endif /* !DD_CONST_VIA_RV2CV */
static int initialized = 0;
void
setup()
- PREINIT:
- I32 i;
CODE:
if (!initialized++) {
hook_op_check(OP_RV2CV, dd_ck_rv2cv, NULL);
hook_op_check(OP_ENTEREVAL, dd_ck_entereval, NULL);
+#if !DD_CONST_VIA_RV2CV
hook_op_check(OP_CONST, dd_ck_const, NULL);
- }
- for (i = 0; i < OP_max; i++) {
- (void)hook_op_check(i, remember_previous_op, NULL);
+#endif /* !DD_CONST_VIA_RV2CV */
}
filter_add(dd_filter_realloc, NULL);
in_declare = value;
BOOT:
- if (getenv ("DD_DEBUG")) {
- dd_debug = 1;
+{
+ char *endptr;
+ char *debug_str = getenv ("DD_DEBUG");
+ if (debug_str) {
+ dd_debug = strtol (debug_str, &endptr, 10);
+ if (*endptr != '\0') {
+ dd_debug = 0;
+ }
}
+}
projects / p5sagit/Devel-Declare.git / blobdiff