-#define PERL_IN_TOKE_C
#define PERL_CORE
#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include <stdio.h>
#include <string.h>
-#define DD_DEBUG 0
+#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);
#define LEX_NORMAL 10
#define LEX_INTERPNORMAL 9
-/* placeholders for PL_check entries we wrap */
-
-STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);
-STATIC OP *(*dd_old_ck_nextstate)(pTHX_ OP *op);
-
/* 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;
+
+ char* new_linestr;
+ int count;
+
+ dSP;
+
+ ENTER;
+ SAVETMPS;
+
+ PUSHMARK(SP);
+ XPUSHs(sv_2mortal(newSVpv(type, 0)));
+ XPUSHs(sv_2mortal(newSVpv(name, 0)));
+ XPUSHs(sv_2mortal(newSViv(offset)));
+ PUTBACK;
+
+ count = call_pv("Devel::Declare::linestr_callback", G_SCALAR);
+
+ SPAGAIN;
+
+ if (count != 1)
+ Perl_croak(aTHX_ "linestr_callback didn't return a value, bailing out");
+
+ printf("linestr_callback returned: %s\n", POPp);
+
+ PUTBACK;
+ 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_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_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];
- STRLEN len;
- HV *stash;
- HV* is_declarator;
- SV** is_declarator_pack_ref;
- HV* is_declarator_pack_hash;
- SV** is_declarator_flag_ref;
- char* cb_args[4];
+ 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 = 0;
+ 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;
}
if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL)
return o; /* not lexing? */
- stash = GvSTASH(kGVOP_gv);
+ /* 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(stash), GvNAME(kGVOP_gv));
+ printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
#endif
- is_declarator = get_hv("Devel::Declare::declarators", FALSE);
+ dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
- if (!is_declarator)
+ if (dd_flags == -1)
return o;
- is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(stash),
- strlen(HvNAME(stash)), FALSE);
+#ifdef DD_DEBUG
+ printf("dd_flags are: %i\n", dd_flags);
+#endif
- if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
- return o; /* not a hashref */
+ s = PL_bufptr; /* copy the current buffer pointer */
- is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
+ DD_DEBUG_S
- is_declarator_flag_ref = hv_fetch(is_declarator_pack_hash, GvNAME(kGVOP_gv),
- strlen(GvNAME(kGVOP_gv)), FALSE);
+#ifdef DD_DEBUG
+ printf("PL_tokenbuf: %s\n", PL_tokenbuf);
+#endif
+
+ s = dd_move_past_token(aTHX_ s);
+
+ DD_DEBUG_S
+
+ if (dd_flags & DD_HANDLE_NAME) {
+
+ /* find next word */
+
+ s = skipspace(s);
+
+ DD_DEBUG_S
+
+ /* kill the :: added in the ck_const */
+ if (*s == ':')
+ *s++ = ' ';
+ if (*s == ':')
+ *s++ = ' ';
+
+ /* arg 4 is allow_package */
+
+ s = scan_word(s, tmpbuf, sizeof tmpbuf, dd_flags & DD_HANDLE_PACKAGE, &len);
+
+ DD_DEBUG_S
+
+ if (len) {
+ strcpy(found_name, tmpbuf);
+#ifdef DD_DEBUG
+ printf("Found %s\n", found_name);
+#endif
+ }
+ }
+
+ if (dd_flags & DD_HANDLE_PROTO) {
+
+ s = skipspace(s);
+
+ if (*s == '(') { /* found a prototype-ish thing */
+ save_s = s;
+ s = scan_str(s, FALSE, FALSE); /* no keep_quoted, no keep_delims */
+#ifdef DD_HAS_TRAITS
+ {
+ char *traitstart = s = skipspace(s);
+
+ while (*s && *s != '{') ++s;
+ if (*s) {
+ int tlen = s - traitstart;
+ Newx(found_traits, tlen+1, char);
+ Copy(traitstart, found_traits, tlen, char);
+ found_traits[tlen] = 0;
+#ifdef DD_DEBUG
+ printf("found traits..... (%s)\n", found_traits);
+#endif
+ }
+ }
+#endif
+
+ if (SvPOK(PL_lex_stuff)) {
+#ifdef DD_DEBUG
+ printf("Found proto %s\n", SvPVX(PL_lex_stuff));
+#endif
+ found_proto = SvPVX(PL_lex_stuff);
+ if (len) /* foo name () => foo name X, only foo parsed so works */
+ *save_s++ = ' ';
+ else /* foo () => foo =X, TOKEN('&') won't handle foo X */
+ *save_s++ = '=';
+ *save_s++ = 'X';
+ while (save_s < s) {
+ *save_s++ = ' ';
+ }
+#ifdef DD_DEBUG
+ printf("Curbuf %s\n", PL_bufptr);
+#endif
+ }
+ }
+ }
+
+ if (!len)
+ found_name[0] = 0;
+
+#ifdef DD_DEBUG
+ printf("Calling init_declare\n");
+#endif
+ cb_args[0] = HvNAME(PL_curstash);
+ cb_args[1] = GvNAME(kGVOP_gv);
+ cb_args[2] = HvNAME(PL_curstash);
+ cb_args[3] = found_name;
+ cb_args[4] = found_proto;
+ cb_args[5] = found_traits;
+ cb_args[6] = NULL;
+
+ if (len && found_proto)
+ in_declare = 2;
+ else if (len || found_proto)
+ in_declare = 1;
+ if (found_proto)
+ PL_lex_stuff = Nullsv;
+ s = skipspace(s);
+#ifdef DD_DEBUG
+ printf("cur buf: %s\n", s);
+ printf("bufend at: %i\n", PL_bufend - s);
+ printf("linestr: %s\n", SvPVX(PL_linestr));
+ printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
+#endif
+
+ if (*s++ == '{') {
+ call_argv("Devel::Declare::init_declare", G_SCALAR, cb_args);
+ SPAGAIN;
+ retstr = POPpx;
+ PUTBACK;
+ if (retstr && strlen(retstr)) {
+ const char* old_start = SvPVX(PL_linestr);
+ int start_diff;
+ const int old_len = SvCUR(PL_linestr);
+#ifdef DD_DEBUG
+ printf("Got string %s\n", retstr);
+#endif
+ SvGROW(PL_linestr, (STRLEN)(old_len + strlen(retstr)));
+ if (start_diff = SvPVX(PL_linestr) - old_start) {
+ Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
+ }
+ memmove(s+strlen(retstr), s, (PL_bufend - s)+1);
+ memmove(s, retstr, strlen(retstr));
+ SvCUR_set(PL_linestr, old_len + strlen(retstr));
+ PL_bufend += strlen(retstr);
+#ifdef DD_DEBUG
+ printf("cur buf: %s\n", s);
+ printf("PL_bufptr: %s\n", PL_bufptr);
+ printf("bufend at: %i\n", PL_bufend - s);
+ printf("linestr: %s\n", SvPVX(PL_linestr));
+ printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
+ printf("tokenbuf now: %s\n", PL_tokenbuf);
+#endif
+ }
+ } else {
+ call_argv("Devel::Declare::init_declare", G_VOID|G_DISCARD, cb_args);
+ }
+ return o;
+}
+
+STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);
- if (!is_declarator_flag_ref || !SvTRUE(*is_declarator_flag_ref))
+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 tmpbuf[sizeof PL_tokenbuf];
+ char found_name[sizeof PL_tokenbuf];
+ STRLEN len = 0;
+
+ 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;
- s = PL_bufptr; /* copy the current buffer pointer */
+ dd_flags = dd_is_declarator(aTHX_ SvPVX(cSVOPo->op_sv));
- DD_DEBUG_S
+ if (dd_flags == -1)
+ return o;
+
+ if (!(dd_flags & DD_HANDLE_NAME))
+ return o; /* if we're not handling name, method intuiting not an issue */
#ifdef DD_DEBUG
- printf("PL_tokenbuf: %s", PL_tokenbuf);
+ printf("Think I found a declarator %s\n", PL_tokenbuf);
+ printf("linestr: %s\n", SvPVX(PL_linestr));
#endif
- /*
- * 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
- */
+ s = PL_bufptr;
- while (s < PL_bufend && isSPACE(*s)) s++;
- if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
- s += strlen(PL_tokenbuf);
+ s = dd_move_past_token(aTHX_ s);
+
+ /* dd_linestr_callback(aTHX_ "const", SvPVX(cSVOPo->op_sv), s); */
DD_DEBUG_S
DD_DEBUG_S
- /* 0 in arg 4 is allow_package - not trying that yet :) */
+ /* arg 4 is allow_package */
- s = scan_word(s, tmpbuf, sizeof tmpbuf, 0, &len);
+ s = scan_word(s, tmpbuf, sizeof tmpbuf, dd_flags & DD_HANDLE_PACKAGE, &len);
DD_DEBUG_S
if (len) {
- cb_args[0] = HvNAME(stash);
- cb_args[1] = GvNAME(kGVOP_gv);
- cb_args[2] = tmpbuf;
- cb_args[3] = NULL;
- call_argv("Devel::Declare::init_declare", G_VOID|G_DISCARD, cb_args);
- in_declare = 1;
- }
+ const char* old_start = SvPVX(PL_linestr);
+ int start_diff;
+ const int old_len = SvCUR(PL_linestr);
- return o;
+ strcpy(found_name, tmpbuf);
+#ifdef DD_DEBUG
+ printf("Found %s\n", found_name);
+#endif
+
+ s -= len;
+ SvGROW(PL_linestr, (STRLEN)(old_len + 2));
+ if (start_diff = SvPVX(PL_linestr) - old_start) {
+ Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
+ }
+ memmove(s+2, s, (PL_bufend - s)+1);
+ *s = ':';
+ s++;
+ *s = ':';
+ SvCUR_set(PL_linestr, old_len + 2);
+ PL_bufend += 2;
+ }
+ return o;
}
static int initialized = 0;
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
-teardown()
+set_linestr(char* new_value)
CODE:
- /* ensure we only uninit when number of teardown calls matches
- number of setup calls */
- if (initialized && !--initialized) {
- PL_check[OP_RV2CV] = dd_old_ck_rv2cv;
- }
+ dd_set_linestr(aTHX_ new_value);
+
+int
+toke_scan_word(int offset, int handle_package)
+ CODE:
+ RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
+ 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
projects / p5sagit/Devel-Declare.git / blobdiff