-#define PERL_IN_TOKE_C
-#define PERL_CORE
-#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
+#include "hook_op_check.h"
#undef printf
#include "stolen_chunk_of_toke.c"
#include <stdio.h>
#include <string.h>
-#define LEX_NORMAL 10
-#define LEX_INTERPNORMAL 9
+#ifndef Newx
+# define Newx(v,n,t) New(0,v,n,t)
+#endif /* !Newx */
-/* placeholders for PL_check entries we wrap */
+static int dd_debug = 0;
-STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);
-STATIC OP *(*dd_old_ck_nextstate)(pTHX_ OP *op);
+#define LEX_NORMAL 10
+#define LEX_INTERPNORMAL 9
/* flag to trigger removal of temporary declaree sub */
static int in_declare = 0;
-/* replacement PL_check rv2cv entry */
+/* 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 */
-STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
- OP* kid;
- char* s;
- char tmpbuf[sizeof PL_tokenbuf];
- STRLEN len;
- HV *stash;
+#define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)
+
+#if defined(PL_parser) || defined(PERL_5_9_PLUS)
+#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;
- char* cb_args[4];
+ int dd_flags;
+
+ is_declarator = get_hv("Devel::Declare::declarators", FALSE);
+
+ if (!is_declarator)
+ return -1;
+
+ /* $declarators{$current_package_name} */
+
+ if (!HvNAME(PL_curstash))
+ return -1;
+
+ 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);
- o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
+ 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_lex_stuff(pTHX) {
+ return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
+}
+
+void dd_clear_lex_stuff(pTHX) {
+ if (DD_HAVE_PARSER)
+ PL_lex_stuff = (SV*)NULL;
+}
+
+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_ck_rv2cv(pTHX_ OP *o, void *user_data) {
+ OP* kid;
+ int dd_flags;
if (in_declare) {
- cb_args[0] = NULL;
- call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
- in_declare = 0;
+ 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));
+ }
+
+ dSP;
+
+ 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));
+ }
return o;
}
if (kid->op_type != OP_GV) /* not a GV so ignore */
return o;
- if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL)
+ if (!DD_AM_LEXING)
return o; /* not lexing? */
- stash = GvSTASH(kGVOP_gv);
-
- /* printf("Checking GV %s -> %s\n", HvNAME(stash), GvNAME(kGVOP_gv)); */
+ if (dd_debug) {
+ printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
+ }
- 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);
+ if (dd_debug) {
+ printf("dd_flags are: %i\n", dd_flags);
+ printf("PL_tokenbuf: %s\n", PL_tokenbuf);
+ }
- if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
- return o; /* not a hashref */
+ dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
- is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
+ return o;
+}
- is_declarator_flag_ref = hv_fetch(is_declarator_pack_hash, GvNAME(kGVOP_gv),
- strlen(GvNAME(kGVOP_gv)), FALSE);
+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);
+}
- if (!is_declarator_flag_ref || !SvTRUE(*is_declarator_flag_ref))
- return o;
+STATIC OP *dd_ck_entereval(pTHX_ OP *o, void *user_data) {
+ if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
+ o->op_ppaddr = dd_pp_entereval;
+ return o;
+}
- s = PL_bufptr; /* copy the current buffer pointer */
+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;
+}
- while (s < PL_bufend && isSPACE(*s)) s++;
- if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
- s += strlen(PL_tokenbuf);
- else
+STATIC OP *dd_ck_const(pTHX_ OP *o, void *user_data) {
+ int dd_flags;
+ char* name;
+
+ /* 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;
- /* find next word */
+ /* don't try and look this up if it's not a string const */
+ if (!SvPOK(cSVOPo->op_sv))
+ return o;
- s = skipspace(s);
+ name = SvPVX(cSVOPo->op_sv);
- /* 0 in arg 4 is allow_package - not trying that yet :) */
+ dd_flags = dd_is_declarator(aTHX_ name);
- s = scan_word(s, tmpbuf, sizeof tmpbuf, 0, &len);
+ if (dd_flags == -1)
+ return o;
- 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;
- }
+ dd_linestr_callback(aTHX_ "const", name);
- return o;
+ return o;
}
static int initialized = 0;
setup()
CODE:
if (!initialized++) {
- dd_old_ck_rv2cv = PL_check[OP_RV2CV];
- PL_check[OP_RV2CV] = dd_ck_rv2cv;
+ hook_op_check(OP_RV2CV, dd_ck_rv2cv, NULL);
+ hook_op_check(OP_ENTEREVAL, dd_ck_entereval, NULL);
+ hook_op_check(OP_CONST, dd_ck_const, NULL);
}
+ filter_add(dd_filter_realloc, NULL);
+
+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
-teardown()
+set_in_declare(int 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;
+ in_declare = value;
+
+BOOT:
+ if (getenv ("DD_DEBUG")) {
+ dd_debug = 1;
}
projects / p5sagit/Devel-Declare.git / blobdiff