/* cop.h
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
U32 cop_seq; /* parse sequence number */
I32 cop_arybase; /* array base this line was compiled with */
line_t cop_line; /* line # of this command */
+ SV * cop_warnings; /* lexical warnings bitmask */
};
#define Nullcop Null(COP*)
CV * cv;
GV * gv;
GV * dfoutgv;
+#ifndef USE_THREADS
AV * savearray;
+#endif /* USE_THREADS */
AV * argarray;
U16 olddepth;
U8 hasargs;
cx->blk_sub.cv = cv; \
cx->blk_sub.gv = gv; \
cx->blk_sub.hasargs = 0; \
- cx->blk_sub.dfoutgv = defoutgv; \
+ cx->blk_sub.dfoutgv = PL_defoutgv; \
(void)SvREFCNT_inc(cx->blk_sub.dfoutgv)
#define POPSUB(cx) \
#define POPSUB1(cx) \
cxsub = cx->blk_sub; /* because DESTROY may clobber *cx */
+#ifdef USE_THREADS
+#define POPSAVEARRAY() NOOP
+#else
+#define POPSAVEARRAY() \
+ STMT_START { \
+ SvREFCNT_dec(GvAV(PL_defgv)); \
+ GvAV(PL_defgv) = cxsub.savearray; \
+ } STMT_END
+#endif /* USE_THREADS */
+
#define POPSUB2() \
if (cxsub.hasargs) { \
- /* put back old @_ */ \
- SvREFCNT_dec(GvAV(defgv)); \
- GvAV(defgv) = cxsub.savearray; \
+ POPSAVEARRAY(); \
/* destroy arg array */ \
av_clear(cxsub.argarray); \
AvREAL_off(cxsub.argarray); \
};
#define PUSHEVAL(cx,n,fgv) \
- cx->blk_eval.old_in_eval = in_eval; \
- cx->blk_eval.old_op_type = op->op_type; \
+ cx->blk_eval.old_in_eval = PL_in_eval; \
+ cx->blk_eval.old_op_type = PL_op->op_type; \
cx->blk_eval.old_name = n; \
- cx->blk_eval.old_eval_root = eval_root; \
- cx->blk_eval.cur_text = linestr;
+ cx->blk_eval.old_eval_root = PL_eval_root; \
+ cx->blk_eval.cur_text = PL_linestr;
#define POPEVAL(cx) \
- in_eval = cx->blk_eval.old_in_eval; \
+ PL_in_eval = cx->blk_eval.old_in_eval; \
optype = cx->blk_eval.old_op_type; \
- eval_root = cx->blk_eval.old_eval_root;
+ PL_eval_root = cx->blk_eval.old_eval_root;
/* loop context */
struct block_loop {
SV * itersave;
SV * iterlval;
AV * iterary;
- I32 iterix;
+ IV iterix;
+ IV itermax;
};
#define PUSHLOOP(cx, ivar, s) \
- cx->blk_loop.label = curcop->cop_label; \
- cx->blk_loop.resetsp = s - stack_base; \
+ cx->blk_loop.label = PL_curcop->cop_label; \
+ cx->blk_loop.resetsp = s - PL_stack_base; \
cx->blk_loop.redo_op = cLOOP->op_redoop; \
cx->blk_loop.next_op = cLOOP->op_nextop; \
cx->blk_loop.last_op = cLOOP->op_lastop; \
#define POPLOOP1(cx) \
cxloop = cx->blk_loop; /* because DESTROY may clobber *cx */ \
- newsp = stack_base + cxloop.resetsp;
+ newsp = PL_stack_base + cxloop.resetsp;
#define POPLOOP2() \
SvREFCNT_dec(cxloop.iterlval); \
SvREFCNT_dec(*cxloop.itervar); \
*cxloop.itervar = cxloop.itersave; \
} \
- if (cxloop.iterary && cxloop.iterary != curstack) \
+ if (cxloop.iterary && cxloop.iterary != PL_curstack) \
SvREFCNT_dec(cxloop.iterary);
/* context common to subroutines, evals and loops */
/* Enter a block. */
#define PUSHBLOCK(cx,t,sp) CXINC, cx = &cxstack[cxstack_ix], \
cx->cx_type = t, \
- cx->blk_oldsp = sp - stack_base, \
- cx->blk_oldcop = curcop, \
- cx->blk_oldmarksp = markstack_ptr - markstack, \
- cx->blk_oldscopesp = scopestack_ix, \
- cx->blk_oldretsp = retstack_ix, \
- cx->blk_oldpm = curpm, \
+ cx->blk_oldsp = sp - PL_stack_base, \
+ cx->blk_oldcop = PL_curcop, \
+ cx->blk_oldmarksp = PL_markstack_ptr - PL_markstack, \
+ cx->blk_oldscopesp = PL_scopestack_ix, \
+ cx->blk_oldretsp = PL_retstack_ix, \
+ cx->blk_oldpm = PL_curpm, \
cx->blk_gimme = gimme; \
DEBUG_l( PerlIO_printf(PerlIO_stderr(), "Entering block %ld, type %s\n", \
(long)cxstack_ix, block_type[t]); )
/* Exit a block (RETURN and LAST). */
#define POPBLOCK(cx,pm) cx = &cxstack[cxstack_ix--], \
- newsp = stack_base + cx->blk_oldsp, \
- curcop = cx->blk_oldcop, \
- markstack_ptr = markstack + cx->blk_oldmarksp, \
- scopestack_ix = cx->blk_oldscopesp, \
- retstack_ix = cx->blk_oldretsp, \
- pm = cx->blk_oldpm, \
- gimme = cx->blk_gimme; \
+ newsp = PL_stack_base + cx->blk_oldsp, \
+ PL_curcop = cx->blk_oldcop, \
+ PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \
+ PL_scopestack_ix = cx->blk_oldscopesp, \
+ PL_retstack_ix = cx->blk_oldretsp, \
+ pm = cx->blk_oldpm, \
+ gimme = cx->blk_gimme; \
DEBUG_l( PerlIO_printf(PerlIO_stderr(), "Leaving block %ld, type %s\n", \
(long)cxstack_ix+1,block_type[cx->cx_type]); )
/* Continue a block elsewhere (NEXT and REDO). */
-#define TOPBLOCK(cx) cx = &cxstack[cxstack_ix], \
- stack_sp = stack_base + cx->blk_oldsp, \
- markstack_ptr = markstack + cx->blk_oldmarksp, \
- scopestack_ix = cx->blk_oldscopesp, \
- retstack_ix = cx->blk_oldretsp
+#define TOPBLOCK(cx) cx = &cxstack[cxstack_ix], \
+ PL_stack_sp = PL_stack_base + cx->blk_oldsp, \
+ PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \
+ PL_scopestack_ix = cx->blk_oldscopesp, \
+ PL_retstack_ix = cx->blk_oldretsp
/* substitution context */
struct subst {
char * sbu_s;
char * sbu_m;
char * sbu_strend;
- char * sbu_subbase;
+ void * sbu_rxres;
REGEXP * sbu_rx;
};
#define sb_iters cx_u.cx_subst.sbu_iters
#define sb_s cx_u.cx_subst.sbu_s
#define sb_m cx_u.cx_subst.sbu_m
#define sb_strend cx_u.cx_subst.sbu_strend
-#define sb_subbase cx_u.cx_subst.sbu_subbase
+#define sb_rxres cx_u.cx_subst.sbu_rxres
#define sb_rx cx_u.cx_subst.sbu_rx
#define PUSHSUBST(cx) CXINC, cx = &cxstack[cxstack_ix], \
cx->sb_s = s, \
cx->sb_m = m, \
cx->sb_strend = strend, \
+ cx->sb_rxres = Null(void*), \
cx->sb_rx = rx, \
- cx->cx_type = CXt_SUBST
+ cx->cx_type = CXt_SUBST; \
+ rxres_save(&cx->sb_rxres, rx)
-#define POPSUBST(cx) cxstack_ix--
+#define POPSUBST(cx) cx = &cxstack[cxstack_ix--]; \
+ rxres_free(&cx->sb_rxres)
struct context {
I32 cx_type; /* what kind of context this is */
/* "gimme" values */
#define G_SCALAR 0
#define G_ARRAY 1
+#define G_VOID 128 /* skip this bit when adding flags below */
/* extra flags for perl_call_* routines */
#define G_DISCARD 2 /* Call FREETMPS. */
#define G_EVAL 4 /* Assume eval {} around subroutine call. */
#define G_NOARGS 8 /* Don't construct a @_ array. */
-#define G_KEEPERR 16 /* Append errors to $@ rather than overwriting it */
+#define G_KEEPERR 16 /* Append errors to $@, don't overwrite it */
+#define G_NODEBUG 32 /* Disable debugging at toplevel. */
+
+/* Support for switching (stack and block) contexts.
+ * This ensures magic doesn't invalidate local stack and cx pointers.
+ */
+
+#define PERLSI_UNKNOWN -1
+#define PERLSI_UNDEF 0
+#define PERLSI_MAIN 1
+#define PERLSI_MAGIC 2
+#define PERLSI_SORT 3
+#define PERLSI_SIGNAL 4
+#define PERLSI_OVERLOAD 5
+#define PERLSI_DESTROY 6
+#define PERLSI_WARNHOOK 7
+#define PERLSI_DIEHOOK 8
+#define PERLSI_REQUIRE 9
+
+struct stackinfo {
+ AV * si_stack; /* stack for current runlevel */
+ PERL_CONTEXT * si_cxstack; /* context stack for runlevel */
+ I32 si_cxix; /* current context index */
+ I32 si_cxmax; /* maximum allocated index */
+ I32 si_type; /* type of runlevel */
+ struct stackinfo * si_prev;
+ struct stackinfo * si_next;
+ I32 * si_markbase; /* where markstack begins for us.
+ * currently used only with DEBUGGING,
+ * but not #ifdef-ed for bincompat */
+};
+
+typedef struct stackinfo PERL_SI;
+
+#define cxstack (PL_curstackinfo->si_cxstack)
+#define cxstack_ix (PL_curstackinfo->si_cxix)
+#define cxstack_max (PL_curstackinfo->si_cxmax)
+
+#ifdef DEBUGGING
+# define SET_MARKBASE PL_curstackinfo->si_markbase = PL_markstack_ptr
+#else
+# define SET_MARKBASE NOOP
+#endif
+
+#define PUSHSTACKi(type) \
+ STMT_START { \
+ PERL_SI *next = PL_curstackinfo->si_next; \
+ if (!next) { \
+ next = new_stackinfo(32, 2048/sizeof(PERL_CONTEXT) - 1); \
+ next->si_prev = PL_curstackinfo; \
+ PL_curstackinfo->si_next = next; \
+ } \
+ next->si_type = type; \
+ next->si_cxix = -1; \
+ AvFILLp(next->si_stack) = 0; \
+ SWITCHSTACK(PL_curstack,next->si_stack); \
+ PL_curstackinfo = next; \
+ SET_MARKBASE; \
+ } STMT_END
+
+#define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN)
+
+#define POPSTACK \
+ STMT_START { \
+ PERL_SI *prev = PL_curstackinfo->si_prev; \
+ if (!prev) { \
+ PerlIO_printf(PerlIO_stderr(), "panic: POPSTACK\n"); \
+ my_exit(1); \
+ } \
+ SWITCHSTACK(PL_curstack,prev->si_stack); \
+ /* don't free prev here, free them all at the END{} */ \
+ PL_curstackinfo = prev; \
+ } STMT_END
+
+#define POPSTACK_TO(s) \
+ STMT_START { \
+ while (PL_curstack != s) { \
+ dounwind(-1); \
+ POPSTACK; \
+ } \
+ } STMT_END
projects / p5sagit/p5-mst-13.2.git / blobdiff