/* cop.h
*
- * Copyright (c) 1991-1997, Larry Wall
+ * Copyright (c) 1991-1999, 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*)
+#define CopFILEGV(c) (c)->cop_filegv
+#define CopFILEGV_set(c,gv) ((c)->cop_filegv = gv)
+#define CopFILESV(c) (CopFILEGV(c) ? GvSV(CopFILEGV(c)) : Nullsv)
+#define CopFILEAV(c) (CopFILEGV(c) ? GvAV(CopFILEGV(c)) : Nullav)
+#define CopFILE(c) (CopFILESV(c) ? SvPVX(CopFILESV(c)) : Nullch)
+#define CopLINE(c) ((c)->cop_line)
+#define CopLINE_set(c,l) ((c)->cop_line = (l))
+
/*
* Here we have some enormously heavy (or at least ponderous) wizardry.
*/
AV * argarray;
U16 olddepth;
U8 hasargs;
+ U8 lval; /* XXX merge lval and hasargs? */
};
#define PUSHSUB(cx) \
cx->blk_sub.cv = cv; \
cx->blk_sub.olddepth = CvDEPTH(cv); \
- cx->blk_sub.hasargs = hasargs;
+ cx->blk_sub.hasargs = hasargs; \
+ cx->blk_sub.lval = PL_op->op_private & \
+ (OPpLVAL_INTRO|OPpENTERSUB_INARGS);
#define PUSHFORMAT(cx) \
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) \
- { struct block_sub cxsub; \
- POPSUB1(cx); \
- POPSUB2(); }
-
-#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(defgv)); \
- GvAV(defgv) = cxsub.savearray; \
+ SvREFCNT_dec(GvAV(PL_defgv)); \
+ GvAV(PL_defgv) = cx->blk_sub.savearray; \
} STMT_END
#endif /* USE_THREADS */
-#define POPSUB2() \
- if (cxsub.hasargs) { \
+#define POPSUB(cx,sv) \
+ STMT_START { \
+ if (cx->blk_sub.hasargs) { \
POPSAVEARRAY(); \
- /* destroy arg array */ \
- av_clear(cxsub.argarray); \
- AvREAL_off(cxsub.argarray); \
+ /* abandon @_ if it got reified */ \
+ if (AvREAL(cx->blk_sub.argarray)) { \
+ SSize_t fill = AvFILLp(cx->blk_sub.argarray); \
+ SvREFCNT_dec(cx->blk_sub.argarray); \
+ cx->blk_sub.argarray = newAV(); \
+ av_extend(cx->blk_sub.argarray, fill); \
+ AvFLAGS(cx->blk_sub.argarray) = AVf_REIFY; \
+ PL_curpad[0] = (SV*)cx->blk_sub.argarray; \
+ } \
} \
- if (cxsub.cv) { \
- if (!(CvDEPTH(cxsub.cv) = cxsub.olddepth)) \
- SvREFCNT_dec(cxsub.cv); \
- }
+ sv = (SV*)cx->blk_sub.cv; \
+ if (sv && (CvDEPTH((CV*)sv) = cx->blk_sub.olddepth)) \
+ sv = Nullsv; \
+ } STMT_END
+
+#define LEAVESUB(sv) \
+ STMT_START { \
+ if (sv) \
+ SvREFCNT_dec(sv); \
+ } STMT_END
#define POPFORMAT(cx) \
setdefout(cx->blk_sub.dfoutgv); \
};
#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; \
cx->blk_loop.iterix = -1;
#define POPLOOP(cx) \
- { struct block_loop cxloop; \
- POPLOOP1(cx); \
- POPLOOP2(); }
-
-#define POPLOOP1(cx) \
- cxloop = cx->blk_loop; /* because DESTROY may clobber *cx */ \
- newsp = stack_base + cxloop.resetsp;
-
-#define POPLOOP2() \
- SvREFCNT_dec(cxloop.iterlval); \
- if (cxloop.itervar) { \
- SvREFCNT_dec(*cxloop.itervar); \
- *cxloop.itervar = cxloop.itersave; \
+ SvREFCNT_dec(cx->blk_loop.iterlval); \
+ if (cx->blk_loop.itervar) { \
+ sv_2mortal(*(cx->blk_loop.itervar)); \
+ *(cx->blk_loop.itervar) = cx->blk_loop.itersave; \
} \
- if (cxloop.iterary && cxloop.iterary != curstack) \
- SvREFCNT_dec(cxloop.iterary);
+ if (cx->blk_loop.iterary && cx->blk_loop.iterary != PL_curstack)\
+ SvREFCNT_dec(cx->blk_loop.iterary);
/* context common to subroutines, evals and loops */
struct block {
/* 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]); )
+ DEBUG_l( PerlIO_printf(Perl_debug_log, "Entering block %ld, type %s\n", \
+ (long)cxstack_ix, PL_block_type[CxTYPE(cx)]); )
/* 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; \
- DEBUG_l( PerlIO_printf(PerlIO_stderr(), "Leaving block %ld, type %s\n", \
- (long)cxstack_ix+1,block_type[cx->cx_type]); )
+ 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(Perl_debug_log, "Leaving block %ld, type %s\n", \
+ (long)cxstack_ix+1,PL_block_type[CxTYPE(cx)]); )
/* 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, \
+ PL_curpm = cx->blk_oldpm
/* substitution context */
struct subst {
I32 sbu_iters;
I32 sbu_maxiters;
- I32 sbu_safebase;
+ I32 sbu_rflags;
I32 sbu_oldsave;
bool sbu_once;
bool sbu_rxtainted;
};
#define sb_iters cx_u.cx_subst.sbu_iters
#define sb_maxiters cx_u.cx_subst.sbu_maxiters
-#define sb_safebase cx_u.cx_subst.sbu_safebase
+#define sb_rflags cx_u.cx_subst.sbu_rflags
#define sb_oldsave cx_u.cx_subst.sbu_oldsave
#define sb_once cx_u.cx_subst.sbu_once
#define sb_rxtainted cx_u.cx_subst.sbu_rxtainted
#define PUSHSUBST(cx) CXINC, cx = &cxstack[cxstack_ix], \
cx->sb_iters = iters, \
cx->sb_maxiters = maxiters, \
- cx->sb_safebase = safebase, \
+ cx->sb_rflags = r_flags, \
cx->sb_oldsave = oldsave, \
cx->sb_once = once, \
cx->sb_rxtainted = rxtainted, \
rxres_free(&cx->sb_rxres)
struct context {
- I32 cx_type; /* what kind of context this is */
+ U32 cx_type; /* what kind of context this is */
union {
struct block cx_blk;
struct subst cx_subst;
} cx_u;
};
+
+#define CXTYPEMASK 0xff
#define CXt_NULL 0
#define CXt_SUB 1
#define CXt_EVAL 2
#define CXt_SUBST 4
#define CXt_BLOCK 5
+/* private flags for CXt_EVAL */
+#define CXp_REAL 0x00000100 /* truly eval'', not a lookalike */
+
+#define CxTYPE(c) ((c)->cx_type & CXTYPEMASK)
+#define CxREALEVAL(c) (((c)->cx_type & (CXt_EVAL|CXp_REAL)) == (CXt_EVAL|CXp_REAL))
+
#define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc()))
/* "gimme" values */
#define G_ARRAY 1
#define G_VOID 128 /* skip this bit when adding flags below */
-/* extra flags for perl_call_* routines */
+/* 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 $@, don't overwrite it */
#define G_NODEBUG 32 /* Disable debugging at toplevel. */
+/* flag bits for PL_in_eval */
+#define EVAL_NULL 0 /* not in an eval */
+#define EVAL_INEVAL 1 /* some enclosing scope is an eval */
+#define EVAL_WARNONLY 2 /* used by yywarn() when calling yyerror() */
+#define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */
+
/* Support for switching (stack and block) contexts.
* This ensures magic doesn't invalidate local stack and cx pointers.
*/
-#define SI_UNDEF 0
-#define SI_MAIN 1
-#define SI_MAGIC 2
-#define SI_SORT 3
-#define SI_SIGNAL 4
-#define SI_OVERLOAD 5
-#define SI_DESTROY 6
-#define SI_WARNHOOK 7
-#define SI_DIEHOOK 8
+#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 */
typedef struct stackinfo PERL_SI;
-#define cxstack (curstackinfo->si_cxstack)
-#define cxstack_ix (curstackinfo->si_cxix)
-#define cxstack_max (curstackinfo->si_cxmax)
+#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 curstackinfo->si_markbase = markstack_ptr
+# define SET_MARKBASE PL_curstackinfo->si_markbase = PL_markstack_ptr
#else
# define SET_MARKBASE NOOP
#endif
-#define PUSHSTACK(type) \
+#define PUSHSTACKi(type) \
STMT_START { \
- PERL_SI *next = curstackinfo->si_next; \
+ PERL_SI *next = PL_curstackinfo->si_next; \
if (!next) { \
next = new_stackinfo(32, 2048/sizeof(PERL_CONTEXT) - 1); \
- next->si_prev = curstackinfo; \
- curstackinfo->si_next = next; \
+ next->si_prev = PL_curstackinfo; \
+ PL_curstackinfo->si_next = next; \
} \
next->si_type = type; \
next->si_cxix = -1; \
AvFILLp(next->si_stack) = 0; \
- SWITCHSTACK(curstack,next->si_stack); \
- curstackinfo = next; \
+ SWITCHSTACK(PL_curstack,next->si_stack); \
+ PL_curstackinfo = next; \
SET_MARKBASE; \
} STMT_END
-#define POPSTACK() \
+#define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN)
+
+/* POPSTACK works with PL_stack_sp, so it may need to be bracketed by
+ * PUTBACK/SPAGAIN to flush/refresh any local SP that may be active */
+#define POPSTACK \
STMT_START { \
- PERL_SI *prev = curstackinfo->si_prev; \
+ djSP; \
+ PERL_SI *prev = PL_curstackinfo->si_prev; \
if (!prev) { \
- PerlIO_printf(PerlIO_stderr(), "panic: POPSTACK\n"); \
+ PerlIO_printf(Perl_error_log, "panic: POPSTACK\n"); \
my_exit(1); \
} \
- SWITCHSTACK(curstack,prev->si_stack); \
+ SWITCHSTACK(PL_curstack,prev->si_stack); \
/* don't free prev here, free them all at the END{} */ \
- curstackinfo = prev; \
+ PL_curstackinfo = prev; \
} STMT_END
#define POPSTACK_TO(s) \
STMT_START { \
- while (curstack != s) { \
+ while (PL_curstack != s) { \
dounwind(-1); \
- POPSTACK(); \
+ POPSTACK; \
} \
} STMT_END