=for apidoc AmU||MARK
Stack marker variable for the XSUB. See C<dMARK>.
-=for apidoc Ams||PUSHMARK
+=for apidoc Am|void|PUSHMARK|SP
Opening bracket for arguments on a callback. See C<PUTBACK> and
L<perlcall>.
#define MARK mark
#define TARG targ
-#define PUSHMARK(p) if (++PL_markstack_ptr == PL_markstack_max) \
- markstack_grow(); \
- *PL_markstack_ptr = (p) - PL_stack_base
+#define PUSHMARK(p) \
+ STMT_START { \
+ if (++PL_markstack_ptr == PL_markstack_max) \
+ markstack_grow(); \
+ *PL_markstack_ptr = (p) - PL_stack_base; \
+ } STMT_END
#define TOPMARK (*PL_markstack_ptr)
#define POPMARK (*PL_markstack_ptr--)
#define ORIGMARK (PL_stack_base + origmark)
#define SPAGAIN sp = PL_stack_sp
-#define MSPAGAIN sp = PL_stack_sp; mark = ORIGMARK
+#define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END
#define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
#define dTARGETSTACKED SV * GETTARGETSTACKED
#define NORMAL PL_op->op_next
#define DIE return Perl_die
+#define DIE_NULL return DieNull
/*
=for apidoc Ams||PUTBACK
#define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN)
#define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN)
#define tryAMAGICunTARGET(meth, shift) \
- { dSP; sp--; /* get TARGET from below PL_stack_sp */ \
+ STMT_START { dSP; sp--; /* get TARGET from below PL_stack_sp */ \
{ dTARGETSTACKED; \
- { dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}}
-
-#define setAGAIN(ref) sv = ref; \
- if (!SvROK(ref)) \
- Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \
- if (ref != arg && SvRV(ref) != SvRV(arg)) { \
- arg = ref; \
- goto am_again; \
- }
+ { dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}} STMT_END
+
+#define setAGAIN(ref) \
+ STMT_START { \
+ sv = ref; \
+ if (!SvROK(ref)) \
+ Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \
+ if (ref != arg && SvRV(ref) != SvRV(arg)) { \
+ arg = ref; \
+ goto am_again; \
+ } \
+ } STMT_END
#define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0)