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6b349a5c4c
The only uses of USE_LEFT in core now occur when SvGETMAGIC has already been called. So returning true for magical SVs is not neces- sary. In fact, it was never correct. Also, the code in do_vop (which handles bitwise operations on strings) to avoid an uninitialized warning had the same buggy SvGMAGICAL check. Now, the warning from $uninit += 1 is suppressed for all undefined vars, not just amagical ones. This causes 6 to-do tests in assignwarn.t to pass.
520 lines
18 KiB
C
520 lines
18 KiB
C
/* pp.h
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*
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* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
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* 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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#define PP(s) OP * Perl_##s(pTHX)
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/*
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=head1 Stack Manipulation Macros
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=for apidoc AmU||SP
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Stack pointer. This is usually handled by C<xsubpp>. See C<dSP> and
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C<SPAGAIN>.
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=for apidoc AmU||MARK
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Stack marker variable for the XSUB. See C<dMARK>.
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=for apidoc Am|void|PUSHMARK|SP
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Opening bracket for arguments on a callback. See C<PUTBACK> and
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L<perlcall>.
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=for apidoc Ams||dSP
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Declares a local copy of perl's stack pointer for the XSUB, available via
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the C<SP> macro. See C<SP>.
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=for apidoc ms||djSP
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Declare Just C<SP>. This is actually identical to C<dSP>, and declares
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a local copy of perl's stack pointer, available via the C<SP> macro.
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See C<SP>. (Available for backward source code compatibility with the
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old (Perl 5.005) thread model.)
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=for apidoc Ams||dMARK
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Declare a stack marker variable, C<mark>, for the XSUB. See C<MARK> and
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C<dORIGMARK>.
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=for apidoc Ams||dORIGMARK
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Saves the original stack mark for the XSUB. See C<ORIGMARK>.
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=for apidoc AmU||ORIGMARK
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The original stack mark for the XSUB. See C<dORIGMARK>.
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=for apidoc Ams||SPAGAIN
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Refetch the stack pointer. Used after a callback. See L<perlcall>.
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=cut */
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#undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */
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#define SP sp
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#define MARK mark
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#define TARG targ
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#define PUSHMARK(p) \
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STMT_START { \
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if (++PL_markstack_ptr == PL_markstack_max) \
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markstack_grow(); \
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*PL_markstack_ptr = (I32)((p) - PL_stack_base);\
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} STMT_END
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#define TOPMARK (*PL_markstack_ptr)
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#define POPMARK (*PL_markstack_ptr--)
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#define dSP SV **sp = PL_stack_sp
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#define djSP dSP
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#define dMARK register SV **mark = PL_stack_base + POPMARK
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#define dORIGMARK const I32 origmark = (I32)(mark - PL_stack_base)
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#define ORIGMARK (PL_stack_base + origmark)
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#define SPAGAIN sp = PL_stack_sp
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#define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END
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#define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
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#define dTARGETSTACKED SV * GETTARGETSTACKED
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#define GETTARGET targ = PAD_SV(PL_op->op_targ)
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#define dTARGET SV * GETTARGET
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#define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ))
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#define dATARGET SV * GETATARGET
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#define dTARG SV *targ
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#define NORMAL PL_op->op_next
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#define DIE return Perl_die
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/*
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=for apidoc Ams||PUTBACK
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Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>.
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See C<PUSHMARK> and L<perlcall> for other uses.
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=for apidoc Amn|SV*|POPs
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Pops an SV off the stack.
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=for apidoc Amn|char*|POPp
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Pops a string off the stack. Deprecated. New code should use POPpx.
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=for apidoc Amn|char*|POPpx
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Pops a string off the stack.
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=for apidoc Amn|char*|POPpbytex
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Pops a string off the stack which must consist of bytes i.e. characters < 256.
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=for apidoc Amn|NV|POPn
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Pops a double off the stack.
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=for apidoc Amn|IV|POPi
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Pops an integer off the stack.
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=for apidoc Amn|long|POPl
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Pops a long off the stack.
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=cut
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*/
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#define PUTBACK PL_stack_sp = sp
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#define RETURN return (PUTBACK, NORMAL)
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#define RETURNOP(o) return (PUTBACK, o)
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#define RETURNX(x) return (x, PUTBACK, NORMAL)
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#define POPs (*sp--)
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#define POPp (SvPVx(POPs, PL_na)) /* deprecated */
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#define POPpx (SvPVx_nolen(POPs))
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#define POPpconstx (SvPVx_nolen_const(POPs))
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#define POPpbytex (SvPVbytex_nolen(POPs))
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#define POPn (SvNVx(POPs))
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#define POPi ((IV)SvIVx(POPs))
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#define POPu ((UV)SvUVx(POPs))
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#define POPl ((long)SvIVx(POPs))
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#define POPul ((unsigned long)SvIVx(POPs))
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#ifdef HAS_QUAD
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#define POPq ((Quad_t)SvIVx(POPs))
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#define POPuq ((Uquad_t)SvUVx(POPs))
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#endif
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#define TOPs (*sp)
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#define TOPm1s (*(sp-1))
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#define TOPp1s (*(sp+1))
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#define TOPp (SvPV(TOPs, PL_na)) /* deprecated */
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#define TOPpx (SvPV_nolen(TOPs))
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#define TOPn (SvNV(TOPs))
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#define TOPi ((IV)SvIV(TOPs))
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#define TOPu ((UV)SvUV(TOPs))
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#define TOPl ((long)SvIV(TOPs))
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#define TOPul ((unsigned long)SvUV(TOPs))
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#ifdef HAS_QUAD
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#define TOPq ((Quad_t)SvIV(TOPs))
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#define TOPuq ((Uquad_t)SvUV(TOPs))
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#endif
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/* Go to some pains in the rare event that we must extend the stack. */
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/*
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=for apidoc Am|void|EXTEND|SP|int nitems
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Used to extend the argument stack for an XSUB's return values. Once
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used, guarantees that there is room for at least C<nitems> to be pushed
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onto the stack.
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=for apidoc Am|void|PUSHs|SV* sv
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Push an SV onto the stack. The stack must have room for this element.
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Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>,
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C<XPUSHs> and C<XPUSHmortal>.
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=for apidoc Am|void|PUSHp|char* str|STRLEN len
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Push a string onto the stack. The stack must have room for this element.
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The C<len> indicates the length of the string. Handles 'set' magic. Uses
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C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not
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call multiple C<TARG>-oriented macros to return lists from XSUB's - see
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C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>.
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=for apidoc Am|void|PUSHn|NV nv
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Push a double onto the stack. The stack must have room for this element.
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Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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called to declare it. Do not call multiple C<TARG>-oriented macros to
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return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and
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C<mXPUSHn>.
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=for apidoc Am|void|PUSHi|IV iv
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Push an integer onto the stack. The stack must have room for this element.
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Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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called to declare it. Do not call multiple C<TARG>-oriented macros to
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return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and
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C<mXPUSHi>.
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=for apidoc Am|void|PUSHu|UV uv
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Push an unsigned integer onto the stack. The stack must have room for this
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element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG>
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should be called to declare it. Do not call multiple C<TARG>-oriented
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macros to return lists from XSUB's - see C<mPUSHu> instead. See also
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C<XPUSHu> and C<mXPUSHu>.
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=for apidoc Am|void|XPUSHs|SV* sv
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Push an SV onto the stack, extending the stack if necessary. Does not
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handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>,
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C<PUSHs> and C<PUSHmortal>.
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=for apidoc Am|void|XPUSHp|char* str|STRLEN len
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Push a string onto the stack, extending the stack if necessary. The C<len>
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indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so
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C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call
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multiple C<TARG>-oriented macros to return lists from XSUB's - see
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C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>.
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=for apidoc Am|void|XPUSHn|NV nv
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Push a double onto the stack, extending the stack if necessary. Handles
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'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
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declare it. Do not call multiple C<TARG>-oriented macros to return lists
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from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>.
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=for apidoc Am|void|XPUSHi|IV iv
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Push an integer onto the stack, extending the stack if necessary. Handles
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'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
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declare it. Do not call multiple C<TARG>-oriented macros to return lists
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from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>.
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=for apidoc Am|void|XPUSHu|UV uv
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Push an unsigned integer onto the stack, extending the stack if necessary.
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Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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called to declare it. Do not call multiple C<TARG>-oriented macros to
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return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and
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C<mPUSHu>.
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=for apidoc Am|void|mPUSHs|SV* sv
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Push an SV onto the stack and mortalizes the SV. The stack must have room
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for this element. Does not use C<TARG>. See also C<PUSHs> and C<mXPUSHs>.
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=for apidoc Am|void|PUSHmortal
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Push a new mortal SV onto the stack. The stack must have room for this
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element. Does not use C<TARG>. See also C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>.
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=for apidoc Am|void|mPUSHp|char* str|STRLEN len
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Push a string onto the stack. The stack must have room for this element.
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The C<len> indicates the length of the string. Does not use C<TARG>.
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See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>.
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=for apidoc Am|void|mPUSHn|NV nv
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Push a double onto the stack. The stack must have room for this element.
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Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> and C<XPUSHn>.
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=for apidoc Am|void|mPUSHi|IV iv
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Push an integer onto the stack. The stack must have room for this element.
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Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> and C<XPUSHi>.
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=for apidoc Am|void|mPUSHu|UV uv
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Push an unsigned integer onto the stack. The stack must have room for this
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element. Does not use C<TARG>. See also C<PUSHu>, C<mXPUSHu> and C<XPUSHu>.
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=for apidoc Am|void|mXPUSHs|SV* sv
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Push an SV onto the stack, extending the stack if necessary and mortalizes
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the SV. Does not use C<TARG>. See also C<XPUSHs> and C<mPUSHs>.
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=for apidoc Am|void|XPUSHmortal
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Push a new mortal SV onto the stack, extending the stack if necessary.
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Does not use C<TARG>. See also C<XPUSHs>, C<PUSHmortal> and C<PUSHs>.
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=for apidoc Am|void|mXPUSHp|char* str|STRLEN len
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Push a string onto the stack, extending the stack if necessary. The C<len>
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indicates the length of the string. Does not use C<TARG>. See also C<XPUSHp>,
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C<mPUSHp> and C<PUSHp>.
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=for apidoc Am|void|mXPUSHn|NV nv
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Push a double onto the stack, extending the stack if necessary.
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Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and C<PUSHn>.
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=for apidoc Am|void|mXPUSHi|IV iv
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Push an integer onto the stack, extending the stack if necessary.
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Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and C<PUSHi>.
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=for apidoc Am|void|mXPUSHu|UV uv
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Push an unsigned integer onto the stack, extending the stack if necessary.
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Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> and C<PUSHu>.
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=cut
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*/
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#define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (int)(n)) { \
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sp = stack_grow(sp,p, (int) (n)); \
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} } STMT_END
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/* Same thing, but update mark register too. */
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#define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \
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const int markoff = mark - PL_stack_base; \
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sp = stack_grow(sp,p,(int) (n)); \
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mark = PL_stack_base + markoff; \
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} } STMT_END
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#define PUSHs(s) (*++sp = (s))
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#define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END
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#define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END
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#define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END
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#define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END
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#define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END
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#define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END
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#define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END
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#define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END
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#define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END
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#define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END
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#define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END
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#define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END
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#define mPUSHs(s) PUSHs(sv_2mortal(s))
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#define PUSHmortal PUSHs(sv_newmortal())
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#define mPUSHp(p,l) PUSHs(newSVpvn_flags((p), (l), SVs_TEMP))
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#define mPUSHn(n) sv_setnv(PUSHmortal, (NV)(n))
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#define mPUSHi(i) sv_setiv(PUSHmortal, (IV)(i))
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#define mPUSHu(u) sv_setuv(PUSHmortal, (UV)(u))
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#define mXPUSHs(s) XPUSHs(sv_2mortal(s))
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#define XPUSHmortal XPUSHs(sv_newmortal())
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#define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); mPUSHp((p), (l)); } STMT_END
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#define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv(PUSHmortal, (NV)(n)); } STMT_END
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#define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv(PUSHmortal, (IV)(i)); } STMT_END
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#define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv(PUSHmortal, (UV)(u)); } STMT_END
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#define SETs(s) (*sp = s)
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#define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
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#define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END
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#define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END
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#define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
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#define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END
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#define dTOPss SV *sv = TOPs
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#define dPOPss SV *sv = POPs
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#define dTOPnv NV value = TOPn
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#define dPOPnv NV value = POPn
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#define dPOPnv_nomg NV value = (sp--, SvNV_nomg(TOPp1s))
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#define dTOPiv IV value = TOPi
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#define dPOPiv IV value = POPi
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#define dTOPuv UV value = TOPu
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#define dPOPuv UV value = POPu
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#ifdef HAS_QUAD
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#define dTOPqv Quad_t value = TOPu
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#define dPOPqv Quad_t value = POPu
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#define dTOPuqv Uquad_t value = TOPuq
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#define dPOPuqv Uquad_t value = POPuq
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#endif
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#define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s)
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#define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n)
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#define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i)
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#define USE_LEFT(sv) \
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(SvOK(sv) || !(PL_op->op_flags & OPf_STACKED))
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#define dPOPXiirl_ul_nomg(X) \
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IV right = (sp--, SvIV_nomg(TOPp1s)); \
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SV *leftsv = CAT2(X,s); \
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IV left = USE_LEFT(leftsv) ? SvIV_nomg(leftsv) : 0
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#define dPOPPOPssrl dPOPXssrl(POP)
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#define dPOPPOPnnrl dPOPXnnrl(POP)
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#define dPOPPOPiirl dPOPXiirl(POP)
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#define dPOPTOPssrl dPOPXssrl(TOP)
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#define dPOPTOPnnrl dPOPXnnrl(TOP)
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#define dPOPTOPnnrl_nomg \
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NV right = SvNV_nomg(TOPs); NV left = (sp--, SvNV_nomg(TOPs))
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#define dPOPTOPiirl dPOPXiirl(TOP)
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#define dPOPTOPiirl_ul_nomg dPOPXiirl_ul_nomg(TOP)
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#define dPOPTOPiirl_nomg \
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IV right = SvIV_nomg(TOPs); IV left = (sp--, SvIV_nomg(TOPs))
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#define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes))
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#define RETPUSHNO RETURNX(PUSHs(&PL_sv_no))
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#define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef))
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|
|
#define RETSETYES RETURNX(SETs(&PL_sv_yes))
|
|
#define RETSETNO RETURNX(SETs(&PL_sv_no))
|
|
#define RETSETUNDEF RETURNX(SETs(&PL_sv_undef))
|
|
|
|
#define ARGTARG PL_op->op_targ
|
|
|
|
/* See OPpTARGET_MY: */
|
|
#define MAXARG (PL_op->op_private & 15)
|
|
|
|
#define SWITCHSTACK(f,t) \
|
|
STMT_START { \
|
|
AvFILLp(f) = sp - PL_stack_base; \
|
|
PL_stack_base = AvARRAY(t); \
|
|
PL_stack_max = PL_stack_base + AvMAX(t); \
|
|
sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \
|
|
PL_curstack = t; \
|
|
} STMT_END
|
|
|
|
#define EXTEND_MORTAL(n) \
|
|
STMT_START { \
|
|
if (PL_tmps_ix + (n) >= PL_tmps_max) \
|
|
tmps_grow(n); \
|
|
} STMT_END
|
|
|
|
#define AMGf_noright 1
|
|
#define AMGf_noleft 2
|
|
#define AMGf_assign 4
|
|
#define AMGf_unary 8
|
|
#define AMGf_numeric 0x10 /* for Perl_try_amagic_bin */
|
|
#define AMGf_set 0x20 /* for Perl_try_amagic_bin */
|
|
|
|
|
|
/* do SvGETMAGIC on the stack args before checking for overload */
|
|
|
|
#define tryAMAGICun_MG(method, flags) STMT_START { \
|
|
if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \
|
|
&& Perl_try_amagic_un(aTHX_ method, flags)) \
|
|
return NORMAL; \
|
|
} STMT_END
|
|
#define tryAMAGICbin_MG(method, flags) STMT_START { \
|
|
if ( ((SvFLAGS(TOPm1s)|SvFLAGS(TOPs)) & (SVf_ROK|SVs_GMG)) \
|
|
&& Perl_try_amagic_bin(aTHX_ method, flags)) \
|
|
return NORMAL; \
|
|
} STMT_END
|
|
|
|
#define AMG_CALLunary(sv,meth) \
|
|
amagic_call(sv,&PL_sv_undef, meth, AMGf_noright | AMGf_unary)
|
|
|
|
/* No longer used in core. Use AMG_CALLunary instead */
|
|
#define AMG_CALLun(sv,meth) AMG_CALLunary(sv, CAT2(meth,_amg))
|
|
|
|
#define tryAMAGICunTARGET(meth, shift, jump) \
|
|
STMT_START { \
|
|
dATARGET; \
|
|
dSP; \
|
|
SV *tmpsv; \
|
|
SV *arg= sp[shift]; \
|
|
if (SvAMAGIC(arg) && \
|
|
(tmpsv = amagic_call(arg, &PL_sv_undef, meth, \
|
|
AMGf_noright | AMGf_unary))) { \
|
|
SPAGAIN; \
|
|
sp += shift; \
|
|
sv_setsv(TARG, tmpsv); \
|
|
if (opASSIGN) \
|
|
sp--; \
|
|
SETTARG; \
|
|
PUTBACK; \
|
|
if (jump) { \
|
|
OP *jump_o = NORMAL->op_next; \
|
|
while (jump_o->op_type == OP_NULL) \
|
|
jump_o = jump_o->op_next; \
|
|
assert(jump_o->op_type == OP_ENTERSUB); \
|
|
PL_markstack_ptr--; \
|
|
return jump_o->op_next; \
|
|
} \
|
|
return NORMAL; \
|
|
} \
|
|
} STMT_END
|
|
|
|
/* This is no longer used anywhere in the core. You might wish to consider
|
|
calling amagic_deref_call() directly, as it has a cleaner interface. */
|
|
#define tryAMAGICunDEREF(meth) \
|
|
STMT_START { \
|
|
sv = amagic_deref_call(*sp, CAT2(meth,_amg)); \
|
|
SPAGAIN; \
|
|
} STMT_END
|
|
|
|
|
|
#define opASSIGN (PL_op->op_flags & OPf_STACKED)
|
|
#define SETsv(sv) STMT_START { \
|
|
if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \
|
|
{ sv_setsv(TARG, (sv)); SETTARG; } \
|
|
else SETs(sv); } STMT_END
|
|
|
|
#define SETsvUN(sv) STMT_START { \
|
|
if (SvFLAGS(TARG) & SVs_PADMY) \
|
|
{ sv_setsv(TARG, (sv)); SETTARG; } \
|
|
else SETs(sv); } STMT_END
|
|
|
|
/*
|
|
=for apidoc mU||LVRET
|
|
True if this op will be the return value of an lvalue subroutine
|
|
|
|
=cut */
|
|
#define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub())
|
|
|
|
#define SvCANEXISTDELETE(sv) \
|
|
(!SvRMAGICAL(sv) \
|
|
|| ((mg = mg_find((const SV *) sv, PERL_MAGIC_tied)) \
|
|
&& (stash = SvSTASH(SvRV(SvTIED_obj(MUTABLE_SV(sv), mg)))) \
|
|
&& gv_fetchmethod_autoload(stash, "EXISTS", TRUE) \
|
|
&& gv_fetchmethod_autoload(stash, "DELETE", TRUE) \
|
|
) \
|
|
)
|
|
|
|
#ifdef PERL_CORE
|
|
|
|
/* These are just for Perl_tied_method(), which is not part of the public API.
|
|
Use 0x04 rather than the next available bit, to help the compiler if the
|
|
architecture can generate more efficient instructions. */
|
|
# define TIED_METHOD_MORTALIZE_NOT_NEEDED 0x04
|
|
# define TIED_METHOD_ARGUMENTS_ON_STACK 0x08
|
|
# define TIED_METHOD_SAY 0x10
|
|
|
|
/* Used in various places that need to dereference a glob or globref */
|
|
# define MAYBE_DEREF_GV_flags(sv,phlags) \
|
|
( \
|
|
(void)(phlags & SV_GMAGIC && (SvGETMAGIC(sv),0)), \
|
|
isGV_with_GP(sv) \
|
|
? (GV *)sv \
|
|
: SvROK(sv) && SvTYPE(SvRV(sv)) <= SVt_PVLV && \
|
|
(SvGETMAGIC(SvRV(sv)), isGV_with_GP(SvRV(sv))) \
|
|
? (GV *)SvRV(sv) \
|
|
: NULL \
|
|
)
|
|
# define MAYBE_DEREF_GV(sv) MAYBE_DEREF_GV_flags(sv,SV_GMAGIC)
|
|
# define MAYBE_DEREF_GV_nomg(sv) MAYBE_DEREF_GV_flags(sv,0)
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indentation-style: bsd
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*
|
|
* ex: set ts=8 sts=4 sw=4 noet:
|
|
*/
|