-#define SAVEt_ITEM 0
-#define SAVEt_SV 1
-#define SAVEt_AV 2
-#define SAVEt_HV 3
-#define SAVEt_INT 4
-#define SAVEt_LONG 5
-#define SAVEt_I32 6
-#define SAVEt_IV 7
-#define SAVEt_SPTR 8
-#define SAVEt_APTR 9
-#define SAVEt_HPTR 10
-#define SAVEt_PPTR 11
-#define SAVEt_NSTAB 12
-#define SAVEt_SVREF 13
-#define SAVEt_GP 14
-#define SAVEt_FREESV 15
-#define SAVEt_FREEOP 16
-#define SAVEt_FREEPV 17
-#define SAVEt_CLEARSV 18
-#define SAVEt_DELETE 19
-#define SAVEt_DESTRUCTOR 20
-#define SAVEt_REGCONTEXT 21
-#define SAVEt_STACK_POS 22
-#define SAVEt_I16 23
-#define SAVEt_AELEM 24
-#define SAVEt_HELEM 25
-#define SAVEt_OP 26
-
-#define SSCHECK(need) if (savestack_ix + need > savestack_max) savestack_grow()
-#define SSPUSHINT(i) (savestack[savestack_ix++].any_i32 = (I32)(i))
-#define SSPUSHLONG(i) (savestack[savestack_ix++].any_long = (long)(i))
-#define SSPUSHIV(i) (savestack[savestack_ix++].any_iv = (IV)(i))
-#define SSPUSHPTR(p) (savestack[savestack_ix++].any_ptr = (void*)(p))
-#define SSPUSHDPTR(p) (savestack[savestack_ix++].any_dptr = (p))
-#define SSPOPINT (savestack[--savestack_ix].any_i32)
-#define SSPOPLONG (savestack[--savestack_ix].any_long)
-#define SSPOPIV (savestack[--savestack_ix].any_iv)
-#define SSPOPPTR (savestack[--savestack_ix].any_ptr)
-#define SSPOPDPTR (savestack[--savestack_ix].any_dptr)
-
-#define SAVETMPS save_int((int*)&tmps_floor), tmps_floor = tmps_ix
-#define FREETMPS if (tmps_ix > tmps_floor) free_tmps()
+/* scope.h
+ *
+ * Copyright (C) 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2001,
+ * 2002, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
+ */
+
+#define SAVEt_ITEM 0
+#define SAVEt_SV 1
+#define SAVEt_AV 2
+#define SAVEt_HV 3
+#define SAVEt_INT 4
+#define SAVEt_LONG 5
+#define SAVEt_I32 6
+#define SAVEt_IV 7
+#define SAVEt_SPTR 8
+#define SAVEt_APTR 9
+#define SAVEt_HPTR 10
+#define SAVEt_PPTR 11
+#define SAVEt_NSTAB 12
+#define SAVEt_SVREF 13
+#define SAVEt_GP 14
+#define SAVEt_FREESV 15
+#define SAVEt_FREEOP 16
+#define SAVEt_FREEPV 17
+#define SAVEt_CLEARSV 18
+#define SAVEt_DELETE 19
+#define SAVEt_DESTRUCTOR 20
+#define SAVEt_REGCONTEXT 21
+#define SAVEt_STACK_POS 22
+#define SAVEt_I16 23
+#define SAVEt_AELEM 24
+#define SAVEt_HELEM 25
+#define SAVEt_OP 26
+#define SAVEt_HINTS 27
+#define SAVEt_ALLOC 28
+#define SAVEt_GENERIC_SVREF 29
+#define SAVEt_DESTRUCTOR_X 30
+#define SAVEt_VPTR 31
+#define SAVEt_I8 32
+#define SAVEt_COMPPAD 33
+#define SAVEt_GENERIC_PVREF 34
+#define SAVEt_PADSV_AND_MORTALIZE 35
+#define SAVEt_MORTALIZESV 36
+#define SAVEt_SHARED_PVREF 37
+#define SAVEt_BOOL 38
+#define SAVEt_SET_SVFLAGS 39
+#define SAVEt_SAVESWITCHSTACK 40
+#define SAVEt_COP_ARYBASE 41
+#define SAVEt_RE_STATE 42
+#define SAVEt_COMPILE_WARNINGS 43
+#define SAVEt_STACK_CXPOS 44
+#define SAVEt_PARSER 45
+
+#define SAVEf_SETMAGIC 1
+
+#define save_helem(hv,key,sptr) save_helem_flags(hv,key,sptr,SAVEf_SETMAGIC)
+
+#ifndef SCOPE_SAVES_SIGNAL_MASK
+#define SCOPE_SAVES_SIGNAL_MASK 0
+#endif
+
+#define SSCHECK(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow()
+#define SSGROW(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow_cnt(need)
+#define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i))
+#define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i))
+#define SSPUSHBOOL(p) (PL_savestack[PL_savestack_ix++].any_bool = (p))
+#define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i))
+#define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p))
+#define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p))
+#define SSPUSHDXPTR(p) (PL_savestack[PL_savestack_ix++].any_dxptr = (p))
+#define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32)
+#define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long)
+#define SSPOPBOOL (PL_savestack[--PL_savestack_ix].any_bool)
+#define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv)
+#define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr)
+#define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr)
+#define SSPOPDXPTR (PL_savestack[--PL_savestack_ix].any_dxptr)
+
+/*
+=head1 Callback Functions
+
+=for apidoc Ams||SAVETMPS
+Opening bracket for temporaries on a callback. See C<FREETMPS> and
+L<perlcall>.
+
+=for apidoc Ams||FREETMPS
+Closing bracket for temporaries on a callback. See C<SAVETMPS> and
+L<perlcall>.
+
+=for apidoc Ams||ENTER
+Opening bracket on a callback. See C<LEAVE> and L<perlcall>.
+
+=for apidoc Ams||LEAVE
+Closing bracket on a callback. See C<ENTER> and L<perlcall>.
+
+=cut
+*/
+
+#define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix
+#define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps()
#ifdef DEBUGGING
#define ENTER \
STMT_START { \
push_scope(); \
- DEBUG_l(WITH_THR(deb("ENTER scope %ld at %s:%d\n", \
- scopestack_ix, __FILE__, __LINE__))); \
+ DEBUG_SCOPE("ENTER") \
} STMT_END
#define LEAVE \
STMT_START { \
- DEBUG_l(WITH_THR(deb("LEAVE scope %ld at %s:%d\n", \
- scopestack_ix, __FILE__, __LINE__))); \
+ DEBUG_SCOPE("LEAVE") \
pop_scope(); \
} STMT_END
#else
#define ENTER push_scope()
#define LEAVE pop_scope()
#endif
-#define LEAVE_SCOPE(old) if (savestack_ix > old) leave_scope(old)
-
-/*
- * Not using SOFT_CAST on SAVEFREESV and SAVEFREESV
- * because these are used for several kinds of pointer values
- */
-#define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i))
-#define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i))
-#define SAVEINT(i) save_int(SOFT_CAST(int*)&(i))
-#define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i))
-#define SAVELONG(l) save_long(SOFT_CAST(long*)&(l))
+#define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old)
+
+#define SAVEI8(i) save_I8((I8*)&(i))
+#define SAVEI16(i) save_I16((I16*)&(i))
+#define SAVEI32(i) save_I32((I32*)&(i))
+#define SAVEINT(i) save_int((int*)&(i))
+#define SAVEIV(i) save_iv((IV*)&(i))
+#define SAVELONG(l) save_long((long*)&(l))
+#define SAVEBOOL(b) save_bool((bool*)&(b))
#define SAVESPTR(s) save_sptr((SV**)&(s))
-#define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s))
-#define SAVEFREESV(s) save_freesv((SV*)(s))
-#define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o))
-#define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p))
-#define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv))
+#define SAVEPPTR(s) save_pptr((char**)&(s))
+#define SAVEVPTR(s) save_vptr((void*)&(s))
+#define SAVEPADSVANDMORTALIZE(s) save_padsv_and_mortalize(s)
+#define SAVEFREESV(s) save_freesv(MUTABLE_SV(s))
+#define SAVEMORTALIZESV(s) save_mortalizesv(MUTABLE_SV(s))
+#define SAVEFREEOP(o) save_freeop((OP*)(o))
+#define SAVEFREEPV(p) save_freepv((char*)(p))
+#define SAVECLEARSV(sv) save_clearsv((SV**)&(sv))
+#define SAVEGENERICSV(s) save_generic_svref((SV**)&(s))
+#define SAVEGENERICPV(s) save_generic_pvref((char**)&(s))
+#define SAVESHAREDPV(s) save_shared_pvref((char**)&(s))
+#define SAVESETSVFLAGS(sv,mask,val) save_set_svflags(sv,mask,val)
#define SAVEDELETE(h,k,l) \
- save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l))
-#ifdef PERL_OBJECT
-#define CALLDESTRUCTOR this->*SSPOPDPTR
+ save_delete(MUTABLE_HV(h), (char*)(k), (I32)(l))
#define SAVEDESTRUCTOR(f,p) \
- save_destructor((DESTRUCTORFUNC)(FUNC_NAME_TO_PTR(f)), \
- SOFT_CAST(void*)(p))
-#else
-#define CALLDESTRUCTOR *SSPOPDPTR
-#define SAVEDESTRUCTOR(f,p) \
- save_destructor(SOFT_CAST(void(*)_((void*)))(FUNC_NAME_TO_PTR(f)), \
- SOFT_CAST(void*)(p))
-#endif
-#define SAVESTACK_POS() STMT_START { \
- SSCHECK(2); \
- SSPUSHINT(stack_sp - stack_base); \
- SSPUSHINT(SAVEt_STACK_POS); \
- } STMT_END
+ save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), (void*)(p))
+
+#define SAVEDESTRUCTOR_X(f,p) \
+ save_destructor_x((DESTRUCTORFUNC_t)(f), (void*)(p))
+
+#define SAVESTACK_POS() \
+ STMT_START { \
+ SSCHECK(2); \
+ SSPUSHINT(PL_stack_sp - PL_stack_base); \
+ SSPUSHINT(SAVEt_STACK_POS); \
+ } STMT_END
+
#define SAVEOP() save_op()
-/* A jmpenv packages the state required to perform a proper non-local jump.
- * Note that there is a start_env initialized when perl starts, and top_env
- * points to this initially, so top_env should always be non-null.
- *
- * Existence of a non-null top_env->je_prev implies it is valid to call
- * (*je_jump)() at that runlevel. Always use the macros below! They
- * manage most of the complexity for you.
- *
- * je_mustcatch, when set at any runlevel to TRUE, means eval ops must
- * establish a local jmpenv to handle exception traps. Care must be taken
- * to restore the previous value of je_mustcatch before exiting the
- * stack frame iff JMPENV_PUSH was not called in that stack frame.
- *
- * The support for C++ try/throw causes a small loss of flexibility.
- * No longer is it possible to place the body of exception-protected
- * code in the same C function as JMPENV_PUSH &etc. Older code that
- * does this will continue to work with set/longjmp, but cannot use
- * C++ exceptions.
- *
- * GSAR 19970327
- * JPRIT 19980613 (C++ update)
- */
+#define SAVEHINTS() \
+ STMT_START { \
+ SSCHECK(4); \
+ if (PL_hints & HINT_LOCALIZE_HH) { \
+ SSPUSHPTR(GvHV(PL_hintgv)); \
+ GvHV(PL_hintgv) = Perl_hv_copy_hints_hv(aTHX_ GvHV(PL_hintgv)); \
+ } \
+ if (PL_compiling.cop_hints_hash) { \
+ HINTS_REFCNT_LOCK; \
+ PL_compiling.cop_hints_hash->refcounted_he_refcnt++; \
+ HINTS_REFCNT_UNLOCK; \
+ } \
+ SSPUSHPTR(PL_compiling.cop_hints_hash); \
+ SSPUSHINT(PL_hints); \
+ SSPUSHINT(SAVEt_HINTS); \
+ } STMT_END
-#define JMP_NORMAL 0
-#define JMP_ABNORMAL 1 /* shouldn't happen */
-#define JMP_MYEXIT 2 /* exit */
-#define JMP_EXCEPTION 3 /* die */
-
-/* None of the JMPENV fields should be accessed directly.
- Please use the macros below! */
-struct jmpenv {
- struct jmpenv * je_prev;
- int je_stat; /* JMP_* reason for setjmp() */
- bool je_mustcatch; /* will need a new TRYBLOCK? */
- void (*je_jump) _((CPERLproto));
-};
-typedef struct jmpenv JMPENV;
-
-struct tryvtbl {
- /* [0] executed before JMPENV_POP
- [1] executed after JMPENV_POP
- (NULL pointers are OK) */
- char *try_context;
- void (*try_normal [2]) _((CPERLproto_ void*));
- void (*try_abnormal [2]) _((CPERLproto_ void*));
- void (*try_exception [2]) _((CPERLproto_ void*));
- void (*try_myexit [2]) _((CPERLproto_ void*));
-};
-typedef struct tryvtbl TRYVTBL;
-
-typedef void (*tryblock_f) _((CPERLproto_ TRYVTBL *vtbl, void *locals));
-#define TRYBLOCK(mytry,vars) \
- (*tryblock_function)(PERL_OBJECT_THIS_ &mytry, &vars)
-
-#ifdef OP_IN_REGISTER
-#define OP_REG_TO_MEM opsave = op
-#define OP_MEM_TO_REG op = opsave
-#else
-#define OP_REG_TO_MEM NOOP
-#define OP_MEM_TO_REG NOOP
-#endif
+#define SAVECOMPPAD() save_pushptr(MUTABLE_SV(PL_comppad), SAVEt_COMPPAD)
-#define JMPENV_TOPINIT(top) \
-STMT_START { \
- top.je_prev = NULL; \
- top.je_stat = JMP_ABNORMAL; \
- top.je_mustcatch = TRUE; \
- top_env = ⊤ \
-} STMT_END
-
-#define JMPENV_INIT(env, jmp) \
-STMT_START { \
- ((JMPENV*)&env)->je_prev = top_env; \
- ((JMPENV*)&env)->je_stat = JMP_NORMAL; \
- ((JMPENV*)&env)->je_jump = jmp; \
- OP_REG_TO_MEM; \
-} STMT_END
-
-#define JMPENV_TRY(env) \
-STMT_START { \
- OP_MEM_TO_REG; \
- ((JMPENV*)&env)->je_mustcatch = FALSE; \
- top_env = (JMPENV*)&env; \
-} STMT_END
-
-#define JMPENV_POP_JE(env) \
-STMT_START { \
- assert(top_env == (JMPENV*)&env); \
- top_env = ((JMPENV*)&env)->je_prev; \
-} STMT_END
-
-#define JMPENV_STAT(env) ((JMPENV*)&env)->je_stat
-
-#define JMPENV_JUMP(v) \
- STMT_START { \
- assert((v) != JMP_NORMAL); \
- OP_REG_TO_MEM; \
- if (top_env->je_prev) { \
- top_env->je_stat = (v); \
- (*top_env->je_jump)(PERL_OBJECT_THIS); \
- } \
- if ((v) == JMP_MYEXIT) \
- PerlProc_exit(STATUS_NATIVE_EXPORT); \
- PerlIO_printf(PerlIO_stderr(), no_top_env); \
- PerlProc_exit(1); \
+#define SAVESWITCHSTACK(f,t) \
+ STMT_START { \
+ save_pushptrptr(MUTABLE_SV(f), MUTABLE_SV(t), SAVEt_SAVESWITCHSTACK); \
+ SWITCHSTACK((f),(t)); \
+ PL_curstackinfo->si_stack = (t); \
} STMT_END
-
-#define CATCH_GET (top_env->je_mustcatch)
-#define CATCH_SET(v) (top_env->je_mustcatch = (v))
+#define SAVECOPARYBASE(c) save_pushi32ptr(CopARYBASE_get(c), c, SAVEt_COP_ARYBASE);
+
+/* Need to do the cop warnings like this, rather than a "SAVEFREESHAREDPV",
+ because realloc() means that the value can actually change. Possibly
+ could have done savefreesharedpvREF, but this way actually seems cleaner,
+ as it simplifies the code that does the saves, and reduces the load on the
+ save stack. */
+#define SAVECOMPILEWARNINGS() save_pushptr(PL_compiling.cop_warnings, SAVEt_COMPILE_WARNINGS)
+
+#define SAVESTACK_CXPOS() \
+ STMT_START { \
+ SSCHECK(3); \
+ SSPUSHINT(cxstack[cxstack_ix].blk_oldsp); \
+ SSPUSHINT(cxstack_ix); \
+ SSPUSHINT(SAVEt_STACK_CXPOS); \
+ } STMT_END
+#define SAVEPARSER(p) save_pushptr((p), SAVEt_PARSER)
-/*******************************************************************
- * JMPENV_PUSH is the old depreciated API. See perl.c for examples
- * of the new API.
- */
+#ifdef USE_ITHREADS
+# define SAVECOPSTASH(c) SAVEPPTR(CopSTASHPV(c))
+# define SAVECOPSTASH_FREE(c) SAVESHAREDPV(CopSTASHPV(c))
+# define SAVECOPFILE(c) SAVEPPTR(CopFILE(c))
+# define SAVECOPFILE_FREE(c) SAVESHAREDPV(CopFILE(c))
+#else
+# define SAVECOPSTASH(c) SAVESPTR(CopSTASH(c))
+# define SAVECOPSTASH_FREE(c) SAVECOPSTASH(c) /* XXX not refcounted */
+# define SAVECOPFILE(c) SAVESPTR(CopFILEGV(c))
+# define SAVECOPFILE_FREE(c) SAVEGENERICSV(CopFILEGV(c))
+#endif
-struct setjmpenv {
- /* move to scope.c once JMPENV_PUSH is no longer needed XXX */
- JMPENV je0;
- Sigjmp_buf je_buf;
-};
-typedef struct setjmpenv SETJMPENV;
+#define SAVECOPLINE(c) SAVEI32(CopLINE(c))
-#define dJMPENV SETJMPENV cur_env
+/* SSNEW() temporarily allocates a specified number of bytes of data on the
+ * savestack. It returns an integer index into the savestack, because a
+ * pointer would get broken if the savestack is moved on reallocation.
+ * SSNEWa() works like SSNEW(), but also aligns the data to the specified
+ * number of bytes. MEM_ALIGNBYTES is perhaps the most useful. The
+ * alignment will be preserved therough savestack reallocation *only* if
+ * realloc returns data aligned to a size divisible by "align"!
+ *
+ * SSPTR() converts the index returned by SSNEW/SSNEWa() into a pointer.
+ */
-extern void setjmp_jump();
+#define SSNEW(size) Perl_save_alloc(aTHX_ (size), 0)
+#define SSNEWt(n,t) SSNEW((n)*sizeof(t))
+#define SSNEWa(size,align) Perl_save_alloc(aTHX_ (size), \
+ (align - ((int)((caddr_t)&PL_savestack[PL_savestack_ix]) % align)) % align)
+#define SSNEWat(n,t,align) SSNEWa((n)*sizeof(t), align)
-#define JMPENV_PUSH(v) \
- STMT_START { \
- JMPENV_INIT(cur_env, setjmp_jump); \
- PerlProc_setjmp(cur_env.je_buf, 1); \
- JMPENV_TRY(cur_env); \
- (v) = JMPENV_STAT(cur_env); \
- } STMT_END
+#define SSPTR(off,type) ((type) ((char*)PL_savestack + off))
+#define SSPTRt(off,type) ((type*) ((char*)PL_savestack + off))
-#define JMPENV_POP \
-STMT_START { \
- assert(top_env == (JMPENV*) &cur_env); \
- top_env = cur_env.je0.je_prev; \
-} STMT_END
+#define save_freesv(op) save_pushptr((void *)(op), SAVEt_FREESV)
+#define save_mortalizesv(op) save_pushptr((void *)(op), SAVEt_MORTALIZESV)
+#define save_freeop(op) save_pushptr((void *)(op), SAVEt_FREEOP)
+#define save_freepv(pv) save_pushptr((void *)(pv), SAVEt_FREEPV)
+#define save_op() save_pushptr((void *)(PL_op), SAVEt_OP)
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
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