*
*/
-/* *** these are ordered by number of of auto-popped args */
+/* *** Update arg_counts[] in scope.c if you modify these */
/* zero args */
#define SAVEt_CLEARPADRANGE 1
#define SAVEt_CLEARSV 2
#define SAVEt_REGCONTEXT 3
-/*** SPARE 4 ***/
-
-#define SAVEt_ARG0_MAX 4
/* one arg */
+#define SAVEt_TMPSFLOOR 4
#define SAVEt_BOOL 5
#define SAVEt_COMPILE_WARNINGS 6
#define SAVEt_COMPPAD 7
#define SAVEt_PARSER 19
#define SAVEt_STACK_POS 20
#define SAVEt_READONLY_OFF 21
-
-#define SAVEt_ARG1_MAX 21
+#define SAVEt_FREEPADNAME 22
+#define SAVEt_STRLEN_SMALL 23
/* two args */
-#define SAVEt_APTR 22
-#define SAVEt_AV 23
-#define SAVEt_DESTRUCTOR 24
-#define SAVEt_DESTRUCTOR_X 25
-#define SAVEt_GENERIC_PVREF 26
-#define SAVEt_GENERIC_SVREF 27
-#define SAVEt_GP 28
-#define SAVEt_GVSV 29
-#define SAVEt_HINTS 30
-#define SAVEt_HPTR 31
-#define SAVEt_HV 32
-#define SAVEt_I32 33
-#define SAVEt_INT 34
-#define SAVEt_ITEM 35
-#define SAVEt_IV 36
-#define SAVEt_LONG 37
-#define SAVEt_PPTR 38
-#define SAVEt_SAVESWITCHSTACK 39
-#define SAVEt_SHARED_PVREF 40
-#define SAVEt_SPTR 41
-#define SAVEt_STRLEN 42
-#define SAVEt_SV 43
-#define SAVEt_SVREF 44
-#define SAVEt_VPTR 45
-#define SAVEt_ADELETE 46
-
-#define SAVEt_ARG2_MAX 46
+#define SAVEt_AV 24
+#define SAVEt_DESTRUCTOR 25
+#define SAVEt_DESTRUCTOR_X 26
+#define SAVEt_GENERIC_PVREF 27
+#define SAVEt_GENERIC_SVREF 28
+#define SAVEt_GP 29
+#define SAVEt_GVSV 30
+#define SAVEt_HINTS 31
+#define SAVEt_HPTR 32
+#define SAVEt_HV 33
+#define SAVEt_I32 34
+#define SAVEt_INT 35
+#define SAVEt_ITEM 36
+#define SAVEt_IV 37
+#define SAVEt_LONG 38
+#define SAVEt_PPTR 39
+#define SAVEt_SAVESWITCHSTACK 40
+#define SAVEt_SHARED_PVREF 41
+#define SAVEt_SPTR 42
+#define SAVEt_STRLEN 43
+#define SAVEt_SV 44
+#define SAVEt_SVREF 45
+#define SAVEt_VPTR 46
+#define SAVEt_ADELETE 47
+#define SAVEt_APTR 48
/* three args */
-#define SAVEt_DELETE 47
-#define SAVEt_HELEM 48
-#define SAVEt_PADSV_AND_MORTALIZE 49
-#define SAVEt_SET_SVFLAGS 50
-#define SAVEt_GVSLOT 51
-#define SAVEt_AELEM 52
+#define SAVEt_HELEM 49
+#define SAVEt_PADSV_AND_MORTALIZE 50
+#define SAVEt_SET_SVFLAGS 51
+#define SAVEt_GVSLOT 52
+#define SAVEt_AELEM 53
+#define SAVEt_DELETE 54
+#define SAVEt_HINTS_HH 55
+
#define SAVEf_SETMAGIC 1
#define SAVEf_KEEPOLDELEM 2
* macros */
#define SS_MAXPUSH 4
-#define SSCHECK(need) if (PL_savestack_ix + (I32)(need) + SS_MAXPUSH > PL_savestack_max) savestack_grow()
-#define SSGROW(need) if (PL_savestack_ix + (I32)(need) + SS_MAXPUSH > PL_savestack_max) savestack_grow_cnt(need + SS_MAXPUSH)
+#define SSCHECK(need) if (UNLIKELY(PL_savestack_ix + (I32)(need) > PL_savestack_max)) savestack_grow()
+#define SSGROW(need) if (UNLIKELY(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))
* of the grow() can be done. These changes reduce the code of something
* like save_pushptrptr() to half its former size.
* Of course, doing the size check *after* pushing means we must always
- * ensure there are SS_MAXPUSH free slots on the savestack
+ * ensure there are SS_MAXPUSH free slots on the savestack. This is ensured by
+ * savestack_grow() and savestack_grow_cnt always allocating SS_MAXPUSH slots
+ * more than asked for, or that it sets PL_savestack_max to
*
* These are for internal core use only and are subject to change */
assert((need) <= SS_MAXPUSH); \
ix += (need); \
PL_savestack_ix = ix; \
- assert(ix <= PL_savestack_max); \
- if ((ix + SS_MAXPUSH) > PL_savestack_max) savestack_grow(); \
- assert(PL_savestack_ix + SS_MAXPUSH <= PL_savestack_max);
+ assert(ix <= PL_savestack_max + SS_MAXPUSH); \
+ if (UNLIKELY(ix > PL_savestack_max)) savestack_grow(); \
+ assert(PL_savestack_ix <= PL_savestack_max);
#define SS_ADD_INT(i) ((ssp++)->any_i32 = (I32)(i))
#define SS_ADD_LONG(i) ((ssp++)->any_long = (long)(i))
/*
-=head1 Callback Functions
+=for apidoc_section $callback
-=for apidoc Ams||SAVETMPS
-Opening bracket for temporaries on a callback. See C<FREETMPS> and
+=for apidoc Amn;||SAVETMPS
+Opening bracket for temporaries on a callback. See C<L</FREETMPS>> and
L<perlcall>.
-=for apidoc Ams||FREETMPS
-Closing bracket for temporaries on a callback. See C<SAVETMPS> and
+=for apidoc Amn;||FREETMPS
+Closing bracket for temporaries on a callback. See C<L</SAVETMPS>> and
L<perlcall>.
-=for apidoc Ams||ENTER
-Opening bracket on a callback. See C<L
EAVE> and L<perlcall>.
+=for apidoc Amn;||ENTER
+Opening bracket on a callback. See C<L
</LEAVE>> and L<perlcall>.
-=for apidoc Ams||LEAVE
-Closing bracket on a callback. See C<
ENTER> and L<perlcall>.
+=for apidoc Amn;||LEAVE
+Closing bracket on a callback. See C<
L</ENTER>> and L<perlcall>.
-=over
+=for apidoc Am;||ENTER_with_name|"name"
-=item ENTER_with_name(name)
-
-Same as C<ENTER>, but when debugging is enabled it also associates the
+Same as C<L</ENTER>>, but when debugging is enabled it also associates the
given literal string with the new scope.
-=item LEAVE_with_name(name)
-
-Same as C<LEAVE>, but when debugging is enabled it first checks that the
-scope has the given name. Name must be a literal string.
+=for apidoc Am;||LEAVE_with_name|"name"
-=back
+Same as C<L</LEAVE>>, but when debugging is enabled it first checks that the
+scope has the given name. C<name> must be a literal string.
=cut
*/
-#define SAVETMPS Perl_save_strlen(aTHX_ (STRLEN *)&PL_tmps_floor), \
- PL_tmps_floor = PL_tmps_ix
+#define SAVETMPS Perl_savetmps(aTHX)
+
#define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps()
#ifdef DEBUGGING
#define ENTER \
STMT_START { \
- push_scope(); \
- DEBUG_SCOPE("ENTER") \
+ push_scope(); \
+ DEBUG_SCOPE("ENTER") \
} STMT_END
#define LEAVE \
STMT_START { \
- DEBUG_SCOPE("LEAVE") \
- pop_scope(); \
+ DEBUG_SCOPE("LEAVE") \
+ pop_scope(); \
} STMT_END
#define ENTER_with_name(name) \
STMT_START { \
- push_scope(); \
- if (PL_scopestack_name) \
- PL_scopestack_name[PL_scopestack_ix-1] = name; \
- DEBUG_SCOPE("ENTER \"" name "\"") \
+ push_scope(); \
+ if (PL_scopestack_name) \
+ PL_scopestack_name[PL_scopestack_ix-1] = ASSERT_IS_LITERAL(name);\
+ DEBUG_SCOPE("ENTER \"" name "\"") \
} STMT_END
#define LEAVE_with_name(name) \
STMT_START { \
- DEBUG_SCOPE("LEAVE \"" name "\"") \
- if (PL_scopestack_name) { \
- assert(((char*)PL_scopestack_name[PL_scopestack_ix-1] \
- == (char*)name) \
- || strEQ(PL_scopestack_name[PL_scopestack_ix-1], name)); \
- } \
- pop_scope(); \
+ DEBUG_SCOPE("LEAVE \"" name "\"") \
+ if (PL_scopestack_name) { \
+ CLANG_DIAG_IGNORE_STMT(-Wstring-compare); \
+ assert(((char*)PL_scopestack_name[PL_scopestack_ix-1] \
+ == (char*)ASSERT_IS_LITERAL(name)) \
+ || strEQ(PL_scopestack_name[PL_scopestack_ix-1], name)); \
+ CLANG_DIAG_RESTORE_STMT; \
+ } \
+ pop_scope(); \
} STMT_END
#else
#define ENTER push_scope()
#define LEAVE_with_name(name) LEAVE
#endif
#define LEAVE_SCOPE(old) STMT_START { \
- if (PL_savestack_ix > old) leave_scope(old); \
+ if (PL_savestack_ix > old) leave_scope(old); \
} STMT_END
-#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(&(b))
-#define SAVESPTR(s) save_sptr((SV**)&(s))
-#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 SAVEFREECOPHH(h) save_pushptr((void *)(h), SAVEt_FREECOPHH)
+#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 SAVESTRLEN(l) Perl_save_strlen(aTHX_ (STRLEN*)&(l))
+#define SAVEBOOL(b) save_bool(&(b))
+#define SAVESPTR(s) save_sptr((SV**)&(s))
+#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 SAVEFREEPADNAME(s) save_pushptr((void *)(s), SAVEt_FREEPADNAME)
+#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 SAVEFREECOPHH(h) save_pushptr((void *)(h), SAVEt_FREECOPHH)
+
#define SAVEDELETE(h,k,l) \
- save_delete(MUTABLE_HV(h), (char*)(k), (I32)(l))
+ save_delete(MUTABLE_HV(h), (char*)(k), (I32)(l))
#define SAVEHDELETE(h,s) \
- save_hdelete(MUTABLE_HV(h), (s))
+ save_hdelete(MUTABLE_HV(h), (s))
#define SAVEADELETE(a,k) \
- save_adelete(MUTABLE_AV(a), (SSize_t)(k))
+ save_adelete(MUTABLE_AV(a), (SSize_t)(k))
#define SAVEDESTRUCTOR(f,p) \
- save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), (void*)(p))
+ save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), (void*)(p))
#define SAVEDESTRUCTOR_X(f,p) \
- save_destructor_x((DESTRUCTORFUNC_t)(f), (void*)(p))
+ save_destructor_x((DESTRUCTORFUNC_t)(f), (void*)(p))
#define SAVESTACK_POS() \
STMT_START { \
#define SAVESWITCHSTACK(f,t) \
STMT_START { \
- save_pushptrptr(MUTABLE_SV(f), MUTABLE_SV(t), SAVEt_SAVESWITCHSTACK); \
- SWITCHSTACK((f),(t)); \
- PL_curstackinfo->si_stack = (t); \
+ save_pushptrptr(MUTABLE_SV(f), MUTABLE_SV(t), SAVEt_SAVESWITCHSTACK); \
+ SWITCHSTACK((f),(t)); \
+ PL_curstackinfo->si_stack = (t); \
} STMT_END
/* Need to do the cop warnings like this, rather than a "SAVEFREESHAREDPV",
#define SAVECOPLINE(c) SAVEI32(CopLINE(c))
-/* 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 through 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.
+/*
+=for apidoc_section $stack
+=for apidoc Am|I32|SSNEW |Size_t size
+=for apidoc_item | |SSNEWa |Size_t_size|Size_t align
+=for apidoc_item | |SSNEWat|Size_t_size|type|Size_t align
+=for apidoc_item | |SSNEWt |Size_t size|type
+
+These temporarily allocates data on the savestack, returning an I32 index into
+the savestack, because a pointer would get broken if the savestack is moved on
+reallocation. Use L</C<SSPTR>> to convert the returned index into a pointer.
+
+The forms differ in that plain C<SSNEW> allocates C<size> bytes;
+C<SSNEWt> and C<SSNEWat> allocate C<size> objects, each of which is type
+C<type>;
+and <SSNEWa> and C<SSNEWat> make sure to align the new data to an C<align>
+boundary. The most useful value for the alignment is likely to be
+L</C<MEM_ALIGNBYTES>>. The alignment will be preserved through savestack
+reallocation B<only> if realloc returns data aligned to a size divisible by
+"align"!
+
+=for apidoc Am|type |SSPTR |I32 index|type
+=for apidoc_item|type *|SSPTRt|I32 index|type
+
+These convert the C<index> returned by L/<C<SSNEW>> and kin into actual pointers.
+
+The difference is that C<SSPTR> casts the result to C<type>, and C<SSPTRt>
+casts it to a pointer of that C<type>.
+
+=cut
*/
#define SSNEW(size) Perl_save_alloc(aTHX_ (size), 0)
save_pushptr((void *)(_o), SAVEt_FREEOP); \
} STMT_END
#define save_freepv(pv) save_pushptr((void *)(pv), SAVEt_FREEPV)
+
+/*
+=for apidoc_section $callback
+=for apidoc save_op
+
+Implements C<SAVEOP>.
+
+=cut
+ */
+
#define save_op() save_pushptr((void *)(PL_op), SAVEt_OP)
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
* ex: set ts=8 sts=4 sw=4 et:
*/
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