* GSAR 97-03-27
*/
+MSVC_DIAG_IGNORE(4324)
+
struct jmpenv {
struct jmpenv * je_prev;
Sigjmp_buf je_buf; /* uninit if je_prev is NULL */
int je_ret; /* last exception thrown */
- bool je_mustcatch; /* need to call longjmp()? */
+ bool je_mustcatch; /* longjmp()s must be caught locally */
U16 je_old_delaymagic; /* saved PL_delaymagic */
+ SSize_t je_old_stack_hwm;
};
+MSVC_DIAG_RESTORE
+
typedef struct jmpenv JMPENV;
+#if defined DEBUGGING && !defined DEBUGGING_RE_ONLY
+# define JE_OLD_STACK_HWM_zero PL_start_env.je_old_stack_hwm = 0
+# define JE_OLD_STACK_HWM_save(je) \
+ (je).je_old_stack_hwm = PL_curstackinfo->si_stack_hwm
+# define JE_OLD_STACK_HWM_restore(je) \
+ if (PL_curstackinfo->si_stack_hwm < (je).je_old_stack_hwm) \
+ PL_curstackinfo->si_stack_hwm = (je).je_old_stack_hwm
+#else
+# define JE_OLD_STACK_HWM_zero NOOP
+# define JE_OLD_STACK_HWM_save(je) NOOP
+# define JE_OLD_STACK_HWM_restore(je) NOOP
+#endif
+
/*
* How to build the first jmpenv.
*
#define JMPENV_BOOTSTRAP \
STMT_START { \
- PERL_POISON_EXPR(PoisonNew(&PL_start_env, 1, JMPENV));\
- PL_top_env = &PL_start_env; \
- PL_start_env.je_prev = NULL; \
- PL_start_env.je_ret = -1; \
- PL_start_env.je_mustcatch = TRUE; \
- PL_start_env.je_old_delaymagic = 0; \
+ PERL_POISON_EXPR(PoisonNew(&PL_start_env, 1, JMPENV));\
+ PL_top_env = &PL_start_env; \
+ PL_start_env.je_prev = NULL; \
+ PL_start_env.je_ret = -1; \
+ PL_start_env.je_mustcatch = TRUE; \
+ PL_start_env.je_old_delaymagic = 0; \
+ JE_OLD_STACK_HWM_zero; \
} STMT_END
/*
* PERL_FLEXIBLE_EXCEPTIONS
- *
+ *
* All the flexible exceptions code has been removed.
* See the following threads for details:
*
- * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2004-07/msg00378.html
- *
+ * Message-Id: 20040713143217.GB1424@plum.flirble.org
+ * https://www.nntp.perl.org/group/perl.perl5.porters/2004/07/msg93041.html
+ *
* Joshua's original patches (which weren't applied) and discussion:
- *
+ *
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01396.html
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01489.html
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01491.html
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01608.html
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02144.html
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02998.html
- *
+ *
* Chip's reworked patch and discussion:
- *
+ *
* http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1999-03/msg00520.html
- *
+ *
* The flaw in these patches (which went unnoticed at the time) was
* that they moved some code that could potentially die() out of the
* region protected by the setjmp()s. This caused exceptions within
* END blocks and such to not be handled by the correct setjmp().
- *
+ *
* The original patches that introduces flexible exceptions were:
*
- * http://perl5.git.perl.org/perl.git/commit/312caa8e97f1c7ee342a9895c2f0e749625b4929
- * http://perl5.git.perl.org/perl.git/commit/14dd3ad8c9bf82cf09798a22cc89a9862dfd6d1a
- *
+ * https://github.com/Perl/perl5/commit/312caa8e97f1c7ee342a9895c2f0e749625b4929
+ * https://github.com/Perl/perl5/commit/14dd3ad8c9bf82cf09798a22cc89a9862dfd6d1a
+ *
*/
#define dJMPENV JMPENV cur_env
-#define JMPENV_PUSH(v) \
+#define JMPENV_PUSH(v) \
STMT_START { \
- DEBUG_l({ \
- int i = 0; JMPENV *p = PL_top_env; \
- while (p) { i++; p = p->je_prev; } \
- Perl_deb(aTHX_ "JUMPENV_PUSH level=%d at %s:%d\n", \
- i, __FILE__, __LINE__);}) \
- cur_env.je_prev = PL_top_env; \
- cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \
- PL_top_env = &cur_env; \
- cur_env.je_mustcatch = FALSE; \
- cur_env.je_old_delaymagic = PL_delaymagic; \
- (v) = cur_env.je_ret; \
+ DEBUG_l({ \
+ int i = 0; \
+ JMPENV *p = PL_top_env; \
+ while (p) { i++; p = p->je_prev; } \
+ Perl_deb(aTHX_ "JMPENV_PUSH pre level=%d in %s at %s:%d\n", \
+ i, SAFE_FUNCTION__, __FILE__, __LINE__); \
+ }); \
+ cur_env.je_prev = PL_top_env; \
+ JE_OLD_STACK_HWM_save(cur_env); \
+ /* setjmp() is callable in limited contexts which does not */ \
+ /* include assignment, so switch() instead */ \
+ switch (PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK)) { \
+ case 0: cur_env.je_ret = 0; break; \
+ case 1: cur_env.je_ret = 1; break; \
+ case 2: cur_env.je_ret = 2; break; \
+ case 3: cur_env.je_ret = 3; break; \
+ default: Perl_croak(aTHX_ "panic: unexpected setjmp() result\n"); \
+ } \
+ JE_OLD_STACK_HWM_restore(cur_env); \
+ PL_top_env = &cur_env; \
+ cur_env.je_mustcatch = FALSE; \
+ cur_env.je_old_delaymagic = PL_delaymagic; \
+ DEBUG_l({ \
+ int i = 0; \
+ JMPENV *p = PL_top_env; \
+ while (p) { i++; p = p->je_prev; } \
+ Perl_deb(aTHX_ "JMPENV_PUSH level=%d ret=%d in %s at %s:%d\n", \
+ i, cur_env.je_ret, SAFE_FUNCTION__, __FILE__, __LINE__); \
+ }); \
+ (v) = cur_env.je_ret; \
} STMT_END
#define JMPENV_POP \
STMT_START { \
- DEBUG_l({ \
- int i = -1; JMPENV *p = PL_top_env; \
- while (p) { i++; p = p->je_prev; } \
- Perl_deb(aTHX_ "JUMPENV_POP level=%d at %s:%d\n", \
- i, __FILE__, __LINE__);}) \
- assert(PL_top_env == &cur_env); \
- PL_delaymagic = cur_env.je_old_delaymagic; \
- PL_top_env = cur_env.je_prev; \
+ DEBUG_l({ \
+ int i = -1; JMPENV *p = PL_top_env; \
+ while (p) { i++; p = p->je_prev; } \
+ Perl_deb(aTHX_ "JMPENV_POP level=%d in %s at %s:%d\n", \
+ i, SAFE_FUNCTION__, __FILE__, __LINE__);}) \
+ assert(PL_top_env == &cur_env); \
+ PL_delaymagic = cur_env.je_old_delaymagic; \
+ PL_top_env = cur_env.je_prev; \
} STMT_END
#define JMPENV_JUMP(v) \
STMT_START { \
- DEBUG_l({ \
- int i = -1; JMPENV *p = PL_top_env; \
- while (p) { i++; p = p->je_prev; } \
- Perl_deb(aTHX_ "JUMPENV_JUMP(%d) level=%d at %s:%d\n", \
- (int)v, i, __FILE__, __LINE__);}) \
- if (PL_top_env->je_prev) \
- PerlProc_longjmp(PL_top_env->je_buf, (v)); \
- if ((v) == 2) \
- PerlProc_exit(STATUS_EXIT); \
- PerlIO_printf(PerlIO_stderr(), "panic: top_env, v=%d\n", (int)v); \
- PerlProc_exit(1); \
+ DEBUG_l({ \
+ int i = -1; JMPENV *p = PL_top_env; \
+ while (p) { i++; p = p->je_prev; } \
+ Perl_deb(aTHX_ "JMPENV_JUMP(%d) level=%d in %s at %s:%d\n", \
+ (int)(v), i, SAFE_FUNCTION__, __FILE__, __LINE__);}) \
+ if (PL_top_env->je_prev) { \
+ assert((v) >= 0 && (v) <= 3); \
+ PerlProc_longjmp(PL_top_env->je_buf, (v)); \
+ } \
+ if ((v) == 2) \
+ PerlProc_exit(STATUS_EXIT); \
+ PerlIO_printf(PerlIO_stderr(), "panic: top_env, v=%d\n", (int)(v)); \
+ PerlProc_exit(1); \
} STMT_END
#define CATCH_GET (PL_top_env->je_mustcatch)
#define CATCH_SET(v) \
STMT_START { \
- DEBUG_l( \
- Perl_deb(aTHX_ \
- "JUMPLEVEL set catch %d => %d (for %p) at %s:%d\n", \
- PL_top_env->je_mustcatch, v, (void*)PL_top_env, \
- __FILE__, __LINE__);) \
- PL_top_env->je_mustcatch = (v); \
+ DEBUG_l( \
+ Perl_deb(aTHX_ \
+ "JUMPLEVEL set catch %d => %d (for %p) in %s at %s:%d\n", \
+ PL_top_env->je_mustcatch, (v), (void*)PL_top_env, \
+ SAFE_FUNCTION__, __FILE__, __LINE__);) \
+ PL_top_env->je_mustcatch = (v); \
} STMT_END
/*
-=head1 COP Hint Hashes
+=for apidoc_section $COP
*/
typedef struct refcounted_he COPHH;
#define COPHH_KEY_UTF8 REFCOUNTED_HE_KEY_UTF8
+#define COPHH_EXISTS REFCOUNTED_HE_EXISTS
/*
-=for apidoc Amx|SV *|cophh_fetch_pvn|const COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags
-
-Look up the entry in the cop hints hash C<cophh> with the key specified by
-C<keypv> and C<keylen>. If C<flags> has the C<COPHH_KEY_UTF8> bit set,
-the key octets are interpreted as UTF-8, otherwise they are interpreted
-as Latin-1. C<hash> is a precomputed hash of the key string, or zero if
-it has not been precomputed. Returns a mortal scalar copy of the value
-associated with the key, or C<&PL_sv_placeholder> if there is no value
-associated with the key.
+=for apidoc Amx|SV *|cophh_fetch_pv |const COPHH *cophh|const char *key |U32 hash|U32 flags
+=for apidoc_item|SV *|cophh_fetch_pvn|const COPHH *cophh|const char *key|STRLEN keylen|U32 hash|U32 flags
+=for apidoc_item|SV *|cophh_fetch_pvs|const COPHH *cophh| "key" |U32 flags
+=for apidoc_item|SV *|cophh_fetch_sv |const COPHH *cophh| SV *key |U32 hash|U32 flags
+
+These look up the entry in the cop hints hash C<cophh> with the key specified by
+C<key> (and C<keylen> in the C<pvn> form), returning that value as a mortal
+scalar copy, or C<&PL_sv_placeholder> if there is no value associated with the
+key.
+
+The forms differ in how the key is specified.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
+
+=for apidoc Amnh||COPHH_KEY_UTF8
=cut
-*/
-#define cophh_fetch_pvn(cophh, keypv, keylen, hash, flags) \
- Perl_refcounted_he_fetch_pvn(aTHX_ cophh, keypv, keylen, hash, flags)
+*/
-/*
-=for apidoc Amx|SV *|cophh_fetch_pvs|const COPHH *cophh|const char *key|U32 flags
+#define cophh_fetch_pvn(cophh, key, keylen, hash, flags) \
+ Perl_refcounted_he_fetch_pvn(aTHX_ cophh, key, keylen, hash, \
+ (flags & COPHH_KEY_UTF8))
-Like L</cophh_fetch_pvn>, but takes a literal string instead of a
-string/length pair, and no precomputed hash.
+#define cophh_fetch_pvs(cophh, key, flags) \
+ Perl_refcounted_he_fetch_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, \
+ (flags & COPHH_KEY_UTF8))
-=cut
-*/
+#define cophh_fetch_pv(cophh, key, hash, flags) \
+ Perl_refcounted_he_fetch_pv(aTHX_ cophh, key, hash, \
+ (flags & COPHH_KEY_UTF8))
-#define cophh_fetch_pvs(cophh, key, flags) \
- Perl_refcounted_he_fetch_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, flags)
+#define cophh_fetch_sv(cophh, key, hash, flags) \
+ Perl_refcounted_he_fetch_sv(aTHX_ cophh, key, hash, \
+ (flags & COPHH_KEY_UTF8))
/*
-=for apidoc Amx|SV *|cophh_fetch_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags
-
-Like L</cophh_fetch_pvn>, but takes a nul-terminated string instead of
-a string/length pair.
+=for apidoc Amx|bool|cophh_exists_pvn|const COPHH *cophh|const char *key|STRLEN keylen|U32 hash|U32 flags
+
+These look up the hint entry in the cop C<cop> with the key specified by
+C<key> (and C<keylen> in the C<pvn> form), returning true if a value exists,
+and false otherwise.
+
+The forms differ in how the key is specified.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
=cut
*/
-#define cophh_fetch_pv(cophh, key, hash, flags) \
- Perl_refcounted_he_fetch_pv(aTHX_ cophh, key, hash, flags)
-
-/*
-=for apidoc Amx|SV *|cophh_fetch_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags
+#define cophh_exists_pvn(cophh, key, keylen, hash, flags) \
+ cBOOL(Perl_refcounted_he_fetch_pvn(aTHX_ cophh, key, keylen, hash, flags | COPHH_EXISTS))
-Like L</cophh_fetch_pvn>, but takes a Perl scalar instead of a
-string/length pair.
+#define cophh_exists_pvs(cophh, key, flags) \
+ cBOOL(Perl_refcounted_he_fetch_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, flags | COPHH_EXISTS))
-=cut
-*/
+#define cophh_exists_pv(cophh, key, hash, flags) \
+ cBOOL(Perl_refcounted_he_fetch_pv(aTHX_ cophh, key, hash, flags | COPHH_EXISTS))
-#define cophh_fetch_sv(cophh, key, hash, flags) \
- Perl_refcounted_he_fetch_sv(aTHX_ cophh, key, hash, flags)
+#define cophh_exists_sv(cophh, key, hash, flags) \
+ cBOOL(Perl_refcounted_he_fetch_sv(aTHX_ cophh, key, hash, flags | COPHH_EXISTS))
/*
=for apidoc Amx|HV *|cophh_2hv|const COPHH *cophh|U32 flags
#define cophh_new_empty() ((COPHH *)NULL)
/*
-=for apidoc Amx|COPHH *|cophh_store_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|SV *value|U32 flags
+=for apidoc Amx|COPHH *|cophh_store_pv |COPHH *cophh|const char *key |U32 hash|SV *value|U32 flags
+=for apidoc_item|COPHH *|cophh_store_pvn|COPHH *cophh|const char *key|STRLEN keylen|U32 hash|SV *value|U32 flags
+=for apidoc_item|COPHH *|cophh_store_pvs|COPHH *cophh| "key" |SV *value|U32 flags
+=for apidoc_item|COPHH *|cophh_store_sv |COPHH *cophh| SV *key |U32 hash|SV *value|U32 flags
-Stores a value, associated with a key, in the cop hints hash C<cophh>,
-and returns the modified hash. The returned hash pointer is in general
+These store a value, associated with a key, in the cop hints hash C<cophh>,
+and return the modified hash. The returned hash pointer is in general
not the same as the hash pointer that was passed in. The input hash is
consumed by the function, and the pointer to it must not be subsequently
used. Use L</cophh_copy> if you need both hashes.
-The key is specified by C<keypv> and C<keylen>. If C<flags> has the
-C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8,
-otherwise they are interpreted as Latin-1. C<hash> is a precomputed
-hash of the key string, or zero if it has not been precomputed.
-
C<value> is the scalar value to store for this key. C<value> is copied
-by this function, which thus does not take ownership of any reference
-to it, and later changes to the scalar will not be reflected in the
-value visible in the cop hints hash. Complex types of scalar will not
-be stored with referential integrity, but will be coerced to strings.
+by these functions, which thus do not take ownership of any reference
+to it, and hence later changes to the scalar will not be reflected in the value
+visible in the cop hints hash. Complex types of scalar will not be stored with
+referential integrity, but will be coerced to strings.
+
+The forms differ in how the key is specified. In all forms, the key is pointed
+to by C<key>.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
=cut
*/
-#define cophh_store_pvn(cophh, keypv, keylen, hash, value, flags) \
- Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, value, flags)
-
-/*
-=for apidoc Amx|COPHH *|cophh_store_pvs|const COPHH *cophh|const char *key|SV *value|U32 flags
-
-Like L</cophh_store_pvn>, but takes a literal string instead of a
-string/length pair, and no precomputed hash.
-
-=cut
-*/
+#define cophh_store_pvn(cophh, key, keylen, hash, value, flags) \
+ Perl_refcounted_he_new_pvn(aTHX_ cophh, key, keylen, hash, value, flags)
#define cophh_store_pvs(cophh, key, value, flags) \
Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, value, flags)
-/*
-=for apidoc Amx|COPHH *|cophh_store_pv|const COPHH *cophh|const char *key|U32 hash|SV *value|U32 flags
-
-Like L</cophh_store_pvn>, but takes a nul-terminated string instead of
-a string/length pair.
-
-=cut
-*/
-
#define cophh_store_pv(cophh, key, hash, value, flags) \
Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, value, flags)
-/*
-=for apidoc Amx|COPHH *|cophh_store_sv|const COPHH *cophh|SV *key|U32 hash|SV *value|U32 flags
-
-Like L</cophh_store_pvn>, but takes a Perl scalar instead of a
-string/length pair.
-
-=cut
-*/
-
#define cophh_store_sv(cophh, key, hash, value, flags) \
Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, value, flags)
/*
-=for apidoc Amx|COPHH *|cophh_delete_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags
+=for apidoc Amx|COPHH *|cophh_delete_pv |COPHH *cophh|const char *key |U32 hash|U32 flags
+=for apidoc_item|COPHH *|cophh_delete_pvn|COPHH *cophh|const char *key|STRLEN keylen|U32 hash|U32 flags
+=for apidoc_item|COPHH *|cophh_delete_pvs|COPHH *cophh| "key" |U32 flags
+=for apidoc_item|COPHH *|cophh_delete_sv |COPHH *cophh| SV *key |U32 hash|U32 flags
-Delete a key and its associated value from the cop hints hash C<cophh>,
-and returns the modified hash. The returned hash pointer is in general
+These delete a key and its associated value from the cop hints hash C<cophh>,
+and return the modified hash. The returned hash pointer is in general
not the same as the hash pointer that was passed in. The input hash is
consumed by the function, and the pointer to it must not be subsequently
used. Use L</cophh_copy> if you need both hashes.
-The key is specified by C<keypv> and C<keylen>. If C<flags> has the
-C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8,
-otherwise they are interpreted as Latin-1. C<hash> is a precomputed
-hash of the key string, or zero if it has not been precomputed.
+The forms differ in how the key is specified. In all forms, the key is pointed
+to by C<key>.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
=cut
*/
-#define cophh_delete_pvn(cophh, keypv, keylen, hash, flags) \
- Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, \
- (SV *)NULL, flags)
-
-/*
-=for apidoc Amx|COPHH *|cophh_delete_pvs|const COPHH *cophh|const char *key|U32 flags
-
-Like L</cophh_delete_pvn>, but takes a literal string instead of a
-string/length pair, and no precomputed hash.
-
-=cut
-*/
+#define cophh_delete_pvn(cophh, key, keylen, hash, flags) \
+ Perl_refcounted_he_new_pvn(aTHX_ cophh, key, keylen, hash, \
+ (SV *)NULL, flags)
#define cophh_delete_pvs(cophh, key, flags) \
Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, \
- (SV *)NULL, flags)
-
-/*
-=for apidoc Amx|COPHH *|cophh_delete_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags
-
-Like L</cophh_delete_pvn>, but takes a nul-terminated string instead of
-a string/length pair.
-
-=cut
-*/
+ (SV *)NULL, flags)
#define cophh_delete_pv(cophh, key, hash, flags) \
Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, (SV *)NULL, flags)
-/*
-=for apidoc Amx|COPHH *|cophh_delete_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags
-
-Like L</cophh_delete_pvn>, but takes a Perl scalar instead of a
-string/length pair.
-
-=cut
-*/
-
#define cophh_delete_sv(cophh, key, hash, flags) \
Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, (SV *)NULL, flags)
/* label for this construct is now stored in cop_hints_hash */
#ifdef USE_ITHREADS
PADOFFSET cop_stashoff; /* offset into PL_stashpad, for the
- package the line was compiled in */
- char * cop_file; /* file name the following line # is from */
+ package the line was compiled in */
+ char * cop_file; /* rcpv containing name of file this command is from */
#else
HV * cop_stash; /* package line was compiled in */
- GV * cop_filegv; /* file the following line # is from */
+ GV * cop_filegv; /* name of GV file this command is from */
#endif
U32 cop_hints; /* hints bits from pragmata */
U32 cop_seq; /* parse sequence number */
- /* Beware. mg.c and warnings.pl assume the type of this is STRLEN *: */
- STRLEN * cop_warnings; /* lexical warnings bitmask */
+ char * cop_warnings; /* Lexical warnings bitmask vector.
+ Refcounted shared copy of ${^WARNING_BITS}.
+ This pointer either points at one of the
+ magic values for warnings, or it points
+ at a buffer constructed with rcpv_new().
+ Use the RCPV_LEN() macro to get its length.
+ */
/* compile time state of %^H. See the comment in op.c for how this is
used to recreate a hash to return from caller. */
COPHH * cop_hints_hash;
+ /* for now just a bitmask stored here.
+ If we get sufficient features this may become a pointer.
+ How these flags are stored is subject to change without
+ notice. Use the macros to test for features.
+ */
+ U32 cop_features;
};
+/*
+=for apidoc Am|const char *|CopFILE|const COP * c
+Returns the name of the file associated with the C<COP> C<c>
+
+=for apidoc Am|const char *|CopFILE_LEN|const COP * c
+Returns the length of the file associated with the C<COP> C<c>
+
+=for apidoc Am|line_t|CopLINE|const COP * c
+Returns the line number in the source code associated with the C<COP> C<c>
+
+=for apidoc Am|AV *|CopFILEAV|const COP * c
+Returns the AV associated with the C<COP> C<c>, creating it if necessary.
+
+=for apidoc Am|AV *|CopFILEAVn|const COP * c
+Returns the AV associated with the C<COP> C<c>, returning NULL if it
+doesn't already exist.
+
+=for apidoc Am|SV *|CopFILESV|const COP * c
+Returns the SV associated with the C<COP> C<c>
+
+=for apidoc Am|void|CopFILE_set|COP * c|const char * pv
+Makes C<pv> the name of the file associated with the C<COP> C<c>
+
+=for apidoc Am|void|CopFILE_setn|COP * c|const char * pv|STRLEN len
+Makes C<pv> the name of the file associated with the C<COP> C<c>
+
+=for apidoc Am|void|CopFILE_copy|COP * dst|COP * src
+Efficiently copies the cop file name from one COP to another. Wraps
+the required logic to do a refcounted copy under threads or not.
+
+=for apidoc Am|void|CopFILE_free|COP * c
+Frees the file data in a cop. Under the hood this is a refcounting
+operation.
+
+=for apidoc Am|GV *|CopFILEGV|const COP * c
+Returns the GV associated with the C<COP> C<c>
+
+=for apidoc CopFILEGV_set
+Available only on unthreaded perls. Makes C<pv> the name of the file
+associated with the C<COP> C<c>
+
+=for apidoc Am|HV *|CopSTASH|const COP * c
+Returns the stash associated with C<c>.
+
+=for apidoc Am|bool|CopSTASH_eq|const COP * c|const HV * hv
+Returns a boolean as to whether or not C<hv> is the stash associated with C<c>.
+
+=for apidoc Am|bool|CopSTASH_set|COP * c|HV * hv
+Set the stash associated with C<c> to C<hv>.
+
+=for apidoc Am|char *|CopSTASHPV|const COP * c
+Returns the package name of the stash associated with C<c>, or C<NULL> if no
+associated stash
+
+=for apidoc Am|void|CopSTASHPV_set|COP * c|const char * pv
+Set the package name of the stash associated with C<c>, to the NUL-terminated C
+string C<p>, creating the package if necessary.
+
+=cut
+*/
+
+/*
+=for apidoc Am|RCPV *|RCPVx|char *pv
+Returns the RCPV structure (struct rcpv) for a refcounted
+string pv created with C<rcpv_new()>.
+No checks are performed to ensure that C<pv> was actually allocated
+with C<rcpv_new()>, it is the callers responsibility to ensure that
+this is the case.
+
+=for apidoc Am|RCPV *|RCPV_REFCOUNT|char *pv
+Returns the refcount for a pv created with C<rcpv_new()>.
+No checks are performed to ensure that C<pv> was actually allocated
+with C<rcpv_new()>, it is the callers responsibility to ensure that
+this is the case.
+
+=for apidoc Am|RCPV *|RCPV_REFCNT_inc|char *pv
+Increments the refcount for a C<char *> pointer which was created
+with a call to C<rcpv_new()>. Same as calling rcpv_copy().
+No checks are performed to ensure that C<pv> was actually allocated
+with C<rcpv_new()>, it is the callers responsibility to ensure that
+this is the case.
+
+=for apidoc Am|RCPV *|RCPV_REFCNT_dec|char *pv
+Decrements the refcount for a C<char *> pointer which was created
+with a call to C<rcpv_new()>. Same as calling rcpv_free().
+No checks are performed to ensure that C<pv> was actually allocated
+with C<rcpv_new()>, it is the callers responsibility to ensure that
+this is the case.
+
+=for apidoc Am|RCPV *|RCPV_LEN|char *pv
+Returns the length of a pv created with C<rcpv_new()>.
+Note that this reflects the length of the string from the callers
+point of view, it does not include the mandatory null which is
+always injected at the end of the string by rcpv_new().
+No checks are performed to ensure that C<pv> was actually allocated
+with C<rcpv_new()>, it is the callers responsibility to ensure that
+this is the case.
+
+=cut
+*/
+
+struct rcpv {
+ STRLEN refcount; /* UV would mean a 64 refcnt on
+ 32 bit builds with -Duse64bitint */
+ STRLEN len; /* length of string including mandatory
+ null byte at end */
+ char pv[1];
+};
+typedef struct rcpv RCPV;
+
+#define RCPVf_USE_STRLEN (1 << 0)
+#define RCPVf_NO_COPY (1 << 1)
+#define RCPVf_ALLOW_EMPTY (1 << 2)
+
+#define RCPVx(pv_arg) ((RCPV *)((pv_arg) - STRUCT_OFFSET(struct rcpv, pv)))
+#define RCPV_REFCOUNT(pv) (RCPVx(pv)->refcount)
+#define RCPV_LEN(pv) (RCPVx(pv)->len-1) /* len always includes space for a null */
+#define RCPV_REFCNT_inc(pv) rcpv_copy(pv)
+#define RCPV_REFCNT_dec(pv) rcpv_free(pv)
+
#ifdef USE_ITHREADS
-# define CopFILE(c) ((c)->cop_file)
+
+# define CopFILE(c) ((c)->cop_file)
+# define CopFILE_LEN(c) (CopFILE(c) ? RCPV_LEN(CopFILE(c)) : 0)
# define CopFILEGV(c) (CopFILE(c) \
- ? gv_fetchfile(CopFILE(c)) : NULL)
-
-# ifdef NETWARE
-# define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv))
-# define CopFILE_setn(c,pv,l) ((c)->cop_file = savepvn((pv),(l)))
-# else
-# define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv))
-# define CopFILE_setn(c,pv,l) ((c)->cop_file = savesharedpvn((pv),(l)))
-# endif
+ ? gv_fetchfile(CopFILE(c)) : NULL)
+
+# define CopFILE_set_x(c,pv) ((c)->cop_file = rcpv_new((pv),0,RCPVf_USE_STRLEN))
+# define CopFILE_setn_x(c,pv,l) ((c)->cop_file = rcpv_new((pv),(l),0))
+# define CopFILE_free_x(c) ((c)->cop_file = rcpv_free((c)->cop_file))
+# define CopFILE_copy_x(dst,src) ((dst)->cop_file = rcpv_copy((src)->cop_file))
+
+/* change condition to 1 && to enable this debugging */
+# define CopFILE_debug(c,t,rk) \
+ if (0 && (c)->cop_file) \
+ PerlIO_printf(Perl_debug_log, \
+ "%-14s THX:%p OP:%p PV:%p rc: " \
+ "%6zu fn: '%.*s' at %s line %d\n", \
+ (t), aTHX, (c), (c)->cop_file, \
+ RCPV_REFCOUNT((c)->cop_file)-rk, \
+ (int)RCPV_LEN((c)->cop_file), \
+ (c)->cop_file,__FILE__,__LINE__) \
+
+
+# define CopFILE_set(c,pv) \
+ STMT_START { \
+ CopFILE_set_x(c,pv); \
+ CopFILE_debug(c,"CopFILE_set", 0); \
+ } STMT_END
+
+# define CopFILE_setn(c,pv,l) \
+ STMT_START { \
+ CopFILE_setn_x(c,pv,l); \
+ CopFILE_debug(c,"CopFILE_setn", 0); \
+ } STMT_END
+
+# define CopFILE_copy(dst,src) \
+ STMT_START { \
+ CopFILE_copy_x((dst),(src)); \
+ CopFILE_debug((dst),"CopFILE_copy", 0); \
+ } STMT_END
+
+# define CopFILE_free(c) \
+ STMT_START { \
+ CopFILE_debug((c),"CopFILE_free", 1); \
+ CopFILE_free_x(c); \
+ } STMT_END
+
# define CopFILESV(c) (CopFILE(c) \
- ? GvSV(gv_fetchfile(CopFILE(c))) : NULL)
+ ? GvSV(gv_fetchfile(CopFILE(c))) : NULL)
# define CopFILEAV(c) (CopFILE(c) \
- ? GvAV(gv_fetchfile(CopFILE(c))) : NULL)
+ ? GvAV(gv_fetchfile(CopFILE(c))) : NULL)
# define CopFILEAVx(c) (assert_(CopFILE(c)) \
- GvAV(gv_fetchfile(CopFILE(c))))
-
+ GvAV(gv_fetchfile(CopFILE(c))))
+# define CopFILEAVn(c) (cop_file_avn(c))
# define CopSTASH(c) PL_stashpad[(c)->cop_stashoff]
# define CopSTASH_set(c,hv) ((c)->cop_stashoff = (hv) \
- ? alloccopstash(hv) \
- : 0)
-# ifdef NETWARE
-# define CopFILE_free(c) SAVECOPFILE_FREE(c)
-# else
-# define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = NULL))
-# endif
-#else
+ ? alloccopstash(hv) \
+ : 0)
+
+#else /* Above: yes threads; Below no threads */
+
# define CopFILEGV(c) ((c)->cop_filegv)
# define CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv))
# define CopFILE_set(c,pv) CopFILEGV_set((c), gv_fetchfile(pv))
+# define CopFILE_copy(dst,src) CopFILEGV_set((dst),CopFILEGV(src))
# define CopFILE_setn(c,pv,l) CopFILEGV_set((c), gv_fetchfile_flags((pv),(l),0))
# define CopFILESV(c) (CopFILEGV(c) ? GvSV(CopFILEGV(c)) : NULL)
# define CopFILEAV(c) (CopFILEGV(c) ? GvAV(CopFILEGV(c)) : NULL)
# else
# define CopFILEAVx(c) (GvAV(CopFILEGV(c)))
# endif
-# define CopFILE(c) (CopFILEGV(c) \
- ? GvNAME(CopFILEGV(c))+2 : NULL)
+# define CopFILEAVn(c) (CopFILEGV(c) ? GvAVn(CopFILEGV(c)) : NULL)
+# define CopFILE(c) (CopFILEGV(c) /* +2 for '_<' */ \
+ ? GvNAME(CopFILEGV(c))+2 : NULL)
+# define CopFILE_LEN(c) (CopFILEGV(c) /* -2 for '_<' */ \
+ ? GvNAMELEN(CopFILEGV(c))-2 : 0)
# define CopSTASH(c) ((c)->cop_stash)
# define CopSTASH_set(c,hv) ((c)->cop_stash = (hv))
# define CopFILE_free(c) (SvREFCNT_dec(CopFILEGV(c)),(CopFILEGV(c) = NULL))
#define CopHINTHASH_get(c) ((COPHH*)((c)->cop_hints_hash))
#define CopHINTHASH_set(c,h) ((c)->cop_hints_hash = (h))
-/*
-=head1 COP Hint Reading
-*/
+#define CopFEATURES_setfrom(dst, src) ((dst)->cop_features = (src)->cop_features)
/*
-=for apidoc Am|SV *|cop_hints_fetch_pvn|const COP *cop|const char *keypv|STRLEN keylen|U32 hash|U32 flags
-
-Look up the hint entry in the cop C<cop> with the key specified by
-C<keypv> and C<keylen>. If C<flags> has the C<COPHH_KEY_UTF8> bit set,
-the key octets are interpreted as UTF-8, otherwise they are interpreted
-as Latin-1. C<hash> is a precomputed hash of the key string, or zero if
-it has not been precomputed. Returns a mortal scalar copy of the value
-associated with the key, or C<&PL_sv_placeholder> if there is no value
-associated with the key.
+=for apidoc Am|SV *|cop_hints_fetch_pv |const COP *cop|const char *key |U32 hash|U32 flags
+=for apidoc_item|SV *|cop_hints_fetch_pvn|const COP *cop|const char *key|STRLEN keylen|U32 hash|U32 flags
+=for apidoc_item|SV *|cop_hints_fetch_pvs|const COP *cop| "key" |U32 flags
+=for apidoc_item|SV *|cop_hints_fetch_sv |const COP *cop| SV *key |U32 hash|U32 flags
+
+These look up the hint entry in the cop C<cop> with the key specified by
+C<key> (and C<keylen> in the C<pvn> form), returning that value as a mortal
+scalar copy, or C<&PL_sv_placeholder> if there is no value associated with the
+key.
+
+The forms differ in how the key is specified.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
=cut
*/
-#define cop_hints_fetch_pvn(cop, keypv, keylen, hash, flags) \
- cophh_fetch_pvn(CopHINTHASH_get(cop), keypv, keylen, hash, flags)
-
-/*
-=for apidoc Am|SV *|cop_hints_fetch_pvs|const COP *cop|const char *key|U32 flags
-
-Like L</cop_hints_fetch_pvn>, but takes a literal string instead of a
-string/length pair, and no precomputed hash.
-
-=cut
-*/
+#define cop_hints_fetch_pvn(cop, key, keylen, hash, flags) \
+ cophh_fetch_pvn(CopHINTHASH_get(cop), key, keylen, hash, flags)
#define cop_hints_fetch_pvs(cop, key, flags) \
cophh_fetch_pvs(CopHINTHASH_get(cop), key, flags)
-/*
-=for apidoc Am|SV *|cop_hints_fetch_pv|const COP *cop|const char *key|U32 hash|U32 flags
-
-Like L</cop_hints_fetch_pvn>, but takes a nul-terminated string instead
-of a string/length pair.
-
-=cut
-*/
-
#define cop_hints_fetch_pv(cop, key, hash, flags) \
cophh_fetch_pv(CopHINTHASH_get(cop), key, hash, flags)
-/*
-=for apidoc Am|SV *|cop_hints_fetch_sv|const COP *cop|SV *key|U32 hash|U32 flags
+#define cop_hints_fetch_sv(cop, key, hash, flags) \
+ cophh_fetch_sv(CopHINTHASH_get(cop), key, hash, flags)
-Like L</cop_hints_fetch_pvn>, but takes a Perl scalar instead of a
-string/length pair.
+/*
+=for apidoc Am|bool|cop_hints_exists_pv |const COP *cop|const char *key|U32 hash |U32 flags
+=for apidoc_item|bool|cop_hints_exists_pvn|const COP *cop|const char *key|STRLEN keylen|U32 hash|U32 flags
+=for apidoc_item|bool|cop_hints_exists_pvs|const COP *cop| "key" |U32 flags
+=for apidoc_item|bool|cop_hints_exists_sv |const COP *cop| SV *key |U32 hash|U32 flags
+
+These look up the hint entry in the cop C<cop> with the key specified by
+C<key> (and C<keylen> in the C<pvn> form), returning true if a value exists,
+and false otherwise.
+
+The forms differ in how the key is specified. In all forms, the key is pointed
+to by C<key>.
+In the plain C<pv> form, the key is a C language NUL-terminated string.
+In the C<pvs> form, the key is a C language string literal.
+In the C<pvn> form, an additional parameter, C<keylen>, specifies the length of
+the string, which hence, may contain embedded-NUL characters.
+In the C<sv> form, C<*key> is an SV, and the key is the PV extracted from that.
+using C<L</SvPV_const>>.
+
+C<hash> is a precomputed hash of the key string, or zero if it has not been
+precomputed. This parameter is omitted from the C<pvs> form, as it is computed
+automatically at compile time.
+
+The only flag currently used from the C<flags> parameter is C<COPHH_KEY_UTF8>.
+It is illegal to set this in the C<sv> form. In the C<pv*> forms, it specifies
+whether the key octets are interpreted as UTF-8 (if set) or as Latin-1 (if
+cleared). The C<sv> form uses the underlying SV to determine the UTF-8ness of
+the octets.
=cut
*/
-#define cop_hints_fetch_sv(cop, key, hash, flags) \
- cophh_fetch_sv(CopHINTHASH_get(cop), key, hash, flags)
+#define cop_hints_exists_pvn(cop, key, keylen, hash, flags) \
+ cophh_exists_pvn(CopHINTHASH_get(cop), key, keylen, hash, flags)
+
+#define cop_hints_exists_pvs(cop, key, flags) \
+ cophh_exists_pvs(CopHINTHASH_get(cop), key, flags)
+
+#define cop_hints_exists_pv(cop, key, hash, flags) \
+ cophh_exists_pv(CopHINTHASH_get(cop), key, hash, flags)
+
+#define cop_hints_exists_sv(cop, key, hash, flags) \
+ cophh_exists_sv(CopHINTHASH_get(cop), key, hash, flags)
/*
=for apidoc Am|HV *|cop_hints_2hv|const COP *cop|U32 flags
#define cop_hints_2hv(cop, flags) \
cophh_2hv(CopHINTHASH_get(cop), flags)
+/*
+=for apidoc Am|const char *|CopLABEL |COP *const cop
+=for apidoc_item|const char *|CopLABEL_len |COP *const cop|STRLEN *len
+=for apidoc_item|const char *|CopLABEL_len_flags|COP *const cop|STRLEN *len|U32 *flags
+
+These return the label attached to a cop.
+
+C<CopLABEL_len> and C<CopLABEL_len_flags> additionally store the number of
+bytes comprising the returned label into C<*len>.
+
+C<CopLABEL_len_flags> additionally returns the UTF-8ness of the returned label,
+by setting C<*flags> to 0 or C<SVf_UTF8>.
+
+=cut
+*/
+
#define CopLABEL(c) Perl_cop_fetch_label(aTHX_ (c), NULL, NULL)
#define CopLABEL_len(c,len) Perl_cop_fetch_label(aTHX_ (c), len, NULL)
#define CopLABEL_len_flags(c,len,flags) Perl_cop_fetch_label(aTHX_ (c), len, flags)
#define CopHINTS_get(c) ((c)->cop_hints + 0)
#define CopHINTS_set(c, h) STMT_START { \
- (c)->cop_hints = (h); \
- } STMT_END
+ (c)->cop_hints = (h); \
+ } STMT_END
/*
* Here we have some enormously heavy (or at least ponderous) wizardry.
/* subroutine context */
struct block_sub {
OP * retop; /* op to execute on exit from sub */
+ I32 old_cxsubix; /* previous value of si_cxsubix */
/* Above here is the same for sub, format and eval. */
PAD *prevcomppad; /* the caller's PL_comppad */
CV * cv;
/* format context */
struct block_format {
OP * retop; /* op to execute on exit from sub */
+ I32 old_cxsubix; /* previous value of si_cxsubix */
/* Above here is the same for sub, format and eval. */
PAD *prevcomppad; /* the caller's PL_comppad */
CV * cv;
# define CX_POP(cx) cxstack_ix--;
#endif
-
-/* base for the next two macros. Don't use directly.
- * The context frame holds a reference to the CV so that it can't be
- * freed while we're executing it */
-
-
#define CX_PUSHSUB_GET_LVALUE_MASK(func) \
- /* If the context is indeterminate, then only the lvalue */ \
- /* flags that the caller also has are applicable. */ \
- ( \
- (PL_op->op_flags & OPf_WANT) \
- ? OPpENTERSUB_LVAL_MASK \
- : !(PL_op->op_private & OPpENTERSUB_LVAL_MASK) \
- ? 0 : (U8)func(aTHX) \
- )
+ /* If the context is indeterminate, then only the lvalue */ \
+ /* flags that the caller also has are applicable. */ \
+ ( \
+ (PL_op->op_flags & OPf_WANT) \
+ ? OPpENTERSUB_LVAL_MASK \
+ : !(PL_op->op_private & OPpENTERSUB_LVAL_MASK) \
+ ? 0 : (U8)func(aTHX) \
+ )
/* Restore old @_ */
#define CX_POP_SAVEARRAY(cx) \
STMT_START { \
- AV *av = GvAV(PL_defgv); \
- GvAV(PL_defgv) = cx->blk_sub.savearray; \
+ AV *cx_pop_savearray_av = GvAV(PL_defgv); \
+ GvAV(PL_defgv) = cx->blk_sub.savearray; \
cx->blk_sub.savearray = NULL; \
- SvREFCNT_dec(av); \
+ SvREFCNT_dec(cx_pop_savearray_av); \
} STMT_END
/* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't
- * leave any (a fast av_clear(ary), basically) */
+ * leave any (a fast av_clear(ary), basically).
+ * New code should probably be using Perl_clear_defarray_simple()
+ * and/or Perl_clear_defarray()
+ */
#define CLEAR_ARGARRAY(ary) \
STMT_START { \
- AvMAX(ary) += AvARRAY(ary) - AvALLOC(ary); \
- AvARRAY(ary) = AvALLOC(ary); \
- AvFILLp(ary) = -1; \
+ AvFILLp(ary) = -1; \
+ av_remove_offset(ary); \
} STMT_END
/* eval context */
struct block_eval {
OP * retop; /* op to execute on exit from eval */
+ I32 old_cxsubix; /* previous value of si_cxsubix */
/* Above here is the same for sub, format and eval. */
SV * old_namesv;
OP * old_eval_root;
blku_gimme is actually also only 2 bits, so could be merged with something.
*/
-#define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x7F)
-#define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7)
+/* blk_u16 bit usage for eval contexts: */
+
+#define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x3F) /* saved PL_in_eval */
+#define CxEVAL_TXT_REFCNTED(cx) (((cx)->blk_u16) & 0x40) /* cur_text rc++ */
+#define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7) /* type of eval op */
/* loop context */
struct block_loop {
LOOP * my_op; /* My op, that contains redo, next and last ops. */
union { /* different ways of locating the iteration variable */
- SV **svp; /* for lexicals: address of pad slot */
- GV *gv; /* for package vars */
+ SV **svp; /* for lexicals: address of pad slot */
+ GV *gv; /* for package vars */
} itervar_u;
SV *itersave; /* the original iteration var */
union {
- struct { /* CXt_LOOP_ARY, C<for (@ary)> */
- AV *ary; /* array being iterated over */
- IV ix; /* index relative to base of array */
- } ary;
- struct { /* CXt_LOOP_LIST, C<for (list)> */
- I32 basesp; /* first element of list on stack */
- IV ix; /* index relative to basesp */
- } stack;
- struct { /* CXt_LOOP_LAZYIV, C<for (1..9)> */
- IV cur;
- IV end;
- } lazyiv;
- struct { /* CXt_LOOP_LAZYSV C<for ('a'..'z')> */
- SV * cur;
- SV * end; /* maxiumum value (or minimum in reverse) */
- } lazysv;
+ struct { /* CXt_LOOP_ARY, C<for (@ary)> */
+ AV *ary; /* array being iterated over */
+ IV ix; /* index relative to base of array */
+ } ary;
+ struct { /* CXt_LOOP_LIST, C<for (list)> */
+ SSize_t basesp; /* first element of list on stack */
+ IV ix; /* index relative to basesp */
+ } stack;
+ struct { /* CXt_LOOP_LAZYIV, C<for (1..9)> */
+ IV cur;
+ IV end;
+ } lazyiv;
+ struct { /* CXt_LOOP_LAZYSV C<for ('a'..'z')> */
+ SV * cur;
+ SV * end; /* maximum value (or minimum in reverse) */
+ } lazysv;
} state_u;
#ifdef USE_ITHREADS
PAD *oldcomppad; /* needed to map itervar_u.svp during thread clone */
? &GvSV((c)->blk_loop.itervar_u.gv) \
: (SV **)&(c)->blk_loop.itervar_u.gv)
-#define CxLABEL(c) (0 + CopLABEL((c)->blk_oldcop))
-#define CxLABEL_len(c,len) (0 + CopLABEL_len((c)->blk_oldcop, len))
-#define CxLABEL_len_flags(c,len,flags) (0 + CopLABEL_len_flags((c)->blk_oldcop, len, flags))
+#define CxLABEL(c) (CopLABEL((c)->blk_oldcop))
+#define CxLABEL_len(c,len) (CopLABEL_len((c)->blk_oldcop, len))
+#define CxLABEL_len_flags(c,len,flags) ((const char *)CopLABEL_len_flags((c)->blk_oldcop, len, flags))
#define CxHASARGS(c) (((c)->cx_type & CXp_HASARGS) == CXp_HASARGS)
/* CxLVAL(): the lval flags of the call site: the relevant flag bits from
* Note the contrast with CvLVALUE(), which is a property of the sub
* rather than the call site.
*/
-#define CxLVAL(c) (0 + ((c)->blk_u16 & 0xff))
+#define CxLVAL(c) (0 + ((U8)((c)->blk_u16)))
/* given/when context */
struct block_givwhen {
- OP *leave_op;
+ OP *leave_op;
SV *defsv_save; /* the original $_ */
};
U16 blku_u16; /* used by block_sub and block_eval (so far) */
I32 blku_oldsaveix; /* saved PL_savestack_ix */
/* all the fields above must be aligned with same-sized fields as sbu */
- I32 blku_oldsp; /* current sp floor: where nextstate pops to */
- I32 blku_oldmarksp; /* mark stack index */
+ SSize_t blku_oldsp; /* current sp floor: where nextstate pops to */
COP * blku_oldcop; /* old curcop pointer */
PMOP * blku_oldpm; /* values of pattern match vars */
SSize_t blku_old_tmpsfloor; /* saved PL_tmps_floor */
I32 blku_oldscopesp; /* scope stack index */
+ I32 blku_oldmarksp; /* mark stack index */
union {
- struct block_sub blku_sub;
- struct block_format blku_format;
- struct block_eval blku_eval;
- struct block_loop blku_loop;
- struct block_givwhen blku_givwhen;
+ struct block_sub blku_sub;
+ struct block_format blku_format;
+ struct block_eval blku_eval;
+ struct block_loop blku_loop;
+ struct block_givwhen blku_givwhen;
} blk_u;
};
#define blk_oldsp cx_u.cx_blk.blku_oldsp
#define CX_DEBUG(cx, action) \
DEBUG_l( \
- Perl_deb(aTHX_ "CX %ld %s %s (scope %ld,%ld) (save %ld,%ld) at %s:%d\n",\
- (long)cxstack_ix, \
- action, \
- PL_block_type[CxTYPE(cx)], \
- (long)PL_scopestack_ix, \
- (long)(cx->blk_oldscopesp), \
- (long)PL_savestack_ix, \
- (long)(cx->blk_oldsaveix), \
- __FILE__, __LINE__));
+ Perl_deb(aTHX_ "CX %ld %s %s (scope %ld,%ld) (save %ld,%ld) in %s at %s:%d\n",\
+ (long)cxstack_ix, \
+ action, \
+ PL_block_type[CxTYPE(cx)], \
+ (long)PL_scopestack_ix, \
+ (long)(cx->blk_oldscopesp), \
+ (long)PL_savestack_ix, \
+ (long)(cx->blk_oldsaveix), \
+ SAFE_FUNCTION__, __FILE__, __LINE__));
void * sbu_rxres;
REGEXP * sbu_rx;
};
+
+#ifdef PERL_CORE
+
#define sb_iters cx_u.cx_subst.sbu_iters
#define sb_maxiters cx_u.cx_subst.sbu_maxiters
#define sb_rflags cx_u.cx_subst.sbu_rflags
#define sb_rxres cx_u.cx_subst.sbu_rxres
#define sb_rx cx_u.cx_subst.sbu_rx
-#ifdef PERL_CORE
# define CX_PUSHSUBST(cx) CXINC, cx = CX_CUR(), \
- cx->blk_oldsaveix = oldsave, \
- cx->sb_iters = iters, \
- cx->sb_maxiters = maxiters, \
- cx->sb_rflags = r_flags, \
- cx->sb_rxtainted = rxtainted, \
- cx->sb_orig = orig, \
- cx->sb_dstr = dstr, \
- cx->sb_targ = targ, \
- cx->sb_s = s, \
- cx->sb_m = m, \
- cx->sb_strend = strend, \
- cx->sb_rxres = NULL, \
- cx->sb_rx = rx, \
- cx->cx_type = CXt_SUBST | (once ? CXp_ONCE : 0); \
- rxres_save(&cx->sb_rxres, rx); \
- (void)ReREFCNT_inc(rx); \
+ cx->blk_oldsaveix = oldsave, \
+ cx->sb_iters = iters, \
+ cx->sb_maxiters = maxiters, \
+ cx->sb_rflags = r_flags, \
+ cx->sb_rxtainted = rxtainted, \
+ cx->sb_orig = orig, \
+ cx->sb_dstr = dstr, \
+ cx->sb_targ = targ, \
+ cx->sb_s = s, \
+ cx->sb_m = m, \
+ cx->sb_strend = strend, \
+ cx->sb_rxres = NULL, \
+ cx->sb_rx = rx, \
+ cx->cx_type = CXt_SUBST | (once ? CXp_ONCE : 0); \
+ rxres_save(&cx->sb_rxres, rx); \
+ (void)ReREFCNT_inc(rx); \
SvREFCNT_inc_void_NN(targ)
# define CX_POPSUBST(cx) \
STMT_START { \
REGEXP *re; \
assert(CxTYPE(cx) == CXt_SUBST); \
- rxres_free(&cx->sb_rxres); \
- re = cx->sb_rx; \
- cx->sb_rx = NULL; \
- ReREFCNT_dec(re); \
+ rxres_free(&cx->sb_rxres); \
+ re = cx->sb_rx; \
+ cx->sb_rx = NULL; \
+ ReREFCNT_dec(re); \
SvREFCNT_dec_NN(cx->sb_targ); \
} STMT_END
#endif
struct context {
union {
- struct block cx_blk;
- struct subst cx_subst;
+ struct block cx_blk;
+ struct subst cx_subst;
} cx_u;
};
#define cx_type cx_u.cx_subst.sbu_type
/* be careful of the ordering of these five. Macros like CxTYPE_is_LOOP,
* CxFOREACH compare ranges */
-#define CXt_LOOP_ARY 4 /* for (@ary) {} */
-#define CXt_LOOP_LAZYSV 5 /* for ('a'..'z') {} */
-#define CXt_LOOP_LAZYIV 6 /* for (1..9) {} */
-#define CXt_LOOP_LIST 7 /* for (1,2,3) {} */
-#define CXt_LOOP_PLAIN 8 /* {} */
-
+#define CXt_LOOP_ARY 4 /* for (@ary) { ...; } */
+#define CXt_LOOP_LAZYSV 5 /* for ('a'..'z') { ...; } */
+#define CXt_LOOP_LAZYIV 6 /* for (1..9) { ...; } */
+#define CXt_LOOP_LIST 7 /* for (1,2,3) { ...; } */
+#define CXt_LOOP_PLAIN 8 /* while (...) { ...; }
+ or plain block { ...; } */
#define CXt_SUB 9
#define CXt_FORMAT 10
-#define CXt_EVAL 11
+#define CXt_EVAL 11 /* eval'', eval{}, try{} */
#define CXt_SUBST 12
+#define CXt_DEFER 13
/* SUBST doesn't feature in all switch statements. */
/* private flags for CXt_SUB and CXt_FORMAT */
/* private flags for CXt_EVAL */
#define CXp_REAL 0x20 /* truly eval'', not a lookalike */
-#define CXp_TRYBLOCK 0x40 /* eval{}, not eval'' or similar */
+#define CXp_EVALBLOCK 0x40 /* eval{}, not eval'' or similar */
+#define CXp_TRY 0x80 /* try {} block */
/* private flags for CXt_LOOP */
&& CxTYPE(cx) <= CXt_LOOP_PLAIN)
#define CxMULTICALL(c) ((c)->cx_type & CXp_MULTICALL)
#define CxREALEVAL(c) (((c)->cx_type & (CXTYPEMASK|CXp_REAL)) \
- == (CXt_EVAL|CXp_REAL))
-#define CxTRYBLOCK(c) (((c)->cx_type & (CXTYPEMASK|CXp_TRYBLOCK)) \
- == (CXt_EVAL|CXp_TRYBLOCK))
+ == (CXt_EVAL|CXp_REAL))
+#define CxEVALBLOCK(c) (((c)->cx_type & (CXTYPEMASK|CXp_EVALBLOCK)) \
+ == (CXt_EVAL|CXp_EVALBLOCK))
+#define CxTRY(c) (((c)->cx_type & (CXTYPEMASK|CXp_TRY)) \
+ == (CXt_EVAL|CXp_TRY))
#define CxFOREACH(c) ( CxTYPE(cx) >= CXt_LOOP_ARY \
&& CxTYPE(cx) <= CXt_LOOP_LIST)
-#define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc()))
+/* private flags for CXt_DEFER */
+#define CXp_FINALLY 0x20 /* `finally` block; semantically identical
+ * but matters for diagnostic messages */
-/*
-=head1 "Gimme" Values
-*/
+/* deprecated old name before real try/catch was added */
+#define CXp_TRYBLOCK CXp_EVALBLOCK
+#define CxTRYBLOCK(c) CxEVALBLOCK(c)
-/*
-=for apidoc AmU||G_SCALAR
-Used to indicate scalar context. See C<L</GIMME_V>>, C<L</GIMME>>, and
-L<perlcall>.
-
-=for apidoc AmU||G_ARRAY
-Used to indicate list context. See C<L</GIMME_V>>, C<L</GIMME>> and
-L<perlcall>.
-
-=for apidoc AmU||G_VOID
-Used to indicate void context. See C<L</GIMME_V>> and L<perlcall>.
-
-=for apidoc AmU||G_DISCARD
-Indicates that arguments returned from a callback should be discarded. See
-L<perlcall>.
-
-=for apidoc AmU||G_EVAL
-
-Used to force a Perl C<eval> wrapper around a callback. See
-L<perlcall>.
-
-=for apidoc AmU||G_NOARGS
+#define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc()))
-Indicates that no arguments are being sent to a callback. See
-L<perlcall>.
+#define G_SCALAR 2
+#define G_LIST 3
+#define G_VOID 1
+#define G_WANT 3
-=cut
-*/
-
-#define G_SCALAR 2
-#define G_ARRAY 3
-#define G_VOID 1
-#define G_WANT 3
+#ifndef PERL_CORE
+ /* name prior to 5.31.1 */
+# define G_ARRAY G_LIST
+#endif
/* extra flags for Perl_call_* routines */
-#define G_DISCARD 4 /* Call FREETMPS.
- Don't change this without consulting the
- hash actions codes defined in hv.h */
-#define G_EVAL 8 /* Assume eval {} around subroutine call. */
-#define G_NOARGS 16 /* Don't construct a @_ array. */
-#define G_KEEPERR 32 /* Warn for errors, don't overwrite $@ */
-#define G_NODEBUG 64 /* Disable debugging at toplevel. */
-#define G_METHOD 128 /* Calling method. */
-#define G_FAKINGEVAL 256 /* Faking an eval context for call_sv or
- fold_constants. */
-#define G_UNDEF_FILL 512 /* Fill the stack with &PL_sv_undef
- A special case for UNSHIFT in
- Perl_magic_methcall(). */
-#define G_WRITING_TO_STDERR 1024 /* Perl_write_to_stderr() is calling
- Perl_magic_methcall(). */
-#define G_RE_REPARSING 0x800 /* compiling a run-time /(?{..})/ */
-#define G_METHOD_NAMED 4096 /* calling named method, eg without :: or ' */
+#define G_DISCARD 0x4 /* Call FREETMPS.
+ Don't change this without consulting the
+ hash actions codes defined in hv.h */
+#define G_EVAL 0x8 /* Assume eval {} around subroutine call. */
+#define G_NOARGS 0x10 /* Don't construct a @_ array. */
+#define G_KEEPERR 0x20 /* Warn for errors, don't overwrite $@ */
+#define G_NODEBUG 0x40 /* Disable debugging at toplevel. */
+#define G_METHOD 0x80 /* Calling method. */
+#define G_FAKINGEVAL 0x100 /* Faking an eval context for call_sv or
+ fold_constants. */
+#define G_UNDEF_FILL 0x200 /* Fill the stack with &PL_sv_undef
+ A special case for UNSHIFT in
+ Perl_magic_methcall(). */
+#define G_WRITING_TO_STDERR 0x400 /* Perl_write_to_stderr() is calling
+ Perl_magic_methcall(). */
+#define G_RE_REPARSING 0x800 /* compiling a run-time /(?{..})/ */
+#define G_METHOD_NAMED 0x1000 /* calling named method, eg without :: or ' */
+#define G_RETHROW 0x2000 /* eval_sv(): re-throw any error */
+#define G_USEHINTS 0x4000 /* eval_sv(): use current hints/features */
/* flag bits for PL_in_eval */
#define EVAL_NULL 0 /* not in an eval */
#define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */
#define EVAL_INREQUIRE 8 /* The code is being required. */
#define EVAL_RE_REPARSING 0x10 /* eval_sv() called with G_RE_REPARSING */
+/* if adding extra bits, make sure they can fit in CxOLD_OP_TYPE() */
/* Support for switching (stack and block) contexts.
* This ensures magic doesn't invalidate local stack and cx pointers.
+ * Which one to use (or add) is mostly, but not completely arbitrary: See
+ * http://nntp.perl.org/group/perl.perl5.porters/257169
*/
#define PERLSI_UNKNOWN -1
#define PERLSI_DIEHOOK 8
#define PERLSI_REQUIRE 9
#define PERLSI_MULTICALL 10
+#define PERLSI_REGCOMP 11
struct stackinfo {
AV * si_stack; /* stack for current runlevel */
struct stackinfo * si_next;
I32 si_cxix; /* current context index */
I32 si_cxmax; /* maximum allocated index */
+ I32 si_cxsubix; /* topmost sub/eval/format */
I32 si_type; /* type of runlevel */
I32 si_markoff; /* offset where markstack begins for us.
- * currently used only with DEBUGGING,
- * but not #ifdef-ed for bincompat */
+ * currently used only with DEBUGGING,
+ * but not #ifdef-ed for bincompat */
+
+#ifdef PERL_RC_STACK
+ /* index of first entry in the argument
+ stack which is not ref-counted. If
+ set to 0 (default), all stack
+ elements are ref-counted */
+ I32 si_stack_nonrc_base;
+#endif
+
+#if defined DEBUGGING && !defined DEBUGGING_RE_ONLY
+/* high water mark: for checking if the stack was correctly extended /
+ * tested for extension by each pp function */
+ SSize_t si_stack_hwm;
+#endif
+
};
+/*
+=for apidoc Ay||PERL_SI
+Use this typedef to declare variables that are to hold C<struct stackinfo>.
+
+=cut
+*/
typedef struct stackinfo PERL_SI;
#define cxstack (PL_curstackinfo->si_cxstack)
#define cxstack_max (PL_curstackinfo->si_cxmax)
#ifdef DEBUGGING
-# define SET_MARK_OFFSET \
+# define SET_MARK_OFFSET \
PL_curstackinfo->si_markoff = PL_markstack_ptr - PL_markstack
#else
-# define SET_MARK_OFFSET NOOP
+# define SET_MARK_OFFSET NOOP
+#endif
+
+#if defined DEBUGGING && !defined DEBUGGING_RE_ONLY
+# define PUSHSTACK_INIT_HWM(si) ((si)->si_stack_hwm = 0)
+#else
+# define PUSHSTACK_INIT_HWM(si) NOOP
#endif
+/* for backcompat; use push_stackinfo() instead */
+
#define PUSHSTACKi(type) \
- STMT_START { \
- PERL_SI *next = PL_curstackinfo->si_next; \
- DEBUG_l({ \
- int i = 0; PERL_SI *p = PL_curstackinfo; \
- while (p) { i++; p = p->si_prev; } \
- Perl_deb(aTHX_ "push STACKINFO %d at %s:%d\n", \
- i, __FILE__, __LINE__);}) \
- if (!next) { \
- next = new_stackinfo(32, 2048/sizeof(PERL_CONTEXT) - 1); \
- next->si_prev = PL_curstackinfo; \
- PL_curstackinfo->si_next = next; \
- } \
- next->si_type = type; \
- next->si_cxix = -1; \
- AvFILLp(next->si_stack) = 0; \
- SWITCHSTACK(PL_curstack,next->si_stack); \
- PL_curstackinfo = next; \
- SET_MARK_OFFSET; \
+ STMT_START { \
+ PL_stack_sp = sp; \
+ push_stackinfo(type, 0);\
+ sp = PL_stack_sp ; \
} STMT_END
#define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN)
-/* POPSTACK works with PL_stack_sp, so it may need to be bracketed by
+
+/* for backcompat; use pop_stackinfo() instead.
+ *
+ * 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 { \
- dSP; \
- PERL_SI * const prev = PL_curstackinfo->si_prev; \
- DEBUG_l({ \
- int i = -1; PERL_SI *p = PL_curstackinfo; \
- while (p) { i++; p = p->si_prev; } \
- Perl_deb(aTHX_ "pop STACKINFO %d at %s:%d\n", \
- i, __FILE__, __LINE__);}) \
- if (!prev) { \
- Perl_croak_popstack(); \
- } \
- SWITCHSTACK(PL_curstack,prev->si_stack); \
- /* don't free prev here, free them all at the END{} */ \
- PL_curstackinfo = prev; \
- } STMT_END
+
+#define POPSTACK pop_stackinfo()
+
#define POPSTACK_TO(s) \
STMT_START { \
- while (PL_curstack != s) { \
- dounwind(-1); \
- POPSTACK; \
- } \
+ while (PL_curstack != s) { \
+ dounwind(-1); \
+ rpp_obliterate_stack_to(0); \
+ POPSTACK; \
+ } \
} STMT_END
-#define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling)
-#define IN_PERL_RUNTIME (PL_curcop != &PL_compiling)
-
+/*
+=for apidoc_section $utility
+=for apidoc Amn|bool|IN_PERL_COMPILETIME
+Returns 1 if this macro is being called during the compilation phase of the
+program; otherwise 0;
+=for apidoc Amn|bool|IN_PERL_RUNTIME
+Returns 1 if this macro is being called during the execution phase of the
+program; otherwise 0;
+=cut
+*/
+#define IN_PERL_COMPILETIME cBOOL(PL_curcop == &PL_compiling)
+#define IN_PERL_RUNTIME cBOOL(PL_curcop != &PL_compiling)
/*
-=head1 Multicall Functions
+=for apidoc_section $multicall
-=for apidoc Ams||dMULTICALL
+=for apidoc Amn;||dMULTICALL
Declare local variables for a multicall. See L<perlcall/LIGHTWEIGHT CALLBACKS>.
-=for apidoc Ams||PUSH_MULTICALL
+=for apidoc Am;||PUSH_MULTICALL|CV* the_cv
Opening bracket for a lightweight callback.
See L<perlcall/LIGHTWEIGHT CALLBACKS>.
-=for apidoc Ams||MULTICALL
+=for apidoc Amn;||MULTICALL
Make a lightweight callback. See L<perlcall/LIGHTWEIGHT CALLBACKS>.
-=for apidoc Ams||POP_MULTICALL
+=for apidoc Amn;||POP_MULTICALL
Closing bracket for a lightweight callback.
See L<perlcall/LIGHTWEIGHT CALLBACKS>.
#define PUSH_MULTICALL_FLAGS(the_cv, flags) \
STMT_START { \
PERL_CONTEXT *cx; \
- CV * const _nOnclAshIngNamE_ = the_cv; \
- CV * const cv = _nOnclAshIngNamE_; \
- PADLIST * const padlist = CvPADLIST(cv); \
- multicall_oldcatch = CATCH_GET; \
- CATCH_SET(TRUE); \
- PUSHSTACKi(PERLSI_MULTICALL); \
- cx = cx_pushblock((CXt_SUB|CXp_MULTICALL|flags), (U8)gimme, \
+ CV * const _nOnclAshIngNamE_ = the_cv; \
+ CV * const cv = _nOnclAshIngNamE_; \
+ PADLIST * const padlist = CvPADLIST(cv); \
+ multicall_oldcatch = CATCH_GET; \
+ CATCH_SET(TRUE); \
+ PUSHSTACKi(PERLSI_MULTICALL); \
+ cx = cx_pushblock((CXt_SUB|CXp_MULTICALL|flags), (U8)gimme, \
PL_stack_sp, PL_savestack_ix); \
cx_pushsub(cx, cv, NULL, 0); \
- SAVEOP(); \
+ SAVEOP(); \
if (!(flags & CXp_SUB_RE_FAKE)) \
CvDEPTH(cv)++; \
- if (CvDEPTH(cv) >= 2) \
- Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
- PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
- multicall_cop = CvSTART(cv); \
+ if (CvDEPTH(cv) >= 2) \
+ Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
+ PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
+ multicall_cop = CvSTART(cv); \
} STMT_END
#define MULTICALL \
STMT_START { \
- PL_op = multicall_cop; \
- CALLRUNOPS(aTHX); \
+ PL_op = multicall_cop; \
+ CALLRUNOPS(aTHX); \
} STMT_END
#define POP_MULTICALL \
STMT_START { \
PERL_CONTEXT *cx; \
- cx = CX_CUR(); \
- CX_LEAVE_SCOPE(cx); \
+ cx = CX_CUR(); \
+ CX_LEAVE_SCOPE(cx); \
cx_popsub_common(cx); \
gimme = cx->blk_gimme; \
PERL_UNUSED_VAR(gimme); /* for API */ \
- cx_popblock(cx); \
- CX_POP(cx); \
- POPSTACK; \
- CATCH_SET(multicall_oldcatch); \
- SPAGAIN; \
+ cx_popblock(cx); \
+ CX_POP(cx); \
+ POPSTACK; \
+ CATCH_SET(multicall_oldcatch); \
+ SPAGAIN; \
} STMT_END
/* Change the CV of an already-pushed MULTICALL CxSUB block.
#define CHANGE_MULTICALL_FLAGS(the_cv, flags) \
STMT_START { \
- CV * const _nOnclAshIngNamE_ = the_cv; \
- CV * const cv = _nOnclAshIngNamE_; \
- PADLIST * const padlist = CvPADLIST(cv); \
+ CV * const _nOnclAshIngNamE_ = the_cv; \
+ CV * const cv = _nOnclAshIngNamE_; \
+ PADLIST * const padlist = CvPADLIST(cv); \
PERL_CONTEXT *cx = CX_CUR(); \
- assert(CxMULTICALL(cx)); \
+ assert(CxMULTICALL(cx)); \
cx_popsub_common(cx); \
- cx->cx_type = (CXt_SUB|CXp_MULTICALL|flags); \
+ cx->cx_type = (CXt_SUB|CXp_MULTICALL|flags); \
cx_pushsub(cx, cv, NULL, 0); \
if (!(flags & CXp_SUB_RE_FAKE)) \
CvDEPTH(cv)++; \
- if (CvDEPTH(cv) >= 2) \
- Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
- PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
- multicall_cop = CvSTART(cv); \
+ if (CvDEPTH(cv) >= 2) \
+ Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
+ PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
+ multicall_cop = CvSTART(cv); \
} STMT_END
/*
* ex: set ts=8 sts=4 sw=4 et:
https://perl5.git.perl.org / perl5.git / blobdiff