X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/2b9e0ab72974ddabc33d92aa62d36f45b365fcf4..b94c7836b478548336612cc06c8980319145cb35:/feature.h

diff --git a/feature.h b/feature.h
index 0b5f85c..370896e 100644
--- a/feature.h
+++ b/feature.h
@@ -15,6 +15,143 @@
 #define FEATURE_BUNDLE_515	3
 #define FEATURE_BUNDLE_CUSTOM	(HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
 
+#define CURRENT_HINTS \
+    (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
+#define CURRENT_FEATURE_BUNDLE \
+    ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
+
+/* Avoid using ... && Perl_feature_is_enabled(...) as that triggers a bug in
+   the HP-UX cc on PA-RISC */
+#define FEATURE_IS_ENABLED(name)				        \
+	((CURRENT_HINTS							 \
+	   & HINT_LOCALIZE_HH)						  \
+	    ? Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)) : FALSE)
+/* The longest string we pass in.  */
+#define MAX_FEATURE_LEN (sizeof("postderef_qq")-1)
+
+#define FEATURE_FC_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("fc")) \
+    )
+
+#define FEATURE_SAY_IS_ENABLED \
+    ( \
+	(CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
+	 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("say")) \
+    )
+
+#define FEATURE_STATE_IS_ENABLED \
+    ( \
+	(CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
+	 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("state")) \
+    )
+
+#define FEATURE_SWITCH_IS_ENABLED \
+    ( \
+	(CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
+	 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("switch")) \
+    )
+
+#define FEATURE_EVALBYTES_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("evalbytes")) \
+    )
+
+#define FEATURE_POSTDEREF_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("postderef") \
+    )
+
+#define FEATURE_ARYBASE_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("arybase")) \
+    )
+
+#define FEATURE_SIGNATURES_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("signatures") \
+    )
+
+#define FEATURE___SUB___IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("__SUB__")) \
+    )
+
+#define FEATURE_REFALIASING_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("refaliasing") \
+    )
+
+#define FEATURE_LEXSUBS_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("lexsubs") \
+    )
+
+#define FEATURE_POSTDEREF_QQ_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("postderef_qq") \
+    )
+
+#define FEATURE_UNIEVAL_IS_ENABLED \
+    ( \
+	CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("unieval")) \
+    )
+
+#define FEATURE_UNICODE_IS_ENABLED \
+    ( \
+	(CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
+	 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
+     || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
+	 FEATURE_IS_ENABLED("unicode")) \
+    )
+
+
 #endif /* PERL_CORE or PERL_EXT */
 
+#ifdef PERL_IN_OP_C
+PERL_STATIC_INLINE void
+S_enable_feature_bundle(pTHX_ SV *ver)
+{
+    SV *comp_ver = sv_newmortal();
+    PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
+	     | (
+		  (sv_setnv(comp_ver, 5.015),
+		   vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
+			? FEATURE_BUNDLE_515 :
+		  (sv_setnv(comp_ver, 5.011),
+		   vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
+			? FEATURE_BUNDLE_511 :
+		  (sv_setnv(comp_ver, 5.009005),
+		   vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
+			? FEATURE_BUNDLE_510 :
+			  FEATURE_BUNDLE_DEFAULT
+	       ) << HINT_FEATURE_SHIFT;
+    /* special case */
+    assert(PL_curcop == &PL_compiling);
+    if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
+    else			    PL_hints &= ~HINT_UNI_8_BIT;
+}
+#endif /* PERL_IN_OP_C */
+
 /* ex: set ro: */