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Diffstat (limited to 'op.h')
-rw-r--r--op.h26
1 files changed, 19 insertions, 7 deletions
diff --git a/op.h b/op.h
index 630e94a56e..961ebcfd0c 100644
--- a/op.h
+++ b/op.h
@@ -41,11 +41,20 @@ typedef U32 PADOFFSET;
U8 op_flags; \
U8 op_private;
-#define GIMME (op->op_flags & OPf_KNOW ? op->op_flags & OPf_LIST : dowantarray())
+#define OP_GIMME(op,dfl) \
+ (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \
+ ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \
+ ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \
+ dfl)
+
+#define GIMME_V OP_GIMME(op, block_gimme())
/* Public flags */
-#define OPf_LIST 1 /* Do operator in list context. */
-#define OPf_KNOW 2 /* Context is known. */
+
+#define OPf_WANT 3 /* Mask for "want" bits: */
+#define OPf_WANT_VOID 1 /* Want nothing */
+#define OPf_WANT_SCALAR 2 /* Want single value */
+#define OPf_WANT_LIST 3 /* Want list of any length */
#define OPf_KIDS 4 /* There is a firstborn child. */
#define OPf_PARENS 8 /* This operator was parenthesized. */
/* (Or block needs explicit scope entry.) */
@@ -65,6 +74,12 @@ typedef U32 PADOFFSET;
/* On OP_ENTERSUB || OP_NULL, saw a "do". */
/* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
+/* old names; don't use in new code, but don't break them, either */
+#define OPf_LIST 1
+#define OPf_KNOW 2
+#define GIMME \
+ (op->op_flags & OPf_KNOW ? op->op_flags & OPf_LIST : dowantarray())
+
/* Private for lvalues */
#define OPpLVAL_INTRO 128 /* Lvalue must be localized */
@@ -105,11 +120,8 @@ typedef U32 PADOFFSET;
/* Private for OP_LIST */
#define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */
-/* Private for OP_LEAVE, OP_DELETE, and friends(?) */
-#define OPpLEAVE_VOID 64 /* No need to copy out values. */
-
/* Private for OP_DELETE */
-#define OPpSLICE 32 /* Operating on a list of keys */
+#define OPpSLICE 64 /* Operating on a list of keys */
/* Private for OP_SORT, OP_PRTF, OP_SPRINTF, string cmp'n, and case changers */
#define OPpLOCALE 64 /* Use locale */