initial implementation of lvalue subroutines (slightly fixed

version of patch suggested by Ilya Zakharevich, which in turn
is based on the one suggested by Tuomas J. Lukka <lukka@iki.fi>)

p4raw-id: //depot/perl@4081

1 files changed, 4 insertions, 1 deletions

diff --git a/cop.h b/cop.h
index f23251b543..d0a59a0f1f 100644
--- a/cop.h
+++ b/cop.h
@@ -35,12 +35,15 @@ struct block_sub {
     AV *	argarray;
     U16		olddepth;
     U8		hasargs;
+    U8		lval;		/* XXX merge lval and hasargs? */
 };
 
 #define PUSHSUB(cx)							\
 	cx->blk_sub.cv = cv;						\
 	cx->blk_sub.olddepth = CvDEPTH(cv);				\
-	cx->blk_sub.hasargs = hasargs;
+	cx->blk_sub.hasargs = hasargs;					\
+	cx->blk_sub.lval = PL_op->op_private &                          \
+	                      (OPpLVAL_INTRO|OPpENTERSUB_INARGS);
 
 #define PUSHFORMAT(cx)							\
 	cx->blk_sub.cv = cv;						\