[PATCH 1/2] hoist out rb_call_info_kw_arg_bytes to inline function

[Eric Wong <e@80x24.org>]

* vm_core.h (rb_call_info_kw_arg_bytes): extract from below
* compile.c (iseq_build_callinfo_from_hash): use above

This will be use for implementing iseq_memsize
---
 compile.c | 2 +-
 vm_core.h | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/compile.c b/compile.c
index 637f56f..26ee3b2 100644
--- a/compile.c
+++ b/compile.c
@@ -5917,7 +5917,7 @@ iseq_build_callinfo_from_hash(rb_iseq_t *iseq, VALUE op)
 	if (!NIL_P(vkw_arg)) {
 	    int i;
 	    int len = RARRAY_LENINT(vkw_arg);
-	    size_t n = sizeof(rb_call_info_kw_arg_t) + sizeof(VALUE) * (len - 1);
+	    size_t n = rb_call_info_kw_arg_bytes(len);
 
 	    kw_arg = xmalloc(n);
 	    kw_arg->keyword_len = len;
diff --git a/vm_core.h b/vm_core.h
index a032daa..6745837 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -180,6 +180,12 @@ typedef struct rb_call_info_kw_arg_struct {
     VALUE keywords[1];
 } rb_call_info_kw_arg_t;
 
+static inline size_t
+rb_call_info_kw_arg_bytes(int keyword_len)
+{
+    return sizeof(rb_call_info_kw_arg_t) + sizeof(VALUE) * (keyword_len - 1);
+}
+
 enum method_missing_reason {
     MISSING_NOENTRY   = 0x00,
     MISSING_PRIVATE   = 0x01,
-- 
EW