https://git.ruby-lang.org/ruby.git/commit/?id=ea717d1ce1

From ea717d1ce1199bbd2e6532f1607bab6e1a1f9274 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@r...>
Date: Tue, 17 Dec 2019 13:22:24 +0900
Subject: convert macros into inline functions

For better readability.

diff --git a/vm_insnhelper.h b/vm_insnhelper.h
index c96522f..aabbf83 100644
--- a/vm_insnhelper.h
+++ b/vm_insnhelper.h
@@ -120,17 +120,20 @@ enum vm_regan_acttype { https://github.com/ruby/ruby/blob/trunk/vm_insnhelper.h#L120
  * because inline method cache does not care about receiver.
  */
 
-#define CC_SET_FASTPATH(cc, func, enabled) do { \
-    if (LIKELY(enabled)) ((cc)->call = (func)); \
-} while (0)
+static inline void
+CC_SET_FASTPATH(CALL_CACHE cc, vm_call_handler func, bool enabled)
+{
+    if (LIKELY(enabled)) {
+        cc->call = func;
+    }
+}
 
-#define CC_SET_ME(cc, newme) do { \
-    CALL_CACHE ccx = (cc); \
-    const rb_callable_method_entry_t *mex = (newme); \
-    const rb_method_definition_t *defx = mex ? mex->def : NULL; \
-    ccx->me = mex; \
-    ccx->def = defx; \
-} while (0)
+static inline void
+CC_SET_ME(CALL_CACHE cc, const rb_callable_method_entry_t *me)
+{
+    cc->me = me;
+    cc->def = me ? me->def : NULL;
+}
 
 #define GET_BLOCK_HANDLER() (GET_LEP()[VM_ENV_DATA_INDEX_SPECVAL])
 
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