From bf3f03c9258dab45fee891007c7806f2d095db09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@ruby-lang.org>
Date: Thu, 2 Jul 2020 09:44:23 +0900
Subject: integer.rbinc: do not generate C functions

This changeset changes for instance Integer#integer? from:

    == disasm: #<ISeq:to_i@<internal:integer>:66 (66,2)-(69,5)> (catch: FALSE)
    0000 opt_invokebuiltin_delegate_leave       <builtin!_bi7/0>, 0       (68)[LiCa]
    0003 leave                                                            (69)[Re]

to:

    == disasm: #<ISeq:to_i@<internal:integer>:66 (66,2)-(69,5)> (catch: FALSE)
    0000 putself                                                          (68)[LiCa]
    0001 leave                                                            (69)[Re]

which is of course faster.
---
 integer.rb | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/integer.rb b/integer.rb
index a9e27345f4..daf11b088f 100644
--- a/integer.rb
+++ b/integer.rb
@@ -23,8 +23,7 @@ class Integer
   #
   #  Since +int+ is already an Integer, this always returns +true+.
   def integer?
-    Primitive.attr! 'inline'
-    Primitive.cexpr! 'Qtrue'
+    return true
   end
 
   def magnitude
@@ -53,8 +52,7 @@ class Integer
   #
   #  For example, <code>?a.ord</code> returns 97 both in 1.8 and 1.9.
   def ord
-    Primitive.attr! 'inline'
-    Primitive.cexpr! 'self'
+    return self
   end
 
   #  call-seq:
@@ -64,8 +62,7 @@ class Integer
   #
   #  #to_int is an alias for #to_i.
   def to_i
-    Primitive.attr! 'inline'
-    Primitive.cexpr! 'self'
+    return self
   end
 
   #  call-seq:
@@ -73,8 +70,7 @@ class Integer
   #
   #  Since +int+ is already an Integer, returns +self+.
   def to_int
-    Primitive.attr! 'inline'
-    Primitive.cexpr! 'self'
+    return self
   end
 
   # call-seq:
-- 
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