Improve performance some `Integer` and `Float` methods [Feature #19085] (#6638)

* Improve some Integer and Float methods

* Using alias and Remove unnecessary code

* Remove commentout code

benchmark/numeric_methods.yml

@@ -10,4 +10,20 @@ benchmark:
     int.finite?
   infinite?: |
     int.infinite?
+  integer_real: |
+    int.real
+  float_real: |
+    flo.real
+  integr_imag: |
+    int.imag
+  float_imag: |
+    flo.imag
+  integer_conj: |
+    int.conj
+  float_conj: |
+    flo.conj
+  integer_numerator: |
+    int.numerator
+  integer_denominator: |
+    int.denominator
 loop_count: 20000000

complex.c

@@ -2159,31 +2159,6 @@ nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
     return nucomp_convert(klass, a1, a2, TRUE);
 }
 
-/*
- * call-seq:
- *    num.real  ->  self
- *
- * Returns self.
- */
-static VALUE
-numeric_real(VALUE self)
-{
-    return self;
-}
-
-/*
- * call-seq:
- *    num.imag       ->  0
- *    num.imaginary  ->  0
- *
- * Returns zero.
- */
-static VALUE
-numeric_imag(VALUE self)
-{
-    return INT2FIX(0);
-}
-
 /*
  * call-seq:
  *    num.abs2  ->  real
@@ -2255,19 +2230,6 @@ numeric_polar(VALUE self)
     return rb_assoc_new(abs, arg);
 }
 
-/*
- * call-seq:
- *    num.conj       ->  self
- *    num.conjugate  ->  self
- *
- * Returns self.
- */
-static VALUE
-numeric_conj(VALUE self)
-{
-    return self;
-}
-
 /*
  * call-seq:
  *    flo.arg    ->  0 or float
@@ -2433,9 +2395,6 @@ Init_Complex(void)
 
     rb_define_private_method(CLASS_OF(rb_cComplex), "convert", nucomp_s_convert, -1);
 
-    rb_define_method(rb_cNumeric, "real", numeric_real, 0);
-    rb_define_method(rb_cNumeric, "imaginary", numeric_imag, 0);
-    rb_define_method(rb_cNumeric, "imag", numeric_imag, 0);
     rb_define_method(rb_cNumeric, "abs2", numeric_abs2, 0);
     rb_define_method(rb_cNumeric, "arg", numeric_arg, 0);
     rb_define_method(rb_cNumeric, "angle", numeric_arg, 0);
@@ -2443,8 +2402,6 @@ Init_Complex(void)
     rb_define_method(rb_cNumeric, "rectangular", numeric_rect, 0);
     rb_define_method(rb_cNumeric, "rect", numeric_rect, 0);
     rb_define_method(rb_cNumeric, "polar", numeric_polar, 0);
-    rb_define_method(rb_cNumeric, "conjugate", numeric_conj, 0);
-    rb_define_method(rb_cNumeric, "conj", numeric_conj, 0);
 
     rb_define_method(rb_cFloat, "arg", float_arg, 0);
     rb_define_method(rb_cFloat, "angle", float_arg, 0);

numeric.rb

@@ -6,7 +6,17 @@ class Numeric
   #  Returns +true+ if +num+ is a real number (i.e. not Complex).
   #
   def real?
-    return true
+    true
+  end
+
+  #
+  # call-seq:
+  #    num.real  ->  self
+  #
+  # Returns self.
+  #
+  def real
+    self
   end
 
   #
@@ -19,7 +29,7 @@ class Numeric
   #      1.integer?     #=> true
   #
   def integer?
-    return false
+    false
   end
 
   #
@@ -29,7 +39,7 @@ class Numeric
   #  Returns +true+ if +num+ is a finite number, otherwise returns +false+.
   #
   def finite?
-    return true
+    true
   end
 
   #
@@ -40,8 +50,34 @@ class Numeric
   #  finite, <code>-Infinity</code>, or <code>+Infinity</code>.
   #
   def infinite?
-    return nil
+    nil
   end
+
+  #
+  # call-seq:
+  #    num.imag       ->  0
+  #    num.imaginary  ->  0
+  #
+  # Returns zero.
+  #
+  def imaginary
+    0
+  end
+
+  alias imag imaginary
+
+  #
+  # call-seq:
+  #    num.conj       ->  self
+  #    num.conjugate  ->  self
+  #
+  # Returns self.
+  #
+  def conjugate
+    self
+  end
+
+  alias conj conjugate
 end
 
 class Integer
@@ -146,7 +182,7 @@ class Integer
   #
   #  Since +int+ is already an Integer, this always returns +true+.
   def integer?
-    return true
+    true
   end
 
   alias magnitude abs
@@ -178,7 +214,7 @@ class Integer
   #
   #  For example, <code>?a.ord</code> returns 97 both in 1.8 and 1.9.
   def ord
-    return self
+    self
   end
 
   #
@@ -208,7 +244,7 @@ class Integer
   #
   #  #to_int is an alias for #to_i.
   def to_i
-    return self
+    self
   end
 
   #  call-seq:
@@ -216,7 +252,7 @@ class Integer
   #
   #  Since +int+ is already an Integer, returns +self+.
   def to_int
-    return self
+    self
   end
 
   # call-seq:
@@ -244,6 +280,26 @@ class Integer
   def ceildiv(other)
     -div(-other)
   end
+
+  #
+  # call-seq:
+  #    int.numerator  ->  self
+  #
+  # Returns self.
+  #
+  def numerator
+    self
+  end
+
+  #
+  # call-seq:
+  #    int.denominator  ->  1
+  #
+  # Returns 1.
+  #
+  def denominator
+    1
+  end
 end
 
 #  call-seq:
@@ -276,7 +332,7 @@ class Float
   # Since +float+ is already a Float, returns +self+.
   #
   def to_f
-    return self
+    self
   end
 
   #

rational.c

@@ -2059,30 +2059,6 @@ rb_rational_canonicalize(VALUE x)
     return x;
 }
 
-/*
- * call-seq:
- *    int.numerator  ->  self
- *
- * Returns self.
- */
-static VALUE
-integer_numerator(VALUE self)
-{
-    return self;
-}
-
-/*
- * call-seq:
- *    int.denominator  ->  1
- *
- * Returns 1.
- */
-static VALUE
-integer_denominator(VALUE self)
-{
-    return INT2FIX(1);
-}
-
 /*
  * call-seq:
  *    flo.numerator  ->  integer
@@ -2832,9 +2808,6 @@ Init_Rational(void)
     rb_define_method(rb_cNumeric, "denominator", numeric_denominator, 0);
     rb_define_method(rb_cNumeric, "quo", rb_numeric_quo, 1);
 
-    rb_define_method(rb_cInteger, "numerator", integer_numerator, 0);
-    rb_define_method(rb_cInteger, "denominator", integer_denominator, 0);
-
     rb_define_method(rb_cFloat, "numerator", rb_float_numerator, 0);
     rb_define_method(rb_cFloat, "denominator", rb_float_denominator, 0);