Remove some overhead from methods defined in Ruby in Complex.

mrbgems/mruby-complex/mrblib/complex.rb

@@ -1,19 +1,8 @@
 class Complex < Numeric
-  def initialize(real, imaginary)
-    real = real.to_f unless real.is_a? Numeric
-    imaginary = imaginary.to_f unless imaginary.is_a? Numeric
-    @real = real
-    @imaginary = imaginary
-  end
-
   def self.polar(abs, arg = 0)
     Complex(abs * Math.cos(arg), abs * Math.sin(arg))
   end
 
-  def self.rectangular(real, imaginary = 0)
-    _new(real, imaginary)
-  end
-
   def inspect
     "(#{to_s})"
   end
@@ -23,43 +12,43 @@ class Complex < Numeric
   end
 
   def +@
-    Complex._new(real, imaginary)
+    Complex(real, imaginary)
   end
 
   def -@
-    Complex._new(-real, -imaginary)
+    Complex(-real, -imaginary)
   end
 
   def +(rhs)
     if rhs.is_a? Complex
-      Complex._new(real + rhs.real, imaginary + rhs.imaginary)
+      Complex(real + rhs.real, imaginary + rhs.imaginary)
     elsif rhs.is_a? Numeric
-      Complex._new(real + rhs, imaginary)
+      Complex(real + rhs, imaginary)
     end
   end
 
   def -(rhs)
     if rhs.is_a? Complex
-      Complex._new(real - rhs.real, imaginary - rhs.imaginary)
+      Complex(real - rhs.real, imaginary - rhs.imaginary)
     elsif rhs.is_a? Numeric
-      Complex._new(real - rhs, imaginary)
+      Complex(real - rhs, imaginary)
     end
   end
 
   def *(rhs)
     if rhs.is_a? Complex
-      Complex._new(real * rhs.real - imaginary * rhs.imaginary, real * rhs.imaginary + rhs.real * imaginary)
+      Complex(real * rhs.real - imaginary * rhs.imaginary, real * rhs.imaginary + rhs.real * imaginary)
     elsif rhs.is_a? Numeric
-      Complex._new(real * rhs, imaginary * rhs)
+      Complex(real * rhs, imaginary * rhs)
     end
   end
 
   def /(rhs)
     if rhs.is_a? Complex
       div = rhs.real * rhs.real + rhs.imaginary * rhs.imaginary
-      Complex._new((real * rhs.real + imaginary * rhs.imaginary) / div, (rhs.real * imaginary - real * rhs.imaginary) / div)
+      Complex((real * rhs.real + imaginary * rhs.imaginary) / div, (rhs.real * imaginary - real * rhs.imaginary) / div)
     elsif rhs.is_a? Numeric
-      Complex._new(real / rhs, imaginary / rhs)
+      Complex(real / rhs, imaginary / rhs)
     end
   end
   alias_method :quo, :/
@@ -117,12 +106,6 @@ class Complex < Numeric
   alias_method :imag, :imaginary
 end
 
-module Kernel
-  def Complex(real, imaginary = 0)
-    Complex.rectangular(real, imaginary)
-  end
-end
-
 [Fixnum, Float].each do |cls|
   [:+, :-, :*, :/, :==].each do |op|
     cls.instance_exec do

mrbgems/mruby-complex/src/complex.c

@@ -76,11 +76,11 @@ complex_imaginary(mrb_state *mrb, mrb_value self)
 }
 
 static mrb_value
-complex_s_new(mrb_state *mrb, mrb_value self)
+complex_s_rect(mrb_state *mrb, mrb_value self)
 {
-  mrb_float real, imaginary;
+  mrb_float real, imaginary = 0.0;
 
-  mrb_get_args(mrb, "ff", &real, &imaginary);
+  mrb_get_args(mrb, "f|f", &real, &imaginary);
   return complex_new(mrb, real, imaginary);
 }
 
@@ -125,7 +125,8 @@ void mrb_mruby_complex_gem_init(mrb_state *mrb)
   comp = mrb_define_class(mrb, "Complex", mrb_class_get(mrb, "Numeric"));
   //MRB_SET_INSTANCE_TT(comp, MRB_TT_ISTRUCT);
   mrb_undef_class_method(mrb, comp, "new");
-  mrb_define_class_method(mrb, comp, "_new", complex_s_new, MRB_ARGS_REQ(2));
+  mrb_define_class_method(mrb, comp, "rectangular", complex_s_rect, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
+  mrb_define_method(mrb, mrb->kernel_module, "Complex", complex_s_rect, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
   mrb_define_method(mrb, comp, "real", complex_real, MRB_ARGS_NONE());
   mrb_define_method(mrb, comp, "imaginary", complex_imaginary, MRB_ARGS_NONE());
 #ifndef MRB_WITHOUT_FLOAT