Remove `Kernel#class_defined?` which is not available in CRuby; #3829

mrbgems/mruby-kernel-ext/test/kernel.rb

@@ -49,21 +49,23 @@ assert('Kernel#__method__') do
 end
 
 assert('Kernel#Integer') do
-  assert_equal(123, Integer(123.999)) if class_defined?("Float")
   assert_equal(26, Integer("0x1a"))
   assert_equal(930, Integer("0930", 10))
   assert_equal(7, Integer("111", 2))
   assert_equal(0, Integer("0"))
   assert_equal(0, Integer("00000"))
   assert_raise(TypeError) { Integer(nil) }
+  skip unless Object.const_defined?(:Float)
+  assert_equal(123, Integer(123.999))
 end
 
 assert('Kernel#Float') do
+  skip unless Object.const_defined?(:Float)
   assert_equal(1.0, Float(1))
   assert_equal(123.456, Float(123.456))
   assert_equal(123.456, Float("123.456"))
   assert_raise(TypeError) { Float(nil) }
-end if class_defined?("Float")
+end
 
 assert('Kernel#String') do
   assert_equal("main", String(self))

mrbgems/mruby-numeric-ext/test/numeric.rb

@@ -14,8 +14,9 @@ assert('Integer#div') do
 end
 
 assert('Float#div') do
+  skip unless Object.const_defined?(:Float)
   assert_float 52, 365.2425.div(7)
-end if class_defined?("Float")
+end
 
 assert('Integer#zero?') do
   assert_equal true, 0.zero?

mrbgems/mruby-object-ext/test/nil.rb

@@ -3,8 +3,9 @@ assert('NilClass#to_a') do
 end
 
 assert('NilClass#to_f') do
+  skip unless Object.const_defined?(:Float)
   assert_equal 0.0, nil.to_f
-end if class_defined?("Float")
+end
 
 assert('NilClass#to_i') do
   assert_equal 0, nil.to_i

mrbgems/mruby-objectspace/test/objectspace.rb

 assert('ObjectSpace.count_objects') do
   h = {}
-  f = Fiber.new {} if Object.const_defined? :Fiber
+  f = Fiber.new {} if Object.const_defined?(:Fiber)
   ObjectSpace.count_objects(h)
   assert_kind_of(Hash, h)
   assert_true(h.keys.all? {|x| x.is_a?(Symbol) || x.is_a?(Integer) })

mrbgems/mruby-sprintf/test/sprintf.rb

@@ -4,12 +4,14 @@
 assert('String#%') do
   assert_equal "one=1", "one=%d" % 1
   assert_equal "1 one", "%d %s" % [ 1, "one" ]
-  assert_equal "1.0", "%3.1f" % 1.01 if class_defined?("Float")
   assert_equal "123 < 456", "%{num} < %<str>s" % { num: 123, str: "456" }
   assert_equal 15, ("%b" % (1<<14)).size
+  skip unless Object.const_defined?(:Float)
+  assert_equal "1.0", "%3.1f" % 1.01
 end
 
 assert('String#% with inf') do
+  skip unless Object.const_defined?(:Float)
   inf = Float::INFINITY
 
   assert_equal "Inf", "%f" % inf
@@ -35,9 +37,10 @@ assert('String#% with inf') do
   assert_equal " Inf", "% 3f" % inf
   assert_equal " Inf", "% 4f" % inf
   assert_equal "  Inf", "% 5f" % inf
-end if class_defined?("Float")
+end
 
 assert('String#% with nan') do
+  skip unless Object.const_defined?(:Float)
   nan = Float::NAN
 
   assert_equal "NaN", "%f" % nan
@@ -63,7 +66,7 @@ assert('String#% with nan') do
   assert_equal " NaN", "% 3f" % nan
   assert_equal " NaN", "% 4f" % nan
   assert_equal "  NaN", "% 5f" % nan
-end if class_defined?("Float")
+end
 
 assert("String#% with invalid chr") do
   begin

mrblib/float.rb

@@ -6,4 +6,4 @@ class Float
   # mruby special - since mruby integers may be upgraded to floats,
   # floats should be compatible to integers.
   include Integral
-end if class_defined?("Float")
+end if Object.const_defined?(:Float)

mrblib/numeric.rb

@@ -104,7 +104,7 @@ module Integral
     raise ArgumentError, "step can't be 0" if step == 0
     return to_enum(:step, num, step) unless block
 
-    i = if class_defined?("Float") && num.kind_of?(Float) then self.to_f else self end
+    i = if Object.const_defined?(:Float) && num.kind_of?(Float) then self.to_f else self end
     if num == nil
       while true
         block.call(i)

src/kernel.c

@@ -640,16 +640,6 @@ mrb_f_raise(mrb_state *mrb, mrb_value self)
   return mrb_nil_value();            /* not reached */
 }
 
-static mrb_value
-mrb_krn_class_defined(mrb_state *mrb, mrb_value self)
-{
-  mrb_value str;
-
-  mrb_get_args(mrb, "S", &str);
-  return mrb_bool_value(mrb_class_defined(mrb, RSTRING_PTR(str)));
-}
-
-
 /* 15.3.1.3.41 */
 /*
  *  call-seq:
@@ -847,8 +837,6 @@ mrb_init_kernel(mrb_state *mrb)
   mrb_define_method(mrb, krn, "__to_int",                   mrb_to_int,                      MRB_ARGS_NONE()); /* internal */
   mrb_define_method(mrb, krn, "__to_str",                   mrb_to_str,                      MRB_ARGS_NONE()); /* internal */
 
-  mrb_define_method(mrb, krn, "class_defined?",             mrb_krn_class_defined,           MRB_ARGS_REQ(1));
-
   mrb_include_module(mrb, mrb->object_class, mrb->kernel_module);
   mrb_define_alias(mrb, mrb->module_class, "dup", "clone"); /* XXX */
 }

test/t/array.rb

@@ -55,9 +55,10 @@ assert('Array#[]', '15.2.12.5.4') do
   assert_equal(nil, [1,2,3].[](-4))
 
   a = [ "a", "b", "c", "d", "e" ]
-  assert_equal("b", a[1.1]) if class_defined?("Float")
   assert_equal(["b", "c"], a[1,2])
   assert_equal(["b", "c", "d"], a[1..-2])
+  skip unless Object.const_defined?(:Float)
+  assert_equal("b", a[1.1])
 end
 
 assert('Array#[]=', '15.2.12.5.5') do

test/t/class.rb

@@ -350,7 +350,7 @@ assert('singleton tests') do
         7
       end
     end
-  end if class_defined?("Float")
+  end if Object.const_defined?(:Float)
 end
 
 assert('clone Class') do

test/t/float.rb

 ##
 # Float ISO Test
 
-if class_defined?("Float")
+if Object.const_defined?(:Float)
 
 assert('Float', '15.2.9') do
   assert_equal Class, Float.class
@@ -206,4 +206,4 @@ assert('Float#>>') do
   assert_equal(-1, -23.0 >> 128)
 end
 
-end # class_defined?("Float")
+end # const_defined?(:Float)

test/t/hash.rb

@@ -8,8 +8,9 @@ end
 assert('Hash#==', '15.2.13.4.1') do
   assert_true({ 'abc' => 'abc' } == { 'abc' => 'abc' })
   assert_false({ 'abc' => 'abc' } ==  { 'cba' => 'cba' })
-  assert_true({ :equal => 1 } == { :equal => 1.0 }) if class_defined?("Float")
   assert_false({ :a => 1 } == true)
+  skip unless Object.const_defined?(:Float)
+  assert_true({ :equal => 1 } == { :equal => 1.0 })
 end
 
 assert('Hash#[]', '15.2.13.4.2') do

test/t/integer.rb

@@ -7,10 +7,10 @@ end
 
 assert('Integer#+', '15.2.8.3.1') do
   a = 1+1
-  b = 1+1.0 if class_defined?("Float")
+  b = 1+1.0 if Object.const_defined?(:Float)
 
   assert_equal 2, a
-  assert_equal 2.0, b if class_defined?("Float")
+  assert_equal 2.0, b if Object.const_defined?(:Float)
 
   assert_raise(TypeError){ 0+nil }
   assert_raise(TypeError){ 1+nil }
@@ -18,40 +18,38 @@ assert('Integer#+', '15.2.8.3.1') do
   c = Mrbtest::FIXNUM_MAX + 1
   d = Mrbtest::FIXNUM_MAX.__send__(:+, 1)
 
-  if class_defined?("Float")
+  skip unless Object.const_defined?(:Float)
   e = Mrbtest::FIXNUM_MAX + 1.0
   assert_equal Float, c.class
   assert_equal Float, d.class
   assert_float e, c
   assert_float e, d
-  end
 end
 
 assert('Integer#-', '15.2.8.3.2') do
   a = 2-1
-  b = 2-1.0 if class_defined?("Float")
+  b = 2-1.0 if Object.const_defined?(:Float)
 
   assert_equal 1, a
-  assert_equal 1.0, b if class_defined?("Float")
+  assert_equal 1.0, b if Object.const_defined?(:Float)
 
   c = Mrbtest::FIXNUM_MIN - 1
   d = Mrbtest::FIXNUM_MIN.__send__(:-, 1)
 
-  if class_defined?("Float")
+  skip unless Object.const_defined?(:Float)
   e = Mrbtest::FIXNUM_MIN - 1.0
   assert_equal Float, c.class
   assert_equal Float, d.class
   assert_float e, c
   assert_float e, d
-  end
 end
 
 assert('Integer#*', '15.2.8.3.3') do
   a = 1*1
-  b = 1*1.0 if class_defined?("Float")
+  b = 1*1.0 if Object.const_defined?(:Float)
 
   assert_equal 1, a
-  assert_equal 1.0, b if class_defined?("Float")
+  assert_equal 1.0, b if Object.const_defined?(:Float)
 
   assert_raise(TypeError){ 0*nil }
   assert_raise(TypeError){ 1*nil }
@@ -59,13 +57,12 @@ assert('Integer#*', '15.2.8.3.3') do
   c = Mrbtest::FIXNUM_MAX * 2
   d = Mrbtest::FIXNUM_MAX.__send__(:*, 2)
 
-  if class_defined?("Float")
+  skip unless Object.const_defined?(:Float)
   e = Mrbtest::FIXNUM_MAX * 2.0
   assert_equal Float, c.class
   assert_equal Float, d.class
   assert_float e, c
   assert_float e, d
-  end
 end
 
 assert('Integer#/', '15.2.8.3.4') do
@@ -226,8 +223,9 @@ assert('Integer#times', '15.2.8.3.22') do
 end
 
 assert('Integer#to_f', '15.2.8.3.23') do
+  skip unless Object.const_defined?(:Float)
   assert_equal 1.0, 1.to_f
-end if class_defined?("Float")
+end
 
 assert('Integer#to_i', '15.2.8.3.24') do
   assert_equal 1, 1.to_i

test/t/numeric.rb

@@ -15,7 +15,8 @@ end
 
 assert('Numeric#abs', '15.2.7.4.3') do
   assert_equal(1, 1.abs)
-  assert_equal(1.0, -1.abs) if class_defined?("Float")
+  skip unless Object.const_defined?(:Float)
+  assert_equal(1.0, -1.abs)
 end
 
 assert('Numeric#pow') do

test/t/range.rb

@@ -8,7 +8,8 @@ end
 assert('Range#==', '15.2.14.4.1') do
   assert_true (1..10) == (1..10)
   assert_false (1..10) == (1..100)
-  assert_true (1..10) == Range.new(1.0, 10.0) if class_defined?("Float")
+  skip unless Object.const_defined?(:Float)
+  assert_true (1..10) == Range.new(1.0, 10.0)
 end
 
 assert('Range#===', '15.2.14.4.2') do

test/t/string.rb

@@ -155,7 +155,7 @@ assert('String#[]=') do
     d[-10] = 'X'
   end
 
-  if class_defined?("Float")
+  if Object.const_defined?(:Float)
    e = 'abc'
    e[1.1] = 'X'
    assert_equal 'aXc', e
@@ -618,7 +618,7 @@ assert('String#to_f', '15.2.10.5.38') do
   assert_float(12345.6789, c)
   assert_float(0, d)
   assert_float(Float::INFINITY, e)
-end if class_defined?("Float")
+end if Object.const_defined?(:Float)
 
 assert('String#to_i', '15.2.10.5.39') do
   a = ''.to_i