3 files changed, 5 insertions, 52 deletions
diff --git a/mrbgems/mruby-array-ext/mrblib/array.rb b/mrbgems/mruby-array-ext/mrblib/array.rb
index 5492ba2eb..f3246af4f 100644
--- a/mrbgems/mruby-array-ext/mrblib/array.rb
+++ b/mrbgems/mruby-array-ext/mrblib/array.rb
@@ -688,37 +688,6 @@ class Array
 
   ##
   #  call-seq:
-  #     ary.delete_if { |item| block }  -> ary
-  #     ary.delete_if                   -> Enumerator
-  #
-  #  Deletes every element of +self+ for which block evaluates to +true+.
-  #
-  #  The array is changed instantly every time the block is called, not after
-  #  the iteration is over.
-  #
-  #  See also Array#reject!
-  #
-  #  If no block is given, an Enumerator is returned instead.
-  #
-  #     scores = [ 97, 42, 75 ]
-  #     scores.delete_if {|score| score < 80 }   #=> [97]
-
-  def delete_if(&block)
-    return to_enum :delete_if unless block
-
-    idx = 0
-    while idx < self.size do
-      if block.call(self[idx])
-        self.delete_at(idx)
-      else
-        idx += 1
-      end
-    end
-    self
-  end
-
-  ##
-  #  call-seq:
   #     ary.keep_if { |item| block } -> ary
   #     ary.keep_if                  -> Enumerator
   #
diff --git a/mrbgems/mruby-array-ext/src/array.c b/mrbgems/mruby-array-ext/src/array.c
index ab6d99133..3ce5d822e 100644
--- a/mrbgems/mruby-array-ext/src/array.c
+++ b/mrbgems/mruby-array-ext/src/array.c
@@ -28,9 +28,8 @@ static mrb_value
 mrb_ary_assoc(mrb_state *mrb, mrb_value ary)
 {
   mrb_int i;
-  mrb_value v, k;
-
-  mrb_get_args(mrb, "o", &k);
+  mrb_value v;
+  mrb_value k = mrb_get_arg1(mrb);
 
   for (i = 0; i < RARRAY_LEN(ary); ++i) {
     v = mrb_check_array_type(mrb, RARRAY_PTR(ary)[i]);
@@ -59,9 +58,8 @@ static mrb_value
 mrb_ary_rassoc(mrb_state *mrb, mrb_value ary)
 {
   mrb_int i;
-  mrb_value v, value;
-
-  mrb_get_args(mrb, "o", &value);
+  mrb_value v;
+  mrb_value value = mrb_get_arg1(mrb);
 
   for (i = 0; i < RARRAY_LEN(ary); ++i) {
     v = RARRAY_PTR(ary)[i];
@@ -140,9 +138,8 @@ mrb_ary_slice_bang(mrb_state *mrb, mrb_value self)
   mrb_ary_modify(mrb, a);
 
   if (mrb_get_argc(mrb) == 1) {
-    mrb_value index;
+    mrb_value index = mrb_get_arg1(mrb);
 
-    mrb_get_args(mrb, "o|i", &index, &len);
     switch (mrb_type(index)) {
     case MRB_TT_RANGE:
       if (mrb_range_beg_len(mrb, index, &i, &len, ARY_LEN(a), TRUE) == MRB_RANGE_OK) {
diff --git a/mrbgems/mruby-array-ext/test/array.rb b/mrbgems/mruby-array-ext/test/array.rb
index 51172f9a8..2955ef391 100644
--- a/mrbgems/mruby-array-ext/test/array.rb
+++ b/mrbgems/mruby-array-ext/test/array.rb
@@ -299,19 +299,6 @@ end
 #assert("Array#bsearch_index") do
 #end
 
-assert("Array#delete_if") do
-  a = [1, 2, 3, 4, 5]
-  assert_equal [1, 2, 3, 4, 5], a.delete_if { false }
-  assert_equal [1, 2, 3, 4, 5], a
-
-  a = [1, 2, 3, 4, 5]
-  assert_equal [], a.delete_if { true }
-  assert_equal [], a
-
-  a = [ 1, 2, 3, 4, 5 ]
-  assert_equal [1, 2, 3], a.delete_if { |val| val > 3 }
-end
-
 assert("Array#keep_if") do
   a = [1, 2, 3, 4, 5]
   assert_equal [1, 2, 3, 4, 5], a.keep_if { true }