From 78a59da8bc242413c58723203aa007d0f3beecf0 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 3 Feb 2010 01:29:44 +0000
Subject: * enumerator.c: move implementation of each_slice, each_cons,  
 each_with_object to enum.c.

* enum.c (each_slice_i): convert multiple values from yield into
  an array.

* enum.c (each_cons_i): ditto.

* enum.c (each_with_object_i): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26546 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 enumerator.c | 142 -----------------------------------------------------------
 1 file changed, 142 deletions(-)

(limited to 'enumerator.c')

diff --git a/enumerator.c b/enumerator.c
index 34d16c057e..53cd49a361 100644
--- a/enumerator.c
+++ b/enumerator.c
@@ -179,144 +179,6 @@ obj_to_enum(int argc, VALUE *argv, VALUE obj)
     return rb_enumeratorize(obj, meth, argc, argv);
 }
 
-static VALUE
-each_slice_i(VALUE val, VALUE *memo)
-{
-    VALUE ary = memo[0];
-    VALUE v = Qnil;
-    long size = (long)memo[1];
-
-    rb_ary_push(ary, val);
-
-    if (RARRAY_LEN(ary) == size) {
-	v = rb_yield(ary);
-	memo[0] = rb_ary_new2(size);
-    }
-
-    return v;
-}
-
-/*
- *  call-seq:
- *    e.each_slice(n) {...}
- *    e.each_slice(n)
- *
- *  Iterates the given block for each slice of <n> elements.  If no
- *  block is given, returns an enumerator.
- *
- *  e.g.:
- *      (1..10).each_slice(3) {|a| p a}
- *      # outputs below
- *      [1, 2, 3]
- *      [4, 5, 6]
- *      [7, 8, 9]
- *      [10]
- *
- */
-static VALUE
-enum_each_slice(VALUE obj, VALUE n)
-{
-    long size = NUM2LONG(n);
-    VALUE args[2], ary;
-
-    if (size <= 0) rb_raise(rb_eArgError, "invalid slice size");
-    RETURN_ENUMERATOR(obj, 1, &n);
-    args[0] = rb_ary_new2(size);
-    args[1] = (VALUE)size;
-
-    rb_block_call(obj, id_each, 0, 0, each_slice_i, (VALUE)args);
-
-    ary = args[0];
-    if (RARRAY_LEN(ary) > 0) rb_yield(ary);
-
-    return Qnil;
-}
-
-static VALUE
-each_cons_i(VALUE val, VALUE *memo)
-{
-    VALUE ary = memo[0];
-    VALUE v = Qnil;
-    long size = (long)memo[1];
-
-    if (RARRAY_LEN(ary) == size) {
-	rb_ary_shift(ary);
-    }
-    rb_ary_push(ary, val);
-    if (RARRAY_LEN(ary) == size) {
-	v = rb_yield(rb_ary_dup(ary));
-    }
-    return v;
-}
-
-/*
- *  call-seq:
- *    each_cons(n) {...}
- *    each_cons(n)
- *
- *  Iterates the given block for each array of consecutive <n>
- *  elements.  If no block is given, returns an enumerator.
- *
- *  e.g.:
- *      (1..10).each_cons(3) {|a| p a}
- *      # outputs below
- *      [1, 2, 3]
- *      [2, 3, 4]
- *      [3, 4, 5]
- *      [4, 5, 6]
- *      [5, 6, 7]
- *      [6, 7, 8]
- *      [7, 8, 9]
- *      [8, 9, 10]
- *
- */
-static VALUE
-enum_each_cons(VALUE obj, VALUE n)
-{
-    long size = NUM2LONG(n);
-    VALUE args[2];
-
-    if (size <= 0) rb_raise(rb_eArgError, "invalid size");
-    RETURN_ENUMERATOR(obj, 1, &n);
-    args[0] = rb_ary_new2(size);
-    args[1] = (VALUE)size;
-
-    rb_block_call(obj, id_each, 0, 0, each_cons_i, (VALUE)args);
-
-    return Qnil;
-}
-
-static VALUE
-each_with_object_i(VALUE val, VALUE memo)
-{
-    return rb_yield_values(2, val, memo);
-}
-
-/*
- *  call-seq:
- *    each_with_object(obj) {|(*args), memo_obj| ... }
- *    each_with_object(obj)
- *
- *  Iterates the given block for each element with an arbitrary
- *  object given, and returns the initially given object.
- *
- *  If no block is given, returns an enumerator.
- *
- *  e.g.:
- *      evens = (1..10).each_with_object([]) {|i, a| a << i*2 }
- *      # => [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
- *
- */
-static VALUE
-enum_each_with_object(VALUE obj, VALUE memo)
-{
-    RETURN_ENUMERATOR(obj, 1, &memo);
-
-    rb_block_call(obj, id_each, 0, 0, each_with_object_i, memo);
-
-    return memo;
-}
-
 static VALUE
 enumerator_allocate(VALUE klass)
 {
@@ -1190,10 +1052,6 @@ Init_Enumerator(void)
     rb_define_method(rb_mKernel, "to_enum", obj_to_enum, -1);
     rb_define_method(rb_mKernel, "enum_for", obj_to_enum, -1);
 
-    rb_define_method(rb_mEnumerable, "each_slice", enum_each_slice, 1);
-    rb_define_method(rb_mEnumerable, "each_cons", enum_each_cons, 1);
-    rb_define_method(rb_mEnumerable, "each_with_object", enum_each_with_object, 1);
-
     rb_cEnumerator = rb_define_class("Enumerator", rb_cObject);
     rb_include_module(rb_cEnumerator, rb_mEnumerable);
 
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