From 6724b1f83d2cad57bbcbcdc9756532d825b0c592 Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Sun, 1 Sep 2019 22:35:38 -0700
Subject: Revert "Make Enumerator::Lazy#with_index be lazy"

This reverts commit 83498854eb5a824f1f83c31fac18c9279f9ee10d.

This didn't pass rubyspec.
---
 enumerator.c | 66 ------------------------------------------------------------
 1 file changed, 66 deletions(-)

(limited to 'enumerator.c')

diff --git a/enumerator.c b/enumerator.c
index d4022aefc4..96daad2b4b 100644
--- a/enumerator.c
+++ b/enumerator.c
@@ -3597,71 +3597,6 @@ arith_seq_size(VALUE self)
     return len;
 }
 
-static VALUE
-lazy_with_index_func(RB_BLOCK_CALL_FUNC_ARGLIST(val, offset))
-{
-    VALUE yielder, memo, result;
-    VALUE e = rb_enum_values_pack(argc - 1, argv + 1);
-    long idx;
-
-    yielder = argv[0];
-    memo = rb_attr_get(yielder, id_memo);
-    if (NIL_P(memo))
-        memo = offset;
-    idx = NUM2LONG(memo);
-    result = rb_assoc_new(e, memo);
-    rb_funcall(yielder, idLTLT, 1, result);
-    rb_ivar_set(yielder, id_memo, LONG2NUM(++idx));
-    return Qnil;
-}
-
-static VALUE
-lazy_with_index_iter(RB_BLOCK_CALL_FUNC_ARGLIST(val, offset))
-{
-    VALUE yielder, memo, result;
-    VALUE e = rb_enum_values_pack(argc - 1, argv + 1);
-    long idx;
-
-    yielder = argv[0];
-    memo = rb_attr_get(yielder, id_memo);
-    if (NIL_P(memo))
-        memo = offset;
-    idx = NUM2LONG(memo);
-    result = rb_yield(rb_assoc_new(e, memo));
-    rb_funcall(yielder, idLTLT, 1, result);
-    rb_ivar_set(yielder, id_memo, LONG2NUM(++idx));
-    return Qnil;
-}
-
-/*
- *  call-seq:
- *     lazy.with_index(offset = 0) {|(*args), idx| ... }
- *     lazy.with_index(offset = 0)
- *
- *  Iterates the given block for each element with an index, which
- *  starts from +offset+.  If no block is given, returns a new
- *  lazy enumerator that includes the index, starting from +offset+
- *
- * +offset+:: the starting index to use
- *
- * see Enumerator#with_index.
- */
-static VALUE
-lazy_with_index(int argc, VALUE *argv, VALUE obj)
-{
-    VALUE memo;
-
-    rb_scan_args(argc, argv, "01", &memo);
-    if (NIL_P(memo))
-        memo = LONG2NUM(0);
-
-    return lazy_set_method(rb_block_call(rb_cLazy, id_new, 1, &obj,
-                                         rb_block_given_p() ?
-                                         lazy_with_index_iter : lazy_with_index_func,
-                                         memo),
-                           rb_ary_new_from_values(argc, argv), 0);
-}
-
 void
 InitVM_Enumerator(void)
 {
@@ -3719,7 +3654,6 @@ InitVM_Enumerator(void)
     rb_define_method(rb_cLazy, "slice_when", lazy_super, -1);
     rb_define_method(rb_cLazy, "chunk_while", lazy_super, -1);
     rb_define_method(rb_cLazy, "uniq", lazy_uniq, 0);
-    rb_define_method(rb_cLazy, "with_index", lazy_with_index, -1);
 
 #if 0 /* for RDoc */
     rb_define_method(rb_cLazy, "to_a", lazy_to_a, 0);
-- 
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