the patch is from HonoreDB <aweiner at mdsol.com>.
[fix GH-444]
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It's my fault.
This reverts commit 5e17fc6bc7cb8b0e58b05fa9ebf2c47ec73ecbb3.
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memo->v1 and memo->v2 is WB protected values.
So use MEMO_V1/V2_SET() macros to set these values.
memo->u3 is ambiguous (sometimes a VALUE, sometimes an integer
value), so use gc_mark_maybe() in gc.c to mark it.
Rename NEW_MEMO() to MEMO_NEW().
Move MEMO_FOR and NEW_MEMO_FOF macros from node.h.
Export a rb_imemo_new() function for ext/ripper.
* node.h: remove NODE_MEMO.
* enum.c: catch up these change.
* enumerator.c: ditto.
* load.c: ditto.
* ext/objspace/objspace.c (count_nodes): ditto.
* gc.c (gc_mark_children): mark imemo_memo type.
* parse.y (new_args_gen): use T_IMEMO.
(I'm not sure it is working correctly...)
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* enum.c (enum_each_slice, enum_each_cons): limit elements size by
the enumerator size. suggested by Hans Mackowiak <hanmac AT
gmx.de> at [ruby-core:68335]
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* use rb_funcallv() for no arguments call instead of variadic
rb_funcall().
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* enum.c (enum_inject): return nil if no iteration, instead of
Qundef.
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(struct nmin_data): New field to record the n-th maximumelement, limit
(nmin_filter): Update limit field.
(nmin_i): Drop too big eleents.
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descending order.
[ruby-core:65452] Suggested by David Grayson.
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* enum.c (enum_any): optimize object allocations for Array and
Hash when `each` is not redefined, always false if empty and the
case without a block. [fix GH-617]
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* enum.c (enum_each_slice, enum_each_cons): make more efficient by
allocating less and recycling block argument arrays if possible.
[Fixes GH-596]
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* enum.c (find_i): yield multiple values instead of a packed
array, so that lambda block can work. with tests by Alex
Rothenberg. [ruby-core:61340] [Bug #9605]
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optional argument.
(nmin_cmp): New function.
(nmin_block_cmp): Ditto
(nmin_filter): Ditto.
(nmin_i): Ditto.
(nmin_run): Ditto.
(enum_min): Call nmin_run if the optional argument is given.
(nmin_max): Ditto.
(nmin_min_by): Ditto.
(nmin_max_by): Ditto.
* range.c: Range#{min,max} extended to take an optional argument.
(range_min): Call range_first if the optional argument is given.
(range_max): Call rb_call_super if the optional argument is given.
[ruby-core:57111] [Feature #8887]
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* include/ruby/ruby.h (RB_BLOCK_CALL_FUNC_ARGLIST): for declaration
argument list of rb_block_call_func.
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